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) 2017-2019 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/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43
  44 #include <scsi/scsi.h>
  45 #include <scsi/scsi_device.h>
  46 #include <scsi/scsi_host.h>
  47 #include <scsi/scsi_transport_fc.h>
  48 #include <scsi/scsi_tcq.h>
  49 #include <scsi/fc/fc_fs.h>
  50
  51 #include <linux/nvme-fc-driver.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_nvmet.h"
  63 #include "lpfc_logmsg.h"
  64 #include "lpfc_crtn.h"
  65 #include "lpfc_vport.h"
  66 #include "lpfc_version.h"
  67 #include "lpfc_ids.h"
  68
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71
  72 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  73 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  74 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  75 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  76 static int lpfc_setup_endian_order(struct lpfc_hba *);
  77 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  78 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  79 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  80 static void lpfc_init_sgl_list(struct lpfc_hba *);
  81 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  82 static void lpfc_free_active_sgl(struct lpfc_hba *);
  83 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  84 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  85 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  86 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  87 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  88 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  89 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  90 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  91 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  92 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  93
  94 static struct scsi_transport_template *lpfc_transport_template = NULL;
  95 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  96 static DEFINE_IDR(lpfc_hba_index);
  97 #define LPFC_NVMET_BUF_POST 254
  98
  99 /**
 100  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 101  * @phba: pointer to lpfc hba data structure.
 102  *
 103  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 104  * mailbox command. It retrieves the revision information from the HBA and
 105  * collects the Vital Product Data (VPD) about the HBA for preparing the
 106  * configuration of the HBA.
 107  *
 108  * Return codes:
 109  *   0 - success.
 110  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 111  *   Any other value - indicates an error.
 112  **/
 113 int
 114 lpfc_config_port_prep(struct lpfc_hba *phba)
 115 {
 116         lpfc_vpd_t *vp = &phba->vpd;
 117         int i = 0, rc;
 118         LPFC_MBOXQ_t *pmb;
 119         MAILBOX_t *mb;
 120         char *lpfc_vpd_data = NULL;
 121         uint16_t offset = 0;
 122         static char licensed[56] =
 123                     "key unlock for use with gnu public licensed code only\0";
 124         static int init_key = 1;
 125
 126         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 127         if (!pmb) {
 128                 phba->link_state = LPFC_HBA_ERROR;
 129                 return -ENOMEM;
 130         }
 131
 132         mb = &pmb->u.mb;
 133         phba->link_state = LPFC_INIT_MBX_CMDS;
 134
 135         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 136                 if (init_key) {
 137                         uint32_t *ptext = (uint32_t *) licensed;
 138
 139                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 140                                 *ptext = cpu_to_be32(*ptext);
 141                         init_key = 0;
 142                 }
 143
 144                 lpfc_read_nv(phba, pmb);
 145                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 146                         sizeof (mb->un.varRDnvp.rsvd3));
 147                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 148                          sizeof (licensed));
 149
 150                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 151
 152                 if (rc != MBX_SUCCESS) {
 153                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 154                                         "0324 Config Port initialization "
 155                                         "error, mbxCmd x%x READ_NVPARM, "
 156                                         "mbxStatus x%x\n",
 157                                         mb->mbxCommand, mb->mbxStatus);
 158                         mempool_free(pmb, phba->mbox_mem_pool);
 159                         return -ERESTART;
 160                 }
 161                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 162                        sizeof(phba->wwnn));
 163                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 164                        sizeof(phba->wwpn));
 165         }
 166
 167         /*
 168          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 169          * which was already set in lpfc_get_cfgparam()
 170          */
 171         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 172
 173         /* Setup and issue mailbox READ REV command */
 174         lpfc_read_rev(phba, pmb);
 175         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 176         if (rc != MBX_SUCCESS) {
 177                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 178                                 "0439 Adapter failed to init, mbxCmd x%x "
 179                                 "READ_REV, mbxStatus x%x\n",
 180                                 mb->mbxCommand, mb->mbxStatus);
 181                 mempool_free( pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185
 186         /*
 187          * The value of rr must be 1 since the driver set the cv field to 1.
 188          * This setting requires the FW to set all revision fields.
 189          */
 190         if (mb->un.varRdRev.rr == 0) {
 191                 vp->rev.rBit = 0;
 192                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 193                                 "0440 Adapter failed to init, READ_REV has "
 194                                 "missing revision information.\n");
 195                 mempool_free(pmb, phba->mbox_mem_pool);
 196                 return -ERESTART;
 197         }
 198
 199         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -EINVAL;
 202         }
 203
 204         /* Save information as VPD data */
 205         vp->rev.rBit = 1;
 206         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 207         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 208         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 209         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 210         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 211         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 212         vp->rev.smRev = mb->un.varRdRev.smRev;
 213         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 214         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 215         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 216         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 217         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 218         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 219         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 220         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 221
 222         /* If the sli feature level is less then 9, we must
 223          * tear down all RPIs and VPIs on link down if NPIV
 224          * is enabled.
 225          */
 226         if (vp->rev.feaLevelHigh < 9)
 227                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 228
 229         if (lpfc_is_LC_HBA(phba->pcidev->device))
 230                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 231                                                 sizeof (phba->RandomData));
 232
 233         /* Get adapter VPD information */
 234         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 235         if (!lpfc_vpd_data)
 236                 goto out_free_mbox;
 237         do {
 238                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 239                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 240
 241                 if (rc != MBX_SUCCESS) {
 242                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 243                                         "0441 VPD not present on adapter, "
 244                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 245                                         mb->mbxCommand, mb->mbxStatus);
 246                         mb->un.varDmp.word_cnt = 0;
 247                 }
 248                 /* dump mem may return a zero when finished or we got a
 249                  * mailbox error, either way we are done.
 250                  */
 251                 if (mb->un.varDmp.word_cnt == 0)
 252                         break;
 253                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 254                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 255                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 256                                       lpfc_vpd_data + offset,
 257                                       mb->un.varDmp.word_cnt);
 258                 offset += mb->un.varDmp.word_cnt;
 259         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 260         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 261
 262         kfree(lpfc_vpd_data);
 263 out_free_mbox:
 264         mempool_free(pmb, phba->mbox_mem_pool);
 265         return 0;
 266 }
 267
 268 /**
 269  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 270  * @phba: pointer to lpfc hba data structure.
 271  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 272  *
 273  * This is the completion handler for driver's configuring asynchronous event
 274  * mailbox command to the device. If the mailbox command returns successfully,
 275  * it will set internal async event support flag to 1; otherwise, it will
 276  * set internal async event support flag to 0.
 277  **/
 278 static void
 279 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 280 {
 281         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 282                 phba->temp_sensor_support = 1;
 283         else
 284                 phba->temp_sensor_support = 0;
 285         mempool_free(pmboxq, phba->mbox_mem_pool);
 286         return;
 287 }
 288
 289 /**
 290  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 291  * @phba: pointer to lpfc hba data structure.
 292  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 293  *
 294  * This is the completion handler for dump mailbox command for getting
 295  * wake up parameters. When this command complete, the response contain
 296  * Option rom version of the HBA. This function translate the version number
 297  * into a human readable string and store it in OptionROMVersion.
 298  **/
 299 static void
 300 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 301 {
 302         struct prog_id *prg;
 303         uint32_t prog_id_word;
 304         char dist = ' ';
 305         /* character array used for decoding dist type. */
 306         char dist_char[] = "nabx";
 307
 308         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 309                 mempool_free(pmboxq, phba->mbox_mem_pool);
 310                 return;
 311         }
 312
 313         prg = (struct prog_id *) &prog_id_word;
 314
 315         /* word 7 contain option rom version */
 316         prog_id_word = pmboxq->u.mb.un.varWords[7];
 317
 318         /* Decode the Option rom version word to a readable string */
 319         if (prg->dist < 4)
 320                 dist = dist_char[prg->dist];
 321
 322         if ((prg->dist == 3) && (prg->num == 0))
 323                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 324                         prg->ver, prg->rev, prg->lev);
 325         else
 326                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 327                         prg->ver, prg->rev, prg->lev,
 328                         dist, prg->num);
 329         mempool_free(pmboxq, phba->mbox_mem_pool);
 330         return;
 331 }
 332
 333 /**
 334  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 335  *      cfg_soft_wwnn, cfg_soft_wwpn
 336  * @vport: pointer to lpfc vport data structure.
 337  *
 338  *
 339  * Return codes
 340  *   None.
 341  **/
 342 void
 343 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 344 {
 345         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 346         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 347
 348         /* If the soft name exists then update it using the service params */
 349         if (vport->phba->cfg_soft_wwnn)
 350                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 351                            vport->fc_sparam.nodeName.u.wwn);
 352         if (vport->phba->cfg_soft_wwpn)
 353                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 354                            vport->fc_sparam.portName.u.wwn);
 355
 356         /*
 357          * If the name is empty or there exists a soft name
 358          * then copy the service params name, otherwise use the fc name
 359          */
 360         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 361                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 362                         sizeof(struct lpfc_name));
 363         else
 364                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 365                         sizeof(struct lpfc_name));
 366
 367         /*
 368          * If the port name has changed, then set the Param changes flag
 369          * to unreg the login
 370          */
 371         if (vport->fc_portname.u.wwn[0] != 0 &&
 372                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 373                         sizeof(struct lpfc_name)))
 374                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 375
 376         if (vport->fc_portname.u.wwn[0] == 0 ||
 377             vport->phba->cfg_soft_wwpn ||
 378             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 379             vport->vport_flag & FAWWPN_SET) {
 380                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 381                         sizeof(struct lpfc_name));
 382                 vport->vport_flag &= ~FAWWPN_SET;
 383                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 384                         vport->vport_flag |= FAWWPN_SET;
 385         }
 386         else
 387                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 388                         sizeof(struct lpfc_name));
 389 }
 390
 391 /**
 392  * lpfc_config_port_post - Perform lpfc initialization after config port
 393  * @phba: pointer to lpfc hba data structure.
 394  *
 395  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 396  * command call. It performs all internal resource and state setups on the
 397  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 398  * ELS ring timers, etc.
 399  *
 400  * Return codes
 401  *   0 - success.
 402  *   Any other value - error.
 403  **/
 404 int
 405 lpfc_config_port_post(struct lpfc_hba *phba)
 406 {
 407         struct lpfc_vport *vport = phba->pport;
 408         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 409         LPFC_MBOXQ_t *pmb;
 410         MAILBOX_t *mb;
 411         struct lpfc_dmabuf *mp;
 412         struct lpfc_sli *psli = &phba->sli;
 413         uint32_t status, timeout;
 414         int i, j;
 415         int rc;
 416
 417         spin_lock_irq(&phba->hbalock);
 418         /*
 419          * If the Config port completed correctly the HBA is not
 420          * over heated any more.
 421          */
 422         if (phba->over_temp_state == HBA_OVER_TEMP)
 423                 phba->over_temp_state = HBA_NORMAL_TEMP;
 424         spin_unlock_irq(&phba->hbalock);
 425
 426         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 427         if (!pmb) {
 428                 phba->link_state = LPFC_HBA_ERROR;
 429                 return -ENOMEM;
 430         }
 431         mb = &pmb->u.mb;
 432
 433         /* Get login parameters for NID.  */
 434         rc = lpfc_read_sparam(phba, pmb, 0);
 435         if (rc) {
 436                 mempool_free(pmb, phba->mbox_mem_pool);
 437                 return -ENOMEM;
 438         }
 439
 440         pmb->vport = vport;
 441         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 443                                 "0448 Adapter failed init, mbxCmd x%x "
 444                                 "READ_SPARM mbxStatus x%x\n",
 445                                 mb->mbxCommand, mb->mbxStatus);
 446                 phba->link_state = LPFC_HBA_ERROR;
 447                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 448                 mempool_free(pmb, phba->mbox_mem_pool);
 449                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 450                 kfree(mp);
 451                 return -EIO;
 452         }
 453
 454         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 455
 456         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 457         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 458         kfree(mp);
 459         pmb->ctx_buf = NULL;
 460         lpfc_update_vport_wwn(vport);
 461
 462         /* Update the fc_host data structures with new wwn. */
 463         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 464         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 465         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 466
 467         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 468         /* This should be consolidated into parse_vpd ? - mr */
 469         if (phba->SerialNumber[0] == 0) {
 470                 uint8_t *outptr;
 471
 472                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 473                 for (i = 0; i < 12; i++) {
 474                         status = *outptr++;
 475                         j = ((status & 0xf0) >> 4);
 476                         if (j <= 9)
 477                                 phba->SerialNumber[i] =
 478                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 479                         else
 480                                 phba->SerialNumber[i] =
 481                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 482                         i++;
 483                         j = (status & 0xf);
 484                         if (j <= 9)
 485                                 phba->SerialNumber[i] =
 486                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 487                         else
 488                                 phba->SerialNumber[i] =
 489                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 490                 }
 491         }
 492
 493         lpfc_read_config(phba, pmb);
 494         pmb->vport = vport;
 495         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 496                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 497                                 "0453 Adapter failed to init, mbxCmd x%x "
 498                                 "READ_CONFIG, mbxStatus x%x\n",
 499                                 mb->mbxCommand, mb->mbxStatus);
 500                 phba->link_state = LPFC_HBA_ERROR;
 501                 mempool_free( pmb, phba->mbox_mem_pool);
 502                 return -EIO;
 503         }
 504
 505         /* Check if the port is disabled */
 506         lpfc_sli_read_link_ste(phba);
 507
 508         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 509         i = (mb->un.varRdConfig.max_xri + 1);
 510         if (phba->cfg_hba_queue_depth > i) {
 511                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 512                                 "3359 HBA queue depth changed from %d to %d\n",
 513                                 phba->cfg_hba_queue_depth, i);
 514                 phba->cfg_hba_queue_depth = i;
 515         }
 516
 517         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 518         i = (mb->un.varRdConfig.max_xri >> 3);
 519         if (phba->pport->cfg_lun_queue_depth > i) {
 520                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 521                                 "3360 LUN queue depth changed from %d to %d\n",
 522                                 phba->pport->cfg_lun_queue_depth, i);
 523                 phba->pport->cfg_lun_queue_depth = i;
 524         }
 525
 526         phba->lmt = mb->un.varRdConfig.lmt;
 527
 528         /* Get the default values for Model Name and Description */
 529         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 530
 531         phba->link_state = LPFC_LINK_DOWN;
 532
 533         /* Only process IOCBs on ELS ring till hba_state is READY */
 534         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 537                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 538
 539         /* Post receive buffers for desired rings */
 540         if (phba->sli_rev != 3)
 541                 lpfc_post_rcv_buf(phba);
 542
 543         /*
 544          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 545          */
 546         if (phba->intr_type == MSIX) {
 547                 rc = lpfc_config_msi(phba, pmb);
 548                 if (rc) {
 549                         mempool_free(pmb, phba->mbox_mem_pool);
 550                         return -EIO;
 551                 }
 552                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 553                 if (rc != MBX_SUCCESS) {
 554                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 555                                         "0352 Config MSI mailbox command "
 556                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 557                                         pmb->u.mb.mbxCommand,
 558                                         pmb->u.mb.mbxStatus);
 559                         mempool_free(pmb, phba->mbox_mem_pool);
 560                         return -EIO;
 561                 }
 562         }
 563
 564         spin_lock_irq(&phba->hbalock);
 565         /* Initialize ERATT handling flag */
 566         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 567
 568         /* Enable appropriate host interrupts */
 569         if (lpfc_readl(phba->HCregaddr, &status)) {
 570                 spin_unlock_irq(&phba->hbalock);
 571                 return -EIO;
 572         }
 573         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 574         if (psli->num_rings > 0)
 575                 status |= HC_R0INT_ENA;
 576         if (psli->num_rings > 1)
 577                 status |= HC_R1INT_ENA;
 578         if (psli->num_rings > 2)
 579                 status |= HC_R2INT_ENA;
 580         if (psli->num_rings > 3)
 581                 status |= HC_R3INT_ENA;
 582
 583         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 584             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 585                 status &= ~(HC_R0INT_ENA);
 586
 587         writel(status, phba->HCregaddr);
 588         readl(phba->HCregaddr); /* flush */
 589         spin_unlock_irq(&phba->hbalock);
 590
 591         /* Set up ring-0 (ELS) timer */
 592         timeout = phba->fc_ratov * 2;
 593         mod_timer(&vport->els_tmofunc,
 594                   jiffies + msecs_to_jiffies(1000 * timeout));
 595         /* Set up heart beat (HB) timer */
 596         mod_timer(&phba->hb_tmofunc,
 597                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 598         phba->hb_outstanding = 0;
 599         phba->last_completion_time = jiffies;
 600         /* Set up error attention (ERATT) polling timer */
 601         mod_timer(&phba->eratt_poll,
 602                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 603
 604         if (phba->hba_flag & LINK_DISABLED) {
 605                 lpfc_printf_log(phba,
 606                         KERN_ERR, LOG_INIT,
 607                         "2598 Adapter Link is disabled.\n");
 608                 lpfc_down_link(phba, pmb);
 609                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 610                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 611                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 612                         lpfc_printf_log(phba,
 613                         KERN_ERR, LOG_INIT,
 614                         "2599 Adapter failed to issue DOWN_LINK"
 615                         " mbox command rc 0x%x\n", rc);
 616
 617                         mempool_free(pmb, phba->mbox_mem_pool);
 618                         return -EIO;
 619                 }
 620         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 621                 mempool_free(pmb, phba->mbox_mem_pool);
 622                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 623                 if (rc)
 624                         return rc;
 625         }
 626         /* MBOX buffer will be freed in mbox compl */
 627         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 628         if (!pmb) {
 629                 phba->link_state = LPFC_HBA_ERROR;
 630                 return -ENOMEM;
 631         }
 632
 633         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 634         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 635         pmb->vport = phba->pport;
 636         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 637
 638         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 639                 lpfc_printf_log(phba,
 640                                 KERN_ERR,
 641                                 LOG_INIT,
 642                                 "0456 Adapter failed to issue "
 643                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 644                                 rc);
 645                 mempool_free(pmb, phba->mbox_mem_pool);
 646         }
 647
 648         /* Get Option rom version */
 649         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 650         if (!pmb) {
 651                 phba->link_state = LPFC_HBA_ERROR;
 652                 return -ENOMEM;
 653         }
 654
 655         lpfc_dump_wakeup_param(phba, pmb);
 656         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 657         pmb->vport = phba->pport;
 658         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 659
 660         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 661                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "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_hba_init_link - Initialize the FC link
 671  * @phba: pointer to lpfc hba data structure.
 672  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 673  *
 674  * This routine will issue the INIT_LINK mailbox command call.
 675  * It is available to other drivers through the lpfc_hba data
 676  * structure for use as a delayed link up mechanism with the
 677  * module parameter lpfc_suppress_link_up.
 678  *
 679  * Return code
 680  *              0 - success
 681  *              Any other value - error
 682  **/
 683 static int
 684 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 685 {
 686         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 687 }
 688
 689 /**
 690  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 691  * @phba: pointer to lpfc hba data structure.
 692  * @fc_topology: desired fc topology.
 693  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 694  *
 695  * This routine will issue the INIT_LINK mailbox command call.
 696  * It is available to other drivers through the lpfc_hba data
 697  * structure for use as a delayed link up mechanism with the
 698  * module parameter lpfc_suppress_link_up.
 699  *
 700  * Return code
 701  *              0 - success
 702  *              Any other value - error
 703  **/
 704 int
 705 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 706                                uint32_t flag)
 707 {
 708         struct lpfc_vport *vport = phba->pport;
 709         LPFC_MBOXQ_t *pmb;
 710         MAILBOX_t *mb;
 711         int rc;
 712
 713         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 714         if (!pmb) {
 715                 phba->link_state = LPFC_HBA_ERROR;
 716                 return -ENOMEM;
 717         }
 718         mb = &pmb->u.mb;
 719         pmb->vport = vport;
 720
 721         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 722             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 723              !(phba->lmt & LMT_1Gb)) ||
 724             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 725              !(phba->lmt & LMT_2Gb)) ||
 726             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 727              !(phba->lmt & LMT_4Gb)) ||
 728             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 729              !(phba->lmt & LMT_8Gb)) ||
 730             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 731              !(phba->lmt & LMT_10Gb)) ||
 732             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 733              !(phba->lmt & LMT_16Gb)) ||
 734             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 735              !(phba->lmt & LMT_32Gb)) ||
 736             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 737              !(phba->lmt & LMT_64Gb))) {
 738                 /* Reset link speed to auto */
 739                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 740                         "1302 Invalid speed for this board:%d "
 741                         "Reset link speed to auto.\n",
 742                         phba->cfg_link_speed);
 743                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 744         }
 745         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 746         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 747         if (phba->sli_rev < LPFC_SLI_REV4)
 748                 lpfc_set_loopback_flag(phba);
 749         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 750         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 751                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 752                         "0498 Adapter failed to init, mbxCmd x%x "
 753                         "INIT_LINK, mbxStatus x%x\n",
 754                         mb->mbxCommand, mb->mbxStatus);
 755                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 756                         /* Clear all interrupt enable conditions */
 757                         writel(0, phba->HCregaddr);
 758                         readl(phba->HCregaddr); /* flush */
 759                         /* Clear all pending interrupts */
 760                         writel(0xffffffff, phba->HAregaddr);
 761                         readl(phba->HAregaddr); /* flush */
 762                 }
 763                 phba->link_state = LPFC_HBA_ERROR;
 764                 if (rc != MBX_BUSY || flag == MBX_POLL)
 765                         mempool_free(pmb, phba->mbox_mem_pool);
 766                 return -EIO;
 767         }
 768         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 769         if (flag == MBX_POLL)
 770                 mempool_free(pmb, phba->mbox_mem_pool);
 771
 772         return 0;
 773 }
 774
 775 /**
 776  * lpfc_hba_down_link - this routine downs the FC link
 777  * @phba: pointer to lpfc hba data structure.
 778  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 779  *
 780  * This routine will issue the DOWN_LINK mailbox command call.
 781  * It is available to other drivers through the lpfc_hba data
 782  * structure for use to stop the link.
 783  *
 784  * Return code
 785  *              0 - success
 786  *              Any other value - error
 787  **/
 788 static int
 789 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 790 {
 791         LPFC_MBOXQ_t *pmb;
 792         int rc;
 793
 794         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 795         if (!pmb) {
 796                 phba->link_state = LPFC_HBA_ERROR;
 797                 return -ENOMEM;
 798         }
 799
 800         lpfc_printf_log(phba,
 801                 KERN_ERR, LOG_INIT,
 802                 "0491 Adapter Link is disabled.\n");
 803         lpfc_down_link(phba, pmb);
 804         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 805         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 806         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 807                 lpfc_printf_log(phba,
 808                 KERN_ERR, LOG_INIT,
 809                 "2522 Adapter failed to issue DOWN_LINK"
 810                 " mbox command rc 0x%x\n", rc);
 811
 812                 mempool_free(pmb, phba->mbox_mem_pool);
 813                 return -EIO;
 814         }
 815         if (flag == MBX_POLL)
 816                 mempool_free(pmb, phba->mbox_mem_pool);
 817
 818         return 0;
 819 }
 820
 821 /**
 822  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 823  * @phba: pointer to lpfc HBA data structure.
 824  *
 825  * This routine will do LPFC uninitialization before the HBA is reset when
 826  * bringing down the SLI Layer.
 827  *
 828  * Return codes
 829  *   0 - success.
 830  *   Any other value - error.
 831  **/
 832 int
 833 lpfc_hba_down_prep(struct lpfc_hba *phba)
 834 {
 835         struct lpfc_vport **vports;
 836         int i;
 837
 838         if (phba->sli_rev <= LPFC_SLI_REV3) {
 839                 /* Disable interrupts */
 840                 writel(0, phba->HCregaddr);
 841                 readl(phba->HCregaddr); /* flush */
 842         }
 843
 844         if (phba->pport->load_flag & FC_UNLOADING)
 845                 lpfc_cleanup_discovery_resources(phba->pport);
 846         else {
 847                 vports = lpfc_create_vport_work_array(phba);
 848                 if (vports != NULL)
 849                         for (i = 0; i <= phba->max_vports &&
 850                                 vports[i] != NULL; i++)
 851                                 lpfc_cleanup_discovery_resources(vports[i]);
 852                 lpfc_destroy_vport_work_array(phba, vports);
 853         }
 854         return 0;
 855 }
 856
 857 /**
 858  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 859  * rspiocb which got deferred
 860  *
 861  * @phba: pointer to lpfc HBA data structure.
 862  *
 863  * This routine will cleanup completed slow path events after HBA is reset
 864  * when bringing down the SLI Layer.
 865  *
 866  *
 867  * Return codes
 868  *   void.
