drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/sched/clock.h>
  34 #include <linux/ctype.h>
  35 #include <linux/aer.h>
  36 #include <linux/slab.h>
  37 #include <linux/firmware.h>
  38 #include <linux/miscdevice.h>
  39 #include <linux/percpu.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include "lpfc_hw4.h"
  54 #include "lpfc_hw.h"
  55 #include "lpfc_sli.h"
  56 #include "lpfc_sli4.h"
  57 #include "lpfc_nl.h"
  58 #include "lpfc_disc.h"
  59 #include "lpfc.h"
  60 #include "lpfc_scsi.h"
  61 #include "lpfc_nvme.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 static enum cpuhp_state lpfc_cpuhp_state;
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71 static bool lpfc_pldv_detect;
  72
  73 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  75 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  80 static int lpfc_setup_endian_order(struct lpfc_hba *);
  81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  84 static void lpfc_init_sgl_list(struct lpfc_hba *);
  85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  86 static void lpfc_free_active_sgl(struct lpfc_hba *);
  87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  95 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  96 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  97 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  98 static void lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba);
  99
 100 static struct scsi_transport_template *lpfc_transport_template = NULL;
 101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 102 static DEFINE_IDR(lpfc_hba_index);
 103 #define LPFC_NVMET_BUF_POST 254
 104 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 105
 106 /**
 107  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 108  * @phba: pointer to lpfc hba data structure.
 109  *
 110  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 111  * mailbox command. It retrieves the revision information from the HBA and
 112  * collects the Vital Product Data (VPD) about the HBA for preparing the
 113  * configuration of the HBA.
 114  *
 115  * Return codes:
 116  *   0 - success.
 117  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 118  *   Any other value - indicates an error.
 119  **/
 120 int
 121 lpfc_config_port_prep(struct lpfc_hba *phba)
 122 {
 123         lpfc_vpd_t *vp = &phba->vpd;
 124         int i = 0, rc;
 125         LPFC_MBOXQ_t *pmb;
 126         MAILBOX_t *mb;
 127         char *lpfc_vpd_data = NULL;
 128         uint16_t offset = 0;
 129         static char licensed[56] =
 130                     "key unlock for use with gnu public licensed code only\0";
 131         static int init_key = 1;
 132
 133         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 134         if (!pmb) {
 135                 phba->link_state = LPFC_HBA_ERROR;
 136                 return -ENOMEM;
 137         }
 138
 139         mb = &pmb->u.mb;
 140         phba->link_state = LPFC_INIT_MBX_CMDS;
 141
 142         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 143                 if (init_key) {
 144                         uint32_t *ptext = (uint32_t *) licensed;
 145
 146                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 147                                 *ptext = cpu_to_be32(*ptext);
 148                         init_key = 0;
 149                 }
 150
 151                 lpfc_read_nv(phba, pmb);
 152                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 153                         sizeof (mb->un.varRDnvp.rsvd3));
 154                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 155                          sizeof (licensed));
 156
 157                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 158
 159                 if (rc != MBX_SUCCESS) {
 160                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 161                                         "0324 Config Port initialization "
 162                                         "error, mbxCmd x%x READ_NVPARM, "
 163                                         "mbxStatus x%x\n",
 164                                         mb->mbxCommand, mb->mbxStatus);
 165                         mempool_free(pmb, phba->mbox_mem_pool);
 166                         return -ERESTART;
 167                 }
 168                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 169                        sizeof(phba->wwnn));
 170                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 171                        sizeof(phba->wwpn));
 172         }
 173
 174         /*
 175          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 176          * which was already set in lpfc_get_cfgparam()
 177          */
 178         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 179
 180         /* Setup and issue mailbox READ REV command */
 181         lpfc_read_rev(phba, pmb);
 182         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 183         if (rc != MBX_SUCCESS) {
 184                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 185                                 "0439 Adapter failed to init, mbxCmd x%x "
 186                                 "READ_REV, mbxStatus x%x\n",
 187                                 mb->mbxCommand, mb->mbxStatus);
 188                 mempool_free( pmb, phba->mbox_mem_pool);
 189                 return -ERESTART;
 190         }
 191
 192
 193         /*
 194          * The value of rr must be 1 since the driver set the cv field to 1.
 195          * This setting requires the FW to set all revision fields.
 196          */
 197         if (mb->un.varRdRev.rr == 0) {
 198                 vp->rev.rBit = 0;
 199                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 200                                 "0440 Adapter failed to init, READ_REV has "
 201                                 "missing revision information.\n");
 202                 mempool_free(pmb, phba->mbox_mem_pool);
 203                 return -ERESTART;
 204         }
 205
 206         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 207                 mempool_free(pmb, phba->mbox_mem_pool);
 208                 return -EINVAL;
 209         }
 210
 211         /* Save information as VPD data */
 212         vp->rev.rBit = 1;
 213         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 214         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 215         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 216         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 217         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 218         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 219         vp->rev.smRev = mb->un.varRdRev.smRev;
 220         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 221         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 222         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 223         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 224         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 225         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 226         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 227         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 228
 229         /* If the sli feature level is less then 9, we must
 230          * tear down all RPIs and VPIs on link down if NPIV
 231          * is enabled.
 232          */
 233         if (vp->rev.feaLevelHigh < 9)
 234                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 235
 236         if (lpfc_is_LC_HBA(phba->pcidev->device))
 237                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 238                                                 sizeof (phba->RandomData));
 239
 240         /* Get adapter VPD information */
 241         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 242         if (!lpfc_vpd_data)
 243                 goto out_free_mbox;
 244         do {
 245                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 246                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 247
 248                 if (rc != MBX_SUCCESS) {
 249                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 250                                         "0441 VPD not present on adapter, "
 251                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 252                                         mb->mbxCommand, mb->mbxStatus);
 253                         mb->un.varDmp.word_cnt = 0;
 254                 }
 255                 /* dump mem may return a zero when finished or we got a
 256                  * mailbox error, either way we are done.
 257                  */
 258                 if (mb->un.varDmp.word_cnt == 0)
 259                         break;
 260
 261                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 262                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 263                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 264                                       lpfc_vpd_data + offset,
 265                                       mb->un.varDmp.word_cnt);
 266                 offset += mb->un.varDmp.word_cnt;
 267         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 268
 269         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 270
 271         kfree(lpfc_vpd_data);
 272 out_free_mbox:
 273         mempool_free(pmb, phba->mbox_mem_pool);
 274         return 0;
 275 }
 276
 277 /**
 278  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 279  * @phba: pointer to lpfc hba data structure.
 280  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 281  *
 282  * This is the completion handler for driver's configuring asynchronous event
 283  * mailbox command to the device. If the mailbox command returns successfully,
 284  * it will set internal async event support flag to 1; otherwise, it will
 285  * set internal async event support flag to 0.
 286  **/
 287 static void
 288 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 289 {
 290         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 291                 phba->temp_sensor_support = 1;
 292         else
 293                 phba->temp_sensor_support = 0;
 294         mempool_free(pmboxq, phba->mbox_mem_pool);
 295         return;
 296 }
 297
 298 /**
 299  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 300  * @phba: pointer to lpfc hba data structure.
 301  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 302  *
 303  * This is the completion handler for dump mailbox command for getting
 304  * wake up parameters. When this command complete, the response contain
 305  * Option rom version of the HBA. This function translate the version number
 306  * into a human readable string and store it in OptionROMVersion.
 307  **/
 308 static void
 309 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 310 {
 311         struct prog_id *prg;
 312         uint32_t prog_id_word;
 313         char dist = ' ';
 314         /* character array used for decoding dist type. */
 315         char dist_char[] = "nabx";
 316
 317         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 318                 mempool_free(pmboxq, phba->mbox_mem_pool);
 319                 return;
 320         }
 321
 322         prg = (struct prog_id *) &prog_id_word;
 323
 324         /* word 7 contain option rom version */
 325         prog_id_word = pmboxq->u.mb.un.varWords[7];
 326
 327         /* Decode the Option rom version word to a readable string */
 328         dist = dist_char[prg->dist];
 329
 330         if ((prg->dist == 3) && (prg->num == 0))
 331                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 332                         prg->ver, prg->rev, prg->lev);
 333         else
 334                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 335                         prg->ver, prg->rev, prg->lev,
 336                         dist, prg->num);
 337         mempool_free(pmboxq, phba->mbox_mem_pool);
 338         return;
 339 }
 340
 341 /**
 342  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 343  * @vport: pointer to lpfc vport data structure.
 344  *
 345  *
 346  * Return codes
 347  *   None.
 348  **/
 349 void
 350 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 351 {
 352         struct lpfc_hba *phba = vport->phba;
 353
 354         /*
 355          * If the name is empty or there exists a soft name
 356          * then copy the service params name, otherwise use the fc name
 357          */
 358         if (vport->fc_nodename.u.wwn[0] == 0)
 359                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 360                         sizeof(struct lpfc_name));
 361         else
 362                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 363                         sizeof(struct lpfc_name));
 364
 365         /*
 366          * If the port name has changed, then set the Param changes flag
 367          * to unreg the login
 368          */
 369         if (vport->fc_portname.u.wwn[0] != 0 &&
 370                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 371                        sizeof(struct lpfc_name))) {
 372                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 373
 374                 if (phba->sli_rev == LPFC_SLI_REV4 &&
 375                     vport->port_type == LPFC_PHYSICAL_PORT &&
 376                     phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) {
 377                         if (!(phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG))
 378                                 phba->sli4_hba.fawwpn_flag &=
 379                                                 ~LPFC_FAWWPN_FABRIC;
 380                         lpfc_printf_log(phba, KERN_INFO,
 381                                         LOG_SLI | LOG_DISCOVERY | LOG_ELS,
 382                                         "2701 FA-PWWN change WWPN from %llx to "
 383                                         "%llx: vflag x%x fawwpn_flag x%x\n",
 384                                         wwn_to_u64(vport->fc_portname.u.wwn),
 385                                         wwn_to_u64
 386                                            (vport->fc_sparam.portName.u.wwn),
 387                                         vport->vport_flag,
 388                                         phba->sli4_hba.fawwpn_flag);
 389                         memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 390                                sizeof(struct lpfc_name));
 391                 }
 392         }
 393
 394         if (vport->fc_portname.u.wwn[0] == 0)
 395                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 396                        sizeof(struct lpfc_name));
 397         else
 398                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 399                        sizeof(struct lpfc_name));
 400 }
 401
 402 /**
 403  * lpfc_config_port_post - Perform lpfc initialization after config port
 404  * @phba: pointer to lpfc hba data structure.
 405  *
 406  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 407  * command call. It performs all internal resource and state setups on the
 408  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 409  * ELS ring timers, etc.
 410  *
 411  * Return codes
 412  *   0 - success.
 413  *   Any other value - error.
 414  **/
 415 int
 416 lpfc_config_port_post(struct lpfc_hba *phba)
 417 {
 418         struct lpfc_vport *vport = phba->pport;
 419         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 420         LPFC_MBOXQ_t *pmb;
 421         MAILBOX_t *mb;
 422         struct lpfc_dmabuf *mp;
 423         struct lpfc_sli *psli = &phba->sli;
 424         uint32_t status, timeout;
 425         int i, j;
 426         int rc;
 427
 428         spin_lock_irq(&phba->hbalock);
 429         /*
 430          * If the Config port completed correctly the HBA is not
 431          * over heated any more.
 432          */
 433         if (phba->over_temp_state == HBA_OVER_TEMP)
 434                 phba->over_temp_state = HBA_NORMAL_TEMP;
 435         spin_unlock_irq(&phba->hbalock);
 436
 437         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 438         if (!pmb) {
 439                 phba->link_state = LPFC_HBA_ERROR;
 440                 return -ENOMEM;
 441         }
 442         mb = &pmb->u.mb;
 443
 444         /* Get login parameters for NID.  */
 445         rc = lpfc_read_sparam(phba, pmb, 0);
 446         if (rc) {
 447                 mempool_free(pmb, phba->mbox_mem_pool);
 448                 return -ENOMEM;
 449         }
 450
 451         pmb->vport = vport;
 452         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 453                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 454                                 "0448 Adapter failed init, mbxCmd x%x "
 455                                 "READ_SPARM mbxStatus x%x\n",
 456                                 mb->mbxCommand, mb->mbxStatus);
 457                 phba->link_state = LPFC_HBA_ERROR;
 458                 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
 459                 return -EIO;
 460         }
 461
 462         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 463
 464         /* This dmabuf was allocated by lpfc_read_sparam. The dmabuf is no
 465          * longer needed.  Prevent unintended ctx_buf access as the mbox is
 466          * reused.
 467          */
 468         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 469         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 470         kfree(mp);
 471         pmb->ctx_buf = NULL;
 472         lpfc_update_vport_wwn(vport);
 473
 474         /* Update the fc_host data structures with new wwn. */
 475         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 476         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 477         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 478
 479         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 480         /* This should be consolidated into parse_vpd ? - mr */
 481         if (phba->SerialNumber[0] == 0) {
 482                 uint8_t *outptr;
 483
 484                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 485                 for (i = 0; i < 12; i++) {
 486                         status = *outptr++;
 487                         j = ((status & 0xf0) >> 4);
 488                         if (j <= 9)
 489                                 phba->SerialNumber[i] =
 490                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 491                         else
 492                                 phba->SerialNumber[i] =
 493                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 494                         i++;
 495                         j = (status & 0xf);
 496                         if (j <= 9)
 497                                 phba->SerialNumber[i] =
 498                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 499                         else
 500                                 phba->SerialNumber[i] =
 501                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 502                 }
 503         }
 504
 505         lpfc_read_config(phba, pmb);
 506         pmb->vport = vport;
 507         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 508                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 509                                 "0453 Adapter failed to init, mbxCmd x%x "
 510                                 "READ_CONFIG, mbxStatus x%x\n",
 511                                 mb->mbxCommand, mb->mbxStatus);
 512                 phba->link_state = LPFC_HBA_ERROR;
 513                 mempool_free( pmb, phba->mbox_mem_pool);
 514                 return -EIO;
 515         }
 516
 517         /* Check if the port is disabled */
 518         lpfc_sli_read_link_ste(phba);
 519
 520         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 521         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 522                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 523                                 "3359 HBA queue depth changed from %d to %d\n",
 524                                 phba->cfg_hba_queue_depth,
 525                                 mb->un.varRdConfig.max_xri);
 526                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 527         }
 528
 529         phba->lmt = mb->un.varRdConfig.lmt;
 530
 531         /* Get the default values for Model Name and Description */
 532         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 533
 534         phba->link_state = LPFC_LINK_DOWN;
 535
 536         /* Only process IOCBs on ELS ring till hba_state is READY */
 537         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 538                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 539         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 540                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 541
 542         /* Post receive buffers for desired rings */
 543         if (phba->sli_rev != 3)
 544                 lpfc_post_rcv_buf(phba);
 545
 546         /*
 547          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 548          */
 549         if (phba->intr_type == MSIX) {
 550                 rc = lpfc_config_msi(phba, pmb);
 551                 if (rc) {
 552                         mempool_free(pmb, phba->mbox_mem_pool);
 553                         return -EIO;
 554                 }
 555                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 556                 if (rc != MBX_SUCCESS) {
 557                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 558                                         "0352 Config MSI mailbox command "
 559                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 560                                         pmb->u.mb.mbxCommand,
 561                                         pmb->u.mb.mbxStatus);
 562                         mempool_free(pmb, phba->mbox_mem_pool);
 563                         return -EIO;
 564                 }
 565         }
 566
 567         spin_lock_irq(&phba->hbalock);
 568         /* Initialize ERATT handling flag */
 569         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 570
 571         /* Enable appropriate host interrupts */
 572         if (lpfc_readl(phba->HCregaddr, &status)) {
 573                 spin_unlock_irq(&phba->hbalock);
 574                 return -EIO;
 575         }
 576         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 577         if (psli->num_rings > 0)
 578                 status |= HC_R0INT_ENA;
 579         if (psli->num_rings > 1)
 580                 status |= HC_R1INT_ENA;
 581         if (psli->num_rings > 2)
 582                 status |= HC_R2INT_ENA;
 583         if (psli->num_rings > 3)
 584                 status |= HC_R3INT_ENA;
 585
 586         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 587             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 588                 status &= ~(HC_R0INT_ENA);
 589
 590         writel(status, phba->HCregaddr);
 591         readl(phba->HCregaddr); /* flush */
 592         spin_unlock_irq(&phba->hbalock);
 593
 594         /* Set up ring-0 (ELS) timer */
 595         timeout = phba->fc_ratov * 2;
 596         mod_timer(&vport->els_tmofunc,
 597                   jiffies + msecs_to_jiffies(1000 * timeout));
 598         /* Set up heart beat (HB) timer */
 599         mod_timer(&phba->hb_tmofunc,
 600                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 601         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
 602         phba->last_completion_time = jiffies;
 603         /* Set up error attention (ERATT) polling timer */
 604         mod_timer(&phba->eratt_poll,
 605                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 606
 607         if (phba->hba_flag & LINK_DISABLED) {
 608                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 609                                 "2598 Adapter Link is disabled.\n");
 610                 lpfc_down_link(phba, pmb);
 611                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 612                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 613                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 614                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 615                                         "2599 Adapter failed to issue DOWN_LINK"
 616                                         " mbox command rc 0x%x\n", rc);
 617
 618                         mempool_free(pmb, phba->mbox_mem_pool);
 619                         return -EIO;
 620                 }
 621         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 622                 mempool_free(pmb, phba->mbox_mem_pool);
 623                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 624                 if (rc)
 625                         return rc;
 626         }
 627         /* MBOX buffer will be freed in mbox compl */
 628         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 629         if (!pmb) {
 630                 phba->link_state = LPFC_HBA_ERROR;
 631                 return -ENOMEM;
 632         }
 633
 634         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 635         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 636         pmb->vport = phba->pport;
 637         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 638
 639         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 640                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 641                                 "0456 Adapter failed to issue "
 642                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 643                                 rc);
 644                 mempool_free(pmb, phba->mbox_mem_pool);
 645         }
 646
 647         /* Get Option rom version */
 648         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 649         if (!pmb) {
 650                 phba->link_state = LPFC_HBA_ERROR;
 651                 return -ENOMEM;
 652         }
 653
 654         lpfc_dump_wakeup_param(phba, pmb);
 655         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 656         pmb->vport = phba->pport;
 657         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 658
 659         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 660                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 661                                 "0435 Adapter failed "
 662                                 "to get Option ROM version status x%x\n", rc);
 663                 mempool_free(pmb, phba->mbox_mem_pool);
 664         }
 665
 666         return 0;
 667 }
 668
 669 /**
 670  * lpfc_sli4_refresh_params - update driver copy of params.
 671  * @phba: Pointer to HBA context object.
 672  *
 673  * This is called to refresh driver copy of dynamic fields from the
 674  * common_get_sli4_parameters descriptor.
 675  **/
 676 int
 677 lpfc_sli4_refresh_params(struct lpfc_hba *phba)
 678 {
 679         LPFC_MBOXQ_t *mboxq;
 680         struct lpfc_mqe *mqe;
 681         struct lpfc_sli4_parameters *mbx_sli4_parameters;
 682         int length, rc;
 683
 684         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 685         if (!mboxq)
 686                 return -ENOMEM;
 687
 688         mqe = &mboxq->u.mqe;
 689         /* Read the port's SLI4 Config Parameters */
 690         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
 691                   sizeof(struct lpfc_sli4_cfg_mhdr));
 692         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
 693                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
 694                          length, LPFC_SLI4_MBX_EMBED);
 695
 696         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 697         if (unlikely(rc)) {
 698                 mempool_free(mboxq, phba->mbox_mem_pool);
 699                 return rc;
 700         }
 701         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
 702         phba->sli4_hba.pc_sli4_params.mi_cap =
 703                 bf_get(cfg_mi_ver, mbx_sli4_parameters);
 704
 705         /* Are we forcing MI off via module parameter? */
 706         if (phba->cfg_enable_mi)
 707                 phba->sli4_hba.pc_sli4_params.mi_ver =
 708                         bf_get(cfg_mi_ver, mbx_sli4_parameters);
 709         else
 710                 phba->sli4_hba.pc_sli4_params.mi_ver = 0;
 711
 712         phba->sli4_hba.pc_sli4_params.cmf =
 713                         bf_get(cfg_cmf, mbx_sli4_parameters);
 714         phba->sli4_hba.pc_sli4_params.pls =
 715                         bf_get(cfg_pvl, mbx_sli4_parameters);
 716
 717         mempool_free(mboxq, phba->mbox_mem_pool);
 718         return rc;
 719 }
 720
 721 /**
 722  * lpfc_hba_init_link - Initialize the FC link
 723  * @phba: pointer to lpfc hba data structure.
 724  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 725  *
 726  * This routine will issue the INIT_LINK mailbox command call.
 727  * It is available to other drivers through the lpfc_hba data
 728  * structure for use as a delayed link up mechanism with the
 729  * module parameter lpfc_suppress_link_up.
 730  *
 731  * Return code
 732  *              0 - success
 733  *              Any other value - error
 734  **/
 735 static int
 736 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 737 {
 738         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 739 }
 740
 741 /**
 742  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 743  * @phba: pointer to lpfc hba data structure.
 744  * @fc_topology: desired fc topology.
 745  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 746  *
 747  * This routine will issue the INIT_LINK mailbox command call.
 748  * It is available to other drivers through the lpfc_hba data
 749  * structure for use as a delayed link up mechanism with the
 750  * module parameter lpfc_suppress_link_up.
 751  *
 752  * Return code
 753  *              0 - success
 754  *              Any other value - error
 755  **/
 756 int
 757 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 758                                uint32_t flag)
 759 {
 760         struct lpfc_vport *vport = phba->pport;
 761         LPFC_MBOXQ_t *pmb;
 762         MAILBOX_t *mb;
 763         int rc;
 764
 765         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 766         if (!pmb) {
 767                 phba->link_state = LPFC_HBA_ERROR;
 768                 return -ENOMEM;
 769         }
 770         mb = &pmb->u.mb;
 771         pmb->vport = vport;
 772
 773         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 774             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 775              !(phba->lmt & LMT_1Gb)) ||
 776             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 777              !(phba->lmt & LMT_2Gb)) ||
 778             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 779              !(phba->lmt & LMT_4Gb)) ||
 780             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 781              !(phba->lmt & LMT_8Gb)) ||
 782             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 783              !(phba->lmt & LMT_10Gb)) ||
 784             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 785              !(phba->lmt & LMT_16Gb)) ||
 786             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 787              !(phba->lmt & LMT_32Gb)) ||
 788             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 789              !(phba->lmt & LMT_64Gb))) {
 790                 /* Reset link speed to auto */
 791                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 792                                 "1302 Invalid speed for this board:%d "
 793                                 "Reset link speed to auto.\n",
 794                                 phba->cfg_link_speed);
 795                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 796         }
 797         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 798         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 799         if (phba->sli_rev < LPFC_SLI_REV4)
 800                 lpfc_set_loopback_flag(phba);
 801         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 802         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 803                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 804                                 "0498 Adapter failed to init, mbxCmd x%x "
 805                                 "INIT_LINK, mbxStatus x%x\n",
 806                                 mb->mbxCommand, mb->mbxStatus);
 807                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 808                         /* Clear all interrupt enable conditions */
 809                         writel(0, phba->HCregaddr);
 810                         readl(phba->HCregaddr); /* flush */
 811                         /* Clear all pending interrupts */
 812                         writel(0xffffffff, phba->HAregaddr);
 813                         readl(phba->HAregaddr); /* flush */
 814                 }
 815                 phba->link_state = LPFC_HBA_ERROR;
 816                 if (rc != MBX_BUSY || flag == MBX_POLL)
 817                         mempool_free(pmb, phba->mbox_mem_pool);
 818                 return -EIO;
 819         }
 820         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 821         if (flag == MBX_POLL)
 822                 mempool_free(pmb, phba->mbox_mem_pool);
 823
 824         return 0;
 825 }
 826
 827 /**
 828  * lpfc_hba_down_link - this routine downs the FC link
 829  * @phba: pointer to lpfc hba data structure.
 830  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 831  *
 832  * This routine will issue the DOWN_LINK mailbox command call.
 833  * It is available to other drivers through the lpfc_hba data
 834  * structure for use to stop the link.
 835  *
 836  * Return code
 837  *              0 - success
 838  *              Any other value - error
 839  **/
 840 static int
 841 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 842 {
 843         LPFC_MBOXQ_t *pmb;
 844         int rc;
 845
 846         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 847         if (!pmb) {
 848                 phba->link_state = LPFC_HBA_ERROR;
 849                 return -ENOMEM;
 850         }
 851
 852         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 853                         "0491 Adapter Link is disabled.\n");
 854         lpfc_down_link(phba, pmb);
 855         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 856         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 857         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 858                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 859                                 "2522 Adapter failed to issue DOWN_LINK"
 860                                 " mbox command rc 0x%x\n", rc);
 861
 862                 mempool_free(pmb, phba->mbox_mem_pool);
 863                 return -EIO;
 864         }
 865         if (flag == MBX_POLL)
 866                 mempool_free(pmb, phba->mbox_mem_pool);
 867
 868         return 0;
 869 }
 870
 871 /**
 872  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 873  * @phba: pointer to lpfc HBA data structure.
 874  *
 875  * This routine will do LPFC uninitialization before the HBA is reset when
 876  * bringing down the SLI Layer.
 877  *
 878  * Return codes
 879  *   0 - success.
 880  *   Any other value - error.
 881  **/
 882 int
 883 lpfc_hba_down_prep(struct lpfc_hba *phba)
 884 {
 885         struct lpfc_vport **vports;
 886         int i;
 887
 888         if (phba->sli_rev <= LPFC_SLI_REV3) {
 889                 /* Disable interrupts */
 890                 writel(0, phba->HCregaddr);
 891                 readl(phba->HCregaddr); /* flush */
 892         }
 893
 894         if (phba->pport->load_flag & FC_UNLOADING)
 895                 lpfc_cleanup_discovery_resources(phba->pport);
 896         else {
 897                 vports = lpfc_create_vport_work_array(phba);
 898                 if (vports != NULL)
 899                         for (i = 0; i <= phba->max_vports &&
 900                                 vports[i] != NULL; i++)
 901                                 lpfc_cleanup_discovery_resources(vports[i]);
 902                 lpfc_destroy_vport_work_array(phba, vports);
 903         }
 904         return 0;
 905 }
 906
 907 /**
 908  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 909  * rspiocb which got deferred
 910  *
 911  * @phba: pointer to lpfc HBA data structure.
 912  *
 913  * This routine will cleanup completed slow path events after HBA is reset
 914  * when bringing down the SLI Layer.
 915  *
 916  *
 917  * Return codes
 918  *   void.
 919  **/
 920 static void
 921 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 922 {
 923         struct lpfc_iocbq *rspiocbq;
 924         struct hbq_dmabuf *dmabuf;
 925         struct lpfc_cq_event *cq_event;
 926
 927         spin_lock_irq(&phba->hbalock);
 928         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 929         spin_unlock_irq(&phba->hbalock);
 930
 931         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 932                 /* Get the response iocb from the head of work queue */
 933                 spin_lock_irq(&phba->hbalock);
 934                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 935                                  cq_event, struct lpfc_cq_event, list);
 936                 spin_unlock_irq(&phba->hbalock);
 937
 938                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 939                 case CQE_CODE_COMPL_WQE:
 940                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 941                                                  cq_event);
 942                         lpfc_sli_release_iocbq(phba, rspiocbq);
 943                         break;
 944                 case CQE_CODE_RECEIVE:
 945                 case CQE_CODE_RECEIVE_V1:
 946                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 947                                               cq_event);
 948                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 949                 }
 950         }
 951 }
 952
 953 /**
 954  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 955  * @phba: pointer to lpfc HBA data structure.
 956  *
 957  * This routine will cleanup posted ELS buffers after the HBA is reset
 958  * when bringing down the SLI Layer.
 959  *
 960  *
 961  * Return codes
 962  *   void.
 963  **/
 964 static void
 965 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 966 {
 967         struct lpfc_sli *psli = &phba->sli;
 968         struct lpfc_sli_ring *pring;
 969         struct lpfc_dmabuf *mp, *next_mp;
 970         LIST_HEAD(buflist);
 971         int count;
 972
 973         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 974                 lpfc_sli_hbqbuf_free_all(phba);
 975         else {
 976                 /* Cleanup preposted buffers on the ELS ring */
 977                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 978                 spin_lock_irq(&phba->hbalock);
 979                 list_splice_init(&pring->postbufq, &buflist);
 980                 spin_unlock_irq(&phba->hbalock);
 981
 982                 count = 0;
 983                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 984                         list_del(&mp->list);
 985                         count++;
 986                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 987                         kfree(mp);
 988                 }
 989
 990                 spin_lock_irq(&phba->hbalock);
 991                 pring->postbufq_cnt -= count;
 992                 spin_unlock_irq(&phba->hbalock);
 993         }
 994 }
 995
 996 /**
 997  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will cleanup the txcmplq after the HBA is reset when bringing
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   void
1005  **/
1006 static void
1007 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
1008 {
1009         struct lpfc_sli *psli = &phba->sli;
1010         struct lpfc_queue *qp = NULL;
1011         struct lpfc_sli_ring *pring;
1012         LIST_HEAD(completions);
1013         int i;
1014         struct lpfc_iocbq *piocb, *next_iocb;
1015
1016         if (phba->sli_rev != LPFC_SLI_REV4) {
1017                 for (i = 0; i < psli->num_rings; i++) {
1018                         pring = &psli->sli3_ring[i];
1019                         spin_lock_irq(&phba->hbalock);
1020                         /* At this point in time the HBA is either reset or DOA
1021                          * Nothing should be on txcmplq as it will
1022                          * NEVER complete.
1023                          */
1024                         list_splice_init(&pring->txcmplq, &completions);
1025                         pring->txcmplq_cnt = 0;
1026                         spin_unlock_irq(&phba->hbalock);
1027
1028                         lpfc_sli_abort_iocb_ring(phba, pring);
1029                 }
1030                 /* Cancel all the IOCBs from the completions list */
1031                 lpfc_sli_cancel_iocbs(phba, &completions,
1032                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1033                 return;
1034         }
1035         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1036                 pring = qp->pring;
1037                 if (!pring)
1038                         continue;
1039                 spin_lock_irq(&pring->ring_lock);
1040                 list_for_each_entry_safe(piocb, next_iocb,
1041                                          &pring->txcmplq, list)
1042                         piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
1043                 list_splice_init(&pring->txcmplq, &completions);
1044                 pring->txcmplq_cnt = 0;
1045                 spin_unlock_irq(&pring->ring_lock);
1046                 lpfc_sli_abort_iocb_ring(phba, pring);
1047         }
1048         /* Cancel all the IOCBs from the completions list */
1049         lpfc_sli_cancel_iocbs(phba, &completions,
1050                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1051 }
1052
1053 /**
1054  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1055  * @phba: pointer to lpfc HBA data structure.
1056  *
1057  * This routine will do uninitialization after the HBA is reset when bring
1058  * down the SLI Layer.
1059  *
1060  * Return codes
1061  *   0 - success.
1062  *   Any other value - error.
1063  **/
1064 static int
1065 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1066 {
1067         lpfc_hba_free_post_buf(phba);
1068         lpfc_hba_clean_txcmplq(phba);
1069         return 0;
1070 }
1071
1072 /**
1073  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1074  * @phba: pointer to lpfc HBA data structure.
1075  *
1076  * This routine will do uninitialization after the HBA is reset when bring
1077  * down the SLI Layer.
1078  *
1079  * Return codes
1080  *   0 - success.
1081  *   Any other value - error.
1082  **/
1083 static int
1084 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1085 {
1086         struct lpfc_io_buf *psb, *psb_next;
1087         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1088         struct lpfc_sli4_hdw_queue *qp;
1089         LIST_HEAD(aborts);
1090         LIST_HEAD(nvme_aborts);
1091         LIST_HEAD(nvmet_aborts);
1092         struct lpfc_sglq *sglq_entry = NULL;
1093         int cnt, idx;
1094
1095
1096         lpfc_sli_hbqbuf_free_all(phba);
1097         lpfc_hba_clean_txcmplq(phba);
1098
1099         /* At this point in time the HBA is either reset or DOA. Either
1100          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1101          * on the lpfc_els_sgl_list so that it can either be freed if the
1102          * driver is unloading or reposted if the driver is restarting
1103          * the port.
1104          */
1105
1106         /* sgl_list_lock required because worker thread uses this
1107          * list.
1108          */
1109         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1110         list_for_each_entry(sglq_entry,
1111                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1112                 sglq_entry->state = SGL_FREED;
1113
1114         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1115                         &phba->sli4_hba.lpfc_els_sgl_list);
1116
1117
1118         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1119
1120         /* abts_xxxx_buf_list_lock required because worker thread uses this
1121          * list.
1122          */
1123         spin_lock_irq(&phba->hbalock);
1124         cnt = 0;
1125         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1126                 qp = &phba->sli4_hba.hdwq[idx];
1127
1128                 spin_lock(&qp->abts_io_buf_list_lock);
1129                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1130                                  &aborts);
1131
1132                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1133                         psb->pCmd = NULL;
1134                         psb->status = IOSTAT_SUCCESS;
1135                         cnt++;
1136                 }
1137                 spin_lock(&qp->io_buf_list_put_lock);
1138                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1139                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1140                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1141                 qp->abts_scsi_io_bufs = 0;
1142                 qp->abts_nvme_io_bufs = 0;
1143                 spin_unlock(&qp->io_buf_list_put_lock);
1144                 spin_unlock(&qp->abts_io_buf_list_lock);
1145         }
1146         spin_unlock_irq(&phba->hbalock);
1147
1148         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1149                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1150                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1151                                  &nvmet_aborts);
1152                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1153                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1154                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1155                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1156                 }
1157         }
1158
1159         lpfc_sli4_free_sp_events(phba);
1160         return cnt;
1161 }
1162
1163 /**
1164  * lpfc_hba_down_post - Wrapper func for hba down post routine
1165  * @phba: pointer to lpfc HBA data structure.
1166  *
1167  * This routine wraps the actual SLI3 or SLI4 routine for performing
1168  * uninitialization after the HBA is reset when bring down the SLI Layer.
1169  *
1170  * Return codes
1171  *   0 - success.
1172  *   Any other value - error.
1173  **/
1174 int
1175 lpfc_hba_down_post(struct lpfc_hba *phba)
1176 {
1177         return (*phba->lpfc_hba_down_post)(phba);
1178 }
1179
1180 /**
1181  * lpfc_hb_timeout - The HBA-timer timeout handler
1182  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1183  *
1184  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1185  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1186  * work-port-events bitmap and the worker thread is notified. This timeout
1187  * event will be used by the worker thread to invoke the actual timeout
1188  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1189  * be performed in the timeout handler and the HBA timeout event bit shall
1190  * be cleared by the worker thread after it has taken the event bitmap out.
1191  **/
1192 static void
1193 lpfc_hb_timeout(struct timer_list *t)
1194 {
1195         struct lpfc_hba *phba;
1196         uint32_t tmo_posted;
1197         unsigned long iflag;
1198
1199         phba = from_timer(phba, t, hb_tmofunc);
1200
1201         /* Check for heart beat timeout conditions */
1202         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1203         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1204         if (!tmo_posted)
1205                 phba->pport->work_port_events |= WORKER_HB_TMO;
1206         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1207
1208         /* Tell the worker thread there is work to do */
1209         if (!tmo_posted)
1210                 lpfc_worker_wake_up(phba);
1211         return;
1212 }
1213
1214 /**
1215  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1216  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1217  *
1218  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1219  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1220  * work-port-events bitmap and the worker thread is notified. This timeout
1221  * event will be used by the worker thread to invoke the actual timeout
1222  * handler routine, lpfc_rrq_handler. Any periodical operations will
1223  * be performed in the timeout handler and the RRQ timeout event bit shall
1224  * be cleared by the worker thread after it has taken the event bitmap out.
1225  **/
1226 static void
1227 lpfc_rrq_timeout(struct timer_list *t)
1228 {
1229         struct lpfc_hba *phba;
1230         unsigned long iflag;
1231
1232         phba = from_timer(phba, t, rrq_tmr);
1233         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1234         if (!(phba->pport->load_flag & FC_UNLOADING))
1235                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1236         else
1237                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1238         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1239
1240         if (!(phba->pport->load_flag & FC_UNLOADING))
1241                 lpfc_worker_wake_up(phba);
1242 }
1243
1244 /**
1245  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1246  * @phba: pointer to lpfc hba data structure.
1247  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1248  *
1249  * This is the callback function to the lpfc heart-beat mailbox command.
1250  * If configured, the lpfc driver issues the heart-beat mailbox command to
1251  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1252  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1253  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1254  * heart-beat outstanding state. Once the mailbox command comes back and
1255  * no error conditions detected, the heart-beat mailbox command timer is
1256  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1257  * state is cleared for the next heart-beat. If the timer expired with the
1258  * heart-beat outstanding state set, the driver will put the HBA offline.
1259  **/
1260 static void
1261 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1262 {
1263         unsigned long drvr_flag;
1264
1265         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1266         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1267         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1268
1269         /* Check and reset heart-beat timer if necessary */
1270         mempool_free(pmboxq, phba->mbox_mem_pool);
1271         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1272                 !(phba->link_state == LPFC_HBA_ERROR) &&
1273                 !(phba->pport->load_flag & FC_UNLOADING))
1274                 mod_timer(&phba->hb_tmofunc,
1275                           jiffies +
1276                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1277         return;
1278 }
1279
1280 /*
1281  * lpfc_idle_stat_delay_work - idle_stat tracking
1282  *
1283  * This routine tracks per-cq idle_stat and determines polling decisions.
1284  *
1285  * Return codes:
1286  *   None
1287  **/
1288 static void
1289 lpfc_idle_stat_delay_work(struct work_struct *work)
1290 {
1291         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1292                                              struct lpfc_hba,
1293                                              idle_stat_delay_work);
1294         struct lpfc_queue *cq;
1295         struct lpfc_sli4_hdw_queue *hdwq;
1296         struct lpfc_idle_stat *idle_stat;
1297         u32 i, idle_percent;
1298         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1299
1300         if (phba->pport->load_flag & FC_UNLOADING)
1301                 return;
1302
1303         if (phba->link_state == LPFC_HBA_ERROR ||
1304             phba->pport->fc_flag & FC_OFFLINE_MODE ||
1305             phba->cmf_active_mode != LPFC_CFG_OFF)
1306                 goto requeue;
1307
1308         for_each_present_cpu(i) {
1309                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1310                 cq = hdwq->io_cq;
1311
1312                 /* Skip if we've already handled this cq's primary CPU */
1313                 if (cq->chann != i)
1314                         continue;
1315
1316                 idle_stat = &phba->sli4_hba.idle_stat[i];
1317
1318                 /* get_cpu_idle_time returns values as running counters. Thus,
1319                  * to know the amount for this period, the prior counter values
1320                  * need to be subtracted from the current counter values.
1321                  * From there, the idle time stat can be calculated as a
1322                  * percentage of 100 - the sum of the other consumption times.
1323                  */
1324                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1325                 diff_idle = wall_idle - idle_stat->prev_idle;
1326                 diff_wall = wall - idle_stat->prev_wall;
1327
1328                 if (diff_wall <= diff_idle)
1329                         busy_time = 0;
1330                 else
1331                         busy_time = diff_wall - diff_idle;
1332
1333                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1334                 idle_percent = 100 - idle_percent;
1335
1336                 if (idle_percent < 15)
1337                         cq->poll_mode = LPFC_QUEUE_WORK;
1338                 else
1339                         cq->poll_mode = LPFC_IRQ_POLL;
1340
1341                 idle_stat->prev_idle = wall_idle;
1342                 idle_stat->prev_wall = wall;
1343         }
1344
1345 requeue:
1346         schedule_delayed_work(&phba->idle_stat_delay_work,
1347                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1348 }
1349
1350 static void
1351 lpfc_hb_eq_delay_work(struct work_struct *work)
1352 {
1353         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1354                                              struct lpfc_hba, eq_delay_work);
1355         struct lpfc_eq_intr_info *eqi, *eqi_new;
1356         struct lpfc_queue *eq, *eq_next;
1357         unsigned char *ena_delay = NULL;
1358         uint32_t usdelay;
1359         int i;
1360
1361         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1362                 return;
1363
1364         if (phba->link_state == LPFC_HBA_ERROR ||
1365             phba->pport->fc_flag & FC_OFFLINE_MODE)
1366                 goto requeue;
1367
1368         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1369                             GFP_KERNEL);
1370         if (!ena_delay)
1371                 goto requeue;
1372
1373         for (i = 0; i < phba->cfg_irq_chann; i++) {
1374                 /* Get the EQ corresponding to the IRQ vector */
1375                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1376                 if (!eq)
1377                         continue;
1378                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1379                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1380                         ena_delay[eq->last_cpu] = 1;
1381                 }
1382         }
1383
1384         for_each_present_cpu(i) {
1385                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1386                 if (ena_delay[i]) {
1387                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1388                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1389                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1390                 } else {
1391                         usdelay = 0;
1392                 }
1393
1394                 eqi->icnt = 0;
1395
1396                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1397                         if (unlikely(eq->last_cpu != i)) {
1398                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1399                                                       eq->last_cpu);
1400                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1401                                 continue;
1402                         }
1403                         if (usdelay != eq->q_mode)
1404                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1405                                                          usdelay);
1406                 }
1407         }
1408
1409         kfree(ena_delay);
1410
1411 requeue:
1412         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1413                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1414 }
1415
1416 /**
1417  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1418  * @phba: pointer to lpfc hba data structure.
1419  *
1420  * For each heartbeat, this routine does some heuristic methods to adjust
1421  * XRI distribution. The goal is to fully utilize free XRIs.
1422  **/
1423 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1424 {
1425         u32 i;
1426         u32 hwq_count;
1427
1428         hwq_count = phba->cfg_hdw_queue;
1429         for (i = 0; i < hwq_count; i++) {
1430                 /* Adjust XRIs in private pool */
1431                 lpfc_adjust_pvt_pool_count(phba, i);
1432
1433                 /* Adjust high watermark */
1434                 lpfc_adjust_high_watermark(phba, i);
1435
1436 #ifdef LPFC_MXP_STAT
1437                 /* Snapshot pbl, pvt and busy count */
1438                 lpfc_snapshot_mxp(phba, i);
1439 #endif
1440         }
1441 }
1442
1443 /**
1444  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1445  * @phba: pointer to lpfc hba data structure.
1446  *
1447  * If a HB mbox is not already in progrees, this routine will allocate
1448  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1449  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1450  **/
1451 int
1452 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1453 {
1454         LPFC_MBOXQ_t *pmboxq;
1455         int retval;
1456
1457         /* Is a Heartbeat mbox already in progress */
1458         if (phba->hba_flag & HBA_HBEAT_INP)
1459                 return 0;
1460
1461         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1462         if (!pmboxq)
1463                 return -ENOMEM;
1464
1465         lpfc_heart_beat(phba, pmboxq);
1466         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1467         pmboxq->vport = phba->pport;
1468         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1469
1470         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1471                 mempool_free(pmboxq, phba->mbox_mem_pool);
1472                 return -ENXIO;
1473         }
1474         phba->hba_flag |= HBA_HBEAT_INP;
1475
1476         return 0;
1477 }
1478
1479 /**
1480  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1481  * @phba: pointer to lpfc hba data structure.
1482  *
1483  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1484  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1485  * of the value of lpfc_enable_hba_heartbeat.
1486  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1487  * try to issue a MBX_HEARTBEAT mbox command.
1488  **/
1489 void
1490 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1491 {
1492         if (phba->cfg_enable_hba_heartbeat)
1493                 return;
1494         phba->hba_flag |= HBA_HBEAT_TMO;
1495 }
1496
1497 /**
1498  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1499  * @phba: pointer to lpfc hba data structure.
1500  *
1501  * This is the actual HBA-timer timeout handler to be invoked by the worker
1502  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1503  * handler performs any periodic operations needed for the device. If such
1504  * periodic event has already been attended to either in the interrupt handler
1505  * or by processing slow-ring or fast-ring events within the HBA-timer
1506  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1507  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1508  * is configured and there is no heart-beat mailbox command outstanding, a
1509  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1510  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1511  * to offline.
1512  **/
1513 void
1514 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1515 {
1516         struct lpfc_vport **vports;
1517         struct lpfc_dmabuf *buf_ptr;
1518         int retval = 0;
1519         int i, tmo;
1520         struct lpfc_sli *psli = &phba->sli;
1521         LIST_HEAD(completions);
1522
1523         if (phba->cfg_xri_rebalancing) {
1524                 /* Multi-XRI pools handler */
1525                 lpfc_hb_mxp_handler(phba);
1526         }
1527
1528         vports = lpfc_create_vport_work_array(phba);
1529         if (vports != NULL)
1530                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1531                         lpfc_rcv_seq_check_edtov(vports[i]);
1532                         lpfc_fdmi_change_check(vports[i]);
1533                 }
1534         lpfc_destroy_vport_work_array(phba, vports);
1535
1536         if ((phba->link_state == LPFC_HBA_ERROR) ||
1537                 (phba->pport->load_flag & FC_UNLOADING) ||
1538                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1539                 return;
1540
1541         if (phba->elsbuf_cnt &&
1542                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1543                 spin_lock_irq(&phba->hbalock);
1544                 list_splice_init(&phba->elsbuf, &completions);
1545                 phba->elsbuf_cnt = 0;
1546                 phba->elsbuf_prev_cnt = 0;
1547                 spin_unlock_irq(&phba->hbalock);
1548
1549                 while (!list_empty(&completions)) {
1550                         list_remove_head(&completions, buf_ptr,
1551                                 struct lpfc_dmabuf, list);
1552                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1553                         kfree(buf_ptr);
1554                 }
1555         }
1556         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1557
1558         /* If there is no heart beat outstanding, issue a heartbeat command */
1559         if (phba->cfg_enable_hba_heartbeat) {
1560                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1561                 spin_lock_irq(&phba->pport->work_port_lock);
1562                 if (time_after(phba->last_completion_time +
1563                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1564                                 jiffies)) {
1565                         spin_unlock_irq(&phba->pport->work_port_lock);
1566                         if (phba->hba_flag & HBA_HBEAT_INP)
1567                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1568                         else
1569                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1570                         goto out;
1571                 }
1572                 spin_unlock_irq(&phba->pport->work_port_lock);
1573
1574                 /* Check if a MBX_HEARTBEAT is already in progress */
1575                 if (phba->hba_flag & HBA_HBEAT_INP) {
1576                         /*
1577                          * If heart beat timeout called with HBA_HBEAT_INP set
1578                          * we need to give the hb mailbox cmd a chance to
1579                          * complete or TMO.
1580                          */
1581                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1582                                 "0459 Adapter heartbeat still outstanding: "
1583                                 "last compl time was %d ms.\n",
1584                                 jiffies_to_msecs(jiffies
1585                                          - phba->last_completion_time));
1586                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1587                 } else {
1588                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1589                                 (list_empty(&psli->mboxq))) {
1590
1591                                 retval = lpfc_issue_hb_mbox(phba);
1592                                 if (retval) {
1593                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1594                                         goto out;
1595                                 }
1596                                 phba->skipped_hb = 0;
1597                         } else if (time_before_eq(phba->last_completion_time,
1598                                         phba->skipped_hb)) {
1599                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1600                                         "2857 Last completion time not "
1601                                         " updated in %d ms\n",
1602                                         jiffies_to_msecs(jiffies
1603                                                  - phba->last_completion_time));
1604                         } else
1605                                 phba->skipped_hb = jiffies;
1606
1607                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1608                         goto out;
1609                 }
1610         } else {
1611                 /* Check to see if we want to force a MBX_HEARTBEAT */
1612                 if (phba->hba_flag & HBA_HBEAT_TMO) {
1613                         retval = lpfc_issue_hb_mbox(phba);
1614                         if (retval)
1615                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1616                         else
1617                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1618                         goto out;
1619                 }
1620                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1621         }
1622 out:
1623         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1624 }
1625
1626 /**
1627  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1628  * @phba: pointer to lpfc hba data structure.
1629  *
1630  * This routine is called to bring the HBA offline when HBA hardware error
1631  * other than Port Error 6 has been detected.
1632  **/
1633 static void
1634 lpfc_offline_eratt(struct lpfc_hba *phba)
1635 {
1636         struct lpfc_sli   *psli = &phba->sli;
1637
1638         spin_lock_irq(&phba->hbalock);
1639         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1640         spin_unlock_irq(&phba->hbalock);
1641         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1642
1643         lpfc_offline(phba);
1644         lpfc_reset_barrier(phba);
1645         spin_lock_irq(&phba->hbalock);
1646         lpfc_sli_brdreset(phba);
1647         spin_unlock_irq(&phba->hbalock);
1648         lpfc_hba_down_post(phba);
1649         lpfc_sli_brdready(phba, HS_MBRDY);
1650         lpfc_unblock_mgmt_io(phba);
1651         phba->link_state = LPFC_HBA_ERROR;
1652         return;
1653 }
1654
1655 /**
1656  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1657  * @phba: pointer to lpfc hba data structure.
1658  *
1659  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1660  * other than Port Error 6 has been detected.
1661  **/
1662 void
1663 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1664 {
1665         spin_lock_irq(&phba->hbalock);
1666         if (phba->link_state == LPFC_HBA_ERROR &&
1667                 test_bit(HBA_PCI_ERR, &phba->bit_flags)) {
1668                 spin_unlock_irq(&phba->hbalock);
1669                 return;
1670         }
1671         phba->link_state = LPFC_HBA_ERROR;
1672         spin_unlock_irq(&phba->hbalock);
1673
1674         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1675         lpfc_sli_flush_io_rings(phba);
1676         lpfc_offline(phba);
1677         lpfc_hba_down_post(phba);
1678         lpfc_unblock_mgmt_io(phba);
1679 }
1680
1681 /**
1682  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1683  * @phba: pointer to lpfc hba data structure.
1684  *
1685  * This routine is invoked to handle the deferred HBA hardware error
1686  * conditions. This type of error is indicated by HBA by setting ER1
1687  * and another ER bit in the host status register. The driver will
1688  * wait until the ER1 bit clears before handling the error condition.
1689  **/
1690 static void
1691 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1692 {
1693         uint32_t old_host_status = phba->work_hs;
1694         struct lpfc_sli *psli = &phba->sli;
1695
1696         /* If the pci channel is offline, ignore possible errors,
1697          * since we cannot communicate with the pci card anyway.
1698          */
1699         if (pci_channel_offline(phba->pcidev)) {
1700                 spin_lock_irq(&phba->hbalock);
1701                 phba->hba_flag &= ~DEFER_ERATT;
1702                 spin_unlock_irq(&phba->hbalock);
1703                 return;
1704         }
1705
1706         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1707                         "0479 Deferred Adapter Hardware Error "
1708                         "Data: x%x x%x x%x\n",
1709                         phba->work_hs, phba->work_status[0],
1710                         phba->work_status[1]);
1711
1712         spin_lock_irq(&phba->hbalock);
1713         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1714         spin_unlock_irq(&phba->hbalock);
1715
1716
1717         /*
1718          * Firmware stops when it triggred erratt. That could cause the I/Os
1719          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1720          * SCSI layer retry it after re-establishing link.
1721          */
1722         lpfc_sli_abort_fcp_rings(phba);
1723
1724         /*
1725          * There was a firmware error. Take the hba offline and then
1726          * attempt to restart it.
1727          */
1728         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1729         lpfc_offline(phba);
1730
1731         /* Wait for the ER1 bit to clear.*/
1732         while (phba->work_hs & HS_FFER1) {
1733                 msleep(100);
1734                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1735                         phba->work_hs = UNPLUG_ERR ;
1736                         break;
1737                 }
1738                 /* If driver is unloading let the worker thread continue */
1739                 if (phba->pport->load_flag & FC_UNLOADING) {
1740                         phba->work_hs = 0;
1741                         break;
1742                 }
1743         }
1744
1745         /*
1746          * This is to ptrotect against a race condition in which
1747          * first write to the host attention register clear the
1748          * host status register.
1749          */
1750         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1751                 phba->work_hs = old_host_status & ~HS_FFER1;
1752
1753         spin_lock_irq(&phba->hbalock);
1754         phba->hba_flag &= ~DEFER_ERATT;
1755         spin_unlock_irq(&phba->hbalock);
1756         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1757         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1758 }
1759
1760 static void
1761 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1762 {
1763         struct lpfc_board_event_header board_event;
1764         struct Scsi_Host *shost;
1765
1766         board_event.event_type = FC_REG_BOARD_EVENT;
1767         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1768         shost = lpfc_shost_from_vport(phba->pport);
1769         fc_host_post_vendor_event(shost, fc_get_event_number(),
1770                                   sizeof(board_event),
1771                                   (char *) &board_event,
1772                                   LPFC_NL_VENDOR_ID);
1773 }
1774
1775 /**
1776  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1777  * @phba: pointer to lpfc hba data structure.
1778  *
1779  * This routine is invoked to handle the following HBA hardware error
1780  * conditions:
1781  * 1 - HBA error attention interrupt
1782  * 2 - DMA ring index out of range
1783  * 3 - Mailbox command came back as unknown
1784  **/
1785 static void
1786 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1787 {
1788         struct lpfc_vport *vport = phba->pport;
1789         struct lpfc_sli   *psli = &phba->sli;
1790         uint32_t event_data;
1791         unsigned long temperature;
1792         struct temp_event temp_event_data;
1793         struct Scsi_Host  *shost;
1794
1795         /* If the pci channel is offline, ignore possible errors,
1796          * since we cannot communicate with the pci card anyway.
1797          */
1798         if (pci_channel_offline(phba->pcidev)) {
1799                 spin_lock_irq(&phba->hbalock);
1800                 phba->hba_flag &= ~DEFER_ERATT;
1801                 spin_unlock_irq(&phba->hbalock);
1802                 return;
1803         }
1804
1805         /* If resets are disabled then leave the HBA alone and return */
1806         if (!phba->cfg_enable_hba_reset)
1807                 return;
1808
1809         /* Send an internal error event to mgmt application */
1810         lpfc_board_errevt_to_mgmt(phba);
1811
1812         if (phba->hba_flag & DEFER_ERATT)
1813                 lpfc_handle_deferred_eratt(phba);
1814
1815         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1816                 if (phba->work_hs & HS_FFER6)
1817                         /* Re-establishing Link */
1818                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1819                                         "1301 Re-establishing Link "
1820                                         "Data: x%x x%x x%x\n",
1821                                         phba->work_hs, phba->work_status[0],
1822                                         phba->work_status[1]);
1823                 if (phba->work_hs & HS_FFER8)
1824                         /* Device Zeroization */
1825                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1826                                         "2861 Host Authentication device "
1827                                         "zeroization Data:x%x x%x x%x\n",
1828                                         phba->work_hs, phba->work_status[0],
1829                                         phba->work_status[1]);
1830
1831                 spin_lock_irq(&phba->hbalock);
1832                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1833                 spin_unlock_irq(&phba->hbalock);
1834
1835                 /*
1836                 * Firmware stops when it triggled erratt with HS_FFER6.
1837                 * That could cause the I/Os dropped by the firmware.
1838                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1839                 * retry it after re-establishing link.
1840                 */
1841                 lpfc_sli_abort_fcp_rings(phba);
1842
1843                 /*
1844                  * There was a firmware error.  Take the hba offline and then
1845                  * attempt to restart it.
1846                  */
1847                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1848                 lpfc_offline(phba);
1849                 lpfc_sli_brdrestart(phba);
1850                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1851                         lpfc_unblock_mgmt_io(phba);
1852                         return;
1853                 }
1854                 lpfc_unblock_mgmt_io(phba);
1855         } else if (phba->work_hs & HS_CRIT_TEMP) {
1856                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1857                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1858                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1859                 temp_event_data.data = (uint32_t)temperature;
1860
1861                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1862                                 "0406 Adapter maximum temperature exceeded "
1863                                 "(%ld), taking this port offline "
1864                                 "Data: x%x x%x x%x\n",
1865                                 temperature, phba->work_hs,
1866                                 phba->work_status[0], phba->work_status[1]);
1867
1868                 shost = lpfc_shost_from_vport(phba->pport);
1869                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1870                                           sizeof(temp_event_data),
1871                                           (char *) &temp_event_data,
1872                                           SCSI_NL_VID_TYPE_PCI
1873                                           | PCI_VENDOR_ID_EMULEX);
1874
1875                 spin_lock_irq(&phba->hbalock);
1876                 phba->over_temp_state = HBA_OVER_TEMP;
1877                 spin_unlock_irq(&phba->hbalock);
1878                 lpfc_offline_eratt(phba);
1879
1880         } else {
1881                 /* The if clause above forces this code path when the status
1882                  * failure is a value other than FFER6. Do not call the offline
1883                  * twice. This is the adapter hardware error path.
1884                  */
1885                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1886                                 "0457 Adapter Hardware Error "
1887                                 "Data: x%x x%x x%x\n",
1888                                 phba->work_hs,
1889                                 phba->work_status[0], phba->work_status[1]);
1890
1891                 event_data = FC_REG_DUMP_EVENT;
1892                 shost = lpfc_shost_from_vport(vport);
1893                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1894                                 sizeof(event_data), (char *) &event_data,
1895                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1896
1897                 lpfc_offline_eratt(phba);
1898         }
1899         return;
1900 }
1901
1902 /**
1903  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1904  * @phba: pointer to lpfc hba data structure.
1905  * @mbx_action: flag for mailbox shutdown action.
1906  * @en_rn_msg: send reset/port recovery message.
1907  * This routine is invoked to perform an SLI4 port PCI function reset in
1908  * response to port status register polling attention. It waits for port
1909  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1910  * During this process, interrupt vectors are freed and later requested
1911  * for handling possible port resource change.
1912  **/
1913 static int
1914 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1915                             bool en_rn_msg)
1916 {
1917         int rc;
1918         uint32_t intr_mode;
1919         LPFC_MBOXQ_t *mboxq;
1920
1921         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1922             LPFC_SLI_INTF_IF_TYPE_2) {
1923                 /*
1924                  * On error status condition, driver need to wait for port
1925                  * ready before performing reset.
1926                  */
1927                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1928                 if (rc)
1929                         return rc;
1930         }
1931
1932         /* need reset: attempt for port recovery */
1933         if (en_rn_msg)
1934                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1935                                 "2887 Reset Needed: Attempting Port "
1936                                 "Recovery...\n");
1937
1938         /* If we are no wait, the HBA has been reset and is not
1939          * functional, thus we should clear
1940          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1941          */
1942         if (mbx_action == LPFC_MBX_NO_WAIT) {
1943                 spin_lock_irq(&phba->hbalock);
1944                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1945                 if (phba->sli.mbox_active) {
1946                         mboxq = phba->sli.mbox_active;
1947                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1948                         __lpfc_mbox_cmpl_put(phba, mboxq);
1949                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1950                         phba->sli.mbox_active = NULL;
1951                 }
1952                 spin_unlock_irq(&phba->hbalock);
1953         }
1954
1955         lpfc_offline_prep(phba, mbx_action);
1956         lpfc_sli_flush_io_rings(phba);
1957         lpfc_offline(phba);
1958         /* release interrupt for possible resource change */
1959         lpfc_sli4_disable_intr(phba);
1960         rc = lpfc_sli_brdrestart(phba);
1961         if (rc) {
1962                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1963                                 "6309 Failed to restart board\n");
1964                 return rc;
1965         }
1966         /* request and enable interrupt */
1967         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1968         if (intr_mode == LPFC_INTR_ERROR) {
1969                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1970                                 "3175 Failed to enable interrupt\n");
1971                 return -EIO;
1972         }
1973         phba->intr_mode = intr_mode;
1974         rc = lpfc_online(phba);
1975         if (rc == 0)
1976                 lpfc_unblock_mgmt_io(phba);
1977
1978         return rc;
1979 }
1980
1981 /**
1982  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1983  * @phba: pointer to lpfc hba data structure.
1984  *
1985  * This routine is invoked to handle the SLI4 HBA hardware error attention
1986  * conditions.
1987  **/
1988 static void
1989 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1990 {
1991         struct lpfc_vport *vport = phba->pport;
1992         uint32_t event_data;
1993         struct Scsi_Host *shost;
1994         uint32_t if_type;
1995         struct lpfc_register portstat_reg = {0};
1996         uint32_t reg_err1, reg_err2;
1997         uint32_t uerrlo_reg, uemasklo_reg;
1998         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1999         bool en_rn_msg = true;
2000         struct temp_event temp_event_data;
2001         struct lpfc_register portsmphr_reg;
2002         int rc, i;
2003
2004         /* If the pci channel is offline, ignore possible errors, since
2005          * we cannot communicate with the pci card anyway.