 869  **/
 870 static void
 871 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 872 {
 873         struct lpfc_iocbq *rspiocbq;
 874         struct hbq_dmabuf *dmabuf;
 875         struct lpfc_cq_event *cq_event;
 876
 877         spin_lock_irq(&phba->hbalock);
 878         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 879         spin_unlock_irq(&phba->hbalock);
 880
 881         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 882                 /* Get the response iocb from the head of work queue */
 883                 spin_lock_irq(&phba->hbalock);
 884                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 885                                  cq_event, struct lpfc_cq_event, list);
 886                 spin_unlock_irq(&phba->hbalock);
 887
 888                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 889                 case CQE_CODE_COMPL_WQE:
 890                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 891                                                  cq_event);
 892                         lpfc_sli_release_iocbq(phba, rspiocbq);
 893                         break;
 894                 case CQE_CODE_RECEIVE:
 895                 case CQE_CODE_RECEIVE_V1:
 896                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 897                                               cq_event);
 898                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 899                 }
 900         }
 901 }
 902
 903 /**
 904  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 905  * @phba: pointer to lpfc HBA data structure.
 906  *
 907  * This routine will cleanup posted ELS buffers after the HBA is reset
 908  * when bringing down the SLI Layer.
 909  *
 910  *
 911  * Return codes
 912  *   void.
 913  **/
 914 static void
 915 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 916 {
 917         struct lpfc_sli *psli = &phba->sli;
 918         struct lpfc_sli_ring *pring;
 919         struct lpfc_dmabuf *mp, *next_mp;
 920         LIST_HEAD(buflist);
 921         int count;
 922
 923         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 924                 lpfc_sli_hbqbuf_free_all(phba);
 925         else {
 926                 /* Cleanup preposted buffers on the ELS ring */
 927                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 928                 spin_lock_irq(&phba->hbalock);
 929                 list_splice_init(&pring->postbufq, &buflist);
 930                 spin_unlock_irq(&phba->hbalock);
 931
 932                 count = 0;
 933                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 934                         list_del(&mp->list);
 935                         count++;
 936                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 937                         kfree(mp);
 938                 }
 939
 940                 spin_lock_irq(&phba->hbalock);
 941                 pring->postbufq_cnt -= count;
 942                 spin_unlock_irq(&phba->hbalock);
 943         }
 944 }
 945
 946 /**
 947  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 948  * @phba: pointer to lpfc HBA data structure.
 949  *
 950  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 951  * down the SLI Layer.
 952  *
 953  * Return codes
 954  *   void
 955  **/
 956 static void
 957 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 958 {
 959         struct lpfc_sli *psli = &phba->sli;
 960         struct lpfc_queue *qp = NULL;
 961         struct lpfc_sli_ring *pring;
 962         LIST_HEAD(completions);
 963         int i;
 964         struct lpfc_iocbq *piocb, *next_iocb;
 965
 966         if (phba->sli_rev != LPFC_SLI_REV4) {
 967                 for (i = 0; i < psli->num_rings; i++) {
 968                         pring = &psli->sli3_ring[i];
 969                         spin_lock_irq(&phba->hbalock);
 970                         /* At this point in time the HBA is either reset or DOA
 971                          * Nothing should be on txcmplq as it will
 972                          * NEVER complete.
 973                          */
 974                         list_splice_init(&pring->txcmplq, &completions);
 975                         pring->txcmplq_cnt = 0;
 976                         spin_unlock_irq(&phba->hbalock);
 977
 978                         lpfc_sli_abort_iocb_ring(phba, pring);
 979                 }
 980                 /* Cancel all the IOCBs from the completions list */
 981                 lpfc_sli_cancel_iocbs(phba, &completions,
 982                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 983                 return;
 984         }
 985         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 986                 pring = qp->pring;
 987                 if (!pring)
 988                         continue;
 989                 spin_lock_irq(&pring->ring_lock);
 990                 list_for_each_entry_safe(piocb, next_iocb,
 991                                          &pring->txcmplq, list)
 992                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 993                 list_splice_init(&pring->txcmplq, &completions);
 994                 pring->txcmplq_cnt = 0;
 995                 spin_unlock_irq(&pring->ring_lock);
 996                 lpfc_sli_abort_iocb_ring(phba, pring);
 997         }
 998         /* Cancel all the IOCBs from the completions list */
 999         lpfc_sli_cancel_iocbs(phba, &completions,
1000                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1001 }
1002
1003 /**
1004  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1005         int i;
1006  * @phba: pointer to lpfc HBA data structure.
1007  *
1008  * This routine will do uninitialization after the HBA is reset when bring
1009  * down the SLI Layer.
1010  *
1011  * Return codes
1012  *   0 - success.
1013  *   Any other value - error.
1014  **/
1015 static int
1016 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1017 {
1018         lpfc_hba_free_post_buf(phba);
1019         lpfc_hba_clean_txcmplq(phba);
1020         return 0;
1021 }
1022
1023 /**
1024  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1025  * @phba: pointer to lpfc HBA data structure.
1026  *
1027  * This routine will do uninitialization after the HBA is reset when bring
1028  * down the SLI Layer.
1029  *
1030  * Return codes
1031  *   0 - success.
1032  *   Any other value - error.
1033  **/
1034 static int
1035 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1036 {
1037         struct lpfc_io_buf *psb, *psb_next;
1038         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1039         struct lpfc_sli4_hdw_queue *qp;
1040         LIST_HEAD(aborts);
1041         LIST_HEAD(nvme_aborts);
1042         LIST_HEAD(nvmet_aborts);
1043         struct lpfc_sglq *sglq_entry = NULL;
1044         int cnt, idx;
1045
1046
1047         lpfc_sli_hbqbuf_free_all(phba);
1048         lpfc_hba_clean_txcmplq(phba);
1049
1050         /* At this point in time the HBA is either reset or DOA. Either
1051          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1052          * on the lpfc_els_sgl_list so that it can either be freed if the
1053          * driver is unloading or reposted if the driver is restarting
1054          * the port.
1055          */
1056         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1057                                         /* scsl_buf_list */
1058         /* sgl_list_lock required because worker thread uses this
1059          * list.
1060          */
1061         spin_lock(&phba->sli4_hba.sgl_list_lock);
1062         list_for_each_entry(sglq_entry,
1063                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1064                 sglq_entry->state = SGL_FREED;
1065
1066         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1067                         &phba->sli4_hba.lpfc_els_sgl_list);
1068
1069
1070         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1071
1072         /* abts_xxxx_buf_list_lock required because worker thread uses this
1073          * list.
1074          */
1075         cnt = 0;
1076         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1077                 qp = &phba->sli4_hba.hdwq[idx];
1078
1079                 spin_lock(&qp->abts_io_buf_list_lock);
1080                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1081                                  &aborts);
1082
1083                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1084                         psb->pCmd = NULL;
1085                         psb->status = IOSTAT_SUCCESS;
1086                         cnt++;
1087                 }
1088                 spin_lock(&qp->io_buf_list_put_lock);
1089                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1090                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1091                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1092                 qp->abts_scsi_io_bufs = 0;
1093                 qp->abts_nvme_io_bufs = 0;
1094                 spin_unlock(&qp->io_buf_list_put_lock);
1095                 spin_unlock(&qp->abts_io_buf_list_lock);
1096         }
1097         spin_unlock_irq(&phba->hbalock);
1098
1099         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1100                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1101                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1102                                  &nvmet_aborts);
1103                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1104                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1105                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1106                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1107                 }
1108         }
1109
1110         lpfc_sli4_free_sp_events(phba);
1111         return cnt;
1112 }
1113
1114 /**
1115  * lpfc_hba_down_post - Wrapper func for hba down post routine
1116  * @phba: pointer to lpfc HBA data structure.
1117  *
1118  * This routine wraps the actual SLI3 or SLI4 routine for performing
1119  * uninitialization after the HBA is reset when bring down the SLI Layer.
1120  *
1121  * Return codes
1122  *   0 - success.
1123  *   Any other value - error.
1124  **/
1125 int
1126 lpfc_hba_down_post(struct lpfc_hba *phba)
1127 {
1128         return (*phba->lpfc_hba_down_post)(phba);
1129 }
1130
1131 /**
1132  * lpfc_hb_timeout - The HBA-timer timeout handler
1133  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1134  *
1135  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1136  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1137  * work-port-events bitmap and the worker thread is notified. This timeout
1138  * event will be used by the worker thread to invoke the actual timeout
1139  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1140  * be performed in the timeout handler and the HBA timeout event bit shall
1141  * be cleared by the worker thread after it has taken the event bitmap out.
1142  **/
1143 static void
1144 lpfc_hb_timeout(struct timer_list *t)
1145 {
1146         struct lpfc_hba *phba;
1147         uint32_t tmo_posted;
1148         unsigned long iflag;
1149
1150         phba = from_timer(phba, t, hb_tmofunc);
1151
1152         /* Check for heart beat timeout conditions */
1153         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1154         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1155         if (!tmo_posted)
1156                 phba->pport->work_port_events |= WORKER_HB_TMO;
1157         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1158
1159         /* Tell the worker thread there is work to do */
1160         if (!tmo_posted)
1161                 lpfc_worker_wake_up(phba);
1162         return;
1163 }
1164
1165 /**
1166  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1167  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1168  *
1169  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1170  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1171  * work-port-events bitmap and the worker thread is notified. This timeout
1172  * event will be used by the worker thread to invoke the actual timeout
1173  * handler routine, lpfc_rrq_handler. Any periodical operations will
1174  * be performed in the timeout handler and the RRQ timeout event bit shall
1175  * be cleared by the worker thread after it has taken the event bitmap out.
1176  **/
1177 static void
1178 lpfc_rrq_timeout(struct timer_list *t)
1179 {
1180         struct lpfc_hba *phba;
1181         unsigned long iflag;
1182
1183         phba = from_timer(phba, t, rrq_tmr);
1184         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1185         if (!(phba->pport->load_flag & FC_UNLOADING))
1186                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1187         else
1188                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1189         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1190
1191         if (!(phba->pport->load_flag & FC_UNLOADING))
1192                 lpfc_worker_wake_up(phba);
1193 }
1194
1195 /**
1196  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1197  * @phba: pointer to lpfc hba data structure.
1198  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1199  *
1200  * This is the callback function to the lpfc heart-beat mailbox command.
1201  * If configured, the lpfc driver issues the heart-beat mailbox command to
1202  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1203  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1204  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1205  * heart-beat outstanding state. Once the mailbox command comes back and
1206  * no error conditions detected, the heart-beat mailbox command timer is
1207  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1208  * state is cleared for the next heart-beat. If the timer expired with the
1209  * heart-beat outstanding state set, the driver will put the HBA offline.
1210  **/
1211 static void
1212 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1213 {
1214         unsigned long drvr_flag;
1215
1216         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1217         phba->hb_outstanding = 0;
1218         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1219
1220         /* Check and reset heart-beat timer is necessary */
1221         mempool_free(pmboxq, phba->mbox_mem_pool);
1222         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1223                 !(phba->link_state == LPFC_HBA_ERROR) &&
1224                 !(phba->pport->load_flag & FC_UNLOADING))
1225                 mod_timer(&phba->hb_tmofunc,
1226                           jiffies +
1227                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1228         return;
1229 }
1230
1231 static void
1232 lpfc_hb_eq_delay_work(struct work_struct *work)
1233 {
1234         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1235                                              struct lpfc_hba, eq_delay_work);
1236         struct lpfc_eq_intr_info *eqi, *eqi_new;
1237         struct lpfc_queue *eq, *eq_next;
1238         unsigned char *eqcnt = NULL;
1239         uint32_t usdelay;
1240         int i;
1241         bool update = false;
1242
1243         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1244                 return;
1245
1246         if (phba->link_state == LPFC_HBA_ERROR ||
1247             phba->pport->fc_flag & FC_OFFLINE_MODE)
1248                 goto requeue;
1249
1250         eqcnt = kcalloc(num_possible_cpus(), sizeof(unsigned char),
1251                         GFP_KERNEL);
1252         if (!eqcnt)
1253                 goto requeue;
1254
1255         if (phba->cfg_irq_chann > 1) {
1256                 /* Loop thru all IRQ vectors */
1257                 for (i = 0; i < phba->cfg_irq_chann; i++) {
1258                         /* Get the EQ corresponding to the IRQ vector */
1259                         eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1260                         if (!eq)
1261                                 continue;
1262                         if (eq->q_mode) {
1263                                 update = true;
1264                                 break;
1265                         }
1266                         if (eqcnt[eq->last_cpu] < 2)
1267                                 eqcnt[eq->last_cpu]++;
1268                 }
1269         } else
1270                 update = true;
1271
1272         for_each_present_cpu(i) {
1273                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1274                 if (!update && eqcnt[i] < 2) {
1275                         eqi->icnt = 0;
1276                         continue;
1277                 }
1278
1279                 usdelay = (eqi->icnt / LPFC_IMAX_THRESHOLD) *
1280                            LPFC_EQ_DELAY_STEP;
1281                 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1282                         usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1283
1284                 eqi->icnt = 0;
1285
1286                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1287                         if (eq->last_cpu != i) {
1288                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1289                                                       eq->last_cpu);
1290                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1291                                 continue;
1292                         }
1293                         if (usdelay != eq->q_mode)
1294                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1295                                                          usdelay);
1296                 }
1297         }
1298
1299         kfree(eqcnt);
1300
1301 requeue:
1302         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1303                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1304 }
1305
1306 /**
1307  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1308  * @phba: pointer to lpfc hba data structure.
1309  *
1310  * For each heartbeat, this routine does some heuristic methods to adjust
1311  * XRI distribution. The goal is to fully utilize free XRIs.
1312  **/
1313 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1314 {
1315         u32 i;
1316         u32 hwq_count;
1317
1318         hwq_count = phba->cfg_hdw_queue;
1319         for (i = 0; i < hwq_count; i++) {
1320                 /* Adjust XRIs in private pool */
1321                 lpfc_adjust_pvt_pool_count(phba, i);
1322
1323                 /* Adjust high watermark */
1324                 lpfc_adjust_high_watermark(phba, i);
1325
1326 #ifdef LPFC_MXP_STAT
1327                 /* Snapshot pbl, pvt and busy count */
1328                 lpfc_snapshot_mxp(phba, i);
1329 #endif
1330         }
1331 }
1332
1333 /**
1334  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1335  * @phba: pointer to lpfc hba data structure.
1336  *
1337  * This is the actual HBA-timer timeout handler to be invoked by the worker
1338  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1339  * handler performs any periodic operations needed for the device. If such
1340  * periodic event has already been attended to either in the interrupt handler
1341  * or by processing slow-ring or fast-ring events within the HBA-timer
1342  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1343  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1344  * is configured and there is no heart-beat mailbox command outstanding, a
1345  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1346  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1347  * to offline.
1348  **/
1349 void
1350 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1351 {
1352         struct lpfc_vport **vports;
1353         LPFC_MBOXQ_t *pmboxq;
1354         struct lpfc_dmabuf *buf_ptr;
1355         int retval, i;
1356         struct lpfc_sli *psli = &phba->sli;
1357         LIST_HEAD(completions);
1358
1359         if (phba->cfg_xri_rebalancing) {
1360                 /* Multi-XRI pools handler */
1361                 lpfc_hb_mxp_handler(phba);
1362         }
1363
1364         vports = lpfc_create_vport_work_array(phba);
1365         if (vports != NULL)
1366                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1367                         lpfc_rcv_seq_check_edtov(vports[i]);
1368                         lpfc_fdmi_num_disc_check(vports[i]);
1369                 }
1370         lpfc_destroy_vport_work_array(phba, vports);
1371
1372         if ((phba->link_state == LPFC_HBA_ERROR) ||
1373                 (phba->pport->load_flag & FC_UNLOADING) ||
1374                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1375                 return;
1376
1377         spin_lock_irq(&phba->pport->work_port_lock);
1378
1379         if (time_after(phba->last_completion_time +
1380                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1381                         jiffies)) {
1382                 spin_unlock_irq(&phba->pport->work_port_lock);
1383                 if (!phba->hb_outstanding)
1384                         mod_timer(&phba->hb_tmofunc,
1385                                 jiffies +
1386                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1387                 else
1388                         mod_timer(&phba->hb_tmofunc,
1389                                 jiffies +
1390                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1391                 return;
1392         }
1393         spin_unlock_irq(&phba->pport->work_port_lock);
1394
1395         if (phba->elsbuf_cnt &&
1396                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1397                 spin_lock_irq(&phba->hbalock);
1398                 list_splice_init(&phba->elsbuf, &completions);
1399                 phba->elsbuf_cnt = 0;
1400                 phba->elsbuf_prev_cnt = 0;
1401                 spin_unlock_irq(&phba->hbalock);
1402
1403                 while (!list_empty(&completions)) {
1404                         list_remove_head(&completions, buf_ptr,
1405                                 struct lpfc_dmabuf, list);
1406                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1407                         kfree(buf_ptr);
1408                 }
1409         }
1410         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1411
1412         /* If there is no heart beat outstanding, issue a heartbeat command */
1413         if (phba->cfg_enable_hba_heartbeat) {
1414                 if (!phba->hb_outstanding) {
1415                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1416                                 (list_empty(&psli->mboxq))) {
1417                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1418                                                         GFP_KERNEL);
1419                                 if (!pmboxq) {
1420                                         mod_timer(&phba->hb_tmofunc,
1421                                                  jiffies +
1422                                                  msecs_to_jiffies(1000 *
1423                                                  LPFC_HB_MBOX_INTERVAL));
1424                                         return;
1425                                 }
1426
1427                                 lpfc_heart_beat(phba, pmboxq);
1428                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1429                                 pmboxq->vport = phba->pport;
1430                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1431                                                 MBX_NOWAIT);
1432
1433                                 if (retval != MBX_BUSY &&
1434                                         retval != MBX_SUCCESS) {
1435                                         mempool_free(pmboxq,
1436                                                         phba->mbox_mem_pool);
1437                                         mod_timer(&phba->hb_tmofunc,
1438                                                 jiffies +
1439                                                 msecs_to_jiffies(1000 *
1440                                                 LPFC_HB_MBOX_INTERVAL));
1441                                         return;
1442                                 }
1443                                 phba->skipped_hb = 0;
1444                                 phba->hb_outstanding = 1;
1445                         } else if (time_before_eq(phba->last_completion_time,
1446                                         phba->skipped_hb)) {
1447                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1448                                         "2857 Last completion time not "
1449                                         " updated in %d ms\n",
1450                                         jiffies_to_msecs(jiffies
1451                                                  - phba->last_completion_time));
1452                         } else
1453                                 phba->skipped_hb = jiffies;
1454
1455                         mod_timer(&phba->hb_tmofunc,
1456                                  jiffies +
1457                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1458                         return;
1459                 } else {
1460                         /*
1461                         * If heart beat timeout called with hb_outstanding set
1462                         * we need to give the hb mailbox cmd a chance to
1463                         * complete or TMO.
1464                         */
1465                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1466                                         "0459 Adapter heartbeat still out"
1467                                         "standing:last compl time was %d ms.\n",
1468                                         jiffies_to_msecs(jiffies
1469                                                  - phba->last_completion_time));
1470                         mod_timer(&phba->hb_tmofunc,
1471                                 jiffies +
1472                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1473                 }
1474         } else {
1475                         mod_timer(&phba->hb_tmofunc,
1476                                 jiffies +
1477                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1478         }
1479 }
1480
1481 /**
1482  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1483  * @phba: pointer to lpfc hba data structure.
1484  *
1485  * This routine is called to bring the HBA offline when HBA hardware error
1486  * other than Port Error 6 has been detected.
1487  **/
1488 static void
1489 lpfc_offline_eratt(struct lpfc_hba *phba)
1490 {
1491         struct lpfc_sli   *psli = &phba->sli;
1492
1493         spin_lock_irq(&phba->hbalock);
1494         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495         spin_unlock_irq(&phba->hbalock);
1496         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1497
1498         lpfc_offline(phba);
1499         lpfc_reset_barrier(phba);
1500         spin_lock_irq(&phba->hbalock);
1501         lpfc_sli_brdreset(phba);
1502         spin_unlock_irq(&phba->hbalock);
1503         lpfc_hba_down_post(phba);
1504         lpfc_sli_brdready(phba, HS_MBRDY);
1505         lpfc_unblock_mgmt_io(phba);
1506         phba->link_state = LPFC_HBA_ERROR;
1507         return;
1508 }
1509
1510 /**
1511  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1512  * @phba: pointer to lpfc hba data structure.
1513  *
1514  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1515  * other than Port Error 6 has been detected.
1516  **/
1517 void
1518 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1519 {
1520         spin_lock_irq(&phba->hbalock);
1521         phba->link_state = LPFC_HBA_ERROR;
1522         spin_unlock_irq(&phba->hbalock);
1523
1524         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1525         lpfc_sli_flush_io_rings(phba);
1526         lpfc_offline(phba);
1527         lpfc_hba_down_post(phba);
1528         lpfc_unblock_mgmt_io(phba);
1529 }
1530
1531 /**
1532  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1533  * @phba: pointer to lpfc hba data structure.
1534  *
1535  * This routine is invoked to handle the deferred HBA hardware error
1536  * conditions. This type of error is indicated by HBA by setting ER1
1537  * and another ER bit in the host status register. The driver will
1538  * wait until the ER1 bit clears before handling the error condition.
1539  **/
1540 static void
1541 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1542 {
1543         uint32_t old_host_status = phba->work_hs;
1544         struct lpfc_sli *psli = &phba->sli;
1545
1546         /* If the pci channel is offline, ignore possible errors,
1547          * since we cannot communicate with the pci card anyway.
1548          */
1549         if (pci_channel_offline(phba->pcidev)) {
1550                 spin_lock_irq(&phba->hbalock);
1551                 phba->hba_flag &= ~DEFER_ERATT;
1552                 spin_unlock_irq(&phba->hbalock);
1553                 return;
1554         }
1555
1556         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557                 "0479 Deferred Adapter Hardware Error "
1558                 "Data: x%x x%x x%x\n",
1559                 phba->work_hs,
1560                 phba->work_status[0], phba->work_status[1]);
1561
1562         spin_lock_irq(&phba->hbalock);
1563         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1564         spin_unlock_irq(&phba->hbalock);
1565
1566
1567         /*
1568          * Firmware stops when it triggred erratt. That could cause the I/Os
1569          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1570          * SCSI layer retry it after re-establishing link.
1571          */
1572         lpfc_sli_abort_fcp_rings(phba);
1573
1574         /*
1575          * There was a firmware error. Take the hba offline and then
1576          * attempt to restart it.
1577          */
1578         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1579         lpfc_offline(phba);
1580
1581         /* Wait for the ER1 bit to clear.*/
1582         while (phba->work_hs & HS_FFER1) {
1583                 msleep(100);
1584                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1585                         phba->work_hs = UNPLUG_ERR ;
1586                         break;
1587                 }
1588                 /* If driver is unloading let the worker thread continue */
1589                 if (phba->pport->load_flag & FC_UNLOADING) {
1590                         phba->work_hs = 0;
1591                         break;
1592                 }
1593         }
1594
1595         /*
1596          * This is to ptrotect against a race condition in which
1597          * first write to the host attention register clear the
1598          * host status register.
1599          */
1600         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1601                 phba->work_hs = old_host_status & ~HS_FFER1;
1602
1603         spin_lock_irq(&phba->hbalock);
1604         phba->hba_flag &= ~DEFER_ERATT;
1605         spin_unlock_irq(&phba->hbalock);
1606         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1607         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1608 }
1609
1610 static void
1611 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1612 {
1613         struct lpfc_board_event_header board_event;
1614         struct Scsi_Host *shost;
1615
1616         board_event.event_type = FC_REG_BOARD_EVENT;
1617         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1618         shost = lpfc_shost_from_vport(phba->pport);
1619         fc_host_post_vendor_event(shost, fc_get_event_number(),
1620                                   sizeof(board_event),
1621                                   (char *) &board_event,
1622                                   LPFC_NL_VENDOR_ID);
1623 }
1624
1625 /**
1626  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1627  * @phba: pointer to lpfc hba data structure.
1628  *
1629  * This routine is invoked to handle the following HBA hardware error
1630  * conditions:
1631  * 1 - HBA error attention interrupt
1632  * 2 - DMA ring index out of range
1633  * 3 - Mailbox command came back as unknown
1634  **/
1635 static void
1636 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1637 {
1638         struct lpfc_vport *vport = phba->pport;
1639         struct lpfc_sli   *psli = &phba->sli;
1640         uint32_t event_data;
1641         unsigned long temperature;
1642         struct temp_event temp_event_data;
1643         struct Scsi_Host  *shost;
1644
1645         /* If the pci channel is offline, ignore possible errors,
1646          * since we cannot communicate with the pci card anyway.
1647          */
1648         if (pci_channel_offline(phba->pcidev)) {
1649                 spin_lock_irq(&phba->hbalock);
1650                 phba->hba_flag &= ~DEFER_ERATT;
1651                 spin_unlock_irq(&phba->hbalock);
1652                 return;
1653         }
1654
1655         /* If resets are disabled then leave the HBA alone and return */
1656         if (!phba->cfg_enable_hba_reset)
1657                 return;
1658
1659         /* Send an internal error event to mgmt application */
1660         lpfc_board_errevt_to_mgmt(phba);
1661
1662         if (phba->hba_flag & DEFER_ERATT)
1663                 lpfc_handle_deferred_eratt(phba);
1664
1665         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1666                 if (phba->work_hs & HS_FFER6)
1667                         /* Re-establishing Link */
1668                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1669                                         "1301 Re-establishing Link "
1670                                         "Data: x%x x%x x%x\n",
1671                                         phba->work_hs, phba->work_status[0],
1672                                         phba->work_status[1]);
1673                 if (phba->work_hs & HS_FFER8)
1674                         /* Device Zeroization */
1675                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1676                                         "2861 Host Authentication device "
1677                                         "zeroization Data:x%x x%x x%x\n",
1678                                         phba->work_hs, phba->work_status[0],
1679                                         phba->work_status[1]);
1680
1681                 spin_lock_irq(&phba->hbalock);
1682                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1683                 spin_unlock_irq(&phba->hbalock);
1684
1685                 /*
1686                 * Firmware stops when it triggled erratt with HS_FFER6.
1687                 * That could cause the I/Os dropped by the firmware.
1688                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1689                 * retry it after re-establishing link.
1690                 */
1691                 lpfc_sli_abort_fcp_rings(phba);
1692
1693                 /*
1694                  * There was a firmware error.  Take the hba offline and then
1695                  * attempt to restart it.
1696                  */
1697                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1698                 lpfc_offline(phba);
1699                 lpfc_sli_brdrestart(phba);
1700                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1701                         lpfc_unblock_mgmt_io(phba);
1702                         return;
1703                 }
1704                 lpfc_unblock_mgmt_io(phba);
1705         } else if (phba->work_hs & HS_CRIT_TEMP) {
1706                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1707                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1708                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1709                 temp_event_data.data = (uint32_t)temperature;
1710
1711                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1712                                 "0406 Adapter maximum temperature exceeded "
1713                                 "(%ld), taking this port offline "
1714                                 "Data: x%x x%x x%x\n",
1715                                 temperature, phba->work_hs,
1716                                 phba->work_status[0], phba->work_status[1]);
1717
1718                 shost = lpfc_shost_from_vport(phba->pport);
1719                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1720                                           sizeof(temp_event_data),
1721                                           (char *) &temp_event_data,
1722                                           SCSI_NL_VID_TYPE_PCI
1723                                           | PCI_VENDOR_ID_EMULEX);
1724
1725                 spin_lock_irq(&phba->hbalock);
1726                 phba->over_temp_state = HBA_OVER_TEMP;
1727                 spin_unlock_irq(&phba->hbalock);
1728                 lpfc_offline_eratt(phba);
1729
1730         } else {
1731                 /* The if clause above forces this code path when the status
1732                  * failure is a value other than FFER6. Do not call the offline
1733                  * twice. This is the adapter hardware error path.
1734                  */
1735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1736                                 "0457 Adapter Hardware Error "
1737                                 "Data: x%x x%x x%x\n",
1738                                 phba->work_hs,
1739                                 phba->work_status[0], phba->work_status[1]);
1740
1741                 event_data = FC_REG_DUMP_EVENT;
1742                 shost = lpfc_shost_from_vport(vport);
1743                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1744                                 sizeof(event_data), (char *) &event_data,
1745                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1746
1747                 lpfc_offline_eratt(phba);
1748         }
1749         return;
1750 }
1751
1752 /**
1753  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1754  * @phba: pointer to lpfc hba data structure.
1755  * @mbx_action: flag for mailbox shutdown action.
1756  *
1757  * This routine is invoked to perform an SLI4 port PCI function reset in
1758  * response to port status register polling attention. It waits for port
1759  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1760  * During this process, interrupt vectors are freed and later requested
1761  * for handling possible port resource change.
1762  **/
1763 static int
1764 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1765                             bool en_rn_msg)
1766 {
1767         int rc;
1768         uint32_t intr_mode;
1769
1770         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1771             LPFC_SLI_INTF_IF_TYPE_2) {
1772                 /*
1773                  * On error status condition, driver need to wait for port
1774                  * ready before performing reset.
1775                  */
1776                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1777                 if (rc)
1778                         return rc;
1779         }
1780
1781         /* need reset: attempt for port recovery */
1782         if (en_rn_msg)
1783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1784                                 "2887 Reset Needed: Attempting Port "
1785                                 "Recovery...\n");
1786         lpfc_offline_prep(phba, mbx_action);
1787         lpfc_sli_flush_io_rings(phba);
1788         lpfc_offline(phba);
1789         /* release interrupt for possible resource change */
1790         lpfc_sli4_disable_intr(phba);
1791         rc = lpfc_sli_brdrestart(phba);
1792         if (rc) {
1793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1794                                 "6309 Failed to restart board\n");
1795                 return rc;
1796         }
1797         /* request and enable interrupt */
1798         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1799         if (intr_mode == LPFC_INTR_ERROR) {
1800                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1801                                 "3175 Failed to enable interrupt\n");
1802                 return -EIO;
1803         }
1804         phba->intr_mode = intr_mode;
1805         rc = lpfc_online(phba);
1806         if (rc == 0)
1807                 lpfc_unblock_mgmt_io(phba);
1808
1809         return rc;
1810 }
1811
1812 /**
1813  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1814  * @phba: pointer to lpfc hba data structure.
1815  *
1816  * This routine is invoked to handle the SLI4 HBA hardware error attention
1817  * conditions.
1818  **/
1819 static void
1820 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1821 {
1822         struct lpfc_vport *vport = phba->pport;
1823         uint32_t event_data;
1824         struct Scsi_Host *shost;
1825         uint32_t if_type;
1826         struct lpfc_register portstat_reg = {0};
1827         uint32_t reg_err1, reg_err2;
1828         uint32_t uerrlo_reg, uemasklo_reg;
1829         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1830         bool en_rn_msg = true;
1831         struct temp_event temp_event_data;
1832         struct lpfc_register portsmphr_reg;
1833         int rc, i;
1834
1835         /* If the pci channel is offline, ignore possible errors, since
1836          * we cannot communicate with the pci card anyway.
1837          */
1838         if (pci_channel_offline(phba->pcidev)) {
1839                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1840                                 "3166 pci channel is offline\n");
1841                 lpfc_sli4_offline_eratt(phba);
1842                 return;
1843         }
1844
1845         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1846         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1847         switch (if_type) {
1848         case LPFC_SLI_INTF_IF_TYPE_0:
1849                 pci_rd_rc1 = lpfc_readl(
1850                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1851                                 &uerrlo_reg);
1852                 pci_rd_rc2 = lpfc_readl(
1853                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1854                                 &uemasklo_reg);
1855                 /* consider PCI bus read error as pci_channel_offline */
1856                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1857                         return;
1858                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1859                         lpfc_sli4_offline_eratt(phba);
1860                         return;
1861                 }
1862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1863                                 "7623 Checking UE recoverable");
1864
1865                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1866                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1867                                        &portsmphr_reg.word0))
1868                                 continue;
1869
1870                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1871                                                    &portsmphr_reg);
1872                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1873                             LPFC_PORT_SEM_UE_RECOVERABLE)
1874                                 break;
1875                         /*Sleep for 1Sec, before checking SEMAPHORE */
1876                         msleep(1000);
1877                 }
1878
1879                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1880                                 "4827 smphr_port_status x%x : Waited %dSec",
1881                                 smphr_port_status, i);
1882
1883                 /* Recoverable UE, reset the HBA device */
1884                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1885                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1886                         for (i = 0; i < 20; i++) {
1887                                 msleep(1000);
1888                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1889                                     &portsmphr_reg.word0) &&
1890                                     (LPFC_POST_STAGE_PORT_READY ==
1891                                      bf_get(lpfc_port_smphr_port_status,
1892                                      &portsmphr_reg))) {
1893                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1894                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1895                                         if (rc == 0)
1896                                                 return;
1897                                         lpfc_printf_log(phba,
1898                                                 KERN_ERR, LOG_INIT,
1899                                                 "4215 Failed to recover UE");
1900                                         break;
1901                                 }
1902                         }
1903                 }
1904                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1905                                 "7624 Firmware not ready: Failing UE recovery,"
1906                                 " waited %dSec", i);
1907                 phba->link_state = LPFC_HBA_ERROR;
1908                 break;
1909
1910         case LPFC_SLI_INTF_IF_TYPE_2:
1911         case LPFC_SLI_INTF_IF_TYPE_6:
1912                 pci_rd_rc1 = lpfc_readl(
1913                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1914                                 &portstat_reg.word0);
1915                 /* consider PCI bus read error as pci_channel_offline */
1916                 if (pci_rd_rc1 == -EIO) {
1917                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1918                                 "3151 PCI bus read access failure: x%x\n",
1919                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1920                         lpfc_sli4_offline_eratt(phba);
1921                         return;
1922                 }
1923                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1924                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1925                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1926                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1927                                 "2889 Port Overtemperature event, "
1928                                 "taking port offline Data: x%x x%x\n",
1929                                 reg_err1, reg_err2);
1930
1931                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1932                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1933                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1934                         temp_event_data.data = 0xFFFFFFFF;
1935
1936                         shost = lpfc_shost_from_vport(phba->pport);
1937                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1938                                                   sizeof(temp_event_data),
1939                                                   (char *)&temp_event_data,
1940                                                   SCSI_NL_VID_TYPE_PCI
1941                                                   | PCI_VENDOR_ID_EMULEX);
1942
1943                         spin_lock_irq(&phba->hbalock);
1944                         phba->over_temp_state = HBA_OVER_TEMP;
1945                         spin_unlock_irq(&phba->hbalock);
1946                         lpfc_sli4_offline_eratt(phba);
1947                         return;
1948                 }
1949                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1950                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1951                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1952                                         "3143 Port Down: Firmware Update "
1953                                         "Detected\n");
1954                         en_rn_msg = false;
1955                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1956                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1957                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1958                                         "3144 Port Down: Debug Dump\n");
1959                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1960                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1961                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1962                                         "3145 Port Down: Provisioning\n");
1963
1964                 /* If resets are disabled then leave the HBA alone and return */
1965                 if (!phba->cfg_enable_hba_reset)
1966                         return;
1967
1968                 /* Check port status register for function reset */
1969                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1970                                 en_rn_msg);
1971                 if (rc == 0) {
1972                         /* don't report event on forced debug dump */
1973                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1974                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1975                                 return;
1976                         else
1977                                 break;
1978                 }
1979                 /* fall through for not able to recover */
1980                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1981                                 "3152 Unrecoverable error\n");
1982                 phba->link_state = LPFC_HBA_ERROR;
1983                 break;
1984         case LPFC_SLI_INTF_IF_TYPE_1:
1985         default:
1986                 break;
1987         }
1988         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1989                         "3123 Report dump event to upper layer\n");
1990         /* Send an internal error event to mgmt application */
1991         lpfc_board_errevt_to_mgmt(phba);
1992
1993         event_data = FC_REG_DUMP_EVENT;
1994         shost = lpfc_shost_from_vport(vport);
1995         fc_host_post_vendor_event(shost, fc_get_event_number(),
1996                                   sizeof(event_data), (char *) &event_data,
1997                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1998 }
1999
2000 /**
2001  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2002  * @phba: pointer to lpfc HBA data structure.
2003  *
2004  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2005  * routine from the API jump table function pointer from the lpfc_hba struct.
2006  *
2007  * Return codes
2008  *   0 - success.
2009  *   Any other value - error.
2010  **/
2011 void
2012 lpfc_handle_eratt(struct lpfc_hba *phba)
2013 {
2014         (*phba->lpfc_handle_eratt)(phba);
2015 }
2016
2017 /**
2018  * lpfc_handle_latt - The HBA link event handler
2019  * @phba: pointer to lpfc hba data structure.
2020  *
2021  * This routine is invoked from the worker thread to handle a HBA host
2022  * attention link event. SLI3 only.
2023  **/
2024 void
2025 lpfc_handle_latt(struct lpfc_hba *phba)
2026 {
2027         struct lpfc_vport *vport = phba->pport;
2028         struct lpfc_sli   *psli = &phba->sli;
2029         LPFC_MBOXQ_t *pmb;
2030         volatile uint32_t control;
2031         struct lpfc_dmabuf *mp;
2032         int rc = 0;
2033
2034         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2035         if (!pmb) {
2036                 rc = 1;
2037                 goto lpfc_handle_latt_err_exit;
2038         }
2039
2040         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2041         if (!mp) {
2042                 rc = 2;
2043                 goto lpfc_handle_latt_free_pmb;
2044         }
2045
2046         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2047         if (!mp->virt) {
2048                 rc = 3;
2049                 goto lpfc_handle_latt_free_mp;
2050         }
2051
2052         /* Cleanup any outstanding ELS commands */
2053         lpfc_els_flush_all_cmd(phba);
2054
2055         psli->slistat.link_event++;
2056         lpfc_read_topology(phba, pmb, mp);
2057         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2058         pmb->vport = vport;
2059         /* Block ELS IOCBs until we have processed this mbox command */
2060         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2061         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2062         if (rc == MBX_NOT_FINISHED) {
2063                 rc = 4;
2064                 goto lpfc_handle_latt_free_mbuf;
2065         }
2066
2067         /* Clear Link Attention in HA REG */
2068         spin_lock_irq(&phba->hbalock);
2069         writel(HA_LATT, phba->HAregaddr);
2070         readl(phba->HAregaddr); /* flush */
2071         spin_unlock_irq(&phba->hbalock);
2072
2073         return;
2074
2075 lpfc_handle_latt_free_mbuf:
2076         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2077         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2078 lpfc_handle_latt_free_mp:
2079         kfree(mp);
2080 lpfc_handle_latt_free_pmb:
2081         mempool_free(pmb, phba->mbox_mem_pool);
2082 lpfc_handle_latt_err_exit:
2083         /* Enable Link attention interrupts */
2084         spin_lock_irq(&phba->hbalock);
2085         psli->sli_flag |= LPFC_PROCESS_LA;
2086         control = readl(phba->HCregaddr);
2087         control |= HC_LAINT_ENA;
2088         writel(control, phba->HCregaddr);
2089         readl(phba->HCregaddr); /* flush */
2090
2091         /* Clear Link Attention in HA REG */
2092         writel(HA_LATT, phba->HAregaddr);
2093         readl(phba->HAregaddr); /* flush */
2094         spin_unlock_irq(&phba->hbalock);
2095         lpfc_linkdown(phba);
2096         phba->link_state = LPFC_HBA_ERROR;
2097
2098         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2099                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2100
2101         return;
2102 }
2103
2104 /**
2105  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2106  * @phba: pointer to lpfc hba data structure.
2107  * @vpd: pointer to the vital product data.
2108  * @len: length of the vital product data in bytes.
2109  *
2110  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2111  * an array of characters. In this routine, the ModelName, ProgramType, and
2112  * ModelDesc, etc. fields of the phba data structure will be populated.
2113  *
2114  * Return codes
2115  *   0 - pointer to the VPD passed in is NULL
2116  *   1 - success
2117  **/
2118 int
2119 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2120 {
2121         uint8_t lenlo, lenhi;
2122         int Length;
2123         int i, j;
2124         int finished = 0;
2125         int index = 0;
2126
2127         if (!vpd)
2128                 return 0;
2129
2130         /* Vital Product */
2131         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2132                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2133                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2134                         (uint32_t) vpd[3]);
2135         while (!finished && (index < (len - 4))) {
2136                 switch (vpd[index]) {
2137                 case 0x82:
2138                 case 0x91:
2139                         index += 1;
2140                         lenlo = vpd[index];
2141                         index += 1;
2142                         lenhi = vpd[index];
2143                         index += 1;
2144                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2145                         index += i;
2146                         break;
2147                 case 0x90:
2148                         index += 1;
2149                         lenlo = vpd[index];
2150                         index += 1;
2151                         lenhi = vpd[index];
2152                         index += 1;
2153                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2154                         if (Length > len - index)
2155                                 Length = len - index;
2156                         while (Length > 0) {
2157                         /* Look for Serial Number */
2158                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2159                                 index += 2;
2160                                 i = vpd[index];
2161                                 index += 1;
2162                                 j = 0;
2163                                 Length -= (3+i);
2164                                 while(i--) {
2165                                         phba->SerialNumber[j++] = vpd[index++];
2166                                         if (j == 31)
2167                                                 break;
2168                                 }
2169                                 phba->SerialNumber[j] = 0;
2170                                 continue;
2171                         }
2172                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2173                                 phba->vpd_flag |= VPD_MODEL_DESC;
2174                                 index += 2;
2175                                 i = vpd[index];
2176                                 index += 1;
2177                                 j = 0;
2178                                 Length -= (3+i);
2179                                 while(i--) {
2180                                         phba->ModelDesc[j++] = vpd[index++];
2181                                         if (j == 255)
2182                                                 break;
2183                                 }
2184                                 phba->ModelDesc[j] = 0;
2185                                 continue;
2186                         }
2187                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2188                                 phba->vpd_flag |= VPD_MODEL_NAME;
2189                                 index += 2;
2190                                 i = vpd[index];
2191                                 index += 1;
2192                                 j = 0;
2193                                 Length -= (3+i);
2194                                 while(i--) {
2195                                         phba->ModelName[j++] = vpd[index++];
2196                                         if (j == 79)
2197                                                 break;
2198                                 }
2199                                 phba->ModelName[j] = 0;
2200                                 continue;
2201                         }
2202                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2203                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2204                                 index += 2;
2205                                 i = vpd[index];
2206                                 index += 1;
2207                                 j = 0;
2208                                 Length -= (3+i);
2209                                 while(i--) {
2210                                         phba->ProgramType[j++] = vpd[index++];
2211                                         if (j == 255)
2212                                                 break;
2213                                 }
2214                                 phba->ProgramType[j] = 0;
2215                                 continue;
2216                         }
2217                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2218                                 phba->vpd_flag |= VPD_PORT;
2219                                 index += 2;
2220                                 i = vpd[index];
2221                                 index += 1;
2222                                 j = 0;
2223                                 Length -= (3+i);
2224                                 while(i--) {
2225                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2226                                             (phba->sli4_hba.pport_name_sta ==
2227                                              LPFC_SLI4_PPNAME_GET)) {
2228                                                 j++;
2229                                                 index++;
2230                                         } else
2231                                                 phba->Port[j++] = vpd[index++];
2232                                         if (j == 19)
2233                                                 break;
2234                                 }
2235                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2236                                     (phba->sli4_hba.pport_name_sta ==
2237                                      LPFC_SLI4_PPNAME_NON))
2238                                         phba->Port[j] = 0;
2239                                 continue;
2240                         }
2241                         else {
2242                                 index += 2;
2243                                 i = vpd[index];
2244                                 index += 1;
2245                                 index += i;
2246                                 Length -= (3 + i);
2247                         }
2248                 }
2249                 finished = 0;
2250                 break;
2251                 case 0x78:
2252                         finished = 1;
2253                         break;
2254                 default:
2255                         index ++;
2256                         break;
2257                 }
2258         }
2259
2260         return(1);
2261 }
2262
2263 /**
2264  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2265  * @phba: pointer to lpfc hba data structure.
2266  * @mdp: pointer to the data structure to hold the derived model name.
2267  * @descp: pointer to the data structure to hold the derived description.
2268  *
2269  * This routine retrieves HBA's description based on its registered PCI device
2270  * ID. The @descp passed into this function points to an array of 256 chars. It
2271  * shall be returned with the model name, maximum speed, and the host bus type.
2272  * The @mdp passed into this function points to an array of 80 chars. When the
2273  * function returns, the @mdp will be filled with the model name.
2274  **/
2275 static void
2276 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2277 {
2278         lpfc_vpd_t *vp;
2279         uint16_t dev_id = phba->pcidev->device;
2280         int max_speed;
2281         int GE = 0;
2282         int oneConnect = 0; /* default is not a oneConnect */
2283         struct {
2284                 char *name;
2285                 char *bus;
2286                 char *function;
2287         } m = {"<Unknown>", "", ""};
2288
2289         if (mdp && mdp[0] != '\0'
2290                 && descp && descp[0] != '\0')
2291                 return;
2292
2293         if (phba->lmt & LMT_64Gb)
2294                 max_speed = 64;
2295         else if (phba->lmt & LMT_32Gb)
2296                 max_speed = 32;
2297         else if (phba->lmt & LMT_16Gb)
2298                 max_speed = 16;
2299         else if (phba->lmt & LMT_10Gb)
2300                 max_speed = 10;
2301         else if (phba->lmt & LMT_8Gb)
2302                 max_speed = 8;
2303         else if (phba->lmt & LMT_4Gb)
2304                 max_speed = 4;
2305         else if (phba->lmt & LMT_2Gb)
2306                 max_speed = 2;
2307         else if (phba->lmt & LMT_1Gb)
2308                 max_speed = 1;
2309         else
2310                 max_speed = 0;
2311
2312         vp = &phba->vpd;
2313
2314         switch (dev_id) {
2315         case PCI_DEVICE_ID_FIREFLY:
2316                 m = (typeof(m)){"LP6000", "PCI",
2317                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2318                 break;
2319         case PCI_DEVICE_ID_SUPERFLY:
2320                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2321                         m = (typeof(m)){"LP7000", "PCI", ""};
2322                 else
2323                         m = (typeof(m)){"LP7000E", "PCI", ""};
2324                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2325                 break;
2326         case PCI_DEVICE_ID_DRAGONFLY:
2327                 m = (typeof(m)){"LP8000", "PCI",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_CENTAUR:
2331                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2332                         m = (typeof(m)){"LP9002", "PCI", ""};
2333                 else
2334                         m = (typeof(m)){"LP9000", "PCI", ""};
2335                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2336                 break;
2337         case PCI_DEVICE_ID_RFLY:
2338                 m = (typeof(m)){"LP952", "PCI",
2339                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2340                 break;
2341         case PCI_DEVICE_ID_PEGASUS:
2342                 m = (typeof(m)){"LP9802", "PCI-X",
2343                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2344                 break;
2345         case PCI_DEVICE_ID_THOR:
2346                 m = (typeof(m)){"LP10000", "PCI-X",
2347                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2348                 break;
2349         case PCI_DEVICE_ID_VIPER:
2350                 m = (typeof(m)){"LPX1000",  "PCI-X",
2351                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_PFLY:
2354                 m = (typeof(m)){"LP982", "PCI-X",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_TFLY:
2358                 m = (typeof(m)){"LP1050", "PCI-X",
2359                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_HELIOS:
2362                 m = (typeof(m)){"LP11000", "PCI-X2",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_HELIOS_SCSP:
2366                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_HELIOS_DCSP:
2370                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2371                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2372                 break;
2373         case PCI_DEVICE_ID_NEPTUNE:
2374                 m = (typeof(m)){"LPe1000", "PCIe",
2375                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2376                 break;
2377         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2378                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2379                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2380                 break;
2381         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2382                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2383                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_BMID:
2386                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2387                 break;
2388         case PCI_DEVICE_ID_BSMB:
2389                 m = (typeof(m)){"LP111", "PCI-X2",
2390                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2391                 break;
2392         case PCI_DEVICE_ID_ZEPHYR:
2393                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2394                 break;
2395         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2396                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2397                 break;
2398         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2399                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2400                 GE = 1;
2401                 break;
2402         case PCI_DEVICE_ID_ZMID:
2403                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2404                 break;
2405         case PCI_DEVICE_ID_ZSMB:
2406                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2407                 break;
2408         case PCI_DEVICE_ID_LP101:
2409                 m = (typeof(m)){"LP101", "PCI-X",
2410                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_LP10000S:
2413                 m = (typeof(m)){"LP10000-S", "PCI",
2414                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2415                 break;
2416         case PCI_DEVICE_ID_LP11000S:
2417                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2418                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2419                 break;
2420         case PCI_DEVICE_ID_LPE11000S:
2421                 m = (typeof(m)){"LPe11000-S", "PCIe",
2422                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_SAT:
2425                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_SAT_MID:
2428                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_SAT_SMB:
2431                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2432                 break;
2433         case PCI_DEVICE_ID_SAT_DCSP:
2434                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT_SCSP:
2437                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_SAT_S:
2440                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_HORNET:
2443                 m = (typeof(m)){"LP21000", "PCIe",
2444                                 "Obsolete, Unsupported FCoE Adapter"};
2445                 GE = 1;
2446                 break;
2447         case PCI_DEVICE_ID_PROTEUS_VF:
2448                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2449                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_PROTEUS_PF:
2452                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2453                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_PROTEUS_S:
2456                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2457                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2458                 break;
2459         case PCI_DEVICE_ID_TIGERSHARK:
2460                 oneConnect = 1;
2461                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2462                 break;
2463         case PCI_DEVICE_ID_TOMCAT:
2464                 oneConnect = 1;
2465                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2466                 break;
2467         case PCI_DEVICE_ID_FALCON:
2468                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2469                                 "EmulexSecure Fibre"};
2470                 break;
2471         case PCI_DEVICE_ID_BALIUS:
2472                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2473                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2474                 break;
2475         case PCI_DEVICE_ID_LANCER_FC:
2476                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2477                 break;
2478         case PCI_DEVICE_ID_LANCER_FC_VF:
2479                 m = (typeof(m)){"LPe16000", "PCIe",
2480                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2481                 break;
2482         case PCI_DEVICE_ID_LANCER_FCOE:
2483                 oneConnect = 1;
2484                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2485                 break;
2486         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2487                 oneConnect = 1;
2488                 m = (typeof(m)){"OCe15100", "PCIe",
2489                                 "Obsolete, Unsupported FCoE"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_G6_FC:
2492                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2493                 break;
2494         case PCI_DEVICE_ID_LANCER_G7_FC:
2495                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2496                 break;
2497         case PCI_DEVICE_ID_SKYHAWK:
2498         case PCI_DEVICE_ID_SKYHAWK_VF:
2499                 oneConnect = 1;
2500                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2501                 break;
2502         default:
2503                 m = (typeof(m)){"Unknown", "", ""};
2504                 break;
2505         }
2506
2507         if (mdp && mdp[0] == '\0')
2508                 snprintf(mdp, 79,"%s", m.name);
2509         /*
2510          * oneConnect hba requires special processing, they are all initiators
2511          * and we put the port number on the end
2512          */
2513         if (descp && descp[0] == '\0') {
2514                 if (oneConnect)
2515                         snprintf(descp, 255,
2516                                 "Emulex OneConnect %s, %s Initiator %s",
2517                                 m.name, m.function,
2518                                 phba->Port);
2519                 else if (max_speed == 0)
2520                         snprintf(descp, 255,
2521                                 "Emulex %s %s %s",
2522                                 m.name, m.bus, m.function);
2523                 else
2524                         snprintf(descp, 255,
2525                                 "Emulex %s %d%s %s %s",
2526                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2527                                 m.bus, m.function);
2528         }
2529 }
2530
2531 /**
2532  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2533  * @phba: pointer to lpfc hba data structure.