2006          */
2007         if (pci_channel_offline(phba->pcidev)) {
2008                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2009                                 "3166 pci channel is offline\n");
2010                 lpfc_sli_flush_io_rings(phba);
2011                 return;
2012         }
2013
2014         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
2015         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2016         switch (if_type) {
2017         case LPFC_SLI_INTF_IF_TYPE_0:
2018                 pci_rd_rc1 = lpfc_readl(
2019                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
2020                                 &uerrlo_reg);
2021                 pci_rd_rc2 = lpfc_readl(
2022                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
2023                                 &uemasklo_reg);
2024                 /* consider PCI bus read error as pci_channel_offline */
2025                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
2026                         return;
2027                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
2028                         lpfc_sli4_offline_eratt(phba);
2029                         return;
2030                 }
2031                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2032                                 "7623 Checking UE recoverable");
2033
2034                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
2035                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2036                                        &portsmphr_reg.word0))
2037                                 continue;
2038
2039                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
2040                                                    &portsmphr_reg);
2041                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2042                             LPFC_PORT_SEM_UE_RECOVERABLE)
2043                                 break;
2044                         /*Sleep for 1Sec, before checking SEMAPHORE */
2045                         msleep(1000);
2046                 }
2047
2048                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2049                                 "4827 smphr_port_status x%x : Waited %dSec",
2050                                 smphr_port_status, i);
2051
2052                 /* Recoverable UE, reset the HBA device */
2053                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2054                     LPFC_PORT_SEM_UE_RECOVERABLE) {
2055                         for (i = 0; i < 20; i++) {
2056                                 msleep(1000);
2057                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2058                                     &portsmphr_reg.word0) &&
2059                                     (LPFC_POST_STAGE_PORT_READY ==
2060                                      bf_get(lpfc_port_smphr_port_status,
2061                                      &portsmphr_reg))) {
2062                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2063                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2064                                         if (rc == 0)
2065                                                 return;
2066                                         lpfc_printf_log(phba, KERN_ERR,
2067                                                 LOG_TRACE_EVENT,
2068                                                 "4215 Failed to recover UE");
2069                                         break;
2070                                 }
2071                         }
2072                 }
2073                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2074                                 "7624 Firmware not ready: Failing UE recovery,"
2075                                 " waited %dSec", i);
2076                 phba->link_state = LPFC_HBA_ERROR;
2077                 break;
2078
2079         case LPFC_SLI_INTF_IF_TYPE_2:
2080         case LPFC_SLI_INTF_IF_TYPE_6:
2081                 pci_rd_rc1 = lpfc_readl(
2082                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2083                                 &portstat_reg.word0);
2084                 /* consider PCI bus read error as pci_channel_offline */
2085                 if (pci_rd_rc1 == -EIO) {
2086                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2087                                 "3151 PCI bus read access failure: x%x\n",
2088                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2089                         lpfc_sli4_offline_eratt(phba);
2090                         return;
2091                 }
2092                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2093                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2094                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2095                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2096                                         "2889 Port Overtemperature event, "
2097                                         "taking port offline Data: x%x x%x\n",
2098                                         reg_err1, reg_err2);
2099
2100                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2101                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2102                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2103                         temp_event_data.data = 0xFFFFFFFF;
2104
2105                         shost = lpfc_shost_from_vport(phba->pport);
2106                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2107                                                   sizeof(temp_event_data),
2108                                                   (char *)&temp_event_data,
2109                                                   SCSI_NL_VID_TYPE_PCI
2110                                                   | PCI_VENDOR_ID_EMULEX);
2111
2112                         spin_lock_irq(&phba->hbalock);
2113                         phba->over_temp_state = HBA_OVER_TEMP;
2114                         spin_unlock_irq(&phba->hbalock);
2115                         lpfc_sli4_offline_eratt(phba);
2116                         return;
2117                 }
2118                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2119                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2120                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2121                                         "3143 Port Down: Firmware Update "
2122                                         "Detected\n");
2123                         en_rn_msg = false;
2124                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2125                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2126                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2127                                         "3144 Port Down: Debug Dump\n");
2128                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2129                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2130                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2131                                         "3145 Port Down: Provisioning\n");
2132
2133                 /* If resets are disabled then leave the HBA alone and return */
2134                 if (!phba->cfg_enable_hba_reset)
2135                         return;
2136
2137                 /* Check port status register for function reset */
2138                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2139                                 en_rn_msg);
2140                 if (rc == 0) {
2141                         /* don't report event on forced debug dump */
2142                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2143                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2144                                 return;
2145                         else
2146                                 break;
2147                 }
2148                 /* fall through for not able to recover */
2149                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2150                                 "3152 Unrecoverable error\n");
2151                 phba->link_state = LPFC_HBA_ERROR;
2152                 break;
2153         case LPFC_SLI_INTF_IF_TYPE_1:
2154         default:
2155                 break;
2156         }
2157         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2158                         "3123 Report dump event to upper layer\n");
2159         /* Send an internal error event to mgmt application */
2160         lpfc_board_errevt_to_mgmt(phba);
2161
2162         event_data = FC_REG_DUMP_EVENT;
2163         shost = lpfc_shost_from_vport(vport);
2164         fc_host_post_vendor_event(shost, fc_get_event_number(),
2165                                   sizeof(event_data), (char *) &event_data,
2166                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2167 }
2168
2169 /**
2170  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2171  * @phba: pointer to lpfc HBA data structure.
2172  *
2173  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2174  * routine from the API jump table function pointer from the lpfc_hba struct.
2175  *
2176  * Return codes
2177  *   0 - success.
2178  *   Any other value - error.
2179  **/
2180 void
2181 lpfc_handle_eratt(struct lpfc_hba *phba)
2182 {
2183         (*phba->lpfc_handle_eratt)(phba);
2184 }
2185
2186 /**
2187  * lpfc_handle_latt - The HBA link event handler
2188  * @phba: pointer to lpfc hba data structure.
2189  *
2190  * This routine is invoked from the worker thread to handle a HBA host
2191  * attention link event. SLI3 only.
2192  **/
2193 void
2194 lpfc_handle_latt(struct lpfc_hba *phba)
2195 {
2196         struct lpfc_vport *vport = phba->pport;
2197         struct lpfc_sli   *psli = &phba->sli;
2198         LPFC_MBOXQ_t *pmb;
2199         volatile uint32_t control;
2200         int rc = 0;
2201
2202         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2203         if (!pmb) {
2204                 rc = 1;
2205                 goto lpfc_handle_latt_err_exit;
2206         }
2207
2208         rc = lpfc_mbox_rsrc_prep(phba, pmb);
2209         if (rc) {
2210                 rc = 2;
2211                 mempool_free(pmb, phba->mbox_mem_pool);
2212                 goto lpfc_handle_latt_err_exit;
2213         }
2214
2215         /* Cleanup any outstanding ELS commands */
2216         lpfc_els_flush_all_cmd(phba);
2217         psli->slistat.link_event++;
2218         lpfc_read_topology(phba, pmb, (struct lpfc_dmabuf *)pmb->ctx_buf);
2219         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2220         pmb->vport = vport;
2221         /* Block ELS IOCBs until we have processed this mbox command */
2222         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2223         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2224         if (rc == MBX_NOT_FINISHED) {
2225                 rc = 4;
2226                 goto lpfc_handle_latt_free_mbuf;
2227         }
2228
2229         /* Clear Link Attention in HA REG */
2230         spin_lock_irq(&phba->hbalock);
2231         writel(HA_LATT, phba->HAregaddr);
2232         readl(phba->HAregaddr); /* flush */
2233         spin_unlock_irq(&phba->hbalock);
2234
2235         return;
2236
2237 lpfc_handle_latt_free_mbuf:
2238         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2239         lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
2240 lpfc_handle_latt_err_exit:
2241         /* Enable Link attention interrupts */
2242         spin_lock_irq(&phba->hbalock);
2243         psli->sli_flag |= LPFC_PROCESS_LA;
2244         control = readl(phba->HCregaddr);
2245         control |= HC_LAINT_ENA;
2246         writel(control, phba->HCregaddr);
2247         readl(phba->HCregaddr); /* flush */
2248
2249         /* Clear Link Attention in HA REG */
2250         writel(HA_LATT, phba->HAregaddr);
2251         readl(phba->HAregaddr); /* flush */
2252         spin_unlock_irq(&phba->hbalock);
2253         lpfc_linkdown(phba);
2254         phba->link_state = LPFC_HBA_ERROR;
2255
2256         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2257                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2258
2259         return;
2260 }
2261
2262 static void
2263 lpfc_fill_vpd(struct lpfc_hba *phba, uint8_t *vpd, int length, int *pindex)
2264 {
2265         int i, j;
2266
2267         while (length > 0) {
2268                 /* Look for Serial Number */
2269                 if ((vpd[*pindex] == 'S') && (vpd[*pindex + 1] == 'N')) {
2270                         *pindex += 2;
2271                         i = vpd[*pindex];
2272                         *pindex += 1;
2273                         j = 0;
2274                         length -= (3+i);
2275                         while (i--) {
2276                                 phba->SerialNumber[j++] = vpd[(*pindex)++];
2277                                 if (j == 31)
2278                                         break;
2279                         }
2280                         phba->SerialNumber[j] = 0;
2281                         continue;
2282                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '1')) {
2283                         phba->vpd_flag |= VPD_MODEL_DESC;
2284                         *pindex += 2;
2285                         i = vpd[*pindex];
2286                         *pindex += 1;
2287                         j = 0;
2288                         length -= (3+i);
2289                         while (i--) {
2290                                 phba->ModelDesc[j++] = vpd[(*pindex)++];
2291                                 if (j == 255)
2292                                         break;
2293                         }
2294                         phba->ModelDesc[j] = 0;
2295                         continue;
2296                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '2')) {
2297                         phba->vpd_flag |= VPD_MODEL_NAME;
2298                         *pindex += 2;
2299                         i = vpd[*pindex];
2300                         *pindex += 1;
2301                         j = 0;
2302                         length -= (3+i);
2303                         while (i--) {
2304                                 phba->ModelName[j++] = vpd[(*pindex)++];
2305                                 if (j == 79)
2306                                         break;
2307                         }
2308                         phba->ModelName[j] = 0;
2309                         continue;
2310                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '3')) {
2311                         phba->vpd_flag |= VPD_PROGRAM_TYPE;
2312                         *pindex += 2;
2313                         i = vpd[*pindex];
2314                         *pindex += 1;
2315                         j = 0;
2316                         length -= (3+i);
2317                         while (i--) {
2318                                 phba->ProgramType[j++] = vpd[(*pindex)++];
2319                                 if (j == 255)
2320                                         break;
2321                         }
2322                         phba->ProgramType[j] = 0;
2323                         continue;
2324                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '4')) {
2325                         phba->vpd_flag |= VPD_PORT;
2326                         *pindex += 2;
2327                         i = vpd[*pindex];
2328                         *pindex += 1;
2329                         j = 0;
2330                         length -= (3 + i);
2331                         while (i--) {
2332                                 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2333                                     (phba->sli4_hba.pport_name_sta ==
2334                                      LPFC_SLI4_PPNAME_GET)) {
2335                                         j++;
2336                                         (*pindex)++;
2337                                 } else
2338                                         phba->Port[j++] = vpd[(*pindex)++];
2339                                 if (j == 19)
2340                                         break;
2341                         }
2342                         if ((phba->sli_rev != LPFC_SLI_REV4) ||
2343                             (phba->sli4_hba.pport_name_sta ==
2344                              LPFC_SLI4_PPNAME_NON))
2345                                 phba->Port[j] = 0;
2346                         continue;
2347                 } else {
2348                         *pindex += 2;
2349                         i = vpd[*pindex];
2350                         *pindex += 1;
2351                         *pindex += i;
2352                         length -= (3 + i);
2353                 }
2354         }
2355 }
2356
2357 /**
2358  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2359  * @phba: pointer to lpfc hba data structure.
2360  * @vpd: pointer to the vital product data.
2361  * @len: length of the vital product data in bytes.
2362  *
2363  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2364  * an array of characters. In this routine, the ModelName, ProgramType, and
2365  * ModelDesc, etc. fields of the phba data structure will be populated.
2366  *
2367  * Return codes
2368  *   0 - pointer to the VPD passed in is NULL
2369  *   1 - success
2370  **/
2371 int
2372 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2373 {
2374         uint8_t lenlo, lenhi;
2375         int Length;
2376         int i;
2377         int finished = 0;
2378         int index = 0;
2379
2380         if (!vpd)
2381                 return 0;
2382
2383         /* Vital Product */
2384         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2385                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2386                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2387                         (uint32_t) vpd[3]);
2388         while (!finished && (index < (len - 4))) {
2389                 switch (vpd[index]) {
2390                 case 0x82:
2391                 case 0x91:
2392                         index += 1;
2393                         lenlo = vpd[index];
2394                         index += 1;
2395                         lenhi = vpd[index];
2396                         index += 1;
2397                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2398                         index += i;
2399                         break;
2400                 case 0x90:
2401                         index += 1;
2402                         lenlo = vpd[index];
2403                         index += 1;
2404                         lenhi = vpd[index];
2405                         index += 1;
2406                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2407                         if (Length > len - index)
2408                                 Length = len - index;
2409
2410                         lpfc_fill_vpd(phba, vpd, Length, &index);
2411                         finished = 0;
2412                         break;
2413                 case 0x78:
2414                         finished = 1;
2415                         break;
2416                 default:
2417                         index ++;
2418                         break;
2419                 }
2420         }
2421
2422         return(1);
2423 }
2424
2425 /**
2426  * lpfc_get_atto_model_desc - Retrieve ATTO HBA device model name and description
2427  * @phba: pointer to lpfc hba data structure.
2428  * @mdp: pointer to the data structure to hold the derived model name.
2429  * @descp: pointer to the data structure to hold the derived description.
2430  *
2431  * This routine retrieves HBA's description based on its registered PCI device
2432  * ID. The @descp passed into this function points to an array of 256 chars. It
2433  * shall be returned with the model name, maximum speed, and the host bus type.
2434  * The @mdp passed into this function points to an array of 80 chars. When the
2435  * function returns, the @mdp will be filled with the model name.
2436  **/
2437 static void
2438 lpfc_get_atto_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2439 {
2440         uint16_t sub_dev_id = phba->pcidev->subsystem_device;
2441         char *model = "<Unknown>";
2442         int tbolt = 0;
2443
2444         switch (sub_dev_id) {
2445         case PCI_DEVICE_ID_CLRY_161E:
2446                 model = "161E";
2447                 break;
2448         case PCI_DEVICE_ID_CLRY_162E:
2449                 model = "162E";
2450                 break;
2451         case PCI_DEVICE_ID_CLRY_164E:
2452                 model = "164E";
2453                 break;
2454         case PCI_DEVICE_ID_CLRY_161P:
2455                 model = "161P";
2456                 break;
2457         case PCI_DEVICE_ID_CLRY_162P:
2458                 model = "162P";
2459                 break;
2460         case PCI_DEVICE_ID_CLRY_164P:
2461                 model = "164P";
2462                 break;
2463         case PCI_DEVICE_ID_CLRY_321E:
2464                 model = "321E";
2465                 break;
2466         case PCI_DEVICE_ID_CLRY_322E:
2467                 model = "322E";
2468                 break;
2469         case PCI_DEVICE_ID_CLRY_324E:
2470                 model = "324E";
2471                 break;
2472         case PCI_DEVICE_ID_CLRY_321P:
2473                 model = "321P";
2474                 break;
2475         case PCI_DEVICE_ID_CLRY_322P:
2476                 model = "322P";
2477                 break;
2478         case PCI_DEVICE_ID_CLRY_324P:
2479                 model = "324P";
2480                 break;
2481         case PCI_DEVICE_ID_TLFC_2XX2:
2482                 model = "2XX2";
2483                 tbolt = 1;
2484                 break;
2485         case PCI_DEVICE_ID_TLFC_3162:
2486                 model = "3162";
2487                 tbolt = 1;
2488                 break;
2489         case PCI_DEVICE_ID_TLFC_3322:
2490                 model = "3322";
2491                 tbolt = 1;
2492                 break;
2493         default:
2494                 model = "Unknown";
2495                 break;
2496         }
2497
2498         if (mdp && mdp[0] == '\0')
2499                 snprintf(mdp, 79, "%s", model);
2500
2501         if (descp && descp[0] == '\0')
2502                 snprintf(descp, 255,
2503                          "ATTO %s%s, Fibre Channel Adapter Initiator, Port %s",
2504                          (tbolt) ? "ThunderLink FC " : "Celerity FC-",
2505                          model,
2506                          phba->Port);
2507 }
2508
2509 /**
2510  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2511  * @phba: pointer to lpfc hba data structure.
2512  * @mdp: pointer to the data structure to hold the derived model name.
2513  * @descp: pointer to the data structure to hold the derived description.
2514  *
2515  * This routine retrieves HBA's description based on its registered PCI device
2516  * ID. The @descp passed into this function points to an array of 256 chars. It
2517  * shall be returned with the model name, maximum speed, and the host bus type.
2518  * The @mdp passed into this function points to an array of 80 chars. When the
2519  * function returns, the @mdp will be filled with the model name.
2520  **/
2521 static void
2522 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2523 {
2524         lpfc_vpd_t *vp;
2525         uint16_t dev_id = phba->pcidev->device;
2526         int max_speed;
2527         int GE = 0;
2528         int oneConnect = 0; /* default is not a oneConnect */
2529         struct {
2530                 char *name;
2531                 char *bus;
2532                 char *function;
2533         } m = {"<Unknown>", "", ""};
2534
2535         if (mdp && mdp[0] != '\0'
2536                 && descp && descp[0] != '\0')
2537                 return;
2538
2539         if (phba->pcidev->vendor == PCI_VENDOR_ID_ATTO) {
2540                 lpfc_get_atto_model_desc(phba, mdp, descp);
2541                 return;
2542         }
2543
2544         if (phba->lmt & LMT_64Gb)
2545                 max_speed = 64;
2546         else if (phba->lmt & LMT_32Gb)
2547                 max_speed = 32;
2548         else if (phba->lmt & LMT_16Gb)
2549                 max_speed = 16;
2550         else if (phba->lmt & LMT_10Gb)
2551                 max_speed = 10;
2552         else if (phba->lmt & LMT_8Gb)
2553                 max_speed = 8;
2554         else if (phba->lmt & LMT_4Gb)
2555                 max_speed = 4;
2556         else if (phba->lmt & LMT_2Gb)
2557                 max_speed = 2;
2558         else if (phba->lmt & LMT_1Gb)
2559                 max_speed = 1;
2560         else
2561                 max_speed = 0;
2562
2563         vp = &phba->vpd;
2564
2565         switch (dev_id) {
2566         case PCI_DEVICE_ID_FIREFLY:
2567                 m = (typeof(m)){"LP6000", "PCI",
2568                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2569                 break;
2570         case PCI_DEVICE_ID_SUPERFLY:
2571                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2572                         m = (typeof(m)){"LP7000", "PCI", ""};
2573                 else
2574                         m = (typeof(m)){"LP7000E", "PCI", ""};
2575                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2576                 break;
2577         case PCI_DEVICE_ID_DRAGONFLY:
2578                 m = (typeof(m)){"LP8000", "PCI",
2579                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2580                 break;
2581         case PCI_DEVICE_ID_CENTAUR:
2582                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2583                         m = (typeof(m)){"LP9002", "PCI", ""};
2584                 else
2585                         m = (typeof(m)){"LP9000", "PCI", ""};
2586                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2587                 break;
2588         case PCI_DEVICE_ID_RFLY:
2589                 m = (typeof(m)){"LP952", "PCI",
2590                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2591                 break;
2592         case PCI_DEVICE_ID_PEGASUS:
2593                 m = (typeof(m)){"LP9802", "PCI-X",
2594                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2595                 break;
2596         case PCI_DEVICE_ID_THOR:
2597                 m = (typeof(m)){"LP10000", "PCI-X",
2598                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2599                 break;
2600         case PCI_DEVICE_ID_VIPER:
2601                 m = (typeof(m)){"LPX1000",  "PCI-X",
2602                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2603                 break;
2604         case PCI_DEVICE_ID_PFLY:
2605                 m = (typeof(m)){"LP982", "PCI-X",
2606                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2607                 break;
2608         case PCI_DEVICE_ID_TFLY:
2609                 m = (typeof(m)){"LP1050", "PCI-X",
2610                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2611                 break;
2612         case PCI_DEVICE_ID_HELIOS:
2613                 m = (typeof(m)){"LP11000", "PCI-X2",
2614                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2615                 break;
2616         case PCI_DEVICE_ID_HELIOS_SCSP:
2617                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2618                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2619                 break;
2620         case PCI_DEVICE_ID_HELIOS_DCSP:
2621                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2622                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2623                 break;
2624         case PCI_DEVICE_ID_NEPTUNE:
2625                 m = (typeof(m)){"LPe1000", "PCIe",
2626                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2627                 break;
2628         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2629                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2630                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2631                 break;
2632         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2633                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2634                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2635                 break;
2636         case PCI_DEVICE_ID_BMID:
2637                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2638                 break;
2639         case PCI_DEVICE_ID_BSMB:
2640                 m = (typeof(m)){"LP111", "PCI-X2",
2641                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2642                 break;
2643         case PCI_DEVICE_ID_ZEPHYR:
2644                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2645                 break;
2646         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2647                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2648                 break;
2649         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2650                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2651                 GE = 1;
2652                 break;
2653         case PCI_DEVICE_ID_ZMID:
2654                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2655                 break;
2656         case PCI_DEVICE_ID_ZSMB:
2657                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2658                 break;
2659         case PCI_DEVICE_ID_LP101:
2660                 m = (typeof(m)){"LP101", "PCI-X",
2661                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2662                 break;
2663         case PCI_DEVICE_ID_LP10000S:
2664                 m = (typeof(m)){"LP10000-S", "PCI",
2665                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2666                 break;
2667         case PCI_DEVICE_ID_LP11000S:
2668                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2669                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2670                 break;
2671         case PCI_DEVICE_ID_LPE11000S:
2672                 m = (typeof(m)){"LPe11000-S", "PCIe",
2673                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2674                 break;
2675         case PCI_DEVICE_ID_SAT:
2676                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2677                 break;
2678         case PCI_DEVICE_ID_SAT_MID:
2679                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2680                 break;
2681         case PCI_DEVICE_ID_SAT_SMB:
2682                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2683                 break;
2684         case PCI_DEVICE_ID_SAT_DCSP:
2685                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2686                 break;
2687         case PCI_DEVICE_ID_SAT_SCSP:
2688                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2689                 break;
2690         case PCI_DEVICE_ID_SAT_S:
2691                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2692                 break;
2693         case PCI_DEVICE_ID_PROTEUS_VF:
2694                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2695                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2696                 break;
2697         case PCI_DEVICE_ID_PROTEUS_PF:
2698                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2699                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2700                 break;
2701         case PCI_DEVICE_ID_PROTEUS_S:
2702                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2703                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2704                 break;
2705         case PCI_DEVICE_ID_TIGERSHARK:
2706                 oneConnect = 1;
2707                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2708                 break;
2709         case PCI_DEVICE_ID_TOMCAT:
2710                 oneConnect = 1;
2711                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2712                 break;
2713         case PCI_DEVICE_ID_FALCON:
2714                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2715                                 "EmulexSecure Fibre"};
2716                 break;
2717         case PCI_DEVICE_ID_BALIUS:
2718                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2719                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2720                 break;
2721         case PCI_DEVICE_ID_LANCER_FC:
2722                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2723                 break;
2724         case PCI_DEVICE_ID_LANCER_FC_VF:
2725                 m = (typeof(m)){"LPe16000", "PCIe",
2726                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2727                 break;
2728         case PCI_DEVICE_ID_LANCER_FCOE:
2729                 oneConnect = 1;
2730                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2731                 break;
2732         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2733                 oneConnect = 1;
2734                 m = (typeof(m)){"OCe15100", "PCIe",
2735                                 "Obsolete, Unsupported FCoE"};
2736                 break;
2737         case PCI_DEVICE_ID_LANCER_G6_FC:
2738                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2739                 break;
2740         case PCI_DEVICE_ID_LANCER_G7_FC:
2741                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2742                 break;
2743         case PCI_DEVICE_ID_LANCER_G7P_FC:
2744                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2745                 break;
2746         case PCI_DEVICE_ID_SKYHAWK:
2747         case PCI_DEVICE_ID_SKYHAWK_VF:
2748                 oneConnect = 1;
2749                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2750                 break;
2751         default:
2752                 m = (typeof(m)){"Unknown", "", ""};
2753                 break;
2754         }
2755
2756         if (mdp && mdp[0] == '\0')
2757                 snprintf(mdp, 79,"%s", m.name);
2758         /*
2759          * oneConnect hba requires special processing, they are all initiators
2760          * and we put the port number on the end
2761          */
2762         if (descp && descp[0] == '\0') {
2763                 if (oneConnect)
2764                         snprintf(descp, 255,
2765                                 "Emulex OneConnect %s, %s Initiator %s",
2766                                 m.name, m.function,
2767                                 phba->Port);
2768                 else if (max_speed == 0)
2769                         snprintf(descp, 255,
2770                                 "Emulex %s %s %s",
2771                                 m.name, m.bus, m.function);
2772                 else
2773                         snprintf(descp, 255,
2774                                 "Emulex %s %d%s %s %s",
2775                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2776                                 m.bus, m.function);
2777         }
2778 }
2779
2780 /**
2781  * lpfc_sli3_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2782  * @phba: pointer to lpfc hba data structure.
2783  * @pring: pointer to a IOCB ring.
2784  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2785  *
2786  * This routine posts a given number of IOCBs with the associated DMA buffer
2787  * descriptors specified by the cnt argument to the given IOCB ring.
2788  *
2789  * Return codes
2790  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2791  **/
2792 int
2793 lpfc_sli3_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2794 {
2795         IOCB_t *icmd;
2796         struct lpfc_iocbq *iocb;
2797         struct lpfc_dmabuf *mp1, *mp2;
2798
2799         cnt += pring->missbufcnt;
2800
2801         /* While there are buffers to post */
2802         while (cnt > 0) {
2803                 /* Allocate buffer for  command iocb */
2804                 iocb = lpfc_sli_get_iocbq(phba);
2805                 if (iocb == NULL) {
2806                         pring->missbufcnt = cnt;
2807                         return cnt;
2808                 }
2809                 icmd = &iocb->iocb;
2810
2811                 /* 2 buffers can be posted per command */
2812                 /* Allocate buffer to post */
2813                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2814                 if (mp1)
2815                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2816                 if (!mp1 || !mp1->virt) {
2817                         kfree(mp1);
2818                         lpfc_sli_release_iocbq(phba, iocb);
2819                         pring->missbufcnt = cnt;
2820                         return cnt;
2821                 }
2822
2823                 INIT_LIST_HEAD(&mp1->list);
2824                 /* Allocate buffer to post */
2825                 if (cnt > 1) {
2826                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2827                         if (mp2)
2828                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2829                                                             &mp2->phys);
2830                         if (!mp2 || !mp2->virt) {
2831                                 kfree(mp2);
2832                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2833                                 kfree(mp1);
2834                                 lpfc_sli_release_iocbq(phba, iocb);
2835                                 pring->missbufcnt = cnt;
2836                                 return cnt;
2837                         }
2838
2839                         INIT_LIST_HEAD(&mp2->list);
2840                 } else {
2841                         mp2 = NULL;
2842                 }
2843
2844                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2845                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2846                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2847                 icmd->ulpBdeCount = 1;
2848                 cnt--;
2849                 if (mp2) {
2850                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2851                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2852                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2853                         cnt--;
2854                         icmd->ulpBdeCount = 2;
2855                 }
2856
2857                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2858                 icmd->ulpLe = 1;
2859
2860                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2861                     IOCB_ERROR) {
2862                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2863                         kfree(mp1);
2864                         cnt++;
2865                         if (mp2) {
2866                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2867                                 kfree(mp2);
2868                                 cnt++;
2869                         }
2870                         lpfc_sli_release_iocbq(phba, iocb);
2871                         pring->missbufcnt = cnt;
2872                         return cnt;
2873                 }
2874                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2875                 if (mp2)
2876                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2877         }
2878         pring->missbufcnt = 0;
2879         return 0;
2880 }
2881
2882 /**
2883  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2884  * @phba: pointer to lpfc hba data structure.
2885  *
2886  * This routine posts initial receive IOCB buffers to the ELS ring. The
2887  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2888  * set to 64 IOCBs. SLI3 only.
2889  *
2890  * Return codes
2891  *   0 - success (currently always success)
2892  **/
2893 static int
2894 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2895 {
2896         struct lpfc_sli *psli = &phba->sli;
2897
2898         /* Ring 0, ELS / CT buffers */
2899         lpfc_sli3_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2900         /* Ring 2 - FCP no buffers needed */
2901
2902         return 0;
2903 }
2904
2905 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2906
2907 /**
2908  * lpfc_sha_init - Set up initial array of hash table entries
2909  * @HashResultPointer: pointer to an array as hash table.
2910  *
2911  * This routine sets up the initial values to the array of hash table entries
2912  * for the LC HBAs.
2913  **/
2914 static void
2915 lpfc_sha_init(uint32_t * HashResultPointer)
2916 {
2917         HashResultPointer[0] = 0x67452301;
2918         HashResultPointer[1] = 0xEFCDAB89;
2919         HashResultPointer[2] = 0x98BADCFE;
2920         HashResultPointer[3] = 0x10325476;
2921         HashResultPointer[4] = 0xC3D2E1F0;
2922 }
2923
2924 /**
2925  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2926  * @HashResultPointer: pointer to an initial/result hash table.
2927  * @HashWorkingPointer: pointer to an working hash table.
2928  *
2929  * This routine iterates an initial hash table pointed by @HashResultPointer
2930  * with the values from the working hash table pointeed by @HashWorkingPointer.
2931  * The results are putting back to the initial hash table, returned through
2932  * the @HashResultPointer as the result hash table.
2933  **/
2934 static void
2935 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2936 {
2937         int t;
2938         uint32_t TEMP;
2939         uint32_t A, B, C, D, E;
2940         t = 16;
2941         do {
2942                 HashWorkingPointer[t] =
2943                     S(1,
2944                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2945                                                                      8] ^
2946                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2947         } while (++t <= 79);
2948         t = 0;
2949         A = HashResultPointer[0];
2950         B = HashResultPointer[1];
2951         C = HashResultPointer[2];
2952         D = HashResultPointer[3];
2953         E = HashResultPointer[4];
2954
2955         do {
2956                 if (t < 20) {
2957                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2958                 } else if (t < 40) {
2959                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2960                 } else if (t < 60) {
2961                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2962                 } else {
2963                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2964                 }
2965                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2966                 E = D;
2967                 D = C;
2968                 C = S(30, B);
2969                 B = A;
2970                 A = TEMP;
2971         } while (++t <= 79);
2972
2973         HashResultPointer[0] += A;
2974         HashResultPointer[1] += B;
2975         HashResultPointer[2] += C;
2976         HashResultPointer[3] += D;
2977         HashResultPointer[4] += E;
2978
2979 }
2980
2981 /**
2982  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2983  * @RandomChallenge: pointer to the entry of host challenge random number array.
2984  * @HashWorking: pointer to the entry of the working hash array.
2985  *
2986  * This routine calculates the working hash array referred by @HashWorking
2987  * from the challenge random numbers associated with the host, referred by
2988  * @RandomChallenge. The result is put into the entry of the working hash
2989  * array and returned by reference through @HashWorking.
2990  **/
2991 static void
2992 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2993 {
2994         *HashWorking = (*RandomChallenge ^ *HashWorking);
2995 }
2996
2997 /**
2998  * lpfc_hba_init - Perform special handling for LC HBA initialization
2999  * @phba: pointer to lpfc hba data structure.
3000  * @hbainit: pointer to an array of unsigned 32-bit integers.
3001  *
3002  * This routine performs the special handling for LC HBA initialization.
3003  **/
3004 void
3005 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
3006 {
3007         int t;
3008         uint32_t *HashWorking;
3009         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
3010
3011         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
3012         if (!HashWorking)
3013                 return;
3014
3015         HashWorking[0] = HashWorking[78] = *pwwnn++;
3016         HashWorking[1] = HashWorking[79] = *pwwnn;
3017
3018         for (t = 0; t < 7; t++)
3019                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
3020
3021         lpfc_sha_init(hbainit);
3022         lpfc_sha_iterate(hbainit, HashWorking);
3023         kfree(HashWorking);
3024 }
3025
3026 /**
3027  * lpfc_cleanup - Performs vport cleanups before deleting a vport
3028  * @vport: pointer to a virtual N_Port data structure.
3029  *
3030  * This routine performs the necessary cleanups before deleting the @vport.
3031  * It invokes the discovery state machine to perform necessary state
3032  * transitions and to release the ndlps associated with the @vport. Note,
3033  * the physical port is treated as @vport 0.
3034  **/
3035 void
3036 lpfc_cleanup(struct lpfc_vport *vport)
3037 {
3038         struct lpfc_hba   *phba = vport->phba;
3039         struct lpfc_nodelist *ndlp, *next_ndlp;
3040         int i = 0;
3041
3042         if (phba->link_state > LPFC_LINK_DOWN)
3043                 lpfc_port_link_failure(vport);
3044
3045         /* Clean up VMID resources */
3046         if (lpfc_is_vmid_enabled(phba))
3047                 lpfc_vmid_vport_cleanup(vport);
3048
3049         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3050                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
3051                     ndlp->nlp_DID == Fabric_DID) {
3052                         /* Just free up ndlp with Fabric_DID for vports */
3053                         lpfc_nlp_put(ndlp);
3054                         continue;
3055                 }
3056
3057                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
3058                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3059                         lpfc_nlp_put(ndlp);
3060                         continue;
3061                 }
3062
3063                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
3064                  * DEVICE_RM event.
3065                  */
3066                 if (ndlp->nlp_type & NLP_FABRIC &&
3067                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
3068                         lpfc_disc_state_machine(vport, ndlp, NULL,
3069                                         NLP_EVT_DEVICE_RECOVERY);
3070
3071                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
3072                         lpfc_disc_state_machine(vport, ndlp, NULL,
3073                                         NLP_EVT_DEVICE_RM);
3074         }
3075
3076         /* This is a special case flush to return all
3077          * IOs before entering this loop. There are
3078          * two points in the code where a flush is
3079          * avoided if the FC_UNLOADING flag is set.
3080          * one is in the multipool destroy,
3081          * (this prevents a crash) and the other is
3082          * in the nvme abort handler, ( also prevents
3083          * a crash). Both of these exceptions are
3084          * cases where the slot is still accessible.
3085          * The flush here is only when the pci slot
3086          * is offline.
3087          */
3088         if (vport->load_flag & FC_UNLOADING &&
3089             pci_channel_offline(phba->pcidev))
3090                 lpfc_sli_flush_io_rings(vport->phba);
3091
3092         /* At this point, ALL ndlp's should be gone
3093          * because of the previous NLP_EVT_DEVICE_RM.
3094          * Lets wait for this to happen, if needed.
3095          */
3096         while (!list_empty(&vport->fc_nodes)) {
3097                 if (i++ > 3000) {
3098                         lpfc_printf_vlog(vport, KERN_ERR,
3099                                          LOG_TRACE_EVENT,
3100                                 "0233 Nodelist not empty\n");
3101                         list_for_each_entry_safe(ndlp, next_ndlp,
3102                                                 &vport->fc_nodes, nlp_listp) {
3103                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
3104                                                  LOG_DISCOVERY,
3105                                                  "0282 did:x%x ndlp:x%px "
3106                                                  "refcnt:%d xflags x%x nflag x%x\n",
3107                                                  ndlp->nlp_DID, (void *)ndlp,
3108                                                  kref_read(&ndlp->kref),
3109                                                  ndlp->fc4_xpt_flags,
3110                                                  ndlp->nlp_flag);
3111                         }
3112                         break;
3113                 }
3114
3115                 /* Wait for any activity on ndlps to settle */
3116                 msleep(10);
3117         }
3118         lpfc_cleanup_vports_rrqs(vport, NULL);
3119 }
3120
3121 /**
3122  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
3123  * @vport: pointer to a virtual N_Port data structure.
3124  *
3125  * This routine stops all the timers associated with a @vport. This function
3126  * is invoked before disabling or deleting a @vport. Note that the physical
3127  * port is treated as @vport 0.
3128  **/
3129 void
3130 lpfc_stop_vport_timers(struct lpfc_vport *vport)
3131 {
3132         del_timer_sync(&vport->els_tmofunc);
3133         del_timer_sync(&vport->delayed_disc_tmo);
3134         lpfc_can_disctmo(vport);
3135         return;
3136 }
3137
3138 /**
3139  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3140  * @phba: pointer to lpfc hba data structure.
3141  *
3142  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
3143  * caller of this routine should already hold the host lock.
3144  **/
3145 void
3146 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3147 {
3148         /* Clear pending FCF rediscovery wait flag */
3149         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3150
3151         /* Now, try to stop the timer */
3152         del_timer(&phba->fcf.redisc_wait);
3153 }
3154
3155 /**
3156  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3157  * @phba: pointer to lpfc hba data structure.
3158  *
3159  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3160  * checks whether the FCF rediscovery wait timer is pending with the host
3161  * lock held before proceeding with disabling the timer and clearing the
3162  * wait timer pendig flag.
3163  **/
3164 void
3165 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3166 {
3167         spin_lock_irq(&phba->hbalock);
3168         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3169                 /* FCF rediscovery timer already fired or stopped */
3170                 spin_unlock_irq(&phba->hbalock);
3171                 return;
3172         }
3173         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3174         /* Clear failover in progress flags */
3175         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3176         spin_unlock_irq(&phba->hbalock);
3177 }
3178
3179 /**
3180  * lpfc_cmf_stop - Stop CMF processing
3181  * @phba: pointer to lpfc hba data structure.
3182  *
3183  * This is called when the link goes down or if CMF mode is turned OFF.
3184  * It is also called when going offline or unloaded just before the
3185  * congestion info buffer is unregistered.
3186  **/
3187 void
3188 lpfc_cmf_stop(struct lpfc_hba *phba)
3189 {
3190         int cpu;
3191         struct lpfc_cgn_stat *cgs;
3192
3193         /* We only do something if CMF is enabled */
3194         if (!phba->sli4_hba.pc_sli4_params.cmf)
3195                 return;
3196
3197         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3198                         "6221 Stop CMF / Cancel Timer\n");
3199
3200         /* Cancel the CMF timer */
3201         hrtimer_cancel(&phba->cmf_timer);
3202
3203         /* Zero CMF counters */
3204         atomic_set(&phba->cmf_busy, 0);
3205         for_each_present_cpu(cpu) {
3206                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3207                 atomic64_set(&cgs->total_bytes, 0);
3208                 atomic64_set(&cgs->rcv_bytes, 0);
3209                 atomic_set(&cgs->rx_io_cnt, 0);
3210                 atomic64_set(&cgs->rx_latency, 0);
3211         }
3212         atomic_set(&phba->cmf_bw_wait, 0);
3213
3214         /* Resume any blocked IO - Queue unblock on workqueue */
3215         queue_work(phba->wq, &phba->unblock_request_work);
3216 }
3217
3218 static inline uint64_t
3219 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3220 {
3221         uint64_t rate = lpfc_sli_port_speed_get(phba);
3222
3223         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3224 }
3225
3226 void
3227 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3228 {
3229         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3230                         "6223 Signal CMF init\n");
3231
3232         /* Use the new fc_linkspeed to recalculate */
3233         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3234         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3235         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3236                                             phba->cmf_interval_rate, 1000);
3237         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3238
3239         /* This is a signal to firmware to sync up CMF BW with link speed */
3240         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3241 }
3242
3243 /**
3244  * lpfc_cmf_start - Start CMF processing
3245  * @phba: pointer to lpfc hba data structure.
3246  *
3247  * This is called when the link comes up or if CMF mode is turned OFF
3248  * to Monitor or Managed.
3249  **/
3250 void
3251 lpfc_cmf_start(struct lpfc_hba *phba)
3252 {
3253         struct lpfc_cgn_stat *cgs;
3254         int cpu;
3255
3256         /* We only do something if CMF is enabled */
3257         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3258             phba->cmf_active_mode == LPFC_CFG_OFF)
3259                 return;
3260
3261         /* Reinitialize congestion buffer info */
3262         lpfc_init_congestion_buf(phba);
3263
3264         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3265         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3266         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3267         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3268
3269         atomic_set(&phba->cmf_busy, 0);
3270         for_each_present_cpu(cpu) {
3271                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3272                 atomic64_set(&cgs->total_bytes, 0);
3273                 atomic64_set(&cgs->rcv_bytes, 0);
3274                 atomic_set(&cgs->rx_io_cnt, 0);
3275                 atomic64_set(&cgs->rx_latency, 0);
3276         }
3277         phba->cmf_latency.tv_sec = 0;
3278         phba->cmf_latency.tv_nsec = 0;
3279
3280         lpfc_cmf_signal_init(phba);
3281
3282         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3283                         "6222 Start CMF / Timer\n");
3284
3285         phba->cmf_timer_cnt = 0;
3286         hrtimer_start(&phba->cmf_timer,
3287                       ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3288                       HRTIMER_MODE_REL);
3289         /* Setup for latency check in IO cmpl routines */
3290         ktime_get_real_ts64(&phba->cmf_latency);
3291
3292         atomic_set(&phba->cmf_bw_wait, 0);
3293         atomic_set(&phba->cmf_stop_io, 0);
3294 }
3295
3296 /**
3297  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3298  * @phba: pointer to lpfc hba data structure.
3299  *
3300  * This routine stops all the timers associated with a HBA. This function is
3301  * invoked before either putting a HBA offline or unloading the driver.
3302  **/
3303 void
3304 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3305 {
3306         if (phba->pport)
3307                 lpfc_stop_vport_timers(phba->pport);
3308         cancel_delayed_work_sync(&phba->eq_delay_work);
3309         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3310         del_timer_sync(&phba->sli.mbox_tmo);
3311         del_timer_sync(&phba->fabric_block_timer);
3312         del_timer_sync(&phba->eratt_poll);
3313         del_timer_sync(&phba->hb_tmofunc);
3314         if (phba->sli_rev == LPFC_SLI_REV4) {
3315                 del_timer_sync(&phba->rrq_tmr);
3316                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3317         }
3318         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3319
3320         switch (phba->pci_dev_grp) {
3321         case LPFC_PCI_DEV_LP:
3322                 /* Stop any LightPulse device specific driver timers */
3323                 del_timer_sync(&phba->fcp_poll_timer);
3324                 break;
3325         case LPFC_PCI_DEV_OC:
3326                 /* Stop any OneConnect device specific driver timers */
3327                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3328                 break;
3329         default:
3330                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3331                                 "0297 Invalid device group (x%x)\n",
3332                                 phba->pci_dev_grp);
3333                 break;
3334         }
3335         return;
3336 }
3337
3338 /**
3339  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3340  * @phba: pointer to lpfc hba data structure.
3341  * @mbx_action: flag for mailbox no wait action.
3342  *
3343  * This routine marks a HBA's management interface as blocked. Once the HBA's
3344  * management interface is marked as blocked, all the user space access to
3345  * the HBA, whether they are from sysfs interface or libdfc interface will
3346  * all be blocked. The HBA is set to block the management interface when the
3347  * driver prepares the HBA interface for online or offline.
3348  **/
3349 static void
3350 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3351 {
3352         unsigned long iflag;
3353         uint8_t actcmd = MBX_HEARTBEAT;
3354         unsigned long timeout;
3355
3356         spin_lock_irqsave(&phba->hbalock, iflag);
3357         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3358         spin_unlock_irqrestore(&phba->hbalock, iflag);
3359         if (mbx_action == LPFC_MBX_NO_WAIT)
3360                 return;
3361         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3362         spin_lock_irqsave(&phba->hbalock, iflag);
3363         if (phba->sli.mbox_active) {
3364                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3365                 /* Determine how long we might wait for the active mailbox
3366                  * command to be gracefully completed by firmware.
3367                  */
3368                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3369                                 phba->sli.mbox_active) * 1000) + jiffies;
3370         }
3371         spin_unlock_irqrestore(&phba->hbalock, iflag);
3372
3373         /* Wait for the outstnading mailbox command to complete */
3374         while (phba->sli.mbox_active) {
3375                 /* Check active mailbox complete status every 2ms */
3376                 msleep(2);
3377                 if (time_after(jiffies, timeout)) {
3378                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3379                                         "2813 Mgmt IO is Blocked %x "
3380                                         "- mbox cmd %x still active\n",
3381                                         phba->sli.sli_flag, actcmd);
3382                         break;
3383                 }
3384         }
3385 }
3386
3387 /**
3388  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3389  * @phba: pointer to lpfc hba data structure.
3390  *
3391  * Allocate RPIs for all active remote nodes. This is needed whenever
3392  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3393  * is to fixup the temporary rpi assignments.
3394  **/
3395 void
3396 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3397 {
3398         struct lpfc_nodelist  *ndlp, *next_ndlp;
3399         struct lpfc_vport **vports;
3400         int i, rpi;
3401
3402         if (phba->sli_rev != LPFC_SLI_REV4)
3403                 return;
3404
3405         vports = lpfc_create_vport_work_array(phba);
3406         if (vports == NULL)
3407                 return;
3408
3409         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3410                 if (vports[i]->load_flag & FC_UNLOADING)
3411                         continue;
3412
3413                 list_for_each_entry_safe(ndlp, next_ndlp,
3414                                          &vports[i]->fc_nodes,
3415                                          nlp_listp) {
3416                         rpi = lpfc_sli4_alloc_rpi(phba);
3417                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3418                                 /* TODO print log? */
3419                                 continue;
3420                         }
3421                         ndlp->nlp_rpi = rpi;
3422                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3423                                          LOG_NODE | LOG_DISCOVERY,
3424                                          "0009 Assign RPI x%x to ndlp x%px "
3425                                          "DID:x%06x flg:x%x\n",
3426                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3427                                          ndlp->nlp_flag);
3428                 }
3429         }
3430         lpfc_destroy_vport_work_array(phba, vports);
3431 }
3432
3433 /**
3434  * lpfc_create_expedite_pool - create expedite pool
3435  * @phba: pointer to lpfc hba data structure.
3436  *
3437  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3438  * to expedite pool. Mark them as expedite.
3439  **/
3440 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3441 {
3442         struct lpfc_sli4_hdw_queue *qp;
3443         struct lpfc_io_buf *lpfc_ncmd;
3444         struct lpfc_io_buf *lpfc_ncmd_next;
3445         struct lpfc_epd_pool *epd_pool;
3446         unsigned long iflag;
3447
3448         epd_pool = &phba->epd_pool;
3449         qp = &phba->sli4_hba.hdwq[0];
3450
3451         spin_lock_init(&epd_pool->lock);
3452         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3453         spin_lock(&epd_pool->lock);
3454         INIT_LIST_HEAD(&epd_pool->list);
3455         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3456                                  &qp->lpfc_io_buf_list_put, list) {
3457                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3458                 lpfc_ncmd->expedite = true;
3459                 qp->put_io_bufs--;
3460                 epd_pool->count++;
3461                 if (epd_pool->count >= XRI_BATCH)
3462                         break;
3463         }
3464         spin_unlock(&epd_pool->lock);
3465         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3466 }
3467
3468 /**
3469  * lpfc_destroy_expedite_pool - destroy expedite pool
3470  * @phba: pointer to lpfc hba data structure.
3471  *
3472  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3473  * of HWQ 0. Clear the mark.
3474  **/
3475 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3476 {
3477         struct lpfc_sli4_hdw_queue *qp;
3478         struct lpfc_io_buf *lpfc_ncmd;
3479         struct lpfc_io_buf *lpfc_ncmd_next;
3480         struct lpfc_epd_pool *epd_pool;
3481         unsigned long iflag;
3482
3483         epd_pool = &phba->epd_pool;
3484         qp = &phba->sli4_hba.hdwq[0];
3485
3486         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3487         spin_lock(&epd_pool->lock);
3488         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3489                                  &epd_pool->list, list) {
3490                 list_move_tail(&lpfc_ncmd->list,
3491                                &qp->lpfc_io_buf_list_put);
3492                 lpfc_ncmd->flags = false;
3493                 qp->put_io_bufs++;
3494                 epd_pool->count--;
3495         }
3496         spin_unlock(&epd_pool->lock);
3497         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3498 }
3499
3500 /**
3501  * lpfc_create_multixri_pools - create multi-XRI pools
3502  * @phba: pointer to lpfc hba data structure.
3503  *
3504  * This routine initialize public, private per HWQ. Then, move XRIs from
3505  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3506  * Initialized.
3507  **/
3508 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3509 {
3510         u32 i, j;
3511         u32 hwq_count;
3512         u32 count_per_hwq;
3513         struct lpfc_io_buf *lpfc_ncmd;
3514         struct lpfc_io_buf *lpfc_ncmd_next;
3515         unsigned long iflag;
3516         struct lpfc_sli4_hdw_queue *qp;
3517         struct lpfc_multixri_pool *multixri_pool;
3518         struct lpfc_pbl_pool *pbl_pool;
3519         struct lpfc_pvt_pool *pvt_pool;
3520
3521         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3522                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3523                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3524                         phba->sli4_hba.io_xri_cnt);
3525
3526         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3527                 lpfc_create_expedite_pool(phba);
3528
3529         hwq_count = phba->cfg_hdw_queue;
3530         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3531
3532         for (i = 0; i < hwq_count; i++) {
3533                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3534
3535                 if (!multixri_pool) {
3536                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3537                                         "1238 Failed to allocate memory for "
3538                                         "multixri_pool\n");
3539
3540                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3541                                 lpfc_destroy_expedite_pool(phba);
3542
3543                         j = 0;
3544                         while (j < i) {
3545                                 qp = &phba->sli4_hba.hdwq[j];
3546                                 kfree(qp->p_multixri_pool);
3547                                 j++;
3548                         }
3549                         phba->cfg_xri_rebalancing = 0;
3550                         return;
3551                 }
3552
3553                 qp = &phba->sli4_hba.hdwq[i];
3554                 qp->p_multixri_pool = multixri_pool;
3555
3556                 multixri_pool->xri_limit = count_per_hwq;
3557                 multixri_pool->rrb_next_hwqid = i;
3558
3559                 /* Deal with public free xri pool */
3560                 pbl_pool = &multixri_pool->pbl_pool;
3561                 spin_lock_init(&pbl_pool->lock);
3562                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3563                 spin_lock(&pbl_pool->lock);
3564                 INIT_LIST_HEAD(&pbl_pool->list);
3565                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3566                                          &qp->lpfc_io_buf_list_put, list) {
3567                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3568                         qp->put_io_bufs--;
3569                         pbl_pool->count++;
3570                 }
3571                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3572                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3573                                 pbl_pool->count, i);
3574                 spin_unlock(&pbl_pool->lock);
3575                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3576
3577                 /* Deal with private free xri pool */
3578                 pvt_pool = &multixri_pool->pvt_pool;
3579                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3580                 pvt_pool->low_watermark = XRI_BATCH;
3581                 spin_lock_init(&pvt_pool->lock);
3582                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3583                 INIT_LIST_HEAD(&pvt_pool->list);
3584                 pvt_pool->count = 0;
3585                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3586         }
3587 }
3588
3589 /**
3590  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3591  * @phba: pointer to lpfc hba data structure.
3592  *
3593  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3594  **/
3595 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3596 {
3597         u32 i;
3598         u32 hwq_count;
3599         struct lpfc_io_buf *lpfc_ncmd;
3600         struct lpfc_io_buf *lpfc_ncmd_next;
3601         unsigned long iflag;
3602         struct lpfc_sli4_hdw_queue *qp;
3603         struct lpfc_multixri_pool *multixri_pool;
3604         struct lpfc_pbl_pool *pbl_pool;
3605         struct lpfc_pvt_pool *pvt_pool;
3606
3607         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3608                 lpfc_destroy_expedite_pool(phba);
3609
3610         if (!(phba->pport->load_flag & FC_UNLOADING))
3611                 lpfc_sli_flush_io_rings(phba);
3612
3613         hwq_count = phba->cfg_hdw_queue;
3614
3615         for (i = 0; i < hwq_count; i++) {
3616                 qp = &phba->sli4_hba.hdwq[i];
3617                 multixri_pool = qp->p_multixri_pool;
3618                 if (!multixri_pool)
3619                         continue;
3620
3621                 qp->p_multixri_pool = NULL;
3622
3623                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3624
3625                 /* Deal with public free xri pool */
3626                 pbl_pool = &multixri_pool->pbl_pool;
3627                 spin_lock(&pbl_pool->lock);
3628
3629                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3630                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3631                                 pbl_pool->count, i);
3632
3633                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3634                                          &pbl_pool->list, list) {
3635                         list_move_tail(&lpfc_ncmd->list,
3636                                        &qp->lpfc_io_buf_list_put);
3637                         qp->put_io_bufs++;
3638                         pbl_pool->count--;
3639                 }
3640
3641                 INIT_LIST_HEAD(&pbl_pool->list);
3642                 pbl_pool->count = 0;
3643
3644                 spin_unlock(&pbl_pool->lock);
3645
3646                 /* Deal with private free xri pool */
3647                 pvt_pool = &multixri_pool->pvt_pool;
3648                 spin_lock(&pvt_pool->lock);
3649
3650                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3651                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3652                                 pvt_pool->count, i);
3653
3654                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3655                                          &pvt_pool->list, list) {
3656                         list_move_tail(&lpfc_ncmd->list,
3657                                        &qp->lpfc_io_buf_list_put);
3658                         qp->put_io_bufs++;
3659                         pvt_pool->count--;
3660                 }
3661
3662                 INIT_LIST_HEAD(&pvt_pool->list);
3663                 pvt_pool->count = 0;
3664
3665                 spin_unlock(&pvt_pool->lock);
3666                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3667
3668                 kfree(multixri_pool);
3669         }
3670 }
3671
3672 /**
3673  * lpfc_online - Initialize and bring a HBA online
3674  * @phba: pointer to lpfc hba data structure.
3675  *
3676  * This routine initializes the HBA and brings a HBA online. During this
3677  * process, the management interface is blocked to prevent user space access
3678  * to the HBA interfering with the driver initialization.
3679  *
3680  * Return codes
3681  *   0 - successful
3682  *   1 - failed
3683  **/
3684 int
3685 lpfc_online(struct lpfc_hba *phba)
3686 {
3687         struct lpfc_vport *vport;
3688         struct lpfc_vport **vports;
3689         int i, error = 0;
3690         bool vpis_cleared = false;
3691
3692         if (!phba)
3693                 return 0;
3694         vport = phba->pport;
3695
3696         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3697                 return 0;
3698
3699         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3700                         "0458 Bring Adapter online\n");
3701
3702         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3703
3704         if (phba->sli_rev == LPFC_SLI_REV4) {
3705                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3706                         lpfc_unblock_mgmt_io(phba);
3707                         return 1;
3708                 }
3709                 spin_lock_irq(&phba->hbalock);
3710                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3711                         vpis_cleared = true;
3712                 spin_unlock_irq(&phba->hbalock);
3713
3714                 /* Reestablish the local initiator port.
3715                  * The offline process destroyed the previous lport.
3716                  */
3717                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3718                                 !phba->nvmet_support) {
3719                         error = lpfc_nvme_create_localport(phba->pport);
3720                         if (error)
3721                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3722                                         "6132 NVME restore reg failed "
3723                                         "on nvmei error x%x\n", error);
3724                 }
3725         } else {
3726                 lpfc_sli_queue_init(phba);
3727                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3728                         lpfc_unblock_mgmt_io(phba);
3729                         return 1;
3730                 }
3731         }
3732
3733         vports = lpfc_create_vport_work_array(phba);
3734         if (vports != NULL) {
3735                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3736                         struct Scsi_Host *shost;
3737                         shost = lpfc_shost_from_vport(vports[i]);
3738                         spin_lock_irq(shost->host_lock);
3739                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3740                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3741                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3742                         if (phba->sli_rev == LPFC_SLI_REV4) {
3743                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3744                                 if ((vpis_cleared) &&
3745                                     (vports[i]->port_type !=
3746                                         LPFC_PHYSICAL_PORT))
3747                                         vports[i]->vpi = 0;
3748                         }
3749                         spin_unlock_irq(shost->host_lock);
3750                 }
3751         }
3752         lpfc_destroy_vport_work_array(phba, vports);
3753
3754         if (phba->cfg_xri_rebalancing)
3755                 lpfc_create_multixri_pools(phba);
3756
3757         lpfc_cpuhp_add(phba);
3758
3759         lpfc_unblock_mgmt_io(phba);
3760         return 0;
3761 }
3762
3763 /**
3764  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3765  * @phba: pointer to lpfc hba data structure.
3766  *
3767  * This routine marks a HBA's management interface as not blocked. Once the
3768  * HBA's management interface is marked as not blocked, all the user space
3769  * access to the HBA, whether they are from sysfs interface or libdfc
3770  * interface will be allowed. The HBA is set to block the management interface
3771  * when the driver prepares the HBA interface for online or offline and then
3772  * set to unblock the management interface afterwards.
3773  **/
3774 void
3775 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3776 {
3777         unsigned long iflag;
3778
3779         spin_lock_irqsave(&phba->hbalock, iflag);
3780         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3781         spin_unlock_irqrestore(&phba->hbalock, iflag);
3782 }
3783
3784 /**
3785  * lpfc_offline_prep - Prepare a HBA to be brought offline
3786  * @phba: pointer to lpfc hba data structure.
3787  * @mbx_action: flag for mailbox shutdown action.
3788  *
3789  * This routine is invoked to prepare a HBA to be brought offline. It performs
3790  * unregistration login to all the nodes on all vports and flushes the mailbox
3791  * queue to make it ready to be brought offline.
3792  **/
3793 void
3794 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3795 {
3796         struct lpfc_vport *vport = phba->pport;
3797         struct lpfc_nodelist  *ndlp, *next_ndlp;
3798         struct lpfc_vport **vports;
3799         struct Scsi_Host *shost;
3800         int i;
3801         int offline;
3802         bool hba_pci_err;
3803
3804         if (vport->fc_flag & FC_OFFLINE_MODE)
3805                 return;
3806
3807         lpfc_block_mgmt_io(phba, mbx_action);
3808
3809         lpfc_linkdown(phba);
3810
3811         offline =  pci_channel_offline(phba->pcidev);
3812         hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
3813
3814         /* Issue an unreg_login to all nodes on all vports */
3815         vports = lpfc_create_vport_work_array(phba);
3816         if (vports != NULL) {
3817                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3818                         if (vports[i]->load_flag & FC_UNLOADING)
3819                                 continue;
3820                         shost = lpfc_shost_from_vport(vports[i]);
3821                         spin_lock_irq(shost->host_lock);
3822                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3823                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3824                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3825                         spin_unlock_irq(shost->host_lock);
3826
3827                         shost = lpfc_shost_from_vport(vports[i]);
3828                         list_for_each_entry_safe(ndlp, next_ndlp,
3829                                                  &vports[i]->fc_nodes,
3830                                                  nlp_listp) {
3831
3832                                 spin_lock_irq(&ndlp->lock);
3833                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3834                                 spin_unlock_irq(&ndlp->lock);
3835
3836                                 if (offline || hba_pci_err) {
3837                                         spin_lock_irq(&ndlp->lock);
3838                                         ndlp->nlp_flag &= ~(NLP_UNREG_INP |
3839                                                             NLP_RPI_REGISTERED);
3840                                         spin_unlock_irq(&ndlp->lock);
3841                                         if (phba->sli_rev == LPFC_SLI_REV4)
3842                                                 lpfc_sli_rpi_release(vports[i],
3843                                                                      ndlp);
3844                                 } else {
3845                                         lpfc_unreg_rpi(vports[i], ndlp);
3846                                 }
3847                                 /*
3848                                  * Whenever an SLI4 port goes offline, free the
3849                                  * RPI. Get a new RPI when the adapter port
3850                                  * comes back online.
3851                                  */
3852                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3853                                         lpfc_printf_vlog(vports[i], KERN_INFO,
3854                                                  LOG_NODE | LOG_DISCOVERY,
3855                                                  "0011 Free RPI x%x on "
3856                                                  "ndlp: x%px did x%x\n",
3857                                                  ndlp->nlp_rpi, ndlp,
3858                                                  ndlp->nlp_DID);
3859                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3860                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3861                                 }
3862
3863                                 if (ndlp->nlp_type & NLP_FABRIC) {
3864                                         lpfc_disc_state_machine(vports[i], ndlp,
3865                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3866
3867                                         /* Don't remove the node unless the node
3868                                          * has been unregistered with the
3869                                          * transport, and we're not in recovery
3870                                          * before dev_loss_tmo triggered.
3871                                          * Otherwise, let dev_loss take care of
3872                                          * the node.
3873                                          */
3874                                         if (!(ndlp->save_flags &
3875                                               NLP_IN_RECOV_POST_DEV_LOSS) &&
3876                                             !(ndlp->fc4_xpt_flags &
3877                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3878                                                 lpfc_disc_state_machine
3879                                                         (vports[i], ndlp,
3880                                                          NULL,
3881                                                          NLP_EVT_DEVICE_RM);
3882                                 }
3883                         }
3884                 }
3885         }
3886         lpfc_destroy_vport_work_array(phba, vports);
3887
3888         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3889
3890         if (phba->wq)
3891                 flush_workqueue(phba->wq);
3892 }
3893
3894 /**
3895  * lpfc_offline - Bring a HBA offline
3896  * @phba: pointer to lpfc hba data structure.
3897  *
3898  * This routine actually brings a HBA offline. It stops all the timers
3899  * associated with the HBA, brings down the SLI layer, and eventually
3900  * marks the HBA as in offline state for the upper layer protocol.
3901  **/
3902 void
3903 lpfc_offline(struct lpfc_hba *phba)
3904 {
3905         struct Scsi_Host  *shost;
3906         struct lpfc_vport **vports;
3907         int i;
3908
3909         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3910                 return;
3911
3912         /* stop port and all timers associated with this hba */
3913         lpfc_stop_port(phba);
3914
3915         /* Tear down the local and target port registrations.  The
3916          * nvme transports need to cleanup.
3917          */
3918         lpfc_nvmet_destroy_targetport(phba);
3919         lpfc_nvme_destroy_localport(phba->pport);
3920
3921         vports = lpfc_create_vport_work_array(phba);
3922         if (vports != NULL)
3923                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3924                         lpfc_stop_vport_timers(vports[i]);
3925         lpfc_destroy_vport_work_array(phba, vports);
3926         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3927                         "0460 Bring Adapter offline\n");
3928         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3929            now.  */
3930         lpfc_sli_hba_down(phba);
3931         spin_lock_irq(&phba->hbalock);
3932         phba->work_ha = 0;
3933         spin_unlock_irq(&phba->hbalock);
3934         vports = lpfc_create_vport_work_array(phba);
3935         if (vports != NULL)
3936                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3937                         shost = lpfc_shost_from_vport(vports[i]);
3938                         spin_lock_irq(shost->host_lock);
3939                         vports[i]->work_port_events = 0;
3940                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3941                         spin_unlock_irq(shost->host_lock);
3942                 }
3943         lpfc_destroy_vport_work_array(phba, vports);
3944         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3945          * in hba_unset
3946          */
3947         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3948                 __lpfc_cpuhp_remove(phba);
3949
3950         if (phba->cfg_xri_rebalancing)
3951                 lpfc_destroy_multixri_pools(phba);
3952 }
3953
3954 /**
3955  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3956  * @phba: pointer to lpfc hba data structure.
3957  *
3958  * This routine is to free all the SCSI buffers and IOCBs from the driver
3959  * list back to kernel. It is called from lpfc_pci_remove_one to free
3960  * the internal resources before the device is removed from the system.
3961  **/
3962 static void
3963 lpfc_scsi_free(struct lpfc_hba *phba)
3964 {
3965         struct lpfc_io_buf *sb, *sb_next;
3966
3967         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3968                 return;
3969
3970         spin_lock_irq(&phba->hbalock);
3971
3972         /* Release all the lpfc_scsi_bufs maintained by this host. */
3973
3974         spin_lock(&phba->scsi_buf_list_put_lock);
3975         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3976                                  list) {
3977                 list_del(&sb->list);
3978                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3979                               sb->dma_handle);
3980                 kfree(sb);
3981                 phba->total_scsi_bufs--;
3982         }
3983         spin_unlock(&phba->scsi_buf_list_put_lock);
3984
3985         spin_lock(&phba->scsi_buf_list_get_lock);
3986         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3987                                  list) {
3988                 list_del(&sb->list);
3989                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3990                               sb->dma_handle);
3991                 kfree(sb);
3992                 phba->total_scsi_bufs--;
3993         }
3994         spin_unlock(&phba->scsi_buf_list_get_lock);
3995         spin_unlock_irq(&phba->hbalock);
3996 }
3997
3998 /**
3999  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
4000  * @phba: pointer to lpfc hba data structure.
4001  *
4002  * This routine is to free all the IO buffers and IOCBs from the driver
4003  * list back to kernel. It is called from lpfc_pci_remove_one to free
4004  * the internal resources before the device is removed from the system.
4005  **/
4006 void
4007 lpfc_io_free(struct lpfc_hba *phba)
4008 {
4009         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
4010         struct lpfc_sli4_hdw_queue *qp;
4011         int idx;
4012
4013         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4014                 qp = &phba->sli4_hba.hdwq[idx];
4015                 /* Release all the lpfc_nvme_bufs maintained by this host. */
4016                 spin_lock(&qp->io_buf_list_put_lock);
4017                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4018                                          &qp->lpfc_io_buf_list_put,
4019                                          list) {
4020                         list_del(&lpfc_ncmd->list);
4021                         qp->put_io_bufs--;
4022                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4023                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4024                         if (phba->cfg_xpsgl && !phba->nvmet_support)
4025                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
4026                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
4027                         kfree(lpfc_ncmd);
4028                         qp->total_io_bufs--;
4029                 }
4030                 spin_unlock(&qp->io_buf_list_put_lock);
4031
4032                 spin_lock(&qp->io_buf_list_get_lock);
4033                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4034                                          &qp->lpfc_io_buf_list_get,
4035                                          list) {
4036                         list_del(&lpfc_ncmd->list);
4037                         qp->get_io_bufs--;
4038                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4039                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4040                         if (phba->cfg_xpsgl && !phba->nvmet_support)
4041                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
4042                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
4043                         kfree(lpfc_ncmd);
4044                         qp->total_io_bufs--;
4045                 }
4046                 spin_unlock(&qp->io_buf_list_get_lock);
4047         }
4048 }
4049
4050 /**
4051  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
4052  * @phba: pointer to lpfc hba data structure.
4053  *
4054  * This routine first calculates the sizes of the current els and allocated
4055  * scsi sgl lists, and then goes through all sgls to updates the physical
4056  * XRIs assigned due to port function reset. During port initialization, the
4057  * current els and allocated scsi sgl lists are 0s.
4058  *
4059  * Return codes
4060  *   0 - successful (for now, it always returns 0)
4061  **/
4062 int
4063 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
4064 {
4065         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4066         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4067         LIST_HEAD(els_sgl_list);
4068         int rc;
4069
4070         /*
4071          * update on pci function's els xri-sgl list
4072          */
4073         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4074
4075         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
4076                 /* els xri-sgl expanded */
4077                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
4078                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4079                                 "3157 ELS xri-sgl count increased from "
4080                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4081                                 els_xri_cnt);
4082                 /* allocate the additional els sgls */
4083                 for (i = 0; i < xri_cnt; i++) {
4084                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4085                                              GFP_KERNEL);
4086                         if (sglq_entry == NULL) {
4087                                 lpfc_printf_log(phba, KERN_ERR,
4088                                                 LOG_TRACE_EVENT,
4089                                                 "2562 Failure to allocate an "
4090                                                 "ELS sgl entry:%d\n", i);
4091                                 rc = -ENOMEM;
4092                                 goto out_free_mem;
4093                         }
4094                         sglq_entry->buff_type = GEN_BUFF_TYPE;
4095                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
4096                                                            &sglq_entry->phys);
4097                         if (sglq_entry->virt == NULL) {
4098                                 kfree(sglq_entry);
4099                                 lpfc_printf_log(phba, KERN_ERR,
4100                                                 LOG_TRACE_EVENT,
4101                                                 "2563 Failure to allocate an "
4102                                                 "ELS mbuf:%d\n", i);
4103                                 rc = -ENOMEM;
4104                                 goto out_free_mem;
4105                         }
4106                         sglq_entry->sgl = sglq_entry->virt;
4107                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4108                         sglq_entry->state = SGL_FREED;
4109                         list_add_tail(&sglq_entry->list, &els_sgl_list);
4110                 }
4111                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4112                 list_splice_init(&els_sgl_list,
4113                                  &phba->sli4_hba.lpfc_els_sgl_list);
4114                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4115         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
4116                 /* els xri-sgl shrinked */
4117                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
4118                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4119                                 "3158 ELS xri-sgl count decreased from "
4120                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4121                                 els_xri_cnt);
4122                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4123                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
4124                                  &els_sgl_list);
4125                 /* release extra els sgls from list */
4126                 for (i = 0; i < xri_cnt; i++) {
4127                         list_remove_head(&els_sgl_list,
4128                                          sglq_entry, struct lpfc_sglq, list);
4129                         if (sglq_entry) {
4130                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
4131                                                  sglq_entry->phys);
4132                                 kfree(sglq_entry);
4133                         }
4134                 }
4135                 list_splice_init(&els_sgl_list,
4136                                  &phba->sli4_hba.lpfc_els_sgl_list);
4137                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4138         } else
4139                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4140                                 "3163 ELS xri-sgl count unchanged: %d\n",
4141                                 els_xri_cnt);
4142         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
4143
4144         /* update xris to els sgls on the list */
4145         sglq_entry = NULL;
4146         sglq_entry_next = NULL;
4147         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4148                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
4149                 lxri = lpfc_sli4_next_xritag(phba);
4150                 if (lxri == NO_XRI) {
4151                         lpfc_printf_log(phba, KERN_ERR,
4152                                         LOG_TRACE_EVENT,
4153                                         "2400 Failed to allocate xri for "
4154                                         "ELS sgl\n");
4155                         rc = -ENOMEM;
4156                         goto out_free_mem;
4157                 }
4158                 sglq_entry->sli4_lxritag = lxri;
4159                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4160         }
4161         return 0;
4162
4163 out_free_mem:
4164         lpfc_free_els_sgl_list(phba);
4165         return rc;
4166 }
4167
4168 /**
4169  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4170  * @phba: pointer to lpfc hba data structure.
4171  *
4172  * This routine first calculates the sizes of the current els and allocated
4173  * scsi sgl lists, and then goes through all sgls to updates the physical
4174  * XRIs assigned due to port function reset. During port initialization, the
4175  * current els and allocated scsi sgl lists are 0s.
4176  *
4177  * Return codes
4178  *   0 - successful (for now, it always returns 0)
4179  **/
4180 int
4181 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4182 {
4183         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4184         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4185         uint16_t nvmet_xri_cnt;
4186         LIST_HEAD(nvmet_sgl_list);
4187         int rc;
4188
4189         /*
4190          * update on pci function's nvmet xri-sgl list
4191          */
4192         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4193
4194         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4195         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4196         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4197                 /* els xri-sgl expanded */
4198                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4199                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4200                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4201                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4202                 /* allocate the additional nvmet sgls */
4203                 for (i = 0; i < xri_cnt; i++) {
4204                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4205                                              GFP_KERNEL);
4206                         if (sglq_entry == NULL) {
4207                                 lpfc_printf_log(phba, KERN_ERR,
4208                                                 LOG_TRACE_EVENT,
4209                                                 "6303 Failure to allocate an "
4210                                                 "NVMET sgl entry:%d\n", i);
4211                                 rc = -ENOMEM;
4212                                 goto out_free_mem;
4213                         }
4214                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4215                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4216                                                            &sglq_entry->phys);
4217                         if (sglq_entry->virt == NULL) {
4218                                 kfree(sglq_entry);
4219                                 lpfc_printf_log(phba, KERN_ERR,
4220                                                 LOG_TRACE_EVENT,
4221                                                 "6304 Failure to allocate an "
4222                                                 "NVMET buf:%d\n", i);
4223                                 rc = -ENOMEM;
4224                                 goto out_free_mem;
4225                         }
4226                         sglq_entry->sgl = sglq_entry->virt;
4227                         memset(sglq_entry->sgl, 0,
4228                                phba->cfg_sg_dma_buf_size);
4229                         sglq_entry->state = SGL_FREED;
4230                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4231                 }
4232                 spin_lock_irq(&phba->hbalock);
4233                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4234                 list_splice_init(&nvmet_sgl_list,
4235                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4236                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4237                 spin_unlock_irq(&phba->hbalock);
4238         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4239                 /* nvmet xri-sgl shrunk */
4240                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4241                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4242                                 "6305 NVMET xri-sgl count decreased from "
4243                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4244                                 nvmet_xri_cnt);
4245                 spin_lock_irq(&phba->hbalock);
4246                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4247                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4248                                  &nvmet_sgl_list);
4249                 /* release extra nvmet sgls from list */
4250                 for (i = 0; i < xri_cnt; i++) {
4251                         list_remove_head(&nvmet_sgl_list,
4252                                          sglq_entry, struct lpfc_sglq, list);
4253                         if (sglq_entry) {
4254                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4255                                                     sglq_entry->phys);
4256                                 kfree(sglq_entry);
4257                         }
4258                 }
4259                 list_splice_init(&nvmet_sgl_list,
4260                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4261                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4262                 spin_unlock_irq(&phba->hbalock);
4263         } else
4264                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4265                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4266                                 nvmet_xri_cnt);
4267         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4268
4269         /* update xris to nvmet sgls on the list */
4270         sglq_entry = NULL;
4271         sglq_entry_next = NULL;
4272         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4273                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4274                 lxri = lpfc_sli4_next_xritag(phba);
4275                 if (lxri == NO_XRI) {
4276                         lpfc_printf_log(phba, KERN_ERR,
4277                                         LOG_TRACE_EVENT,
4278                                         "6307 Failed to allocate xri for "
4279                                         "NVMET sgl\n");
4280                         rc = -ENOMEM;
4281                         goto out_free_mem;
4282                 }
4283                 sglq_entry->sli4_lxritag = lxri;
4284                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4285         }
4286         return 0;
4287
4288 out_free_mem:
4289         lpfc_free_nvmet_sgl_list(phba);
4290         return rc;
4291 }
4292
4293 int
4294 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4295 {
4296         LIST_HEAD(blist);
4297         struct lpfc_sli4_hdw_queue *qp;
4298         struct lpfc_io_buf *lpfc_cmd;
4299         struct lpfc_io_buf *iobufp, *prev_iobufp;
4300         int idx, cnt, xri, inserted;
4301
4302         cnt = 0;
4303         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4304                 qp = &phba->sli4_hba.hdwq[idx];
4305                 spin_lock_irq(&qp->io_buf_list_get_lock);
4306                 spin_lock(&qp->io_buf_list_put_lock);
4307
4308                 /* Take everything off the get and put lists */
4309                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4310                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4311                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4312                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4313                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4314                 qp->get_io_bufs = 0;
4315                 qp->put_io_bufs = 0;
4316                 qp->total_io_bufs = 0;
4317                 spin_unlock(&qp->io_buf_list_put_lock);
4318                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4319         }
4320
4321         /*
4322          * Take IO buffers off blist and put on cbuf sorted by XRI.
4323          * This is because POST_SGL takes a sequential range of XRIs
4324          * to post to the firmware.
4325          */
4326         for (idx = 0; idx < cnt; idx++) {
4327                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4328                 if (!lpfc_cmd)
4329                         return cnt;
4330                 if (idx == 0) {
4331                         list_add_tail(&lpfc_cmd->list, cbuf);
4332                         continue;
4333                 }
4334                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4335                 inserted = 0;
4336                 prev_iobufp = NULL;
4337                 list_for_each_entry(iobufp, cbuf, list) {
4338                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4339                                 if (prev_iobufp)
4340                                         list_add(&lpfc_cmd->list,
4341                                                  &prev_iobufp->list);
4342                                 else
4343                                         list_add(&lpfc_cmd->list, cbuf);
4344                                 inserted = 1;
4345                                 break;
4346                         }
4347                         prev_iobufp = iobufp;
4348                 }
4349                 if (!inserted)
4350                         list_add_tail(&lpfc_cmd->list, cbuf);
4351         }
4352         return cnt;
4353 }
4354
4355 int
4356 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4357 {
4358         struct lpfc_sli4_hdw_queue *qp;
4359         struct lpfc_io_buf *lpfc_cmd;
4360         int idx, cnt;
4361
4362         qp = phba->sli4_hba.hdwq;
4363         cnt = 0;
4364         while (!list_empty(cbuf)) {
4365                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4366                         list_remove_head(cbuf, lpfc_cmd,
4367                                          struct lpfc_io_buf, list);
4368                         if (!lpfc_cmd)
4369                                 return cnt;
4370                         cnt++;
4371                         qp = &phba->sli4_hba.hdwq[idx];
4372                         lpfc_cmd->hdwq_no = idx;
4373                         lpfc_cmd->hdwq = qp;
4374                         lpfc_cmd->cur_iocbq.cmd_cmpl = NULL;
4375                         spin_lock(&qp->io_buf_list_put_lock);
4376                         list_add_tail(&lpfc_cmd->list,
4377                                       &qp->lpfc_io_buf_list_put);
4378                         qp->put_io_bufs++;
4379                         qp->total_io_bufs++;
4380                         spin_unlock(&qp->io_buf_list_put_lock);
4381                 }
4382         }
4383         return cnt;
4384 }
4385
4386 /**
4387  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4388  * @phba: pointer to lpfc hba data structure.
4389  *
4390  * This routine first calculates the sizes of the current els and allocated
4391  * scsi sgl lists, and then goes through all sgls to updates the physical
4392  * XRIs assigned due to port function reset. During port initialization, the
4393  * current els and allocated scsi sgl lists are 0s.
4394  *
4395  * Return codes
4396  *   0 - successful (for now, it always returns 0)
4397  **/
4398 int
4399 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4400 {
4401         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4402         uint16_t i, lxri, els_xri_cnt;
4403         uint16_t io_xri_cnt, io_xri_max;
4404         LIST_HEAD(io_sgl_list);
4405         int rc, cnt;
4406
4407         /*
4408          * update on pci function's allocated nvme xri-sgl list
4409          */
4410
4411         /* maximum number of xris available for nvme buffers */
4412         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4413         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4414         phba->sli4_hba.io_xri_max = io_xri_max;
4415
4416         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4417                         "6074 Current allocated XRI sgl count:%d, "
4418                         "maximum XRI count:%d els_xri_cnt:%d\n\n",
4419                         phba->sli4_hba.io_xri_cnt,
4420                         phba->sli4_hba.io_xri_max,
4421                         els_xri_cnt);
4422
4423         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4424
4425         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4426                 /* max nvme xri shrunk below the allocated nvme buffers */
4427                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4428                                         phba->sli4_hba.io_xri_max;
4429                 /* release the extra allocated nvme buffers */
4430                 for (i = 0; i < io_xri_cnt; i++) {
4431                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4432                                          struct lpfc_io_buf, list);
4433                         if (lpfc_ncmd) {
4434                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4435                                               lpfc_ncmd->data,
4436                                               lpfc_ncmd->dma_handle);
4437                                 kfree(lpfc_ncmd);
4438                         }
4439                 }
4440                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4441         }
4442
4443         /* update xris associated to remaining allocated nvme buffers */
4444         lpfc_ncmd = NULL;
4445         lpfc_ncmd_next = NULL;
4446         phba->sli4_hba.io_xri_cnt = cnt;
4447         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4448                                  &io_sgl_list, list) {
4449                 lxri = lpfc_sli4_next_xritag(phba);
4450                 if (lxri == NO_XRI) {
4451                         lpfc_printf_log(phba, KERN_ERR,
4452                                         LOG_TRACE_EVENT,
4453                                         "6075 Failed to allocate xri for "
4454                                         "nvme buffer\n");
4455                         rc = -ENOMEM;
4456                         goto out_free_mem;
4457                 }
4458                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4459                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4460         }
4461         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4462         return 0;
4463
4464 out_free_mem:
4465         lpfc_io_free(phba);
4466         return rc;
4467 }
4468
4469 /**
4470  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4471  * @phba: Pointer to lpfc hba data structure.
4472  * @num_to_alloc: The requested number of buffers to allocate.
4473  *
4474  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4475  * the nvme buffer contains all the necessary information needed to initiate
4476  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4477  * them on a list, it post them to the port by using SGL block post.
4478  *
4479  * Return codes:
4480  *   int - number of IO buffers that were allocated and posted.
4481  *   0 = failure, less than num_to_alloc is a partial failure.
4482  **/
4483 int
4484 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4485 {
4486         struct lpfc_io_buf *lpfc_ncmd;
4487         struct lpfc_iocbq *pwqeq;
4488         uint16_t iotag, lxri = 0;
4489         int bcnt, num_posted;
4490         LIST_HEAD(prep_nblist);
4491         LIST_HEAD(post_nblist);
4492         LIST_HEAD(nvme_nblist);
4493
4494         phba->sli4_hba.io_xri_cnt = 0;
4495         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4496                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4497                 if (!lpfc_ncmd)
4498                         break;
4499                 /*
4500                  * Get memory from the pci pool to map the virt space to
4501                  * pci bus space for an I/O. The DMA buffer includes the
4502                  * number of SGE's necessary to support the sg_tablesize.
4503                  */
4504                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4505                                                   GFP_KERNEL,
4506                                                   &lpfc_ncmd->dma_handle);
4507                 if (!lpfc_ncmd->data) {
4508                         kfree(lpfc_ncmd);
4509                         break;
4510                 }
4511
4512                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4513                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4514                 } else {
4515                         /*
4516                          * 4K Page alignment is CRITICAL to BlockGuard, double
4517                          * check to be sure.
4518                          */
4519                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4520                             (((unsigned long)(lpfc_ncmd->data) &
4521                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4522                                 lpfc_printf_log(phba, KERN_ERR,
4523                                                 LOG_TRACE_EVENT,
4524                                                 "3369 Memory alignment err: "
4525                                                 "addr=%lx\n",
4526                                                 (unsigned long)lpfc_ncmd->data);
4527                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4528                                               lpfc_ncmd->data,
4529                                               lpfc_ncmd->dma_handle);
4530                                 kfree(lpfc_ncmd);
4531                                 break;
4532                         }
4533                 }
4534
4535                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4536
4537                 lxri = lpfc_sli4_next_xritag(phba);
4538                 if (lxri == NO_XRI) {
4539                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4540                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4541                         kfree(lpfc_ncmd);
4542                         break;
4543                 }
4544                 pwqeq = &lpfc_ncmd->cur_iocbq;
4545
4546                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4547                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4548                 if (iotag == 0) {
4549                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4550                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4551                         kfree(lpfc_ncmd);
4552                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4553                                         "6121 Failed to allocate IOTAG for"
4554                                         " XRI:0x%x\n", lxri);
4555                         lpfc_sli4_free_xri(phba, lxri);
4556                         break;
4557                 }
4558                 pwqeq->sli4_lxritag = lxri;
4559                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4560
4561                 /* Initialize local short-hand pointers. */
4562                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4563                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4564                 lpfc_ncmd->cur_iocbq.io_buf = lpfc_ncmd;
4565                 spin_lock_init(&lpfc_ncmd->buf_lock);
4566
4567                 /* add the nvme buffer to a post list */
4568                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4569                 phba->sli4_hba.io_xri_cnt++;
4570         }
4571         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4572                         "6114 Allocate %d out of %d requested new NVME "
4573                         "buffers of size x%zu bytes\n", bcnt, num_to_alloc,
4574                         sizeof(*lpfc_ncmd));
4575
4576
4577         /* post the list of nvme buffer sgls to port if available */
4578         if (!list_empty(&post_nblist))
4579                 num_posted = lpfc_sli4_post_io_sgl_list(
4580                                 phba, &post_nblist, bcnt);
4581         else
4582                 num_posted = 0;
4583
4584         return num_posted;
4585 }
4586
4587 static uint64_t
4588 lpfc_get_wwpn(struct lpfc_hba *phba)
4589 {
4590         uint64_t wwn;
4591         int rc;
4592         LPFC_MBOXQ_t *mboxq;
4593         MAILBOX_t *mb;
4594
4595         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4596                                                 GFP_KERNEL);
4597         if (!mboxq)
4598                 return (uint64_t)-1;
4599
4600         /* First get WWN of HBA instance */
4601         lpfc_read_nv(phba, mboxq);
4602         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4603         if (rc != MBX_SUCCESS) {
4604                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4605                                 "6019 Mailbox failed , mbxCmd x%x "
4606                                 "READ_NV, mbxStatus x%x\n",
4607                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4608                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4609                 mempool_free(mboxq, phba->mbox_mem_pool);
4610                 return (uint64_t) -1;
4611         }
4612         mb = &mboxq->u.mb;
4613         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4614         /* wwn is WWPN of HBA instance */
4615         mempool_free(mboxq, phba->mbox_mem_pool);
4616         if (phba->sli_rev == LPFC_SLI_REV4)
4617                 return be64_to_cpu(wwn);
4618         else
4619                 return rol64(wwn, 32);
4620 }
4621
4622 static unsigned short lpfc_get_sg_tablesize(struct lpfc_hba *phba)
4623 {
4624         if (phba->sli_rev == LPFC_SLI_REV4)
4625                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4626                         return LPFC_MAX_SG_TABLESIZE;
4627                 else
4628                         return phba->cfg_scsi_seg_cnt;
4629         else
4630                 return phba->cfg_sg_seg_cnt;
4631 }
4632
4633 /**
4634  * lpfc_vmid_res_alloc - Allocates resources for VMID
4635  * @phba: pointer to lpfc hba data structure.
4636  * @vport: pointer to vport data structure
4637  *
4638  * This routine allocated the resources needed for the VMID.
4639  *
4640  * Return codes
4641  *      0 on Success
4642  *      Non-0 on Failure
4643  */
4644 static int
4645 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4646 {
4647         /* VMID feature is supported only on SLI4 */
4648         if (phba->sli_rev == LPFC_SLI_REV3) {
4649                 phba->cfg_vmid_app_header = 0;
4650                 phba->cfg_vmid_priority_tagging = 0;
4651         }
4652
4653         if (lpfc_is_vmid_enabled(phba)) {
4654                 vport->vmid =
4655                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4656                             GFP_KERNEL);
4657                 if (!vport->vmid)
4658                         return -ENOMEM;
4659
4660                 rwlock_init(&vport->vmid_lock);
4661
4662                 /* Set the VMID parameters for the vport */
4663                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4664                 vport->vmid_inactivity_timeout =
4665                     phba->cfg_vmid_inactivity_timeout;
4666                 vport->max_vmid = phba->cfg_max_vmid;
4667                 vport->cur_vmid_cnt = 0;
4668
4669                 vport->vmid_priority_range = bitmap_zalloc
4670                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4671
4672                 if (!vport->vmid_priority_range) {
4673                         kfree(vport->vmid);
4674                         return -ENOMEM;
4675                 }
4676
4677                 hash_init(vport->hash_table);
4678         }
4679         return 0;
4680 }
4681
4682 /**
4683  * lpfc_create_port - Create an FC port
4684  * @phba: pointer to lpfc hba data structure.
4685  * @instance: a unique integer ID to this FC port.
4686  * @dev: pointer to the device data structure.
4687  *
4688  * This routine creates a FC port for the upper layer protocol. The FC port
4689  * can be created on top of either a physical port or a virtual port provided
4690  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4691  * and associates the FC port created before adding the shost into the SCSI
4692  * layer.
4693  *
4694  * Return codes
4695  *   @vport - pointer to the virtual N_Port data structure.
4696  *   NULL - port create failed.
4697  **/
4698 struct lpfc_vport *
4699 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4700 {
4701         struct lpfc_vport *vport;
4702         struct Scsi_Host  *shost = NULL;
4703         struct scsi_host_template *template;
4704         int error = 0;
4705         int i;
4706         uint64_t wwn;
4707         bool use_no_reset_hba = false;
4708         int rc;
4709
4710         if (lpfc_no_hba_reset_cnt) {
4711                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4712                     dev == &phba->pcidev->dev) {
4713                         /* Reset the port first */
4714                         lpfc_sli_brdrestart(phba);
4715                         rc = lpfc_sli_chipset_init(phba);
4716                         if (rc)
4717                                 return NULL;
4718                 }
4719                 wwn = lpfc_get_wwpn(phba);
4720         }
4721
4722         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4723                 if (wwn == lpfc_no_hba_reset[i]) {
4724                         lpfc_printf_log(phba, KERN_ERR,
4725                                         LOG_TRACE_EVENT,
4726                                         "6020 Setting use_no_reset port=%llx\n",
4727                                         wwn);
4728                         use_no_reset_hba = true;
4729                         break;
4730                 }
4731         }
4732
4733         /* Seed template for SCSI host registration */
4734         if (dev == &phba->pcidev->dev) {
4735                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4736                         /* Seed physical port template */
4737                         template = &lpfc_template;
4738
4739                         if (use_no_reset_hba)
4740                                 /* template is for a no reset SCSI Host */
4741                                 template->eh_host_reset_handler = NULL;
4742
4743                         /* Seed updated value of sg_tablesize */
4744                         template->sg_tablesize = lpfc_get_sg_tablesize(phba);
4745                 } else {
4746                         /* NVMET is for physical port only */
4747                         template = &lpfc_template_nvme;
4748                 }
4749         } else {
4750                 /* Seed vport template */
4751                 template = &lpfc_vport_template;
4752
4753                 /* Seed updated value of sg_tablesize */
4754                 template->sg_tablesize = lpfc_get_sg_tablesize(phba);
4755         }
4756
4757         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4758         if (!shost)
4759                 goto out;
4760
4761         vport = (struct lpfc_vport *) shost->hostdata;
4762         vport->phba = phba;
4763         vport->load_flag |= FC_LOADING;
4764         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4765         vport->fc_rscn_flush = 0;
4766         lpfc_get_vport_cfgparam(vport);
4767
4768         /* Adjust value in vport */
4769         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4770
4771         shost->unique_id = instance;
4772         shost->max_id = LPFC_MAX_TARGET;
4773         shost->max_lun = vport->cfg_max_luns;
4774         shost->this_id = -1;
4775         shost->max_cmd_len = 16;
4776
4777         if (phba->sli_rev == LPFC_SLI_REV4) {
4778                 if (!phba->cfg_fcp_mq_threshold ||
4779                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4780                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4781
4782                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4783                                             phba->cfg_fcp_mq_threshold);
4784
4785                 shost->dma_boundary =
4786                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4787         } else
4788                 /* SLI-3 has a limited number of hardware queues (3),
4789                  * thus there is only one for FCP processing.
4790                  */
4791                 shost->nr_hw_queues = 1;
4792
4793         /*
4794          * Set initial can_queue value since 0 is no longer supported and
4795          * scsi_add_host will fail. This will be adjusted later based on the
4796          * max xri value determined in hba setup.
4797          */
4798         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4799         if (dev != &phba->pcidev->dev) {
4800                 shost->transportt = lpfc_vport_transport_template;
4801                 vport->port_type = LPFC_NPIV_PORT;
4802         } else {
4803                 shost->transportt = lpfc_transport_template;
4804                 vport->port_type = LPFC_PHYSICAL_PORT;
4805         }
4806
4807         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4808                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4809                         "SEGcnt %d/%d\n",
4810                         vport->port_type, shost->sg_tablesize,
4811                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4812
4813         /* Allocate the resources for VMID */
4814         rc = lpfc_vmid_res_alloc(phba, vport);
4815
4816         if (rc)
4817                 goto out_put_shost;
4818
4819         /* Initialize all internally managed lists. */
4820         INIT_LIST_HEAD(&vport->fc_nodes);
4821         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4822         spin_lock_init(&vport->work_port_lock);
4823
4824         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4825
4826         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4827
4828         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4829
4830         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4831                 lpfc_setup_bg(phba, shost);
4832
4833         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4834         if (error)
4835                 goto out_free_vmid;
4836
4837         spin_lock_irq(&phba->port_list_lock);
4838         list_add_tail(&vport->listentry, &phba->port_list);
4839         spin_unlock_irq(&phba->port_list_lock);
4840         return vport;
4841
4842 out_free_vmid:
4843         kfree(vport->vmid);
4844         bitmap_free(vport->vmid_priority_range);
4845 out_put_shost:
4846         scsi_host_put(shost);
4847 out:
4848         return NULL;
4849 }
4850
4851 /**
4852  * destroy_port -  destroy an FC port
4853  * @vport: pointer to an lpfc virtual N_Port data structure.
4854  *
4855  * This routine destroys a FC port from the upper layer protocol. All the
4856  * resources associated with the port are released.
4857  **/
4858 void
4859 destroy_port(struct lpfc_vport *vport)
4860 {
4861         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4862         struct lpfc_hba  *phba = vport->phba;
4863
4864         lpfc_debugfs_terminate(vport);
4865         fc_remove_host(shost);
4866         scsi_remove_host(shost);
4867
4868         spin_lock_irq(&phba->port_list_lock);
4869         list_del_init(&vport->listentry);
4870         spin_unlock_irq(&phba->port_list_lock);
4871
4872         lpfc_cleanup(vport);
4873         return;
4874 }
4875
4876 /**
4877  * lpfc_get_instance - Get a unique integer ID
4878  *
4879  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4880  * uses the kernel idr facility to perform the task.
4881  *
4882  * Return codes:
4883  *   instance - a unique integer ID allocated as the new instance.
4884  *   -1 - lpfc get instance failed.
4885  **/
4886 int
4887 lpfc_get_instance(void)
4888 {
4889         int ret;
4890
4891         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4892         return ret < 0 ? -1 : ret;
4893 }
4894
4895 /**
4896  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4897  * @shost: pointer to SCSI host data structure.
4898  * @time: elapsed time of the scan in jiffies.
4899  *
4900  * This routine is called by the SCSI layer with a SCSI host to determine
4901  * whether the scan host is finished.
4902  *
4903  * Note: there is no scan_start function as adapter initialization will have
4904  * asynchronously kicked off the link initialization.
4905  *
4906  * Return codes
4907  *   0 - SCSI host scan is not over yet.
4908  *   1 - SCSI host scan is over.
4909  **/
4910 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4911 {
4912         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4913         struct lpfc_hba   *phba = vport->phba;
4914         int stat = 0;
4915
4916         spin_lock_irq(shost->host_lock);
4917
4918         if (vport->load_flag & FC_UNLOADING) {
4919                 stat = 1;
4920                 goto finished;
4921         }
4922         if (time >= msecs_to_jiffies(30 * 1000)) {
4923                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4924                                 "0461 Scanning longer than 30 "
4925                                 "seconds.  Continuing initialization\n");
4926                 stat = 1;
4927                 goto finished;
4928         }
4929         if (time >= msecs_to_jiffies(15 * 1000) &&
4930             phba->link_state <= LPFC_LINK_DOWN) {
4931                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4932                                 "0465 Link down longer than 15 "
4933                                 "seconds.  Continuing initialization\n");
4934                 stat = 1;
4935                 goto finished;
4936         }
4937
4938         if (vport->port_state != LPFC_VPORT_READY)
4939                 goto finished;
4940         if (vport->num_disc_nodes || vport->fc_prli_sent)
4941                 goto finished;
4942         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4943                 goto finished;
4944         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4945                 goto finished;
4946
4947         stat = 1;
4948
4949 finished:
4950         spin_unlock_irq(shost->host_lock);
4951         return stat;
4952 }
4953
4954 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4955 {
4956         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4957         struct lpfc_hba   *phba = vport->phba;
4958
4959         fc_host_supported_speeds(shost) = 0;
4960         /*
4961          * Avoid reporting supported link speed for FCoE as it can't be
4962          * controlled via FCoE.
4963          */
4964         if (phba->hba_flag & HBA_FCOE_MODE)
4965                 return;
4966
4967         if (phba->lmt & LMT_256Gb)
4968                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4969         if (phba->lmt & LMT_128Gb)
4970                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4971         if (phba->lmt & LMT_64Gb)
4972                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4973         if (phba->lmt & LMT_32Gb)
4974                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4975         if (phba->lmt & LMT_16Gb)
4976                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4977         if (phba->lmt & LMT_10Gb)
4978                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4979         if (phba->lmt & LMT_8Gb)
4980                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4981         if (phba->lmt & LMT_4Gb)
4982                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4983         if (phba->lmt & LMT_2Gb)
4984                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4985         if (phba->lmt & LMT_1Gb)
4986                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4987 }
4988
4989 /**
4990  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4991  * @shost: pointer to SCSI host data structure.
4992  *
4993  * This routine initializes a given SCSI host attributes on a FC port. The
4994  * SCSI host can be either on top of a physical port or a virtual port.
4995  **/
4996 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4997 {
4998         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4999         struct lpfc_hba   *phba = vport->phba;
5000         /*
5001          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
5002          */
5003
5004         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
5005         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
5006         fc_host_supported_classes(shost) = FC_COS_CLASS3;
5007
5008         memset(fc_host_supported_fc4s(shost), 0,
5009                sizeof(fc_host_supported_fc4s(shost)));
5010         fc_host_supported_fc4s(shost)[2] = 1;
5011         fc_host_supported_fc4s(shost)[7] = 1;
5012
5013         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
5014                                  sizeof fc_host_symbolic_name(shost));
5015
5016         lpfc_host_supported_speeds_set(shost);
5017
5018         fc_host_maxframe_size(shost) =
5019                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
5020                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
5021
5022         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
5023
5024         /* This value is also unchanging */
5025         memset(fc_host_active_fc4s(shost), 0,
5026                sizeof(fc_host_active_fc4s(shost)));
5027         fc_host_active_fc4s(shost)[2] = 1;
5028         fc_host_active_fc4s(shost)[7] = 1;
5029
5030         fc_host_max_npiv_vports(shost) = phba->max_vpi;
5031         spin_lock_irq(shost->host_lock);
5032         vport->load_flag &= ~FC_LOADING;
5033         spin_unlock_irq(shost->host_lock);
5034 }
5035
5036 /**
5037  * lpfc_stop_port_s3 - Stop SLI3 device port
5038  * @phba: pointer to lpfc hba data structure.
5039  *
5040  * This routine is invoked to stop an SLI3 device port, it stops the device
5041  * from generating interrupts and stops the device driver's timers for the
5042  * device.
5043  **/
5044 static void
5045 lpfc_stop_port_s3(struct lpfc_hba *phba)
5046 {
5047         /* Clear all interrupt enable conditions */
5048         writel(0, phba->HCregaddr);
5049         readl(phba->HCregaddr); /* flush */
5050         /* Clear all pending interrupts */
5051         writel(0xffffffff, phba->HAregaddr);
5052         readl(phba->HAregaddr); /* flush */
5053
5054         /* Reset some HBA SLI setup states */
5055         lpfc_stop_hba_timers(phba);
5056         phba->pport->work_port_events = 0;
5057 }
5058
5059 /**
5060  * lpfc_stop_port_s4 - Stop SLI4 device port
5061  * @phba: pointer to lpfc hba data structure.
5062  *
5063  * This routine is invoked to stop an SLI4 device port, it stops the device
5064  * from generating interrupts and stops the device driver's timers for the
5065  * device.
5066  **/
5067 static void
5068 lpfc_stop_port_s4(struct lpfc_hba *phba)
5069 {
5070         /* Reset some HBA SLI4 setup states */
5071         lpfc_stop_hba_timers(phba);
5072         if (phba->pport)
5073                 phba->pport->work_port_events = 0;
5074         phba->sli4_hba.intr_enable = 0;
5075 }
5076
5077 /**
5078  * lpfc_stop_port - Wrapper function for stopping hba port
5079  * @phba: Pointer to HBA context object.
5080  *
5081  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
5082  * the API jump table function pointer from the lpfc_hba struct.
5083  **/
5084 void
5085 lpfc_stop_port(struct lpfc_hba *phba)
5086 {
5087         phba->lpfc_stop_port(phba);
5088
5089         if (phba->wq)
5090                 flush_workqueue(phba->wq);
5091 }
5092
5093 /**
5094  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
5095  * @phba: Pointer to hba for which this call is being executed.
5096  *
5097  * This routine starts the timer waiting for the FCF rediscovery to complete.
5098  **/
5099 void
5100 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
5101 {
5102         unsigned long fcf_redisc_wait_tmo =
5103                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
5104         /* Start fcf rediscovery wait period timer */
5105         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
5106         spin_lock_irq(&phba->hbalock);
5107         /* Allow action to new fcf asynchronous event */
5108         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
5109         /* Mark the FCF rediscovery pending state */
5110         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
5111         spin_unlock_irq(&phba->hbalock);
5112 }
5113
5114 /**
5115  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
5116  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5117  *
5118  * This routine is invoked when waiting for FCF table rediscover has been
5119  * timed out. If new FCF record(s) has (have) been discovered during the
5120  * wait period, a new FCF event shall be added to the FCOE async event
5121  * list, and then worker thread shall be waked up for processing from the
5122  * worker thread context.
5123  **/
5124 static void
5125 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
5126 {
5127         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
5128
5129         /* Don't send FCF rediscovery event if timer cancelled */
5130         spin_lock_irq(&phba->hbalock);
5131         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
5132                 spin_unlock_irq(&phba->hbalock);
5133                 return;
5134         }
5135         /* Clear FCF rediscovery timer pending flag */
5136         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
5137         /* FCF rediscovery event to worker thread */
5138         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
5139         spin_unlock_irq(&phba->hbalock);
5140         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
5141                         "2776 FCF rediscover quiescent timer expired\n");
5142         /* wake up worker thread */
5143         lpfc_worker_wake_up(phba);
5144 }
5145
5146 /**
5147  * lpfc_vmid_poll - VMID timeout detection
5148  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5149  *
5150  * This routine is invoked when there is no I/O on by a VM for the specified
5151  * amount of time. When this situation is detected, the VMID has to be
5152  * deregistered from the switch and all the local resources freed. The VMID
5153  * will be reassigned to the VM once the I/O begins.
5154  **/
5155 static void
5156 lpfc_vmid_poll(struct timer_list *t)
5157 {
5158         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5159         u32 wake_up = 0;
5160
5161         /* check if there is a need to issue QFPA */
5162         if (phba->pport->vmid_priority_tagging) {
5163                 wake_up = 1;
5164                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5165         }
5166
5167         /* Is the vmid inactivity timer enabled */
5168         if (phba->pport->vmid_inactivity_timeout ||
5169             phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5170                 wake_up = 1;
5171                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5172         }
5173
5174         if (wake_up)
5175                 lpfc_worker_wake_up(phba);
5176
5177         /* restart the timer for the next iteration */
5178         mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5179                                                         LPFC_VMID_TIMER));
5180 }
5181
5182 /**
5183  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5184  * @phba: pointer to lpfc hba data structure.
5185  * @acqe_link: pointer to the async link completion queue entry.
5186  *
5187  * This routine is to parse the SLI4 link-attention link fault code.
5188  **/
5189 static void
5190 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5191                            struct lpfc_acqe_link *acqe_link)
5192 {
5193         switch (bf_get(lpfc_acqe_fc_la_att_type, acqe_link)) {
5194         case LPFC_FC_LA_TYPE_LINK_DOWN:
5195         case LPFC_FC_LA_TYPE_TRUNKING_EVENT:
5196         case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
5197         case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
5198                 break;
5199         default:
5200                 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5201                 case LPFC_ASYNC_LINK_FAULT_NONE:
5202                 case LPFC_ASYNC_LINK_FAULT_LOCAL:
5203                 case LPFC_ASYNC_LINK_FAULT_REMOTE:
5204                 case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5205                         break;
5206                 default:
5207                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5208                                         "0398 Unknown link fault code: x%x\n",
5209                                         bf_get(lpfc_acqe_link_fault, acqe_link));
5210                         break;
5211                 }
5212                 break;
5213         }
5214 }
5215
5216 /**
5217  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5218  * @phba: pointer to lpfc hba data structure.
5219  * @acqe_link: pointer to the async link completion queue entry.
5220  *
5221  * This routine is to parse the SLI4 link attention type and translate it
5222  * into the base driver's link attention type coding.
5223  *
5224  * Return: Link attention type in terms of base driver's coding.
5225  **/
5226 static uint8_t
5227 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5228                           struct lpfc_acqe_link *acqe_link)
5229 {
5230         uint8_t att_type;
5231
5232         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5233         case LPFC_ASYNC_LINK_STATUS_DOWN:
5234         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5235                 att_type = LPFC_ATT_LINK_DOWN;
5236                 break;
5237         case LPFC_ASYNC_LINK_STATUS_UP:
5238                 /* Ignore physical link up events - wait for logical link up */
5239                 att_type = LPFC_ATT_RESERVED;
5240                 break;
5241         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5242                 att_type = LPFC_ATT_LINK_UP;
5243                 break;
5244         default:
5245                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5246                                 "0399 Invalid link attention type: x%x\n",
5247                                 bf_get(lpfc_acqe_link_status, acqe_link));
5248                 att_type = LPFC_ATT_RESERVED;
5249                 break;
5250         }
5251         return att_type;
5252 }
5253
5254 /**
5255  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5256  * @phba: pointer to lpfc hba data structure.
5257  *
5258  * This routine is to get an SLI3 FC port's link speed in Mbps.
5259  *
5260  * Return: link speed in terms of Mbps.
5261  **/
5262 uint32_t
5263 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5264 {
5265         uint32_t link_speed;
5266
5267         if (!lpfc_is_link_up(phba))
5268                 return 0;
5269
5270         if (phba->sli_rev <= LPFC_SLI_REV3) {
5271                 switch (phba->fc_linkspeed) {
5272                 case LPFC_LINK_SPEED_1GHZ:
5273                         link_speed = 1000;
5274                         break;
5275                 case LPFC_LINK_SPEED_2GHZ:
5276                         link_speed = 2000;
5277                         break;
5278                 case LPFC_LINK_SPEED_4GHZ:
5279                         link_speed = 4000;
5280                         break;
5281                 case LPFC_LINK_SPEED_8GHZ:
5282                         link_speed = 8000;
5283                         break;
5284                 case LPFC_LINK_SPEED_10GHZ:
5285                         link_speed = 10000;
5286                         break;
5287                 case LPFC_LINK_SPEED_16GHZ:
5288                         link_speed = 16000;
5289                         break;
5290                 default:
5291                         link_speed = 0;
5292                 }
5293         } else {
5294                 if (phba->sli4_hba.link_state.logical_speed)
5295                         link_speed =
5296                               phba->sli4_hba.link_state.logical_speed;
5297                 else
5298                         link_speed = phba->sli4_hba.link_state.speed;
5299         }
5300         return link_speed;
5301 }
5302
5303 /**
5304  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5305  * @phba: pointer to lpfc hba data structure.
5306  * @evt_code: asynchronous event code.
5307  * @speed_code: asynchronous event link speed code.
5308  *
5309  * This routine is to parse the giving SLI4 async event link speed code into
5310  * value of Mbps for the link speed.
5311  *
5312  * Return: link speed in terms of Mbps.
5313  **/
5314 static uint32_t
5315 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5316                            uint8_t speed_code)
5317 {
5318         uint32_t port_speed;
5319
5320         switch (evt_code) {
5321         case LPFC_TRAILER_CODE_LINK:
5322                 switch (speed_code) {
5323                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5324                         port_speed = 0;
5325                         break;
5326                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5327                         port_speed = 10;
5328                         break;
5329                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5330                         port_speed = 100;
5331                         break;
5332                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5333                         port_speed = 1000;
5334                         break;
5335                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5336                         port_speed = 10000;
5337                         break;
5338                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5339                         port_speed = 20000;
5340                         break;
5341                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5342                         port_speed = 25000;
5343                         break;
5344                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5345                         port_speed = 40000;
5346                         break;
5347                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5348                         port_speed = 100000;
5349                         break;
5350                 default:
5351                         port_speed = 0;
5352                 }
5353                 break;
5354         case LPFC_TRAILER_CODE_FC:
5355                 switch (speed_code) {
5356                 case LPFC_FC_LA_SPEED_UNKNOWN:
5357                         port_speed = 0;
5358                         break;
5359                 case LPFC_FC_LA_SPEED_1G:
5360                         port_speed = 1000;
5361                         break;
5362                 case LPFC_FC_LA_SPEED_2G:
5363                         port_speed = 2000;
5364                         break;
5365                 case LPFC_FC_LA_SPEED_4G:
5366                         port_speed = 4000;
5367                         break;
5368                 case LPFC_FC_LA_SPEED_8G:
5369                         port_speed = 8000;
5370                         break;
5371                 case LPFC_FC_LA_SPEED_10G:
5372                         port_speed = 10000;
5373                         break;
5374                 case LPFC_FC_LA_SPEED_16G:
5375                         port_speed = 16000;
5376                         break;
5377                 case LPFC_FC_LA_SPEED_32G:
5378                         port_speed = 32000;
5379                         break;
5380                 case LPFC_FC_LA_SPEED_64G:
5381                         port_speed = 64000;
5382                         break;
5383                 case LPFC_FC_LA_SPEED_128G:
5384                         port_speed = 128000;
5385                         break;
5386                 case LPFC_FC_LA_SPEED_256G:
5387                         port_speed = 256000;
5388                         break;
5389                 default:
5390                         port_speed = 0;
5391                 }
5392                 break;
5393         default:
5394                 port_speed = 0;
5395         }
5396         return port_speed;
5397 }
5398
5399 /**
5400  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5401  * @phba: pointer to lpfc hba data structure.
5402  * @acqe_link: pointer to the async link completion queue entry.
5403  *
5404  * This routine is to handle the SLI4 asynchronous FCoE link event.
5405  **/
5406 static void
5407 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5408                          struct lpfc_acqe_link *acqe_link)
5409 {
5410         LPFC_MBOXQ_t *pmb;
5411         MAILBOX_t *mb;
5412         struct lpfc_mbx_read_top *la;
5413         uint8_t att_type;
5414         int rc;
5415
5416         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5417         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5418                 return;
5419         phba->fcoe_eventtag = acqe_link->event_tag;
5420         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5421         if (!pmb) {
5422                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5423                                 "0395 The mboxq allocation failed\n");
5424                 return;
5425         }
5426
5427         rc = lpfc_mbox_rsrc_prep(phba, pmb);
5428         if (rc) {
5429                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5430                                 "0396 mailbox allocation failed\n");
5431                 goto out_free_pmb;
5432         }
5433
5434         /* Cleanup any outstanding ELS commands */
5435         lpfc_els_flush_all_cmd(phba);
5436
5437         /* Block ELS IOCBs until we have done process link event */
5438         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5439
5440         /* Update link event statistics */
5441         phba->sli.slistat.link_event++;
5442
5443         /* Create lpfc_handle_latt mailbox command from link ACQE */
5444         lpfc_read_topology(phba, pmb, (struct lpfc_dmabuf *)pmb->ctx_buf);
5445         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5446         pmb->vport = phba->pport;
5447
5448         /* Keep the link status for extra SLI4 state machine reference */
5449         phba->sli4_hba.link_state.speed =
5450                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5451                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5452         phba->sli4_hba.link_state.duplex =
5453                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5454         phba->sli4_hba.link_state.status =
5455                                 bf_get(lpfc_acqe_link_status, acqe_link);
5456         phba->sli4_hba.link_state.type =
5457                                 bf_get(lpfc_acqe_link_type, acqe_link);
5458         phba->sli4_hba.link_state.number =
5459                                 bf_get(lpfc_acqe_link_number, acqe_link);
5460         phba->sli4_hba.link_state.fault =
5461                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5462         phba->sli4_hba.link_state.logical_speed =
5463                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5464
5465         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5466                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5467                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5468                         "Logical speed:%dMbps Fault:%d\n",
5469                         phba->sli4_hba.link_state.speed,
5470                         phba->sli4_hba.link_state.topology,
5471                         phba->sli4_hba.link_state.status,
5472                         phba->sli4_hba.link_state.type,
5473                         phba->sli4_hba.link_state.number,
5474                         phba->sli4_hba.link_state.logical_speed,
5475                         phba->sli4_hba.link_state.fault);
5476         /*
5477          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5478          * topology info. Note: Optional for non FC-AL ports.
5479          */
5480         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5481                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5482                 if (rc == MBX_NOT_FINISHED)
5483                         goto out_free_pmb;
5484                 return;
5485         }
5486         /*
5487          * For FCoE Mode: fill in all the topology information we need and call
5488          * the READ_TOPOLOGY completion routine to continue without actually
5489          * sending the READ_TOPOLOGY mailbox command to the port.
5490          */
5491         /* Initialize completion status */
5492         mb = &pmb->u.mb;
5493         mb->mbxStatus = MBX_SUCCESS;
5494
5495         /* Parse port fault information field */
5496         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5497
5498         /* Parse and translate link attention fields */
5499         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5500         la->eventTag = acqe_link->event_tag;
5501         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5502         bf_set(lpfc_mbx_read_top_link_spd, la,
5503                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5504
5505         /* Fake the the following irrelvant fields */
5506         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5507         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5508         bf_set(lpfc_mbx_read_top_il, la, 0);
5509         bf_set(lpfc_mbx_read_top_pb, la, 0);
5510         bf_set(lpfc_mbx_read_top_fa, la, 0);
5511         bf_set(lpfc_mbx_read_top_mm, la, 0);
5512
5513         /* Invoke the lpfc_handle_latt mailbox command callback function */
5514         lpfc_mbx_cmpl_read_topology(phba, pmb);
5515
5516         return;
5517
5518 out_free_pmb:
5519         lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
5520 }
5521
5522 /**
5523  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5524  * topology.
5525  * @phba: pointer to lpfc hba data structure.
5526  * @speed_code: asynchronous event link speed code.
5527  *
5528  * This routine is to parse the giving SLI4 async event link speed code into
5529  * value of Read topology link speed.
5530  *
5531  * Return: link speed in terms of Read topology.
5532  **/
5533 static uint8_t
5534 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5535 {
5536         uint8_t port_speed;
5537
5538         switch (speed_code) {
5539         case LPFC_FC_LA_SPEED_1G:
5540                 port_speed = LPFC_LINK_SPEED_1GHZ;
5541                 break;
5542         case LPFC_FC_LA_SPEED_2G:
5543                 port_speed = LPFC_LINK_SPEED_2GHZ;
5544                 break;
5545         case LPFC_FC_LA_SPEED_4G:
5546                 port_speed = LPFC_LINK_SPEED_4GHZ;
5547                 break;
5548         case LPFC_FC_LA_SPEED_8G:
5549                 port_speed = LPFC_LINK_SPEED_8GHZ;
5550                 break;
5551         case LPFC_FC_LA_SPEED_16G:
5552                 port_speed = LPFC_LINK_SPEED_16GHZ;
5553                 break;
5554         case LPFC_FC_LA_SPEED_32G:
5555                 port_speed = LPFC_LINK_SPEED_32GHZ;
5556                 break;
5557         case LPFC_FC_LA_SPEED_64G:
5558                 port_speed = LPFC_LINK_SPEED_64GHZ;
5559                 break;
5560         case LPFC_FC_LA_SPEED_128G:
5561                 port_speed = LPFC_LINK_SPEED_128GHZ;
5562                 break;
5563         case LPFC_FC_LA_SPEED_256G:
5564                 port_speed = LPFC_LINK_SPEED_256GHZ;
5565                 break;
5566         default:
5567                 port_speed = 0;
5568                 break;
5569         }
5570
5571         return port_speed;
5572 }
5573
5574 void
5575 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5576 {
5577         if (!phba->rx_monitor) {
5578                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5579                                 "4411 Rx Monitor Info is empty.\n");
5580         } else {
5581                 lpfc_rx_monitor_report(phba, phba->rx_monitor, NULL, 0,
5582                                        LPFC_MAX_RXMONITOR_DUMP);
5583         }
5584 }
5585
5586 /**
5587  * lpfc_cgn_update_stat - Save data into congestion stats buffer
5588  * @phba: pointer to lpfc hba data structure.
5589  * @dtag: FPIN descriptor received
5590  *
5591  * Increment the FPIN received counter/time when it happens.
5592  */
5593 void
5594 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5595 {
5596         struct lpfc_cgn_info *cp;
5597         struct tm broken;
5598         struct timespec64 cur_time;
5599         u32 cnt;
5600         u32 value;
5601
5602         /* Make sure we have a congestion info buffer */
5603         if (!phba->cgn_i)
5604                 return;
5605         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5606         ktime_get_real_ts64(&cur_time);
5607         time64_to_tm(cur_time.tv_sec, 0, &broken);
5608
5609         /* Update congestion statistics */
5610         switch (dtag) {
5611         case ELS_DTAG_LNK_INTEGRITY:
5612                 cnt = le32_to_cpu(cp->link_integ_notification);
5613                 cnt++;
5614                 cp->link_integ_notification = cpu_to_le32(cnt);
5615
5616                 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5617                 cp->cgn_stat_lnk_day = broken.tm_mday;
5618                 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5619                 cp->cgn_stat_lnk_hour = broken.tm_hour;
5620                 cp->cgn_stat_lnk_min = broken.tm_min;
5621                 cp->cgn_stat_lnk_sec = broken.tm_sec;
5622                 break;
5623         case ELS_DTAG_DELIVERY:
5624                 cnt = le32_to_cpu(cp->delivery_notification);
5625                 cnt++;
5626                 cp->delivery_notification = cpu_to_le32(cnt);
5627
5628                 cp->cgn_stat_del_month = broken.tm_mon + 1;
5629                 cp->cgn_stat_del_day = broken.tm_mday;
5630                 cp->cgn_stat_del_year = broken.tm_year - 100;
5631                 cp->cgn_stat_del_hour = broken.tm_hour;
5632                 cp->cgn_stat_del_min = broken.tm_min;
5633                 cp->cgn_stat_del_sec = broken.tm_sec;
5634                 break;
5635         case ELS_DTAG_PEER_CONGEST:
5636                 cnt = le32_to_cpu(cp->cgn_peer_notification);
5637                 cnt++;
5638                 cp->cgn_peer_notification = cpu_to_le32(cnt);
5639
5640                 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5641                 cp->cgn_stat_peer_day = broken.tm_mday;
5642                 cp->cgn_stat_peer_year = broken.tm_year - 100;
5643                 cp->cgn_stat_peer_hour = broken.tm_hour;
5644                 cp->cgn_stat_peer_min = broken.tm_min;
5645                 cp->cgn_stat_peer_sec = broken.tm_sec;
5646                 break;
5647         case ELS_DTAG_CONGESTION:
5648                 cnt = le32_to_cpu(cp->cgn_notification);
5649                 cnt++;
5650                 cp->cgn_notification = cpu_to_le32(cnt);
5651
5652                 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5653                 cp->cgn_stat_cgn_day = broken.tm_mday;
5654                 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5655                 cp->cgn_stat_cgn_hour = broken.tm_hour;
5656                 cp->cgn_stat_cgn_min = broken.tm_min;
5657                 cp->cgn_stat_cgn_sec = broken.tm_sec;
5658         }
5659         if (phba->cgn_fpin_frequency &&
5660             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5661                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5662                 cp->cgn_stat_npm = value;
5663         }
5664         value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5665                                     LPFC_CGN_CRC32_SEED);
5666         cp->cgn_info_crc = cpu_to_le32(value);
5667 }
5668
5669 /**
5670  * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5671  * @phba: pointer to lpfc hba data structure.
5672  *
5673  * Save the congestion event data every minute.
5674  * On the hour collapse all the minute data into hour data. Every day
5675  * collapse all the hour data into daily data. Separate driver
5676  * and fabrc congestion event counters that will be saved out
5677  * to the registered congestion buffer every minute.
5678  */
5679 static void
5680 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5681 {
5682         struct lpfc_cgn_info *cp;
5683         struct tm broken;
5684         struct timespec64 cur_time;
5685         uint32_t i, index;
5686         uint16_t value, mvalue;
5687         uint64_t bps;
5688         uint32_t mbps;
5689         uint32_t dvalue, wvalue, lvalue, avalue;
5690         uint64_t latsum;
5691         __le16 *ptr;
5692         __le32 *lptr;
5693         __le16 *mptr;
5694
5695         /* Make sure we have a congestion info buffer */
5696         if (!phba->cgn_i)
5697                 return;
5698         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5699
5700         if (time_before(jiffies, phba->cgn_evt_timestamp))
5701                 return;
5702         phba->cgn_evt_timestamp = jiffies +
5703                         msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5704         phba->cgn_evt_minute++;
5705
5706         /* We should get to this point in the routine on 1 minute intervals */
5707
5708         ktime_get_real_ts64(&cur_time);
5709         time64_to_tm(cur_time.tv_sec, 0, &broken);
5710
5711         if (phba->cgn_fpin_frequency &&
5712             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5713                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5714                 cp->cgn_stat_npm = value;
5715         }
5716
5717         /* Read and clear the latency counters for this minute */
5718         lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5719         latsum = atomic64_read(&phba->cgn_latency_evt);
5720         atomic_set(&phba->cgn_latency_evt_cnt, 0);
5721         atomic64_set(&phba->cgn_latency_evt, 0);
5722
5723         /* We need to store MB/sec bandwidth in the congestion information.
5724          * block_cnt is count of 512 byte blocks for the entire minute,
5725          * bps will get bytes per sec before finally converting to MB/sec.
5726          */
5727         bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5728         phba->rx_block_cnt = 0;
5729         mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5730
5731         /* Every minute */
5732         /* cgn parameters */
5733         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5734         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5735         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5736         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5737
5738         /* Fill in default LUN qdepth */
5739         value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5740         cp->cgn_lunq = cpu_to_le16(value);
5741
5742         /* Record congestion buffer info - every minute
5743          * cgn_driver_evt_cnt (Driver events)
5744          * cgn_fabric_warn_cnt (Congestion Warnings)
5745          * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5746          * cgn_fabric_alarm_cnt (Congestion Alarms)
5747          */
5748         index = ++cp->cgn_index_minute;
5749         if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5750                 cp->cgn_index_minute = 0;
5751                 index = 0;
5752         }
5753
5754         /* Get the number of driver events in this sample and reset counter */
5755         dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5756         atomic_set(&phba->cgn_driver_evt_cnt, 0);
5757
5758         /* Get the number of warning events - FPIN and Signal for this minute */
5759         wvalue = 0;
5760         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5761             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5762             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5763                 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5764         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5765
5766         /* Get the number of alarm events - FPIN and Signal for this minute */
5767         avalue = 0;
5768         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5769             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5770                 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5771         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5772
5773         /* Collect the driver, warning, alarm and latency counts for this
5774          * minute into the driver congestion buffer.
5775          */
5776         ptr = &cp->cgn_drvr_min[index];
5777         value = (uint16_t)dvalue;
5778         *ptr = cpu_to_le16(value);
5779
5780         ptr = &cp->cgn_warn_min[index];
5781         value = (uint16_t)wvalue;
5782         *ptr = cpu_to_le16(value);
5783
5784         ptr = &cp->cgn_alarm_min[index];
5785         value = (uint16_t)avalue;
5786         *ptr = cpu_to_le16(value);
5787
5788         lptr = &cp->cgn_latency_min[index];
5789         if (lvalue) {
5790                 lvalue = (uint32_t)div_u64(latsum, lvalue);
5791                 *lptr = cpu_to_le32(lvalue);
5792         } else {
5793                 *lptr = 0;
5794         }
5795
5796         /* Collect the bandwidth value into the driver's congesion buffer. */
5797         mptr = &cp->cgn_bw_min[index];
5798         *mptr = cpu_to_le16(mvalue);
5799
5800         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5801                         "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5802                         index, dvalue, wvalue, *lptr, mvalue, avalue);
5803
5804         /* Every hour */
5805         if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5806                 /* Record congestion buffer info - every hour
5807                  * Collapse all minutes into an hour
5808                  */
5809                 index = ++cp->cgn_index_hour;
5810                 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5811                         cp->cgn_index_hour = 0;
5812                         index = 0;
5813                 }
5814
5815                 dvalue = 0;
5816                 wvalue = 0;
5817                 lvalue = 0;
5818                 avalue = 0;
5819                 mvalue = 0;
5820                 mbps = 0;
5821                 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5822                         dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5823                         wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5824                         lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5825                         mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5826                         avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5827                 }
5828                 if (lvalue)             /* Avg of latency averages */
5829                         lvalue /= LPFC_MIN_HOUR;
5830                 if (mbps)               /* Avg of Bandwidth averages */
5831                         mvalue = mbps / LPFC_MIN_HOUR;
5832
5833                 lptr = &cp->cgn_drvr_hr[index];
5834                 *lptr = cpu_to_le32(dvalue);
5835                 lptr = &cp->cgn_warn_hr[index];
5836                 *lptr = cpu_to_le32(wvalue);
5837                 lptr = &cp->cgn_latency_hr[index];
5838                 *lptr = cpu_to_le32(lvalue);
5839                 mptr = &cp->cgn_bw_hr[index];
5840                 *mptr = cpu_to_le16(mvalue);
5841                 lptr = &cp->cgn_alarm_hr[index];
5842                 *lptr = cpu_to_le32(avalue);
5843
5844                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5845                                 "2419 Congestion Info - hour "
5846                                 "(%d): %d %d %d %d %d\n",
5847                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5848         }
5849
5850         /* Every day */
5851         if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5852                 /* Record congestion buffer info - every hour
5853                  * Collapse all hours into a day. Rotate days
5854                  * after LPFC_MAX_CGN_DAYS.
5855                  */
5856                 index = ++cp->cgn_index_day;
5857                 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5858                         cp->cgn_index_day = 0;
5859                         index = 0;
5860                 }
5861
5862                 /* Anytime we overwrite daily index 0, after we wrap,
5863                  * we will be overwriting the oldest day, so we must
5864                  * update the congestion data start time for that day.
5865                  * That start time should have previously been saved after
5866                  * we wrote the last days worth of data.
5867                  */
5868                 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5869                         time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5870
5871                         cp->cgn_info_month = broken.tm_mon + 1;
5872                         cp->cgn_info_day = broken.tm_mday;
5873                         cp->cgn_info_year = broken.tm_year - 100;
5874                         cp->cgn_info_hour = broken.tm_hour;
5875                         cp->cgn_info_minute = broken.tm_min;
5876                         cp->cgn_info_second = broken.tm_sec;
5877
5878                         lpfc_printf_log
5879                                 (phba, KERN_INFO, LOG_CGN_MGMT,
5880                                 "2646 CGNInfo idx0 Start Time: "
5881                                 "%d/%d/%d %d:%d:%d\n",
5882                                 cp->cgn_info_day, cp->cgn_info_month,
5883                                 cp->cgn_info_year, cp->cgn_info_hour,
5884                                 cp->cgn_info_minute, cp->cgn_info_second);
5885                 }
5886
5887                 dvalue = 0;
5888                 wvalue = 0;
5889                 lvalue = 0;
5890                 mvalue = 0;
5891                 mbps = 0;
5892                 avalue = 0;
5893                 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5894                         dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5895                         wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5896                         lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5897                         mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5898                         avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5899                 }
5900                 if (lvalue)             /* Avg of latency averages */
5901                         lvalue /= LPFC_HOUR_DAY;
5902                 if (mbps)               /* Avg of Bandwidth averages */
5903                         mvalue = mbps / LPFC_HOUR_DAY;
5904
5905                 lptr = &cp->cgn_drvr_day[index];
5906                 *lptr = cpu_to_le32(dvalue);
5907                 lptr = &cp->cgn_warn_day[index];
5908                 *lptr = cpu_to_le32(wvalue);
5909                 lptr = &cp->cgn_latency_day[index];
5910                 *lptr = cpu_to_le32(lvalue);
5911                 mptr = &cp->cgn_bw_day[index];
5912                 *mptr = cpu_to_le16(mvalue);
5913                 lptr = &cp->cgn_alarm_day[index];
5914                 *lptr = cpu_to_le32(avalue);
5915
5916                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5917                                 "2420 Congestion Info - daily (%d): "
5918                                 "%d %d %d %d %d\n",
5919                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5920
5921                 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5922                  * so we are wrapped on any data after this.
5923                  * Save this as the start time for the next day.
5924                  */
5925                 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5926                         phba->hba_flag |= HBA_CGN_DAY_WRAP;
5927                         ktime_get_real_ts64(&phba->cgn_daily_ts);
5928                 }
5929         }
5930
5931         /* Use the frequency found in the last rcv'ed FPIN */
5932         value = phba->cgn_fpin_frequency;
5933         cp->cgn_warn_freq = cpu_to_le16(value);
5934         cp->cgn_alarm_freq = cpu_to_le16(value);
5935
5936         lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5937                                      LPFC_CGN_CRC32_SEED);
5938         cp->cgn_info_crc = cpu_to_le32(lvalue);
5939 }
5940
5941 /**
5942  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5943  * @phba: The Hba for which this call is being executed.