2534  * @pring: pointer to a IOCB ring.
2535  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2536  *
2537  * This routine posts a given number of IOCBs with the associated DMA buffer
2538  * descriptors specified by the cnt argument to the given IOCB ring.
2539  *
2540  * Return codes
2541  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2542  **/
2543 int
2544 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2545 {
2546         IOCB_t *icmd;
2547         struct lpfc_iocbq *iocb;
2548         struct lpfc_dmabuf *mp1, *mp2;
2549
2550         cnt += pring->missbufcnt;
2551
2552         /* While there are buffers to post */
2553         while (cnt > 0) {
2554                 /* Allocate buffer for  command iocb */
2555                 iocb = lpfc_sli_get_iocbq(phba);
2556                 if (iocb == NULL) {
2557                         pring->missbufcnt = cnt;
2558                         return cnt;
2559                 }
2560                 icmd = &iocb->iocb;
2561
2562                 /* 2 buffers can be posted per command */
2563                 /* Allocate buffer to post */
2564                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2565                 if (mp1)
2566                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2567                 if (!mp1 || !mp1->virt) {
2568                         kfree(mp1);
2569                         lpfc_sli_release_iocbq(phba, iocb);
2570                         pring->missbufcnt = cnt;
2571                         return cnt;
2572                 }
2573
2574                 INIT_LIST_HEAD(&mp1->list);
2575                 /* Allocate buffer to post */
2576                 if (cnt > 1) {
2577                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2578                         if (mp2)
2579                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2580                                                             &mp2->phys);
2581                         if (!mp2 || !mp2->virt) {
2582                                 kfree(mp2);
2583                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584                                 kfree(mp1);
2585                                 lpfc_sli_release_iocbq(phba, iocb);
2586                                 pring->missbufcnt = cnt;
2587                                 return cnt;
2588                         }
2589
2590                         INIT_LIST_HEAD(&mp2->list);
2591                 } else {
2592                         mp2 = NULL;
2593                 }
2594
2595                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2596                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2597                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2598                 icmd->ulpBdeCount = 1;
2599                 cnt--;
2600                 if (mp2) {
2601                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2602                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2603                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2604                         cnt--;
2605                         icmd->ulpBdeCount = 2;
2606                 }
2607
2608                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2609                 icmd->ulpLe = 1;
2610
2611                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2612                     IOCB_ERROR) {
2613                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2614                         kfree(mp1);
2615                         cnt++;
2616                         if (mp2) {
2617                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2618                                 kfree(mp2);
2619                                 cnt++;
2620                         }
2621                         lpfc_sli_release_iocbq(phba, iocb);
2622                         pring->missbufcnt = cnt;
2623                         return cnt;
2624                 }
2625                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2626                 if (mp2)
2627                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2628         }
2629         pring->missbufcnt = 0;
2630         return 0;
2631 }
2632
2633 /**
2634  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2635  * @phba: pointer to lpfc hba data structure.
2636  *
2637  * This routine posts initial receive IOCB buffers to the ELS ring. The
2638  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2639  * set to 64 IOCBs. SLI3 only.
2640  *
2641  * Return codes
2642  *   0 - success (currently always success)
2643  **/
2644 static int
2645 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2646 {
2647         struct lpfc_sli *psli = &phba->sli;
2648
2649         /* Ring 0, ELS / CT buffers */
2650         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2651         /* Ring 2 - FCP no buffers needed */
2652
2653         return 0;
2654 }
2655
2656 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2657
2658 /**
2659  * lpfc_sha_init - Set up initial array of hash table entries
2660  * @HashResultPointer: pointer to an array as hash table.
2661  *
2662  * This routine sets up the initial values to the array of hash table entries
2663  * for the LC HBAs.
2664  **/
2665 static void
2666 lpfc_sha_init(uint32_t * HashResultPointer)
2667 {
2668         HashResultPointer[0] = 0x67452301;
2669         HashResultPointer[1] = 0xEFCDAB89;
2670         HashResultPointer[2] = 0x98BADCFE;
2671         HashResultPointer[3] = 0x10325476;
2672         HashResultPointer[4] = 0xC3D2E1F0;
2673 }
2674
2675 /**
2676  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2677  * @HashResultPointer: pointer to an initial/result hash table.
2678  * @HashWorkingPointer: pointer to an working hash table.
2679  *
2680  * This routine iterates an initial hash table pointed by @HashResultPointer
2681  * with the values from the working hash table pointeed by @HashWorkingPointer.
2682  * The results are putting back to the initial hash table, returned through
2683  * the @HashResultPointer as the result hash table.
2684  **/
2685 static void
2686 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2687 {
2688         int t;
2689         uint32_t TEMP;
2690         uint32_t A, B, C, D, E;
2691         t = 16;
2692         do {
2693                 HashWorkingPointer[t] =
2694                     S(1,
2695                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2696                                                                      8] ^
2697                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2698         } while (++t <= 79);
2699         t = 0;
2700         A = HashResultPointer[0];
2701         B = HashResultPointer[1];
2702         C = HashResultPointer[2];
2703         D = HashResultPointer[3];
2704         E = HashResultPointer[4];
2705
2706         do {
2707                 if (t < 20) {
2708                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2709                 } else if (t < 40) {
2710                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2711                 } else if (t < 60) {
2712                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2713                 } else {
2714                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2715                 }
2716                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2717                 E = D;
2718                 D = C;
2719                 C = S(30, B);
2720                 B = A;
2721                 A = TEMP;
2722         } while (++t <= 79);
2723
2724         HashResultPointer[0] += A;
2725         HashResultPointer[1] += B;
2726         HashResultPointer[2] += C;
2727         HashResultPointer[3] += D;
2728         HashResultPointer[4] += E;
2729
2730 }
2731
2732 /**
2733  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2734  * @RandomChallenge: pointer to the entry of host challenge random number array.
2735  * @HashWorking: pointer to the entry of the working hash array.
2736  *
2737  * This routine calculates the working hash array referred by @HashWorking
2738  * from the challenge random numbers associated with the host, referred by
2739  * @RandomChallenge. The result is put into the entry of the working hash
2740  * array and returned by reference through @HashWorking.
2741  **/
2742 static void
2743 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2744 {
2745         *HashWorking = (*RandomChallenge ^ *HashWorking);
2746 }
2747
2748 /**
2749  * lpfc_hba_init - Perform special handling for LC HBA initialization
2750  * @phba: pointer to lpfc hba data structure.
2751  * @hbainit: pointer to an array of unsigned 32-bit integers.
2752  *
2753  * This routine performs the special handling for LC HBA initialization.
2754  **/
2755 void
2756 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2757 {
2758         int t;
2759         uint32_t *HashWorking;
2760         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2761
2762         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2763         if (!HashWorking)
2764                 return;
2765
2766         HashWorking[0] = HashWorking[78] = *pwwnn++;
2767         HashWorking[1] = HashWorking[79] = *pwwnn;
2768
2769         for (t = 0; t < 7; t++)
2770                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2771
2772         lpfc_sha_init(hbainit);
2773         lpfc_sha_iterate(hbainit, HashWorking);
2774         kfree(HashWorking);
2775 }
2776
2777 /**
2778  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2779  * @vport: pointer to a virtual N_Port data structure.
2780  *
2781  * This routine performs the necessary cleanups before deleting the @vport.
2782  * It invokes the discovery state machine to perform necessary state
2783  * transitions and to release the ndlps associated with the @vport. Note,
2784  * the physical port is treated as @vport 0.
2785  **/
2786 void
2787 lpfc_cleanup(struct lpfc_vport *vport)
2788 {
2789         struct lpfc_hba   *phba = vport->phba;
2790         struct lpfc_nodelist *ndlp, *next_ndlp;
2791         int i = 0;
2792
2793         if (phba->link_state > LPFC_LINK_DOWN)
2794                 lpfc_port_link_failure(vport);
2795
2796         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2797                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2798                         ndlp = lpfc_enable_node(vport, ndlp,
2799                                                 NLP_STE_UNUSED_NODE);
2800                         if (!ndlp)
2801                                 continue;
2802                         spin_lock_irq(&phba->ndlp_lock);
2803                         NLP_SET_FREE_REQ(ndlp);
2804                         spin_unlock_irq(&phba->ndlp_lock);
2805                         /* Trigger the release of the ndlp memory */
2806                         lpfc_nlp_put(ndlp);
2807                         continue;
2808                 }
2809                 spin_lock_irq(&phba->ndlp_lock);
2810                 if (NLP_CHK_FREE_REQ(ndlp)) {
2811                         /* The ndlp should not be in memory free mode already */
2812                         spin_unlock_irq(&phba->ndlp_lock);
2813                         continue;
2814                 } else
2815                         /* Indicate request for freeing ndlp memory */
2816                         NLP_SET_FREE_REQ(ndlp);
2817                 spin_unlock_irq(&phba->ndlp_lock);
2818
2819                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2820                     ndlp->nlp_DID == Fabric_DID) {
2821                         /* Just free up ndlp with Fabric_DID for vports */
2822                         lpfc_nlp_put(ndlp);
2823                         continue;
2824                 }
2825
2826                 /* take care of nodes in unused state before the state
2827                  * machine taking action.
2828                  */
2829                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2830                         lpfc_nlp_put(ndlp);
2831                         continue;
2832                 }
2833
2834                 if (ndlp->nlp_type & NLP_FABRIC)
2835                         lpfc_disc_state_machine(vport, ndlp, NULL,
2836                                         NLP_EVT_DEVICE_RECOVERY);
2837
2838                 lpfc_disc_state_machine(vport, ndlp, NULL,
2839                                              NLP_EVT_DEVICE_RM);
2840         }
2841
2842         /* At this point, ALL ndlp's should be gone
2843          * because of the previous NLP_EVT_DEVICE_RM.
2844          * Lets wait for this to happen, if needed.
2845          */
2846         while (!list_empty(&vport->fc_nodes)) {
2847                 if (i++ > 3000) {
2848                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2849                                 "0233 Nodelist not empty\n");
2850                         list_for_each_entry_safe(ndlp, next_ndlp,
2851                                                 &vport->fc_nodes, nlp_listp) {
2852                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2853                                                 LOG_NODE,
2854                                                 "0282 did:x%x ndlp:x%px "
2855                                                 "usgmap:x%x refcnt:%d\n",
2856                                                 ndlp->nlp_DID, (void *)ndlp,
2857                                                 ndlp->nlp_usg_map,
2858                                                 kref_read(&ndlp->kref));
2859                         }
2860                         break;
2861                 }
2862
2863                 /* Wait for any activity on ndlps to settle */
2864                 msleep(10);
2865         }
2866         lpfc_cleanup_vports_rrqs(vport, NULL);
2867 }
2868
2869 /**
2870  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2871  * @vport: pointer to a virtual N_Port data structure.
2872  *
2873  * This routine stops all the timers associated with a @vport. This function
2874  * is invoked before disabling or deleting a @vport. Note that the physical
2875  * port is treated as @vport 0.
2876  **/
2877 void
2878 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2879 {
2880         del_timer_sync(&vport->els_tmofunc);
2881         del_timer_sync(&vport->delayed_disc_tmo);
2882         lpfc_can_disctmo(vport);
2883         return;
2884 }
2885
2886 /**
2887  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2888  * @phba: pointer to lpfc hba data structure.
2889  *
2890  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2891  * caller of this routine should already hold the host lock.
2892  **/
2893 void
2894 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2895 {
2896         /* Clear pending FCF rediscovery wait flag */
2897         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2898
2899         /* Now, try to stop the timer */
2900         del_timer(&phba->fcf.redisc_wait);
2901 }
2902
2903 /**
2904  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2905  * @phba: pointer to lpfc hba data structure.
2906  *
2907  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2908  * checks whether the FCF rediscovery wait timer is pending with the host
2909  * lock held before proceeding with disabling the timer and clearing the
2910  * wait timer pendig flag.
2911  **/
2912 void
2913 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2914 {
2915         spin_lock_irq(&phba->hbalock);
2916         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2917                 /* FCF rediscovery timer already fired or stopped */
2918                 spin_unlock_irq(&phba->hbalock);
2919                 return;
2920         }
2921         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2922         /* Clear failover in progress flags */
2923         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2924         spin_unlock_irq(&phba->hbalock);
2925 }
2926
2927 /**
2928  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2929  * @phba: pointer to lpfc hba data structure.
2930  *
2931  * This routine stops all the timers associated with a HBA. This function is
2932  * invoked before either putting a HBA offline or unloading the driver.
2933  **/
2934 void
2935 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2936 {
2937         if (phba->pport)
2938                 lpfc_stop_vport_timers(phba->pport);
2939         cancel_delayed_work_sync(&phba->eq_delay_work);
2940         del_timer_sync(&phba->sli.mbox_tmo);
2941         del_timer_sync(&phba->fabric_block_timer);
2942         del_timer_sync(&phba->eratt_poll);
2943         del_timer_sync(&phba->hb_tmofunc);
2944         if (phba->sli_rev == LPFC_SLI_REV4) {
2945                 del_timer_sync(&phba->rrq_tmr);
2946                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2947         }
2948         phba->hb_outstanding = 0;
2949
2950         switch (phba->pci_dev_grp) {
2951         case LPFC_PCI_DEV_LP:
2952                 /* Stop any LightPulse device specific driver timers */
2953                 del_timer_sync(&phba->fcp_poll_timer);
2954                 break;
2955         case LPFC_PCI_DEV_OC:
2956                 /* Stop any OneConnect device specific driver timers */
2957                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2958                 break;
2959         default:
2960                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2961                                 "0297 Invalid device group (x%x)\n",
2962                                 phba->pci_dev_grp);
2963                 break;
2964         }
2965         return;
2966 }
2967
2968 /**
2969  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2970  * @phba: pointer to lpfc hba data structure.
2971  *
2972  * This routine marks a HBA's management interface as blocked. Once the HBA's
2973  * management interface is marked as blocked, all the user space access to
2974  * the HBA, whether they are from sysfs interface or libdfc interface will
2975  * all be blocked. The HBA is set to block the management interface when the
2976  * driver prepares the HBA interface for online or offline.
2977  **/
2978 static void
2979 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2980 {
2981         unsigned long iflag;
2982         uint8_t actcmd = MBX_HEARTBEAT;
2983         unsigned long timeout;
2984
2985         spin_lock_irqsave(&phba->hbalock, iflag);
2986         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2987         spin_unlock_irqrestore(&phba->hbalock, iflag);
2988         if (mbx_action == LPFC_MBX_NO_WAIT)
2989                 return;
2990         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2991         spin_lock_irqsave(&phba->hbalock, iflag);
2992         if (phba->sli.mbox_active) {
2993                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2994                 /* Determine how long we might wait for the active mailbox
2995                  * command to be gracefully completed by firmware.
2996                  */
2997                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2998                                 phba->sli.mbox_active) * 1000) + jiffies;
2999         }
3000         spin_unlock_irqrestore(&phba->hbalock, iflag);
3001
3002         /* Wait for the outstnading mailbox command to complete */
3003         while (phba->sli.mbox_active) {
3004                 /* Check active mailbox complete status every 2ms */
3005                 msleep(2);
3006                 if (time_after(jiffies, timeout)) {
3007                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3008                                 "2813 Mgmt IO is Blocked %x "
3009                                 "- mbox cmd %x still active\n",
3010                                 phba->sli.sli_flag, actcmd);
3011                         break;
3012                 }
3013         }
3014 }
3015
3016 /**
3017  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3018  * @phba: pointer to lpfc hba data structure.
3019  *
3020  * Allocate RPIs for all active remote nodes. This is needed whenever
3021  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3022  * is to fixup the temporary rpi assignments.
3023  **/
3024 void
3025 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3026 {
3027         struct lpfc_nodelist  *ndlp, *next_ndlp;
3028         struct lpfc_vport **vports;
3029         int i, rpi;
3030         unsigned long flags;
3031
3032         if (phba->sli_rev != LPFC_SLI_REV4)
3033                 return;
3034
3035         vports = lpfc_create_vport_work_array(phba);
3036         if (vports == NULL)
3037                 return;
3038
3039         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3040                 if (vports[i]->load_flag & FC_UNLOADING)
3041                         continue;
3042
3043                 list_for_each_entry_safe(ndlp, next_ndlp,
3044                                          &vports[i]->fc_nodes,
3045                                          nlp_listp) {
3046                         if (!NLP_CHK_NODE_ACT(ndlp))
3047                                 continue;
3048                         rpi = lpfc_sli4_alloc_rpi(phba);
3049                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3050                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3051                                 NLP_CLR_NODE_ACT(ndlp);
3052                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3053                                 continue;
3054                         }
3055                         ndlp->nlp_rpi = rpi;
3056                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3057                                          "0009 rpi:%x DID:%x "
3058                                          "flg:%x map:%x x%px\n", ndlp->nlp_rpi,
3059                                          ndlp->nlp_DID, ndlp->nlp_flag,
3060                                          ndlp->nlp_usg_map, ndlp);
3061                 }
3062         }
3063         lpfc_destroy_vport_work_array(phba, vports);
3064 }
3065
3066 /**
3067  * lpfc_create_expedite_pool - create expedite pool
3068  * @phba: pointer to lpfc hba data structure.
3069  *
3070  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3071  * to expedite pool. Mark them as expedite.
3072  **/
3073 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3074 {
3075         struct lpfc_sli4_hdw_queue *qp;
3076         struct lpfc_io_buf *lpfc_ncmd;
3077         struct lpfc_io_buf *lpfc_ncmd_next;
3078         struct lpfc_epd_pool *epd_pool;
3079         unsigned long iflag;
3080
3081         epd_pool = &phba->epd_pool;
3082         qp = &phba->sli4_hba.hdwq[0];
3083
3084         spin_lock_init(&epd_pool->lock);
3085         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3086         spin_lock(&epd_pool->lock);
3087         INIT_LIST_HEAD(&epd_pool->list);
3088         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3089                                  &qp->lpfc_io_buf_list_put, list) {
3090                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3091                 lpfc_ncmd->expedite = true;
3092                 qp->put_io_bufs--;
3093                 epd_pool->count++;
3094                 if (epd_pool->count >= XRI_BATCH)
3095                         break;
3096         }
3097         spin_unlock(&epd_pool->lock);
3098         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3099 }
3100
3101 /**
3102  * lpfc_destroy_expedite_pool - destroy expedite pool
3103  * @phba: pointer to lpfc hba data structure.
3104  *
3105  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3106  * of HWQ 0. Clear the mark.
3107  **/
3108 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3109 {
3110         struct lpfc_sli4_hdw_queue *qp;
3111         struct lpfc_io_buf *lpfc_ncmd;
3112         struct lpfc_io_buf *lpfc_ncmd_next;
3113         struct lpfc_epd_pool *epd_pool;
3114         unsigned long iflag;
3115
3116         epd_pool = &phba->epd_pool;
3117         qp = &phba->sli4_hba.hdwq[0];
3118
3119         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3120         spin_lock(&epd_pool->lock);
3121         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3122                                  &epd_pool->list, list) {
3123                 list_move_tail(&lpfc_ncmd->list,
3124                                &qp->lpfc_io_buf_list_put);
3125                 lpfc_ncmd->flags = false;
3126                 qp->put_io_bufs++;
3127                 epd_pool->count--;
3128         }
3129         spin_unlock(&epd_pool->lock);
3130         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3131 }
3132
3133 /**
3134  * lpfc_create_multixri_pools - create multi-XRI pools
3135  * @phba: pointer to lpfc hba data structure.
3136  *
3137  * This routine initialize public, private per HWQ. Then, move XRIs from
3138  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3139  * Initialized.
3140  **/
3141 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3142 {
3143         u32 i, j;
3144         u32 hwq_count;
3145         u32 count_per_hwq;
3146         struct lpfc_io_buf *lpfc_ncmd;
3147         struct lpfc_io_buf *lpfc_ncmd_next;
3148         unsigned long iflag;
3149         struct lpfc_sli4_hdw_queue *qp;
3150         struct lpfc_multixri_pool *multixri_pool;
3151         struct lpfc_pbl_pool *pbl_pool;
3152         struct lpfc_pvt_pool *pvt_pool;
3153
3154         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3155                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3156                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3157                         phba->sli4_hba.io_xri_cnt);
3158
3159         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3160                 lpfc_create_expedite_pool(phba);
3161
3162         hwq_count = phba->cfg_hdw_queue;
3163         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3164
3165         for (i = 0; i < hwq_count; i++) {
3166                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3167
3168                 if (!multixri_pool) {
3169                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3170                                         "1238 Failed to allocate memory for "
3171                                         "multixri_pool\n");
3172
3173                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3174                                 lpfc_destroy_expedite_pool(phba);
3175
3176                         j = 0;
3177                         while (j < i) {
3178                                 qp = &phba->sli4_hba.hdwq[j];
3179                                 kfree(qp->p_multixri_pool);
3180                                 j++;
3181                         }
3182                         phba->cfg_xri_rebalancing = 0;
3183                         return;
3184                 }
3185
3186                 qp = &phba->sli4_hba.hdwq[i];
3187                 qp->p_multixri_pool = multixri_pool;
3188
3189                 multixri_pool->xri_limit = count_per_hwq;
3190                 multixri_pool->rrb_next_hwqid = i;
3191
3192                 /* Deal with public free xri pool */
3193                 pbl_pool = &multixri_pool->pbl_pool;
3194                 spin_lock_init(&pbl_pool->lock);
3195                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3196                 spin_lock(&pbl_pool->lock);
3197                 INIT_LIST_HEAD(&pbl_pool->list);
3198                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3199                                          &qp->lpfc_io_buf_list_put, list) {
3200                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3201                         qp->put_io_bufs--;
3202                         pbl_pool->count++;
3203                 }
3204                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3205                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3206                                 pbl_pool->count, i);
3207                 spin_unlock(&pbl_pool->lock);
3208                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3209
3210                 /* Deal with private free xri pool */
3211                 pvt_pool = &multixri_pool->pvt_pool;
3212                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3213                 pvt_pool->low_watermark = XRI_BATCH;
3214                 spin_lock_init(&pvt_pool->lock);
3215                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3216                 INIT_LIST_HEAD(&pvt_pool->list);
3217                 pvt_pool->count = 0;
3218                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3219         }
3220 }
3221
3222 /**
3223  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3224  * @phba: pointer to lpfc hba data structure.