5944  *
5945  * The routine calculates the latency from the beginning of the CMF timer
5946  * interval to the current point in time. It is called from IO completion
5947  * when we exceed our Bandwidth limitation for the time interval.
5948  */
5949 uint32_t
5950 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5951 {
5952         struct timespec64 cmpl_time;
5953         uint32_t msec = 0;
5954
5955         ktime_get_real_ts64(&cmpl_time);
5956
5957         /* This routine works on a ms granularity so sec and usec are
5958          * converted accordingly.
5959          */
5960         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5961                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5962                         NSEC_PER_MSEC;
5963         } else {
5964                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5965                         msec = (cmpl_time.tv_sec -
5966                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5967                         msec += ((cmpl_time.tv_nsec -
5968                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5969                 } else {
5970                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5971                                 1) * MSEC_PER_SEC;
5972                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5973                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5974                 }
5975         }
5976         return msec;
5977 }
5978
5979 /**
5980  * lpfc_cmf_timer -  This is the timer function for one congestion
5981  * rate interval.
5982  * @timer: Pointer to the high resolution timer that expired
5983  */
5984 static enum hrtimer_restart
5985 lpfc_cmf_timer(struct hrtimer *timer)
5986 {
5987         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5988                                              cmf_timer);
5989         struct rx_info_entry entry;
5990         uint32_t io_cnt;
5991         uint32_t busy, max_read;
5992         uint64_t total, rcv, lat, mbpi, extra, cnt;
5993         int timer_interval = LPFC_CMF_INTERVAL;
5994         uint32_t ms;
5995         struct lpfc_cgn_stat *cgs;
5996         int cpu;
5997
5998         /* Only restart the timer if congestion mgmt is on */
5999         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
6000             !phba->cmf_latency.tv_sec) {
6001                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
6002                                 "6224 CMF timer exit: %d %lld\n",
6003                                 phba->cmf_active_mode,
6004                                 (uint64_t)phba->cmf_latency.tv_sec);
6005                 return HRTIMER_NORESTART;
6006         }
6007
6008         /* If pport is not ready yet, just exit and wait for
6009          * the next timer cycle to hit.
6010          */
6011         if (!phba->pport)
6012                 goto skip;
6013
6014         /* Do not block SCSI IO while in the timer routine since
6015          * total_bytes will be cleared
6016          */
6017         atomic_set(&phba->cmf_stop_io, 1);
6018
6019         /* First we need to calculate the actual ms between
6020          * the last timer interrupt and this one. We ask for
6021          * LPFC_CMF_INTERVAL, however the actual time may
6022          * vary depending on system overhead.
6023          */
6024         ms = lpfc_calc_cmf_latency(phba);
6025
6026
6027         /* Immediately after we calculate the time since the last
6028          * timer interrupt, set the start time for the next
6029          * interrupt
6030          */
6031         ktime_get_real_ts64(&phba->cmf_latency);
6032
6033         phba->cmf_link_byte_count =
6034                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
6035
6036         /* Collect all the stats from the prior timer interval */
6037         total = 0;
6038         io_cnt = 0;
6039         lat = 0;
6040         rcv = 0;
6041         for_each_present_cpu(cpu) {
6042                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
6043                 total += atomic64_xchg(&cgs->total_bytes, 0);
6044                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
6045                 lat += atomic64_xchg(&cgs->rx_latency, 0);
6046                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
6047         }
6048
6049         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
6050          * returned from the last CMF_SYNC_WQE issued, from
6051          * cmf_last_sync_bw. This will be the target BW for
6052          * this next timer interval.
6053          */
6054         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
6055             phba->link_state != LPFC_LINK_DOWN &&
6056             phba->hba_flag & HBA_SETUP) {
6057                 mbpi = phba->cmf_last_sync_bw;
6058                 phba->cmf_last_sync_bw = 0;
6059                 extra = 0;
6060
6061                 /* Calculate any extra bytes needed to account for the
6062                  * timer accuracy. If we are less than LPFC_CMF_INTERVAL
6063                  * calculate the adjustment needed for total to reflect
6064                  * a full LPFC_CMF_INTERVAL.
6065                  */
6066                 if (ms && ms < LPFC_CMF_INTERVAL) {
6067                         cnt = div_u64(total, ms); /* bytes per ms */
6068                         cnt *= LPFC_CMF_INTERVAL; /* what total should be */
6069
6070                         /* If the timeout is scheduled to be shorter,
6071                          * this value may skew the data, so cap it at mbpi.
6072                          */
6073                         if ((phba->hba_flag & HBA_SHORT_CMF) && cnt > mbpi)
6074                                 cnt = mbpi;
6075
6076                         extra = cnt - total;
6077                 }
6078                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
6079         } else {
6080                 /* For Monitor mode or link down we want mbpi
6081                  * to be the full link speed
6082                  */
6083                 mbpi = phba->cmf_link_byte_count;
6084                 extra = 0;
6085         }
6086         phba->cmf_timer_cnt++;
6087
6088         if (io_cnt) {
6089                 /* Update congestion info buffer latency in us */
6090                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
6091                 atomic64_add(lat, &phba->cgn_latency_evt);
6092         }
6093         busy = atomic_xchg(&phba->cmf_busy, 0);
6094         max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
6095
6096         /* Calculate MBPI for the next timer interval */
6097         if (mbpi) {
6098                 if (mbpi > phba->cmf_link_byte_count ||
6099                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
6100                         mbpi = phba->cmf_link_byte_count;
6101
6102                 /* Change max_bytes_per_interval to what the prior
6103                  * CMF_SYNC_WQE cmpl indicated.
6104                  */
6105                 if (mbpi != phba->cmf_max_bytes_per_interval)
6106                         phba->cmf_max_bytes_per_interval = mbpi;
6107         }
6108
6109         /* Save rxmonitor information for debug */
6110         if (phba->rx_monitor) {
6111                 entry.total_bytes = total;
6112                 entry.cmf_bytes = total + extra;
6113                 entry.rcv_bytes = rcv;
6114                 entry.cmf_busy = busy;
6115                 entry.cmf_info = phba->cmf_active_info;
6116                 if (io_cnt) {
6117                         entry.avg_io_latency = div_u64(lat, io_cnt);
6118                         entry.avg_io_size = div_u64(rcv, io_cnt);
6119                 } else {
6120                         entry.avg_io_latency = 0;
6121                         entry.avg_io_size = 0;
6122                 }
6123                 entry.max_read_cnt = max_read;
6124                 entry.io_cnt = io_cnt;
6125                 entry.max_bytes_per_interval = mbpi;
6126                 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6127                         entry.timer_utilization = phba->cmf_last_ts;
6128                 else
6129                         entry.timer_utilization = ms;
6130                 entry.timer_interval = ms;
6131                 phba->cmf_last_ts = 0;
6132
6133                 lpfc_rx_monitor_record(phba->rx_monitor, &entry);
6134         }
6135
6136         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6137                 /* If Monitor mode, check if we are oversubscribed
6138                  * against the full line rate.
6139                  */
6140                 if (mbpi && total > mbpi)
6141                         atomic_inc(&phba->cgn_driver_evt_cnt);
6142         }
6143         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
6144
6145         /* Each minute save Fabric and Driver congestion information */
6146         lpfc_cgn_save_evt_cnt(phba);
6147
6148         phba->hba_flag &= ~HBA_SHORT_CMF;
6149
6150         /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6151          * minute, adjust our next timer interval, if needed, to ensure a
6152          * 1 minute granularity when we get the next timer interrupt.
6153          */
6154         if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6155                        phba->cgn_evt_timestamp)) {
6156                 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6157                                                   jiffies);
6158                 if (timer_interval <= 0)
6159                         timer_interval = LPFC_CMF_INTERVAL;
6160                 else
6161                         phba->hba_flag |= HBA_SHORT_CMF;
6162
6163                 /* If we adjust timer_interval, max_bytes_per_interval
6164                  * needs to be adjusted as well.
6165                  */
6166                 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6167                                                     timer_interval, 1000);
6168                 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6169                         phba->cmf_max_bytes_per_interval =
6170                                 phba->cmf_link_byte_count;
6171         }
6172
6173         /* Since total_bytes has already been zero'ed, its okay to unblock
6174          * after max_bytes_per_interval is setup.
6175          */
6176         if (atomic_xchg(&phba->cmf_bw_wait, 0))
6177                 queue_work(phba->wq, &phba->unblock_request_work);
6178
6179         /* SCSI IO is now unblocked */
6180         atomic_set(&phba->cmf_stop_io, 0);
6181
6182 skip:
6183         hrtimer_forward_now(timer,
6184                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
6185         return HRTIMER_RESTART;
6186 }
6187
6188 #define trunk_link_status(__idx)\
6189         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6190                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6191                 "Link up" : "Link down") : "NA"
6192 /* Did port __idx reported an error */
6193 #define trunk_port_fault(__idx)\
6194         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6195                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6196
6197 static void
6198 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6199                               struct lpfc_acqe_fc_la *acqe_fc)
6200 {
6201         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6202         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6203         u8 cnt = 0;
6204
6205         phba->sli4_hba.link_state.speed =
6206                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6207                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6208
6209         phba->sli4_hba.link_state.logical_speed =
6210                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6211         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6212         phba->fc_linkspeed =
6213                  lpfc_async_link_speed_to_read_top(
6214                                 phba,
6215                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6216
6217         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6218                 phba->trunk_link.link0.state =
6219                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6220                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6221                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6222                 cnt++;
6223         }
6224         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6225                 phba->trunk_link.link1.state =
6226                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6227                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6228                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6229                 cnt++;
6230         }
6231         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6232                 phba->trunk_link.link2.state =
6233                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6234                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6235                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6236                 cnt++;
6237         }
6238         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6239                 phba->trunk_link.link3.state =
6240                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6241                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6242                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6243                 cnt++;
6244         }
6245
6246         if (cnt)
6247                 phba->trunk_link.phy_lnk_speed =
6248                         phba->sli4_hba.link_state.logical_speed / (cnt * 1000);
6249         else
6250                 phba->trunk_link.phy_lnk_speed = LPFC_LINK_SPEED_UNKNOWN;
6251
6252         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6253                         "2910 Async FC Trunking Event - Speed:%d\n"
6254                         "\tLogical speed:%d "
6255                         "port0: %s port1: %s port2: %s port3: %s\n",
6256                         phba->sli4_hba.link_state.speed,
6257                         phba->sli4_hba.link_state.logical_speed,
6258                         trunk_link_status(0), trunk_link_status(1),
6259                         trunk_link_status(2), trunk_link_status(3));
6260
6261         if (phba->cmf_active_mode != LPFC_CFG_OFF)
6262                 lpfc_cmf_signal_init(phba);
6263
6264         if (port_fault)
6265                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6266                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
6267                                 /*
6268                                  * SLI-4: We have only 0xA error codes
6269                                  * defined as of now. print an appropriate
6270                                  * message in case driver needs to be updated.
6271                                  */
6272                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6273                                 "UNDEFINED. update driver." : trunk_errmsg[err],
6274                                 trunk_port_fault(0), trunk_port_fault(1),
6275                                 trunk_port_fault(2), trunk_port_fault(3));
6276 }
6277
6278
6279 /**
6280  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6281  * @phba: pointer to lpfc hba data structure.
6282  * @acqe_fc: pointer to the async fc completion queue entry.
6283  *
6284  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6285  * that the event was received and then issue a read_topology mailbox command so
6286  * that the rest of the driver will treat it the same as SLI3.
6287  **/
6288 static void
6289 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6290 {
6291         LPFC_MBOXQ_t *pmb;
6292         MAILBOX_t *mb;
6293         struct lpfc_mbx_read_top *la;
6294         char *log_level;
6295         int rc;
6296
6297         if (bf_get(lpfc_trailer_type, acqe_fc) !=
6298             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6299                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6300                                 "2895 Non FC link Event detected.(%d)\n",
6301                                 bf_get(lpfc_trailer_type, acqe_fc));
6302                 return;
6303         }
6304
6305         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6306             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6307                 lpfc_update_trunk_link_status(phba, acqe_fc);
6308                 return;
6309         }
6310
6311         /* Keep the link status for extra SLI4 state machine reference */
6312         phba->sli4_hba.link_state.speed =
6313                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6314                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6315         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6316         phba->sli4_hba.link_state.topology =
6317                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6318         phba->sli4_hba.link_state.status =
6319                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6320         phba->sli4_hba.link_state.type =
6321                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6322         phba->sli4_hba.link_state.number =
6323                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6324         phba->sli4_hba.link_state.fault =
6325                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
6326         phba->sli4_hba.link_state.link_status =
6327                                 bf_get(lpfc_acqe_fc_la_link_status, acqe_fc);
6328
6329         /*
6330          * Only select attention types need logical speed modification to what
6331          * was previously set.
6332          */
6333         if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_LINK_UP &&
6334             phba->sli4_hba.link_state.status < LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
6335                 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6336                     LPFC_FC_LA_TYPE_LINK_DOWN)
6337                         phba->sli4_hba.link_state.logical_speed = 0;
6338                 else if (!phba->sli4_hba.conf_trunk)
6339                         phba->sli4_hba.link_state.logical_speed =
6340                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6341         }
6342
6343         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6344                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6345                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6346                         "%dMbps Fault:x%x Link Status:x%x\n",
6347                         phba->sli4_hba.link_state.speed,
6348                         phba->sli4_hba.link_state.topology,
6349                         phba->sli4_hba.link_state.status,
6350                         phba->sli4_hba.link_state.type,
6351                         phba->sli4_hba.link_state.number,
6352                         phba->sli4_hba.link_state.logical_speed,
6353                         phba->sli4_hba.link_state.fault,
6354                         phba->sli4_hba.link_state.link_status);
6355
6356         /*
6357          * The following attention types are informational only, providing
6358          * further details about link status.  Overwrite the value of
6359          * link_state.status appropriately.  No further action is required.
6360          */
6361         if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
6362                 switch (phba->sli4_hba.link_state.status) {
6363                 case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
6364                         log_level = KERN_WARNING;
6365                         phba->sli4_hba.link_state.status =
6366                                         LPFC_FC_LA_TYPE_LINK_DOWN;
6367                         break;
6368                 case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
6369                         /*
6370                          * During bb credit recovery establishment, receiving
6371                          * this attention type is normal.  Link Up attention
6372                          * type is expected to occur before this informational
6373                          * attention type so keep the Link Up status.
6374                          */
6375                         log_level = KERN_INFO;
6376                         phba->sli4_hba.link_state.status =
6377                                         LPFC_FC_LA_TYPE_LINK_UP;
6378                         break;
6379                 default:
6380                         log_level = KERN_INFO;
6381                         break;
6382                 }
6383                 lpfc_log_msg(phba, log_level, LOG_SLI,
6384                              "2992 Async FC event - Informational Link "
6385                              "Attention Type x%x\n",
6386                              bf_get(lpfc_acqe_fc_la_att_type, acqe_fc));
6387                 return;
6388         }
6389
6390         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6391         if (!pmb) {
6392                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6393                                 "2897 The mboxq allocation failed\n");
6394                 return;
6395         }
6396         rc = lpfc_mbox_rsrc_prep(phba, pmb);
6397         if (rc) {
6398                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6399                                 "2898 The mboxq prep failed\n");
6400                 goto out_free_pmb;
6401         }
6402
6403         /* Cleanup any outstanding ELS commands */
6404         lpfc_els_flush_all_cmd(phba);
6405
6406         /* Block ELS IOCBs until we have done process link event */
6407         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6408
6409         /* Update link event statistics */
6410         phba->sli.slistat.link_event++;
6411
6412         /* Create lpfc_handle_latt mailbox command from link ACQE */
6413         lpfc_read_topology(phba, pmb, (struct lpfc_dmabuf *)pmb->ctx_buf);
6414         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6415         pmb->vport = phba->pport;
6416
6417         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6418                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6419
6420                 switch (phba->sli4_hba.link_state.status) {
6421                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6422                         phba->link_flag |= LS_MDS_LINK_DOWN;
6423                         break;
6424                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6425                         phba->link_flag |= LS_MDS_LOOPBACK;
6426                         break;
6427                 default:
6428                         break;
6429                 }
6430
6431                 /* Initialize completion status */
6432                 mb = &pmb->u.mb;
6433                 mb->mbxStatus = MBX_SUCCESS;
6434
6435                 /* Parse port fault information field */
6436                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6437
6438                 /* Parse and translate link attention fields */
6439                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6440                 la->eventTag = acqe_fc->event_tag;
6441
6442                 if (phba->sli4_hba.link_state.status ==
6443                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6444                         bf_set(lpfc_mbx_read_top_att_type, la,
6445                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
6446                 } else {
6447                         bf_set(lpfc_mbx_read_top_att_type, la,
6448                                LPFC_FC_LA_TYPE_LINK_DOWN);
6449                 }
6450                 /* Invoke the mailbox command callback function */
6451                 lpfc_mbx_cmpl_read_topology(phba, pmb);
6452
6453                 return;
6454         }
6455
6456         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6457         if (rc == MBX_NOT_FINISHED)
6458                 goto out_free_pmb;
6459         return;
6460
6461 out_free_pmb:
6462         lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
6463 }
6464
6465 /**
6466  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6467  * @phba: pointer to lpfc hba data structure.
6468  * @acqe_sli: pointer to the async SLI completion queue entry.
6469  *
6470  * This routine is to handle the SLI4 asynchronous SLI events.
6471  **/
6472 static void
6473 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6474 {
6475         char port_name;
6476         char message[128];
6477         uint8_t status;
6478         uint8_t evt_type;
6479         uint8_t operational = 0;
6480         struct temp_event temp_event_data;
6481         struct lpfc_acqe_misconfigured_event *misconfigured;
6482         struct lpfc_acqe_cgn_signal *cgn_signal;
6483         struct Scsi_Host  *shost;
6484         struct lpfc_vport **vports;
6485         int rc, i, cnt;
6486
6487         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6488
6489         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6490                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
6491                         "x%08x x%08x x%08x\n", evt_type,
6492                         acqe_sli->event_data1, acqe_sli->event_data2,
6493                         acqe_sli->event_data3, acqe_sli->trailer);
6494
6495         port_name = phba->Port[0];
6496         if (port_name == 0x00)
6497                 port_name = '?'; /* get port name is empty */
6498
6499         switch (evt_type) {
6500         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6501                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6502                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6503                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6504
6505                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6506                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6507                                 acqe_sli->event_data1, port_name);
6508
6509                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6510                 shost = lpfc_shost_from_vport(phba->pport);
6511                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6512                                           sizeof(temp_event_data),
6513                                           (char *)&temp_event_data,
6514                                           SCSI_NL_VID_TYPE_PCI
6515                                           | PCI_VENDOR_ID_EMULEX);
6516                 break;
6517         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6518                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6519                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6520                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6521
6522                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_LDS_EVENT,
6523                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6524                                 acqe_sli->event_data1, port_name);
6525
6526                 shost = lpfc_shost_from_vport(phba->pport);
6527                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6528                                           sizeof(temp_event_data),
6529                                           (char *)&temp_event_data,
6530                                           SCSI_NL_VID_TYPE_PCI
6531                                           | PCI_VENDOR_ID_EMULEX);
6532                 break;
6533         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6534                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6535                                         &acqe_sli->event_data1;
6536
6537                 /* fetch the status for this port */
6538                 switch (phba->sli4_hba.lnk_info.lnk_no) {
6539                 case LPFC_LINK_NUMBER_0:
6540                         status = bf_get(lpfc_sli_misconfigured_port0_state,
6541                                         &misconfigured->theEvent);
6542                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
6543                                         &misconfigured->theEvent);
6544                         break;
6545                 case LPFC_LINK_NUMBER_1:
6546                         status = bf_get(lpfc_sli_misconfigured_port1_state,
6547                                         &misconfigured->theEvent);
6548                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
6549                                         &misconfigured->theEvent);
6550                         break;
6551                 case LPFC_LINK_NUMBER_2:
6552                         status = bf_get(lpfc_sli_misconfigured_port2_state,
6553                                         &misconfigured->theEvent);
6554                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
6555                                         &misconfigured->theEvent);
6556                         break;
6557                 case LPFC_LINK_NUMBER_3:
6558                         status = bf_get(lpfc_sli_misconfigured_port3_state,
6559                                         &misconfigured->theEvent);
6560                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
6561                                         &misconfigured->theEvent);
6562                         break;
6563                 default:
6564                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6565                                         "3296 "
6566                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6567                                         "event: Invalid link %d",
6568                                         phba->sli4_hba.lnk_info.lnk_no);
6569                         return;
6570                 }
6571
6572                 /* Skip if optic state unchanged */
6573                 if (phba->sli4_hba.lnk_info.optic_state == status)
6574                         return;
6575
6576                 switch (status) {
6577                 case LPFC_SLI_EVENT_STATUS_VALID:
6578                         sprintf(message, "Physical Link is functional");
6579                         break;
6580                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6581                         sprintf(message, "Optics faulted/incorrectly "
6582                                 "installed/not installed - Reseat optics, "
6583                                 "if issue not resolved, replace.");
6584                         break;
6585                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6586                         sprintf(message,
6587                                 "Optics of two types installed - Remove one "
6588                                 "optic or install matching pair of optics.");
6589                         break;
6590                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6591                         sprintf(message, "Incompatible optics - Replace with "
6592                                 "compatible optics for card to function.");
6593                         break;
6594                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6595                         sprintf(message, "Unqualified optics - Replace with "
6596                                 "Avago optics for Warranty and Technical "
6597                                 "Support - Link is%s operational",
6598                                 (operational) ? " not" : "");
6599                         break;
6600                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6601                         sprintf(message, "Uncertified optics - Replace with "
6602                                 "Avago-certified optics to enable link "
6603                                 "operation - Link is%s operational",
6604                                 (operational) ? " not" : "");
6605                         break;
6606                 default:
6607                         /* firmware is reporting a status we don't know about */
6608                         sprintf(message, "Unknown event status x%02x", status);
6609                         break;
6610                 }
6611
6612                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6613                 rc = lpfc_sli4_read_config(phba);
6614                 if (rc) {
6615                         phba->lmt = 0;
6616                         lpfc_printf_log(phba, KERN_ERR,
6617                                         LOG_TRACE_EVENT,
6618                                         "3194 Unable to retrieve supported "
6619                                         "speeds, rc = 0x%x\n", rc);
6620                 }
6621                 rc = lpfc_sli4_refresh_params(phba);
6622                 if (rc) {
6623                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6624                                         "3174 Unable to update pls support, "
6625                                         "rc x%x\n", rc);
6626                 }
6627                 vports = lpfc_create_vport_work_array(phba);
6628                 if (vports != NULL) {
6629                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6630                                         i++) {
6631                                 shost = lpfc_shost_from_vport(vports[i]);
6632                                 lpfc_host_supported_speeds_set(shost);
6633                         }
6634                 }
6635                 lpfc_destroy_vport_work_array(phba, vports);
6636
6637                 phba->sli4_hba.lnk_info.optic_state = status;
6638                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6639                                 "3176 Port Name %c %s\n", port_name, message);
6640                 break;
6641         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6642                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6643                                 "3192 Remote DPort Test Initiated - "
6644                                 "Event Data1:x%08x Event Data2: x%08x\n",
6645                                 acqe_sli->event_data1, acqe_sli->event_data2);
6646                 break;
6647         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6648                 /* Call FW to obtain active parms */
6649                 lpfc_sli4_cgn_parm_chg_evt(phba);
6650                 break;
6651         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6652                 /* Misconfigured WWN. Reports that the SLI Port is configured
6653                  * to use FA-WWN, but the attached device doesn’t support it.
6654                  * Event Data1 - N.A, Event Data2 - N.A
6655                  * This event only happens on the physical port.
6656                  */
6657                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI | LOG_DISCOVERY,
6658                              "2699 Misconfigured FA-PWWN - Attached device "
6659                              "does not support FA-PWWN\n");
6660                 phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_FABRIC;
6661                 memset(phba->pport->fc_portname.u.wwn, 0,
6662                        sizeof(struct lpfc_name));
6663                 break;
6664         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6665                 /* EEPROM failure. No driver action is required */
6666                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6667                              "2518 EEPROM failure - "
6668                              "Event Data1: x%08x Event Data2: x%08x\n",
6669                              acqe_sli->event_data1, acqe_sli->event_data2);
6670                 break;
6671         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6672                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6673                         break;
6674                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6675                                         &acqe_sli->event_data1;
6676                 phba->cgn_acqe_cnt++;
6677
6678                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6679                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6680                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6681
6682                 /* no threshold for CMF, even 1 signal will trigger an event */
6683
6684                 /* Alarm overrides warning, so check that first */
6685                 if (cgn_signal->alarm_cnt) {
6686                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6687                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6688                                 atomic_add(cgn_signal->alarm_cnt,
6689                                            &phba->cgn_sync_alarm_cnt);
6690                         }
6691                 } else if (cnt) {
6692                         /* signal action needs to be taken */
6693                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6694                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6695                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6696                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6697                         }
6698                 }
6699                 break;
6700         case LPFC_SLI_EVENT_TYPE_RD_SIGNAL:
6701                 /* May be accompanied by a temperature event */
6702                 lpfc_printf_log(phba, KERN_INFO,
6703                                 LOG_SLI | LOG_LINK_EVENT | LOG_LDS_EVENT,
6704                                 "2902 Remote Degrade Signaling: x%08x x%08x "
6705                                 "x%08x\n",
6706                                 acqe_sli->event_data1, acqe_sli->event_data2,
6707                                 acqe_sli->event_data3);
6708                 break;
6709         default:
6710                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6711                                 "3193 Unrecognized SLI event, type: 0x%x",
6712                                 evt_type);
6713                 break;
6714         }
6715 }
6716
6717 /**
6718  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6719  * @vport: pointer to vport data structure.
6720  *
6721  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6722  * response to a CVL event.
6723  *
6724  * Return the pointer to the ndlp with the vport if successful, otherwise
6725  * return NULL.
6726  **/
6727 static struct lpfc_nodelist *
6728 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6729 {
6730         struct lpfc_nodelist *ndlp;
6731         struct Scsi_Host *shost;
6732         struct lpfc_hba *phba;
6733
6734         if (!vport)
6735                 return NULL;
6736         phba = vport->phba;
6737         if (!phba)
6738                 return NULL;
6739         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6740         if (!ndlp) {
6741                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6742                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6743                 if (!ndlp)
6744                         return NULL;
6745                 /* Set the node type */
6746                 ndlp->nlp_type |= NLP_FABRIC;
6747                 /* Put ndlp onto node list */
6748                 lpfc_enqueue_node(vport, ndlp);
6749         }
6750         if ((phba->pport->port_state < LPFC_FLOGI) &&
6751                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6752                 return NULL;
6753         /* If virtual link is not yet instantiated ignore CVL */
6754         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6755                 && (vport->port_state != LPFC_VPORT_FAILED))
6756                 return NULL;
6757         shost = lpfc_shost_from_vport(vport);
6758         if (!shost)
6759                 return NULL;
6760         lpfc_linkdown_port(vport);
6761         lpfc_cleanup_pending_mbox(vport);
6762         spin_lock_irq(shost->host_lock);
6763         vport->fc_flag |= FC_VPORT_CVL_RCVD;
6764         spin_unlock_irq(shost->host_lock);
6765
6766         return ndlp;
6767 }
6768
6769 /**
6770  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6771  * @phba: pointer to lpfc hba data structure.
6772  *
6773  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6774  * response to a FCF dead event.
6775  **/
6776 static void
6777 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6778 {
6779         struct lpfc_vport **vports;
6780         int i;
6781
6782         vports = lpfc_create_vport_work_array(phba);
6783         if (vports)
6784                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6785                         lpfc_sli4_perform_vport_cvl(vports[i]);
6786         lpfc_destroy_vport_work_array(phba, vports);
6787 }
6788
6789 /**
6790  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6791  * @phba: pointer to lpfc hba data structure.
6792  * @acqe_fip: pointer to the async fcoe completion queue entry.
6793  *
6794  * This routine is to handle the SLI4 asynchronous fcoe event.
6795  **/
6796 static void
6797 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6798                         struct lpfc_acqe_fip *acqe_fip)
6799 {
6800         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6801         int rc;
6802         struct lpfc_vport *vport;
6803         struct lpfc_nodelist *ndlp;
6804         int active_vlink_present;
6805         struct lpfc_vport **vports;
6806         int i;
6807
6808         phba->fc_eventTag = acqe_fip->event_tag;
6809         phba->fcoe_eventtag = acqe_fip->event_tag;
6810         switch (event_type) {
6811         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6812         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6813                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6814                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6815                                         "2546 New FCF event, evt_tag:x%x, "
6816                                         "index:x%x\n",
6817                                         acqe_fip->event_tag,
6818                                         acqe_fip->index);
6819                 else
6820                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6821                                         LOG_DISCOVERY,
6822                                         "2788 FCF param modified event, "
6823                                         "evt_tag:x%x, index:x%x\n",
6824                                         acqe_fip->event_tag,
6825                                         acqe_fip->index);
6826                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6827                         /*
6828                          * During period of FCF discovery, read the FCF
6829                          * table record indexed by the event to update
6830                          * FCF roundrobin failover eligible FCF bmask.
6831                          */
6832                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6833                                         LOG_DISCOVERY,
6834                                         "2779 Read FCF (x%x) for updating "
6835                                         "roundrobin FCF failover bmask\n",
6836                                         acqe_fip->index);
6837                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6838                 }
6839
6840                 /* If the FCF discovery is in progress, do nothing. */
6841                 spin_lock_irq(&phba->hbalock);
6842                 if (phba->hba_flag & FCF_TS_INPROG) {
6843                         spin_unlock_irq(&phba->hbalock);
6844                         break;
6845                 }
6846                 /* If fast FCF failover rescan event is pending, do nothing */
6847                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6848                         spin_unlock_irq(&phba->hbalock);
6849                         break;
6850                 }
6851
6852                 /* If the FCF has been in discovered state, do nothing. */
6853                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6854                         spin_unlock_irq(&phba->hbalock);
6855                         break;
6856                 }
6857                 spin_unlock_irq(&phba->hbalock);
6858
6859                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6860                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6861                                 "2770 Start FCF table scan per async FCF "
6862                                 "event, evt_tag:x%x, index:x%x\n",
6863                                 acqe_fip->event_tag, acqe_fip->index);
6864                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6865                                                      LPFC_FCOE_FCF_GET_FIRST);
6866                 if (rc)
6867                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6868                                         "2547 Issue FCF scan read FCF mailbox "
6869                                         "command failed (x%x)\n", rc);
6870                 break;
6871
6872         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6873                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6874                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6875                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6876                                 acqe_fip->event_tag);
6877                 break;
6878
6879         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6880                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6881                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6882                                 "2549 FCF (x%x) disconnected from network, "
6883                                  "tag:x%x\n", acqe_fip->index,
6884                                  acqe_fip->event_tag);
6885                 /*
6886                  * If we are in the middle of FCF failover process, clear
6887                  * the corresponding FCF bit in the roundrobin bitmap.
6888                  */
6889                 spin_lock_irq(&phba->hbalock);
6890                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6891                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6892                         spin_unlock_irq(&phba->hbalock);
6893                         /* Update FLOGI FCF failover eligible FCF bmask */
6894                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6895                         break;
6896                 }
6897                 spin_unlock_irq(&phba->hbalock);
6898
6899                 /* If the event is not for currently used fcf do nothing */
6900                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6901                         break;
6902
6903                 /*
6904                  * Otherwise, request the port to rediscover the entire FCF
6905                  * table for a fast recovery from case that the current FCF
6906                  * is no longer valid as we are not in the middle of FCF
6907                  * failover process already.
6908                  */
6909                 spin_lock_irq(&phba->hbalock);
6910                 /* Mark the fast failover process in progress */
6911                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6912                 spin_unlock_irq(&phba->hbalock);
6913
6914                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6915                                 "2771 Start FCF fast failover process due to "
6916                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6917                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6918                 rc = lpfc_sli4_redisc_fcf_table(phba);
6919                 if (rc) {
6920                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6921                                         LOG_TRACE_EVENT,
6922                                         "2772 Issue FCF rediscover mailbox "
6923                                         "command failed, fail through to FCF "
6924                                         "dead event\n");
6925                         spin_lock_irq(&phba->hbalock);
6926                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6927                         spin_unlock_irq(&phba->hbalock);
6928                         /*
6929                          * Last resort will fail over by treating this
6930                          * as a link down to FCF registration.
6931                          */
6932                         lpfc_sli4_fcf_dead_failthrough(phba);
6933                 } else {
6934                         /* Reset FCF roundrobin bmask for new discovery */
6935                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6936                         /*
6937                          * Handling fast FCF failover to a DEAD FCF event is
6938                          * considered equalivant to receiving CVL to all vports.
6939                          */
6940                         lpfc_sli4_perform_all_vport_cvl(phba);
6941                 }
6942                 break;
6943         case LPFC_FIP_EVENT_TYPE_CVL:
6944                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6945                 lpfc_printf_log(phba, KERN_ERR,
6946                                 LOG_TRACE_EVENT,
6947                         "2718 Clear Virtual Link Received for VPI 0x%x"
6948                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6949
6950                 vport = lpfc_find_vport_by_vpid(phba,
6951                                                 acqe_fip->index);
6952                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6953                 if (!ndlp)
6954                         break;
6955                 active_vlink_present = 0;
6956
6957                 vports = lpfc_create_vport_work_array(phba);
6958                 if (vports) {
6959                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6960                                         i++) {
6961                                 if ((!(vports[i]->fc_flag &
6962                                         FC_VPORT_CVL_RCVD)) &&
6963                                         (vports[i]->port_state > LPFC_FDISC)) {
6964                                         active_vlink_present = 1;
6965                                         break;
6966                                 }
6967                         }
6968                         lpfc_destroy_vport_work_array(phba, vports);
6969                 }
6970
6971                 /*
6972                  * Don't re-instantiate if vport is marked for deletion.
6973                  * If we are here first then vport_delete is going to wait
6974                  * for discovery to complete.
6975                  */
6976                 if (!(vport->load_flag & FC_UNLOADING) &&
6977                                         active_vlink_present) {
6978                         /*
6979                          * If there are other active VLinks present,
6980                          * re-instantiate the Vlink using FDISC.
6981                          */
6982                         mod_timer(&ndlp->nlp_delayfunc,
6983                                   jiffies + msecs_to_jiffies(1000));
6984                         spin_lock_irq(&ndlp->lock);
6985                         ndlp->nlp_flag |= NLP_DELAY_TMO;
6986                         spin_unlock_irq(&ndlp->lock);
6987                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6988                         vport->port_state = LPFC_FDISC;
6989                 } else {
6990                         /*
6991                          * Otherwise, we request port to rediscover
6992                          * the entire FCF table for a fast recovery
6993                          * from possible case that the current FCF
6994                          * is no longer valid if we are not already
6995                          * in the FCF failover process.
6996                          */
6997                         spin_lock_irq(&phba->hbalock);
6998                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6999                                 spin_unlock_irq(&phba->hbalock);
7000                                 break;
7001                         }
7002                         /* Mark the fast failover process in progress */
7003                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
7004                         spin_unlock_irq(&phba->hbalock);
7005                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
7006                                         LOG_DISCOVERY,
7007                                         "2773 Start FCF failover per CVL, "
7008                                         "evt_tag:x%x\n", acqe_fip->event_tag);
7009                         rc = lpfc_sli4_redisc_fcf_table(phba);
7010                         if (rc) {
7011                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
7012                                                 LOG_TRACE_EVENT,
7013                                                 "2774 Issue FCF rediscover "
7014                                                 "mailbox command failed, "
7015                                                 "through to CVL event\n");
7016                                 spin_lock_irq(&phba->hbalock);
7017                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
7018                                 spin_unlock_irq(&phba->hbalock);
7019                                 /*
7020                                  * Last resort will be re-try on the
7021                                  * the current registered FCF entry.
7022                                  */
7023                                 lpfc_retry_pport_discovery(phba);
7024                         } else
7025                                 /*
7026                                  * Reset FCF roundrobin bmask for new
7027                                  * discovery.
7028                                  */
7029                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
7030                 }
7031                 break;
7032         default:
7033                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7034                                 "0288 Unknown FCoE event type 0x%x event tag "
7035                                 "0x%x\n", event_type, acqe_fip->event_tag);
7036                 break;
7037         }
7038 }
7039
7040 /**
7041  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
7042  * @phba: pointer to lpfc hba data structure.
7043  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
7044  *
7045  * This routine is to handle the SLI4 asynchronous dcbx event.
7046  **/
7047 static void
7048 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
7049                          struct lpfc_acqe_dcbx *acqe_dcbx)
7050 {
7051         phba->fc_eventTag = acqe_dcbx->event_tag;
7052         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7053                         "0290 The SLI4 DCBX asynchronous event is not "
7054                         "handled yet\n");
7055 }
7056
7057 /**
7058  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
7059  * @phba: pointer to lpfc hba data structure.
7060  * @acqe_grp5: pointer to the async grp5 completion queue entry.
7061  *
7062  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
7063  * is an asynchronous notified of a logical link speed change.  The Port
7064  * reports the logical link speed in units of 10Mbps.
7065  **/
7066 static void
7067 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
7068                          struct lpfc_acqe_grp5 *acqe_grp5)
7069 {
7070         uint16_t prev_ll_spd;
7071
7072         phba->fc_eventTag = acqe_grp5->event_tag;
7073         phba->fcoe_eventtag = acqe_grp5->event_tag;
7074         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
7075         phba->sli4_hba.link_state.logical_speed =
7076                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
7077         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7078                         "2789 GRP5 Async Event: Updating logical link speed "
7079                         "from %dMbps to %dMbps\n", prev_ll_spd,
7080                         phba->sli4_hba.link_state.logical_speed);
7081 }
7082
7083 /**
7084  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
7085  * @phba: pointer to lpfc hba data structure.
7086  *
7087  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
7088  * is an asynchronous notification of a request to reset CM stats.
7089  **/
7090 static void
7091 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
7092 {
7093         if (!phba->cgn_i)
7094                 return;
7095         lpfc_init_congestion_stat(phba);
7096 }
7097
7098 /**
7099  * lpfc_cgn_params_val - Validate FW congestion parameters.
7100  * @phba: pointer to lpfc hba data structure.
7101  * @p_cfg_param: pointer to FW provided congestion parameters.
7102  *
7103  * This routine validates the congestion parameters passed
7104  * by the FW to the driver via an ACQE event.
7105  **/
7106 static void
7107 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
7108 {
7109         spin_lock_irq(&phba->hbalock);
7110
7111         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
7112                              LPFC_CFG_MONITOR)) {
7113                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
7114                                 "6225 CMF mode param out of range: %d\n",
7115                                  p_cfg_param->cgn_param_mode);
7116                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
7117         }
7118
7119         spin_unlock_irq(&phba->hbalock);
7120 }
7121
7122 static const char * const lpfc_cmf_mode_to_str[] = {
7123         "OFF",
7124         "MANAGED",
7125         "MONITOR",
7126 };
7127
7128 /**
7129  * lpfc_cgn_params_parse - Process a FW cong parm change event
7130  * @phba: pointer to lpfc hba data structure.
7131  * @p_cgn_param: pointer to a data buffer with the FW cong params.
7132  * @len: the size of pdata in bytes.
7133  *
7134  * This routine validates the congestion management buffer signature
7135  * from the FW, validates the contents and makes corrections for
7136  * valid, in-range values.  If the signature magic is correct and
7137  * after parameter validation, the contents are copied to the driver's
7138  * @phba structure. If the magic is incorrect, an error message is
7139  * logged.
7140  **/
7141 static void
7142 lpfc_cgn_params_parse(struct lpfc_hba *phba,
7143                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7144 {
7145         struct lpfc_cgn_info *cp;
7146         uint32_t crc, oldmode;
7147         char acr_string[4] = {0};
7148
7149         /* Make sure the FW has encoded the correct magic number to
7150          * validate the congestion parameter in FW memory.
7151          */
7152         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7153                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7154                                 "4668 FW cgn parm buffer data: "
7155                                 "magic 0x%x version %d mode %d "
7156                                 "level0 %d level1 %d "
7157                                 "level2 %d byte13 %d "
7158                                 "byte14 %d byte15 %d "
7159                                 "byte11 %d byte12 %d activeMode %d\n",
7160                                 p_cgn_param->cgn_param_magic,
7161                                 p_cgn_param->cgn_param_version,
7162                                 p_cgn_param->cgn_param_mode,
7163                                 p_cgn_param->cgn_param_level0,
7164                                 p_cgn_param->cgn_param_level1,
7165                                 p_cgn_param->cgn_param_level2,
7166                                 p_cgn_param->byte13,
7167                                 p_cgn_param->byte14,
7168                                 p_cgn_param->byte15,
7169                                 p_cgn_param->byte11,
7170                                 p_cgn_param->byte12,
7171                                 phba->cmf_active_mode);
7172
7173                 oldmode = phba->cmf_active_mode;
7174
7175                 /* Any parameters out of range are corrected to defaults
7176                  * by this routine.  No need to fail.
7177                  */
7178                 lpfc_cgn_params_val(phba, p_cgn_param);
7179
7180                 /* Parameters are verified, move them into driver storage */
7181                 spin_lock_irq(&phba->hbalock);
7182                 memcpy(&phba->cgn_p, p_cgn_param,
7183                        sizeof(struct lpfc_cgn_param));
7184
7185                 /* Update parameters in congestion info buffer now */
7186                 if (phba->cgn_i) {
7187                         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7188                         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7189                         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7190                         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7191                         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7192                         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
7193                                                   LPFC_CGN_CRC32_SEED);
7194                         cp->cgn_info_crc = cpu_to_le32(crc);
7195                 }
7196                 spin_unlock_irq(&phba->hbalock);
7197
7198                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7199
7200                 switch (oldmode) {
7201                 case LPFC_CFG_OFF:
7202                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7203                                 /* Turning CMF on */
7204                                 lpfc_cmf_start(phba);
7205
7206                                 if (phba->link_state >= LPFC_LINK_UP) {
7207                                         phba->cgn_reg_fpin =
7208                                                 phba->cgn_init_reg_fpin;
7209                                         phba->cgn_reg_signal =
7210                                                 phba->cgn_init_reg_signal;
7211                                         lpfc_issue_els_edc(phba->pport, 0);
7212                                 }
7213                         }
7214                         break;
7215                 case LPFC_CFG_MANAGED:
7216                         switch (phba->cgn_p.cgn_param_mode) {
7217                         case LPFC_CFG_OFF:
7218                                 /* Turning CMF off */
7219                                 lpfc_cmf_stop(phba);
7220                                 if (phba->link_state >= LPFC_LINK_UP)
7221                                         lpfc_issue_els_edc(phba->pport, 0);
7222                                 break;
7223                         case LPFC_CFG_MONITOR:
7224                                 phba->cmf_max_bytes_per_interval =
7225                                         phba->cmf_link_byte_count;
7226
7227                                 /* Resume blocked IO - unblock on workqueue */
7228                                 queue_work(phba->wq,
7229                                            &phba->unblock_request_work);
7230                                 break;
7231                         }
7232                         break;
7233                 case LPFC_CFG_MONITOR:
7234                         switch (phba->cgn_p.cgn_param_mode) {
7235                         case LPFC_CFG_OFF:
7236                                 /* Turning CMF off */
7237                                 lpfc_cmf_stop(phba);
7238                                 if (phba->link_state >= LPFC_LINK_UP)
7239                                         lpfc_issue_els_edc(phba->pport, 0);
7240                                 break;
7241                         case LPFC_CFG_MANAGED:
7242                                 lpfc_cmf_signal_init(phba);
7243                                 break;
7244                         }
7245                         break;
7246                 }
7247                 if (oldmode != LPFC_CFG_OFF ||
7248                     oldmode != phba->cgn_p.cgn_param_mode) {
7249                         if (phba->cgn_p.cgn_param_mode == LPFC_CFG_MANAGED)
7250                                 scnprintf(acr_string, sizeof(acr_string), "%u",
7251                                           phba->cgn_p.cgn_param_level0);
7252                         else
7253                                 scnprintf(acr_string, sizeof(acr_string), "NA");
7254
7255                         dev_info(&phba->pcidev->dev, "%d: "
7256                                  "4663 CMF: Mode %s acr %s\n",
7257                                  phba->brd_no,
7258                                  lpfc_cmf_mode_to_str
7259                                  [phba->cgn_p.cgn_param_mode],
7260                                  acr_string);
7261                 }
7262         } else {
7263                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7264                                 "4669 FW cgn parm buf wrong magic 0x%x "
7265                                 "version %d\n", p_cgn_param->cgn_param_magic,
7266                                 p_cgn_param->cgn_param_version);
7267         }
7268 }
7269
7270 /**
7271  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7272  * @phba: pointer to lpfc hba data structure.
7273  *
7274  * This routine issues a read_object mailbox command to
7275  * get the congestion management parameters from the FW
7276  * parses it and updates the driver maintained values.
7277  *
7278  * Returns
7279  *  0     if the object was empty
7280  *  -Eval if an error was encountered
7281  *  Count if bytes were read from object
7282  **/
7283 int
7284 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7285 {
7286         int ret = 0;
7287         struct lpfc_cgn_param *p_cgn_param = NULL;
7288         u32 *pdata = NULL;
7289         u32 len = 0;
7290
7291         /* Find out if the FW has a new set of congestion parameters. */
7292         len = sizeof(struct lpfc_cgn_param);
7293         pdata = kzalloc(len, GFP_KERNEL);
7294         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7295                                pdata, len);
7296
7297         /* 0 means no data.  A negative means error.  A positive means
7298          * bytes were copied.
7299          */
7300         if (!ret) {
7301                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7302                                 "4670 CGN RD OBJ returns no data\n");
7303                 goto rd_obj_err;
7304         } else if (ret < 0) {
7305                 /* Some error.  Just exit and return it to the caller.*/
7306                 goto rd_obj_err;
7307         }
7308
7309         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7310                         "6234 READ CGN PARAMS Successful %d\n", len);
7311
7312         /* Parse data pointer over len and update the phba congestion
7313          * parameters with values passed back.  The receive rate values
7314          * may have been altered in FW, but take no action here.
7315          */
7316         p_cgn_param = (struct lpfc_cgn_param *)pdata;
7317         lpfc_cgn_params_parse(phba, p_cgn_param, len);
7318
7319  rd_obj_err:
7320         kfree(pdata);
7321         return ret;
7322 }
7323
7324 /**
7325  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7326  * @phba: pointer to lpfc hba data structure.
7327  *
7328  * The FW generated Async ACQE SLI event calls this routine when
7329  * the event type is an SLI Internal Port Event and the Event Code
7330  * indicates a change to the FW maintained congestion parameters.
7331  *
7332  * This routine executes a Read_Object mailbox call to obtain the
7333  * current congestion parameters maintained in FW and corrects
7334  * the driver's active congestion parameters.
7335  *
7336  * The acqe event is not passed because there is no further data
7337  * required.
7338  *
7339  * Returns nonzero error if event processing encountered an error.
7340  * Zero otherwise for success.
7341  **/
7342 static int
7343 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7344 {
7345         int ret = 0;
7346
7347         if (!phba->sli4_hba.pc_sli4_params.cmf) {
7348                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7349                                 "4664 Cgn Evt when E2E off. Drop event\n");
7350                 return -EACCES;
7351         }
7352
7353         /* If the event is claiming an empty object, it's ok.  A write
7354          * could have cleared it.  Only error is a negative return
7355          * status.
7356          */
7357         ret = lpfc_sli4_cgn_params_read(phba);
7358         if (ret < 0) {
7359                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7360                                 "4667 Error reading Cgn Params (%d)\n",
7361                                 ret);
7362         } else if (!ret) {
7363                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7364                                 "4673 CGN Event empty object.\n");
7365         }
7366         return ret;
7367 }
7368
7369 /**
7370  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7371  * @phba: pointer to lpfc hba data structure.
7372  *
7373  * This routine is invoked by the worker thread to process all the pending
7374  * SLI4 asynchronous events.
7375  **/
7376 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7377 {
7378         struct lpfc_cq_event *cq_event;
7379         unsigned long iflags;
7380
7381         /* First, declare the async event has been handled */
7382         spin_lock_irqsave(&phba->hbalock, iflags);
7383         phba->hba_flag &= ~ASYNC_EVENT;
7384         spin_unlock_irqrestore(&phba->hbalock, iflags);
7385
7386         /* Now, handle all the async events */
7387         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7388         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7389                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7390                                  cq_event, struct lpfc_cq_event, list);
7391                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7392                                        iflags);
7393
7394                 /* Process the asynchronous event */
7395                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7396                 case LPFC_TRAILER_CODE_LINK:
7397                         lpfc_sli4_async_link_evt(phba,
7398                                                  &cq_event->cqe.acqe_link);
7399                         break;
7400                 case LPFC_TRAILER_CODE_FCOE:
7401                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7402                         break;
7403                 case LPFC_TRAILER_CODE_DCBX:
7404                         lpfc_sli4_async_dcbx_evt(phba,
7405                                                  &cq_event->cqe.acqe_dcbx);
7406                         break;
7407                 case LPFC_TRAILER_CODE_GRP5:
7408                         lpfc_sli4_async_grp5_evt(phba,
7409                                                  &cq_event->cqe.acqe_grp5);
7410                         break;
7411                 case LPFC_TRAILER_CODE_FC:
7412                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7413                         break;
7414                 case LPFC_TRAILER_CODE_SLI:
7415                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7416                         break;
7417                 case LPFC_TRAILER_CODE_CMSTAT:
7418                         lpfc_sli4_async_cmstat_evt(phba);
7419                         break;
7420                 default:
7421                         lpfc_printf_log(phba, KERN_ERR,
7422                                         LOG_TRACE_EVENT,
7423                                         "1804 Invalid asynchronous event code: "
7424                                         "x%x\n", bf_get(lpfc_trailer_code,
7425                                         &cq_event->cqe.mcqe_cmpl));
7426                         break;
7427                 }
7428
7429                 /* Free the completion event processed to the free pool */
7430                 lpfc_sli4_cq_event_release(phba, cq_event);
7431                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7432         }
7433         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7434 }
7435
7436 /**
7437  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7438  * @phba: pointer to lpfc hba data structure.
7439  *
7440  * This routine is invoked by the worker thread to process FCF table
7441  * rediscovery pending completion event.
7442  **/
7443 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7444 {
7445         int rc;
7446
7447         spin_lock_irq(&phba->hbalock);
7448         /* Clear FCF rediscovery timeout event */
7449         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7450         /* Clear driver fast failover FCF record flag */
7451         phba->fcf.failover_rec.flag = 0;
7452         /* Set state for FCF fast failover */
7453         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7454         spin_unlock_irq(&phba->hbalock);
7455
7456         /* Scan FCF table from the first entry to re-discover SAN */
7457         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7458                         "2777 Start post-quiescent FCF table scan\n");
7459         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7460         if (rc)
7461                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7462                                 "2747 Issue FCF scan read FCF mailbox "
7463                                 "command failed 0x%x\n", rc);
7464 }
7465
7466 /**
7467  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7468  * @phba: pointer to lpfc hba data structure.
7469  * @dev_grp: The HBA PCI-Device group number.
7470  *
7471  * This routine is invoked to set up the per HBA PCI-Device group function
7472  * API jump table entries.
7473  *
7474  * Return: 0 if success, otherwise -ENODEV
7475  **/
7476 int
7477 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7478 {
7479         int rc;
7480
7481         /* Set up lpfc PCI-device group */
7482         phba->pci_dev_grp = dev_grp;
7483
7484         /* The LPFC_PCI_DEV_OC uses SLI4 */
7485         if (dev_grp == LPFC_PCI_DEV_OC)
7486                 phba->sli_rev = LPFC_SLI_REV4;
7487
7488         /* Set up device INIT API function jump table */
7489         rc = lpfc_init_api_table_setup(phba, dev_grp);
7490         if (rc)
7491                 return -ENODEV;
7492         /* Set up SCSI API function jump table */
7493         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7494         if (rc)
7495                 return -ENODEV;
7496         /* Set up SLI API function jump table */
7497         rc = lpfc_sli_api_table_setup(phba, dev_grp);
7498         if (rc)
7499                 return -ENODEV;
7500         /* Set up MBOX API function jump table */
7501         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7502         if (rc)
7503                 return -ENODEV;
7504
7505         return 0;
7506 }
7507
7508 /**
7509  * lpfc_log_intr_mode - Log the active interrupt mode
7510  * @phba: pointer to lpfc hba data structure.
7511  * @intr_mode: active interrupt mode adopted.
7512  *
7513  * This routine it invoked to log the currently used active interrupt mode
7514  * to the device.
7515  **/
7516 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7517 {
7518         switch (intr_mode) {
7519         case 0:
7520                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7521                                 "0470 Enable INTx interrupt mode.\n");
7522                 break;
7523         case 1:
7524                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7525                                 "0481 Enabled MSI interrupt mode.\n");
7526                 break;
7527         case 2:
7528                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7529                                 "0480 Enabled MSI-X interrupt mode.\n");
7530                 break;
7531         default:
7532                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7533                                 "0482 Illegal interrupt mode.\n");
7534                 break;
7535         }
7536         return;
7537 }
7538
7539 /**
7540  * lpfc_enable_pci_dev - Enable a generic PCI device.
7541  * @phba: pointer to lpfc hba data structure.
7542  *
7543  * This routine is invoked to enable the PCI device that is common to all
7544  * PCI devices.
7545  *
7546  * Return codes
7547  *      0 - successful
7548  *      other values - error
7549  **/
7550 static int
7551 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7552 {
7553         struct pci_dev *pdev;
7554
7555         /* Obtain PCI device reference */
7556         if (!phba->pcidev)
7557                 goto out_error;
7558         else
7559                 pdev = phba->pcidev;
7560         /* Enable PCI device */
7561         if (pci_enable_device_mem(pdev))
7562                 goto out_error;
7563         /* Request PCI resource for the device */
7564         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7565                 goto out_disable_device;
7566         /* Set up device as PCI master and save state for EEH */
7567         pci_set_master(pdev);
7568         pci_try_set_mwi(pdev);
7569         pci_save_state(pdev);
7570
7571         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7572         if (pci_is_pcie(pdev))
7573                 pdev->needs_freset = 1;
7574
7575         return 0;
7576
7577 out_disable_device:
7578         pci_disable_device(pdev);
7579 out_error:
7580         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7581                         "1401 Failed to enable pci device\n");
7582         return -ENODEV;
7583 }
7584
7585 /**
7586  * lpfc_disable_pci_dev - Disable a generic PCI device.
7587  * @phba: pointer to lpfc hba data structure.
7588  *
7589  * This routine is invoked to disable the PCI device that is common to all
7590  * PCI devices.
7591  **/
7592 static void
7593 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7594 {
7595         struct pci_dev *pdev;
7596
7597         /* Obtain PCI device reference */
7598         if (!phba->pcidev)
7599                 return;
7600         else
7601                 pdev = phba->pcidev;
7602         /* Release PCI resource and disable PCI device */
7603         pci_release_mem_regions(pdev);
7604         pci_disable_device(pdev);
7605
7606         return;
7607 }
7608
7609 /**
7610  * lpfc_reset_hba - Reset a hba
7611  * @phba: pointer to lpfc hba data structure.
7612  *
7613  * This routine is invoked to reset a hba device. It brings the HBA
7614  * offline, performs a board restart, and then brings the board back
7615  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7616  * on outstanding mailbox commands.
7617  **/
7618 void
7619 lpfc_reset_hba(struct lpfc_hba *phba)
7620 {
7621         /* If resets are disabled then set error state and return. */
7622         if (!phba->cfg_enable_hba_reset) {
7623                 phba->link_state = LPFC_HBA_ERROR;
7624                 return;
7625         }
7626
7627         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7628         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7629                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7630         } else {
7631                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7632                 lpfc_sli_flush_io_rings(phba);
7633         }
7634         lpfc_offline(phba);
7635         lpfc_sli_brdrestart(phba);
7636         lpfc_online(phba);
7637         lpfc_unblock_mgmt_io(phba);
7638 }
7639
7640 /**
7641  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7642  * @phba: pointer to lpfc hba data structure.
7643  *
7644  * This function enables the PCI SR-IOV virtual functions to a physical
7645  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7646  * enable the number of virtual functions to the physical function. As
7647  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7648  * API call does not considered as an error condition for most of the device.
7649  **/
7650 uint16_t
7651 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7652 {
7653         struct pci_dev *pdev = phba->pcidev;
7654         uint16_t nr_virtfn;
7655         int pos;
7656
7657         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7658         if (pos == 0)
7659                 return 0;
7660
7661         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7662         return nr_virtfn;
7663 }
7664
7665 /**
7666  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7667  * @phba: pointer to lpfc hba data structure.
7668  * @nr_vfn: number of virtual functions to be enabled.
7669  *
7670  * This function enables the PCI SR-IOV virtual functions to a physical
7671  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7672  * enable the number of virtual functions to the physical function. As
7673  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7674  * API call does not considered as an error condition for most of the device.
7675  **/
7676 int
7677 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7678 {
7679         struct pci_dev *pdev = phba->pcidev;
7680         uint16_t max_nr_vfn;
7681         int rc;
7682
7683         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7684         if (nr_vfn > max_nr_vfn) {
7685                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7686                                 "3057 Requested vfs (%d) greater than "
7687                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7688                 return -EINVAL;
7689         }
7690
7691         rc = pci_enable_sriov(pdev, nr_vfn);
7692         if (rc) {
7693                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7694                                 "2806 Failed to enable sriov on this device "
7695                                 "with vfn number nr_vf:%d, rc:%d\n",
7696                                 nr_vfn, rc);
7697         } else
7698                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7699                                 "2807 Successful enable sriov on this device "
7700                                 "with vfn number nr_vf:%d\n", nr_vfn);
7701         return rc;
7702 }
7703
7704 static void
7705 lpfc_unblock_requests_work(struct work_struct *work)
7706 {
7707         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7708                                              unblock_request_work);
7709
7710         lpfc_unblock_requests(phba);
7711 }
7712
7713 /**
7714  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7715  * @phba: pointer to lpfc hba data structure.
7716  *
7717  * This routine is invoked to set up the driver internal resources before the
7718  * device specific resource setup to support the HBA device it attached to.
7719  *
7720  * Return codes
7721  *      0 - successful
7722  *      other values - error
7723  **/
7724 static int
7725 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7726 {
7727         struct lpfc_sli *psli = &phba->sli;
7728
7729         /*
7730          * Driver resources common to all SLI revisions
7731          */
7732         atomic_set(&phba->fast_event_count, 0);
7733         atomic_set(&phba->dbg_log_idx, 0);
7734         atomic_set(&phba->dbg_log_cnt, 0);
7735         atomic_set(&phba->dbg_log_dmping, 0);
7736         spin_lock_init(&phba->hbalock);
7737
7738         /* Initialize port_list spinlock */
7739         spin_lock_init(&phba->port_list_lock);
7740         INIT_LIST_HEAD(&phba->port_list);
7741
7742         INIT_LIST_HEAD(&phba->work_list);
7743
7744         /* Initialize the wait queue head for the kernel thread */
7745         init_waitqueue_head(&phba->work_waitq);
7746
7747         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7748                         "1403 Protocols supported %s %s %s\n",
7749                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7750                                 "SCSI" : " "),
7751                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7752                                 "NVME" : " "),
7753                         (phba->nvmet_support ? "NVMET" : " "));
7754
7755         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7756         spin_lock_init(&phba->scsi_buf_list_get_lock);
7757         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7758         spin_lock_init(&phba->scsi_buf_list_put_lock);
7759         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7760
7761         /* Initialize the fabric iocb list */
7762         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7763
7764         /* Initialize list to save ELS buffers */
7765         INIT_LIST_HEAD(&phba->elsbuf);
7766
7767         /* Initialize FCF connection rec list */
7768         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7769
7770         /* Initialize OAS configuration list */
7771         spin_lock_init(&phba->devicelock);
7772         INIT_LIST_HEAD(&phba->luns);
7773
7774         /* MBOX heartbeat timer */
7775         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7776         /* Fabric block timer */
7777         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7778         /* EA polling mode timer */
7779         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7780         /* Heartbeat timer */
7781         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7782
7783         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7784
7785         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7786                           lpfc_idle_stat_delay_work);
7787         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7788         return 0;
7789 }
7790
7791 /**
7792  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7793  * @phba: pointer to lpfc hba data structure.
7794  *
7795  * This routine is invoked to set up the driver internal resources specific to
7796  * support the SLI-3 HBA device it attached to.
7797  *
7798  * Return codes
7799  * 0 - successful
7800  * other values - error
7801  **/
7802 static int
7803 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7804 {
7805         int rc, entry_sz;
7806
7807         /*
7808          * Initialize timers used by driver
7809          */
7810
7811         /* FCP polling mode timer */
7812         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7813
7814         /* Host attention work mask setup */
7815         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7816         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7817
7818         /* Get all the module params for configuring this host */
7819         lpfc_get_cfgparam(phba);
7820         /* Set up phase-1 common device driver resources */
7821
7822         rc = lpfc_setup_driver_resource_phase1(phba);
7823         if (rc)
7824                 return -ENODEV;
7825
7826         if (!phba->sli.sli3_ring)
7827                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7828                                               sizeof(struct lpfc_sli_ring),
7829                                               GFP_KERNEL);
7830         if (!phba->sli.sli3_ring)
7831                 return -ENOMEM;
7832
7833         /*
7834          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7835          * used to create the sg_dma_buf_pool must be dynamically calculated.
7836          */
7837
7838         if (phba->sli_rev == LPFC_SLI_REV4)
7839                 entry_sz = sizeof(struct sli4_sge);
7840         else
7841                 entry_sz = sizeof(struct ulp_bde64);
7842
7843         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7844         if (phba->cfg_enable_bg) {
7845                 /*
7846                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7847                  * the FCP rsp, and a BDE for each. Sice we have no control
7848                  * over how many protection data segments the SCSI Layer
7849                  * will hand us (ie: there could be one for every block
7850                  * in the IO), we just allocate enough BDEs to accomidate
7851                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7852                  * minimize the risk of running out.
7853                  */
7854                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7855                         sizeof(struct fcp_rsp) +
7856                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7857
7858                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7859                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7860
7861                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7862                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7863         } else {
7864                 /*
7865                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7866                  * the FCP rsp, a BDE for each, and a BDE for up to
7867                  * cfg_sg_seg_cnt data segments.
7868                  */
7869                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7870                         sizeof(struct fcp_rsp) +
7871                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7872
7873                 /* Total BDEs in BPL for scsi_sg_list */
7874                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7875         }
7876
7877         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7878                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7879                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7880                         phba->cfg_total_seg_cnt);
7881
7882         phba->max_vpi = LPFC_MAX_VPI;
7883         /* This will be set to correct value after config_port mbox */
7884         phba->max_vports = 0;
7885
7886         /*
7887          * Initialize the SLI Layer to run with lpfc HBAs.
7888          */
7889         lpfc_sli_setup(phba);
7890         lpfc_sli_queue_init(phba);
7891
7892         /* Allocate device driver memory */
7893         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7894                 return -ENOMEM;
7895
7896         phba->lpfc_sg_dma_buf_pool =
7897                 dma_pool_create("lpfc_sg_dma_buf_pool",
7898                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7899                                 BPL_ALIGN_SZ, 0);
7900
7901         if (!phba->lpfc_sg_dma_buf_pool)
7902                 goto fail_free_mem;
7903
7904         phba->lpfc_cmd_rsp_buf_pool =
7905                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7906                                         &phba->pcidev->dev,
7907                                         sizeof(struct fcp_cmnd) +
7908                                         sizeof(struct fcp_rsp),
7909                                         BPL_ALIGN_SZ, 0);
7910
7911         if (!phba->lpfc_cmd_rsp_buf_pool)
7912                 goto fail_free_dma_buf_pool;
7913
7914         /*
7915          * Enable sr-iov virtual functions if supported and configured
7916          * through the module parameter.
7917          */
7918         if (phba->cfg_sriov_nr_virtfn > 0) {
7919                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7920                                                  phba->cfg_sriov_nr_virtfn);
7921                 if (rc) {
7922                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7923                                         "2808 Requested number of SR-IOV "
7924                                         "virtual functions (%d) is not "
7925                                         "supported\n",
7926                                         phba->cfg_sriov_nr_virtfn);
7927                         phba->cfg_sriov_nr_virtfn = 0;
7928                 }
7929         }
7930
7931         return 0;
7932
7933 fail_free_dma_buf_pool:
7934         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7935         phba->lpfc_sg_dma_buf_pool = NULL;
7936 fail_free_mem:
7937         lpfc_mem_free(phba);
7938         return -ENOMEM;
7939 }
7940
7941 /**
7942  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7943  * @phba: pointer to lpfc hba data structure.
7944  *
7945  * This routine is invoked to unset the driver internal resources set up
7946  * specific for supporting the SLI-3 HBA device it attached to.
7947  **/
7948 static void
7949 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7950 {
7951         /* Free device driver memory allocated */
7952         lpfc_mem_free_all(phba);
7953
7954         return;
7955 }
7956
7957 /**
7958  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7959  * @phba: pointer to lpfc hba data structure.
7960  *
7961  * This routine is invoked to set up the driver internal resources specific to
7962  * support the SLI-4 HBA device it attached to.
7963  *
7964  * Return codes
7965  *      0 - successful
7966  *      other values - error
7967  **/
7968 static int
7969 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7970 {
7971         LPFC_MBOXQ_t *mboxq;
7972         MAILBOX_t *mb;
7973         int rc, i, max_buf_size;
7974         int longs;
7975         int extra;
7976         uint64_t wwn;
7977         u32 if_type;
7978         u32 if_fam;
7979
7980         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7981         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7982         phba->sli4_hba.curr_disp_cpu = 0;
7983
7984         /* Get all the module params for configuring this host */
7985         lpfc_get_cfgparam(phba);
7986
7987         /* Set up phase-1 common device driver resources */
7988         rc = lpfc_setup_driver_resource_phase1(phba);
7989         if (rc)
7990                 return -ENODEV;
7991
7992         /* Before proceed, wait for POST done and device ready */
7993         rc = lpfc_sli4_post_status_check(phba);
7994         if (rc)
7995                 return -ENODEV;
7996
7997         /* Allocate all driver workqueues here */
7998
7999         /* The lpfc_wq workqueue for deferred irq use */
8000         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
8001         if (!phba->wq)
8002                 return -ENOMEM;
8003
8004         /*
8005          * Initialize timers used by driver
8006          */
8007
8008         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
8009
8010         /* FCF rediscover timer */
8011         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
8012
8013         /* CMF congestion timer */
8014         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
8015         phba->cmf_timer.function = lpfc_cmf_timer;
8016
8017         /*
8018          * Control structure for handling external multi-buffer mailbox
8019          * command pass-through.
8020          */
8021         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
8022                 sizeof(struct lpfc_mbox_ext_buf_ctx));
8023         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
8024
8025         phba->max_vpi = LPFC_MAX_VPI;
8026
8027         /* This will be set to correct value after the read_config mbox */
8028         phba->max_vports = 0;
8029
8030         /* Program the default value of vlan_id and fc_map */
8031         phba->valid_vlan = 0;
8032         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
8033         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
8034         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
8035
8036         /*
8037          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
8038          * we will associate a new ring, for each EQ/CQ/WQ tuple.
8039          * The WQ create will allocate the ring.
8040          */
8041
8042         /* Initialize buffer queue management fields */
8043         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
8044         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
8045         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
8046
8047         /* for VMID idle timeout if VMID is enabled */
8048         if (lpfc_is_vmid_enabled(phba))
8049                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
8050
8051         /*
8052          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
8053          */
8054         /* Initialize the Abort buffer list used by driver */
8055         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
8056         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
8057
8058         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8059                 /* Initialize the Abort nvme buffer list used by driver */
8060                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
8061                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8062                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
8063                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
8064                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
8065         }
8066
8067         /* This abort list used by worker thread */
8068         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
8069         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
8070         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
8071         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
8072
8073         /*
8074          * Initialize driver internal slow-path work queues
8075          */
8076
8077         /* Driver internel slow-path CQ Event pool */
8078         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
8079         /* Response IOCB work queue list */
8080         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
8081         /* Asynchronous event CQ Event work queue list */
8082         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
8083         /* Slow-path XRI aborted CQ Event work queue list */
8084         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
8085         /* Receive queue CQ Event work queue list */
8086         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
8087
8088         /* Initialize extent block lists. */
8089         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
8090         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
8091         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
8092         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
8093
8094         /* Initialize mboxq lists. If the early init routines fail
8095          * these lists need to be correctly initialized.
8096          */
8097         INIT_LIST_HEAD(&phba->sli.mboxq);
8098         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
8099
8100         /* initialize optic_state to 0xFF */
8101         phba->sli4_hba.lnk_info.optic_state = 0xff;
8102
8103         /* Allocate device driver memory */
8104         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
8105         if (rc)
8106                 goto out_destroy_workqueue;
8107
8108         /* IF Type 2 ports get initialized now. */
8109         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
8110             LPFC_SLI_INTF_IF_TYPE_2) {
8111                 rc = lpfc_pci_function_reset(phba);
8112                 if (unlikely(rc)) {
8113                         rc = -ENODEV;
8114                         goto out_free_mem;
8115                 }
8116                 phba->temp_sensor_support = 1;
8117         }
8118
8119         /* Create the bootstrap mailbox command */
8120         rc = lpfc_create_bootstrap_mbox(phba);
8121         if (unlikely(rc))
8122                 goto out_free_mem;
8123
8124         /* Set up the host's endian order with the device. */
8125         rc = lpfc_setup_endian_order(phba);
8126         if (unlikely(rc))
8127                 goto out_free_bsmbx;
8128
8129         /* Set up the hba's configuration parameters. */
8130         rc = lpfc_sli4_read_config(phba);
8131         if (unlikely(rc))
8132                 goto out_free_bsmbx;
8133
8134         if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
8135                 /* Right now the link is down, if FA-PWWN is configured the
8136                  * firmware will try FLOGI before the driver gets a link up.
8137                  * If it fails, the driver should get a MISCONFIGURED async
8138                  * event which will clear this flag. The only notification
8139                  * the driver gets is if it fails, if it succeeds there is no
8140                  * notification given. Assume success.
8141                  */
8142                 phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
8143         }
8144
8145         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8146         if (unlikely(rc))
8147                 goto out_free_bsmbx;
8148
8149         /* IF Type 0 ports get initialized now. */
8150         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8151             LPFC_SLI_INTF_IF_TYPE_0) {
8152                 rc = lpfc_pci_function_reset(phba);
8153                 if (unlikely(rc))
8154                         goto out_free_bsmbx;
8155         }
8156
8157         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8158                                                        GFP_KERNEL);
8159         if (!mboxq) {
8160                 rc = -ENOMEM;
8161                 goto out_free_bsmbx;
8162         }
8163
8164         /* Check for NVMET being configured */
8165         phba->nvmet_support = 0;
8166         if (lpfc_enable_nvmet_cnt) {
8167
8168                 /* First get WWN of HBA instance */
8169                 lpfc_read_nv(phba, mboxq);
8170                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8171                 if (rc != MBX_SUCCESS) {
8172                         lpfc_printf_log(phba, KERN_ERR,
8173                                         LOG_TRACE_EVENT,
8174                                         "6016 Mailbox failed , mbxCmd x%x "
8175                                         "READ_NV, mbxStatus x%x\n",
8176                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8177                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8178                         mempool_free(mboxq, phba->mbox_mem_pool);
8179                         rc = -EIO;
8180                         goto out_free_bsmbx;
8181                 }
8182                 mb = &mboxq->u.mb;
8183                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8184                        sizeof(uint64_t));
8185                 wwn = cpu_to_be64(wwn);
8186                 phba->sli4_hba.wwnn.u.name = wwn;
8187                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8188                        sizeof(uint64_t));
8189                 /* wwn is WWPN of HBA instance */
8190                 wwn = cpu_to_be64(wwn);
8191                 phba->sli4_hba.wwpn.u.name = wwn;
8192
8193                 /* Check to see if it matches any module parameter */
8194                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8195                         if (wwn == lpfc_enable_nvmet[i]) {
8196 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8197                                 if (lpfc_nvmet_mem_alloc(phba))
8198                                         break;
8199
8200                                 phba->nvmet_support = 1; /* a match */
8201
8202                                 lpfc_printf_log(phba, KERN_ERR,
8203                                                 LOG_TRACE_EVENT,
8204                                                 "6017 NVME Target %016llx\n",
8205                                                 wwn);
8206 #else
8207                                 lpfc_printf_log(phba, KERN_ERR,
8208                                                 LOG_TRACE_EVENT,
8209                                                 "6021 Can't enable NVME Target."
8210                                                 " NVME_TARGET_FC infrastructure"
8211                                                 " is not in kernel\n");
8212 #endif
8213                                 /* Not supported for NVMET */
8214                                 phba->cfg_xri_rebalancing = 0;
8215                                 if (phba->irq_chann_mode == NHT_MODE) {
8216                                         phba->cfg_irq_chann =
8217                                                 phba->sli4_hba.num_present_cpu;
8218                                         phba->cfg_hdw_queue =
8219                                                 phba->sli4_hba.num_present_cpu;
8220                                         phba->irq_chann_mode = NORMAL_MODE;
8221                                 }
8222                                 break;
8223                         }
8224                 }
8225         }
8226
8227         lpfc_nvme_mod_param_dep(phba);
8228
8229         /*
8230          * Get sli4 parameters that override parameters from Port capabilities.
8231          * If this call fails, it isn't critical unless the SLI4 parameters come
8232          * back in conflict.
8233          */
8234         rc = lpfc_get_sli4_parameters(phba, mboxq);
8235         if (rc) {
8236                 if_type = bf_get(lpfc_sli_intf_if_type,
8237                                  &phba->sli4_hba.sli_intf);
8238                 if_fam = bf_get(lpfc_sli_intf_sli_family,
8239                                 &phba->sli4_hba.sli_intf);
8240                 if (phba->sli4_hba.extents_in_use &&
8241                     phba->sli4_hba.rpi_hdrs_in_use) {
8242                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8243                                         "2999 Unsupported SLI4 Parameters "
8244                                         "Extents and RPI headers enabled.\n");
8245                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8246                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
8247                                 mempool_free(mboxq, phba->mbox_mem_pool);
8248                                 rc = -EIO;
8249                                 goto out_free_bsmbx;
8250                         }
8251                 }
8252                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8253                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8254                         mempool_free(mboxq, phba->mbox_mem_pool);
8255                         rc = -EIO;
8256                         goto out_free_bsmbx;
8257                 }
8258         }
8259
8260         /*
8261          * 1 for cmd, 1 for rsp, NVME adds an extra one
8262          * for boundary conditions in its max_sgl_segment template.
8263          */
8264         extra = 2;
8265         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8266                 extra++;
8267
8268         /*
8269          * It doesn't matter what family our adapter is in, we are
8270          * limited to 2 Pages, 512 SGEs, for our SGL.
8271          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8272          */
8273         max_buf_size = (2 * SLI4_PAGE_SIZE);
8274
8275         /*
8276          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8277          * used to create the sg_dma_buf_pool must be calculated.
8278          */
8279         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8280                 /* Both cfg_enable_bg and cfg_external_dif code paths */
8281
8282                 /*
8283                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8284                  * the FCP rsp, and a SGE. Sice we have no control
8285                  * over how many protection segments the SCSI Layer
8286                  * will hand us (ie: there could be one for every block
8287                  * in the IO), just allocate enough SGEs to accomidate
8288                  * our max amount and we need to limit lpfc_sg_seg_cnt
8289                  * to minimize the risk of running out.
8290                  */
8291                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8292                                 sizeof(struct fcp_rsp) + max_buf_size;
8293
8294                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8295                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8296
8297                 /*
8298                  * If supporting DIF, reduce the seg count for scsi to
8299                  * allow room for the DIF sges.
8300                  */
8301                 if (phba->cfg_enable_bg &&
8302                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8303                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8304                 else
8305                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8306
8307         } else {
8308                 /*
8309                  * The scsi_buf for a regular I/O holds the FCP cmnd,
8310                  * the FCP rsp, a SGE for each, and a SGE for up to
8311                  * cfg_sg_seg_cnt data segments.
8312                  */
8313                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8314                                 sizeof(struct fcp_rsp) +
8315                                 ((phba->cfg_sg_seg_cnt + extra) *
8316                                 sizeof(struct sli4_sge));
8317
8318                 /* Total SGEs for scsi_sg_list */
8319                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8320                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8321
8322                 /*
8323                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8324                  * need to post 1 page for the SGL.
8325                  */
8326         }
8327
8328         if (phba->cfg_xpsgl && !phba->nvmet_support)
8329                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8330         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
8331                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8332         else
8333                 phba->cfg_sg_dma_buf_size =
8334                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8335
8336         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8337                                sizeof(struct sli4_sge);
8338
8339         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8340         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8341                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8342                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8343                                         "6300 Reducing NVME sg segment "
8344                                         "cnt to %d\n",
8345                                         LPFC_MAX_NVME_SEG_CNT);
8346                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8347                 } else
8348                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8349         }
8350
8351         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8352                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
8353                         "total:%d scsi:%d nvme:%d\n",
8354                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8355                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
8356                         phba->cfg_nvme_seg_cnt);
8357
8358         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8359                 i = phba->cfg_sg_dma_buf_size;
8360         else
8361                 i = SLI4_PAGE_SIZE;
8362
8363         phba->lpfc_sg_dma_buf_pool =
8364                         dma_pool_create("lpfc_sg_dma_buf_pool",
8365                                         &phba->pcidev->dev,
8366                                         phba->cfg_sg_dma_buf_size,
8367                                         i, 0);
8368         if (!phba->lpfc_sg_dma_buf_pool) {
8369                 rc = -ENOMEM;
8370                 goto out_free_bsmbx;
8371         }
8372
8373         phba->lpfc_cmd_rsp_buf_pool =
8374                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
8375                                         &phba->pcidev->dev,
8376                                         sizeof(struct fcp_cmnd) +
8377                                         sizeof(struct fcp_rsp),
8378                                         i, 0);
8379         if (!phba->lpfc_cmd_rsp_buf_pool) {
8380                 rc = -ENOMEM;
8381                 goto out_free_sg_dma_buf;
8382         }
8383
8384         mempool_free(mboxq, phba->mbox_mem_pool);
8385
8386         /* Verify OAS is supported */
8387         lpfc_sli4_oas_verify(phba);
8388
8389         /* Verify RAS support on adapter */
8390         lpfc_sli4_ras_init(phba);
8391
8392         /* Verify all the SLI4 queues */
8393         rc = lpfc_sli4_queue_verify(phba);
8394         if (rc)
8395                 goto out_free_cmd_rsp_buf;
8396
8397         /* Create driver internal CQE event pool */
8398         rc = lpfc_sli4_cq_event_pool_create(phba);
8399         if (rc)
8400                 goto out_free_cmd_rsp_buf;
8401
8402         /* Initialize sgl lists per host */
8403         lpfc_init_sgl_list(phba);
8404
8405         /* Allocate and initialize active sgl array */
8406         rc = lpfc_init_active_sgl_array(phba);
8407         if (rc) {
8408                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8409                                 "1430 Failed to initialize sgl list.\n");
8410                 goto out_destroy_cq_event_pool;
8411         }
8412         rc = lpfc_sli4_init_rpi_hdrs(phba);
8413         if (rc) {
8414                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8415                                 "1432 Failed to initialize rpi headers.\n");
8416                 goto out_free_active_sgl;
8417         }
8418
8419         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8420         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8421         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8422                                          GFP_KERNEL);
8423         if (!phba->fcf.fcf_rr_bmask) {
8424                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8425                                 "2759 Failed allocate memory for FCF round "
8426                                 "robin failover bmask\n");
8427                 rc = -ENOMEM;
8428                 goto out_remove_rpi_hdrs;
8429         }
8430
8431         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8432                                             sizeof(struct lpfc_hba_eq_hdl),
8433                                             GFP_KERNEL);
8434         if (!phba->sli4_hba.hba_eq_hdl) {
8435                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8436                                 "2572 Failed allocate memory for "
8437                                 "fast-path per-EQ handle array\n");
8438                 rc = -ENOMEM;
8439                 goto out_free_fcf_rr_bmask;
8440         }
8441
8442         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8443                                         sizeof(struct lpfc_vector_map_info),
8444                                         GFP_KERNEL);
8445         if (!phba->sli4_hba.cpu_map) {
8446                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8447                                 "3327 Failed allocate memory for msi-x "
8448                                 "interrupt vector mapping\n");
8449                 rc = -ENOMEM;
8450                 goto out_free_hba_eq_hdl;
8451         }
8452
8453         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8454         if (!phba->sli4_hba.eq_info) {
8455                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8456                                 "3321 Failed allocation for per_cpu stats\n");
8457                 rc = -ENOMEM;
8458                 goto out_free_hba_cpu_map;
8459         }
8460
8461         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8462                                            sizeof(*phba->sli4_hba.idle_stat),
8463                                            GFP_KERNEL);
8464         if (!phba->sli4_hba.idle_stat) {
8465                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8466                                 "3390 Failed allocation for idle_stat\n");
8467                 rc = -ENOMEM;
8468                 goto out_free_hba_eq_info;
8469         }
8470
8471 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8472         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8473         if (!phba->sli4_hba.c_stat) {
8474                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8475                                 "3332 Failed allocating per cpu hdwq stats\n");
8476                 rc = -ENOMEM;
8477                 goto out_free_hba_idle_stat;
8478         }
8479 #endif
8480
8481         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8482         if (!phba->cmf_stat) {
8483                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8484                                 "3331 Failed allocating per cpu cgn stats\n");
8485                 rc = -ENOMEM;
8486                 goto out_free_hba_hdwq_info;
8487         }
8488
8489         /*
8490          * Enable sr-iov virtual functions if supported and configured
8491          * through the module parameter.
8492          */
8493         if (phba->cfg_sriov_nr_virtfn > 0) {
8494                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8495                                                  phba->cfg_sriov_nr_virtfn);
8496                 if (rc) {
8497                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8498                                         "3020 Requested number of SR-IOV "
8499                                         "virtual functions (%d) is not "
8500                                         "supported\n",
8501                                         phba->cfg_sriov_nr_virtfn);
8502                         phba->cfg_sriov_nr_virtfn = 0;
8503                 }
8504         }
8505
8506         return 0;
8507
8508 out_free_hba_hdwq_info:
8509 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8510         free_percpu(phba->sli4_hba.c_stat);
8511 out_free_hba_idle_stat:
8512 #endif
8513         kfree(phba->sli4_hba.idle_stat);
8514 out_free_hba_eq_info:
8515         free_percpu(phba->sli4_hba.eq_info);
8516 out_free_hba_cpu_map:
8517         kfree(phba->sli4_hba.cpu_map);
8518 out_free_hba_eq_hdl:
8519         kfree(phba->sli4_hba.hba_eq_hdl);
8520 out_free_fcf_rr_bmask:
8521         kfree(phba->fcf.fcf_rr_bmask);
8522 out_remove_rpi_hdrs:
8523         lpfc_sli4_remove_rpi_hdrs(phba);
8524 out_free_active_sgl:
8525         lpfc_free_active_sgl(phba);
8526 out_destroy_cq_event_pool:
8527         lpfc_sli4_cq_event_pool_destroy(phba);
8528 out_free_cmd_rsp_buf:
8529         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8530         phba->lpfc_cmd_rsp_buf_pool = NULL;
8531 out_free_sg_dma_buf:
8532         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8533         phba->lpfc_sg_dma_buf_pool = NULL;
8534 out_free_bsmbx:
8535         lpfc_destroy_bootstrap_mbox(phba);
8536 out_free_mem:
8537         lpfc_mem_free(phba);
8538 out_destroy_workqueue:
8539         destroy_workqueue(phba->wq);
8540         phba->wq = NULL;
8541         return rc;
8542 }
8543
8544 /**
8545  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8546  * @phba: pointer to lpfc hba data structure.
8547  *
8548  * This routine is invoked to unset the driver internal resources set up
8549  * specific for supporting the SLI-4 HBA device it attached to.
8550  **/
8551 static void
8552 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8553 {
8554         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8555
8556         free_percpu(phba->sli4_hba.eq_info);
8557 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8558         free_percpu(phba->sli4_hba.c_stat);
8559 #endif
8560         free_percpu(phba->cmf_stat);
8561         kfree(phba->sli4_hba.idle_stat);
8562
8563         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8564         kfree(phba->sli4_hba.cpu_map);
8565         phba->sli4_hba.num_possible_cpu = 0;
8566         phba->sli4_hba.num_present_cpu = 0;
8567         phba->sli4_hba.curr_disp_cpu = 0;
8568         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8569
8570         /* Free memory allocated for fast-path work queue handles */
8571         kfree(phba->sli4_hba.hba_eq_hdl);
8572
8573         /* Free the allocated rpi headers. */
8574         lpfc_sli4_remove_rpi_hdrs(phba);
8575         lpfc_sli4_remove_rpis(phba);
8576
8577         /* Free eligible FCF index bmask */
8578         kfree(phba->fcf.fcf_rr_bmask);
8579
8580         /* Free the ELS sgl list */
8581         lpfc_free_active_sgl(phba);
8582         lpfc_free_els_sgl_list(phba);
8583         lpfc_free_nvmet_sgl_list(phba);
8584
8585         /* Free the completion queue EQ event pool */
8586         lpfc_sli4_cq_event_release_all(phba);
8587         lpfc_sli4_cq_event_pool_destroy(phba);
8588
8589         /* Release resource identifiers. */
8590         lpfc_sli4_dealloc_resource_identifiers(phba);
8591
8592         /* Free the bsmbx region. */
8593         lpfc_destroy_bootstrap_mbox(phba);
8594
8595         /* Free the SLI Layer memory with SLI4 HBAs */
8596         lpfc_mem_free_all(phba);
8597
8598         /* Free the current connect table */
8599         list_for_each_entry_safe(conn_entry, next_conn_entry,
8600                 &phba->fcf_conn_rec_list, list) {
8601                 list_del_init(&conn_entry->list);
8602                 kfree(conn_entry);
8603         }
8604
8605         return;
8606 }
8607
8608 /**
8609  * lpfc_init_api_table_setup - Set up init api function jump table
8610  * @phba: The hba struct for which this call is being executed.
8611  * @dev_grp: The HBA PCI-Device group number.
8612  *
8613  * This routine sets up the device INIT interface API function jump table
8614  * in @phba struct.
8615  *
8616  * Returns: 0 - success, -ENODEV - failure.
8617  **/
8618 int
8619 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8620 {
8621         phba->lpfc_hba_init_link = lpfc_hba_init_link;
8622         phba->lpfc_hba_down_link = lpfc_hba_down_link;
8623         phba->lpfc_selective_reset = lpfc_selective_reset;
8624         switch (dev_grp) {
8625         case LPFC_PCI_DEV_LP:
8626                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8627                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8628                 phba->lpfc_stop_port = lpfc_stop_port_s3;
8629                 break;
8630         case LPFC_PCI_DEV_OC:
8631                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8632                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8633                 phba->lpfc_stop_port = lpfc_stop_port_s4;
8634                 break;
8635         default:
8636                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8637                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
8638                                 dev_grp);
8639                 return -ENODEV;
8640         }
8641         return 0;
8642 }
8643
8644 /**
8645  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8646  * @phba: pointer to lpfc hba data structure.
8647  *
8648  * This routine is invoked to set up the driver internal resources after the
8649  * device specific resource setup to support the HBA device it attached to.
8650  *
8651  * Return codes
8652  *      0 - successful
8653  *      other values - error
8654  **/
8655 static int
8656 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8657 {
8658         int error;
8659
8660         /* Startup the kernel thread for this host adapter. */
8661         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8662                                           "lpfc_worker_%d", phba->brd_no);
8663         if (IS_ERR(phba->worker_thread)) {
8664                 error = PTR_ERR(phba->worker_thread);
8665                 return error;
8666         }
8667
8668         return 0;
8669 }
8670
8671 /**
8672  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8673  * @phba: pointer to lpfc hba data structure.
8674  *
8675  * This routine is invoked to unset the driver internal resources set up after
8676  * the device specific resource setup for supporting the HBA device it
8677  * attached to.
8678  **/
8679 static void
8680 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8681 {
8682         if (phba->wq) {
8683                 destroy_workqueue(phba->wq);
8684                 phba->wq = NULL;
8685         }
8686
8687         /* Stop kernel worker thread */
8688         if (phba->worker_thread)
8689                 kthread_stop(phba->worker_thread);
8690 }
8691
8692 /**
8693  * lpfc_free_iocb_list - Free iocb list.
8694  * @phba: pointer to lpfc hba data structure.
8695  *
8696  * This routine is invoked to free the driver's IOCB list and memory.
8697  **/
8698 void
8699 lpfc_free_iocb_list(struct lpfc_hba *phba)
8700 {
8701         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8702
8703         spin_lock_irq(&phba->hbalock);
8704         list_for_each_entry_safe(iocbq_entry, iocbq_next,
8705                                  &phba->lpfc_iocb_list, list) {
8706                 list_del(&iocbq_entry->list);
8707                 kfree(iocbq_entry);
8708                 phba->total_iocbq_bufs--;
8709         }
8710         spin_unlock_irq(&phba->hbalock);
8711
8712         return;
8713 }
8714
8715 /**
8716  * lpfc_init_iocb_list - Allocate and initialize iocb list.
8717  * @phba: pointer to lpfc hba data structure.
8718  * @iocb_count: number of requested iocbs
8719  *
8720  * This routine is invoked to allocate and initizlize the driver's IOCB
8721  * list and set up the IOCB tag array accordingly.
8722  *
8723  * Return codes
8724  *      0 - successful
8725  *      other values - error
8726  **/
8727 int
8728 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8729 {
8730         struct lpfc_iocbq *iocbq_entry = NULL;
8731         uint16_t iotag;
8732         int i;
8733
8734         /* Initialize and populate the iocb list per host.  */
8735         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8736         for (i = 0; i < iocb_count; i++) {
8737                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8738                 if (iocbq_entry == NULL) {
8739                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8740                                 "expected %d count. Unloading driver.\n",
8741                                 __func__, i, iocb_count);
8742                         goto out_free_iocbq;
8743                 }
8744
8745                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8746                 if (iotag == 0) {
8747                         kfree(iocbq_entry);
8748                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8749                                 "Unloading driver.\n", __func__);
8750                         goto out_free_iocbq;
8751                 }
8752                 iocbq_entry->sli4_lxritag = NO_XRI;
8753                 iocbq_entry->sli4_xritag = NO_XRI;
8754
8755                 spin_lock_irq(&phba->hbalock);
8756                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8757                 phba->total_iocbq_bufs++;
8758                 spin_unlock_irq(&phba->hbalock);
8759         }
8760
8761         return 0;
8762
8763 out_free_iocbq:
8764         lpfc_free_iocb_list(phba);
8765
8766         return -ENOMEM;
8767 }
8768
8769 /**
8770  * lpfc_free_sgl_list - Free a given sgl list.
8771  * @phba: pointer to lpfc hba data structure.
8772  * @sglq_list: pointer to the head of sgl list.
8773  *
8774  * This routine is invoked to free a give sgl list and memory.
8775  **/
8776 void
8777 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8778 {
8779         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8780
8781         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8782                 list_del(&sglq_entry->list);
8783                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8784                 kfree(sglq_entry);
8785         }
8786 }
8787
8788 /**
8789  * lpfc_free_els_sgl_list - Free els sgl list.
8790  * @phba: pointer to lpfc hba data structure.
8791  *
8792  * This routine is invoked to free the driver's els sgl list and memory.
8793  **/
8794 static void
8795 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8796 {
8797         LIST_HEAD(sglq_list);
8798
8799         /* Retrieve all els sgls from driver list */
8800         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8801         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8802         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8803
8804         /* Now free the sgl list */
8805         lpfc_free_sgl_list(phba, &sglq_list);
8806 }
8807
8808 /**
8809  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8810  * @phba: pointer to lpfc hba data structure.
8811  *
8812  * This routine is invoked to free the driver's nvmet sgl list and memory.
8813  **/
8814 static void
8815 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8816 {
8817         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8818         LIST_HEAD(sglq_list);
8819
8820         /* Retrieve all nvmet sgls from driver list */
8821         spin_lock_irq(&phba->hbalock);
8822         spin_lock(&phba->sli4_hba.sgl_list_lock);
8823         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8824         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8825         spin_unlock_irq(&phba->hbalock);
8826
8827         /* Now free the sgl list */
8828         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8829                 list_del(&sglq_entry->list);
8830                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8831                 kfree(sglq_entry);
8832         }
8833
8834         /* Update the nvmet_xri_cnt to reflect no current sgls.
8835          * The next initialization cycle sets the count and allocates
8836          * the sgls over again.
8837          */
8838         phba->sli4_hba.nvmet_xri_cnt = 0;
8839 }
8840
8841 /**
8842  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8843  * @phba: pointer to lpfc hba data structure.
8844  *
8845  * This routine is invoked to allocate the driver's active sgl memory.
8846  * This array will hold the sglq_entry's for active IOs.
8847  **/
8848 static int
8849 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8850 {
8851         int size;
8852         size = sizeof(struct lpfc_sglq *);
8853         size *= phba->sli4_hba.max_cfg_param.max_xri;
8854
8855         phba->sli4_hba.lpfc_sglq_active_list =
8856                 kzalloc(size, GFP_KERNEL);
8857         if (!phba->sli4_hba.lpfc_sglq_active_list)
8858                 return -ENOMEM;
8859         return 0;
8860 }
8861
8862 /**
8863  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8864  * @phba: pointer to lpfc hba data structure.
8865  *
8866  * This routine is invoked to walk through the array of active sglq entries
8867  * and free all of the resources.
8868  * This is just a place holder for now.
8869  **/
8870 static void
8871 lpfc_free_active_sgl(struct lpfc_hba *phba)
8872 {
8873         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8874 }
8875
8876 /**
8877  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8878  * @phba: pointer to lpfc hba data structure.
8879  *
8880  * This routine is invoked to allocate and initizlize the driver's sgl
8881  * list and set up the sgl xritag tag array accordingly.
8882  *
8883  **/
8884 static void
8885 lpfc_init_sgl_list(struct lpfc_hba *phba)
8886 {
8887         /* Initialize and populate the sglq list per host/VF. */
8888         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8889         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8890         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8891         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8892
8893         /* els xri-sgl book keeping */
8894         phba->sli4_hba.els_xri_cnt = 0;
8895
8896         /* nvme xri-buffer book keeping */
8897         phba->sli4_hba.io_xri_cnt = 0;
8898 }
8899
8900 /**
8901  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8902  * @phba: pointer to lpfc hba data structure.
8903  *
8904  * This routine is invoked to post rpi header templates to the
8905  * port for those SLI4 ports that do not support extents.  This routine
8906  * posts a PAGE_SIZE memory region to the port to hold up to
8907  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8908  * and should be called only when interrupts are disabled.
8909  *
8910  * Return codes
8911  *      0 - successful
8912  *      -ERROR - otherwise.
8913  **/
8914 int
8915 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8916 {
8917         int rc = 0;
8918         struct lpfc_rpi_hdr *rpi_hdr;
8919
8920         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8921         if (!phba->sli4_hba.rpi_hdrs_in_use)
8922                 return rc;
8923         if (phba->sli4_hba.extents_in_use)
8924                 return -EIO;
8925
8926         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8927         if (!rpi_hdr) {
8928                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8929                                 "0391 Error during rpi post operation\n");
8930                 lpfc_sli4_remove_rpis(phba);
8931                 rc = -ENODEV;
8932         }
8933
8934         return rc;
8935 }
8936
8937 /**
8938  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8939  * @phba: pointer to lpfc hba data structure.
8940  *
8941  * This routine is invoked to allocate a single 4KB memory region to
8942  * support rpis and stores them in the phba.  This single region
8943  * provides support for up to 64 rpis.  The region is used globally
8944  * by the device.
8945  *
8946  * Returns:
8947  *   A valid rpi hdr on success.
8948  *   A NULL pointer on any failure.
8949  **/
8950 struct lpfc_rpi_hdr *
8951 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8952 {
8953         uint16_t rpi_limit, curr_rpi_range;
8954         struct lpfc_dmabuf *dmabuf;
8955         struct lpfc_rpi_hdr *rpi_hdr;
8956
8957         /*
8958          * If the SLI4 port supports extents, posting the rpi header isn't
8959          * required.  Set the expected maximum count and let the actual value
8960          * get set when extents are fully allocated.
8961          */
8962         if (!phba->sli4_hba.rpi_hdrs_in_use)
8963                 return NULL;
8964         if (phba->sli4_hba.extents_in_use)
8965                 return NULL;
8966
8967         /* The limit on the logical index is just the max_rpi count. */
8968         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8969
8970         spin_lock_irq(&phba->hbalock);
8971         /*
8972          * Establish the starting RPI in this header block.  The starting
8973          * rpi is normalized to a zero base because the physical rpi is
8974          * port based.
8975          */
8976         curr_rpi_range = phba->sli4_hba.next_rpi;
8977         spin_unlock_irq(&phba->hbalock);
8978
8979         /* Reached full RPI range */
8980         if (curr_rpi_range == rpi_limit)
8981                 return NULL;
8982
8983         /*
8984          * First allocate the protocol header region for the port.  The
8985          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8986          */
8987         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8988         if (!dmabuf)
8989                 return NULL;
8990
8991         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8992                                           LPFC_HDR_TEMPLATE_SIZE,
8993                                           &dmabuf->phys, GFP_KERNEL);
8994         if (!dmabuf->virt) {
8995                 rpi_hdr = NULL;
8996                 goto err_free_dmabuf;
8997         }
8998
8999         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
9000                 rpi_hdr = NULL;
9001                 goto err_free_coherent;
9002         }
9003
9004         /* Save the rpi header data for cleanup later. */
9005         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
9006         if (!rpi_hdr)
9007                 goto err_free_coherent;
9008
9009         rpi_hdr->dmabuf = dmabuf;
9010         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
9011         rpi_hdr->page_count = 1;
9012         spin_lock_irq(&phba->hbalock);
9013
9014         /* The rpi_hdr stores the logical index only. */
9015         rpi_hdr->start_rpi = curr_rpi_range;
9016         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
9017         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
9018
9019         spin_unlock_irq(&phba->hbalock);
9020         return rpi_hdr;
9021
9022  err_free_coherent:
9023         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
9024                           dmabuf->virt, dmabuf->phys);
9025  err_free_dmabuf:
9026         kfree(dmabuf);
9027         return NULL;
9028 }
9029
9030 /**
9031  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
9032  * @phba: pointer to lpfc hba data structure.
9033  *
9034  * This routine is invoked to remove all memory resources allocated
9035  * to support rpis for SLI4 ports not supporting extents. This routine
9036  * presumes the caller has released all rpis consumed by fabric or port
9037  * logins and is prepared to have the header pages removed.
9038  **/
9039 void
9040 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
9041 {
9042         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
9043
9044         if (!phba->sli4_hba.rpi_hdrs_in_use)
9045                 goto exit;
9046
9047         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
9048                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
9049                 list_del(&rpi_hdr->list);
9050                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
9051                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
9052                 kfree(rpi_hdr->dmabuf);
9053                 kfree(rpi_hdr);
9054         }
9055  exit:
9056         /* There are no rpis available to the port now. */
9057         phba->sli4_hba.next_rpi = 0;
9058 }
9059
9060 /**
9061  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
9062  * @pdev: pointer to pci device data structure.
9063  *
9064  * This routine is invoked to allocate the driver hba data structure for an
9065  * HBA device. If the allocation is successful, the phba reference to the
9066  * PCI device data structure is set.
9067  *
9068  * Return codes
9069  *      pointer to @phba - successful
9070  *      NULL - error
9071  **/
9072 static struct lpfc_hba *
9073 lpfc_hba_alloc(struct pci_dev *pdev)
9074 {
9075         struct lpfc_hba *phba;
9076
9077         /* Allocate memory for HBA structure */
9078         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
9079         if (!phba) {
9080                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
9081                 return NULL;
9082         }
9083
9084         /* Set reference to PCI device in HBA structure */
9085         phba->pcidev = pdev;
9086
9087         /* Assign an unused board number */
9088         phba->brd_no = lpfc_get_instance();
9089         if (phba->brd_no < 0) {
9090                 kfree(phba);
9091                 return NULL;
9092         }
9093         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
9094
9095         spin_lock_init(&phba->ct_ev_lock);
9096         INIT_LIST_HEAD(&phba->ct_ev_waiters);
9097
9098         return phba;
9099 }
9100
9101 /**
9102  * lpfc_hba_free - Free driver hba data structure with a device.
9103  * @phba: pointer to lpfc hba data structure.
9104  *
9105  * This routine is invoked to free the driver hba data structure with an
9106  * HBA device.
9107  **/
9108 static void
9109 lpfc_hba_free(struct lpfc_hba *phba)
9110 {
9111         if (phba->sli_rev == LPFC_SLI_REV4)
9112                 kfree(phba->sli4_hba.hdwq);
9113
9114         /* Release the driver assigned board number */
9115         idr_remove(&lpfc_hba_index, phba->brd_no);
9116
9117         /* Free memory allocated with sli3 rings */
9118         kfree(phba->sli.sli3_ring);
9119         phba->sli.sli3_ring = NULL;
9120
9121         kfree(phba);
9122         return;
9123 }
9124
9125 /**
9126  * lpfc_setup_fdmi_mask - Setup initial FDMI mask for HBA and Port attributes
9127  * @vport: pointer to lpfc vport data structure.
9128  *
9129  * This routine is will setup initial FDMI attribute masks for
9130  * FDMI2 or SmartSAN depending on module parameters. The driver will attempt
9131  * to get these attributes first before falling back, the attribute
9132  * fallback hierarchy is SmartSAN -> FDMI2 -> FMDI1
9133  **/
9134 void
9135 lpfc_setup_fdmi_mask(struct lpfc_vport *vport)
9136 {
9137         struct lpfc_hba *phba = vport->phba;
9138
9139         vport->load_flag |= FC_ALLOW_FDMI;
9140         if (phba->cfg_enable_SmartSAN ||
9141             phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) {
9142                 /* Setup appropriate attribute masks */
9143                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9144                 if (phba->cfg_enable_SmartSAN)
9145                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9146                 else
9147                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9148         }
9149
9150         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
9151                         "6077 Setup FDMI mask: hba x%x port x%x\n",
9152                         vport->fdmi_hba_mask, vport->fdmi_port_mask);
9153 }
9154
9155 /**
9156  * lpfc_create_shost - Create hba physical port with associated scsi host.
9157  * @phba: pointer to lpfc hba data structure.
9158  *
9159  * This routine is invoked to create HBA physical port and associate a SCSI
9160  * host with it.
9161  *
9162  * Return codes
9163  *      0 - successful
9164  *      other values - error
9165  **/
9166 static int
9167 lpfc_create_shost(struct lpfc_hba *phba)
9168 {
9169         struct lpfc_vport *vport;
9170         struct Scsi_Host  *shost;
9171
9172         /* Initialize HBA FC structure */
9173         phba->fc_edtov = FF_DEF_EDTOV;
9174         phba->fc_ratov = FF_DEF_RATOV;
9175         phba->fc_altov = FF_DEF_ALTOV;
9176         phba->fc_arbtov = FF_DEF_ARBTOV;
9177
9178         atomic_set(&phba->sdev_cnt, 0);
9179         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
9180         if (!vport)
9181                 return -ENODEV;
9182
9183         shost = lpfc_shost_from_vport(vport);
9184         phba->pport = vport;
9185
9186         if (phba->nvmet_support) {
9187                 /* Only 1 vport (pport) will support NVME target */
9188                 phba->targetport = NULL;
9189                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9190                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9191                                 "6076 NVME Target Found\n");
9192         }
9193
9194         lpfc_debugfs_initialize(vport);
9195         /* Put reference to SCSI host to driver's device private data */
9196         pci_set_drvdata(phba->pcidev, shost);
9197
9198         lpfc_setup_fdmi_mask(vport);
9199
9200         /*
9201          * At this point we are fully registered with PSA. In addition,
9202          * any initial discovery should be completed.
9203          */
9204         return 0;
9205 }
9206
9207 /**
9208  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9209  * @phba: pointer to lpfc hba data structure.
9210  *
9211  * This routine is invoked to destroy HBA physical port and the associated
9212  * SCSI host.
9213  **/
9214 static void
9215 lpfc_destroy_shost(struct lpfc_hba *phba)
9216 {
9217         struct lpfc_vport *vport = phba->pport;
9218
9219         /* Destroy physical port that associated with the SCSI host */
9220         destroy_port(vport);
9221
9222         return;
9223 }
9224
9225 /**
9226  * lpfc_setup_bg - Setup Block guard structures and debug areas.
9227  * @phba: pointer to lpfc hba data structure.
9228  * @shost: the shost to be used to detect Block guard settings.
9229  *
9230  * This routine sets up the local Block guard protocol settings for @shost.
9231  * This routine also allocates memory for debugging bg buffers.
9232  **/
9233 static void
9234 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9235 {
9236         uint32_t old_mask;
9237         uint32_t old_guard;
9238
9239         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9240                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9241                                 "1478 Registering BlockGuard with the "
9242                                 "SCSI layer\n");
9243
9244                 old_mask = phba->cfg_prot_mask;
9245                 old_guard = phba->cfg_prot_guard;
9246
9247                 /* Only allow supported values */
9248                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9249                         SHOST_DIX_TYPE0_PROTECTION |
9250                         SHOST_DIX_TYPE1_PROTECTION);
9251                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9252                                          SHOST_DIX_GUARD_CRC);
9253
9254                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9255                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9256                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9257
9258                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9259                         if ((old_mask != phba->cfg_prot_mask) ||
9260                                 (old_guard != phba->cfg_prot_guard))
9261                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9262                                         "1475 Registering BlockGuard with the "
9263                                         "SCSI layer: mask %d  guard %d\n",
9264                                         phba->cfg_prot_mask,
9265                                         phba->cfg_prot_guard);
9266
9267                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
9268                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
9269                 } else
9270                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9271                                 "1479 Not Registering BlockGuard with the SCSI "
9272                                 "layer, Bad protection parameters: %d %d\n",
9273                                 old_mask, old_guard);
9274         }
9275 }
9276
9277 /**
9278  * lpfc_post_init_setup - Perform necessary device post initialization setup.
9279  * @phba: pointer to lpfc hba data structure.
9280  *
9281  * This routine is invoked to perform all the necessary post initialization
9282  * setup for the device.
9283  **/
9284 static void
9285 lpfc_post_init_setup(struct lpfc_hba *phba)
9286 {
9287         struct Scsi_Host  *shost;
9288         struct lpfc_adapter_event_header adapter_event;
9289
9290         /* Get the default values for Model Name and Description */
9291         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9292
9293         /*
9294          * hba setup may have changed the hba_queue_depth so we need to
9295          * adjust the value of can_queue.
9296          */
9297         shost = pci_get_drvdata(phba->pcidev);
9298         shost->can_queue = phba->cfg_hba_queue_depth - 10;
9299
9300         lpfc_host_attrib_init(shost);
9301
9302         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9303                 spin_lock_irq(shost->host_lock);
9304                 lpfc_poll_start_timer(phba);
9305                 spin_unlock_irq(shost->host_lock);
9306         }
9307
9308         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9309                         "0428 Perform SCSI scan\n");
9310         /* Send board arrival event to upper layer */
9311         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9312         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9313         fc_host_post_vendor_event(shost, fc_get_event_number(),
9314                                   sizeof(adapter_event),
9315                                   (char *) &adapter_event,
9316                                   LPFC_NL_VENDOR_ID);
9317         return;
9318 }
9319
9320 /**
9321  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9322  * @phba: pointer to lpfc hba data structure.
9323  *
9324  * This routine is invoked to set up the PCI device memory space for device
9325  * with SLI-3 interface spec.
9326  *
9327  * Return codes
9328  *      0 - successful
9329  *      other values - error
9330  **/
9331 static int
9332 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9333 {
9334         struct pci_dev *pdev = phba->pcidev;
9335         unsigned long bar0map_len, bar2map_len;
9336         int i, hbq_count;
9337         void *ptr;
9338         int error;
9339
9340         if (!pdev)
9341                 return -ENODEV;
9342
9343         /* Set the device DMA mask size */
9344         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9345         if (error)
9346                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9347         if (error)
9348                 return error;
9349         error = -ENODEV;
9350
9351         /* Get the bus address of Bar0 and Bar2 and the number of bytes
9352          * required by each mapping.
9353          */
9354         phba->pci_bar0_map = pci_resource_start(pdev, 0);
9355         bar0map_len = pci_resource_len(pdev, 0);
9356
9357         phba->pci_bar2_map = pci_resource_start(pdev, 2);
9358         bar2map_len = pci_resource_len(pdev, 2);
9359
9360         /* Map HBA SLIM to a kernel virtual address. */
9361         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9362         if (!phba->slim_memmap_p) {
9363                 dev_printk(KERN_ERR, &pdev->dev,
9364                            "ioremap failed for SLIM memory.\n");
9365                 goto out;
9366         }
9367
9368         /* Map HBA Control Registers to a kernel virtual address. */
9369         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9370         if (!phba->ctrl_regs_memmap_p) {
9371                 dev_printk(KERN_ERR, &pdev->dev,
9372                            "ioremap failed for HBA control registers.\n");
9373                 goto out_iounmap_slim;
9374         }
9375
9376         /* Allocate memory for SLI-2 structures */
9377         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9378                                                &phba->slim2p.phys, GFP_KERNEL);
9379         if (!phba->slim2p.virt)
9380                 goto out_iounmap;
9381
9382         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9383         phba->mbox_ext = (phba->slim2p.virt +
9384                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9385         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9386         phba->IOCBs = (phba->slim2p.virt +
9387                        offsetof(struct lpfc_sli2_slim, IOCBs));
9388
9389         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9390                                                  lpfc_sli_hbq_size(),
9391                                                  &phba->hbqslimp.phys,
9392                                                  GFP_KERNEL);
9393         if (!phba->hbqslimp.virt)
9394                 goto out_free_slim;
9395
9396         hbq_count = lpfc_sli_hbq_count();
9397         ptr = phba->hbqslimp.virt;
9398         for (i = 0; i < hbq_count; ++i) {
9399                 phba->hbqs[i].hbq_virt = ptr;
9400                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9401                 ptr += (lpfc_hbq_defs[i]->entry_count *
9402                         sizeof(struct lpfc_hbq_entry));
9403         }
9404         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9405         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9406
9407         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9408
9409         phba->MBslimaddr = phba->slim_memmap_p;
9410         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9411         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9412         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9413         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9414
9415         return 0;
9416
9417 out_free_slim:
9418         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9419                           phba->slim2p.virt, phba->slim2p.phys);
9420 out_iounmap:
9421         iounmap(phba->ctrl_regs_memmap_p);
9422 out_iounmap_slim:
9423         iounmap(phba->slim_memmap_p);
9424 out:
9425         return error;
9426 }
9427
9428 /**
9429  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9430  * @phba: pointer to lpfc hba data structure.
9431  *
9432  * This routine is invoked to unset the PCI device memory space for device
9433  * with SLI-3 interface spec.
9434  **/
9435 static void
9436 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9437 {
9438         struct pci_dev *pdev;
9439
9440         /* Obtain PCI device reference */
9441         if (!phba->pcidev)
9442                 return;
9443         else
9444                 pdev = phba->pcidev;
9445
9446         /* Free coherent DMA memory allocated */
9447         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9448                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9449         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9450                           phba->slim2p.virt, phba->slim2p.phys);
9451
9452         /* I/O memory unmap */
9453         iounmap(phba->ctrl_regs_memmap_p);
9454         iounmap(phba->slim_memmap_p);
9455
9456         return;
9457 }
9458
9459 /**
9460  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9461  * @phba: pointer to lpfc hba data structure.
9462  *
9463  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9464  * done and check status.
9465  *
9466  * Return 0 if successful, otherwise -ENODEV.
9467  **/
9468 int
9469 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9470 {
9471         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9472         struct lpfc_register reg_data;
9473         int i, port_error = 0;
9474         uint32_t if_type;
9475
9476         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9477         memset(&reg_data, 0, sizeof(reg_data));
9478         if (!phba->sli4_hba.PSMPHRregaddr)
9479                 return -ENODEV;
9480
9481         /* Wait up to 30 seconds for the SLI Port POST done and ready */
9482         for (i = 0; i < 3000; i++) {
9483                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9484                         &portsmphr_reg.word0) ||
9485                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9486                         /* Port has a fatal POST error, break out */
9487                         port_error = -ENODEV;
9488                         break;
9489                 }
9490                 if (LPFC_POST_STAGE_PORT_READY ==
9491                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9492                         break;
9493                 msleep(10);
9494         }
9495
9496         /*
9497          * If there was a port error during POST, then don't proceed with
9498          * other register reads as the data may not be valid.  Just exit.
9499          */
9500         if (port_error) {
9501                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9502                         "1408 Port Failed POST - portsmphr=0x%x, "
9503                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9504                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9505                         portsmphr_reg.word0,
9506                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9507                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9508                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9509                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9510                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9511                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9512                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9513                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9514         } else {
9515                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9516                                 "2534 Device Info: SLIFamily=0x%x, "
9517                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9518                                 "SLIHint_2=0x%x, FT=0x%x\n",
9519                                 bf_get(lpfc_sli_intf_sli_family,
9520                                        &phba->sli4_hba.sli_intf),
9521                                 bf_get(lpfc_sli_intf_slirev,
9522                                        &phba->sli4_hba.sli_intf),
9523                                 bf_get(lpfc_sli_intf_if_type,
9524                                        &phba->sli4_hba.sli_intf),
9525                                 bf_get(lpfc_sli_intf_sli_hint1,
9526                                        &phba->sli4_hba.sli_intf),
9527                                 bf_get(lpfc_sli_intf_sli_hint2,
9528                                        &phba->sli4_hba.sli_intf),
9529                                 bf_get(lpfc_sli_intf_func_type,
9530                                        &phba->sli4_hba.sli_intf));
9531                 /*
9532                  * Check for other Port errors during the initialization
9533                  * process.  Fail the load if the port did not come up
9534                  * correctly.
9535                  */
9536                 if_type = bf_get(lpfc_sli_intf_if_type,
9537                                  &phba->sli4_hba.sli_intf);
9538                 switch (if_type) {
9539                 case LPFC_SLI_INTF_IF_TYPE_0:
9540                         phba->sli4_hba.ue_mask_lo =
9541                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9542                         phba->sli4_hba.ue_mask_hi =
9543                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9544                         uerrlo_reg.word0 =
9545                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9546                         uerrhi_reg.word0 =
9547                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9548                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9549                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9550                                 lpfc_printf_log(phba, KERN_ERR,
9551                                                 LOG_TRACE_EVENT,
9552                                                 "1422 Unrecoverable Error "
9553                                                 "Detected during POST "
9554                                                 "uerr_lo_reg=0x%x, "
9555                                                 "uerr_hi_reg=0x%x, "
9556                                                 "ue_mask_lo_reg=0x%x, "
9557                                                 "ue_mask_hi_reg=0x%x\n",
9558                                                 uerrlo_reg.word0,
9559                                                 uerrhi_reg.word0,
9560                                                 phba->sli4_hba.ue_mask_lo,
9561                                                 phba->sli4_hba.ue_mask_hi);
9562                                 port_error = -ENODEV;
9563                         }
9564                         break;
9565                 case LPFC_SLI_INTF_IF_TYPE_2:
9566                 case LPFC_SLI_INTF_IF_TYPE_6:
9567                         /* Final checks.  The port status should be clean. */
9568                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9569                                 &reg_data.word0) ||
9570                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
9571                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
9572                                 phba->work_status[0] =
9573                                         readl(phba->sli4_hba.u.if_type2.
9574                                               ERR1regaddr);
9575                                 phba->work_status[1] =
9576                                         readl(phba->sli4_hba.u.if_type2.
9577                                               ERR2regaddr);
9578                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9579                                         "2888 Unrecoverable port error "
9580                                         "following POST: port status reg "
9581                                         "0x%x, port_smphr reg 0x%x, "
9582                                         "error 1=0x%x, error 2=0x%x\n",
9583                                         reg_data.word0,
9584                                         portsmphr_reg.word0,
9585                                         phba->work_status[0],
9586                                         phba->work_status[1]);
9587                                 port_error = -ENODEV;
9588                                 break;
9589                         }
9590
9591                         if (lpfc_pldv_detect &&
9592                             bf_get(lpfc_sli_intf_sli_family,
9593                                    &phba->sli4_hba.sli_intf) ==
9594                                         LPFC_SLI_INTF_FAMILY_G6)
9595                                 pci_write_config_byte(phba->pcidev,
9596                                                       LPFC_SLI_INTF, CFG_PLD);
9597                         break;
9598                 case LPFC_SLI_INTF_IF_TYPE_1:
9599                 default:
9600                         break;
9601                 }
9602         }
9603         return port_error;
9604 }
9605
9606 /**
9607  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9608  * @phba: pointer to lpfc hba data structure.
9609  * @if_type:  The SLI4 interface type getting configured.
9610  *
9611  * This routine is invoked to set up SLI4 BAR0 PCI config space register
9612  * memory map.
9613  **/
9614 static void
9615 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9616 {
9617         switch (if_type) {
9618         case LPFC_SLI_INTF_IF_TYPE_0:
9619                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9620                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9621                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9622                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9623                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9624                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9625                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9626                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9627                 phba->sli4_hba.SLIINTFregaddr =
9628                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9629                 break;
9630         case LPFC_SLI_INTF_IF_TYPE_2:
9631                 phba->sli4_hba.u.if_type2.EQDregaddr =
9632                         phba->sli4_hba.conf_regs_memmap_p +
9633                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9634                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9635                         phba->sli4_hba.conf_regs_memmap_p +
9636                                                 LPFC_CTL_PORT_ER1_OFFSET;
9637                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9638                         phba->sli4_hba.conf_regs_memmap_p +
9639                                                 LPFC_CTL_PORT_ER2_OFFSET;
9640                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9641                         phba->sli4_hba.conf_regs_memmap_p +
9642                                                 LPFC_CTL_PORT_CTL_OFFSET;
9643                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9644                         phba->sli4_hba.conf_regs_memmap_p +
9645                                                 LPFC_CTL_PORT_STA_OFFSET;
9646                 phba->sli4_hba.SLIINTFregaddr =
9647                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9648                 phba->sli4_hba.PSMPHRregaddr =
9649                         phba->sli4_hba.conf_regs_memmap_p +
9650                                                 LPFC_CTL_PORT_SEM_OFFSET;
9651                 phba->sli4_hba.RQDBregaddr =
9652                         phba->sli4_hba.conf_regs_memmap_p +
9653                                                 LPFC_ULP0_RQ_DOORBELL;
9654                 phba->sli4_hba.WQDBregaddr =
9655                         phba->sli4_hba.conf_regs_memmap_p +
9656                                                 LPFC_ULP0_WQ_DOORBELL;
9657                 phba->sli4_hba.CQDBregaddr =
9658                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9659                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9660                 phba->sli4_hba.MQDBregaddr =
9661                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9662                 phba->sli4_hba.BMBXregaddr =
9663                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9664                 break;
9665         case LPFC_SLI_INTF_IF_TYPE_6:
9666                 phba->sli4_hba.u.if_type2.EQDregaddr =
9667                         phba->sli4_hba.conf_regs_memmap_p +
9668                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9669                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9670                         phba->sli4_hba.conf_regs_memmap_p +
9671                                                 LPFC_CTL_PORT_ER1_OFFSET;
9672                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9673                         phba->sli4_hba.conf_regs_memmap_p +
9674                                                 LPFC_CTL_PORT_ER2_OFFSET;
9675                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9676                         phba->sli4_hba.conf_regs_memmap_p +
9677                                                 LPFC_CTL_PORT_CTL_OFFSET;
9678                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9679                         phba->sli4_hba.conf_regs_memmap_p +
9680                                                 LPFC_CTL_PORT_STA_OFFSET;
9681                 phba->sli4_hba.PSMPHRregaddr =
9682                         phba->sli4_hba.conf_regs_memmap_p +
9683                                                 LPFC_CTL_PORT_SEM_OFFSET;
9684                 phba->sli4_hba.BMBXregaddr =
9685                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9686                 break;
9687         case LPFC_SLI_INTF_IF_TYPE_1:
9688         default:
9689                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9690                            "FATAL - unsupported SLI4 interface type - %d\n",
9691                            if_type);
9692                 break;
9693         }
9694 }
9695
9696 /**
9697  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9698  * @phba: pointer to lpfc hba data structure.
9699  * @if_type: sli if type to operate on.
9700  *
9701  * This routine is invoked to set up SLI4 BAR1 register memory map.
9702  **/
9703 static void
9704 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9705 {
9706         switch (if_type) {
9707         case LPFC_SLI_INTF_IF_TYPE_0:
9708                 phba->sli4_hba.PSMPHRregaddr =
9709                         phba->sli4_hba.ctrl_regs_memmap_p +
9710                         LPFC_SLIPORT_IF0_SMPHR;
9711                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9712                         LPFC_HST_ISR0;
9713                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9714                         LPFC_HST_IMR0;
9715                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9716                         LPFC_HST_ISCR0;
9717                 break;
9718         case LPFC_SLI_INTF_IF_TYPE_6:
9719                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9720                         LPFC_IF6_RQ_DOORBELL;
9721                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9722                         LPFC_IF6_WQ_DOORBELL;
9723                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9724                         LPFC_IF6_CQ_DOORBELL;
9725                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9726                         LPFC_IF6_EQ_DOORBELL;
9727                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9728                         LPFC_IF6_MQ_DOORBELL;
9729                 break;
9730         case LPFC_SLI_INTF_IF_TYPE_2:
9731         case LPFC_SLI_INTF_IF_TYPE_1:
9732         default:
9733                 dev_err(&phba->pcidev->dev,
9734                            "FATAL - unsupported SLI4 interface type - %d\n",
9735                            if_type);
9736                 break;
9737         }
9738 }
9739
9740 /**
9741  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9742  * @phba: pointer to lpfc hba data structure.
9743  * @vf: virtual function number
9744  *
9745  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9746  * based on the given viftual function number, @vf.
9747  *
9748  * Return 0 if successful, otherwise -ENODEV.
9749  **/
9750 static int
9751 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9752 {
9753         if (vf > LPFC_VIR_FUNC_MAX)
9754                 return -ENODEV;
9755
9756         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9757                                 vf * LPFC_VFR_PAGE_SIZE +
9758                                         LPFC_ULP0_RQ_DOORBELL);
9759         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9760                                 vf * LPFC_VFR_PAGE_SIZE +
9761                                         LPFC_ULP0_WQ_DOORBELL);
9762         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9763                                 vf * LPFC_VFR_PAGE_SIZE +
9764                                         LPFC_EQCQ_DOORBELL);
9765         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9766         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9767                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9768         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9769                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9770         return 0;
9771 }
9772
9773 /**
9774  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9775  * @phba: pointer to lpfc hba data structure.
9776  *
9777  * This routine is invoked to create the bootstrap mailbox
9778  * region consistent with the SLI-4 interface spec.  This
9779  * routine allocates all memory necessary to communicate
9780  * mailbox commands to the port and sets up all alignment
9781  * needs.  No locks are expected to be held when calling
9782  * this routine.
9783  *
9784  * Return codes
9785  *      0 - successful
9786  *      -ENOMEM - could not allocated memory.
9787  **/
9788 static int
9789 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9790 {
9791         uint32_t bmbx_size;
9792         struct lpfc_dmabuf *dmabuf;
9793         struct dma_address *dma_address;
9794         uint32_t pa_addr;
9795         uint64_t phys_addr;
9796
9797         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9798         if (!dmabuf)
9799                 return -ENOMEM;
9800
9801         /*
9802          * The bootstrap mailbox region is comprised of 2 parts
9803          * plus an alignment restriction of 16 bytes.
9804          */
9805         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9806         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9807                                           &dmabuf->phys, GFP_KERNEL);
9808         if (!dmabuf->virt) {
9809                 kfree(dmabuf);
9810                 return -ENOMEM;
9811         }
9812
9813         /*
9814          * Initialize the bootstrap mailbox pointers now so that the register
9815          * operations are simple later.  The mailbox dma address is required
9816          * to be 16-byte aligned.  Also align the virtual memory as each
9817          * maibox is copied into the bmbx mailbox region before issuing the
9818          * command to the port.
9819          */
9820         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9821         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9822
9823         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9824                                               LPFC_ALIGN_16_BYTE);
9825         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9826                                               LPFC_ALIGN_16_BYTE);
9827
9828         /*
9829          * Set the high and low physical addresses now.  The SLI4 alignment
9830          * requirement is 16 bytes and the mailbox is posted to the port
9831          * as two 30-bit addresses.  The other data is a bit marking whether
9832          * the 30-bit address is the high or low address.
9833          * Upcast bmbx aphys to 64bits so shift instruction compiles
9834          * clean on 32 bit machines.
9835          */
9836         dma_address = &phba->sli4_hba.bmbx.dma_address;
9837         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9838         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9839         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9840                                            LPFC_BMBX_BIT1_ADDR_HI);
9841
9842         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9843         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9844                                            LPFC_BMBX_BIT1_ADDR_LO);
9845         return 0;
9846 }
9847
9848 /**
9849  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9850  * @phba: pointer to lpfc hba data structure.
9851  *
9852  * This routine is invoked to teardown the bootstrap mailbox
9853  * region and release all host resources. This routine requires
9854  * the caller to ensure all mailbox commands recovered, no
9855  * additional mailbox comands are sent, and interrupts are disabled
9856  * before calling this routine.