3225  *
3226  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3227  **/
3228 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3229 {
3230         u32 i;
3231         u32 hwq_count;
3232         struct lpfc_io_buf *lpfc_ncmd;
3233         struct lpfc_io_buf *lpfc_ncmd_next;
3234         unsigned long iflag;
3235         struct lpfc_sli4_hdw_queue *qp;
3236         struct lpfc_multixri_pool *multixri_pool;
3237         struct lpfc_pbl_pool *pbl_pool;
3238         struct lpfc_pvt_pool *pvt_pool;
3239
3240         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3241                 lpfc_destroy_expedite_pool(phba);
3242
3243         if (!(phba->pport->load_flag & FC_UNLOADING))
3244                 lpfc_sli_flush_io_rings(phba);
3245
3246         hwq_count = phba->cfg_hdw_queue;
3247
3248         for (i = 0; i < hwq_count; i++) {
3249                 qp = &phba->sli4_hba.hdwq[i];
3250                 multixri_pool = qp->p_multixri_pool;
3251                 if (!multixri_pool)
3252                         continue;
3253
3254                 qp->p_multixri_pool = NULL;
3255
3256                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3257
3258                 /* Deal with public free xri pool */
3259                 pbl_pool = &multixri_pool->pbl_pool;
3260                 spin_lock(&pbl_pool->lock);
3261
3262                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3263                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3264                                 pbl_pool->count, i);
3265
3266                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3267                                          &pbl_pool->list, list) {
3268                         list_move_tail(&lpfc_ncmd->list,
3269                                        &qp->lpfc_io_buf_list_put);
3270                         qp->put_io_bufs++;
3271                         pbl_pool->count--;
3272                 }
3273
3274                 INIT_LIST_HEAD(&pbl_pool->list);
3275                 pbl_pool->count = 0;
3276
3277                 spin_unlock(&pbl_pool->lock);
3278
3279                 /* Deal with private free xri pool */
3280                 pvt_pool = &multixri_pool->pvt_pool;
3281                 spin_lock(&pvt_pool->lock);
3282
3283                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3284                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3285                                 pvt_pool->count, i);
3286
3287                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3288                                          &pvt_pool->list, list) {
3289                         list_move_tail(&lpfc_ncmd->list,
3290                                        &qp->lpfc_io_buf_list_put);
3291                         qp->put_io_bufs++;
3292                         pvt_pool->count--;
3293                 }
3294
3295                 INIT_LIST_HEAD(&pvt_pool->list);
3296                 pvt_pool->count = 0;
3297
3298                 spin_unlock(&pvt_pool->lock);
3299                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3300
3301                 kfree(multixri_pool);
3302         }
3303 }
3304
3305 /**
3306  * lpfc_online - Initialize and bring a HBA online
3307  * @phba: pointer to lpfc hba data structure.
3308  *
3309  * This routine initializes the HBA and brings a HBA online. During this
3310  * process, the management interface is blocked to prevent user space access
3311  * to the HBA interfering with the driver initialization.
3312  *
3313  * Return codes
3314  *   0 - successful
3315  *   1 - failed
3316  **/
3317 int
3318 lpfc_online(struct lpfc_hba *phba)
3319 {
3320         struct lpfc_vport *vport;
3321         struct lpfc_vport **vports;
3322         int i, error = 0;
3323         bool vpis_cleared = false;
3324
3325         if (!phba)
3326                 return 0;
3327         vport = phba->pport;
3328
3329         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3330                 return 0;
3331
3332         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3333                         "0458 Bring Adapter online\n");
3334
3335         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3336
3337         if (phba->sli_rev == LPFC_SLI_REV4) {
3338                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3339                         lpfc_unblock_mgmt_io(phba);
3340                         return 1;
3341                 }
3342                 spin_lock_irq(&phba->hbalock);
3343                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3344                         vpis_cleared = true;
3345                 spin_unlock_irq(&phba->hbalock);
3346
3347                 /* Reestablish the local initiator port.
3348                  * The offline process destroyed the previous lport.
3349                  */
3350                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3351                                 !phba->nvmet_support) {
3352                         error = lpfc_nvme_create_localport(phba->pport);
3353                         if (error)
3354                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3355                                         "6132 NVME restore reg failed "
3356                                         "on nvmei error x%x\n", error);
3357                 }
3358         } else {
3359                 lpfc_sli_queue_init(phba);
3360                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3361                         lpfc_unblock_mgmt_io(phba);
3362                         return 1;
3363                 }
3364         }
3365
3366         vports = lpfc_create_vport_work_array(phba);
3367         if (vports != NULL) {
3368                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3369                         struct Scsi_Host *shost;
3370                         shost = lpfc_shost_from_vport(vports[i]);
3371                         spin_lock_irq(shost->host_lock);
3372                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3373                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3374                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3375                         if (phba->sli_rev == LPFC_SLI_REV4) {
3376                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3377                                 if ((vpis_cleared) &&
3378                                     (vports[i]->port_type !=
3379                                         LPFC_PHYSICAL_PORT))
3380                                         vports[i]->vpi = 0;
3381                         }
3382                         spin_unlock_irq(shost->host_lock);
3383                 }
3384         }
3385         lpfc_destroy_vport_work_array(phba, vports);
3386
3387         if (phba->cfg_xri_rebalancing)
3388                 lpfc_create_multixri_pools(phba);
3389
3390         lpfc_unblock_mgmt_io(phba);
3391         return 0;
3392 }
3393
3394 /**
3395  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3396  * @phba: pointer to lpfc hba data structure.
3397  *
3398  * This routine marks a HBA's management interface as not blocked. Once the
3399  * HBA's management interface is marked as not blocked, all the user space
3400  * access to the HBA, whether they are from sysfs interface or libdfc
3401  * interface will be allowed. The HBA is set to block the management interface
3402  * when the driver prepares the HBA interface for online or offline and then
3403  * set to unblock the management interface afterwards.
3404  **/
3405 void
3406 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3407 {
3408         unsigned long iflag;
3409
3410         spin_lock_irqsave(&phba->hbalock, iflag);
3411         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3412         spin_unlock_irqrestore(&phba->hbalock, iflag);
3413 }
3414
3415 /**
3416  * lpfc_offline_prep - Prepare a HBA to be brought offline
3417  * @phba: pointer to lpfc hba data structure.
3418  *
3419  * This routine is invoked to prepare a HBA to be brought offline. It performs
3420  * unregistration login to all the nodes on all vports and flushes the mailbox
3421  * queue to make it ready to be brought offline.
3422  **/
3423 void
3424 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3425 {
3426         struct lpfc_vport *vport = phba->pport;
3427         struct lpfc_nodelist  *ndlp, *next_ndlp;
3428         struct lpfc_vport **vports;
3429         struct Scsi_Host *shost;
3430         int i;
3431
3432         if (vport->fc_flag & FC_OFFLINE_MODE)
3433                 return;
3434
3435         lpfc_block_mgmt_io(phba, mbx_action);
3436
3437         lpfc_linkdown(phba);
3438
3439         /* Issue an unreg_login to all nodes on all vports */
3440         vports = lpfc_create_vport_work_array(phba);
3441         if (vports != NULL) {
3442                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3443                         if (vports[i]->load_flag & FC_UNLOADING)
3444                                 continue;
3445                         shost = lpfc_shost_from_vport(vports[i]);
3446                         spin_lock_irq(shost->host_lock);
3447                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3448                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3449                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3450                         spin_unlock_irq(shost->host_lock);
3451
3452                         shost = lpfc_shost_from_vport(vports[i]);
3453                         list_for_each_entry_safe(ndlp, next_ndlp,
3454                                                  &vports[i]->fc_nodes,
3455                                                  nlp_listp) {
3456                                 if (!NLP_CHK_NODE_ACT(ndlp))
3457                                         continue;
3458                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3459                                         continue;
3460                                 if (ndlp->nlp_type & NLP_FABRIC) {
3461                                         lpfc_disc_state_machine(vports[i], ndlp,
3462                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3463                                         lpfc_disc_state_machine(vports[i], ndlp,
3464                                                 NULL, NLP_EVT_DEVICE_RM);
3465                                 }
3466                                 spin_lock_irq(shost->host_lock);
3467                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3468                                 spin_unlock_irq(shost->host_lock);
3469                                 /*
3470                                  * Whenever an SLI4 port goes offline, free the
3471                                  * RPI. Get a new RPI when the adapter port
3472                                  * comes back online.
3473                                  */
3474                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3475                                         lpfc_printf_vlog(ndlp->vport,
3476                                                          KERN_INFO, LOG_NODE,
3477                                                          "0011 lpfc_offline: "
3478                                                          "ndlp:x%px did %x "
3479                                                          "usgmap:x%x rpi:%x\n",
3480                                                          ndlp, ndlp->nlp_DID,
3481                                                          ndlp->nlp_usg_map,
3482                                                          ndlp->nlp_rpi);
3483
3484                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3485                                 }
3486                                 lpfc_unreg_rpi(vports[i], ndlp);
3487                         }
3488                 }
3489         }
3490         lpfc_destroy_vport_work_array(phba, vports);
3491
3492         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3493
3494         if (phba->wq)
3495                 flush_workqueue(phba->wq);
3496 }
3497
3498 /**
3499  * lpfc_offline - Bring a HBA offline
3500  * @phba: pointer to lpfc hba data structure.
3501  *
3502  * This routine actually brings a HBA offline. It stops all the timers
3503  * associated with the HBA, brings down the SLI layer, and eventually
3504  * marks the HBA as in offline state for the upper layer protocol.
3505  **/
3506 void
3507 lpfc_offline(struct lpfc_hba *phba)
3508 {
3509         struct Scsi_Host  *shost;
3510         struct lpfc_vport **vports;
3511         int i;
3512
3513         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3514                 return;
3515
3516         /* stop port and all timers associated with this hba */
3517         lpfc_stop_port(phba);
3518
3519         /* Tear down the local and target port registrations.  The
3520          * nvme transports need to cleanup.
3521          */
3522         lpfc_nvmet_destroy_targetport(phba);
3523         lpfc_nvme_destroy_localport(phba->pport);
3524
3525         vports = lpfc_create_vport_work_array(phba);
3526         if (vports != NULL)
3527                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3528                         lpfc_stop_vport_timers(vports[i]);
3529         lpfc_destroy_vport_work_array(phba, vports);
3530         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3531                         "0460 Bring Adapter offline\n");
3532         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3533            now.  */
3534         lpfc_sli_hba_down(phba);
3535         spin_lock_irq(&phba->hbalock);
3536         phba->work_ha = 0;
3537         spin_unlock_irq(&phba->hbalock);
3538         vports = lpfc_create_vport_work_array(phba);
3539         if (vports != NULL)
3540                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3541                         shost = lpfc_shost_from_vport(vports[i]);
3542                         spin_lock_irq(shost->host_lock);
3543                         vports[i]->work_port_events = 0;
3544                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3545                         spin_unlock_irq(shost->host_lock);
3546                 }
3547         lpfc_destroy_vport_work_array(phba, vports);
3548
3549         if (phba->cfg_xri_rebalancing)
3550                 lpfc_destroy_multixri_pools(phba);
3551 }
3552
3553 /**
3554  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3555  * @phba: pointer to lpfc hba data structure.
3556  *
3557  * This routine is to free all the SCSI buffers and IOCBs from the driver
3558  * list back to kernel. It is called from lpfc_pci_remove_one to free
3559  * the internal resources before the device is removed from the system.
3560  **/
3561 static void
3562 lpfc_scsi_free(struct lpfc_hba *phba)
3563 {
3564         struct lpfc_io_buf *sb, *sb_next;
3565
3566         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3567                 return;
3568
3569         spin_lock_irq(&phba->hbalock);
3570
3571         /* Release all the lpfc_scsi_bufs maintained by this host. */
3572
3573         spin_lock(&phba->scsi_buf_list_put_lock);
3574         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3575                                  list) {
3576                 list_del(&sb->list);
3577                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3578                               sb->dma_handle);
3579                 kfree(sb);
3580                 phba->total_scsi_bufs--;
3581         }
3582         spin_unlock(&phba->scsi_buf_list_put_lock);
3583
3584         spin_lock(&phba->scsi_buf_list_get_lock);
3585         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3586                                  list) {
3587                 list_del(&sb->list);
3588                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3589                               sb->dma_handle);
3590                 kfree(sb);
3591                 phba->total_scsi_bufs--;
3592         }
3593         spin_unlock(&phba->scsi_buf_list_get_lock);
3594         spin_unlock_irq(&phba->hbalock);
3595 }
3596
3597 /**
3598  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3599  * @phba: pointer to lpfc hba data structure.
3600  *
3601  * This routine is to free all the IO buffers and IOCBs from the driver
3602  * list back to kernel. It is called from lpfc_pci_remove_one to free
3603  * the internal resources before the device is removed from the system.
3604  **/
3605 void
3606 lpfc_io_free(struct lpfc_hba *phba)
3607 {
3608         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3609         struct lpfc_sli4_hdw_queue *qp;
3610         int idx;
3611
3612         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3613                 qp = &phba->sli4_hba.hdwq[idx];
3614                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3615                 spin_lock(&qp->io_buf_list_put_lock);
3616                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3617                                          &qp->lpfc_io_buf_list_put,
3618                                          list) {
3619                         list_del(&lpfc_ncmd->list);
3620                         qp->put_io_bufs--;
3621                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3622                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3623                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3624                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3625                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3626                         kfree(lpfc_ncmd);
3627                         qp->total_io_bufs--;
3628                 }
3629                 spin_unlock(&qp->io_buf_list_put_lock);
3630
3631                 spin_lock(&qp->io_buf_list_get_lock);
3632                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3633                                          &qp->lpfc_io_buf_list_get,
3634                                          list) {
3635                         list_del(&lpfc_ncmd->list);
3636                         qp->get_io_bufs--;
3637                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3638                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3639                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3640                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3641                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3642                         kfree(lpfc_ncmd);
3643                         qp->total_io_bufs--;
3644                 }
3645                 spin_unlock(&qp->io_buf_list_get_lock);
3646         }
3647 }
3648
3649 /**
3650  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3651  * @phba: pointer to lpfc hba data structure.
3652  *
3653  * This routine first calculates the sizes of the current els and allocated
3654  * scsi sgl lists, and then goes through all sgls to updates the physical
3655  * XRIs assigned due to port function reset. During port initialization, the
3656  * current els and allocated scsi sgl lists are 0s.
3657  *
3658  * Return codes
3659  *   0 - successful (for now, it always returns 0)
3660  **/
3661 int
3662 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3663 {
3664         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3665         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3666         LIST_HEAD(els_sgl_list);
3667         int rc;
3668
3669         /*
3670          * update on pci function's els xri-sgl list
3671          */
3672         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3673
3674         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3675                 /* els xri-sgl expanded */
3676                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3677                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678                                 "3157 ELS xri-sgl count increased from "
3679                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3680                                 els_xri_cnt);
3681                 /* allocate the additional els sgls */
3682                 for (i = 0; i < xri_cnt; i++) {
3683                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3684                                              GFP_KERNEL);
3685                         if (sglq_entry == NULL) {
3686                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3687                                                 "2562 Failure to allocate an "
3688                                                 "ELS sgl entry:%d\n", i);
3689                                 rc = -ENOMEM;
3690                                 goto out_free_mem;
3691                         }
3692                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3693                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3694                                                            &sglq_entry->phys);
3695                         if (sglq_entry->virt == NULL) {
3696                                 kfree(sglq_entry);
3697                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3698                                                 "2563 Failure to allocate an "
3699                                                 "ELS mbuf:%d\n", i);
3700                                 rc = -ENOMEM;
3701                                 goto out_free_mem;
3702                         }
3703                         sglq_entry->sgl = sglq_entry->virt;
3704                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3705                         sglq_entry->state = SGL_FREED;
3706                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3707                 }
3708                 spin_lock_irq(&phba->hbalock);
3709                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3710                 list_splice_init(&els_sgl_list,
3711                                  &phba->sli4_hba.lpfc_els_sgl_list);
3712                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3713                 spin_unlock_irq(&phba->hbalock);
3714         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3715                 /* els xri-sgl shrinked */
3716                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3717                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3718                                 "3158 ELS xri-sgl count decreased from "
3719                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3720                                 els_xri_cnt);
3721                 spin_lock_irq(&phba->hbalock);
3722                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3723                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3724                                  &els_sgl_list);
3725                 /* release extra els sgls from list */
3726                 for (i = 0; i < xri_cnt; i++) {
3727                         list_remove_head(&els_sgl_list,
3728                                          sglq_entry, struct lpfc_sglq, list);
3729                         if (sglq_entry) {
3730                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3731                                                  sglq_entry->phys);
3732                                 kfree(sglq_entry);
3733                         }
3734                 }
3735                 list_splice_init(&els_sgl_list,
3736                                  &phba->sli4_hba.lpfc_els_sgl_list);
3737                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3738                 spin_unlock_irq(&phba->hbalock);
3739         } else
3740                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3741                                 "3163 ELS xri-sgl count unchanged: %d\n",
3742                                 els_xri_cnt);
3743         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3744
3745         /* update xris to els sgls on the list */
3746         sglq_entry = NULL;
3747         sglq_entry_next = NULL;
3748         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3749                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3750                 lxri = lpfc_sli4_next_xritag(phba);
3751                 if (lxri == NO_XRI) {
3752                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3753                                         "2400 Failed to allocate xri for "
3754                                         "ELS sgl\n");
3755                         rc = -ENOMEM;
3756                         goto out_free_mem;
3757                 }
3758                 sglq_entry->sli4_lxritag = lxri;
3759                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3760         }
3761         return 0;
3762
3763 out_free_mem:
3764         lpfc_free_els_sgl_list(phba);
3765         return rc;
3766 }
3767
3768 /**
3769  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3770  * @phba: pointer to lpfc hba data structure.
3771  *
3772  * This routine first calculates the sizes of the current els and allocated
3773  * scsi sgl lists, and then goes through all sgls to updates the physical
3774  * XRIs assigned due to port function reset. During port initialization, the
3775  * current els and allocated scsi sgl lists are 0s.
3776  *
3777  * Return codes
3778  *   0 - successful (for now, it always returns 0)
3779  **/
3780 int
3781 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3782 {
3783         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3784         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3785         uint16_t nvmet_xri_cnt;
3786         LIST_HEAD(nvmet_sgl_list);
3787         int rc;
3788
3789         /*
3790          * update on pci function's nvmet xri-sgl list
3791          */
3792         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3793
3794         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3795         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3796         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3797                 /* els xri-sgl expanded */
3798                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3799                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3800                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3801                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3802                 /* allocate the additional nvmet sgls */
3803                 for (i = 0; i < xri_cnt; i++) {
3804                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3805                                              GFP_KERNEL);
3806                         if (sglq_entry == NULL) {
3807                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3808                                                 "6303 Failure to allocate an "
3809                                                 "NVMET sgl entry:%d\n", i);
3810                                 rc = -ENOMEM;
3811                                 goto out_free_mem;
3812                         }
3813                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3814                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3815                                                            &sglq_entry->phys);
3816                         if (sglq_entry->virt == NULL) {
3817                                 kfree(sglq_entry);
3818                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3819                                                 "6304 Failure to allocate an "
3820                                                 "NVMET buf:%d\n", i);
3821                                 rc = -ENOMEM;
3822                                 goto out_free_mem;
3823                         }
3824                         sglq_entry->sgl = sglq_entry->virt;
3825                         memset(sglq_entry->sgl, 0,
3826                                phba->cfg_sg_dma_buf_size);
3827                         sglq_entry->state = SGL_FREED;
3828                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3829                 }
3830                 spin_lock_irq(&phba->hbalock);
3831                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3832                 list_splice_init(&nvmet_sgl_list,
3833                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3834                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3835                 spin_unlock_irq(&phba->hbalock);
3836         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3837                 /* nvmet xri-sgl shrunk */
3838                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3839                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3840                                 "6305 NVMET xri-sgl count decreased from "
3841                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3842                                 nvmet_xri_cnt);
3843                 spin_lock_irq(&phba->hbalock);
3844                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3845                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3846                                  &nvmet_sgl_list);
3847                 /* release extra nvmet sgls from list */
3848                 for (i = 0; i < xri_cnt; i++) {
3849                         list_remove_head(&nvmet_sgl_list,
3850                                          sglq_entry, struct lpfc_sglq, list);
3851                         if (sglq_entry) {
3852                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3853                                                     sglq_entry->phys);
3854                                 kfree(sglq_entry);
3855                         }
3856                 }
3857                 list_splice_init(&nvmet_sgl_list,
3858                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3859                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3860                 spin_unlock_irq(&phba->hbalock);
3861         } else
3862                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3863                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3864                                 nvmet_xri_cnt);
3865         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3866
3867         /* update xris to nvmet sgls on the list */
3868         sglq_entry = NULL;
3869         sglq_entry_next = NULL;
3870         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3871                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3872                 lxri = lpfc_sli4_next_xritag(phba);
3873                 if (lxri == NO_XRI) {
3874                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3875                                         "6307 Failed to allocate xri for "
3876                                         "NVMET sgl\n");
3877                         rc = -ENOMEM;
3878                         goto out_free_mem;
3879                 }
3880                 sglq_entry->sli4_lxritag = lxri;
3881                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3882         }
3883         return 0;
3884
3885 out_free_mem:
3886         lpfc_free_nvmet_sgl_list(phba);
3887         return rc;
3888 }
3889
3890 int
3891 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3892 {
3893         LIST_HEAD(blist);
3894         struct lpfc_sli4_hdw_queue *qp;
3895         struct lpfc_io_buf *lpfc_cmd;
3896         struct lpfc_io_buf *iobufp, *prev_iobufp;
3897         int idx, cnt, xri, inserted;
3898
3899         cnt = 0;
3900         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3901                 qp = &phba->sli4_hba.hdwq[idx];
3902                 spin_lock_irq(&qp->io_buf_list_get_lock);
3903                 spin_lock(&qp->io_buf_list_put_lock);
3904
3905                 /* Take everything off the get and put lists */
3906                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3907                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3908                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3909                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3910                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3911                 qp->get_io_bufs = 0;
3912                 qp->put_io_bufs = 0;
3913                 qp->total_io_bufs = 0;
3914                 spin_unlock(&qp->io_buf_list_put_lock);
3915                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3916         }
3917
3918         /*
3919          * Take IO buffers off blist and put on cbuf sorted by XRI.
3920          * This is because POST_SGL takes a sequential range of XRIs
3921          * to post to the firmware.
3922          */
3923         for (idx = 0; idx < cnt; idx++) {
3924                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3925                 if (!lpfc_cmd)
3926                         return cnt;
3927                 if (idx == 0) {
3928                         list_add_tail(&lpfc_cmd->list, cbuf);
3929                         continue;
3930                 }
3931                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3932                 inserted = 0;
3933                 prev_iobufp = NULL;
3934                 list_for_each_entry(iobufp, cbuf, list) {
3935                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3936                                 if (prev_iobufp)
3937                                         list_add(&lpfc_cmd->list,
3938                                                  &prev_iobufp->list);
3939                                 else
3940                                         list_add(&lpfc_cmd->list, cbuf);
3941                                 inserted = 1;
3942                                 break;
3943                         }
3944                         prev_iobufp = iobufp;
3945                 }
3946                 if (!inserted)
3947                         list_add_tail(&lpfc_cmd->list, cbuf);
3948         }
3949         return cnt;
3950 }
3951
3952 int
3953 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3954 {
3955         struct lpfc_sli4_hdw_queue *qp;
3956         struct lpfc_io_buf *lpfc_cmd;
3957         int idx, cnt;
3958
3959         qp = phba->sli4_hba.hdwq;
3960         cnt = 0;
3961         while (!list_empty(cbuf)) {
3962                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3963                         list_remove_head(cbuf, lpfc_cmd,
3964                                          struct lpfc_io_buf, list);
3965                         if (!lpfc_cmd)
3966                                 return cnt;
3967                         cnt++;
3968                         qp = &phba->sli4_hba.hdwq[idx];
3969                         lpfc_cmd->hdwq_no = idx;
3970                         lpfc_cmd->hdwq = qp;
3971                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3972                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3973                         spin_lock(&qp->io_buf_list_put_lock);
3974                         list_add_tail(&lpfc_cmd->list,
3975                                       &qp->lpfc_io_buf_list_put);
3976                         qp->put_io_bufs++;
3977                         qp->total_io_bufs++;
3978                         spin_unlock(&qp->io_buf_list_put_lock);
3979                 }
3980         }
3981         return cnt;
3982 }
3983
3984 /**
3985  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3986  * @phba: pointer to lpfc hba data structure.