9857  *
9858  **/
9859 static void
9860 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9861 {
9862         dma_free_coherent(&phba->pcidev->dev,
9863                           phba->sli4_hba.bmbx.bmbx_size,
9864                           phba->sli4_hba.bmbx.dmabuf->virt,
9865                           phba->sli4_hba.bmbx.dmabuf->phys);
9866
9867         kfree(phba->sli4_hba.bmbx.dmabuf);
9868         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9869 }
9870
9871 static const char * const lpfc_topo_to_str[] = {
9872         "Loop then P2P",
9873         "Loopback",
9874         "P2P Only",
9875         "Unsupported",
9876         "Loop Only",
9877         "Unsupported",
9878         "P2P then Loop",
9879 };
9880
9881 #define LINK_FLAGS_DEF  0x0
9882 #define LINK_FLAGS_P2P  0x1
9883 #define LINK_FLAGS_LOOP 0x2
9884 /**
9885  * lpfc_map_topology - Map the topology read from READ_CONFIG
9886  * @phba: pointer to lpfc hba data structure.
9887  * @rd_config: pointer to read config data
9888  *
9889  * This routine is invoked to map the topology values as read
9890  * from the read config mailbox command. If the persistent
9891  * topology feature is supported, the firmware will provide the
9892  * saved topology information to be used in INIT_LINK
9893  **/
9894 static void
9895 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9896 {
9897         u8 ptv, tf, pt;
9898
9899         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9900         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9901         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9902
9903         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9904                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9905                          ptv, tf, pt);
9906         if (!ptv) {
9907                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9908                                 "2019 FW does not support persistent topology "
9909                                 "Using driver parameter defined value [%s]",
9910                                 lpfc_topo_to_str[phba->cfg_topology]);
9911                 return;
9912         }
9913         /* FW supports persistent topology - override module parameter value */
9914         phba->hba_flag |= HBA_PERSISTENT_TOPO;
9915
9916         /* if ASIC_GEN_NUM >= 0xC) */
9917         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9918                     LPFC_SLI_INTF_IF_TYPE_6) ||
9919             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9920                     LPFC_SLI_INTF_FAMILY_G6)) {
9921                 if (!tf) {
9922                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9923                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9924                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9925                 } else {
9926                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9927                 }
9928         } else { /* G5 */
9929                 if (tf) {
9930                         /* If topology failover set - pt is '0' or '1' */
9931                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9932                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9933                 } else {
9934                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9935                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9936                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9937                 }
9938         }
9939         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9940                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9941                                 "2020 Using persistent topology value [%s]",
9942                                 lpfc_topo_to_str[phba->cfg_topology]);
9943         } else {
9944                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9945                                 "2021 Invalid topology values from FW "
9946                                 "Using driver parameter defined value [%s]",
9947                                 lpfc_topo_to_str[phba->cfg_topology]);
9948         }
9949 }
9950
9951 /**
9952  * lpfc_sli4_read_config - Get the config parameters.
9953  * @phba: pointer to lpfc hba data structure.
9954  *
9955  * This routine is invoked to read the configuration parameters from the HBA.
9956  * The configuration parameters are used to set the base and maximum values
9957  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9958  * allocation for the port.
9959  *
9960  * Return codes
9961  *      0 - successful
9962  *      -ENOMEM - No available memory
9963  *      -EIO - The mailbox failed to complete successfully.
9964  **/
9965 int
9966 lpfc_sli4_read_config(struct lpfc_hba *phba)
9967 {
9968         LPFC_MBOXQ_t *pmb;
9969         struct lpfc_mbx_read_config *rd_config;
9970         union  lpfc_sli4_cfg_shdr *shdr;
9971         uint32_t shdr_status, shdr_add_status;
9972         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9973         struct lpfc_rsrc_desc_fcfcoe *desc;
9974         char *pdesc_0;
9975         uint16_t forced_link_speed;
9976         uint32_t if_type, qmin, fawwpn;
9977         int length, i, rc = 0, rc2;
9978
9979         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9980         if (!pmb) {
9981                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9982                                 "2011 Unable to allocate memory for issuing "
9983                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9984                 return -ENOMEM;
9985         }
9986
9987         lpfc_read_config(phba, pmb);
9988
9989         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9990         if (rc != MBX_SUCCESS) {
9991                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9992                                 "2012 Mailbox failed , mbxCmd x%x "
9993                                 "READ_CONFIG, mbxStatus x%x\n",
9994                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9995                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9996                 rc = -EIO;
9997         } else {
9998                 rd_config = &pmb->u.mqe.un.rd_config;
9999                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
10000                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
10001                         phba->sli4_hba.lnk_info.lnk_tp =
10002                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
10003                         phba->sli4_hba.lnk_info.lnk_no =
10004                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
10005                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10006                                         "3081 lnk_type:%d, lnk_numb:%d\n",
10007                                         phba->sli4_hba.lnk_info.lnk_tp,
10008                                         phba->sli4_hba.lnk_info.lnk_no);
10009                 } else
10010                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10011                                         "3082 Mailbox (x%x) returned ldv:x0\n",
10012                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
10013                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
10014                         phba->bbcredit_support = 1;
10015                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
10016                 }
10017
10018                 fawwpn = bf_get(lpfc_mbx_rd_conf_fawwpn, rd_config);
10019
10020                 if (fawwpn) {
10021                         lpfc_printf_log(phba, KERN_INFO,
10022                                         LOG_INIT | LOG_DISCOVERY,
10023                                         "2702 READ_CONFIG: FA-PWWN is "
10024                                         "configured on\n");
10025                         phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_CONFIG;
10026                 } else {
10027                         /* Clear FW configured flag, preserve driver flag */
10028                         phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_CONFIG;
10029                 }
10030
10031                 phba->sli4_hba.conf_trunk =
10032                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
10033                 phba->sli4_hba.extents_in_use =
10034                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
10035
10036                 phba->sli4_hba.max_cfg_param.max_xri =
10037                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
10038                 /* Reduce resource usage in kdump environment */
10039                 if (is_kdump_kernel() &&
10040                     phba->sli4_hba.max_cfg_param.max_xri > 512)
10041                         phba->sli4_hba.max_cfg_param.max_xri = 512;
10042                 phba->sli4_hba.max_cfg_param.xri_base =
10043                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
10044                 phba->sli4_hba.max_cfg_param.max_vpi =
10045                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
10046                 /* Limit the max we support */
10047                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
10048                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
10049                 phba->sli4_hba.max_cfg_param.vpi_base =
10050                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
10051                 phba->sli4_hba.max_cfg_param.max_rpi =
10052                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
10053                 phba->sli4_hba.max_cfg_param.rpi_base =
10054                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
10055                 phba->sli4_hba.max_cfg_param.max_vfi =
10056                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
10057                 phba->sli4_hba.max_cfg_param.vfi_base =
10058                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
10059                 phba->sli4_hba.max_cfg_param.max_fcfi =
10060                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
10061                 phba->sli4_hba.max_cfg_param.max_eq =
10062                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
10063                 phba->sli4_hba.max_cfg_param.max_rq =
10064                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
10065                 phba->sli4_hba.max_cfg_param.max_wq =
10066                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
10067                 phba->sli4_hba.max_cfg_param.max_cq =
10068                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
10069                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
10070                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
10071                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
10072                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
10073                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
10074                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
10075                 phba->max_vports = phba->max_vpi;
10076
10077                 /* Next decide on FPIN or Signal E2E CGN support
10078                  * For congestion alarms and warnings valid combination are:
10079                  * 1. FPIN alarms / FPIN warnings
10080                  * 2. Signal alarms / Signal warnings
10081                  * 3. FPIN alarms / Signal warnings
10082                  * 4. Signal alarms / FPIN warnings
10083                  *
10084                  * Initialize the adapter frequency to 100 mSecs
10085                  */
10086                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
10087                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
10088                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
10089
10090                 if (lpfc_use_cgn_signal) {
10091                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
10092                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
10093                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
10094                         }
10095                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
10096                                 /* MUST support both alarm and warning
10097                                  * because EDC does not support alarm alone.
10098                                  */
10099                                 if (phba->cgn_reg_signal !=
10100                                     EDC_CG_SIG_WARN_ONLY) {
10101                                         /* Must support both or none */
10102                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
10103                                         phba->cgn_reg_signal =
10104                                                 EDC_CG_SIG_NOTSUPPORTED;
10105                                 } else {
10106                                         phba->cgn_reg_signal =
10107                                                 EDC_CG_SIG_WARN_ALARM;
10108                                         phba->cgn_reg_fpin =
10109                                                 LPFC_CGN_FPIN_NONE;
10110                                 }
10111                         }
10112                 }
10113
10114                 /* Set the congestion initial signal and fpin values. */
10115                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
10116                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
10117
10118                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
10119                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
10120                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
10121
10122                 lpfc_map_topology(phba, rd_config);
10123                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10124                                 "2003 cfg params Extents? %d "
10125                                 "XRI(B:%d M:%d), "
10126                                 "VPI(B:%d M:%d) "
10127                                 "VFI(B:%d M:%d) "
10128                                 "RPI(B:%d M:%d) "
10129                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
10130                                 phba->sli4_hba.extents_in_use,
10131                                 phba->sli4_hba.max_cfg_param.xri_base,
10132                                 phba->sli4_hba.max_cfg_param.max_xri,
10133                                 phba->sli4_hba.max_cfg_param.vpi_base,
10134                                 phba->sli4_hba.max_cfg_param.max_vpi,
10135                                 phba->sli4_hba.max_cfg_param.vfi_base,
10136                                 phba->sli4_hba.max_cfg_param.max_vfi,
10137                                 phba->sli4_hba.max_cfg_param.rpi_base,
10138                                 phba->sli4_hba.max_cfg_param.max_rpi,
10139                                 phba->sli4_hba.max_cfg_param.max_fcfi,
10140                                 phba->sli4_hba.max_cfg_param.max_eq,
10141                                 phba->sli4_hba.max_cfg_param.max_cq,
10142                                 phba->sli4_hba.max_cfg_param.max_wq,
10143                                 phba->sli4_hba.max_cfg_param.max_rq,
10144                                 phba->lmt);
10145
10146                 /*
10147                  * Calculate queue resources based on how
10148                  * many WQ/CQ/EQs are available.
10149                  */
10150                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
10151                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
10152                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
10153                 /*
10154                  * Reserve 4 (ELS, NVME LS, MBOX, plus one extra) and
10155                  * the remainder can be used for NVME / FCP.
10156                  */
10157                 qmin -= 4;
10158                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
10159                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
10160
10161                 /* Check to see if there is enough for default cfg */
10162                 if ((phba->cfg_irq_chann > qmin) ||
10163                     (phba->cfg_hdw_queue > qmin)) {
10164                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10165                                         "2005 Reducing Queues - "
10166                                         "FW resource limitation: "
10167                                         "WQ %d CQ %d EQ %d: min %d: "
10168                                         "IRQ %d HDWQ %d\n",
10169                                         phba->sli4_hba.max_cfg_param.max_wq,
10170                                         phba->sli4_hba.max_cfg_param.max_cq,
10171                                         phba->sli4_hba.max_cfg_param.max_eq,
10172                                         qmin, phba->cfg_irq_chann,
10173                                         phba->cfg_hdw_queue);
10174
10175                         if (phba->cfg_irq_chann > qmin)
10176                                 phba->cfg_irq_chann = qmin;
10177                         if (phba->cfg_hdw_queue > qmin)
10178                                 phba->cfg_hdw_queue = qmin;
10179                 }
10180         }
10181
10182         if (rc)
10183                 goto read_cfg_out;
10184
10185         /* Update link speed if forced link speed is supported */
10186         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10187         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10188                 forced_link_speed =
10189                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10190                 if (forced_link_speed) {
10191                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
10192
10193                         switch (forced_link_speed) {
10194                         case LINK_SPEED_1G:
10195                                 phba->cfg_link_speed =
10196                                         LPFC_USER_LINK_SPEED_1G;
10197                                 break;
10198                         case LINK_SPEED_2G:
10199                                 phba->cfg_link_speed =
10200                                         LPFC_USER_LINK_SPEED_2G;
10201                                 break;
10202                         case LINK_SPEED_4G:
10203                                 phba->cfg_link_speed =
10204                                         LPFC_USER_LINK_SPEED_4G;
10205                                 break;
10206                         case LINK_SPEED_8G:
10207                                 phba->cfg_link_speed =
10208                                         LPFC_USER_LINK_SPEED_8G;
10209                                 break;
10210                         case LINK_SPEED_10G:
10211                                 phba->cfg_link_speed =
10212                                         LPFC_USER_LINK_SPEED_10G;
10213                                 break;
10214                         case LINK_SPEED_16G:
10215                                 phba->cfg_link_speed =
10216                                         LPFC_USER_LINK_SPEED_16G;
10217                                 break;
10218                         case LINK_SPEED_32G:
10219                                 phba->cfg_link_speed =
10220                                         LPFC_USER_LINK_SPEED_32G;
10221                                 break;
10222                         case LINK_SPEED_64G:
10223                                 phba->cfg_link_speed =
10224                                         LPFC_USER_LINK_SPEED_64G;
10225                                 break;
10226                         case 0xffff:
10227                                 phba->cfg_link_speed =
10228                                         LPFC_USER_LINK_SPEED_AUTO;
10229                                 break;
10230                         default:
10231                                 lpfc_printf_log(phba, KERN_ERR,
10232                                                 LOG_TRACE_EVENT,
10233                                                 "0047 Unrecognized link "
10234                                                 "speed : %d\n",
10235                                                 forced_link_speed);
10236                                 phba->cfg_link_speed =
10237                                         LPFC_USER_LINK_SPEED_AUTO;
10238                         }
10239                 }
10240         }
10241
10242         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
10243         length = phba->sli4_hba.max_cfg_param.max_xri -
10244                         lpfc_sli4_get_els_iocb_cnt(phba);
10245         if (phba->cfg_hba_queue_depth > length) {
10246                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10247                                 "3361 HBA queue depth changed from %d to %d\n",
10248                                 phba->cfg_hba_queue_depth, length);
10249                 phba->cfg_hba_queue_depth = length;
10250         }
10251
10252         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10253             LPFC_SLI_INTF_IF_TYPE_2)
10254                 goto read_cfg_out;
10255
10256         /* get the pf# and vf# for SLI4 if_type 2 port */
10257         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10258                   sizeof(struct lpfc_sli4_cfg_mhdr));
10259         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10260                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10261                          length, LPFC_SLI4_MBX_EMBED);
10262
10263         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10264         shdr = (union lpfc_sli4_cfg_shdr *)
10265                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10266         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10267         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10268         if (rc2 || shdr_status || shdr_add_status) {
10269                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10270                                 "3026 Mailbox failed , mbxCmd x%x "
10271                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10272                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10273                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10274                 goto read_cfg_out;
10275         }
10276
10277         /* search for fc_fcoe resrouce descriptor */
10278         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10279
10280         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10281         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10282         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10283         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10284                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10285         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10286                 goto read_cfg_out;
10287
10288         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10289                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10290                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10291                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10292                         phba->sli4_hba.iov.pf_number =
10293                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10294                         phba->sli4_hba.iov.vf_number =
10295                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10296                         break;
10297                 }
10298         }
10299
10300         if (i < LPFC_RSRC_DESC_MAX_NUM)
10301                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10302                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10303                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10304                                 phba->sli4_hba.iov.vf_number);
10305         else
10306                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10307                                 "3028 GET_FUNCTION_CONFIG: failed to find "
10308                                 "Resource Descriptor:x%x\n",
10309                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
10310
10311 read_cfg_out:
10312         mempool_free(pmb, phba->mbox_mem_pool);
10313         return rc;
10314 }
10315
10316 /**
10317  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10318  * @phba: pointer to lpfc hba data structure.
10319  *
10320  * This routine is invoked to setup the port-side endian order when
10321  * the port if_type is 0.  This routine has no function for other
10322  * if_types.
10323  *
10324  * Return codes
10325  *      0 - successful
10326  *      -ENOMEM - No available memory
10327  *      -EIO - The mailbox failed to complete successfully.
10328  **/
10329 static int
10330 lpfc_setup_endian_order(struct lpfc_hba *phba)
10331 {
10332         LPFC_MBOXQ_t *mboxq;
10333         uint32_t if_type, rc = 0;
10334         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10335                                       HOST_ENDIAN_HIGH_WORD1};
10336
10337         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10338         switch (if_type) {
10339         case LPFC_SLI_INTF_IF_TYPE_0:
10340                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10341                                                        GFP_KERNEL);
10342                 if (!mboxq) {
10343                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10344                                         "0492 Unable to allocate memory for "
10345                                         "issuing SLI_CONFIG_SPECIAL mailbox "
10346                                         "command\n");
10347                         return -ENOMEM;
10348                 }
10349
10350                 /*
10351                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10352                  * two words to contain special data values and no other data.
10353                  */
10354                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10355                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10356                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10357                 if (rc != MBX_SUCCESS) {
10358                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10359                                         "0493 SLI_CONFIG_SPECIAL mailbox "
10360                                         "failed with status x%x\n",
10361                                         rc);
10362                         rc = -EIO;
10363                 }
10364                 mempool_free(mboxq, phba->mbox_mem_pool);
10365                 break;
10366         case LPFC_SLI_INTF_IF_TYPE_6:
10367         case LPFC_SLI_INTF_IF_TYPE_2:
10368         case LPFC_SLI_INTF_IF_TYPE_1:
10369         default:
10370                 break;
10371         }
10372         return rc;
10373 }
10374
10375 /**
10376  * lpfc_sli4_queue_verify - Verify and update EQ counts
10377  * @phba: pointer to lpfc hba data structure.
10378  *
10379  * This routine is invoked to check the user settable queue counts for EQs.
10380  * After this routine is called the counts will be set to valid values that
10381  * adhere to the constraints of the system's interrupt vectors and the port's
10382  * queue resources.
10383  *
10384  * Return codes
10385  *      0 - successful
10386  *      -ENOMEM - No available memory
10387  **/
10388 static int
10389 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10390 {
10391         /*
10392          * Sanity check for configured queue parameters against the run-time
10393          * device parameters
10394          */
10395
10396         if (phba->nvmet_support) {
10397                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10398                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10399                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10400                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10401         }
10402
10403         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10404                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10405                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
10406                         phba->cfg_nvmet_mrq);
10407
10408         /* Get EQ depth from module parameter, fake the default for now */
10409         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10410         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10411
10412         /* Get CQ depth from module parameter, fake the default for now */
10413         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10414         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10415         return 0;
10416 }
10417
10418 static int
10419 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10420 {
10421         struct lpfc_queue *qdesc;
10422         u32 wqesize;
10423         int cpu;
10424
10425         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10426         /* Create Fast Path IO CQs */
10427         if (phba->enab_exp_wqcq_pages)
10428                 /* Increase the CQ size when WQEs contain an embedded cdb */
10429                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10430                                               phba->sli4_hba.cq_esize,
10431                                               LPFC_CQE_EXP_COUNT, cpu);
10432
10433         else
10434                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10435                                               phba->sli4_hba.cq_esize,
10436                                               phba->sli4_hba.cq_ecount, cpu);
10437         if (!qdesc) {
10438                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10439                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
10440                                 idx);
10441                 return 1;
10442         }
10443         qdesc->qe_valid = 1;
10444         qdesc->hdwq = idx;
10445         qdesc->chann = cpu;
10446         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10447
10448         /* Create Fast Path IO WQs */
10449         if (phba->enab_exp_wqcq_pages) {
10450                 /* Increase the WQ size when WQEs contain an embedded cdb */
10451                 wqesize = (phba->fcp_embed_io) ?
10452                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10453                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10454                                               wqesize,
10455                                               LPFC_WQE_EXP_COUNT, cpu);
10456         } else
10457                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10458                                               phba->sli4_hba.wq_esize,
10459                                               phba->sli4_hba.wq_ecount, cpu);
10460
10461         if (!qdesc) {
10462                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10463                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
10464                                 idx);
10465                 return 1;
10466         }
10467         qdesc->hdwq = idx;
10468         qdesc->chann = cpu;
10469         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10470         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10471         return 0;
10472 }
10473
10474 /**
10475  * lpfc_sli4_queue_create - Create all the SLI4 queues
10476  * @phba: pointer to lpfc hba data structure.
10477  *
10478  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10479  * operation. For each SLI4 queue type, the parameters such as queue entry
10480  * count (queue depth) shall be taken from the module parameter. For now,
10481  * we just use some constant number as place holder.
10482  *
10483  * Return codes
10484  *      0 - successful
10485  *      -ENOMEM - No availble memory
10486  *      -EIO - The mailbox failed to complete successfully.
10487  **/
10488 int
10489 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10490 {
10491         struct lpfc_queue *qdesc;
10492         int idx, cpu, eqcpu;
10493         struct lpfc_sli4_hdw_queue *qp;
10494         struct lpfc_vector_map_info *cpup;
10495         struct lpfc_vector_map_info *eqcpup;
10496         struct lpfc_eq_intr_info *eqi;
10497
10498         /*
10499          * Create HBA Record arrays.
10500          * Both NVME and FCP will share that same vectors / EQs
10501          */
10502         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10503         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10504         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10505         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10506         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10507         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10508         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10509         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10510         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10511         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10512
10513         if (!phba->sli4_hba.hdwq) {
10514                 phba->sli4_hba.hdwq = kcalloc(
10515                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10516                         GFP_KERNEL);
10517                 if (!phba->sli4_hba.hdwq) {
10518                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10519                                         "6427 Failed allocate memory for "
10520                                         "fast-path Hardware Queue array\n");
10521                         goto out_error;
10522                 }
10523                 /* Prepare hardware queues to take IO buffers */
10524                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10525                         qp = &phba->sli4_hba.hdwq[idx];
10526                         spin_lock_init(&qp->io_buf_list_get_lock);
10527                         spin_lock_init(&qp->io_buf_list_put_lock);
10528                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10529                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10530                         qp->get_io_bufs = 0;
10531                         qp->put_io_bufs = 0;
10532                         qp->total_io_bufs = 0;
10533                         spin_lock_init(&qp->abts_io_buf_list_lock);
10534                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10535                         qp->abts_scsi_io_bufs = 0;
10536                         qp->abts_nvme_io_bufs = 0;
10537                         INIT_LIST_HEAD(&qp->sgl_list);
10538                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10539                         spin_lock_init(&qp->hdwq_lock);
10540                 }
10541         }
10542
10543         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10544                 if (phba->nvmet_support) {
10545                         phba->sli4_hba.nvmet_cqset = kcalloc(
10546                                         phba->cfg_nvmet_mrq,
10547                                         sizeof(struct lpfc_queue *),
10548                                         GFP_KERNEL);
10549                         if (!phba->sli4_hba.nvmet_cqset) {
10550                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10551                                         "3121 Fail allocate memory for "
10552                                         "fast-path CQ set array\n");
10553                                 goto out_error;
10554                         }
10555                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10556                                         phba->cfg_nvmet_mrq,
10557                                         sizeof(struct lpfc_queue *),
10558                                         GFP_KERNEL);
10559                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
10560                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10561                                         "3122 Fail allocate memory for "
10562                                         "fast-path RQ set hdr array\n");
10563                                 goto out_error;
10564                         }
10565                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
10566                                         phba->cfg_nvmet_mrq,
10567                                         sizeof(struct lpfc_queue *),
10568                                         GFP_KERNEL);
10569                         if (!phba->sli4_hba.nvmet_mrq_data) {
10570                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10571                                         "3124 Fail allocate memory for "
10572                                         "fast-path RQ set data array\n");
10573                                 goto out_error;
10574                         }
10575                 }
10576         }
10577
10578         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10579
10580         /* Create HBA Event Queues (EQs) */
10581         for_each_present_cpu(cpu) {
10582                 /* We only want to create 1 EQ per vector, even though
10583                  * multiple CPUs might be using that vector. so only
10584                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10585                  */
10586                 cpup = &phba->sli4_hba.cpu_map[cpu];
10587                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10588                         continue;
10589
10590                 /* Get a ptr to the Hardware Queue associated with this CPU */
10591                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10592
10593                 /* Allocate an EQ */
10594                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10595                                               phba->sli4_hba.eq_esize,
10596                                               phba->sli4_hba.eq_ecount, cpu);
10597                 if (!qdesc) {
10598                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10599                                         "0497 Failed allocate EQ (%d)\n",
10600                                         cpup->hdwq);
10601                         goto out_error;
10602                 }
10603                 qdesc->qe_valid = 1;
10604                 qdesc->hdwq = cpup->hdwq;
10605                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10606                 qdesc->last_cpu = qdesc->chann;
10607
10608                 /* Save the allocated EQ in the Hardware Queue */
10609                 qp->hba_eq = qdesc;
10610
10611                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10612                 list_add(&qdesc->cpu_list, &eqi->list);
10613         }
10614
10615         /* Now we need to populate the other Hardware Queues, that share
10616          * an IRQ vector, with the associated EQ ptr.
10617          */
10618         for_each_present_cpu(cpu) {
10619                 cpup = &phba->sli4_hba.cpu_map[cpu];
10620
10621                 /* Check for EQ already allocated in previous loop */
10622                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10623                         continue;
10624
10625                 /* Check for multiple CPUs per hdwq */
10626                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10627                 if (qp->hba_eq)
10628                         continue;
10629
10630                 /* We need to share an EQ for this hdwq */
10631                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10632                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10633                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10634         }
10635
10636         /* Allocate IO Path SLI4 CQ/WQs */
10637         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10638                 if (lpfc_alloc_io_wq_cq(phba, idx))
10639                         goto out_error;
10640         }
10641
10642         if (phba->nvmet_support) {
10643                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10644                         cpu = lpfc_find_cpu_handle(phba, idx,
10645                                                    LPFC_FIND_BY_HDWQ);
10646                         qdesc = lpfc_sli4_queue_alloc(phba,
10647                                                       LPFC_DEFAULT_PAGE_SIZE,
10648                                                       phba->sli4_hba.cq_esize,
10649                                                       phba->sli4_hba.cq_ecount,
10650                                                       cpu);
10651                         if (!qdesc) {
10652                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10653                                                 "3142 Failed allocate NVME "
10654                                                 "CQ Set (%d)\n", idx);
10655                                 goto out_error;
10656                         }
10657                         qdesc->qe_valid = 1;
10658                         qdesc->hdwq = idx;
10659                         qdesc->chann = cpu;
10660                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10661                 }
10662         }
10663
10664         /*
10665          * Create Slow Path Completion Queues (CQs)
10666          */
10667
10668         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10669         /* Create slow-path Mailbox Command Complete Queue */
10670         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10671                                       phba->sli4_hba.cq_esize,
10672                                       phba->sli4_hba.cq_ecount, cpu);
10673         if (!qdesc) {
10674                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10675                                 "0500 Failed allocate slow-path mailbox CQ\n");
10676                 goto out_error;
10677         }
10678         qdesc->qe_valid = 1;
10679         phba->sli4_hba.mbx_cq = qdesc;
10680
10681         /* Create slow-path ELS Complete Queue */
10682         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10683                                       phba->sli4_hba.cq_esize,
10684                                       phba->sli4_hba.cq_ecount, cpu);
10685         if (!qdesc) {
10686                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10687                                 "0501 Failed allocate slow-path ELS CQ\n");
10688                 goto out_error;
10689         }
10690         qdesc->qe_valid = 1;
10691         qdesc->chann = cpu;
10692         phba->sli4_hba.els_cq = qdesc;
10693
10694
10695         /*
10696          * Create Slow Path Work Queues (WQs)
10697          */
10698
10699         /* Create Mailbox Command Queue */
10700
10701         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10702                                       phba->sli4_hba.mq_esize,
10703                                       phba->sli4_hba.mq_ecount, cpu);
10704         if (!qdesc) {
10705                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10706                                 "0505 Failed allocate slow-path MQ\n");
10707                 goto out_error;
10708         }
10709         qdesc->chann = cpu;
10710         phba->sli4_hba.mbx_wq = qdesc;
10711
10712         /*
10713          * Create ELS Work Queues
10714          */
10715
10716         /* Create slow-path ELS Work Queue */
10717         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10718                                       phba->sli4_hba.wq_esize,
10719                                       phba->sli4_hba.wq_ecount, cpu);
10720         if (!qdesc) {
10721                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10722                                 "0504 Failed allocate slow-path ELS WQ\n");
10723                 goto out_error;
10724         }
10725         qdesc->chann = cpu;
10726         phba->sli4_hba.els_wq = qdesc;
10727         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10728
10729         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10730                 /* Create NVME LS Complete Queue */
10731                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10732                                               phba->sli4_hba.cq_esize,
10733                                               phba->sli4_hba.cq_ecount, cpu);
10734                 if (!qdesc) {
10735                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10736                                         "6079 Failed allocate NVME LS CQ\n");
10737                         goto out_error;
10738                 }
10739                 qdesc->chann = cpu;
10740                 qdesc->qe_valid = 1;
10741                 phba->sli4_hba.nvmels_cq = qdesc;
10742
10743                 /* Create NVME LS Work Queue */
10744                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10745                                               phba->sli4_hba.wq_esize,
10746                                               phba->sli4_hba.wq_ecount, cpu);
10747                 if (!qdesc) {
10748                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10749                                         "6080 Failed allocate NVME LS WQ\n");
10750                         goto out_error;
10751                 }
10752                 qdesc->chann = cpu;
10753                 phba->sli4_hba.nvmels_wq = qdesc;
10754                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10755         }
10756
10757         /*
10758          * Create Receive Queue (RQ)
10759          */
10760
10761         /* Create Receive Queue for header */
10762         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10763                                       phba->sli4_hba.rq_esize,
10764                                       phba->sli4_hba.rq_ecount, cpu);
10765         if (!qdesc) {
10766                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10767                                 "0506 Failed allocate receive HRQ\n");
10768                 goto out_error;
10769         }
10770         phba->sli4_hba.hdr_rq = qdesc;
10771
10772         /* Create Receive Queue for data */
10773         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10774                                       phba->sli4_hba.rq_esize,
10775                                       phba->sli4_hba.rq_ecount, cpu);
10776         if (!qdesc) {
10777                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10778                                 "0507 Failed allocate receive DRQ\n");
10779                 goto out_error;
10780         }
10781         phba->sli4_hba.dat_rq = qdesc;
10782
10783         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10784             phba->nvmet_support) {
10785                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10786                         cpu = lpfc_find_cpu_handle(phba, idx,
10787                                                    LPFC_FIND_BY_HDWQ);
10788                         /* Create NVMET Receive Queue for header */
10789                         qdesc = lpfc_sli4_queue_alloc(phba,
10790                                                       LPFC_DEFAULT_PAGE_SIZE,
10791                                                       phba->sli4_hba.rq_esize,
10792                                                       LPFC_NVMET_RQE_DEF_COUNT,
10793                                                       cpu);
10794                         if (!qdesc) {
10795                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10796                                                 "3146 Failed allocate "
10797                                                 "receive HRQ\n");
10798                                 goto out_error;
10799                         }
10800                         qdesc->hdwq = idx;
10801                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10802
10803                         /* Only needed for header of RQ pair */
10804                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10805                                                    GFP_KERNEL,
10806                                                    cpu_to_node(cpu));
10807                         if (qdesc->rqbp == NULL) {
10808                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10809                                                 "6131 Failed allocate "
10810                                                 "Header RQBP\n");
10811                                 goto out_error;
10812                         }
10813
10814                         /* Put list in known state in case driver load fails. */
10815                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10816
10817                         /* Create NVMET Receive Queue for data */
10818                         qdesc = lpfc_sli4_queue_alloc(phba,
10819                                                       LPFC_DEFAULT_PAGE_SIZE,
10820                                                       phba->sli4_hba.rq_esize,
10821                                                       LPFC_NVMET_RQE_DEF_COUNT,
10822                                                       cpu);
10823                         if (!qdesc) {
10824                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10825                                                 "3156 Failed allocate "
10826                                                 "receive DRQ\n");
10827                                 goto out_error;
10828                         }
10829                         qdesc->hdwq = idx;
10830                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10831                 }
10832         }
10833
10834         /* Clear NVME stats */
10835         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10836                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10837                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10838                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10839                 }
10840         }
10841
10842         /* Clear SCSI stats */
10843         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10844                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10845                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10846                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10847                 }
10848         }
10849
10850         return 0;
10851
10852 out_error:
10853         lpfc_sli4_queue_destroy(phba);
10854         return -ENOMEM;
10855 }
10856
10857 static inline void
10858 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10859 {
10860         if (*qp != NULL) {
10861                 lpfc_sli4_queue_free(*qp);
10862                 *qp = NULL;
10863         }
10864 }
10865
10866 static inline void
10867 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10868 {
10869         int idx;
10870
10871         if (*qs == NULL)
10872                 return;
10873
10874         for (idx = 0; idx < max; idx++)
10875                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10876
10877         kfree(*qs);
10878         *qs = NULL;
10879 }
10880
10881 static inline void
10882 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10883 {
10884         struct lpfc_sli4_hdw_queue *hdwq;
10885         struct lpfc_queue *eq;
10886         uint32_t idx;
10887
10888         hdwq = phba->sli4_hba.hdwq;
10889
10890         /* Loop thru all Hardware Queues */
10891         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10892                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10893                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10894                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10895                 hdwq[idx].hba_eq = NULL;
10896                 hdwq[idx].io_cq = NULL;
10897                 hdwq[idx].io_wq = NULL;
10898                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10899                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10900                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10901         }
10902         /* Loop thru all IRQ vectors */
10903         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10904                 /* Free the EQ corresponding to the IRQ vector */
10905                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10906                 lpfc_sli4_queue_free(eq);
10907                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10908         }
10909 }
10910
10911 /**
10912  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10913  * @phba: pointer to lpfc hba data structure.
10914  *
10915  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10916  * operation.
10917  *
10918  * Return codes
10919  *      0 - successful
10920  *      -ENOMEM - No available memory
10921  *      -EIO - The mailbox failed to complete successfully.
10922  **/
10923 void
10924 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10925 {
10926         /*
10927          * Set FREE_INIT before beginning to free the queues.
10928          * Wait until the users of queues to acknowledge to
10929          * release queues by clearing FREE_WAIT.
10930          */
10931         spin_lock_irq(&phba->hbalock);
10932         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10933         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10934                 spin_unlock_irq(&phba->hbalock);
10935                 msleep(20);
10936                 spin_lock_irq(&phba->hbalock);
10937         }
10938         spin_unlock_irq(&phba->hbalock);
10939
10940         lpfc_sli4_cleanup_poll_list(phba);
10941
10942         /* Release HBA eqs */
10943         if (phba->sli4_hba.hdwq)
10944                 lpfc_sli4_release_hdwq(phba);
10945
10946         if (phba->nvmet_support) {
10947                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10948                                          phba->cfg_nvmet_mrq);
10949
10950                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10951                                          phba->cfg_nvmet_mrq);
10952                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10953                                          phba->cfg_nvmet_mrq);
10954         }
10955
10956         /* Release mailbox command work queue */
10957         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10958
10959         /* Release ELS work queue */
10960         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10961
10962         /* Release ELS work queue */
10963         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10964
10965         /* Release unsolicited receive queue */
10966         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10967         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10968
10969         /* Release ELS complete queue */
10970         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10971
10972         /* Release NVME LS complete queue */
10973         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10974
10975         /* Release mailbox command complete queue */
10976         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10977
10978         /* Everything on this list has been freed */
10979         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10980
10981         /* Done with freeing the queues */
10982         spin_lock_irq(&phba->hbalock);
10983         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10984         spin_unlock_irq(&phba->hbalock);
10985 }
10986
10987 int
10988 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10989 {
10990         struct lpfc_rqb *rqbp;
10991         struct lpfc_dmabuf *h_buf;
10992         struct rqb_dmabuf *rqb_buffer;
10993
10994         rqbp = rq->rqbp;
10995         while (!list_empty(&rqbp->rqb_buffer_list)) {
10996                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10997                                  struct lpfc_dmabuf, list);
10998
10999                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
11000                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
11001                 rqbp->buffer_count--;
11002         }
11003         return 1;
11004 }
11005
11006 static int
11007 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
11008         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
11009         int qidx, uint32_t qtype)
11010 {
11011         struct lpfc_sli_ring *pring;
11012         int rc;
11013
11014         if (!eq || !cq || !wq) {
11015                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11016                         "6085 Fast-path %s (%d) not allocated\n",
11017                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
11018                 return -ENOMEM;
11019         }
11020
11021         /* create the Cq first */
11022         rc = lpfc_cq_create(phba, cq, eq,
11023                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
11024         if (rc) {
11025                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11026                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
11027                                 qidx, (uint32_t)rc);
11028                 return rc;
11029         }
11030
11031         if (qtype != LPFC_MBOX) {
11032                 /* Setup cq_map for fast lookup */
11033                 if (cq_map)
11034                         *cq_map = cq->queue_id;
11035
11036                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11037                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
11038                         qidx, cq->queue_id, qidx, eq->queue_id);
11039
11040                 /* create the wq */
11041                 rc = lpfc_wq_create(phba, wq, cq, qtype);
11042                 if (rc) {
11043                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11044                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
11045                                 qidx, (uint32_t)rc);
11046                         /* no need to tear down cq - caller will do so */
11047                         return rc;
11048                 }
11049
11050                 /* Bind this CQ/WQ to the NVME ring */
11051                 pring = wq->pring;
11052                 pring->sli.sli4.wqp = (void *)wq;
11053                 cq->pring = pring;
11054
11055                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11056                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
11057                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
11058         } else {
11059                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
11060                 if (rc) {
11061                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11062                                         "0539 Failed setup of slow-path MQ: "
11063                                         "rc = 0x%x\n", rc);
11064                         /* no need to tear down cq - caller will do so */
11065                         return rc;
11066                 }
11067
11068                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11069                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
11070                         phba->sli4_hba.mbx_wq->queue_id,
11071                         phba->sli4_hba.mbx_cq->queue_id);
11072         }
11073
11074         return 0;
11075 }
11076
11077 /**
11078  * lpfc_setup_cq_lookup - Setup the CQ lookup table
11079  * @phba: pointer to lpfc hba data structure.
11080  *
11081  * This routine will populate the cq_lookup table by all
11082  * available CQ queue_id's.
11083  **/
11084 static void
11085 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
11086 {
11087         struct lpfc_queue *eq, *childq;
11088         int qidx;
11089
11090         memset(phba->sli4_hba.cq_lookup, 0,
11091                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
11092         /* Loop thru all IRQ vectors */
11093         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11094                 /* Get the EQ corresponding to the IRQ vector */
11095                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11096                 if (!eq)
11097                         continue;
11098                 /* Loop through all CQs associated with that EQ */
11099                 list_for_each_entry(childq, &eq->child_list, list) {
11100                         if (childq->queue_id > phba->sli4_hba.cq_max)
11101                                 continue;
11102                         if (childq->subtype == LPFC_IO)
11103                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
11104                                         childq;
11105                 }
11106         }
11107 }
11108
11109 /**
11110  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
11111  * @phba: pointer to lpfc hba data structure.
11112  *
11113  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
11114  * operation.
11115  *
11116  * Return codes
11117  *      0 - successful
11118  *      -ENOMEM - No available memory
11119  *      -EIO - The mailbox failed to complete successfully.
11120  **/
11121 int
11122 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
11123 {
11124         uint32_t shdr_status, shdr_add_status;
11125         union lpfc_sli4_cfg_shdr *shdr;
11126         struct lpfc_vector_map_info *cpup;
11127         struct lpfc_sli4_hdw_queue *qp;
11128         LPFC_MBOXQ_t *mboxq;
11129         int qidx, cpu;
11130         uint32_t length, usdelay;
11131         int rc = -ENOMEM;
11132
11133         /* Check for dual-ULP support */
11134         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11135         if (!mboxq) {
11136                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11137                                 "3249 Unable to allocate memory for "
11138                                 "QUERY_FW_CFG mailbox command\n");
11139                 return -ENOMEM;
11140         }
11141         length = (sizeof(struct lpfc_mbx_query_fw_config) -
11142                   sizeof(struct lpfc_sli4_cfg_mhdr));
11143         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11144                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
11145                          length, LPFC_SLI4_MBX_EMBED);
11146
11147         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11148
11149         shdr = (union lpfc_sli4_cfg_shdr *)
11150                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11151         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11152         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11153         if (shdr_status || shdr_add_status || rc) {
11154                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11155                                 "3250 QUERY_FW_CFG mailbox failed with status "
11156                                 "x%x add_status x%x, mbx status x%x\n",
11157                                 shdr_status, shdr_add_status, rc);
11158                 mempool_free(mboxq, phba->mbox_mem_pool);
11159                 rc = -ENXIO;
11160                 goto out_error;
11161         }
11162
11163         phba->sli4_hba.fw_func_mode =
11164                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
11165         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
11166         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
11167         phba->sli4_hba.physical_port =
11168                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
11169         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11170                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
11171                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
11172                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
11173
11174         mempool_free(mboxq, phba->mbox_mem_pool);
11175
11176         /*
11177          * Set up HBA Event Queues (EQs)
11178          */
11179         qp = phba->sli4_hba.hdwq;
11180
11181         /* Set up HBA event queue */
11182         if (!qp) {
11183                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11184                                 "3147 Fast-path EQs not allocated\n");
11185                 rc = -ENOMEM;
11186                 goto out_error;
11187         }
11188
11189         /* Loop thru all IRQ vectors */
11190         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11191                 /* Create HBA Event Queues (EQs) in order */
11192                 for_each_present_cpu(cpu) {
11193                         cpup = &phba->sli4_hba.cpu_map[cpu];
11194
11195                         /* Look for the CPU thats using that vector with
11196                          * LPFC_CPU_FIRST_IRQ set.
11197                          */
11198                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11199                                 continue;
11200                         if (qidx != cpup->eq)
11201                                 continue;
11202
11203                         /* Create an EQ for that vector */
11204                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11205                                             phba->cfg_fcp_imax);
11206                         if (rc) {
11207                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11208                                                 "0523 Failed setup of fast-path"
11209                                                 " EQ (%d), rc = 0x%x\n",
11210                                                 cpup->eq, (uint32_t)rc);
11211                                 goto out_destroy;
11212                         }
11213
11214                         /* Save the EQ for that vector in the hba_eq_hdl */
11215                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11216                                 qp[cpup->hdwq].hba_eq;
11217
11218                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11219                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
11220                                         cpup->eq,
11221                                         qp[cpup->hdwq].hba_eq->queue_id);
11222                 }
11223         }
11224
11225         /* Loop thru all Hardware Queues */
11226         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11227                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11228                 cpup = &phba->sli4_hba.cpu_map[cpu];
11229
11230                 /* Create the CQ/WQ corresponding to the Hardware Queue */
11231                 rc = lpfc_create_wq_cq(phba,
11232                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11233                                        qp[qidx].io_cq,
11234                                        qp[qidx].io_wq,
11235                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
11236                                        qidx,
11237                                        LPFC_IO);
11238                 if (rc) {
11239                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11240                                         "0535 Failed to setup fastpath "
11241                                         "IO WQ/CQ (%d), rc = 0x%x\n",
11242                                         qidx, (uint32_t)rc);
11243                         goto out_destroy;
11244                 }
11245         }
11246
11247         /*
11248          * Set up Slow Path Complete Queues (CQs)
11249          */
11250
11251         /* Set up slow-path MBOX CQ/MQ */
11252
11253         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11254                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11255                                 "0528 %s not allocated\n",
11256                                 phba->sli4_hba.mbx_cq ?
11257                                 "Mailbox WQ" : "Mailbox CQ");
11258                 rc = -ENOMEM;
11259                 goto out_destroy;
11260         }
11261
11262         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11263                                phba->sli4_hba.mbx_cq,
11264                                phba->sli4_hba.mbx_wq,
11265                                NULL, 0, LPFC_MBOX);
11266         if (rc) {
11267                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11268                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11269                         (uint32_t)rc);
11270                 goto out_destroy;
11271         }
11272         if (phba->nvmet_support) {
11273                 if (!phba->sli4_hba.nvmet_cqset) {
11274                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11275                                         "3165 Fast-path NVME CQ Set "
11276                                         "array not allocated\n");
11277                         rc = -ENOMEM;
11278                         goto out_destroy;
11279                 }
11280                 if (phba->cfg_nvmet_mrq > 1) {
11281                         rc = lpfc_cq_create_set(phba,
11282                                         phba->sli4_hba.nvmet_cqset,
11283                                         qp,
11284                                         LPFC_WCQ, LPFC_NVMET);
11285                         if (rc) {
11286                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11287                                                 "3164 Failed setup of NVME CQ "
11288                                                 "Set, rc = 0x%x\n",
11289                                                 (uint32_t)rc);
11290                                 goto out_destroy;
11291                         }
11292                 } else {
11293                         /* Set up NVMET Receive Complete Queue */
11294                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11295                                             qp[0].hba_eq,
11296                                             LPFC_WCQ, LPFC_NVMET);
11297                         if (rc) {
11298                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11299                                                 "6089 Failed setup NVMET CQ: "
11300                                                 "rc = 0x%x\n", (uint32_t)rc);
11301                                 goto out_destroy;
11302                         }
11303                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11304
11305                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11306                                         "6090 NVMET CQ setup: cq-id=%d, "
11307                                         "parent eq-id=%d\n",
11308                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
11309                                         qp[0].hba_eq->queue_id);
11310                 }
11311         }
11312
11313         /* Set up slow-path ELS WQ/CQ */
11314         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11315                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11316                                 "0530 ELS %s not allocated\n",
11317                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11318                 rc = -ENOMEM;
11319                 goto out_destroy;
11320         }
11321         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11322                                phba->sli4_hba.els_cq,
11323                                phba->sli4_hba.els_wq,
11324                                NULL, 0, LPFC_ELS);
11325         if (rc) {
11326                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11327                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11328                                 (uint32_t)rc);
11329                 goto out_destroy;
11330         }
11331         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11332                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11333                         phba->sli4_hba.els_wq->queue_id,
11334                         phba->sli4_hba.els_cq->queue_id);
11335
11336         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11337                 /* Set up NVME LS Complete Queue */
11338                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11339                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11340                                         "6091 LS %s not allocated\n",
11341                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11342                         rc = -ENOMEM;
11343                         goto out_destroy;
11344                 }
11345                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11346                                        phba->sli4_hba.nvmels_cq,
11347                                        phba->sli4_hba.nvmels_wq,
11348                                        NULL, 0, LPFC_NVME_LS);
11349                 if (rc) {
11350                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11351                                         "0526 Failed setup of NVVME LS WQ/CQ: "
11352                                         "rc = 0x%x\n", (uint32_t)rc);
11353                         goto out_destroy;
11354                 }
11355
11356                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11357                                 "6096 ELS WQ setup: wq-id=%d, "
11358                                 "parent cq-id=%d\n",
11359                                 phba->sli4_hba.nvmels_wq->queue_id,
11360                                 phba->sli4_hba.nvmels_cq->queue_id);
11361         }
11362
11363         /*
11364          * Create NVMET Receive Queue (RQ)
11365          */
11366         if (phba->nvmet_support) {
11367                 if ((!phba->sli4_hba.nvmet_cqset) ||
11368                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
11369                     (!phba->sli4_hba.nvmet_mrq_data)) {
11370                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11371                                         "6130 MRQ CQ Queues not "
11372                                         "allocated\n");
11373                         rc = -ENOMEM;
11374                         goto out_destroy;
11375                 }
11376                 if (phba->cfg_nvmet_mrq > 1) {
11377                         rc = lpfc_mrq_create(phba,
11378                                              phba->sli4_hba.nvmet_mrq_hdr,
11379                                              phba->sli4_hba.nvmet_mrq_data,
11380                                              phba->sli4_hba.nvmet_cqset,
11381                                              LPFC_NVMET);
11382                         if (rc) {
11383                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11384                                                 "6098 Failed setup of NVMET "
11385                                                 "MRQ: rc = 0x%x\n",
11386                                                 (uint32_t)rc);
11387                                 goto out_destroy;
11388                         }
11389
11390                 } else {
11391                         rc = lpfc_rq_create(phba,
11392                                             phba->sli4_hba.nvmet_mrq_hdr[0],
11393                                             phba->sli4_hba.nvmet_mrq_data[0],
11394                                             phba->sli4_hba.nvmet_cqset[0],
11395                                             LPFC_NVMET);
11396                         if (rc) {
11397                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11398                                                 "6057 Failed setup of NVMET "
11399                                                 "Receive Queue: rc = 0x%x\n",
11400                                                 (uint32_t)rc);
11401                                 goto out_destroy;
11402                         }
11403
11404                         lpfc_printf_log(
11405                                 phba, KERN_INFO, LOG_INIT,
11406                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11407                                 "dat-rq-id=%d parent cq-id=%d\n",
11408                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11409                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11410                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11411
11412                 }
11413         }
11414
11415         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11416                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11417                                 "0540 Receive Queue not allocated\n");
11418                 rc = -ENOMEM;
11419                 goto out_destroy;
11420         }
11421
11422         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11423                             phba->sli4_hba.els_cq, LPFC_USOL);
11424         if (rc) {
11425                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11426                                 "0541 Failed setup of Receive Queue: "
11427                                 "rc = 0x%x\n", (uint32_t)rc);
11428                 goto out_destroy;
11429         }
11430
11431         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11432                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11433                         "parent cq-id=%d\n",
11434                         phba->sli4_hba.hdr_rq->queue_id,
11435                         phba->sli4_hba.dat_rq->queue_id,
11436                         phba->sli4_hba.els_cq->queue_id);
11437
11438         if (phba->cfg_fcp_imax)
11439                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11440         else
11441                 usdelay = 0;
11442
11443         for (qidx = 0; qidx < phba->cfg_irq_chann;
11444              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11445                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11446                                          usdelay);
11447
11448         if (phba->sli4_hba.cq_max) {
11449                 kfree(phba->sli4_hba.cq_lookup);
11450                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11451                         sizeof(struct lpfc_queue *), GFP_KERNEL);
11452                 if (!phba->sli4_hba.cq_lookup) {
11453                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11454                                         "0549 Failed setup of CQ Lookup table: "
11455                                         "size 0x%x\n", phba->sli4_hba.cq_max);
11456                         rc = -ENOMEM;
11457                         goto out_destroy;
11458                 }
11459                 lpfc_setup_cq_lookup(phba);
11460         }
11461         return 0;
11462
11463 out_destroy:
11464         lpfc_sli4_queue_unset(phba);
11465 out_error:
11466         return rc;
11467 }
11468
11469 /**
11470  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11471  * @phba: pointer to lpfc hba data structure.
11472  *
11473  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11474  * operation.
11475  *
11476  * Return codes
11477  *      0 - successful
11478  *      -ENOMEM - No available memory
11479  *      -EIO - The mailbox failed to complete successfully.
11480  **/
11481 void
11482 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11483 {
11484         struct lpfc_sli4_hdw_queue *qp;
11485         struct lpfc_queue *eq;
11486         int qidx;
11487
11488         /* Unset mailbox command work queue */
11489         if (phba->sli4_hba.mbx_wq)
11490                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11491
11492         /* Unset NVME LS work queue */
11493         if (phba->sli4_hba.nvmels_wq)
11494                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11495
11496         /* Unset ELS work queue */
11497         if (phba->sli4_hba.els_wq)
11498                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11499
11500         /* Unset unsolicited receive queue */
11501         if (phba->sli4_hba.hdr_rq)
11502                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11503                                 phba->sli4_hba.dat_rq);
11504
11505         /* Unset mailbox command complete queue */
11506         if (phba->sli4_hba.mbx_cq)
11507                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11508
11509         /* Unset ELS complete queue */
11510         if (phba->sli4_hba.els_cq)
11511                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11512
11513         /* Unset NVME LS complete queue */
11514         if (phba->sli4_hba.nvmels_cq)
11515                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11516
11517         if (phba->nvmet_support) {
11518                 /* Unset NVMET MRQ queue */
11519                 if (phba->sli4_hba.nvmet_mrq_hdr) {
11520                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11521                                 lpfc_rq_destroy(
11522                                         phba,
11523                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
11524                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
11525                 }
11526
11527                 /* Unset NVMET CQ Set complete queue */
11528                 if (phba->sli4_hba.nvmet_cqset) {
11529                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11530                                 lpfc_cq_destroy(
11531                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
11532                 }
11533         }
11534
11535         /* Unset fast-path SLI4 queues */
11536         if (phba->sli4_hba.hdwq) {
11537                 /* Loop thru all Hardware Queues */
11538                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11539                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
11540                         qp = &phba->sli4_hba.hdwq[qidx];
11541                         lpfc_wq_destroy(phba, qp->io_wq);
11542                         lpfc_cq_destroy(phba, qp->io_cq);
11543                 }
11544                 /* Loop thru all IRQ vectors */
11545                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11546                         /* Destroy the EQ corresponding to the IRQ vector */
11547                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11548                         lpfc_eq_destroy(phba, eq);
11549                 }
11550         }
11551
11552         kfree(phba->sli4_hba.cq_lookup);
11553         phba->sli4_hba.cq_lookup = NULL;
11554         phba->sli4_hba.cq_max = 0;
11555 }
11556
11557 /**
11558  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11559  * @phba: pointer to lpfc hba data structure.
11560  *
11561  * This routine is invoked to allocate and set up a pool of completion queue
11562  * events. The body of the completion queue event is a completion queue entry
11563  * CQE. For now, this pool is used for the interrupt service routine to queue
11564  * the following HBA completion queue events for the worker thread to process:
11565  *   - Mailbox asynchronous events
11566  *   - Receive queue completion unsolicited events
11567  * Later, this can be used for all the slow-path events.
11568  *
11569  * Return codes
11570  *      0 - successful
11571  *      -ENOMEM - No available memory
11572  **/
11573 static int
11574 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11575 {
11576         struct lpfc_cq_event *cq_event;
11577         int i;
11578
11579         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11580                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11581                 if (!cq_event)
11582                         goto out_pool_create_fail;
11583                 list_add_tail(&cq_event->list,
11584                               &phba->sli4_hba.sp_cqe_event_pool);
11585         }
11586         return 0;
11587
11588 out_pool_create_fail:
11589         lpfc_sli4_cq_event_pool_destroy(phba);
11590         return -ENOMEM;
11591 }
11592
11593 /**
11594  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11595  * @phba: pointer to lpfc hba data structure.
11596  *
11597  * This routine is invoked to free the pool of completion queue events at
11598  * driver unload time. Note that, it is the responsibility of the driver
11599  * cleanup routine to free all the outstanding completion-queue events
11600  * allocated from this pool back into the pool before invoking this routine
11601  * to destroy the pool.
11602  **/
11603 static void
11604 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11605 {
11606         struct lpfc_cq_event *cq_event, *next_cq_event;
11607
11608         list_for_each_entry_safe(cq_event, next_cq_event,
11609                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
11610                 list_del(&cq_event->list);
11611                 kfree(cq_event);
11612         }
11613 }
11614
11615 /**
11616  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11617  * @phba: pointer to lpfc hba data structure.
11618  *
11619  * This routine is the lock free version of the API invoked to allocate a
11620  * completion-queue event from the free pool.
11621  *
11622  * Return: Pointer to the newly allocated completion-queue event if successful
11623  *         NULL otherwise.
11624  **/
11625 struct lpfc_cq_event *
11626 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11627 {
11628         struct lpfc_cq_event *cq_event = NULL;
11629
11630         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11631                          struct lpfc_cq_event, list);
11632         return cq_event;
11633 }
11634
11635 /**
11636  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11637  * @phba: pointer to lpfc hba data structure.
11638  *
11639  * This routine is the lock version of the API invoked to allocate a
11640  * completion-queue event from the free pool.
11641  *
11642  * Return: Pointer to the newly allocated completion-queue event if successful
11643  *         NULL otherwise.
11644  **/
11645 struct lpfc_cq_event *
11646 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11647 {
11648         struct lpfc_cq_event *cq_event;
11649         unsigned long iflags;
11650
11651         spin_lock_irqsave(&phba->hbalock, iflags);
11652         cq_event = __lpfc_sli4_cq_event_alloc(phba);
11653         spin_unlock_irqrestore(&phba->hbalock, iflags);
11654         return cq_event;
11655 }
11656
11657 /**
11658  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11659  * @phba: pointer to lpfc hba data structure.
11660  * @cq_event: pointer to the completion queue event to be freed.
11661  *
11662  * This routine is the lock free version of the API invoked to release a
11663  * completion-queue event back into the free pool.
11664  **/
11665 void
11666 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11667                              struct lpfc_cq_event *cq_event)
11668 {
11669         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11670 }
11671
11672 /**
11673  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11674  * @phba: pointer to lpfc hba data structure.
11675  * @cq_event: pointer to the completion queue event to be freed.
11676  *
11677  * This routine is the lock version of the API invoked to release a
11678  * completion-queue event back into the free pool.
11679  **/
11680 void
11681 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11682                            struct lpfc_cq_event *cq_event)
11683 {
11684         unsigned long iflags;
11685         spin_lock_irqsave(&phba->hbalock, iflags);
11686         __lpfc_sli4_cq_event_release(phba, cq_event);
11687         spin_unlock_irqrestore(&phba->hbalock, iflags);
11688 }
11689
11690 /**
11691  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11692  * @phba: pointer to lpfc hba data structure.
11693  *
11694  * This routine is to free all the pending completion-queue events to the
11695  * back into the free pool for device reset.
11696  **/
11697 static void
11698 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11699 {
11700         LIST_HEAD(cq_event_list);
11701         struct lpfc_cq_event *cq_event;
11702         unsigned long iflags;
11703
11704         /* Retrieve all the pending WCQEs from pending WCQE lists */
11705
11706         /* Pending ELS XRI abort events */
11707         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11708         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11709                          &cq_event_list);
11710         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11711
11712         /* Pending asynnc events */
11713         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11714         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11715                          &cq_event_list);
11716         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11717
11718         while (!list_empty(&cq_event_list)) {
11719                 list_remove_head(&cq_event_list, cq_event,
11720                                  struct lpfc_cq_event, list);
11721                 lpfc_sli4_cq_event_release(phba, cq_event);
11722         }
11723 }
11724
11725 /**
11726  * lpfc_pci_function_reset - Reset pci function.
11727  * @phba: pointer to lpfc hba data structure.
11728  *
11729  * This routine is invoked to request a PCI function reset. It will destroys
11730  * all resources assigned to the PCI function which originates this request.
11731  *
11732  * Return codes
11733  *      0 - successful
11734  *      -ENOMEM - No available memory
11735  *      -EIO - The mailbox failed to complete successfully.
11736  **/
11737 int
11738 lpfc_pci_function_reset(struct lpfc_hba *phba)
11739 {
11740         LPFC_MBOXQ_t *mboxq;
11741         uint32_t rc = 0, if_type;
11742         uint32_t shdr_status, shdr_add_status;
11743         uint32_t rdy_chk;
11744         uint32_t port_reset = 0;
11745         union lpfc_sli4_cfg_shdr *shdr;
11746         struct lpfc_register reg_data;
11747         uint16_t devid;
11748
11749         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11750         switch (if_type) {
11751         case LPFC_SLI_INTF_IF_TYPE_0:
11752                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11753                                                        GFP_KERNEL);
11754                 if (!mboxq) {
11755                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11756                                         "0494 Unable to allocate memory for "
11757                                         "issuing SLI_FUNCTION_RESET mailbox "
11758                                         "command\n");
11759                         return -ENOMEM;
11760                 }
11761
11762                 /* Setup PCI function reset mailbox-ioctl command */
11763                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11764                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11765                                  LPFC_SLI4_MBX_EMBED);
11766                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11767                 shdr = (union lpfc_sli4_cfg_shdr *)
11768                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11769                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11770                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11771                                          &shdr->response);
11772                 mempool_free(mboxq, phba->mbox_mem_pool);
11773                 if (shdr_status || shdr_add_status || rc) {
11774                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11775                                         "0495 SLI_FUNCTION_RESET mailbox "
11776                                         "failed with status x%x add_status x%x,"
11777                                         " mbx status x%x\n",
11778                                         shdr_status, shdr_add_status, rc);
11779                         rc = -ENXIO;
11780                 }
11781                 break;
11782         case LPFC_SLI_INTF_IF_TYPE_2:
11783         case LPFC_SLI_INTF_IF_TYPE_6:
11784 wait:
11785                 /*
11786                  * Poll the Port Status Register and wait for RDY for
11787                  * up to 30 seconds. If the port doesn't respond, treat
11788                  * it as an error.
11789                  */
11790                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11791                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11792                                 STATUSregaddr, &reg_data.word0)) {
11793                                 rc = -ENODEV;
11794                                 goto out;
11795                         }
11796                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11797                                 break;
11798                         msleep(20);
11799                 }
11800
11801                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11802                         phba->work_status[0] = readl(
11803                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11804                         phba->work_status[1] = readl(
11805                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11806                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11807                                         "2890 Port not ready, port status reg "
11808                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11809                                         reg_data.word0,
11810                                         phba->work_status[0],
11811                                         phba->work_status[1]);
11812                         rc = -ENODEV;
11813                         goto out;
11814                 }
11815
11816                 if (bf_get(lpfc_sliport_status_pldv, &reg_data))
11817                         lpfc_pldv_detect = true;
11818
11819                 if (!port_reset) {
11820                         /*
11821                          * Reset the port now
11822                          */
11823                         reg_data.word0 = 0;
11824                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11825                                LPFC_SLIPORT_LITTLE_ENDIAN);
11826                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11827                                LPFC_SLIPORT_INIT_PORT);
11828                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11829                                CTRLregaddr);
11830                         /* flush */
11831                         pci_read_config_word(phba->pcidev,
11832                                              PCI_DEVICE_ID, &devid);
11833
11834                         port_reset = 1;
11835                         msleep(20);
11836                         goto wait;
11837                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11838                         rc = -ENODEV;
11839                         goto out;
11840                 }
11841                 break;
11842
11843         case LPFC_SLI_INTF_IF_TYPE_1:
11844         default:
11845                 break;
11846         }
11847
11848 out:
11849         /* Catch the not-ready port failure after a port reset. */
11850         if (rc) {
11851                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11852                                 "3317 HBA not functional: IP Reset Failed "
11853                                 "try: echo fw_reset > board_mode\n");
11854                 rc = -ENODEV;
11855         }
11856
11857         return rc;
11858 }
11859
11860 /**
11861  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11862  * @phba: pointer to lpfc hba data structure.
11863  *
11864  * This routine is invoked to set up the PCI device memory space for device
11865  * with SLI-4 interface spec.
11866  *
11867  * Return codes
11868  *      0 - successful
11869  *      other values - error
11870  **/
11871 static int
11872 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11873 {
11874         struct pci_dev *pdev = phba->pcidev;
11875         unsigned long bar0map_len, bar1map_len, bar2map_len;
11876         int error;
11877         uint32_t if_type;
11878
11879         if (!pdev)
11880                 return -ENODEV;
11881
11882         /* Set the device DMA mask size */
11883         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11884         if (error)
11885                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11886         if (error)
11887                 return error;
11888
11889         /*
11890          * The BARs and register set definitions and offset locations are
11891          * dependent on the if_type.
11892          */
11893         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11894                                   &phba->sli4_hba.sli_intf.word0)) {
11895                 return -ENODEV;
11896         }
11897
11898         /* There is no SLI3 failback for SLI4 devices. */
11899         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11900             LPFC_SLI_INTF_VALID) {
11901                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11902                                 "2894 SLI_INTF reg contents invalid "
11903                                 "sli_intf reg 0x%x\n",
11904                                 phba->sli4_hba.sli_intf.word0);
11905                 return -ENODEV;
11906         }
11907
11908         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11909         /*
11910          * Get the bus address of SLI4 device Bar regions and the
11911          * number of bytes required by each mapping. The mapping of the
11912          * particular PCI BARs regions is dependent on the type of
11913          * SLI4 device.
11914          */
11915         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11916                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11917                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11918
11919                 /*
11920                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11921                  * addr
11922                  */
11923                 phba->sli4_hba.conf_regs_memmap_p =
11924                         ioremap(phba->pci_bar0_map, bar0map_len);
11925                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11926                         dev_printk(KERN_ERR, &pdev->dev,
11927                                    "ioremap failed for SLI4 PCI config "
11928                                    "registers.\n");
11929                         return -ENODEV;
11930                 }
11931                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11932                 /* Set up BAR0 PCI config space register memory map */
11933                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11934         } else {
11935                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11936                 bar0map_len = pci_resource_len(pdev, 1);
11937                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11938                         dev_printk(KERN_ERR, &pdev->dev,
11939                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11940                         return -ENODEV;
11941                 }
11942                 phba->sli4_hba.conf_regs_memmap_p =
11943                                 ioremap(phba->pci_bar0_map, bar0map_len);
11944                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11945                         dev_printk(KERN_ERR, &pdev->dev,
11946                                 "ioremap failed for SLI4 PCI config "
11947                                 "registers.\n");
11948                         return -ENODEV;
11949                 }
11950                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11951         }
11952
11953         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11954                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11955                         /*
11956                          * Map SLI4 if type 0 HBA Control Register base to a
11957                          * kernel virtual address and setup the registers.
11958                          */
11959                         phba->pci_bar1_map = pci_resource_start(pdev,
11960                                                                 PCI_64BIT_BAR2);
11961                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11962                         phba->sli4_hba.ctrl_regs_memmap_p =
11963                                         ioremap(phba->pci_bar1_map,
11964                                                 bar1map_len);
11965                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11966                                 dev_err(&pdev->dev,
11967                                            "ioremap failed for SLI4 HBA "
11968                                             "control registers.\n");
11969                                 error = -ENOMEM;
11970                                 goto out_iounmap_conf;
11971                         }
11972                         phba->pci_bar2_memmap_p =
11973                                          phba->sli4_hba.ctrl_regs_memmap_p;
11974                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11975                 } else {
11976                         error = -ENOMEM;
11977                         goto out_iounmap_conf;
11978                 }
11979         }
11980
11981         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11982             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11983                 /*
11984                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11985                  * virtual address and setup the registers.
11986                  */
11987                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11988                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11989                 phba->sli4_hba.drbl_regs_memmap_p =
11990                                 ioremap(phba->pci_bar1_map, bar1map_len);
11991                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11992                         dev_err(&pdev->dev,
11993                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11994                         error = -ENOMEM;
11995                         goto out_iounmap_conf;
11996                 }
11997                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11998                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11999         }
12000
12001         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
12002                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
12003                         /*
12004                          * Map SLI4 if type 0 HBA Doorbell Register base to
12005                          * a kernel virtual address and setup the registers.
12006                          */
12007                         phba->pci_bar2_map = pci_resource_start(pdev,
12008                                                                 PCI_64BIT_BAR4);
12009                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
12010                         phba->sli4_hba.drbl_regs_memmap_p =
12011                                         ioremap(phba->pci_bar2_map,
12012                                                 bar2map_len);
12013                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
12014                                 dev_err(&pdev->dev,
12015                                            "ioremap failed for SLI4 HBA"
12016                                            " doorbell registers.\n");
12017                                 error = -ENOMEM;
12018                                 goto out_iounmap_ctrl;
12019                         }
12020                         phba->pci_bar4_memmap_p =
12021                                         phba->sli4_hba.drbl_regs_memmap_p;
12022                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
12023                         if (error)
12024                                 goto out_iounmap_all;
12025                 } else {
12026                         error = -ENOMEM;
12027                         goto out_iounmap_all;
12028                 }
12029         }
12030
12031         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
12032             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
12033                 /*
12034                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
12035                  * virtual address and setup the registers.
12036                  */
12037                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
12038                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
12039                 phba->sli4_hba.dpp_regs_memmap_p =
12040                                 ioremap(phba->pci_bar2_map, bar2map_len);
12041                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
12042                         dev_err(&pdev->dev,
12043                            "ioremap failed for SLI4 HBA dpp registers.\n");
12044                         error = -ENOMEM;
12045                         goto out_iounmap_ctrl;
12046                 }
12047                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
12048         }
12049
12050         /* Set up the EQ/CQ register handeling functions now */
12051         switch (if_type) {
12052         case LPFC_SLI_INTF_IF_TYPE_0:
12053         case LPFC_SLI_INTF_IF_TYPE_2:
12054                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
12055                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
12056                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
12057                 break;
12058         case LPFC_SLI_INTF_IF_TYPE_6:
12059                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
12060                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
12061                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
12062                 break;
12063         default:
12064                 break;
12065         }
12066
12067         return 0;
12068
12069 out_iounmap_all:
12070         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
12071 out_iounmap_ctrl:
12072         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
12073 out_iounmap_conf:
12074         iounmap(phba->sli4_hba.conf_regs_memmap_p);
12075
12076         return error;
12077 }
12078
12079 /**
12080  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
12081  * @phba: pointer to lpfc hba data structure.
12082  *
12083  * This routine is invoked to unset the PCI device memory space for device
12084  * with SLI-4 interface spec.
12085  **/
12086 static void
12087 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
12088 {
12089         uint32_t if_type;
12090         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12091
12092         switch (if_type) {
12093         case LPFC_SLI_INTF_IF_TYPE_0:
12094                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
12095                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
12096                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
12097                 break;
12098         case LPFC_SLI_INTF_IF_TYPE_2:
12099                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
12100                 break;
12101         case LPFC_SLI_INTF_IF_TYPE_6:
12102                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
12103                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
12104                 if (phba->sli4_hba.dpp_regs_memmap_p)
12105                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
12106                 break;
12107         case LPFC_SLI_INTF_IF_TYPE_1:
12108         default:
12109                 dev_printk(KERN_ERR, &phba->pcidev->dev,
12110                            "FATAL - unsupported SLI4 interface type - %d\n",
12111                            if_type);
12112                 break;
12113         }
12114 }
12115
12116 /**
12117  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
12118  * @phba: pointer to lpfc hba data structure.
12119  *
12120  * This routine is invoked to enable the MSI-X interrupt vectors to device
12121  * with SLI-3 interface specs.
12122  *
12123  * Return codes
12124  *   0 - successful
12125  *   other values - error
12126  **/
12127 static int
12128 lpfc_sli_enable_msix(struct lpfc_hba *phba)
12129 {
12130         int rc;
12131         LPFC_MBOXQ_t *pmb;
12132
12133         /* Set up MSI-X multi-message vectors */
12134         rc = pci_alloc_irq_vectors(phba->pcidev,
12135                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
12136         if (rc < 0) {
12137                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12138                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
12139                 goto vec_fail_out;
12140         }
12141
12142         /*
12143          * Assign MSI-X vectors to interrupt handlers
12144          */
12145
12146         /* vector-0 is associated to slow-path handler */
12147         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
12148                          &lpfc_sli_sp_intr_handler, 0,
12149                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
12150         if (rc) {
12151                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12152                                 "0421 MSI-X slow-path request_irq failed "
12153                                 "(%d)\n", rc);
12154                 goto msi_fail_out;
12155         }
12156
12157         /* vector-1 is associated to fast-path handler */
12158         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
12159                          &lpfc_sli_fp_intr_handler, 0,
12160                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
12161
12162         if (rc) {
12163                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12164                                 "0429 MSI-X fast-path request_irq failed "
12165                                 "(%d)\n", rc);
12166                 goto irq_fail_out;
12167         }
12168
12169         /*
12170          * Configure HBA MSI-X attention conditions to messages
12171          */
12172         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12173
12174         if (!pmb) {
12175                 rc = -ENOMEM;
12176                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12177                                 "0474 Unable to allocate memory for issuing "
12178                                 "MBOX_CONFIG_MSI command\n");
12179                 goto mem_fail_out;
12180         }
12181         rc = lpfc_config_msi(phba, pmb);
12182         if (rc)
12183                 goto mbx_fail_out;
12184         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12185         if (rc != MBX_SUCCESS) {
12186                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12187                                 "0351 Config MSI mailbox command failed, "
12188                                 "mbxCmd x%x, mbxStatus x%x\n",
12189                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12190                 goto mbx_fail_out;
12191         }
12192
12193         /* Free memory allocated for mailbox command */
12194         mempool_free(pmb, phba->mbox_mem_pool);
12195         return rc;
12196
12197 mbx_fail_out:
12198         /* Free memory allocated for mailbox command */
12199         mempool_free(pmb, phba->mbox_mem_pool);
12200
12201 mem_fail_out:
12202         /* free the irq already requested */
12203         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
12204
12205 irq_fail_out:
12206         /* free the irq already requested */
12207         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
12208
12209 msi_fail_out:
12210         /* Unconfigure MSI-X capability structure */
12211         pci_free_irq_vectors(phba->pcidev);
12212
12213 vec_fail_out:
12214         return rc;
12215 }
12216
12217 /**
12218  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12219  * @phba: pointer to lpfc hba data structure.
12220  *
12221  * This routine is invoked to enable the MSI interrupt mode to device with
12222  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12223  * enable the MSI vector. The device driver is responsible for calling the
12224  * request_irq() to register MSI vector with a interrupt the handler, which
12225  * is done in this function.
12226  *
12227  * Return codes
12228  *      0 - successful
12229  *      other values - error
12230  */
12231 static int
12232 lpfc_sli_enable_msi(struct lpfc_hba *phba)
12233 {
12234         int rc;
12235
12236         rc = pci_enable_msi(phba->pcidev);
12237         if (!rc)
12238                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12239                                 "0012 PCI enable MSI mode success.\n");
12240         else {
12241                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12242                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
12243                 return rc;
12244         }
12245
12246         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12247                          0, LPFC_DRIVER_NAME, phba);
12248         if (rc) {
12249                 pci_disable_msi(phba->pcidev);
12250                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12251                                 "0478 MSI request_irq failed (%d)\n", rc);
12252         }
12253         return rc;
12254 }
12255
12256 /**
12257  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12258  * @phba: pointer to lpfc hba data structure.
12259  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12260  *
12261  * This routine is invoked to enable device interrupt and associate driver's
12262  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12263  * spec. Depends on the interrupt mode configured to the driver, the driver
12264  * will try to fallback from the configured interrupt mode to an interrupt
12265  * mode which is supported by the platform, kernel, and device in the order
12266  * of:
12267  * MSI-X -> MSI -> IRQ.
12268  *
12269  * Return codes
12270  *   0 - successful
12271  *   other values - error
12272  **/
12273 static uint32_t
12274 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12275 {
12276         uint32_t intr_mode = LPFC_INTR_ERROR;
12277         int retval;
12278
12279         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12280         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12281         if (retval)
12282                 return intr_mode;
12283         phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12284
12285         if (cfg_mode == 2) {
12286                 /* Now, try to enable MSI-X interrupt mode */
12287                 retval = lpfc_sli_enable_msix(phba);
12288                 if (!retval) {
12289                         /* Indicate initialization to MSI-X mode */
12290                         phba->intr_type = MSIX;
12291                         intr_mode = 2;
12292                 }
12293         }
12294
12295         /* Fallback to MSI if MSI-X initialization failed */
12296         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12297                 retval = lpfc_sli_enable_msi(phba);
12298                 if (!retval) {
12299                         /* Indicate initialization to MSI mode */
12300                         phba->intr_type = MSI;
12301                         intr_mode = 1;
12302                 }
12303         }
12304
12305         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12306         if (phba->intr_type == NONE) {
12307                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12308                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12309                 if (!retval) {
12310                         /* Indicate initialization to INTx mode */
12311                         phba->intr_type = INTx;
12312                         intr_mode = 0;
12313                 }
12314         }
12315         return intr_mode;
12316 }
12317
12318 /**
12319  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12320  * @phba: pointer to lpfc hba data structure.
12321  *
12322  * This routine is invoked to disable device interrupt and disassociate the
12323  * driver's interrupt handler(s) from interrupt vector(s) to device with
12324  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12325  * release the interrupt vector(s) for the message signaled interrupt.
12326  **/
12327 static void
12328 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12329 {
12330         int nr_irqs, i;
12331
12332         if (phba->intr_type == MSIX)
12333                 nr_irqs = LPFC_MSIX_VECTORS;
12334         else
12335                 nr_irqs = 1;
12336
12337         for (i = 0; i < nr_irqs; i++)
12338                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12339         pci_free_irq_vectors(phba->pcidev);
12340
12341         /* Reset interrupt management states */
12342         phba->intr_type = NONE;
12343         phba->sli.slistat.sli_intr = 0;
12344 }
12345
12346 /**
12347  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12348  * @phba: pointer to lpfc hba data structure.
12349  * @id: EQ vector index or Hardware Queue index
12350  * @match: LPFC_FIND_BY_EQ = match by EQ
12351  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
12352  * Return the CPU that matches the selection criteria
12353  */
12354 static uint16_t
12355 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12356 {
12357         struct lpfc_vector_map_info *cpup;
12358         int cpu;
12359
12360         /* Loop through all CPUs */
12361         for_each_present_cpu(cpu) {
12362                 cpup = &phba->sli4_hba.cpu_map[cpu];
12363
12364                 /* If we are matching by EQ, there may be multiple CPUs using
12365                  * using the same vector, so select the one with
12366                  * LPFC_CPU_FIRST_IRQ set.
12367                  */
12368                 if ((match == LPFC_FIND_BY_EQ) &&
12369                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12370                     (cpup->eq == id))
12371                         return cpu;
12372
12373                 /* If matching by HDWQ, select the first CPU that matches */
12374                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12375                         return cpu;
12376         }
12377         return 0;
12378 }
12379
12380 #ifdef CONFIG_X86
12381 /**
12382  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12383  * @phba: pointer to lpfc hba data structure.
12384  * @cpu: CPU map index
12385  * @phys_id: CPU package physical id
12386  * @core_id: CPU core id
12387  */
12388 static int
12389 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12390                 uint16_t phys_id, uint16_t core_id)
12391 {
12392         struct lpfc_vector_map_info *cpup;
12393         int idx;
12394
12395         for_each_present_cpu(idx) {
12396                 cpup = &phba->sli4_hba.cpu_map[idx];
12397                 /* Does the cpup match the one we are looking for */
12398                 if ((cpup->phys_id == phys_id) &&
12399                     (cpup->core_id == core_id) &&
12400                     (cpu != idx))
12401                         return 1;
12402         }
12403         return 0;
12404 }
12405 #endif
12406
12407 /*
12408  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12409  * @phba: pointer to lpfc hba data structure.
12410  * @eqidx: index for eq and irq vector
12411  * @flag: flags to set for vector_map structure
12412  * @cpu: cpu used to index vector_map structure
12413  *
12414  * The routine assigns eq info into vector_map structure
12415  */
12416 static inline void
12417 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12418                         unsigned int cpu)
12419 {
12420         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12421         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12422
12423         cpup->eq = eqidx;
12424         cpup->flag |= flag;
12425
12426         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12427                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12428                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
12429 }
12430
12431 /**
12432  * lpfc_cpu_map_array_init - Initialize cpu_map structure
12433  * @phba: pointer to lpfc hba data structure.
12434  *
12435  * The routine initializes the cpu_map array structure
12436  */
12437 static void
12438 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12439 {
12440         struct lpfc_vector_map_info *cpup;
12441         struct lpfc_eq_intr_info *eqi;
12442         int cpu;
12443
12444         for_each_possible_cpu(cpu) {
12445                 cpup = &phba->sli4_hba.cpu_map[cpu];
12446                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12447                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12448                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12449                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12450                 cpup->flag = 0;
12451                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12452                 INIT_LIST_HEAD(&eqi->list);
12453                 eqi->icnt = 0;
12454         }
12455 }
12456
12457 /**
12458  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12459  * @phba: pointer to lpfc hba data structure.
12460  *
12461  * The routine initializes the hba_eq_hdl array structure
12462  */
12463 static void
12464 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12465 {
12466         struct lpfc_hba_eq_hdl *eqhdl;
12467         int i;
12468
12469         for (i = 0; i < phba->cfg_irq_chann; i++) {
12470                 eqhdl = lpfc_get_eq_hdl(i);
12471                 eqhdl->irq = LPFC_IRQ_EMPTY;
12472                 eqhdl->phba = phba;
12473         }
12474 }
12475
12476 /**
12477  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12478  * @phba: pointer to lpfc hba data structure.
12479  * @vectors: number of msix vectors allocated.
12480  *
12481  * The routine will figure out the CPU affinity assignment for every
12482  * MSI-X vector allocated for the HBA.
12483  * In addition, the CPU to IO channel mapping will be calculated
12484  * and the phba->sli4_hba.cpu_map array will reflect this.
12485  */
12486 static void
12487 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12488 {
12489         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12490         int max_phys_id, min_phys_id;
12491         int max_core_id, min_core_id;
12492         struct lpfc_vector_map_info *cpup;
12493         struct lpfc_vector_map_info *new_cpup;
12494 #ifdef CONFIG_X86
12495         struct cpuinfo_x86 *cpuinfo;
12496 #endif
12497 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12498         struct lpfc_hdwq_stat *c_stat;
12499 #endif
12500
12501         max_phys_id = 0;
12502         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12503         max_core_id = 0;
12504         min_core_id = LPFC_VECTOR_MAP_EMPTY;
12505
12506         /* Update CPU map with physical id and core id of each CPU */
12507         for_each_present_cpu(cpu) {
12508                 cpup = &phba->sli4_hba.cpu_map[cpu];
12509 #ifdef CONFIG_X86
12510                 cpuinfo = &cpu_data(cpu);
12511                 cpup->phys_id = cpuinfo->phys_proc_id;
12512                 cpup->core_id = cpuinfo->cpu_core_id;
12513                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12514                         cpup->flag |= LPFC_CPU_MAP_HYPER;
12515 #else
12516                 /* No distinction between CPUs for other platforms */
12517                 cpup->phys_id = 0;
12518                 cpup->core_id = cpu;
12519 #endif
12520
12521                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12522                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
12523                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12524
12525                 if (cpup->phys_id > max_phys_id)
12526                         max_phys_id = cpup->phys_id;
12527                 if (cpup->phys_id < min_phys_id)
12528                         min_phys_id = cpup->phys_id;
12529
12530                 if (cpup->core_id > max_core_id)
12531                         max_core_id = cpup->core_id;
12532                 if (cpup->core_id < min_core_id)
12533                         min_core_id = cpup->core_id;
12534         }
12535
12536         /* After looking at each irq vector assigned to this pcidev, its
12537          * possible to see that not ALL CPUs have been accounted for.
12538          * Next we will set any unassigned (unaffinitized) cpu map
12539          * entries to a IRQ on the same phys_id.
12540          */
12541         first_cpu = cpumask_first(cpu_present_mask);
12542         start_cpu = first_cpu;
12543
12544         for_each_present_cpu(cpu) {
12545                 cpup = &phba->sli4_hba.cpu_map[cpu];
12546
12547                 /* Is this CPU entry unassigned */
12548                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12549                         /* Mark CPU as IRQ not assigned by the kernel */
12550                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12551
12552                         /* If so, find a new_cpup thats on the the SAME
12553                          * phys_id as cpup. start_cpu will start where we
12554                          * left off so all unassigned entries don't get assgined
12555                          * the IRQ of the first entry.
12556                          */
12557                         new_cpu = start_cpu;
12558                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12559                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12560                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12561                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12562                                     (new_cpup->phys_id == cpup->phys_id))
12563                                         goto found_same;
12564                                 new_cpu = cpumask_next(
12565                                         new_cpu, cpu_present_mask);
12566                                 if (new_cpu == nr_cpumask_bits)
12567                                         new_cpu = first_cpu;
12568                         }
12569                         /* At this point, we leave the CPU as unassigned */
12570                         continue;
12571 found_same:
12572                         /* We found a matching phys_id, so copy the IRQ info */
12573                         cpup->eq = new_cpup->eq;
12574
12575                         /* Bump start_cpu to the next slot to minmize the
12576                          * chance of having multiple unassigned CPU entries
12577                          * selecting the same IRQ.
12578                          */
12579                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12580                         if (start_cpu == nr_cpumask_bits)
12581                                 start_cpu = first_cpu;
12582
12583                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12584                                         "3337 Set Affinity: CPU %d "
12585                                         "eq %d from peer cpu %d same "
12586                                         "phys_id (%d)\n",
12587                                         cpu, cpup->eq, new_cpu,
12588                                         cpup->phys_id);
12589                 }
12590         }
12591
12592         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12593         start_cpu = first_cpu;
12594
12595         for_each_present_cpu(cpu) {
12596                 cpup = &phba->sli4_hba.cpu_map[cpu];
12597
12598                 /* Is this entry unassigned */
12599                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12600                         /* Mark it as IRQ not assigned by the kernel */
12601                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12602
12603                         /* If so, find a new_cpup thats on ANY phys_id
12604                          * as the cpup. start_cpu will start where we
12605                          * left off so all unassigned entries don't get
12606                          * assigned the IRQ of the first entry.
12607                          */
12608                         new_cpu = start_cpu;
12609                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12610                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12611                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12612                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12613                                         goto found_any;
12614                                 new_cpu = cpumask_next(
12615                                         new_cpu, cpu_present_mask);
12616                                 if (new_cpu == nr_cpumask_bits)
12617                                         new_cpu = first_cpu;
12618                         }
12619                         /* We should never leave an entry unassigned */
12620                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12621                                         "3339 Set Affinity: CPU %d "
12622                                         "eq %d UNASSIGNED\n",
12623                                         cpup->hdwq, cpup->eq);
12624                         continue;
12625 found_any:
12626                         /* We found an available entry, copy the IRQ info */
12627                         cpup->eq = new_cpup->eq;
12628
12629                         /* Bump start_cpu to the next slot to minmize the
12630                          * chance of having multiple unassigned CPU entries
12631                          * selecting the same IRQ.
12632                          */
12633                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12634                         if (start_cpu == nr_cpumask_bits)
12635                                 start_cpu = first_cpu;
12636
12637                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12638                                         "3338 Set Affinity: CPU %d "
12639                                         "eq %d from peer cpu %d (%d/%d)\n",
12640                                         cpu, cpup->eq, new_cpu,
12641                                         new_cpup->phys_id, new_cpup->core_id);
12642                 }
12643         }
12644
12645         /* Assign hdwq indices that are unique across all cpus in the map
12646          * that are also FIRST_CPUs.
12647          */
12648         idx = 0;
12649         for_each_present_cpu(cpu) {
12650                 cpup = &phba->sli4_hba.cpu_map[cpu];
12651
12652                 /* Only FIRST IRQs get a hdwq index assignment. */
12653                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12654                         continue;
12655
12656                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12657                 cpup->hdwq = idx;
12658                 idx++;
12659                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12660                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
12661                                 "hdwq %d eq %d flg x%x\n",
12662                                 cpu, cpup->phys_id, cpup->core_id,
12663                                 cpup->hdwq, cpup->eq, cpup->flag);
12664         }
12665         /* Associate a hdwq with each cpu_map entry
12666          * This will be 1 to 1 - hdwq to cpu, unless there are less
12667          * hardware queues then CPUs. For that case we will just round-robin
12668          * the available hardware queues as they get assigned to CPUs.
12669          * The next_idx is the idx from the FIRST_CPU loop above to account
12670          * for irq_chann < hdwq.  The idx is used for round-robin assignments
12671          * and needs to start at 0.
12672          */
12673         next_idx = idx;
12674         start_cpu = 0;
12675         idx = 0;
12676         for_each_present_cpu(cpu) {
12677                 cpup = &phba->sli4_hba.cpu_map[cpu];
12678
12679                 /* FIRST cpus are already mapped. */
12680                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12681                         continue;
12682
12683                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12684                  * of the unassigned cpus to the next idx so that all
12685                  * hdw queues are fully utilized.
12686                  */
12687                 if (next_idx < phba->cfg_hdw_queue) {
12688                         cpup->hdwq = next_idx;
12689                         next_idx++;
12690                         continue;
12691                 }
12692
12693                 /* Not a First CPU and all hdw_queues are used.  Reuse a
12694                  * Hardware Queue for another CPU, so be smart about it
12695                  * and pick one that has its IRQ/EQ mapped to the same phys_id
12696                  * (CPU package) and core_id.
12697                  */
12698                 new_cpu = start_cpu;
12699                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12700                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12701                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12702                             new_cpup->phys_id == cpup->phys_id &&
12703                             new_cpup->core_id == cpup->core_id) {
12704                                 goto found_hdwq;
12705                         }
12706                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12707                         if (new_cpu == nr_cpumask_bits)
12708                                 new_cpu = first_cpu;
12709                 }
12710
12711                 /* If we can't match both phys_id and core_id,
12712                  * settle for just a phys_id match.
12713                  */
12714                 new_cpu = start_cpu;
12715                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12716                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12717                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12718                             new_cpup->phys_id == cpup->phys_id)
12719                                 goto found_hdwq;
12720
12721                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12722                         if (new_cpu == nr_cpumask_bits)
12723                                 new_cpu = first_cpu;
12724                 }
12725
12726                 /* Otherwise just round robin on cfg_hdw_queue */
12727                 cpup->hdwq = idx % phba->cfg_hdw_queue;
12728                 idx++;
12729                 goto logit;
12730  found_hdwq:
12731                 /* We found an available entry, copy the IRQ info */
12732                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12733                 if (start_cpu == nr_cpumask_bits)
12734                         start_cpu = first_cpu;
12735                 cpup->hdwq = new_cpup->hdwq;
12736  logit:
12737                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12738                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
12739                                 "hdwq %d eq %d flg x%x\n",
12740                                 cpu, cpup->phys_id, cpup->core_id,
12741                                 cpup->hdwq, cpup->eq, cpup->flag);
12742         }
12743
12744         /*
12745          * Initialize the cpu_map slots for not-present cpus in case
12746          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12747          */
12748         idx = 0;
12749         for_each_possible_cpu(cpu) {
12750                 cpup = &phba->sli4_hba.cpu_map[cpu];
12751 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12752                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12753                 c_stat->hdwq_no = cpup->hdwq;
12754 #endif
12755                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12756                         continue;
12757
12758                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12759 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12760                 c_stat->hdwq_no = cpup->hdwq;
12761 #endif
12762                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12763                                 "3340 Set Affinity: not present "
12764                                 "CPU %d hdwq %d\n",
12765                                 cpu, cpup->hdwq);
12766         }
12767
12768         /* The cpu_map array will be used later during initialization
12769          * when EQ / CQ / WQs are allocated and configured.
12770          */
12771         return;
12772 }
12773
12774 /**
12775  * lpfc_cpuhp_get_eq
12776  *
12777  * @phba:   pointer to lpfc hba data structure.
12778  * @cpu:    cpu going offline
12779  * @eqlist: eq list to append to
12780  */
12781 static int
12782 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12783                   struct list_head *eqlist)
12784 {
12785         const struct cpumask *maskp;
12786         struct lpfc_queue *eq;
12787         struct cpumask *tmp;
12788         u16 idx;
12789
12790         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12791         if (!tmp)
12792                 return -ENOMEM;
12793
12794         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12795                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12796                 if (!maskp)
12797                         continue;
12798                 /*
12799                  * if irq is not affinitized to the cpu going
12800                  * then we don't need to poll the eq attached
12801                  * to it.
12802                  */
12803                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12804                         continue;
12805                 /* get the cpus that are online and are affini-
12806                  * tized to this irq vector.  If the count is
12807                  * more than 1 then cpuhp is not going to shut-
12808                  * down this vector.  Since this cpu has not
12809                  * gone offline yet, we need >1.
12810                  */
12811                 cpumask_and(tmp, maskp, cpu_online_mask);
12812                 if (cpumask_weight(tmp) > 1)
12813                         continue;
12814
12815                 /* Now that we have an irq to shutdown, get the eq
12816                  * mapped to this irq.  Note: multiple hdwq's in
12817                  * the software can share an eq, but eventually
12818                  * only eq will be mapped to this vector
12819                  */
12820                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12821                 list_add(&eq->_poll_list, eqlist);
12822         }
12823         kfree(tmp);
12824         return 0;
12825 }
12826
12827 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12828 {
12829         if (phba->sli_rev != LPFC_SLI_REV4)
12830                 return;
12831
12832         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12833                                             &phba->cpuhp);
12834         /*
12835          * unregistering the instance doesn't stop the polling
12836          * timer. Wait for the poll timer to retire.
12837          */
12838         synchronize_rcu();
12839         del_timer_sync(&phba->cpuhp_poll_timer);
12840 }
12841
12842 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12843 {
12844         if (phba->pport && (phba->pport->fc_flag & FC_OFFLINE_MODE))
12845                 return;
12846
12847         __lpfc_cpuhp_remove(phba);
12848 }
12849
12850 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12851 {
12852         if (phba->sli_rev != LPFC_SLI_REV4)
12853                 return;
12854
12855         rcu_read_lock();
12856
12857         if (!list_empty(&phba->poll_list))
12858                 mod_timer(&phba->cpuhp_poll_timer,
12859                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12860
12861         rcu_read_unlock();
12862
12863         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12864                                          &phba->cpuhp);
12865 }
12866
12867 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12868 {
12869         if (phba->pport->load_flag & FC_UNLOADING) {
12870                 *retval = -EAGAIN;
12871                 return true;
12872         }
12873
12874         if (phba->sli_rev != LPFC_SLI_REV4) {
12875                 *retval = 0;
12876                 return true;
12877         }
12878
12879         /* proceed with the hotplug */
12880         return false;
12881 }
12882
12883 /**
12884  * lpfc_irq_set_aff - set IRQ affinity
12885  * @eqhdl: EQ handle
12886  * @cpu: cpu to set affinity
12887  *
12888  **/
12889 static inline void
12890 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12891 {
12892         cpumask_clear(&eqhdl->aff_mask);
12893         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12894         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12895         irq_set_affinity(eqhdl->irq, &eqhdl->aff_mask);
12896 }
12897
12898 /**
12899  * lpfc_irq_clear_aff - clear IRQ affinity
12900  * @eqhdl: EQ handle
12901  *
12902  **/
12903 static inline void
12904 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12905 {
12906         cpumask_clear(&eqhdl->aff_mask);
12907         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12908 }
12909
12910 /**
12911  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12912  * @phba: pointer to HBA context object.
12913  * @cpu: cpu going offline/online
12914  * @offline: true, cpu is going offline. false, cpu is coming online.
12915  *
12916  * If cpu is going offline, we'll try our best effort to find the next
12917  * online cpu on the phba's original_mask and migrate all offlining IRQ
12918  * affinities.
12919  *
12920  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12921  *
12922  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12923  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12924  *
12925  **/
12926 static void
12927 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12928 {
12929         struct lpfc_vector_map_info *cpup;
12930         struct cpumask *aff_mask;
12931         unsigned int cpu_select, cpu_next, idx;
12932         const struct cpumask *orig_mask;
12933
12934         if (phba->irq_chann_mode == NORMAL_MODE)
12935                 return;
12936
12937         orig_mask = &phba->sli4_hba.irq_aff_mask;
12938
12939         if (!cpumask_test_cpu(cpu, orig_mask))
12940                 return;
12941
12942         cpup = &phba->sli4_hba.cpu_map[cpu];
12943
12944         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12945                 return;
12946
12947         if (offline) {
12948                 /* Find next online CPU on original mask */
12949                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12950                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12951
12952                 /* Found a valid CPU */
12953                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12954                         /* Go through each eqhdl and ensure offlining
12955                          * cpu aff_mask is migrated
12956                          */
12957                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12958                                 aff_mask = lpfc_get_aff_mask(idx);
12959
12960                                 /* Migrate affinity */
12961                                 if (cpumask_test_cpu(cpu, aff_mask))
12962                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12963                                                          cpu_select);
12964                         }
12965                 } else {
12966                         /* Rely on irqbalance if no online CPUs left on NUMA */
12967                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12968                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12969                 }
12970         } else {
12971                 /* Migrate affinity back to this CPU */
12972                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12973         }
12974 }
12975
12976 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12977 {
12978         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12979         struct lpfc_queue *eq, *next;
12980         LIST_HEAD(eqlist);
12981         int retval;
12982
12983         if (!phba) {
12984                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12985                 return 0;
12986         }
12987
12988         if (__lpfc_cpuhp_checks(phba, &retval))
12989                 return retval;
12990
12991         lpfc_irq_rebalance(phba, cpu, true);
12992
12993         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12994         if (retval)
12995                 return retval;
12996
12997         /* start polling on these eq's */
12998         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12999                 list_del_init(&eq->_poll_list);
13000                 lpfc_sli4_start_polling(eq);
13001         }
13002
13003         return 0;
13004 }
13005
13006 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
13007 {
13008         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
13009         struct lpfc_queue *eq, *next;
13010         unsigned int n;
13011         int retval;
13012
13013         if (!phba) {
13014                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
13015                 return 0;
13016         }
13017
13018         if (__lpfc_cpuhp_checks(phba, &retval))
13019                 return retval;
13020
13021         lpfc_irq_rebalance(phba, cpu, false);
13022
13023         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
13024                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
13025                 if (n == cpu)
13026                         lpfc_sli4_stop_polling(eq);
13027         }
13028
13029         return 0;
13030 }
13031
13032 /**
13033  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
13034  * @phba: pointer to lpfc hba data structure.
13035  *
13036  * This routine is invoked to enable the MSI-X interrupt vectors to device
13037  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
13038  * to cpus on the system.
13039  *
13040  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
13041  * the number of cpus on the same numa node as this adapter.  The vectors are
13042  * allocated without requesting OS affinity mapping.  A vector will be
13043  * allocated and assigned to each online and offline cpu.  If the cpu is
13044  * online, then affinity will be set to that cpu.  If the cpu is offline, then
13045  * affinity will be set to the nearest peer cpu within the numa node that is
13046  * online.  If there are no online cpus within the numa node, affinity is not
13047  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
13048  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
13049  * configured.
13050  *
13051  * If numa mode is not enabled and there is more than 1 vector allocated, then
13052  * the driver relies on the managed irq interface where the OS assigns vector to
13053  * cpu affinity.  The driver will then use that affinity mapping to setup its
13054  * cpu mapping table.
13055  *
13056  * Return codes
13057  * 0 - successful
13058  * other values - error
13059  **/
13060 static int
13061 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
13062 {
13063         int vectors, rc, index;
13064         char *name;
13065         const struct cpumask *aff_mask = NULL;
13066         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
13067         struct lpfc_vector_map_info *cpup;
13068         struct lpfc_hba_eq_hdl *eqhdl;
13069         const struct cpumask *maskp;
13070         unsigned int flags = PCI_IRQ_MSIX;
13071
13072         /* Set up MSI-X multi-message vectors */
13073         vectors = phba->cfg_irq_chann;
13074
13075         if (phba->irq_chann_mode != NORMAL_MODE)
13076                 aff_mask = &phba->sli4_hba.irq_aff_mask;
13077
13078         if (aff_mask) {
13079                 cpu_cnt = cpumask_weight(aff_mask);
13080                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
13081
13082                 /* cpu: iterates over aff_mask including offline or online
13083                  * cpu_select: iterates over online aff_mask to set affinity
13084                  */
13085                 cpu = cpumask_first(aff_mask);
13086                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
13087         } else {
13088                 flags |= PCI_IRQ_AFFINITY;
13089         }
13090
13091         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
13092         if (rc < 0) {
13093                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13094                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
13095                 goto vec_fail_out;
13096         }
13097         vectors = rc;
13098
13099         /* Assign MSI-X vectors to interrupt handlers */
13100         for (index = 0; index < vectors; index++) {
13101                 eqhdl = lpfc_get_eq_hdl(index);
13102                 name = eqhdl->handler_name;
13103                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
13104                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
13105                          LPFC_DRIVER_HANDLER_NAME"%d", index);
13106
13107                 eqhdl->idx = index;
13108                 rc = pci_irq_vector(phba->pcidev, index);
13109                 if (rc < 0) {
13110                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13111                                         "0489 MSI-X fast-path (%d) "
13112                                         "pci_irq_vec failed (%d)\n", index, rc);
13113                         goto cfg_fail_out;
13114                 }
13115                 eqhdl->irq = rc;
13116
13117                 rc = request_irq(eqhdl->irq, &lpfc_sli4_hba_intr_handler, 0,
13118                                  name, eqhdl);
13119                 if (rc) {
13120                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13121                                         "0486 MSI-X fast-path (%d) "
13122                                         "request_irq failed (%d)\n", index, rc);
13123                         goto cfg_fail_out;
13124                 }
13125
13126                 if (aff_mask) {
13127                         /* If found a neighboring online cpu, set affinity */
13128                         if (cpu_select < nr_cpu_ids)
13129                                 lpfc_irq_set_aff(eqhdl, cpu_select);
13130
13131                         /* Assign EQ to cpu_map */
13132                         lpfc_assign_eq_map_info(phba, index,
13133                                                 LPFC_CPU_FIRST_IRQ,
13134                                                 cpu);
13135
13136                         /* Iterate to next offline or online cpu in aff_mask */
13137                         cpu = cpumask_next(cpu, aff_mask);
13138
13139                         /* Find next online cpu in aff_mask to set affinity */
13140                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
13141                 } else if (vectors == 1) {
13142                         cpu = cpumask_first(cpu_present_mask);
13143                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
13144                                                 cpu);
13145                 } else {
13146                         maskp = pci_irq_get_affinity(phba->pcidev, index);
13147
13148                         /* Loop through all CPUs associated with vector index */
13149                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
13150                                 cpup = &phba->sli4_hba.cpu_map[cpu];
13151
13152                                 /* If this is the first CPU thats assigned to
13153                                  * this vector, set LPFC_CPU_FIRST_IRQ.
13154                                  *
13155                                  * With certain platforms its possible that irq
13156                                  * vectors are affinitized to all the cpu's.
13157                                  * This can result in each cpu_map.eq to be set
13158                                  * to the last vector, resulting in overwrite
13159                                  * of all the previous cpu_map.eq.  Ensure that
13160                                  * each vector receives a place in cpu_map.
13161                                  * Later call to lpfc_cpu_affinity_check will
13162                                  * ensure we are nicely balanced out.
13163                                  */
13164                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
13165                                         continue;
13166                                 lpfc_assign_eq_map_info(phba, index,
13167                                                         LPFC_CPU_FIRST_IRQ,
13168                                                         cpu);
13169                                 break;
13170                         }
13171                 }
13172         }
13173
13174         if (vectors != phba->cfg_irq_chann) {
13175                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13176                                 "3238 Reducing IO channels to match number of "
13177                                 "MSI-X vectors, requested %d got %d\n",
13178                                 phba->cfg_irq_chann, vectors);
13179                 if (phba->cfg_irq_chann > vectors)
13180                         phba->cfg_irq_chann = vectors;
13181         }
13182
13183         return rc;
13184
13185 cfg_fail_out:
13186         /* free the irq already requested */
13187         for (--index; index >= 0; index--) {
13188                 eqhdl = lpfc_get_eq_hdl(index);
13189                 lpfc_irq_clear_aff(eqhdl);
13190                 free_irq(eqhdl->irq, eqhdl);
13191         }
13192
13193         /* Unconfigure MSI-X capability structure */
13194         pci_free_irq_vectors(phba->pcidev);
13195
13196 vec_fail_out:
13197         return rc;
13198 }
13199
13200 /**
13201  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13202  * @phba: pointer to lpfc hba data structure.
13203  *
13204  * This routine is invoked to enable the MSI interrupt mode to device with
13205  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13206  * called to enable the MSI vector. The device driver is responsible for
13207  * calling the request_irq() to register MSI vector with a interrupt the
13208  * handler, which is done in this function.
13209  *
13210  * Return codes
13211  *      0 - successful
13212  *      other values - error
13213  **/
13214 static int
13215 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13216 {
13217         int rc, index;
13218         unsigned int cpu;
13219         struct lpfc_hba_eq_hdl *eqhdl;
13220
13221         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
13222                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13223         if (rc > 0)
13224                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13225                                 "0487 PCI enable MSI mode success.\n");
13226         else {
13227                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13228                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
13229                 return rc ? rc : -1;
13230         }
13231
13232         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13233                          0, LPFC_DRIVER_NAME, phba);
13234         if (rc) {
13235                 pci_free_irq_vectors(phba->pcidev);
13236                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13237                                 "0490 MSI request_irq failed (%d)\n", rc);
13238                 return rc;
13239         }
13240
13241         eqhdl = lpfc_get_eq_hdl(0);
13242         rc = pci_irq_vector(phba->pcidev, 0);
13243         if (rc < 0) {
13244                 pci_free_irq_vectors(phba->pcidev);
13245                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13246                                 "0496 MSI pci_irq_vec failed (%d)\n", rc);
13247                 return rc;
13248         }
13249         eqhdl->irq = rc;
13250
13251         cpu = cpumask_first(cpu_present_mask);
13252         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
13253
13254         for (index = 0; index < phba->cfg_irq_chann; index++) {
13255                 eqhdl = lpfc_get_eq_hdl(index);
13256                 eqhdl->idx = index;
13257         }
13258
13259         return 0;
13260 }
13261
13262 /**
13263  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13264  * @phba: pointer to lpfc hba data structure.
13265  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13266  *
13267  * This routine is invoked to enable device interrupt and associate driver's
13268  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
13269  * interface spec. Depends on the interrupt mode configured to the driver,
13270  * the driver will try to fallback from the configured interrupt mode to an
13271  * interrupt mode which is supported by the platform, kernel, and device in
13272  * the order of:
13273  * MSI-X -> MSI -> IRQ.
13274  *
13275  * Return codes
13276  *      Interrupt mode (2, 1, 0) - successful
13277  *      LPFC_INTR_ERROR - error
13278  **/
13279 static uint32_t
13280 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13281 {
13282         uint32_t intr_mode = LPFC_INTR_ERROR;
13283         int retval, idx;
13284
13285         if (cfg_mode == 2) {
13286                 /* Preparation before conf_msi mbox cmd */
13287                 retval = 0;
13288                 if (!retval) {
13289                         /* Now, try to enable MSI-X interrupt mode */
13290                         retval = lpfc_sli4_enable_msix(phba);
13291                         if (!retval) {
13292                                 /* Indicate initialization to MSI-X mode */
13293                                 phba->intr_type = MSIX;
13294                                 intr_mode = 2;
13295                         }
13296                 }
13297         }
13298
13299         /* Fallback to MSI if MSI-X initialization failed */
13300         if (cfg_mode >= 1 && phba->intr_type == NONE) {
13301                 retval = lpfc_sli4_enable_msi(phba);
13302                 if (!retval) {
13303                         /* Indicate initialization to MSI mode */
13304                         phba->intr_type = MSI;
13305                         intr_mode = 1;
13306                 }
13307         }
13308
13309         /* Fallback to INTx if both MSI-X/MSI initalization failed */
13310         if (phba->intr_type == NONE) {
13311                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13312                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13313                 if (!retval) {
13314                         struct lpfc_hba_eq_hdl *eqhdl;
13315                         unsigned int cpu;
13316
13317                         /* Indicate initialization to INTx mode */
13318                         phba->intr_type = INTx;
13319                         intr_mode = 0;
13320
13321                         eqhdl = lpfc_get_eq_hdl(0);
13322                         retval = pci_irq_vector(phba->pcidev, 0);
13323                         if (retval < 0) {
13324                                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13325                                         "0502 INTR pci_irq_vec failed (%d)\n",
13326                                          retval);
13327                                 return LPFC_INTR_ERROR;
13328                         }
13329                         eqhdl->irq = retval;
13330
13331                         cpu = cpumask_first(cpu_present_mask);
13332                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13333                                                 cpu);
13334                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13335                                 eqhdl = lpfc_get_eq_hdl(idx);
13336                                 eqhdl->idx = idx;
13337                         }
13338                 }
13339         }
13340         return intr_mode;
13341 }
13342
13343 /**
13344  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13345  * @phba: pointer to lpfc hba data structure.
13346  *
13347  * This routine is invoked to disable device interrupt and disassociate
13348  * the driver's interrupt handler(s) from interrupt vector(s) to device
13349  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13350  * will release the interrupt vector(s) for the message signaled interrupt.
13351  **/
13352 static void
13353 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13354 {
13355         /* Disable the currently initialized interrupt mode */
13356         if (phba->intr_type == MSIX) {
13357                 int index;
13358                 struct lpfc_hba_eq_hdl *eqhdl;
13359
13360                 /* Free up MSI-X multi-message vectors */
13361                 for (index = 0; index < phba->cfg_irq_chann; index++) {
13362                         eqhdl = lpfc_get_eq_hdl(index);
13363                         lpfc_irq_clear_aff(eqhdl);
13364                         free_irq(eqhdl->irq, eqhdl);
13365                 }
13366         } else {
13367                 free_irq(phba->pcidev->irq, phba);
13368         }
13369
13370         pci_free_irq_vectors(phba->pcidev);
13371
13372         /* Reset interrupt management states */
13373         phba->intr_type = NONE;
13374         phba->sli.slistat.sli_intr = 0;
13375 }
13376
13377 /**
13378  * lpfc_unset_hba - Unset SLI3 hba device initialization
13379  * @phba: pointer to lpfc hba data structure.
13380  *
13381  * This routine is invoked to unset the HBA device initialization steps to
13382  * a device with SLI-3 interface spec.
13383  **/
13384 static void
13385 lpfc_unset_hba(struct lpfc_hba *phba)
13386 {
13387         struct lpfc_vport *vport = phba->pport;
13388         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
13389
13390         spin_lock_irq(shost->host_lock);
13391         vport->load_flag |= FC_UNLOADING;
13392         spin_unlock_irq(shost->host_lock);
13393
13394         kfree(phba->vpi_bmask);
13395         kfree(phba->vpi_ids);
13396
13397         lpfc_stop_hba_timers(phba);
13398
13399         phba->pport->work_port_events = 0;
13400
13401         lpfc_sli_hba_down(phba);
13402
13403         lpfc_sli_brdrestart(phba);
13404
13405         lpfc_sli_disable_intr(phba);
13406
13407         return;
13408 }
13409
13410 /**
13411  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13412  * @phba: Pointer to HBA context object.
13413  *
13414  * This function is called in the SLI4 code path to wait for completion
13415  * of device's XRIs exchange busy. It will check the XRI exchange busy
13416  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13417  * that, it will check the XRI exchange busy on outstanding FCP and ELS
13418  * I/Os every 30 seconds, log error message, and wait forever. Only when
13419  * all XRI exchange busy complete, the driver unload shall proceed with
13420  * invoking the function reset ioctl mailbox command to the CNA and the
13421  * the rest of the driver unload resource release.
13422  **/
13423 static void
13424 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13425 {
13426         struct lpfc_sli4_hdw_queue *qp;
13427         int idx, ccnt;
13428         int wait_time = 0;
13429         int io_xri_cmpl = 1;
13430         int nvmet_xri_cmpl = 1;
13431         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13432
13433         /* Driver just aborted IOs during the hba_unset process.  Pause
13434          * here to give the HBA time to complete the IO and get entries
13435          * into the abts lists.
13436          */
13437         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13438
13439         /* Wait for NVME pending IO to flush back to transport. */
13440         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13441                 lpfc_nvme_wait_for_io_drain(phba);
13442
13443         ccnt = 0;
13444         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13445                 qp = &phba->sli4_hba.hdwq[idx];
13446                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13447                 if (!io_xri_cmpl) /* if list is NOT empty */
13448                         ccnt++;
13449         }
13450         if (ccnt)
13451                 io_xri_cmpl = 0;
13452
13453         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13454                 nvmet_xri_cmpl =
13455                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13456         }
13457
13458         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13459                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13460                         if (!nvmet_xri_cmpl)
13461                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13462                                                 "6424 NVMET XRI exchange busy "
13463                                                 "wait time: %d seconds.\n",
13464                                                 wait_time/1000);
13465                         if (!io_xri_cmpl)
13466                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13467                                                 "6100 IO XRI exchange busy "
13468                                                 "wait time: %d seconds.\n",
13469                                                 wait_time/1000);
13470                         if (!els_xri_cmpl)
13471                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13472                                                 "2878 ELS XRI exchange busy "
13473                                                 "wait time: %d seconds.\n",
13474                                                 wait_time/1000);
13475                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13476                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13477                 } else {
13478                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13479                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13480                 }
13481
13482                 ccnt = 0;
13483                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13484                         qp = &phba->sli4_hba.hdwq[idx];
13485                         io_xri_cmpl = list_empty(
13486                             &qp->lpfc_abts_io_buf_list);
13487                         if (!io_xri_cmpl) /* if list is NOT empty */
13488                                 ccnt++;
13489                 }
13490                 if (ccnt)
13491                         io_xri_cmpl = 0;
13492
13493                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13494                         nvmet_xri_cmpl = list_empty(
13495                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13496                 }
13497                 els_xri_cmpl =
13498                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13499
13500         }
13501 }
13502
13503 /**
13504  * lpfc_sli4_hba_unset - Unset the fcoe hba
13505  * @phba: Pointer to HBA context object.
13506  *
13507  * This function is called in the SLI4 code path to reset the HBA's FCoE
13508  * function. The caller is not required to hold any lock. This routine
13509  * issues PCI function reset mailbox command to reset the FCoE function.
13510  * At the end of the function, it calls lpfc_hba_down_post function to
13511  * free any pending commands.
13512  **/
13513 static void
13514 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13515 {
13516         int wait_cnt = 0;
13517         LPFC_MBOXQ_t *mboxq;
13518         struct pci_dev *pdev = phba->pcidev;
13519
13520         lpfc_stop_hba_timers(phba);
13521         hrtimer_cancel(&phba->cmf_timer);
13522
13523         if (phba->pport)
13524                 phba->sli4_hba.intr_enable = 0;
13525
13526         /*
13527          * Gracefully wait out the potential current outstanding asynchronous
13528          * mailbox command.
13529          */
13530
13531         /* First, block any pending async mailbox command from posted */
13532         spin_lock_irq(&phba->hbalock);
13533         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13534         spin_unlock_irq(&phba->hbalock);
13535         /* Now, trying to wait it out if we can */
13536         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13537                 msleep(10);
13538                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13539                         break;
13540         }
13541         /* Forcefully release the outstanding mailbox command if timed out */
13542         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13543                 spin_lock_irq(&phba->hbalock);
13544                 mboxq = phba->sli.mbox_active;
13545                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13546                 __lpfc_mbox_cmpl_put(phba, mboxq);
13547                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13548                 phba->sli.mbox_active = NULL;
13549                 spin_unlock_irq(&phba->hbalock);
13550         }
13551
13552         /* Abort all iocbs associated with the hba */
13553         lpfc_sli_hba_iocb_abort(phba);
13554
13555         if (!pci_channel_offline(phba->pcidev))
13556                 /* Wait for completion of device XRI exchange busy */
13557                 lpfc_sli4_xri_exchange_busy_wait(phba);
13558
13559         /* per-phba callback de-registration for hotplug event */
13560         if (phba->pport)
13561                 lpfc_cpuhp_remove(phba);
13562
13563         /* Disable PCI subsystem interrupt */
13564         lpfc_sli4_disable_intr(phba);
13565
13566         /* Disable SR-IOV if enabled */
13567         if (phba->cfg_sriov_nr_virtfn)
13568                 pci_disable_sriov(pdev);
13569
13570         /* Stop kthread signal shall trigger work_done one more time */
13571         kthread_stop(phba->worker_thread);
13572
13573         /* Disable FW logging to host memory */
13574         lpfc_ras_stop_fwlog(phba);
13575
13576         /* Reset SLI4 HBA FCoE function */
13577         lpfc_pci_function_reset(phba);
13578
13579         /* release all queue allocated resources. */
13580         lpfc_sli4_queue_destroy(phba);
13581
13582         /* Free RAS DMA memory */
13583         if (phba->ras_fwlog.ras_enabled)
13584                 lpfc_sli4_ras_dma_free(phba);
13585
13586         /* Stop the SLI4 device port */
13587         if (phba->pport)
13588                 phba->pport->work_port_events = 0;
13589 }
13590
13591 static uint32_t
13592 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13593 {
13594         uint32_t msb = 0;
13595         uint32_t bit;
13596
13597         for (bit = 0; bit < 8; bit++) {
13598                 msb = (crc >> 31) & 1;
13599                 crc <<= 1;
13600
13601                 if (msb ^ (byte & 1)) {
13602                         crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13603                         crc |= 1;
13604                 }
13605                 byte >>= 1;
13606         }
13607         return crc;
13608 }
13609
13610 static uint32_t
13611 lpfc_cgn_reverse_bits(uint32_t wd)
13612 {
13613         uint32_t result = 0;
13614         uint32_t i;
13615
13616         for (i = 0; i < 32; i++) {
13617                 result <<= 1;
13618                 result |= (1 & (wd >> i));
13619         }
13620         return result;
13621 }
13622
13623 /*
13624  * The routine corresponds with the algorithm the HBA firmware
13625  * uses to validate the data integrity.
13626  */
13627 uint32_t
13628 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13629 {
13630         uint32_t  i;
13631         uint32_t result;
13632         uint8_t  *data = (uint8_t *)ptr;
13633
13634         for (i = 0; i < byteLen; ++i)
13635                 crc = lpfc_cgn_crc32(crc, data[i]);
13636
13637         result = ~lpfc_cgn_reverse_bits(crc);
13638         return result;
13639 }
13640
13641 void
13642 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13643 {
13644         struct lpfc_cgn_info *cp;
13645         struct timespec64 cmpl_time;
13646         struct tm broken;
13647         uint16_t size;
13648         uint32_t crc;
13649
13650         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13651                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13652
13653         if (!phba->cgn_i)
13654                 return;
13655         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13656
13657         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13658         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13659         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13660         atomic_set(&phba->cgn_sync_warn_cnt, 0);
13661
13662         atomic_set(&phba->cgn_driver_evt_cnt, 0);
13663         atomic_set(&phba->cgn_latency_evt_cnt, 0);
13664         atomic64_set(&phba->cgn_latency_evt, 0);
13665         phba->cgn_evt_minute = 0;
13666         phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13667
13668         memset(cp, 0xff, offsetof(struct lpfc_cgn_info, cgn_stat));
13669         cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13670         cp->cgn_info_version = LPFC_CGN_INFO_V3;
13671
13672         /* cgn parameters */
13673         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13674         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13675         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13676         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13677
13678         ktime_get_real_ts64(&cmpl_time);
13679         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13680
13681         cp->cgn_info_month = broken.tm_mon + 1;
13682         cp->cgn_info_day = broken.tm_mday;
13683         cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13684         cp->cgn_info_hour = broken.tm_hour;
13685         cp->cgn_info_minute = broken.tm_min;
13686         cp->cgn_info_second = broken.tm_sec;
13687
13688         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13689                         "2643 CGNInfo Init: Start Time "
13690                         "%d/%d/%d %d:%d:%d\n",
13691                         cp->cgn_info_day, cp->cgn_info_month,
13692                         cp->cgn_info_year, cp->cgn_info_hour,
13693                         cp->cgn_info_minute, cp->cgn_info_second);
13694
13695         /* Fill in default LUN qdepth */
13696         if (phba->pport) {
13697                 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13698                 cp->cgn_lunq = cpu_to_le16(size);
13699         }
13700
13701         /* last used Index initialized to 0xff already */
13702
13703         cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13704         cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13705         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13706         cp->cgn_info_crc = cpu_to_le32(crc);
13707
13708         phba->cgn_evt_timestamp = jiffies +
13709                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13710 }
13711
13712 void
13713 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13714 {
13715         struct lpfc_cgn_info *cp;
13716         struct timespec64 cmpl_time;
13717         struct tm broken;
13718         uint32_t crc;
13719
13720         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13721                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13722
13723         if (!phba->cgn_i)
13724                 return;
13725
13726         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13727         memset(&cp->cgn_stat, 0, sizeof(cp->cgn_stat));
13728
13729         ktime_get_real_ts64(&cmpl_time);
13730         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13731
13732         cp->cgn_stat_month = broken.tm_mon + 1;
13733         cp->cgn_stat_day = broken.tm_mday;
13734         cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13735         cp->cgn_stat_hour = broken.tm_hour;
13736         cp->cgn_stat_minute = broken.tm_min;
13737
13738         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13739                         "2647 CGNstat Init: Start Time "
13740                         "%d/%d/%d %d:%d\n",
13741                         cp->cgn_stat_day, cp->cgn_stat_month,
13742                         cp->cgn_stat_year, cp->cgn_stat_hour,
13743                         cp->cgn_stat_minute);
13744
13745         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13746         cp->cgn_info_crc = cpu_to_le32(crc);
13747 }
13748
13749 /**
13750  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13751  * @phba: Pointer to hba context object.
13752  * @reg: flag to determine register or unregister.
13753  */
13754 static int
13755 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13756 {
13757         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13758         union  lpfc_sli4_cfg_shdr *shdr;
13759         uint32_t shdr_status, shdr_add_status;
13760         LPFC_MBOXQ_t *mboxq;
13761         int length, rc;
13762
13763         if (!phba->cgn_i)
13764                 return -ENXIO;
13765
13766         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13767         if (!mboxq) {
13768                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13769                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13770                                 "HBA state x%x reg %d\n",
13771                                 phba->pport->port_state, reg);
13772                 return -ENOMEM;
13773         }
13774
13775         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13776                 sizeof(struct lpfc_sli4_cfg_mhdr));
13777         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13778                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13779                          LPFC_SLI4_MBX_EMBED);
13780         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13781         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13782         if (reg > 0)
13783                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13784         else
13785                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13786         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13787         reg_congestion_buf->addr_lo =
13788                 putPaddrLow(phba->cgn_i->phys);
13789         reg_congestion_buf->addr_hi =
13790                 putPaddrHigh(phba->cgn_i->phys);
13791
13792         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13793         shdr = (union lpfc_sli4_cfg_shdr *)
13794                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13795         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13796         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13797                                  &shdr->response);
13798         mempool_free(mboxq, phba->mbox_mem_pool);
13799         if (shdr_status || shdr_add_status || rc) {
13800                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13801                                 "2642 REG_CONGESTION_BUF mailbox "
13802                                 "failed with status x%x add_status x%x,"
13803                                 " mbx status x%x reg %d\n",
13804                                 shdr_status, shdr_add_status, rc, reg);
13805                 return -ENXIO;
13806         }
13807         return 0;
13808 }
13809
13810 int
13811 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13812 {
13813         lpfc_cmf_stop(phba);
13814         return __lpfc_reg_congestion_buf(phba, 0);
13815 }
13816
13817 int
13818 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13819 {
13820         return __lpfc_reg_congestion_buf(phba, 1);
13821 }
13822
13823 /**
13824  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13825  * @phba: Pointer to HBA context object.
13826  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13827  *
13828  * This function is called in the SLI4 code path to read the port's
13829  * sli4 capabilities.
13830  *
13831  * This function may be be called from any context that can block-wait
13832  * for the completion.  The expectation is that this routine is called
13833  * typically from probe_one or from the online routine.
13834  **/
13835 int
13836 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13837 {
13838         int rc;
13839         struct lpfc_mqe *mqe = &mboxq->u.mqe;
13840         struct lpfc_pc_sli4_params *sli4_params;
13841         uint32_t mbox_tmo;
13842         int length;
13843         bool exp_wqcq_pages = true;
13844         struct lpfc_sli4_parameters *mbx_sli4_parameters;
13845
13846         /*
13847          * By default, the driver assumes the SLI4 port requires RPI
13848          * header postings.  The SLI4_PARAM response will correct this
13849          * assumption.
13850          */
13851         phba->sli4_hba.rpi_hdrs_in_use = 1;
13852
13853         /* Read the port's SLI4 Config Parameters */
13854         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13855                   sizeof(struct lpfc_sli4_cfg_mhdr));
13856         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13857                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13858                          length, LPFC_SLI4_MBX_EMBED);
13859         if (!phba->sli4_hba.intr_enable)
13860                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13861         else {
13862                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13863                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13864         }
13865         if (unlikely(rc))
13866                 return rc;
13867         sli4_params = &phba->sli4_hba.pc_sli4_params;
13868         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13869         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13870         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13871         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13872         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13873                                              mbx_sli4_parameters);
13874         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13875                                              mbx_sli4_parameters);
13876         if (bf_get(cfg_phwq, mbx_sli4_parameters))
13877                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13878         else
13879                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13880         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13881         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13882                                            mbx_sli4_parameters);
13883         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13884         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13885         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13886         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13887         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13888         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13889         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13890         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13891         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13892         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13893         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13894                                             mbx_sli4_parameters);
13895         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13896         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13897                                            mbx_sli4_parameters);
13898         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13899         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13900         sli4_params->mi_cap = bf_get(cfg_mi_ver, mbx_sli4_parameters);
13901
13902         /* Check for Extended Pre-Registered SGL support */
13903         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13904
13905         /* Check for firmware nvme support */
13906         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13907                      bf_get(cfg_xib, mbx_sli4_parameters));
13908
13909         if (rc) {
13910                 /* Save this to indicate the Firmware supports NVME */
13911                 sli4_params->nvme = 1;
13912
13913                 /* Firmware NVME support, check driver FC4 NVME support */
13914                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13915                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13916                                         "6133 Disabling NVME support: "
13917                                         "FC4 type not supported: x%x\n",
13918                                         phba->cfg_enable_fc4_type);
13919                         goto fcponly;
13920                 }
13921         } else {
13922                 /* No firmware NVME support, check driver FC4 NVME support */
13923                 sli4_params->nvme = 0;
13924                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13925                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13926                                         "6101 Disabling NVME support: Not "
13927                                         "supported by firmware (%d %d) x%x\n",
13928                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13929                                         bf_get(cfg_xib, mbx_sli4_parameters),
13930                                         phba->cfg_enable_fc4_type);
13931 fcponly:
13932                         phba->nvmet_support = 0;
13933                         phba->cfg_nvmet_mrq = 0;
13934                         phba->cfg_nvme_seg_cnt = 0;
13935
13936                         /* If no FC4 type support, move to just SCSI support */
13937                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13938                                 return -ENODEV;
13939                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13940                 }
13941         }
13942
13943         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13944          * accommodate 512K and 1M IOs in a single nvme buf.
13945          */
13946         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13947                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13948
13949         /* Enable embedded Payload BDE if support is indicated */
13950         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13951                 phba->cfg_enable_pbde = 1;
13952         else
13953                 phba->cfg_enable_pbde = 0;
13954
13955         /*
13956          * To support Suppress Response feature we must satisfy 3 conditions.
13957          * lpfc_suppress_rsp module parameter must be set (default).
13958          * In SLI4-Parameters Descriptor:
13959          * Extended Inline Buffers (XIB) must be supported.
13960          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13961          * (double negative).
13962          */
13963         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13964             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13965                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13966         else
13967                 phba->cfg_suppress_rsp = 0;
13968
13969         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13970                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13971
13972         /* Make sure that sge_supp_len can be handled by the driver */
13973         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13974                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13975
13976         rc = dma_set_max_seg_size(&phba->pcidev->dev, sli4_params->sge_supp_len);
13977         if (unlikely(rc)) {
13978                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13979                                 "6400 Can't set dma maximum segment size\n");
13980                 return rc;
13981         }
13982
13983         /*
13984          * Check whether the adapter supports an embedded copy of the
13985          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13986          * to use this option, 128-byte WQEs must be used.