3987  *
3988  * This routine first calculates the sizes of the current els and allocated
3989  * scsi sgl lists, and then goes through all sgls to updates the physical
3990  * XRIs assigned due to port function reset. During port initialization, the
3991  * current els and allocated scsi sgl lists are 0s.
3992  *
3993  * Return codes
3994  *   0 - successful (for now, it always returns 0)
3995  **/
3996 int
3997 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
3998 {
3999         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4000         uint16_t i, lxri, els_xri_cnt;
4001         uint16_t io_xri_cnt, io_xri_max;
4002         LIST_HEAD(io_sgl_list);
4003         int rc, cnt;
4004
4005         /*
4006          * update on pci function's allocated nvme xri-sgl list
4007          */
4008
4009         /* maximum number of xris available for nvme buffers */
4010         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4011         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4012         phba->sli4_hba.io_xri_max = io_xri_max;
4013
4014         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4015                         "6074 Current allocated XRI sgl count:%d, "
4016                         "maximum XRI count:%d\n",
4017                         phba->sli4_hba.io_xri_cnt,
4018                         phba->sli4_hba.io_xri_max);
4019
4020         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4021
4022         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4023                 /* max nvme xri shrunk below the allocated nvme buffers */
4024                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4025                                         phba->sli4_hba.io_xri_max;
4026                 /* release the extra allocated nvme buffers */
4027                 for (i = 0; i < io_xri_cnt; i++) {
4028                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4029                                          struct lpfc_io_buf, list);
4030                         if (lpfc_ncmd) {
4031                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4032                                               lpfc_ncmd->data,
4033                                               lpfc_ncmd->dma_handle);
4034                                 kfree(lpfc_ncmd);
4035                         }
4036                 }
4037                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4038         }
4039
4040         /* update xris associated to remaining allocated nvme buffers */
4041         lpfc_ncmd = NULL;
4042         lpfc_ncmd_next = NULL;
4043         phba->sli4_hba.io_xri_cnt = cnt;
4044         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4045                                  &io_sgl_list, list) {
4046                 lxri = lpfc_sli4_next_xritag(phba);
4047                 if (lxri == NO_XRI) {
4048                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4049                                         "6075 Failed to allocate xri for "
4050                                         "nvme buffer\n");
4051                         rc = -ENOMEM;
4052                         goto out_free_mem;
4053                 }
4054                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4055                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4056         }
4057         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4058         return 0;
4059
4060 out_free_mem:
4061         lpfc_io_free(phba);
4062         return rc;
4063 }
4064
4065 /**
4066  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4067  * @vport: The virtual port for which this call being executed.
4068  * @num_to_allocate: The requested number of buffers to allocate.
4069  *
4070  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4071  * the nvme buffer contains all the necessary information needed to initiate
4072  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4073  * them on a list, it post them to the port by using SGL block post.
4074  *
4075  * Return codes:
4076  *   int - number of IO buffers that were allocated and posted.
4077  *   0 = failure, less than num_to_alloc is a partial failure.
4078  **/
4079 int
4080 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4081 {
4082         struct lpfc_io_buf *lpfc_ncmd;
4083         struct lpfc_iocbq *pwqeq;
4084         uint16_t iotag, lxri = 0;
4085         int bcnt, num_posted;
4086         LIST_HEAD(prep_nblist);
4087         LIST_HEAD(post_nblist);
4088         LIST_HEAD(nvme_nblist);
4089
4090         phba->sli4_hba.io_xri_cnt = 0;
4091         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4092                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4093                 if (!lpfc_ncmd)
4094                         break;
4095                 /*
4096                  * Get memory from the pci pool to map the virt space to
4097                  * pci bus space for an I/O. The DMA buffer includes the
4098                  * number of SGE's necessary to support the sg_tablesize.
4099                  */
4100                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4101                                                   GFP_KERNEL,
4102                                                   &lpfc_ncmd->dma_handle);
4103                 if (!lpfc_ncmd->data) {
4104                         kfree(lpfc_ncmd);
4105                         break;
4106                 }
4107
4108                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4109                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4110                 } else {
4111                         /*
4112                          * 4K Page alignment is CRITICAL to BlockGuard, double
4113                          * check to be sure.
4114                          */
4115                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4116                             (((unsigned long)(lpfc_ncmd->data) &
4117                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4118                                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4119                                                 "3369 Memory alignment err: "
4120                                                 "addr=%lx\n",
4121                                                 (unsigned long)lpfc_ncmd->data);
4122                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4123                                               lpfc_ncmd->data,
4124                                               lpfc_ncmd->dma_handle);
4125                                 kfree(lpfc_ncmd);
4126                                 break;
4127                         }
4128                 }
4129
4130                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4131
4132                 lxri = lpfc_sli4_next_xritag(phba);
4133                 if (lxri == NO_XRI) {
4134                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4135                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4136                         kfree(lpfc_ncmd);
4137                         break;
4138                 }
4139                 pwqeq = &lpfc_ncmd->cur_iocbq;
4140
4141                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4142                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4143                 if (iotag == 0) {
4144                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4145                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4146                         kfree(lpfc_ncmd);
4147                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4148                                         "6121 Failed to allocate IOTAG for"
4149                                         " XRI:0x%x\n", lxri);
4150                         lpfc_sli4_free_xri(phba, lxri);
4151                         break;
4152                 }
4153                 pwqeq->sli4_lxritag = lxri;
4154                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4155                 pwqeq->context1 = lpfc_ncmd;
4156
4157                 /* Initialize local short-hand pointers. */
4158                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4159                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4160                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4161                 spin_lock_init(&lpfc_ncmd->buf_lock);
4162
4163                 /* add the nvme buffer to a post list */
4164                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4165                 phba->sli4_hba.io_xri_cnt++;
4166         }
4167         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4168                         "6114 Allocate %d out of %d requested new NVME "
4169                         "buffers\n", bcnt, num_to_alloc);
4170
4171         /* post the list of nvme buffer sgls to port if available */
4172         if (!list_empty(&post_nblist))
4173                 num_posted = lpfc_sli4_post_io_sgl_list(
4174                                 phba, &post_nblist, bcnt);
4175         else
4176                 num_posted = 0;
4177
4178         return num_posted;
4179 }
4180
4181 static uint64_t
4182 lpfc_get_wwpn(struct lpfc_hba *phba)
4183 {
4184         uint64_t wwn;
4185         int rc;
4186         LPFC_MBOXQ_t *mboxq;
4187         MAILBOX_t *mb;
4188
4189         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4190                                                 GFP_KERNEL);
4191         if (!mboxq)
4192                 return (uint64_t)-1;
4193
4194         /* First get WWN of HBA instance */
4195         lpfc_read_nv(phba, mboxq);
4196         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4197         if (rc != MBX_SUCCESS) {
4198                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4199                                 "6019 Mailbox failed , mbxCmd x%x "
4200                                 "READ_NV, mbxStatus x%x\n",
4201                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4202                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4203                 mempool_free(mboxq, phba->mbox_mem_pool);
4204                 return (uint64_t) -1;
4205         }
4206         mb = &mboxq->u.mb;
4207         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4208         /* wwn is WWPN of HBA instance */
4209         mempool_free(mboxq, phba->mbox_mem_pool);
4210         if (phba->sli_rev == LPFC_SLI_REV4)
4211                 return be64_to_cpu(wwn);
4212         else
4213                 return rol64(wwn, 32);
4214 }
4215
4216 /**
4217  * lpfc_create_port - Create an FC port
4218  * @phba: pointer to lpfc hba data structure.
4219  * @instance: a unique integer ID to this FC port.
4220  * @dev: pointer to the device data structure.
4221  *
4222  * This routine creates a FC port for the upper layer protocol. The FC port
4223  * can be created on top of either a physical port or a virtual port provided
4224  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4225  * and associates the FC port created before adding the shost into the SCSI
4226  * layer.
4227  *
4228  * Return codes
4229  *   @vport - pointer to the virtual N_Port data structure.
4230  *   NULL - port create failed.
4231  **/
4232 struct lpfc_vport *
4233 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4234 {
4235         struct lpfc_vport *vport;
4236         struct Scsi_Host  *shost = NULL;
4237         int error = 0;
4238         int i;
4239         uint64_t wwn;
4240         bool use_no_reset_hba = false;
4241         int rc;
4242
4243         if (lpfc_no_hba_reset_cnt) {
4244                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4245                     dev == &phba->pcidev->dev) {
4246                         /* Reset the port first */
4247                         lpfc_sli_brdrestart(phba);
4248                         rc = lpfc_sli_chipset_init(phba);
4249                         if (rc)
4250                                 return NULL;
4251                 }
4252                 wwn = lpfc_get_wwpn(phba);
4253         }
4254
4255         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4256                 if (wwn == lpfc_no_hba_reset[i]) {
4257                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4258                                         "6020 Setting use_no_reset port=%llx\n",
4259                                         wwn);
4260                         use_no_reset_hba = true;
4261                         break;
4262                 }
4263         }
4264
4265         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4266                 if (dev != &phba->pcidev->dev) {
4267                         shost = scsi_host_alloc(&lpfc_vport_template,
4268                                                 sizeof(struct lpfc_vport));
4269                 } else {
4270                         if (!use_no_reset_hba)
4271                                 shost = scsi_host_alloc(&lpfc_template,
4272                                                 sizeof(struct lpfc_vport));
4273                         else
4274                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4275                                                 sizeof(struct lpfc_vport));
4276                 }
4277         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4278                 shost = scsi_host_alloc(&lpfc_template_nvme,
4279                                         sizeof(struct lpfc_vport));
4280         }
4281         if (!shost)
4282                 goto out;
4283
4284         vport = (struct lpfc_vport *) shost->hostdata;
4285         vport->phba = phba;
4286         vport->load_flag |= FC_LOADING;
4287         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4288         vport->fc_rscn_flush = 0;
4289         lpfc_get_vport_cfgparam(vport);
4290
4291         /* Adjust value in vport */
4292         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4293
4294         shost->unique_id = instance;
4295         shost->max_id = LPFC_MAX_TARGET;
4296         shost->max_lun = vport->cfg_max_luns;
4297         shost->this_id = -1;
4298         shost->max_cmd_len = 16;
4299
4300         if (phba->sli_rev == LPFC_SLI_REV4) {
4301                 if (!phba->cfg_fcp_mq_threshold ||
4302                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4303                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4304
4305                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4306                                             phba->cfg_fcp_mq_threshold);
4307
4308                 shost->dma_boundary =
4309                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4310
4311                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4312                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4313                 else
4314                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4315         } else
4316                 /* SLI-3 has a limited number of hardware queues (3),
4317                  * thus there is only one for FCP processing.
4318                  */
4319                 shost->nr_hw_queues = 1;
4320
4321         /*
4322          * Set initial can_queue value since 0 is no longer supported and
4323          * scsi_add_host will fail. This will be adjusted later based on the
4324          * max xri value determined in hba setup.
4325          */
4326         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4327         if (dev != &phba->pcidev->dev) {
4328                 shost->transportt = lpfc_vport_transport_template;
4329                 vport->port_type = LPFC_NPIV_PORT;
4330         } else {
4331                 shost->transportt = lpfc_transport_template;
4332                 vport->port_type = LPFC_PHYSICAL_PORT;
4333         }
4334
4335         /* Initialize all internally managed lists. */
4336         INIT_LIST_HEAD(&vport->fc_nodes);
4337         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4338         spin_lock_init(&vport->work_port_lock);
4339
4340         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4341
4342         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4343
4344         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4345
4346         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4347                 lpfc_setup_bg(phba, shost);
4348
4349         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4350         if (error)
4351                 goto out_put_shost;
4352
4353         spin_lock_irq(&phba->port_list_lock);
4354         list_add_tail(&vport->listentry, &phba->port_list);
4355         spin_unlock_irq(&phba->port_list_lock);
4356         return vport;
4357
4358 out_put_shost:
4359         scsi_host_put(shost);
4360 out:
4361         return NULL;
4362 }
4363
4364 /**
4365  * destroy_port -  destroy an FC port
4366  * @vport: pointer to an lpfc virtual N_Port data structure.
4367  *
4368  * This routine destroys a FC port from the upper layer protocol. All the
4369  * resources associated with the port are released.
4370  **/
4371 void
4372 destroy_port(struct lpfc_vport *vport)
4373 {
4374         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4375         struct lpfc_hba  *phba = vport->phba;
4376
4377         lpfc_debugfs_terminate(vport);
4378         fc_remove_host(shost);
4379         scsi_remove_host(shost);
4380
4381         spin_lock_irq(&phba->port_list_lock);
4382         list_del_init(&vport->listentry);
4383         spin_unlock_irq(&phba->port_list_lock);
4384
4385         lpfc_cleanup(vport);
4386         return;
4387 }
4388
4389 /**
4390  * lpfc_get_instance - Get a unique integer ID
4391  *
4392  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4393  * uses the kernel idr facility to perform the task.
4394  *
4395  * Return codes:
4396  *   instance - a unique integer ID allocated as the new instance.
4397  *   -1 - lpfc get instance failed.
4398  **/
4399 int
4400 lpfc_get_instance(void)
4401 {
4402         int ret;
4403
4404         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4405         return ret < 0 ? -1 : ret;
4406 }
4407
4408 /**
4409  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4410  * @shost: pointer to SCSI host data structure.
4411  * @time: elapsed time of the scan in jiffies.
4412  *
4413  * This routine is called by the SCSI layer with a SCSI host to determine
4414  * whether the scan host is finished.
4415  *
4416  * Note: there is no scan_start function as adapter initialization will have
4417  * asynchronously kicked off the link initialization.
4418  *
4419  * Return codes
4420  *   0 - SCSI host scan is not over yet.
4421  *   1 - SCSI host scan is over.
4422  **/
4423 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4424 {
4425         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4426         struct lpfc_hba   *phba = vport->phba;
4427         int stat = 0;
4428
4429         spin_lock_irq(shost->host_lock);
4430
4431         if (vport->load_flag & FC_UNLOADING) {
4432                 stat = 1;
4433                 goto finished;
4434         }
4435         if (time >= msecs_to_jiffies(30 * 1000)) {
4436                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4437                                 "0461 Scanning longer than 30 "
4438                                 "seconds.  Continuing initialization\n");
4439                 stat = 1;
4440                 goto finished;
4441         }
4442         if (time >= msecs_to_jiffies(15 * 1000) &&
4443             phba->link_state <= LPFC_LINK_DOWN) {
4444                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4445                                 "0465 Link down longer than 15 "
4446                                 "seconds.  Continuing initialization\n");
4447                 stat = 1;
4448                 goto finished;
4449         }
4450
4451         if (vport->port_state != LPFC_VPORT_READY)
4452                 goto finished;
4453         if (vport->num_disc_nodes || vport->fc_prli_sent)
4454                 goto finished;
4455         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4456                 goto finished;
4457         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4458                 goto finished;
4459
4460         stat = 1;
4461
4462 finished:
4463         spin_unlock_irq(shost->host_lock);
4464         return stat;
4465 }
4466
4467 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4468 {
4469         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4470         struct lpfc_hba   *phba = vport->phba;
4471
4472         fc_host_supported_speeds(shost) = 0;
4473         if (phba->lmt & LMT_128Gb)
4474                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4475         if (phba->lmt & LMT_64Gb)
4476                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4477         if (phba->lmt & LMT_32Gb)
4478                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4479         if (phba->lmt & LMT_16Gb)
4480                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4481         if (phba->lmt & LMT_10Gb)
4482                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4483         if (phba->lmt & LMT_8Gb)
4484                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4485         if (phba->lmt & LMT_4Gb)
4486                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4487         if (phba->lmt & LMT_2Gb)
4488                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4489         if (phba->lmt & LMT_1Gb)
4490                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4491 }
4492
4493 /**
4494  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4495  * @shost: pointer to SCSI host data structure.
4496  *
4497  * This routine initializes a given SCSI host attributes on a FC port. The
4498  * SCSI host can be either on top of a physical port or a virtual port.
4499  **/
4500 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4501 {
4502         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4503         struct lpfc_hba   *phba = vport->phba;
4504         /*
4505          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4506          */
4507
4508         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4509         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4510         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4511
4512         memset(fc_host_supported_fc4s(shost), 0,
4513                sizeof(fc_host_supported_fc4s(shost)));
4514         fc_host_supported_fc4s(shost)[2] = 1;
4515         fc_host_supported_fc4s(shost)[7] = 1;
4516
4517         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4518                                  sizeof fc_host_symbolic_name(shost));
4519
4520         lpfc_host_supported_speeds_set(shost);
4521
4522         fc_host_maxframe_size(shost) =
4523                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4524                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4525
4526         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4527
4528         /* This value is also unchanging */
4529         memset(fc_host_active_fc4s(shost), 0,
4530                sizeof(fc_host_active_fc4s(shost)));
4531         fc_host_active_fc4s(shost)[2] = 1;
4532         fc_host_active_fc4s(shost)[7] = 1;
4533
4534         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4535         spin_lock_irq(shost->host_lock);
4536         vport->load_flag &= ~FC_LOADING;
4537         spin_unlock_irq(shost->host_lock);
4538 }
4539
4540 /**
4541  * lpfc_stop_port_s3 - Stop SLI3 device port
4542  * @phba: pointer to lpfc hba data structure.
4543  *
4544  * This routine is invoked to stop an SLI3 device port, it stops the device
4545  * from generating interrupts and stops the device driver's timers for the
4546  * device.
4547  **/
4548 static void
4549 lpfc_stop_port_s3(struct lpfc_hba *phba)
4550 {
4551         /* Clear all interrupt enable conditions */
4552         writel(0, phba->HCregaddr);
4553         readl(phba->HCregaddr); /* flush */
4554         /* Clear all pending interrupts */
4555         writel(0xffffffff, phba->HAregaddr);
4556         readl(phba->HAregaddr); /* flush */
4557
4558         /* Reset some HBA SLI setup states */
4559         lpfc_stop_hba_timers(phba);
4560         phba->pport->work_port_events = 0;
4561 }
4562
4563 /**
4564  * lpfc_stop_port_s4 - Stop SLI4 device port
4565  * @phba: pointer to lpfc hba data structure.
4566  *
4567  * This routine is invoked to stop an SLI4 device port, it stops the device
4568  * from generating interrupts and stops the device driver's timers for the
4569  * device.
4570  **/
4571 static void
4572 lpfc_stop_port_s4(struct lpfc_hba *phba)
4573 {
4574         /* Reset some HBA SLI4 setup states */
4575         lpfc_stop_hba_timers(phba);
4576         if (phba->pport)
4577                 phba->pport->work_port_events = 0;
4578         phba->sli4_hba.intr_enable = 0;
4579 }
4580
4581 /**
4582  * lpfc_stop_port - Wrapper function for stopping hba port
4583  * @phba: Pointer to HBA context object.
4584  *
4585  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4586  * the API jump table function pointer from the lpfc_hba struct.
4587  **/
4588 void
4589 lpfc_stop_port(struct lpfc_hba *phba)
4590 {
4591         phba->lpfc_stop_port(phba);
4592
4593         if (phba->wq)
4594                 flush_workqueue(phba->wq);
4595 }
4596
4597 /**
4598  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4599  * @phba: Pointer to hba for which this call is being executed.
4600  *
4601  * This routine starts the timer waiting for the FCF rediscovery to complete.
4602  **/
4603 void
4604 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4605 {
4606         unsigned long fcf_redisc_wait_tmo =
4607                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4608         /* Start fcf rediscovery wait period timer */
4609         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4610         spin_lock_irq(&phba->hbalock);
4611         /* Allow action to new fcf asynchronous event */
4612         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4613         /* Mark the FCF rediscovery pending state */
4614         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4615         spin_unlock_irq(&phba->hbalock);
4616 }
4617
4618 /**
4619  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4620  * @ptr: Map to lpfc_hba data structure pointer.
4621  *
4622  * This routine is invoked when waiting for FCF table rediscover has been
4623  * timed out. If new FCF record(s) has (have) been discovered during the
4624  * wait period, a new FCF event shall be added to the FCOE async event
4625  * list, and then worker thread shall be waked up for processing from the
4626  * worker thread context.
4627  **/
4628 static void
4629 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4630 {
4631         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4632
4633         /* Don't send FCF rediscovery event if timer cancelled */
4634         spin_lock_irq(&phba->hbalock);
4635         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4636                 spin_unlock_irq(&phba->hbalock);
4637                 return;
4638         }
4639         /* Clear FCF rediscovery timer pending flag */
4640         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4641         /* FCF rediscovery event to worker thread */
4642         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4643         spin_unlock_irq(&phba->hbalock);
4644         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4645                         "2776 FCF rediscover quiescent timer expired\n");
4646         /* wake up worker thread */
4647         lpfc_worker_wake_up(phba);
4648 }
4649
4650 /**
4651  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4652  * @phba: pointer to lpfc hba data structure.
4653  * @acqe_link: pointer to the async link completion queue entry.
4654  *
4655  * This routine is to parse the SLI4 link-attention link fault code.
4656  **/
4657 static void
4658 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4659                            struct lpfc_acqe_link *acqe_link)
4660 {
4661         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4662         case LPFC_ASYNC_LINK_FAULT_NONE:
4663         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4664         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4665         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4666                 break;
4667         default:
4668                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4669                                 "0398 Unknown link fault code: x%x\n",
4670                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4671                 break;
4672         }
4673 }
4674
4675 /**
4676  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4677  * @phba: pointer to lpfc hba data structure.
4678  * @acqe_link: pointer to the async link completion queue entry.
4679  *
4680  * This routine is to parse the SLI4 link attention type and translate it
4681  * into the base driver's link attention type coding.
4682  *
4683  * Return: Link attention type in terms of base driver's coding.
4684  **/
4685 static uint8_t
4686 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4687                           struct lpfc_acqe_link *acqe_link)
4688 {
4689         uint8_t att_type;
4690
4691         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4692         case LPFC_ASYNC_LINK_STATUS_DOWN:
4693         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4694                 att_type = LPFC_ATT_LINK_DOWN;
4695                 break;
4696         case LPFC_ASYNC_LINK_STATUS_UP:
4697                 /* Ignore physical link up events - wait for logical link up */
4698                 att_type = LPFC_ATT_RESERVED;
4699                 break;
4700         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4701                 att_type = LPFC_ATT_LINK_UP;
4702                 break;
4703         default:
4704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4705                                 "0399 Invalid link attention type: x%x\n",
4706                                 bf_get(lpfc_acqe_link_status, acqe_link));
4707                 att_type = LPFC_ATT_RESERVED;
4708                 break;
4709         }
4710         return att_type;
4711 }
4712
4713 /**
4714  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4715  * @phba: pointer to lpfc hba data structure.
4716  *
4717  * This routine is to get an SLI3 FC port's link speed in Mbps.
4718  *
4719  * Return: link speed in terms of Mbps.
4720  **/
4721 uint32_t
4722 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4723 {
4724         uint32_t link_speed;
4725
4726         if (!lpfc_is_link_up(phba))
4727                 return 0;
4728
4729         if (phba->sli_rev <= LPFC_SLI_REV3) {
4730                 switch (phba->fc_linkspeed) {
4731                 case LPFC_LINK_SPEED_1GHZ:
4732                         link_speed = 1000;
4733                         break;
4734                 case LPFC_LINK_SPEED_2GHZ:
4735                         link_speed = 2000;
4736                         break;
4737                 case LPFC_LINK_SPEED_4GHZ:
4738                         link_speed = 4000;
4739                         break;
4740                 case LPFC_LINK_SPEED_8GHZ:
4741                         link_speed = 8000;
4742                         break;
4743                 case LPFC_LINK_SPEED_10GHZ:
4744                         link_speed = 10000;
4745                         break;
4746                 case LPFC_LINK_SPEED_16GHZ:
4747                         link_speed = 16000;
4748                         break;
4749                 default:
4750                         link_speed = 0;
4751                 }
4752         } else {
4753                 if (phba->sli4_hba.link_state.logical_speed)
4754                         link_speed =
4755                               phba->sli4_hba.link_state.logical_speed;
4756                 else
4757                         link_speed = phba->sli4_hba.link_state.speed;
4758         }
4759         return link_speed;
4760 }
4761
4762 /**
4763  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4764  * @phba: pointer to lpfc hba data structure.
4765  * @evt_code: asynchronous event code.
4766  * @speed_code: asynchronous event link speed code.
4767  *
4768  * This routine is to parse the giving SLI4 async event link speed code into
4769  * value of Mbps for the link speed.
4770  *
4771  * Return: link speed in terms of Mbps.