13987          */
13988         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13989                 phba->fcp_embed_io = 1;
13990         else
13991                 phba->fcp_embed_io = 0;
13992
13993         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13994                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13995                         bf_get(cfg_xib, mbx_sli4_parameters),
13996                         phba->cfg_enable_pbde,
13997                         phba->fcp_embed_io, sli4_params->nvme,
13998                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13999
14000         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
14001             LPFC_SLI_INTF_IF_TYPE_2) &&
14002             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
14003                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
14004                 exp_wqcq_pages = false;
14005
14006         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
14007             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
14008             exp_wqcq_pages &&
14009             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
14010                 phba->enab_exp_wqcq_pages = 1;
14011         else
14012                 phba->enab_exp_wqcq_pages = 0;
14013         /*
14014          * Check if the SLI port supports MDS Diagnostics
14015          */
14016         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
14017                 phba->mds_diags_support = 1;
14018         else
14019                 phba->mds_diags_support = 0;
14020
14021         /*
14022          * Check if the SLI port supports NSLER
14023          */
14024         if (bf_get(cfg_nsler, mbx_sli4_parameters))
14025                 phba->nsler = 1;
14026         else
14027                 phba->nsler = 0;
14028
14029         return 0;
14030 }
14031
14032 /**
14033  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
14034  * @pdev: pointer to PCI device
14035  * @pid: pointer to PCI device identifier
14036  *
14037  * This routine is to be called to attach a device with SLI-3 interface spec
14038  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14039  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14040  * information of the device and driver to see if the driver state that it can
14041  * support this kind of device. If the match is successful, the driver core
14042  * invokes this routine. If this routine determines it can claim the HBA, it
14043  * does all the initialization that it needs to do to handle the HBA properly.
14044  *
14045  * Return code
14046  *      0 - driver can claim the device
14047  *      negative value - driver can not claim the device
14048  **/
14049 static int
14050 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
14051 {
14052         struct lpfc_hba   *phba;
14053         struct lpfc_vport *vport = NULL;
14054         struct Scsi_Host  *shost = NULL;
14055         int error;
14056         uint32_t cfg_mode, intr_mode;
14057
14058         /* Allocate memory for HBA structure */
14059         phba = lpfc_hba_alloc(pdev);
14060         if (!phba)
14061                 return -ENOMEM;
14062
14063         /* Perform generic PCI device enabling operation */
14064         error = lpfc_enable_pci_dev(phba);
14065         if (error)
14066                 goto out_free_phba;
14067
14068         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
14069         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
14070         if (error)
14071                 goto out_disable_pci_dev;
14072
14073         /* Set up SLI-3 specific device PCI memory space */
14074         error = lpfc_sli_pci_mem_setup(phba);
14075         if (error) {
14076                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14077                                 "1402 Failed to set up pci memory space.\n");
14078                 goto out_disable_pci_dev;
14079         }
14080
14081         /* Set up SLI-3 specific device driver resources */
14082         error = lpfc_sli_driver_resource_setup(phba);
14083         if (error) {
14084                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14085                                 "1404 Failed to set up driver resource.\n");
14086                 goto out_unset_pci_mem_s3;
14087         }
14088
14089         /* Initialize and populate the iocb list per host */
14090
14091         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
14092         if (error) {
14093                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14094                                 "1405 Failed to initialize iocb list.\n");
14095                 goto out_unset_driver_resource_s3;
14096         }
14097
14098         /* Set up common device driver resources */
14099         error = lpfc_setup_driver_resource_phase2(phba);
14100         if (error) {
14101                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14102                                 "1406 Failed to set up driver resource.\n");
14103                 goto out_free_iocb_list;
14104         }
14105
14106         /* Get the default values for Model Name and Description */
14107         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14108
14109         /* Create SCSI host to the physical port */
14110         error = lpfc_create_shost(phba);
14111         if (error) {
14112                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14113                                 "1407 Failed to create scsi host.\n");
14114                 goto out_unset_driver_resource;
14115         }
14116
14117         /* Configure sysfs attributes */
14118         vport = phba->pport;
14119         error = lpfc_alloc_sysfs_attr(vport);
14120         if (error) {
14121                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14122                                 "1476 Failed to allocate sysfs attr\n");
14123                 goto out_destroy_shost;
14124         }
14125
14126         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14127         /* Now, trying to enable interrupt and bring up the device */
14128         cfg_mode = phba->cfg_use_msi;
14129         while (true) {
14130                 /* Put device to a known state before enabling interrupt */
14131                 lpfc_stop_port(phba);
14132                 /* Configure and enable interrupt */
14133                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
14134                 if (intr_mode == LPFC_INTR_ERROR) {
14135                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14136                                         "0431 Failed to enable interrupt.\n");
14137                         error = -ENODEV;
14138                         goto out_free_sysfs_attr;
14139                 }
14140                 /* SLI-3 HBA setup */
14141                 if (lpfc_sli_hba_setup(phba)) {
14142                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14143                                         "1477 Failed to set up hba\n");
14144                         error = -ENODEV;
14145                         goto out_remove_device;
14146                 }
14147
14148                 /* Wait 50ms for the interrupts of previous mailbox commands */
14149                 msleep(50);
14150                 /* Check active interrupts on message signaled interrupts */
14151                 if (intr_mode == 0 ||
14152                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
14153                         /* Log the current active interrupt mode */
14154                         phba->intr_mode = intr_mode;
14155                         lpfc_log_intr_mode(phba, intr_mode);
14156                         break;
14157                 } else {
14158                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14159                                         "0447 Configure interrupt mode (%d) "
14160                                         "failed active interrupt test.\n",
14161                                         intr_mode);
14162                         /* Disable the current interrupt mode */
14163                         lpfc_sli_disable_intr(phba);
14164                         /* Try next level of interrupt mode */
14165                         cfg_mode = --intr_mode;
14166                 }
14167         }
14168
14169         /* Perform post initialization setup */
14170         lpfc_post_init_setup(phba);
14171
14172         /* Check if there are static vports to be created. */
14173         lpfc_create_static_vport(phba);
14174
14175         return 0;
14176
14177 out_remove_device:
14178         lpfc_unset_hba(phba);
14179 out_free_sysfs_attr:
14180         lpfc_free_sysfs_attr(vport);
14181 out_destroy_shost:
14182         lpfc_destroy_shost(phba);
14183 out_unset_driver_resource:
14184         lpfc_unset_driver_resource_phase2(phba);
14185 out_free_iocb_list:
14186         lpfc_free_iocb_list(phba);
14187 out_unset_driver_resource_s3:
14188         lpfc_sli_driver_resource_unset(phba);
14189 out_unset_pci_mem_s3:
14190         lpfc_sli_pci_mem_unset(phba);
14191 out_disable_pci_dev:
14192         lpfc_disable_pci_dev(phba);
14193         if (shost)
14194                 scsi_host_put(shost);
14195 out_free_phba:
14196         lpfc_hba_free(phba);
14197         return error;
14198 }
14199
14200 /**
14201  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
14202  * @pdev: pointer to PCI device
14203  *
14204  * This routine is to be called to disattach a device with SLI-3 interface
14205  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14206  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14207  * device to be removed from the PCI subsystem properly.
14208  **/
14209 static void
14210 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14211 {
14212         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
14213         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14214         struct lpfc_vport **vports;
14215         struct lpfc_hba   *phba = vport->phba;
14216         int i;
14217
14218         spin_lock_irq(&phba->hbalock);
14219         vport->load_flag |= FC_UNLOADING;
14220         spin_unlock_irq(&phba->hbalock);
14221
14222         lpfc_free_sysfs_attr(vport);
14223
14224         /* Release all the vports against this physical port */
14225         vports = lpfc_create_vport_work_array(phba);
14226         if (vports != NULL)
14227                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14228                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14229                                 continue;
14230                         fc_vport_terminate(vports[i]->fc_vport);
14231                 }
14232         lpfc_destroy_vport_work_array(phba, vports);
14233
14234         /* Remove FC host with the physical port */
14235         fc_remove_host(shost);
14236         scsi_remove_host(shost);
14237
14238         /* Clean up all nodes, mailboxes and IOs. */
14239         lpfc_cleanup(vport);
14240
14241         /*
14242          * Bring down the SLI Layer. This step disable all interrupts,
14243          * clears the rings, discards all mailbox commands, and resets
14244          * the HBA.
14245          */
14246
14247         /* HBA interrupt will be disabled after this call */
14248         lpfc_sli_hba_down(phba);
14249         /* Stop kthread signal shall trigger work_done one more time */
14250         kthread_stop(phba->worker_thread);
14251         /* Final cleanup of txcmplq and reset the HBA */
14252         lpfc_sli_brdrestart(phba);
14253
14254         kfree(phba->vpi_bmask);
14255         kfree(phba->vpi_ids);
14256
14257         lpfc_stop_hba_timers(phba);
14258         spin_lock_irq(&phba->port_list_lock);
14259         list_del_init(&vport->listentry);
14260         spin_unlock_irq(&phba->port_list_lock);
14261
14262         lpfc_debugfs_terminate(vport);
14263
14264         /* Disable SR-IOV if enabled */
14265         if (phba->cfg_sriov_nr_virtfn)
14266                 pci_disable_sriov(pdev);
14267
14268         /* Disable interrupt */
14269         lpfc_sli_disable_intr(phba);
14270
14271         scsi_host_put(shost);
14272
14273         /*
14274          * Call scsi_free before mem_free since scsi bufs are released to their
14275          * corresponding pools here.
14276          */
14277         lpfc_scsi_free(phba);
14278         lpfc_free_iocb_list(phba);
14279
14280         lpfc_mem_free_all(phba);
14281
14282         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
14283                           phba->hbqslimp.virt, phba->hbqslimp.phys);
14284
14285         /* Free resources associated with SLI2 interface */
14286         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
14287                           phba->slim2p.virt, phba->slim2p.phys);
14288
14289         /* unmap adapter SLIM and Control Registers */
14290         iounmap(phba->ctrl_regs_memmap_p);
14291         iounmap(phba->slim_memmap_p);
14292
14293         lpfc_hba_free(phba);
14294
14295         pci_release_mem_regions(pdev);
14296         pci_disable_device(pdev);
14297 }
14298
14299 /**
14300  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14301  * @dev_d: pointer to device
14302  *
14303  * This routine is to be called from the kernel's PCI subsystem to support
14304  * system Power Management (PM) to device with SLI-3 interface spec. When
14305  * PM invokes this method, it quiesces the device by stopping the driver's
14306  * worker thread for the device, turning off device's interrupt and DMA,
14307  * and bring the device offline. Note that as the driver implements the
14308  * minimum PM requirements to a power-aware driver's PM support for the
14309  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14310  * to the suspend() method call will be treated as SUSPEND and the driver will
14311  * fully reinitialize its device during resume() method call, the driver will
14312  * set device to PCI_D3hot state in PCI config space instead of setting it
14313  * according to the @msg provided by the PM.
14314  *
14315  * Return code
14316  *      0 - driver suspended the device
14317  *      Error otherwise
14318  **/
14319 static int __maybe_unused
14320 lpfc_pci_suspend_one_s3(struct device *dev_d)
14321 {
14322         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14323         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14324
14325         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14326                         "0473 PCI device Power Management suspend.\n");
14327
14328         /* Bring down the device */
14329         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14330         lpfc_offline(phba);
14331         kthread_stop(phba->worker_thread);
14332
14333         /* Disable interrupt from device */
14334         lpfc_sli_disable_intr(phba);
14335
14336         return 0;
14337 }
14338
14339 /**
14340  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14341  * @dev_d: pointer to device
14342  *
14343  * This routine is to be called from the kernel's PCI subsystem to support
14344  * system Power Management (PM) to device with SLI-3 interface spec. When PM
14345  * invokes this method, it restores the device's PCI config space state and
14346  * fully reinitializes the device and brings it online. Note that as the
14347  * driver implements the minimum PM requirements to a power-aware driver's
14348  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14349  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14350  * driver will fully reinitialize its device during resume() method call,
14351  * the device will be set to PCI_D0 directly in PCI config space before
14352  * restoring the state.
14353  *
14354  * Return code
14355  *      0 - driver suspended the device
14356  *      Error otherwise
14357  **/
14358 static int __maybe_unused
14359 lpfc_pci_resume_one_s3(struct device *dev_d)
14360 {
14361         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14362         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14363         uint32_t intr_mode;
14364         int error;
14365
14366         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14367                         "0452 PCI device Power Management resume.\n");
14368
14369         /* Startup the kernel thread for this host adapter. */
14370         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14371                                         "lpfc_worker_%d", phba->brd_no);
14372         if (IS_ERR(phba->worker_thread)) {
14373                 error = PTR_ERR(phba->worker_thread);
14374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14375                                 "0434 PM resume failed to start worker "
14376                                 "thread: error=x%x.\n", error);
14377                 return error;
14378         }
14379
14380         /* Init cpu_map array */
14381         lpfc_cpu_map_array_init(phba);
14382         /* Init hba_eq_hdl array */
14383         lpfc_hba_eq_hdl_array_init(phba);
14384         /* Configure and enable interrupt */
14385         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14386         if (intr_mode == LPFC_INTR_ERROR) {
14387                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14388                                 "0430 PM resume Failed to enable interrupt\n");
14389                 return -EIO;
14390         } else
14391                 phba->intr_mode = intr_mode;
14392
14393         /* Restart HBA and bring it online */
14394         lpfc_sli_brdrestart(phba);
14395         lpfc_online(phba);
14396
14397         /* Log the current active interrupt mode */
14398         lpfc_log_intr_mode(phba, phba->intr_mode);
14399
14400         return 0;
14401 }
14402
14403 /**
14404  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14405  * @phba: pointer to lpfc hba data structure.
14406  *
14407  * This routine is called to prepare the SLI3 device for PCI slot recover. It
14408  * aborts all the outstanding SCSI I/Os to the pci device.
14409  **/
14410 static void
14411 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14412 {
14413         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14414                         "2723 PCI channel I/O abort preparing for recovery\n");
14415
14416         /*
14417          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14418          * and let the SCSI mid-layer to retry them to recover.
14419          */
14420         lpfc_sli_abort_fcp_rings(phba);
14421 }
14422
14423 /**
14424  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14425  * @phba: pointer to lpfc hba data structure.
14426  *
14427  * This routine is called to prepare the SLI3 device for PCI slot reset. It
14428  * disables the device interrupt and pci device, and aborts the internal FCP
14429  * pending I/Os.
14430  **/
14431 static void
14432 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14433 {
14434         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14435                         "2710 PCI channel disable preparing for reset\n");
14436
14437         /* Block any management I/Os to the device */
14438         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14439
14440         /* Block all SCSI devices' I/Os on the host */
14441         lpfc_scsi_dev_block(phba);
14442
14443         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14444         lpfc_sli_flush_io_rings(phba);
14445
14446         /* stop all timers */
14447         lpfc_stop_hba_timers(phba);
14448
14449         /* Disable interrupt and pci device */
14450         lpfc_sli_disable_intr(phba);
14451         pci_disable_device(phba->pcidev);
14452 }
14453
14454 /**
14455  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14456  * @phba: pointer to lpfc hba data structure.
14457  *
14458  * This routine is called to prepare the SLI3 device for PCI slot permanently
14459  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14460  * pending I/Os.
14461  **/
14462 static void
14463 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14464 {
14465         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14466                         "2711 PCI channel permanent disable for failure\n");
14467         /* Block all SCSI devices' I/Os on the host */
14468         lpfc_scsi_dev_block(phba);
14469         lpfc_sli4_prep_dev_for_reset(phba);
14470
14471         /* stop all timers */
14472         lpfc_stop_hba_timers(phba);
14473
14474         /* Clean up all driver's outstanding SCSI I/Os */
14475         lpfc_sli_flush_io_rings(phba);
14476 }
14477
14478 /**
14479  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14480  * @pdev: pointer to PCI device.
14481  * @state: the current PCI connection state.
14482  *
14483  * This routine is called from the PCI subsystem for I/O error handling to
14484  * device with SLI-3 interface spec. This function is called by the PCI
14485  * subsystem after a PCI bus error affecting this device has been detected.
14486  * When this function is invoked, it will need to stop all the I/Os and
14487  * interrupt(s) to the device. Once that is done, it will return
14488  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14489  * as desired.
14490  *
14491  * Return codes
14492  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14493  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14494  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14495  **/
14496 static pci_ers_result_t
14497 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14498 {
14499         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14500         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14501
14502         switch (state) {
14503         case pci_channel_io_normal:
14504                 /* Non-fatal error, prepare for recovery */
14505                 lpfc_sli_prep_dev_for_recover(phba);
14506                 return PCI_ERS_RESULT_CAN_RECOVER;
14507         case pci_channel_io_frozen:
14508                 /* Fatal error, prepare for slot reset */
14509                 lpfc_sli_prep_dev_for_reset(phba);
14510                 return PCI_ERS_RESULT_NEED_RESET;
14511         case pci_channel_io_perm_failure:
14512                 /* Permanent failure, prepare for device down */
14513                 lpfc_sli_prep_dev_for_perm_failure(phba);
14514                 return PCI_ERS_RESULT_DISCONNECT;
14515         default:
14516                 /* Unknown state, prepare and request slot reset */
14517                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14518                                 "0472 Unknown PCI error state: x%x\n", state);
14519                 lpfc_sli_prep_dev_for_reset(phba);
14520                 return PCI_ERS_RESULT_NEED_RESET;
14521         }
14522 }
14523
14524 /**
14525  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14526  * @pdev: pointer to PCI device.
14527  *
14528  * This routine is called from the PCI subsystem for error handling to
14529  * device with SLI-3 interface spec. This is called after PCI bus has been
14530  * reset to restart the PCI card from scratch, as if from a cold-boot.
14531  * During the PCI subsystem error recovery, after driver returns
14532  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14533  * recovery and then call this routine before calling the .resume method
14534  * to recover the device. This function will initialize the HBA device,
14535  * enable the interrupt, but it will just put the HBA to offline state
14536  * without passing any I/O traffic.
14537  *
14538  * Return codes
14539  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14540  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14541  */
14542 static pci_ers_result_t
14543 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14544 {
14545         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14546         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14547         struct lpfc_sli *psli = &phba->sli;
14548         uint32_t intr_mode;
14549
14550         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14551         if (pci_enable_device_mem(pdev)) {
14552                 printk(KERN_ERR "lpfc: Cannot re-enable "
14553                         "PCI device after reset.\n");
14554                 return PCI_ERS_RESULT_DISCONNECT;
14555         }
14556
14557         pci_restore_state(pdev);
14558
14559         /*
14560          * As the new kernel behavior of pci_restore_state() API call clears
14561          * device saved_state flag, need to save the restored state again.
14562          */
14563         pci_save_state(pdev);
14564
14565         if (pdev->is_busmaster)
14566                 pci_set_master(pdev);
14567
14568         spin_lock_irq(&phba->hbalock);
14569         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14570         spin_unlock_irq(&phba->hbalock);
14571
14572         /* Configure and enable interrupt */
14573         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14574         if (intr_mode == LPFC_INTR_ERROR) {
14575                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14576                                 "0427 Cannot re-enable interrupt after "
14577                                 "slot reset.\n");
14578                 return PCI_ERS_RESULT_DISCONNECT;
14579         } else
14580                 phba->intr_mode = intr_mode;
14581
14582         /* Take device offline, it will perform cleanup */
14583         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14584         lpfc_offline(phba);
14585         lpfc_sli_brdrestart(phba);
14586
14587         /* Log the current active interrupt mode */
14588         lpfc_log_intr_mode(phba, phba->intr_mode);
14589
14590         return PCI_ERS_RESULT_RECOVERED;
14591 }
14592
14593 /**
14594  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14595  * @pdev: pointer to PCI device
14596  *
14597  * This routine is called from the PCI subsystem for error handling to device
14598  * with SLI-3 interface spec. It is called when kernel error recovery tells
14599  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14600  * error recovery. After this call, traffic can start to flow from this device
14601  * again.
14602  */
14603 static void
14604 lpfc_io_resume_s3(struct pci_dev *pdev)
14605 {
14606         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14607         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14608
14609         /* Bring device online, it will be no-op for non-fatal error resume */
14610         lpfc_online(phba);
14611 }
14612
14613 /**
14614  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14615  * @phba: pointer to lpfc hba data structure.
14616  *
14617  * returns the number of ELS/CT IOCBs to reserve
14618  **/
14619 int
14620 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14621 {
14622         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14623
14624         if (phba->sli_rev == LPFC_SLI_REV4) {
14625                 if (max_xri <= 100)
14626                         return 10;
14627                 else if (max_xri <= 256)
14628                         return 25;
14629                 else if (max_xri <= 512)
14630                         return 50;
14631                 else if (max_xri <= 1024)
14632                         return 100;
14633                 else if (max_xri <= 1536)
14634                         return 150;
14635                 else if (max_xri <= 2048)
14636                         return 200;
14637                 else
14638                         return 250;
14639         } else
14640                 return 0;
14641 }
14642
14643 /**
14644  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14645  * @phba: pointer to lpfc hba data structure.
14646  *
14647  * returns the number of ELS/CT + NVMET IOCBs to reserve
14648  **/
14649 int
14650 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14651 {
14652         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14653
14654         if (phba->nvmet_support)
14655                 max_xri += LPFC_NVMET_BUF_POST;
14656         return max_xri;
14657 }
14658
14659
14660 static int
14661 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14662         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14663         const struct firmware *fw)
14664 {
14665         int rc;
14666         u8 sli_family;
14667
14668         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14669         /* Three cases:  (1) FW was not supported on the detected adapter.
14670          * (2) FW update has been locked out administratively.
14671          * (3) Some other error during FW update.
14672          * In each case, an unmaskable message is written to the console
14673          * for admin diagnosis.
14674          */
14675         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14676             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14677              magic_number != MAGIC_NUMBER_G6) ||
14678             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14679              magic_number != MAGIC_NUMBER_G7) ||
14680             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14681              magic_number != MAGIC_NUMBER_G7P)) {
14682                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14683                                 "3030 This firmware version is not supported on"
14684                                 " this HBA model. Device:%x Magic:%x Type:%x "
14685                                 "ID:%x Size %d %zd\n",
14686                                 phba->pcidev->device, magic_number, ftype, fid,
14687                                 fsize, fw->size);
14688                 rc = -EINVAL;
14689         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14690                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14691                                 "3021 Firmware downloads have been prohibited "
14692                                 "by a system configuration setting on "
14693                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14694                                 "%zd\n",
14695                                 phba->pcidev->device, magic_number, ftype, fid,
14696                                 fsize, fw->size);
14697                 rc = -EACCES;
14698         } else {
14699                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14700                                 "3022 FW Download failed. Add Status x%x "
14701                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14702                                 "%zd\n",
14703                                 offset, phba->pcidev->device, magic_number,
14704                                 ftype, fid, fsize, fw->size);
14705                 rc = -EIO;
14706         }
14707         return rc;
14708 }
14709
14710 /**
14711  * lpfc_write_firmware - attempt to write a firmware image to the port
14712  * @fw: pointer to firmware image returned from request_firmware.
14713  * @context: pointer to firmware image returned from request_firmware.
14714  *
14715  **/
14716 static void
14717 lpfc_write_firmware(const struct firmware *fw, void *context)
14718 {
14719         struct lpfc_hba *phba = (struct lpfc_hba *)context;
14720         char fwrev[FW_REV_STR_SIZE];
14721         struct lpfc_grp_hdr *image;
14722         struct list_head dma_buffer_list;
14723         int i, rc = 0;
14724         struct lpfc_dmabuf *dmabuf, *next;
14725         uint32_t offset = 0, temp_offset = 0;
14726         uint32_t magic_number, ftype, fid, fsize;
14727
14728         /* It can be null in no-wait mode, sanity check */
14729         if (!fw) {
14730                 rc = -ENXIO;
14731                 goto out;
14732         }
14733         image = (struct lpfc_grp_hdr *)fw->data;
14734
14735         magic_number = be32_to_cpu(image->magic_number);
14736         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14737         fid = bf_get_be32(lpfc_grp_hdr_id, image);
14738         fsize = be32_to_cpu(image->size);
14739
14740         INIT_LIST_HEAD(&dma_buffer_list);
14741         lpfc_decode_firmware_rev(phba, fwrev, 1);
14742         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14743                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14744                                 "3023 Updating Firmware, Current Version:%s "
14745                                 "New Version:%s\n",
14746                                 fwrev, image->revision);
14747                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14748                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14749                                          GFP_KERNEL);
14750                         if (!dmabuf) {
14751                                 rc = -ENOMEM;
14752                                 goto release_out;
14753                         }
14754                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14755                                                           SLI4_PAGE_SIZE,
14756                                                           &dmabuf->phys,
14757                                                           GFP_KERNEL);
14758                         if (!dmabuf->virt) {
14759                                 kfree(dmabuf);
14760                                 rc = -ENOMEM;
14761                                 goto release_out;
14762                         }
14763                         list_add_tail(&dmabuf->list, &dma_buffer_list);
14764                 }
14765                 while (offset < fw->size) {
14766                         temp_offset = offset;
14767                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14768                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14769                                         memcpy(dmabuf->virt,
14770                                                fw->data + temp_offset,
14771                                                fw->size - temp_offset);
14772                                         temp_offset = fw->size;
14773                                         break;
14774                                 }
14775                                 memcpy(dmabuf->virt, fw->data + temp_offset,
14776                                        SLI4_PAGE_SIZE);
14777                                 temp_offset += SLI4_PAGE_SIZE;
14778                         }
14779                         rc = lpfc_wr_object(phba, &dma_buffer_list,
14780                                     (fw->size - offset), &offset);
14781                         if (rc) {
14782                                 rc = lpfc_log_write_firmware_error(phba, offset,
14783                                                                    magic_number,
14784                                                                    ftype,
14785                                                                    fid,
14786                                                                    fsize,
14787                                                                    fw);
14788                                 goto release_out;
14789                         }
14790                 }
14791                 rc = offset;
14792         } else
14793                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14794                                 "3029 Skipped Firmware update, Current "
14795                                 "Version:%s New Version:%s\n",
14796                                 fwrev, image->revision);
14797
14798 release_out:
14799         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14800                 list_del(&dmabuf->list);
14801                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14802                                   dmabuf->virt, dmabuf->phys);
14803                 kfree(dmabuf);
14804         }
14805         release_firmware(fw);
14806 out:
14807         if (rc < 0)
14808                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14809                                 "3062 Firmware update error, status %d.\n", rc);
14810         else
14811                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14812                                 "3024 Firmware update success: size %d.\n", rc);
14813 }
14814
14815 /**
14816  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14817  * @phba: pointer to lpfc hba data structure.
14818  * @fw_upgrade: which firmware to update.
14819  *
14820  * This routine is called to perform Linux generic firmware upgrade on device
14821  * that supports such feature.
14822  **/
14823 int
14824 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14825 {
14826         uint8_t file_name[ELX_MODEL_NAME_SIZE];
14827         int ret;
14828         const struct firmware *fw;
14829
14830         /* Only supported on SLI4 interface type 2 for now */
14831         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14832             LPFC_SLI_INTF_IF_TYPE_2)
14833                 return -EPERM;
14834
14835         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
14836
14837         if (fw_upgrade == INT_FW_UPGRADE) {
14838                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14839                                         file_name, &phba->pcidev->dev,
14840                                         GFP_KERNEL, (void *)phba,
14841                                         lpfc_write_firmware);
14842         } else if (fw_upgrade == RUN_FW_UPGRADE) {
14843                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14844                 if (!ret)
14845                         lpfc_write_firmware(fw, (void *)phba);
14846         } else {
14847                 ret = -EINVAL;
14848         }
14849
14850         return ret;
14851 }
14852
14853 /**
14854  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14855  * @pdev: pointer to PCI device
14856  * @pid: pointer to PCI device identifier
14857  *
14858  * This routine is called from the kernel's PCI subsystem to device with
14859  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14860  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14861  * information of the device and driver to see if the driver state that it
14862  * can support this kind of device. If the match is successful, the driver
14863  * core invokes this routine. If this routine determines it can claim the HBA,
14864  * it does all the initialization that it needs to do to handle the HBA
14865  * properly.
14866  *
14867  * Return code
14868  *      0 - driver can claim the device
14869  *      negative value - driver can not claim the device
14870  **/
14871 static int
14872 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14873 {
14874         struct lpfc_hba   *phba;
14875         struct lpfc_vport *vport = NULL;
14876         struct Scsi_Host  *shost = NULL;
14877         int error;
14878         uint32_t cfg_mode, intr_mode;
14879
14880         /* Allocate memory for HBA structure */
14881         phba = lpfc_hba_alloc(pdev);
14882         if (!phba)
14883                 return -ENOMEM;
14884
14885         INIT_LIST_HEAD(&phba->poll_list);
14886
14887         /* Perform generic PCI device enabling operation */
14888         error = lpfc_enable_pci_dev(phba);
14889         if (error)
14890                 goto out_free_phba;
14891
14892         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14893         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14894         if (error)
14895                 goto out_disable_pci_dev;
14896
14897         /* Set up SLI-4 specific device PCI memory space */
14898         error = lpfc_sli4_pci_mem_setup(phba);
14899         if (error) {
14900                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14901                                 "1410 Failed to set up pci memory space.\n");
14902                 goto out_disable_pci_dev;
14903         }
14904
14905         /* Set up SLI-4 Specific device driver resources */
14906         error = lpfc_sli4_driver_resource_setup(phba);
14907         if (error) {
14908                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14909                                 "1412 Failed to set up driver resource.\n");
14910                 goto out_unset_pci_mem_s4;
14911         }
14912
14913         INIT_LIST_HEAD(&phba->active_rrq_list);
14914         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14915
14916         /* Set up common device driver resources */
14917         error = lpfc_setup_driver_resource_phase2(phba);
14918         if (error) {
14919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14920                                 "1414 Failed to set up driver resource.\n");
14921                 goto out_unset_driver_resource_s4;
14922         }
14923
14924         /* Get the default values for Model Name and Description */
14925         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14926
14927         /* Now, trying to enable interrupt and bring up the device */
14928         cfg_mode = phba->cfg_use_msi;
14929
14930         /* Put device to a known state before enabling interrupt */
14931         phba->pport = NULL;
14932         lpfc_stop_port(phba);
14933
14934         /* Init cpu_map array */
14935         lpfc_cpu_map_array_init(phba);
14936
14937         /* Init hba_eq_hdl array */
14938         lpfc_hba_eq_hdl_array_init(phba);
14939
14940         /* Configure and enable interrupt */
14941         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14942         if (intr_mode == LPFC_INTR_ERROR) {
14943                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14944                                 "0426 Failed to enable interrupt.\n");
14945                 error = -ENODEV;
14946                 goto out_unset_driver_resource;
14947         }
14948         /* Default to single EQ for non-MSI-X */
14949         if (phba->intr_type != MSIX) {
14950                 phba->cfg_irq_chann = 1;
14951                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14952                         if (phba->nvmet_support)
14953                                 phba->cfg_nvmet_mrq = 1;
14954                 }
14955         }
14956         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14957
14958         /* Create SCSI host to the physical port */
14959         error = lpfc_create_shost(phba);
14960         if (error) {
14961                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14962                                 "1415 Failed to create scsi host.\n");
14963                 goto out_disable_intr;
14964         }
14965         vport = phba->pport;
14966         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14967
14968         /* Configure sysfs attributes */
14969         error = lpfc_alloc_sysfs_attr(vport);
14970         if (error) {
14971                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14972                                 "1416 Failed to allocate sysfs attr\n");
14973                 goto out_destroy_shost;
14974         }
14975
14976         /* Set up SLI-4 HBA */
14977         if (lpfc_sli4_hba_setup(phba)) {
14978                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14979                                 "1421 Failed to set up hba\n");
14980                 error = -ENODEV;
14981                 goto out_free_sysfs_attr;
14982         }
14983
14984         /* Log the current active interrupt mode */
14985         phba->intr_mode = intr_mode;
14986         lpfc_log_intr_mode(phba, intr_mode);
14987
14988         /* Perform post initialization setup */
14989         lpfc_post_init_setup(phba);
14990
14991         /* NVME support in FW earlier in the driver load corrects the
14992          * FC4 type making a check for nvme_support unnecessary.
14993          */
14994         if (phba->nvmet_support == 0) {
14995                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14996                         /* Create NVME binding with nvme_fc_transport. This
14997                          * ensures the vport is initialized.  If the localport
14998                          * create fails, it should not unload the driver to
14999                          * support field issues.
15000                          */
15001                         error = lpfc_nvme_create_localport(vport);
15002                         if (error) {
15003                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15004                                                 "6004 NVME registration "
15005                                                 "failed, error x%x\n",
15006                                                 error);
15007                         }
15008                 }
15009         }
15010
15011         /* check for firmware upgrade or downgrade */
15012         if (phba->cfg_request_firmware_upgrade)
15013                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
15014
15015         /* Check if there are static vports to be created. */
15016         lpfc_create_static_vport(phba);
15017
15018         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
15019         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
15020
15021         return 0;
15022
15023 out_free_sysfs_attr:
15024         lpfc_free_sysfs_attr(vport);
15025 out_destroy_shost:
15026         lpfc_destroy_shost(phba);
15027 out_disable_intr:
15028         lpfc_sli4_disable_intr(phba);
15029 out_unset_driver_resource:
15030         lpfc_unset_driver_resource_phase2(phba);
15031 out_unset_driver_resource_s4:
15032         lpfc_sli4_driver_resource_unset(phba);
15033 out_unset_pci_mem_s4:
15034         lpfc_sli4_pci_mem_unset(phba);
15035 out_disable_pci_dev:
15036         lpfc_disable_pci_dev(phba);
15037         if (shost)
15038                 scsi_host_put(shost);
15039 out_free_phba:
15040         lpfc_hba_free(phba);
15041         return error;
15042 }
15043
15044 /**
15045  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
15046  * @pdev: pointer to PCI device
15047  *
15048  * This routine is called from the kernel's PCI subsystem to device with
15049  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
15050  * removed from PCI bus, it performs all the necessary cleanup for the HBA
15051  * device to be removed from the PCI subsystem properly.
15052  **/
15053 static void
15054 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
15055 {
15056         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15057         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
15058         struct lpfc_vport **vports;
15059         struct lpfc_hba *phba = vport->phba;
15060         int i;
15061
15062         /* Mark the device unloading flag */
15063         spin_lock_irq(&phba->hbalock);
15064         vport->load_flag |= FC_UNLOADING;
15065         spin_unlock_irq(&phba->hbalock);
15066         if (phba->cgn_i)
15067                 lpfc_unreg_congestion_buf(phba);
15068
15069         lpfc_free_sysfs_attr(vport);
15070
15071         /* Release all the vports against this physical port */
15072         vports = lpfc_create_vport_work_array(phba);
15073         if (vports != NULL)
15074                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
15075                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
15076                                 continue;
15077                         fc_vport_terminate(vports[i]->fc_vport);
15078                 }
15079         lpfc_destroy_vport_work_array(phba, vports);
15080
15081         /* Remove FC host with the physical port */
15082         fc_remove_host(shost);
15083         scsi_remove_host(shost);
15084
15085         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
15086          * localports are destroyed after to cleanup all transport memory.
15087          */
15088         lpfc_cleanup(vport);
15089         lpfc_nvmet_destroy_targetport(phba);
15090         lpfc_nvme_destroy_localport(vport);
15091
15092         /* De-allocate multi-XRI pools */
15093         if (phba->cfg_xri_rebalancing)
15094                 lpfc_destroy_multixri_pools(phba);
15095
15096         /*
15097          * Bring down the SLI Layer. This step disables all interrupts,
15098          * clears the rings, discards all mailbox commands, and resets
15099          * the HBA FCoE function.
15100          */
15101         lpfc_debugfs_terminate(vport);
15102
15103         lpfc_stop_hba_timers(phba);
15104         spin_lock_irq(&phba->port_list_lock);
15105         list_del_init(&vport->listentry);
15106         spin_unlock_irq(&phba->port_list_lock);
15107
15108         /* Perform scsi free before driver resource_unset since scsi
15109          * buffers are released to their corresponding pools here.
15110          */
15111         lpfc_io_free(phba);
15112         lpfc_free_iocb_list(phba);
15113         lpfc_sli4_hba_unset(phba);
15114
15115         lpfc_unset_driver_resource_phase2(phba);
15116         lpfc_sli4_driver_resource_unset(phba);
15117
15118         /* Unmap adapter Control and Doorbell registers */
15119         lpfc_sli4_pci_mem_unset(phba);
15120
15121         /* Release PCI resources and disable device's PCI function */
15122         scsi_host_put(shost);
15123         lpfc_disable_pci_dev(phba);
15124
15125         /* Finally, free the driver's device data structure */
15126         lpfc_hba_free(phba);
15127
15128         return;
15129 }
15130
15131 /**
15132  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
15133  * @dev_d: pointer to device
15134  *
15135  * This routine is called from the kernel's PCI subsystem to support system
15136  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
15137  * this method, it quiesces the device by stopping the driver's worker
15138  * thread for the device, turning off device's interrupt and DMA, and bring
15139  * the device offline. Note that as the driver implements the minimum PM
15140  * requirements to a power-aware driver's PM support for suspend/resume -- all
15141  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
15142  * method call will be treated as SUSPEND and the driver will fully
15143  * reinitialize its device during resume() method call, the driver will set
15144  * device to PCI_D3hot state in PCI config space instead of setting it
15145  * according to the @msg provided by the PM.
15146  *
15147  * Return code
15148  *      0 - driver suspended the device
15149  *      Error otherwise
15150  **/
15151 static int __maybe_unused
15152 lpfc_pci_suspend_one_s4(struct device *dev_d)
15153 {
15154         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
15155         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15156
15157         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15158                         "2843 PCI device Power Management suspend.\n");
15159
15160         /* Bring down the device */
15161         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15162         lpfc_offline(phba);
15163         kthread_stop(phba->worker_thread);
15164
15165         /* Disable interrupt from device */
15166         lpfc_sli4_disable_intr(phba);
15167         lpfc_sli4_queue_destroy(phba);
15168
15169         return 0;
15170 }
15171
15172 /**
15173  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
15174  * @dev_d: pointer to device
15175  *
15176  * This routine is called from the kernel's PCI subsystem to support system
15177  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
15178  * this method, it restores the device's PCI config space state and fully
15179  * reinitializes the device and brings it online. Note that as the driver
15180  * implements the minimum PM requirements to a power-aware driver's PM for
15181  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
15182  * to the suspend() method call will be treated as SUSPEND and the driver
15183  * will fully reinitialize its device during resume() method call, the device
15184  * will be set to PCI_D0 directly in PCI config space before restoring the
15185  * state.
15186  *
15187  * Return code
15188  *      0 - driver suspended the device
15189  *      Error otherwise
15190  **/
15191 static int __maybe_unused
15192 lpfc_pci_resume_one_s4(struct device *dev_d)
15193 {
15194         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
15195         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15196         uint32_t intr_mode;
15197         int error;
15198
15199         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15200                         "0292 PCI device Power Management resume.\n");
15201
15202          /* Startup the kernel thread for this host adapter. */
15203         phba->worker_thread = kthread_run(lpfc_do_work, phba,
15204                                         "lpfc_worker_%d", phba->brd_no);
15205         if (IS_ERR(phba->worker_thread)) {
15206                 error = PTR_ERR(phba->worker_thread);
15207                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15208                                 "0293 PM resume failed to start worker "
15209                                 "thread: error=x%x.\n", error);
15210                 return error;
15211         }
15212
15213         /* Configure and enable interrupt */
15214         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15215         if (intr_mode == LPFC_INTR_ERROR) {
15216                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15217                                 "0294 PM resume Failed to enable interrupt\n");
15218                 return -EIO;
15219         } else
15220                 phba->intr_mode = intr_mode;
15221
15222         /* Restart HBA and bring it online */
15223         lpfc_sli_brdrestart(phba);
15224         lpfc_online(phba);
15225
15226         /* Log the current active interrupt mode */
15227         lpfc_log_intr_mode(phba, phba->intr_mode);
15228
15229         return 0;
15230 }
15231
15232 /**
15233  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15234  * @phba: pointer to lpfc hba data structure.
15235  *
15236  * This routine is called to prepare the SLI4 device for PCI slot recover. It
15237  * aborts all the outstanding SCSI I/Os to the pci device.
15238  **/
15239 static void
15240 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15241 {
15242         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15243                         "2828 PCI channel I/O abort preparing for recovery\n");
15244         /*
15245          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
15246          * and let the SCSI mid-layer to retry them to recover.
15247          */
15248         lpfc_sli_abort_fcp_rings(phba);
15249 }
15250
15251 /**
15252  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15253  * @phba: pointer to lpfc hba data structure.
15254  *
15255  * This routine is called to prepare the SLI4 device for PCI slot reset. It
15256  * disables the device interrupt and pci device, and aborts the internal FCP
15257  * pending I/Os.
15258  **/
15259 static void
15260 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15261 {
15262         int offline =  pci_channel_offline(phba->pcidev);
15263
15264         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15265                         "2826 PCI channel disable preparing for reset offline"
15266                         " %d\n", offline);
15267
15268         /* Block any management I/Os to the device */
15269         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15270
15271
15272         /* HBA_PCI_ERR was set in io_error_detect */
15273         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
15274         /* Flush all driver's outstanding I/Os as we are to reset */
15275         lpfc_sli_flush_io_rings(phba);
15276         lpfc_offline(phba);
15277
15278         /* stop all timers */
15279         lpfc_stop_hba_timers(phba);
15280
15281         lpfc_sli4_queue_destroy(phba);
15282         /* Disable interrupt and pci device */
15283         lpfc_sli4_disable_intr(phba);
15284         pci_disable_device(phba->pcidev);
15285 }
15286
15287 /**
15288  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15289  * @phba: pointer to lpfc hba data structure.
15290  *
15291  * This routine is called to prepare the SLI4 device for PCI slot permanently
15292  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15293  * pending I/Os.
15294  **/
15295 static void
15296 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15297 {
15298         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15299                         "2827 PCI channel permanent disable for failure\n");
15300
15301         /* Block all SCSI devices' I/Os on the host */
15302         lpfc_scsi_dev_block(phba);
15303
15304         /* stop all timers */
15305         lpfc_stop_hba_timers(phba);
15306
15307         /* Clean up all driver's outstanding I/Os */
15308         lpfc_sli_flush_io_rings(phba);
15309 }
15310
15311 /**
15312  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15313  * @pdev: pointer to PCI device.
15314  * @state: the current PCI connection state.
15315  *
15316  * This routine is called from the PCI subsystem for error handling to device
15317  * with SLI-4 interface spec. This function is called by the PCI subsystem
15318  * after a PCI bus error affecting this device has been detected. When this
15319  * function is invoked, it will need to stop all the I/Os and interrupt(s)
15320  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15321  * for the PCI subsystem to perform proper recovery as desired.
15322  *
15323  * Return codes
15324  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15325  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15326  **/
15327 static pci_ers_result_t
15328 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15329 {
15330         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15331         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15332         bool hba_pci_err;
15333
15334         switch (state) {
15335         case pci_channel_io_normal:
15336                 /* Non-fatal error, prepare for recovery */
15337                 lpfc_sli4_prep_dev_for_recover(phba);
15338                 return PCI_ERS_RESULT_CAN_RECOVER;
15339         case pci_channel_io_frozen:
15340                 hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
15341                 /* Fatal error, prepare for slot reset */
15342                 if (!hba_pci_err)
15343                         lpfc_sli4_prep_dev_for_reset(phba);
15344                 else
15345                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15346                                         "2832  Already handling PCI error "
15347                                         "state: x%x\n", state);
15348                 return PCI_ERS_RESULT_NEED_RESET;
15349         case pci_channel_io_perm_failure:
15350                 set_bit(HBA_PCI_ERR, &phba->bit_flags);
15351                 /* Permanent failure, prepare for device down */
15352                 lpfc_sli4_prep_dev_for_perm_failure(phba);
15353                 return PCI_ERS_RESULT_DISCONNECT;
15354         default:
15355                 hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
15356                 if (!hba_pci_err)
15357                         lpfc_sli4_prep_dev_for_reset(phba);
15358                 /* Unknown state, prepare and request slot reset */
15359                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15360                                 "2825 Unknown PCI error state: x%x\n", state);
15361                 lpfc_sli4_prep_dev_for_reset(phba);
15362                 return PCI_ERS_RESULT_NEED_RESET;
15363         }
15364 }
15365
15366 /**
15367  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15368  * @pdev: pointer to PCI device.
15369  *
15370  * This routine is called from the PCI subsystem for error handling to device
15371  * with SLI-4 interface spec. It is called after PCI bus has been reset to
15372  * restart the PCI card from scratch, as if from a cold-boot. During the
15373  * PCI subsystem error recovery, after the driver returns
15374  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15375  * recovery and then call this routine before calling the .resume method to
15376  * recover the device. This function will initialize the HBA device, enable
15377  * the interrupt, but it will just put the HBA to offline state without
15378  * passing any I/O traffic.
15379  *
15380  * Return codes
15381  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15382  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15383  */
15384 static pci_ers_result_t
15385 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15386 {
15387         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15388         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15389         struct lpfc_sli *psli = &phba->sli;
15390         uint32_t intr_mode;
15391         bool hba_pci_err;
15392
15393         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15394         if (pci_enable_device_mem(pdev)) {
15395                 printk(KERN_ERR "lpfc: Cannot re-enable "
15396                        "PCI device after reset.\n");
15397                 return PCI_ERS_RESULT_DISCONNECT;
15398         }
15399
15400         pci_restore_state(pdev);
15401
15402         hba_pci_err = test_and_clear_bit(HBA_PCI_ERR, &phba->bit_flags);
15403         if (!hba_pci_err)
15404                 dev_info(&pdev->dev,
15405                          "hba_pci_err was not set, recovering slot reset.\n");
15406         /*
15407          * As the new kernel behavior of pci_restore_state() API call clears
15408          * device saved_state flag, need to save the restored state again.
15409          */
15410         pci_save_state(pdev);
15411
15412         if (pdev->is_busmaster)
15413                 pci_set_master(pdev);
15414
15415         spin_lock_irq(&phba->hbalock);
15416         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15417         spin_unlock_irq(&phba->hbalock);
15418
15419         /* Init cpu_map array */
15420         lpfc_cpu_map_array_init(phba);
15421         /* Configure and enable interrupt */
15422         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15423         if (intr_mode == LPFC_INTR_ERROR) {
15424                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15425                                 "2824 Cannot re-enable interrupt after "
15426                                 "slot reset.\n");
15427                 return PCI_ERS_RESULT_DISCONNECT;
15428         } else
15429                 phba->intr_mode = intr_mode;
15430         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15431
15432         /* Log the current active interrupt mode */
15433         lpfc_log_intr_mode(phba, phba->intr_mode);
15434
15435         return PCI_ERS_RESULT_RECOVERED;
15436 }
15437
15438 /**
15439  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15440  * @pdev: pointer to PCI device
15441  *
15442  * This routine is called from the PCI subsystem for error handling to device
15443  * with SLI-4 interface spec. It is called when kernel error recovery tells
15444  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15445  * error recovery. After this call, traffic can start to flow from this device
15446  * again.
15447  **/
15448 static void
15449 lpfc_io_resume_s4(struct pci_dev *pdev)
15450 {
15451         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15452         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15453
15454         /*
15455          * In case of slot reset, as function reset is performed through
15456          * mailbox command which needs DMA to be enabled, this operation
15457          * has to be moved to the io resume phase. Taking device offline
15458          * will perform the necessary cleanup.
15459          */
15460         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15461                 /* Perform device reset */
15462                 lpfc_sli_brdrestart(phba);
15463                 /* Bring the device back online */
15464                 lpfc_online(phba);
15465         }
15466 }
15467
15468 /**
15469  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15470  * @pdev: pointer to PCI device
15471  * @pid: pointer to PCI device identifier
15472  *
15473  * This routine is to be registered to the kernel's PCI subsystem. When an
15474  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15475  * at PCI device-specific information of the device and driver to see if the
15476  * driver state that it can support this kind of device. If the match is
15477  * successful, the driver core invokes this routine. This routine dispatches
15478  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15479  * do all the initialization that it needs to do to handle the HBA device
15480  * properly.
15481  *
15482  * Return code
15483  *      0 - driver can claim the device
15484  *      negative value - driver can not claim the device
15485  **/
15486 static int
15487 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15488 {
15489         int rc;
15490         struct lpfc_sli_intf intf;
15491
15492         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15493                 return -ENODEV;
15494
15495         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15496             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15497                 rc = lpfc_pci_probe_one_s4(pdev, pid);
15498         else
15499                 rc = lpfc_pci_probe_one_s3(pdev, pid);
15500
15501         return rc;
15502 }
15503
15504 /**
15505  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15506  * @pdev: pointer to PCI device
15507  *
15508  * This routine is to be registered to the kernel's PCI subsystem. When an
15509  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15510  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15511  * remove routine, which will perform all the necessary cleanup for the
15512  * device to be removed from the PCI subsystem properly.
15513  **/
15514 static void
15515 lpfc_pci_remove_one(struct pci_dev *pdev)
15516 {
15517         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15518         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15519
15520         switch (phba->pci_dev_grp) {
15521         case LPFC_PCI_DEV_LP:
15522                 lpfc_pci_remove_one_s3(pdev);
15523                 break;
15524         case LPFC_PCI_DEV_OC:
15525                 lpfc_pci_remove_one_s4(pdev);
15526                 break;
15527         default:
15528                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15529                                 "1424 Invalid PCI device group: 0x%x\n",
15530                                 phba->pci_dev_grp);
15531                 break;
15532         }
15533         return;
15534 }
15535
15536 /**
15537  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15538  * @dev: pointer to device
15539  *
15540  * This routine is to be registered to the kernel's PCI subsystem to support
15541  * system Power Management (PM). When PM invokes this method, it dispatches
15542  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15543  * suspend the device.
15544  *
15545  * Return code
15546  *      0 - driver suspended the device
15547  *      Error otherwise
15548  **/
15549 static int __maybe_unused
15550 lpfc_pci_suspend_one(struct device *dev)
15551 {
15552         struct Scsi_Host *shost = dev_get_drvdata(dev);
15553         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15554         int rc = -ENODEV;
15555
15556         switch (phba->pci_dev_grp) {
15557         case LPFC_PCI_DEV_LP:
15558                 rc = lpfc_pci_suspend_one_s3(dev);
15559                 break;
15560         case LPFC_PCI_DEV_OC:
15561                 rc = lpfc_pci_suspend_one_s4(dev);
15562                 break;
15563         default:
15564                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15565                                 "1425 Invalid PCI device group: 0x%x\n",
15566                                 phba->pci_dev_grp);
15567                 break;
15568         }
15569         return rc;
15570 }
15571
15572 /**
15573  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15574  * @dev: pointer to device
15575  *
15576  * This routine is to be registered to the kernel's PCI subsystem to support
15577  * system Power Management (PM). When PM invokes this method, it dispatches
15578  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15579  * resume the device.
15580  *
15581  * Return code
15582  *      0 - driver suspended the device
15583  *      Error otherwise
15584  **/
15585 static int __maybe_unused
15586 lpfc_pci_resume_one(struct device *dev)
15587 {
15588         struct Scsi_Host *shost = dev_get_drvdata(dev);
15589         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15590         int rc = -ENODEV;
15591
15592         switch (phba->pci_dev_grp) {
15593         case LPFC_PCI_DEV_LP:
15594                 rc = lpfc_pci_resume_one_s3(dev);
15595                 break;
15596         case LPFC_PCI_DEV_OC:
15597                 rc = lpfc_pci_resume_one_s4(dev);
15598                 break;
15599         default:
15600                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15601                                 "1426 Invalid PCI device group: 0x%x\n",
15602                                 phba->pci_dev_grp);
15603                 break;
15604         }
15605         return rc;
15606 }
15607
15608 /**
15609  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15610  * @pdev: pointer to PCI device.
15611  * @state: the current PCI connection state.
15612  *
15613  * This routine is registered to the PCI subsystem for error handling. This
15614  * function is called by the PCI subsystem after a PCI bus error affecting
15615  * this device has been detected. When this routine is invoked, it dispatches
15616  * the action to the proper SLI-3 or SLI-4 device error detected handling
15617  * routine, which will perform the proper error detected operation.
15618  *
15619  * Return codes
15620  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15621  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15622  **/
15623 static pci_ers_result_t
15624 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15625 {
15626         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15627         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15628         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15629
15630         if (phba->link_state == LPFC_HBA_ERROR &&
15631             phba->hba_flag & HBA_IOQ_FLUSH)
15632                 return PCI_ERS_RESULT_NEED_RESET;
15633
15634         switch (phba->pci_dev_grp) {
15635         case LPFC_PCI_DEV_LP:
15636                 rc = lpfc_io_error_detected_s3(pdev, state);
15637                 break;
15638         case LPFC_PCI_DEV_OC:
15639                 rc = lpfc_io_error_detected_s4(pdev, state);
15640                 break;
15641         default:
15642                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15643                                 "1427 Invalid PCI device group: 0x%x\n",
15644                                 phba->pci_dev_grp);
15645                 break;
15646         }
15647         return rc;
15648 }
15649
15650 /**
15651  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15652  * @pdev: pointer to PCI device.
15653  *
15654  * This routine is registered to the PCI subsystem for error handling. This
15655  * function is called after PCI bus has been reset to restart the PCI card
15656  * from scratch, as if from a cold-boot. When this routine is invoked, it
15657  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15658  * routine, which will perform the proper device reset.
15659  *
15660  * Return codes
15661  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15662  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15663  **/
15664 static pci_ers_result_t
15665 lpfc_io_slot_reset(struct pci_dev *pdev)
15666 {
15667         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15668         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15669         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15670
15671         switch (phba->pci_dev_grp) {
15672         case LPFC_PCI_DEV_LP:
15673                 rc = lpfc_io_slot_reset_s3(pdev);
15674                 break;
15675         case LPFC_PCI_DEV_OC:
15676                 rc = lpfc_io_slot_reset_s4(pdev);
15677                 break;
15678         default:
15679                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15680                                 "1428 Invalid PCI device group: 0x%x\n",
15681                                 phba->pci_dev_grp);
15682                 break;
15683         }
15684         return rc;
15685 }
15686
15687 /**
15688  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15689  * @pdev: pointer to PCI device
15690  *
15691  * This routine is registered to the PCI subsystem for error handling. It
15692  * is called when kernel error recovery tells the lpfc driver that it is
15693  * OK to resume normal PCI operation after PCI bus error recovery. When
15694  * this routine is invoked, it dispatches the action to the proper SLI-3
15695  * or SLI-4 device io_resume routine, which will resume the device operation.
15696  **/
15697 static void
15698 lpfc_io_resume(struct pci_dev *pdev)
15699 {
15700         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15701         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15702
15703         switch (phba->pci_dev_grp) {
15704         case LPFC_PCI_DEV_LP:
15705                 lpfc_io_resume_s3(pdev);
15706                 break;
15707         case LPFC_PCI_DEV_OC:
15708                 lpfc_io_resume_s4(pdev);
15709                 break;
15710         default:
15711                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15712                                 "1429 Invalid PCI device group: 0x%x\n",
15713                                 phba->pci_dev_grp);
15714                 break;
15715         }
15716         return;
15717 }
15718
15719 /**
15720  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15721  * @phba: pointer to lpfc hba data structure.
15722  *
15723  * This routine checks to see if OAS is supported for this adapter. If
15724  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
15725  * the enable oas flag is cleared and the pool created for OAS device data
15726  * is destroyed.
15727  *
15728  **/
15729 static void
15730 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15731 {
15732
15733         if (!phba->cfg_EnableXLane)
15734                 return;
15735
15736         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15737                 phba->cfg_fof = 1;
15738         } else {
15739                 phba->cfg_fof = 0;
15740                 mempool_destroy(phba->device_data_mem_pool);
15741                 phba->device_data_mem_pool = NULL;
15742         }
15743
15744         return;
15745 }
15746
15747 /**
15748  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15749  * @phba: pointer to lpfc hba data structure.
15750  *
15751  * This routine checks to see if RAS is supported by the adapter. Check the
15752  * function through which RAS support enablement is to be done.
15753  **/
15754 void
15755 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15756 {
15757         /* if ASIC_GEN_NUM >= 0xC) */
15758         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15759                     LPFC_SLI_INTF_IF_TYPE_6) ||
15760             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15761                     LPFC_SLI_INTF_FAMILY_G6)) {
15762                 phba->ras_fwlog.ras_hwsupport = true;
15763                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15764                     phba->cfg_ras_fwlog_buffsize)
15765                         phba->ras_fwlog.ras_enabled = true;
15766                 else
15767                         phba->ras_fwlog.ras_enabled = false;
15768         } else {
15769                 phba->ras_fwlog.ras_hwsupport = false;
15770         }
15771 }
15772
15773
15774 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15775
15776 static const struct pci_error_handlers lpfc_err_handler = {
15777         .error_detected = lpfc_io_error_detected,
15778         .slot_reset = lpfc_io_slot_reset,
15779         .resume = lpfc_io_resume,
15780 };
15781
15782 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15783                          lpfc_pci_suspend_one,
15784                          lpfc_pci_resume_one);
15785
15786 static struct pci_driver lpfc_driver = {
15787         .name           = LPFC_DRIVER_NAME,
15788         .id_table       = lpfc_id_table,
15789         .probe          = lpfc_pci_probe_one,
15790         .remove         = lpfc_pci_remove_one,
15791         .shutdown       = lpfc_pci_remove_one,
15792         .driver.pm      = &lpfc_pci_pm_ops_one,
15793         .err_handler    = &lpfc_err_handler,
15794 };
15795
15796 static const struct file_operations lpfc_mgmt_fop = {
15797         .owner = THIS_MODULE,
15798 };
15799
15800 static struct miscdevice lpfc_mgmt_dev = {
15801         .minor = MISC_DYNAMIC_MINOR,
15802         .name = "lpfcmgmt",
15803         .fops = &lpfc_mgmt_fop,
15804 };
15805
15806 /**
15807  * lpfc_init - lpfc module initialization routine
15808  *
15809  * This routine is to be invoked when the lpfc module is loaded into the
15810  * kernel. The special kernel macro module_init() is used to indicate the
15811  * role of this routine to the kernel as lpfc module entry point.
15812  *
15813  * Return codes
15814  *   0 - successful
15815  *   -ENOMEM - FC attach transport failed
15816  *   all others - failed
15817  */
15818 static int __init
15819 lpfc_init(void)
15820 {
15821         int error = 0;
15822
15823         pr_info(LPFC_MODULE_DESC "\n");
15824         pr_info(LPFC_COPYRIGHT "\n");
15825
15826         error = misc_register(&lpfc_mgmt_dev);
15827         if (error)
15828                 printk(KERN_ERR "Could not register lpfcmgmt device, "
15829                         "misc_register returned with status %d", error);
15830
15831         error = -ENOMEM;
15832         lpfc_transport_functions.vport_create = lpfc_vport_create;
15833         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15834         lpfc_transport_template =
15835                                 fc_attach_transport(&lpfc_transport_functions);
15836         if (lpfc_transport_template == NULL)
15837                 goto unregister;
15838         lpfc_vport_transport_template =
15839                 fc_attach_transport(&lpfc_vport_transport_functions);
15840         if (lpfc_vport_transport_template == NULL) {
15841                 fc_release_transport(lpfc_transport_template);
15842                 goto unregister;
15843         }
15844         lpfc_wqe_cmd_template();
15845         lpfc_nvmet_cmd_template();
15846
15847         /* Initialize in case vector mapping is needed */
15848         lpfc_present_cpu = num_present_cpus();
15849
15850         lpfc_pldv_detect = false;
15851
15852         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15853                                         "lpfc/sli4:online",
15854                                         lpfc_cpu_online, lpfc_cpu_offline);
15855         if (error < 0)
15856                 goto cpuhp_failure;
15857         lpfc_cpuhp_state = error;
15858
15859         error = pci_register_driver(&lpfc_driver);
15860         if (error)
15861                 goto unwind;
15862
15863         return error;
15864
15865 unwind:
15866         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15867 cpuhp_failure:
15868         fc_release_transport(lpfc_transport_template);
15869         fc_release_transport(lpfc_vport_transport_template);
15870 unregister:
15871         misc_deregister(&lpfc_mgmt_dev);
15872
15873         return error;
15874 }
15875
15876 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15877 {
15878         unsigned int start_idx;
15879         unsigned int dbg_cnt;
15880         unsigned int temp_idx;
15881         int i;
15882         int j = 0;
15883         unsigned long rem_nsec;
15884
15885         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15886                 return;
15887
15888         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15889         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15890         if (!dbg_cnt)
15891                 goto out;
15892         temp_idx = start_idx;
15893         if (dbg_cnt >= DBG_LOG_SZ) {
15894                 dbg_cnt = DBG_LOG_SZ;
15895                 temp_idx -= 1;
15896         } else {
15897                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15898                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15899                 } else {
15900                         if (start_idx < dbg_cnt)
15901                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15902                         else
15903                                 start_idx -= dbg_cnt;
15904                 }
15905         }
15906         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15907                  start_idx, temp_idx, dbg_cnt);
15908
15909         for (i = 0; i < dbg_cnt; i++) {
15910                 if ((start_idx + i) < DBG_LOG_SZ)
15911                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
15912                 else
15913                         temp_idx = j++;
15914                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15915                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15916                          temp_idx,
15917                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15918                          rem_nsec / 1000,
15919                          phba->dbg_log[temp_idx].log);
15920         }
15921 out:
15922         atomic_set(&phba->dbg_log_cnt, 0);
15923         atomic_set(&phba->dbg_log_dmping, 0);
15924 }
15925
15926 __printf(2, 3)
15927 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15928 {
15929         unsigned int idx;
15930         va_list args;
15931         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15932         struct va_format vaf;
15933
15934
15935         va_start(args, fmt);
15936         if (unlikely(dbg_dmping)) {
15937                 vaf.fmt = fmt;
15938                 vaf.va = &args;
15939                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15940                 va_end(args);
15941                 return;
15942         }
15943         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15944                 DBG_LOG_SZ;
15945
15946         atomic_inc(&phba->dbg_log_cnt);
15947
15948         vscnprintf(phba->dbg_log[idx].log,
15949                    sizeof(phba->dbg_log[idx].log), fmt, args);
15950         va_end(args);
15951
15952         phba->dbg_log[idx].t_ns = local_clock();
15953 }
15954
15955 /**
15956  * lpfc_exit - lpfc module removal routine
15957  *
15958  * This routine is invoked when the lpfc module is removed from the kernel.
15959  * The special kernel macro module_exit() is used to indicate the role of
15960  * this routine to the kernel as lpfc module exit point.
15961  */
15962 static void __exit
15963 lpfc_exit(void)
15964 {
15965         misc_deregister(&lpfc_mgmt_dev);
15966         pci_unregister_driver(&lpfc_driver);
15967         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15968         fc_release_transport(lpfc_transport_template);
15969         fc_release_transport(lpfc_vport_transport_template);
15970         idr_destroy(&lpfc_hba_index);
15971 }
15972
15973 module_init(lpfc_init);
15974 module_exit(lpfc_exit);
15975 MODULE_LICENSE("GPL");
15976 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15977 MODULE_AUTHOR("Broadcom");
15978 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);