4772  **/
4773 static uint32_t
4774 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4775                            uint8_t speed_code)
4776 {
4777         uint32_t port_speed;
4778
4779         switch (evt_code) {
4780         case LPFC_TRAILER_CODE_LINK:
4781                 switch (speed_code) {
4782                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4783                         port_speed = 0;
4784                         break;
4785                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4786                         port_speed = 10;
4787                         break;
4788                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4789                         port_speed = 100;
4790                         break;
4791                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4792                         port_speed = 1000;
4793                         break;
4794                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4795                         port_speed = 10000;
4796                         break;
4797                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4798                         port_speed = 20000;
4799                         break;
4800                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4801                         port_speed = 25000;
4802                         break;
4803                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4804                         port_speed = 40000;
4805                         break;
4806                 default:
4807                         port_speed = 0;
4808                 }
4809                 break;
4810         case LPFC_TRAILER_CODE_FC:
4811                 switch (speed_code) {
4812                 case LPFC_FC_LA_SPEED_UNKNOWN:
4813                         port_speed = 0;
4814                         break;
4815                 case LPFC_FC_LA_SPEED_1G:
4816                         port_speed = 1000;
4817                         break;
4818                 case LPFC_FC_LA_SPEED_2G:
4819                         port_speed = 2000;
4820                         break;
4821                 case LPFC_FC_LA_SPEED_4G:
4822                         port_speed = 4000;
4823                         break;
4824                 case LPFC_FC_LA_SPEED_8G:
4825                         port_speed = 8000;
4826                         break;
4827                 case LPFC_FC_LA_SPEED_10G:
4828                         port_speed = 10000;
4829                         break;
4830                 case LPFC_FC_LA_SPEED_16G:
4831                         port_speed = 16000;
4832                         break;
4833                 case LPFC_FC_LA_SPEED_32G:
4834                         port_speed = 32000;
4835                         break;
4836                 case LPFC_FC_LA_SPEED_64G:
4837                         port_speed = 64000;
4838                         break;
4839                 case LPFC_FC_LA_SPEED_128G:
4840                         port_speed = 128000;
4841                         break;
4842                 default:
4843                         port_speed = 0;
4844                 }
4845                 break;
4846         default:
4847                 port_speed = 0;
4848         }
4849         return port_speed;
4850 }
4851
4852 /**
4853  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4854  * @phba: pointer to lpfc hba data structure.
4855  * @acqe_link: pointer to the async link completion queue entry.
4856  *
4857  * This routine is to handle the SLI4 asynchronous FCoE link event.
4858  **/
4859 static void
4860 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4861                          struct lpfc_acqe_link *acqe_link)
4862 {
4863         struct lpfc_dmabuf *mp;
4864         LPFC_MBOXQ_t *pmb;
4865         MAILBOX_t *mb;
4866         struct lpfc_mbx_read_top *la;
4867         uint8_t att_type;
4868         int rc;
4869
4870         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4871         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4872                 return;
4873         phba->fcoe_eventtag = acqe_link->event_tag;
4874         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4875         if (!pmb) {
4876                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4877                                 "0395 The mboxq allocation failed\n");
4878                 return;
4879         }
4880         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4881         if (!mp) {
4882                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4883                                 "0396 The lpfc_dmabuf allocation failed\n");
4884                 goto out_free_pmb;
4885         }
4886         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4887         if (!mp->virt) {
4888                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4889                                 "0397 The mbuf allocation failed\n");
4890                 goto out_free_dmabuf;
4891         }
4892
4893         /* Cleanup any outstanding ELS commands */
4894         lpfc_els_flush_all_cmd(phba);
4895
4896         /* Block ELS IOCBs until we have done process link event */
4897         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4898
4899         /* Update link event statistics */
4900         phba->sli.slistat.link_event++;
4901
4902         /* Create lpfc_handle_latt mailbox command from link ACQE */
4903         lpfc_read_topology(phba, pmb, mp);
4904         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4905         pmb->vport = phba->pport;
4906
4907         /* Keep the link status for extra SLI4 state machine reference */
4908         phba->sli4_hba.link_state.speed =
4909                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4910                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4911         phba->sli4_hba.link_state.duplex =
4912                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4913         phba->sli4_hba.link_state.status =
4914                                 bf_get(lpfc_acqe_link_status, acqe_link);
4915         phba->sli4_hba.link_state.type =
4916                                 bf_get(lpfc_acqe_link_type, acqe_link);
4917         phba->sli4_hba.link_state.number =
4918                                 bf_get(lpfc_acqe_link_number, acqe_link);
4919         phba->sli4_hba.link_state.fault =
4920                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4921         phba->sli4_hba.link_state.logical_speed =
4922                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4923
4924         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4925                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4926                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4927                         "Logical speed:%dMbps Fault:%d\n",
4928                         phba->sli4_hba.link_state.speed,
4929                         phba->sli4_hba.link_state.topology,
4930                         phba->sli4_hba.link_state.status,
4931                         phba->sli4_hba.link_state.type,
4932                         phba->sli4_hba.link_state.number,
4933                         phba->sli4_hba.link_state.logical_speed,
4934                         phba->sli4_hba.link_state.fault);
4935         /*
4936          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4937          * topology info. Note: Optional for non FC-AL ports.
4938          */
4939         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4940                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4941                 if (rc == MBX_NOT_FINISHED)
4942                         goto out_free_dmabuf;
4943                 return;
4944         }
4945         /*
4946          * For FCoE Mode: fill in all the topology information we need and call
4947          * the READ_TOPOLOGY completion routine to continue without actually
4948          * sending the READ_TOPOLOGY mailbox command to the port.
4949          */
4950         /* Initialize completion status */
4951         mb = &pmb->u.mb;
4952         mb->mbxStatus = MBX_SUCCESS;
4953
4954         /* Parse port fault information field */
4955         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4956
4957         /* Parse and translate link attention fields */
4958         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4959         la->eventTag = acqe_link->event_tag;
4960         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4961         bf_set(lpfc_mbx_read_top_link_spd, la,
4962                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4963
4964         /* Fake the the following irrelvant fields */
4965         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4966         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4967         bf_set(lpfc_mbx_read_top_il, la, 0);
4968         bf_set(lpfc_mbx_read_top_pb, la, 0);
4969         bf_set(lpfc_mbx_read_top_fa, la, 0);
4970         bf_set(lpfc_mbx_read_top_mm, la, 0);
4971
4972         /* Invoke the lpfc_handle_latt mailbox command callback function */
4973         lpfc_mbx_cmpl_read_topology(phba, pmb);
4974
4975         return;
4976
4977 out_free_dmabuf:
4978         kfree(mp);
4979 out_free_pmb:
4980         mempool_free(pmb, phba->mbox_mem_pool);
4981 }
4982
4983 /**
4984  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4985  * topology.
4986  * @phba: pointer to lpfc hba data structure.
4987  * @evt_code: asynchronous event code.
4988  * @speed_code: asynchronous event link speed code.
4989  *
4990  * This routine is to parse the giving SLI4 async event link speed code into
4991  * value of Read topology link speed.
4992  *
4993  * Return: link speed in terms of Read topology.
4994  **/
4995 static uint8_t
4996 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4997 {
4998         uint8_t port_speed;
4999
5000         switch (speed_code) {
5001         case LPFC_FC_LA_SPEED_1G:
5002                 port_speed = LPFC_LINK_SPEED_1GHZ;
5003                 break;
5004         case LPFC_FC_LA_SPEED_2G:
5005                 port_speed = LPFC_LINK_SPEED_2GHZ;
5006                 break;
5007         case LPFC_FC_LA_SPEED_4G:
5008                 port_speed = LPFC_LINK_SPEED_4GHZ;
5009                 break;
5010         case LPFC_FC_LA_SPEED_8G:
5011                 port_speed = LPFC_LINK_SPEED_8GHZ;
5012                 break;
5013         case LPFC_FC_LA_SPEED_16G:
5014                 port_speed = LPFC_LINK_SPEED_16GHZ;
5015                 break;
5016         case LPFC_FC_LA_SPEED_32G:
5017                 port_speed = LPFC_LINK_SPEED_32GHZ;
5018                 break;
5019         case LPFC_FC_LA_SPEED_64G:
5020                 port_speed = LPFC_LINK_SPEED_64GHZ;
5021                 break;
5022         case LPFC_FC_LA_SPEED_128G:
5023                 port_speed = LPFC_LINK_SPEED_128GHZ;
5024                 break;
5025         case LPFC_FC_LA_SPEED_256G:
5026                 port_speed = LPFC_LINK_SPEED_256GHZ;
5027                 break;
5028         default:
5029                 port_speed = 0;
5030                 break;
5031         }
5032
5033         return port_speed;
5034 }
5035
5036 #define trunk_link_status(__idx)\
5037         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5038                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5039                 "Link up" : "Link down") : "NA"
5040 /* Did port __idx reported an error */
5041 #define trunk_port_fault(__idx)\
5042         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5043                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5044
5045 static void
5046 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5047                               struct lpfc_acqe_fc_la *acqe_fc)
5048 {
5049         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5050         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5051
5052         phba->sli4_hba.link_state.speed =
5053                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5054                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5055
5056         phba->sli4_hba.link_state.logical_speed =
5057                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5058         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5059         phba->fc_linkspeed =
5060                  lpfc_async_link_speed_to_read_top(
5061                                 phba,
5062                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5063
5064         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5065                 phba->trunk_link.link0.state =
5066                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5067                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5068                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5069         }
5070         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5071                 phba->trunk_link.link1.state =
5072                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5073                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5074                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5075         }
5076         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5077                 phba->trunk_link.link2.state =
5078                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5079                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5080                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5081         }
5082         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5083                 phba->trunk_link.link3.state =
5084                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5085                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5086                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5087         }
5088
5089         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5090                         "2910 Async FC Trunking Event - Speed:%d\n"
5091                         "\tLogical speed:%d "
5092                         "port0: %s port1: %s port2: %s port3: %s\n",
5093                         phba->sli4_hba.link_state.speed,
5094                         phba->sli4_hba.link_state.logical_speed,
5095                         trunk_link_status(0), trunk_link_status(1),
5096                         trunk_link_status(2), trunk_link_status(3));
5097
5098         if (port_fault)
5099                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5100                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5101                                 /*
5102                                  * SLI-4: We have only 0xA error codes
5103                                  * defined as of now. print an appropriate
5104                                  * message in case driver needs to be updated.
5105                                  */
5106                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5107                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5108                                 trunk_port_fault(0), trunk_port_fault(1),
5109                                 trunk_port_fault(2), trunk_port_fault(3));
5110 }
5111
5112
5113 /**
5114  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5115  * @phba: pointer to lpfc hba data structure.
5116  * @acqe_fc: pointer to the async fc completion queue entry.
5117  *
5118  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5119  * that the event was received and then issue a read_topology mailbox command so
5120  * that the rest of the driver will treat it the same as SLI3.
5121  **/
5122 static void
5123 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5124 {
5125         struct lpfc_dmabuf *mp;
5126         LPFC_MBOXQ_t *pmb;
5127         MAILBOX_t *mb;
5128         struct lpfc_mbx_read_top *la;
5129         int rc;
5130
5131         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5132             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5133                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5134                                 "2895 Non FC link Event detected.(%d)\n",
5135                                 bf_get(lpfc_trailer_type, acqe_fc));
5136                 return;
5137         }
5138
5139         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5140             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5141                 lpfc_update_trunk_link_status(phba, acqe_fc);
5142                 return;
5143         }
5144
5145         /* Keep the link status for extra SLI4 state machine reference */
5146         phba->sli4_hba.link_state.speed =
5147                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5148                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5149         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5150         phba->sli4_hba.link_state.topology =
5151                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5152         phba->sli4_hba.link_state.status =
5153                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5154         phba->sli4_hba.link_state.type =
5155                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5156         phba->sli4_hba.link_state.number =
5157                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5158         phba->sli4_hba.link_state.fault =
5159                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5160
5161         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5162             LPFC_FC_LA_TYPE_LINK_DOWN)
5163                 phba->sli4_hba.link_state.logical_speed = 0;
5164         else if (!phba->sli4_hba.conf_trunk)
5165                 phba->sli4_hba.link_state.logical_speed =
5166                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5167
5168         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5169                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5170                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5171                         "%dMbps Fault:%d\n",
5172                         phba->sli4_hba.link_state.speed,
5173                         phba->sli4_hba.link_state.topology,
5174                         phba->sli4_hba.link_state.status,
5175                         phba->sli4_hba.link_state.type,
5176                         phba->sli4_hba.link_state.number,
5177                         phba->sli4_hba.link_state.logical_speed,
5178                         phba->sli4_hba.link_state.fault);
5179         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5180         if (!pmb) {
5181                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5182                                 "2897 The mboxq allocation failed\n");
5183                 return;
5184         }
5185         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5186         if (!mp) {
5187                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5188                                 "2898 The lpfc_dmabuf allocation failed\n");
5189                 goto out_free_pmb;
5190         }
5191         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5192         if (!mp->virt) {
5193                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5194                                 "2899 The mbuf allocation failed\n");
5195                 goto out_free_dmabuf;
5196         }
5197
5198         /* Cleanup any outstanding ELS commands */
5199         lpfc_els_flush_all_cmd(phba);
5200
5201         /* Block ELS IOCBs until we have done process link event */
5202         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5203
5204         /* Update link event statistics */
5205         phba->sli.slistat.link_event++;
5206
5207         /* Create lpfc_handle_latt mailbox command from link ACQE */
5208         lpfc_read_topology(phba, pmb, mp);
5209         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5210         pmb->vport = phba->pport;
5211
5212         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5213                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5214
5215                 switch (phba->sli4_hba.link_state.status) {
5216                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5217                         phba->link_flag |= LS_MDS_LINK_DOWN;
5218                         break;
5219                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5220                         phba->link_flag |= LS_MDS_LOOPBACK;
5221                         break;
5222                 default:
5223                         break;
5224                 }
5225
5226                 /* Initialize completion status */
5227                 mb = &pmb->u.mb;
5228                 mb->mbxStatus = MBX_SUCCESS;
5229
5230                 /* Parse port fault information field */
5231                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5232
5233                 /* Parse and translate link attention fields */
5234                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5235                 la->eventTag = acqe_fc->event_tag;
5236
5237                 if (phba->sli4_hba.link_state.status ==
5238                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5239                         bf_set(lpfc_mbx_read_top_att_type, la,
5240                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5241                 } else {
5242                         bf_set(lpfc_mbx_read_top_att_type, la,
5243                                LPFC_FC_LA_TYPE_LINK_DOWN);
5244                 }
5245                 /* Invoke the mailbox command callback function */
5246                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5247
5248                 return;
5249         }
5250
5251         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5252         if (rc == MBX_NOT_FINISHED)
5253                 goto out_free_dmabuf;
5254         return;
5255
5256 out_free_dmabuf:
5257         kfree(mp);
5258 out_free_pmb:
5259         mempool_free(pmb, phba->mbox_mem_pool);
5260 }
5261
5262 /**
5263  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5264  * @phba: pointer to lpfc hba data structure.
5265  * @acqe_fc: pointer to the async SLI completion queue entry.
5266  *
5267  * This routine is to handle the SLI4 asynchronous SLI events.
5268  **/
5269 static void
5270 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5271 {
5272         char port_name;
5273         char message[128];
5274         uint8_t status;
5275         uint8_t evt_type;
5276         uint8_t operational = 0;
5277         struct temp_event temp_event_data;
5278         struct lpfc_acqe_misconfigured_event *misconfigured;
5279         struct Scsi_Host  *shost;
5280         struct lpfc_vport **vports;
5281         int rc, i;
5282
5283         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5284
5285         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5286                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
5287                         "x%08x SLI Event Type:%d\n",
5288                         acqe_sli->event_data1, acqe_sli->event_data2,
5289                         evt_type);
5290
5291         port_name = phba->Port[0];
5292         if (port_name == 0x00)
5293                 port_name = '?'; /* get port name is empty */
5294
5295         switch (evt_type) {
5296         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5297                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5298                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5299                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5300
5301                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5302                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5303                                 acqe_sli->event_data1, port_name);
5304
5305                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5306                 shost = lpfc_shost_from_vport(phba->pport);
5307                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5308                                           sizeof(temp_event_data),
5309                                           (char *)&temp_event_data,
5310                                           SCSI_NL_VID_TYPE_PCI
5311                                           | PCI_VENDOR_ID_EMULEX);
5312                 break;
5313         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5314                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5315                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5316                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5317
5318                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5319                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5320                                 acqe_sli->event_data1, port_name);
5321
5322                 shost = lpfc_shost_from_vport(phba->pport);
5323                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5324                                           sizeof(temp_event_data),
5325                                           (char *)&temp_event_data,
5326                                           SCSI_NL_VID_TYPE_PCI
5327                                           | PCI_VENDOR_ID_EMULEX);
5328                 break;
5329         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5330                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5331                                         &acqe_sli->event_data1;
5332
5333                 /* fetch the status for this port */
5334                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5335                 case LPFC_LINK_NUMBER_0:
5336                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5337                                         &misconfigured->theEvent);
5338                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5339                                         &misconfigured->theEvent);
5340                         break;
5341                 case LPFC_LINK_NUMBER_1:
5342                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5343                                         &misconfigured->theEvent);
5344                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5345                                         &misconfigured->theEvent);
5346                         break;
5347                 case LPFC_LINK_NUMBER_2:
5348                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5349                                         &misconfigured->theEvent);
5350                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5351                                         &misconfigured->theEvent);
5352                         break;
5353                 case LPFC_LINK_NUMBER_3:
5354                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5355                                         &misconfigured->theEvent);
5356                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5357                                         &misconfigured->theEvent);
5358                         break;
5359                 default:
5360                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5361                                         "3296 "
5362                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5363                                         "event: Invalid link %d",
5364                                         phba->sli4_hba.lnk_info.lnk_no);
5365                         return;
5366                 }
5367
5368                 /* Skip if optic state unchanged */
5369                 if (phba->sli4_hba.lnk_info.optic_state == status)
5370                         return;
5371
5372                 switch (status) {
5373                 case LPFC_SLI_EVENT_STATUS_VALID:
5374                         sprintf(message, "Physical Link is functional");
5375                         break;
5376                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5377                         sprintf(message, "Optics faulted/incorrectly "
5378                                 "installed/not installed - Reseat optics, "
5379                                 "if issue not resolved, replace.");
5380                         break;
5381                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5382                         sprintf(message,
5383                                 "Optics of two types installed - Remove one "
5384                                 "optic or install matching pair of optics.");
5385                         break;
5386                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5387                         sprintf(message, "Incompatible optics - Replace with "
5388                                 "compatible optics for card to function.");
5389                         break;
5390                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5391                         sprintf(message, "Unqualified optics - Replace with "
5392                                 "Avago optics for Warranty and Technical "
5393                                 "Support - Link is%s operational",
5394                                 (operational) ? " not" : "");
5395                         break;
5396                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5397                         sprintf(message, "Uncertified optics - Replace with "
5398                                 "Avago-certified optics to enable link "
5399                                 "operation - Link is%s operational",
5400                                 (operational) ? " not" : "");
5401                         break;
5402                 default:
5403                         /* firmware is reporting a status we don't know about */
5404                         sprintf(message, "Unknown event status x%02x", status);
5405                         break;
5406                 }
5407
5408                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5409                 rc = lpfc_sli4_read_config(phba);
5410                 if (rc) {
5411                         phba->lmt = 0;
5412                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5413                                         "3194 Unable to retrieve supported "
5414                                         "speeds, rc = 0x%x\n", rc);
5415                 }
5416                 vports = lpfc_create_vport_work_array(phba);
5417                 if (vports != NULL) {
5418                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5419                                         i++) {
5420                                 shost = lpfc_shost_from_vport(vports[i]);
5421                                 lpfc_host_supported_speeds_set(shost);
5422                         }
5423                 }
5424                 lpfc_destroy_vport_work_array(phba, vports);
5425
5426                 phba->sli4_hba.lnk_info.optic_state = status;
5427                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5428                                 "3176 Port Name %c %s\n", port_name, message);
5429                 break;
5430         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5431                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5432                                 "3192 Remote DPort Test Initiated - "
5433                                 "Event Data1:x%08x Event Data2: x%08x\n",
5434                                 acqe_sli->event_data1, acqe_sli->event_data2);
5435                 break;
5436         default:
5437                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5438                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5439                                 "x%08x SLI Event Type:%d\n",
5440                                 acqe_sli->event_data1, acqe_sli->event_data2,
5441                                 evt_type);
5442                 break;
5443         }
5444 }
5445
5446 /**
5447  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5448  * @vport: pointer to vport data structure.
5449  *
5450  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5451  * response to a CVL event.
5452  *
5453  * Return the pointer to the ndlp with the vport if successful, otherwise
5454  * return NULL.
5455  **/
5456 static struct lpfc_nodelist *
5457 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5458 {
5459         struct lpfc_nodelist *ndlp;
5460         struct Scsi_Host *shost;
5461         struct lpfc_hba *phba;
5462
5463         if (!vport)
5464                 return NULL;
5465         phba = vport->phba;
5466         if (!phba)
5467                 return NULL;
5468         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5469         if (!ndlp) {
5470                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5471                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5472                 if (!ndlp)
5473                         return 0;
5474                 /* Set the node type */
5475                 ndlp->nlp_type |= NLP_FABRIC;
5476                 /* Put ndlp onto node list */
5477                 lpfc_enqueue_node(vport, ndlp);
5478         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5479                 /* re-setup ndlp without removing from node list */
5480                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5481                 if (!ndlp)
5482                         return 0;
5483         }
5484         if ((phba->pport->port_state < LPFC_FLOGI) &&
5485                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5486                 return NULL;
5487         /* If virtual link is not yet instantiated ignore CVL */
5488         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5489                 && (vport->port_state != LPFC_VPORT_FAILED))
5490                 return NULL;
5491         shost = lpfc_shost_from_vport(vport);
5492         if (!shost)
5493                 return NULL;
5494         lpfc_linkdown_port(vport);
5495         lpfc_cleanup_pending_mbox(vport);
5496         spin_lock_irq(shost->host_lock);
5497         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5498         spin_unlock_irq(shost->host_lock);
5499
5500         return ndlp;
5501 }
5502
5503 /**
5504  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5505  * @vport: pointer to lpfc hba data structure.
5506  *
5507  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5508  * response to a FCF dead event.
5509  **/
5510 static void
5511 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5512 {
5513         struct lpfc_vport **vports;
5514         int i;
5515
5516         vports = lpfc_create_vport_work_array(phba);
5517         if (vports)
5518                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5519                         lpfc_sli4_perform_vport_cvl(vports[i]);
5520         lpfc_destroy_vport_work_array(phba, vports);
5521 }
5522
5523 /**
5524  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5525  * @phba: pointer to lpfc hba data structure.
5526  * @acqe_link: pointer to the async fcoe completion queue entry.
5527  *
5528  * This routine is to handle the SLI4 asynchronous fcoe event.
5529  **/
5530 static void
5531 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5532                         struct lpfc_acqe_fip *acqe_fip)
5533 {
5534         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5535         int rc;
5536         struct lpfc_vport *vport;
5537         struct lpfc_nodelist *ndlp;
5538         struct Scsi_Host  *shost;
5539         int active_vlink_present;
5540         struct lpfc_vport **vports;
5541         int i;
5542
5543         phba->fc_eventTag = acqe_fip->event_tag;
5544         phba->fcoe_eventtag = acqe_fip->event_tag;
5545         switch (event_type) {
5546         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5547         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5548                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5549                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5550                                         LOG_DISCOVERY,
5551                                         "2546 New FCF event, evt_tag:x%x, "
5552                                         "index:x%x\n",
5553                                         acqe_fip->event_tag,
5554                                         acqe_fip->index);
5555                 else
5556                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5557                                         LOG_DISCOVERY,
5558                                         "2788 FCF param modified event, "
5559                                         "evt_tag:x%x, index:x%x\n",
5560                                         acqe_fip->event_tag,
5561                                         acqe_fip->index);
5562                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5563                         /*
5564                          * During period of FCF discovery, read the FCF
5565                          * table record indexed by the event to update
5566                          * FCF roundrobin failover eligible FCF bmask.
5567                          */
5568                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5569                                         LOG_DISCOVERY,
5570                                         "2779 Read FCF (x%x) for updating "
5571                                         "roundrobin FCF failover bmask\n",
5572                                         acqe_fip->index);
5573                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5574                 }
5575
5576                 /* If the FCF discovery is in progress, do nothing. */
5577                 spin_lock_irq(&phba->hbalock);
5578                 if (phba->hba_flag & FCF_TS_INPROG) {
5579                         spin_unlock_irq(&phba->hbalock);
5580                         break;
5581                 }
5582                 /* If fast FCF failover rescan event is pending, do nothing */
5583                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5584                         spin_unlock_irq(&phba->hbalock);
5585                         break;
5586                 }
5587
5588                 /* If the FCF has been in discovered state, do nothing. */
5589                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5590                         spin_unlock_irq(&phba->hbalock);
5591                         break;
5592                 }
5593                 spin_unlock_irq(&phba->hbalock);
5594
5595                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5596                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5597                                 "2770 Start FCF table scan per async FCF "
5598                                 "event, evt_tag:x%x, index:x%x\n",
5599                                 acqe_fip->event_tag, acqe_fip->index);
5600                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5601                                                      LPFC_FCOE_FCF_GET_FIRST);
5602                 if (rc)
5603                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5604                                         "2547 Issue FCF scan read FCF mailbox "
5605                                         "command failed (x%x)\n", rc);
5606                 break;
5607
5608         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5609                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5610                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5611                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5612                         acqe_fip->event_tag);
5613                 break;
5614
5615         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5616                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5617                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5618                         "2549 FCF (x%x) disconnected from network, "
5619                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5620                 /*
5621                  * If we are in the middle of FCF failover process, clear
5622                  * the corresponding FCF bit in the roundrobin bitmap.
5623                  */
5624                 spin_lock_irq(&phba->hbalock);
5625                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5626                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5627                         spin_unlock_irq(&phba->hbalock);
5628                         /* Update FLOGI FCF failover eligible FCF bmask */
5629                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5630                         break;
5631                 }
5632                 spin_unlock_irq(&phba->hbalock);
5633
5634                 /* If the event is not for currently used fcf do nothing */
5635                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5636                         break;
5637
5638                 /*
5639                  * Otherwise, request the port to rediscover the entire FCF
5640                  * table for a fast recovery from case that the current FCF
5641                  * is no longer valid as we are not in the middle of FCF
5642                  * failover process already.
5643                  */
5644                 spin_lock_irq(&phba->hbalock);
5645                 /* Mark the fast failover process in progress */
5646                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5647                 spin_unlock_irq(&phba->hbalock);
5648
5649                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5650                                 "2771 Start FCF fast failover process due to "
5651                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5652                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5653                 rc = lpfc_sli4_redisc_fcf_table(phba);
5654                 if (rc) {
5655                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5656                                         LOG_DISCOVERY,
5657                                         "2772 Issue FCF rediscover mailbox "
5658                                         "command failed, fail through to FCF "
5659                                         "dead event\n");
5660                         spin_lock_irq(&phba->hbalock);
5661                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5662                         spin_unlock_irq(&phba->hbalock);
5663                         /*
5664                          * Last resort will fail over by treating this
5665                          * as a link down to FCF registration.
5666                          */
5667                         lpfc_sli4_fcf_dead_failthrough(phba);
5668                 } else {
5669                         /* Reset FCF roundrobin bmask for new discovery */
5670                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5671                         /*
5672                          * Handling fast FCF failover to a DEAD FCF event is
5673                          * considered equalivant to receiving CVL to all vports.
5674                          */
5675                         lpfc_sli4_perform_all_vport_cvl(phba);
5676                 }
5677                 break;
5678         case LPFC_FIP_EVENT_TYPE_CVL:
5679                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5680                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5681                         "2718 Clear Virtual Link Received for VPI 0x%x"
5682                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5683
5684                 vport = lpfc_find_vport_by_vpid(phba,
5685                                                 acqe_fip->index);
5686                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5687                 if (!ndlp)
5688                         break;
5689                 active_vlink_present = 0;
5690
5691                 vports = lpfc_create_vport_work_array(phba);
5692                 if (vports) {
5693                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5694                                         i++) {
5695                                 if ((!(vports[i]->fc_flag &
5696                                         FC_VPORT_CVL_RCVD)) &&
5697                                         (vports[i]->port_state > LPFC_FDISC)) {
5698                                         active_vlink_present = 1;
5699                                         break;
5700                                 }
5701                         }
5702                         lpfc_destroy_vport_work_array(phba, vports);
5703                 }
5704
5705                 /*
5706                  * Don't re-instantiate if vport is marked for deletion.
5707                  * If we are here first then vport_delete is going to wait
5708                  * for discovery to complete.
5709                  */
5710                 if (!(vport->load_flag & FC_UNLOADING) &&
5711                                         active_vlink_present) {
5712                         /*
5713                          * If there are other active VLinks present,
5714                          * re-instantiate the Vlink using FDISC.
5715                          */
5716                         mod_timer(&ndlp->nlp_delayfunc,
5717                                   jiffies + msecs_to_jiffies(1000));
5718                         shost = lpfc_shost_from_vport(vport);
5719                         spin_lock_irq(shost->host_lock);
5720                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5721                         spin_unlock_irq(shost->host_lock);
5722                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5723                         vport->port_state = LPFC_FDISC;
5724                 } else {
5725                         /*
5726                          * Otherwise, we request port to rediscover
5727                          * the entire FCF table for a fast recovery
5728                          * from possible case that the current FCF
5729                          * is no longer valid if we are not already
5730                          * in the FCF failover process.
5731                          */
5732                         spin_lock_irq(&phba->hbalock);
5733                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5734                                 spin_unlock_irq(&phba->hbalock);
5735                                 break;
5736                         }
5737                         /* Mark the fast failover process in progress */
5738                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5739                         spin_unlock_irq(&phba->hbalock);
5740                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5741                                         LOG_DISCOVERY,
5742                                         "2773 Start FCF failover per CVL, "
5743                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5744                         rc = lpfc_sli4_redisc_fcf_table(phba);
5745                         if (rc) {
5746                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5747                                                 LOG_DISCOVERY,
5748                                                 "2774 Issue FCF rediscover "
5749                                                 "mailbox command failed, "
5750                                                 "through to CVL event\n");
5751                                 spin_lock_irq(&phba->hbalock);
5752                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5753                                 spin_unlock_irq(&phba->hbalock);
5754                                 /*
5755                                  * Last resort will be re-try on the
5756                                  * the current registered FCF entry.
5757                                  */
5758                                 lpfc_retry_pport_discovery(phba);
5759                         } else
5760                                 /*
5761                                  * Reset FCF roundrobin bmask for new
5762                                  * discovery.
5763                                  */
5764                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5765                 }
5766                 break;
5767         default:
5768                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5769                         "0288 Unknown FCoE event type 0x%x event tag "
5770                         "0x%x\n", event_type, acqe_fip->event_tag);
5771                 break;
5772         }
5773 }
5774
5775 /**
5776  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5777  * @phba: pointer to lpfc hba data structure.
5778  * @acqe_link: pointer to the async dcbx completion queue entry.
5779  *
5780  * This routine is to handle the SLI4 asynchronous dcbx event.
5781  **/
5782 static void
5783 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5784                          struct lpfc_acqe_dcbx *acqe_dcbx)
5785 {
5786         phba->fc_eventTag = acqe_dcbx->event_tag;
5787         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5788                         "0290 The SLI4 DCBX asynchronous event is not "
5789                         "handled yet\n");
5790 }
5791
5792 /**
5793  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5794  * @phba: pointer to lpfc hba data structure.
5795  * @acqe_link: pointer to the async grp5 completion queue entry.
5796  *
5797  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5798  * is an asynchronous notified of a logical link speed change.  The Port
5799  * reports the logical link speed in units of 10Mbps.
5800  **/
5801 static void
5802 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5803                          struct lpfc_acqe_grp5 *acqe_grp5)
5804 {
5805         uint16_t prev_ll_spd;
5806
5807         phba->fc_eventTag = acqe_grp5->event_tag;
5808         phba->fcoe_eventtag = acqe_grp5->event_tag;
5809         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5810         phba->sli4_hba.link_state.logical_speed =
5811                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5812         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5813                         "2789 GRP5 Async Event: Updating logical link speed "
5814                         "from %dMbps to %dMbps\n", prev_ll_spd,
5815                         phba->sli4_hba.link_state.logical_speed);
5816 }
5817
5818 /**
5819  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5820  * @phba: pointer to lpfc hba data structure.
5821  *
5822  * This routine is invoked by the worker thread to process all the pending
5823  * SLI4 asynchronous events.
5824  **/
5825 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5826 {
5827         struct lpfc_cq_event *cq_event;
5828
5829         /* First, declare the async event has been handled */
5830         spin_lock_irq(&phba->hbalock);
5831         phba->hba_flag &= ~ASYNC_EVENT;
5832         spin_unlock_irq(&phba->hbalock);
5833         /* Now, handle all the async events */
5834         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5835                 /* Get the first event from the head of the event queue */
5836                 spin_lock_irq(&phba->hbalock);
5837                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5838                                  cq_event, struct lpfc_cq_event, list);
5839                 spin_unlock_irq(&phba->hbalock);
5840                 /* Process the asynchronous event */
5841                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5842                 case LPFC_TRAILER_CODE_LINK:
5843                         lpfc_sli4_async_link_evt(phba,
5844                                                  &cq_event->cqe.acqe_link);
5845                         break;
5846                 case LPFC_TRAILER_CODE_FCOE:
5847                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5848                         break;
5849                 case LPFC_TRAILER_CODE_DCBX:
5850                         lpfc_sli4_async_dcbx_evt(phba,
5851                                                  &cq_event->cqe.acqe_dcbx);
5852                         break;
5853                 case LPFC_TRAILER_CODE_GRP5:
5854                         lpfc_sli4_async_grp5_evt(phba,
5855                                                  &cq_event->cqe.acqe_grp5);
5856                         break;
5857                 case LPFC_TRAILER_CODE_FC:
5858                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5859                         break;
5860                 case LPFC_TRAILER_CODE_SLI:
5861                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5862                         break;
5863                 default:
5864                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5865                                         "1804 Invalid asynchrous event code: "
5866                                         "x%x\n", bf_get(lpfc_trailer_code,
5867                                         &cq_event->cqe.mcqe_cmpl));
5868                         break;
5869                 }
5870                 /* Free the completion event processed to the free pool */
5871                 lpfc_sli4_cq_event_release(phba, cq_event);
5872         }
5873 }
5874
5875 /**
5876  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5877  * @phba: pointer to lpfc hba data structure.
5878  *
5879  * This routine is invoked by the worker thread to process FCF table
5880  * rediscovery pending completion event.
5881  **/
5882 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5883 {
5884         int rc;
5885
5886         spin_lock_irq(&phba->hbalock);
5887         /* Clear FCF rediscovery timeout event */
5888         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5889         /* Clear driver fast failover FCF record flag */
5890         phba->fcf.failover_rec.flag = 0;
5891         /* Set state for FCF fast failover */
5892         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5893         spin_unlock_irq(&phba->hbalock);
5894
5895         /* Scan FCF table from the first entry to re-discover SAN */
5896         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5897                         "2777 Start post-quiescent FCF table scan\n");
5898         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5899         if (rc)
5900                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5901                                 "2747 Issue FCF scan read FCF mailbox "
5902                                 "command failed 0x%x\n", rc);
5903 }
5904
5905 /**
5906  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5907  * @phba: pointer to lpfc hba data structure.
5908  * @dev_grp: The HBA PCI-Device group number.
5909  *
5910  * This routine is invoked to set up the per HBA PCI-Device group function
5911  * API jump table entries.
5912  *
5913  * Return: 0 if success, otherwise -ENODEV
5914  **/
5915 int
5916 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5917 {
5918         int rc;
5919
5920         /* Set up lpfc PCI-device group */
5921         phba->pci_dev_grp = dev_grp;
5922
5923         /* The LPFC_PCI_DEV_OC uses SLI4 */
5924         if (dev_grp == LPFC_PCI_DEV_OC)
5925                 phba->sli_rev = LPFC_SLI_REV4;
5926
5927         /* Set up device INIT API function jump table */
5928         rc = lpfc_init_api_table_setup(phba, dev_grp);
5929         if (rc)
5930                 return -ENODEV;
5931         /* Set up SCSI API function jump table */
5932         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5933         if (rc)
5934                 return -ENODEV;
5935         /* Set up SLI API function jump table */
5936         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5937         if (rc)
5938                 return -ENODEV;
5939         /* Set up MBOX API function jump table */
5940         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5941         if (rc)
5942                 return -ENODEV;
5943
5944         return 0;
5945 }
5946
5947 /**
5948  * lpfc_log_intr_mode - Log the active interrupt mode
5949  * @phba: pointer to lpfc hba data structure.
5950  * @intr_mode: active interrupt mode adopted.
5951  *
5952  * This routine it invoked to log the currently used active interrupt mode
5953  * to the device.
5954  **/
5955 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5956 {
5957         switch (intr_mode) {
5958         case 0:
5959                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5960                                 "0470 Enable INTx interrupt mode.\n");
5961                 break;
5962         case 1:
5963                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5964                                 "0481 Enabled MSI interrupt mode.\n");
5965                 break;
5966         case 2:
5967                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5968                                 "0480 Enabled MSI-X interrupt mode.\n");
5969                 break;
5970         default:
5971                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5972                                 "0482 Illegal interrupt mode.\n");
5973                 break;
5974         }
5975         return;
5976 }
5977
5978 /**
5979  * lpfc_enable_pci_dev - Enable a generic PCI device.
5980  * @phba: pointer to lpfc hba data structure.
5981  *
5982  * This routine is invoked to enable the PCI device that is common to all
5983  * PCI devices.
5984  *
5985  * Return codes
5986  *      0 - successful
5987  *      other values - error
5988  **/
5989 static int
5990 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5991 {
5992         struct pci_dev *pdev;
5993
5994         /* Obtain PCI device reference */
5995         if (!phba->pcidev)
5996                 goto out_error;
5997         else
5998                 pdev = phba->pcidev;
5999         /* Enable PCI device */
6000         if (pci_enable_device_mem(pdev))
6001                 goto out_error;
6002         /* Request PCI resource for the device */
6003         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6004                 goto out_disable_device;
6005         /* Set up device as PCI master and save state for EEH */
6006         pci_set_master(pdev);
6007         pci_try_set_mwi(pdev);
6008         pci_save_state(pdev);
6009
6010         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6011         if (pci_is_pcie(pdev))
6012                 pdev->needs_freset = 1;
6013
6014         return 0;
6015
6016 out_disable_device:
6017         pci_disable_device(pdev);
6018 out_error:
6019         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6020                         "1401 Failed to enable pci device\n");
6021         return -ENODEV;
6022 }
6023
6024 /**
6025  * lpfc_disable_pci_dev - Disable a generic PCI device.
6026  * @phba: pointer to lpfc hba data structure.
6027  *
6028  * This routine is invoked to disable the PCI device that is common to all
6029  * PCI devices.
6030  **/
6031 static void
6032 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6033 {
6034         struct pci_dev *pdev;
6035
6036         /* Obtain PCI device reference */
6037         if (!phba->pcidev)
6038                 return;
6039         else
6040                 pdev = phba->pcidev;
6041         /* Release PCI resource and disable PCI device */
6042         pci_release_mem_regions(pdev);
6043         pci_disable_device(pdev);
6044
6045         return;
6046 }
6047
6048 /**
6049  * lpfc_reset_hba - Reset a hba
6050  * @phba: pointer to lpfc hba data structure.
6051  *
6052  * This routine is invoked to reset a hba device. It brings the HBA
6053  * offline, performs a board restart, and then brings the board back
6054  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6055  * on outstanding mailbox commands.
6056  **/
6057 void
6058 lpfc_reset_hba(struct lpfc_hba *phba)
6059 {
6060         /* If resets are disabled then set error state and return. */
6061         if (!phba->cfg_enable_hba_reset) {
6062                 phba->link_state = LPFC_HBA_ERROR;
6063                 return;
6064         }
6065         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6066                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6067         else
6068                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6069         lpfc_offline(phba);
6070         lpfc_sli_brdrestart(phba);
6071         lpfc_online(phba);
6072         lpfc_unblock_mgmt_io(phba);
6073 }
6074
6075 /**
6076  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6077  * @phba: pointer to lpfc hba data structure.
6078  *
6079  * This function enables the PCI SR-IOV virtual functions to a physical
6080  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6081  * enable the number of virtual functions to the physical function. As
6082  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6083  * API call does not considered as an error condition for most of the device.
6084  **/
6085 uint16_t
6086 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6087 {
6088         struct pci_dev *pdev = phba->pcidev;
6089         uint16_t nr_virtfn;
6090         int pos;
6091
6092         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6093         if (pos == 0)
6094                 return 0;
6095
6096         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6097         return nr_virtfn;
6098 }
6099
6100 /**
6101  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6102  * @phba: pointer to lpfc hba data structure.
6103  * @nr_vfn: number of virtual functions to be enabled.
6104  *
6105  * This function enables the PCI SR-IOV virtual functions to a physical
6106  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6107  * enable the number of virtual functions to the physical function. As
6108  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6109  * API call does not considered as an error condition for most of the device.
6110  **/
6111 int
6112 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6113 {
6114         struct pci_dev *pdev = phba->pcidev;
6115         uint16_t max_nr_vfn;
6116         int rc;
6117
6118         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6119         if (nr_vfn > max_nr_vfn) {
6120                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6121                                 "3057 Requested vfs (%d) greater than "
6122                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6123                 return -EINVAL;
6124         }
6125
6126         rc = pci_enable_sriov(pdev, nr_vfn);
6127         if (rc) {
6128                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6129                                 "2806 Failed to enable sriov on this device "
6130                                 "with vfn number nr_vf:%d, rc:%d\n",
6131                                 nr_vfn, rc);
6132         } else
6133                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6134                                 "2807 Successful enable sriov on this device "
6135                                 "with vfn number nr_vf:%d\n", nr_vfn);
6136         return rc;
6137 }
6138
6139 /**
6140  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6141  * @phba: pointer to lpfc hba data structure.
6142  *
6143  * This routine is invoked to set up the driver internal resources before the
6144  * device specific resource setup to support the HBA device it attached to.
6145  *
6146  * Return codes
6147  *      0 - successful
6148  *      other values - error
6149  **/
6150 static int
6151 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6152 {
6153         struct lpfc_sli *psli = &phba->sli;
6154
6155         /*
6156          * Driver resources common to all SLI revisions
6157          */
6158         atomic_set(&phba->fast_event_count, 0);
6159         spin_lock_init(&phba->hbalock);
6160
6161         /* Initialize ndlp management spinlock */
6162         spin_lock_init(&phba->ndlp_lock);
6163
6164         /* Initialize port_list spinlock */
6165         spin_lock_init(&phba->port_list_lock);
6166         INIT_LIST_HEAD(&phba->port_list);
6167
6168         INIT_LIST_HEAD(&phba->work_list);
6169         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6170
6171         /* Initialize the wait queue head for the kernel thread */
6172         init_waitqueue_head(&phba->work_waitq);
6173
6174         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6175                         "1403 Protocols supported %s %s %s\n",
6176                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6177                                 "SCSI" : " "),
6178                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6179                                 "NVME" : " "),
6180                         (phba->nvmet_support ? "NVMET" : " "));
6181
6182         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6183         spin_lock_init(&phba->scsi_buf_list_get_lock);
6184         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6185         spin_lock_init(&phba->scsi_buf_list_put_lock);
6186         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6187
6188         /* Initialize the fabric iocb list */
6189         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6190
6191         /* Initialize list to save ELS buffers */
6192         INIT_LIST_HEAD(&phba->elsbuf);
6193
6194         /* Initialize FCF connection rec list */
6195         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6196
6197         /* Initialize OAS configuration list */
6198         spin_lock_init(&phba->devicelock);
6199         INIT_LIST_HEAD(&phba->luns);
6200
6201         /* MBOX heartbeat timer */
6202         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6203         /* Fabric block timer */
6204         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6205         /* EA polling mode timer */
6206         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6207         /* Heartbeat timer */
6208         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6209
6210         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6211
6212         return 0;
6213 }
6214
6215 /**
6216  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6217  * @phba: pointer to lpfc hba data structure.
6218  *
6219  * This routine is invoked to set up the driver internal resources specific to
6220  * support the SLI-3 HBA device it attached to.
6221  *
6222  * Return codes
6223  * 0 - successful
6224  * other values - error
6225  **/
6226 static int
6227 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6228 {
6229         int rc, entry_sz;
6230
6231         /*
6232          * Initialize timers used by driver
6233          */
6234
6235         /* FCP polling mode timer */
6236         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6237
6238         /* Host attention work mask setup */
6239         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6240         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6241
6242         /* Get all the module params for configuring this host */
6243         lpfc_get_cfgparam(phba);
6244         /* Set up phase-1 common device driver resources */
6245
6246         rc = lpfc_setup_driver_resource_phase1(phba);
6247         if (rc)
6248                 return -ENODEV;
6249
6250         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6251                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6252                 /* check for menlo minimum sg count */
6253                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6254                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6255         }
6256
6257         if (!phba->sli.sli3_ring)
6258                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6259                                               sizeof(struct lpfc_sli_ring),
6260                                               GFP_KERNEL);
6261         if (!phba->sli.sli3_ring)
6262                 return -ENOMEM;
6263
6264         /*
6265          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6266          * used to create the sg_dma_buf_pool must be dynamically calculated.
6267          */
6268
6269         /* Initialize the host templates the configured values. */
6270         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6271         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6272         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6273
6274         if (phba->sli_rev == LPFC_SLI_REV4)
6275                 entry_sz = sizeof(struct sli4_sge);
6276         else
6277                 entry_sz = sizeof(struct ulp_bde64);
6278
6279         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6280         if (phba->cfg_enable_bg) {
6281                 /*
6282                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6283                  * the FCP rsp, and a BDE for each. Sice we have no control
6284                  * over how many protection data segments the SCSI Layer
6285                  * will hand us (ie: there could be one for every block
6286                  * in the IO), we just allocate enough BDEs to accomidate
6287                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6288                  * minimize the risk of running out.
6289                  */
6290                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6291                         sizeof(struct fcp_rsp) +
6292                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6293
6294                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6295                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6296
6297                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6298                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6299         } else {
6300                 /*
6301                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6302                  * the FCP rsp, a BDE for each, and a BDE for up to
6303                  * cfg_sg_seg_cnt data segments.
6304                  */
6305                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6306                         sizeof(struct fcp_rsp) +
6307                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6308
6309                 /* Total BDEs in BPL for scsi_sg_list */
6310                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6311         }
6312
6313         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6314                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6315                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6316                         phba->cfg_total_seg_cnt);
6317
6318         phba->max_vpi = LPFC_MAX_VPI;
6319         /* This will be set to correct value after config_port mbox */
6320         phba->max_vports = 0;
6321
6322         /*
6323          * Initialize the SLI Layer to run with lpfc HBAs.
6324          */
6325         lpfc_sli_setup(phba);
6326         lpfc_sli_queue_init(phba);
6327
6328         /* Allocate device driver memory */
6329         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6330                 return -ENOMEM;
6331
6332         phba->lpfc_sg_dma_buf_pool =
6333                 dma_pool_create("lpfc_sg_dma_buf_pool",
6334                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6335                                 BPL_ALIGN_SZ, 0);
6336
6337         if (!phba->lpfc_sg_dma_buf_pool)
6338                 goto fail_free_mem;
6339
6340         phba->lpfc_cmd_rsp_buf_pool =
6341                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6342                                         &phba->pcidev->dev,
6343                                         sizeof(struct fcp_cmnd) +
6344                                         sizeof(struct fcp_rsp),
6345                                         BPL_ALIGN_SZ, 0);
6346
6347         if (!phba->lpfc_cmd_rsp_buf_pool)
6348                 goto fail_free_dma_buf_pool;
6349
6350         /*
6351          * Enable sr-iov virtual functions if supported and configured
6352          * through the module parameter.
6353          */
6354         if (phba->cfg_sriov_nr_virtfn > 0) {
6355                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6356                                                  phba->cfg_sriov_nr_virtfn);
6357                 if (rc) {
6358                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6359                                         "2808 Requested number of SR-IOV "
6360                                         "virtual functions (%d) is not "
6361                                         "supported\n",
6362                                         phba->cfg_sriov_nr_virtfn);
6363                         phba->cfg_sriov_nr_virtfn = 0;
6364                 }
6365         }
6366
6367         return 0;
6368
6369 fail_free_dma_buf_pool:
6370         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6371         phba->lpfc_sg_dma_buf_pool = NULL;
6372 fail_free_mem:
6373         lpfc_mem_free(phba);
6374         return -ENOMEM;
6375 }
6376
6377 /**
6378  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6379  * @phba: pointer to lpfc hba data structure.
6380  *
6381  * This routine is invoked to unset the driver internal resources set up
6382  * specific for supporting the SLI-3 HBA device it attached to.
6383  **/
6384 static void
6385 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6386 {
6387         /* Free device driver memory allocated */
6388         lpfc_mem_free_all(phba);
6389
6390         return;
6391 }
6392
6393 /**
6394  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6395  * @phba: pointer to lpfc hba data structure.
6396  *
6397  * This routine is invoked to set up the driver internal resources specific to
6398  * support the SLI-4 HBA device it attached to.
6399  *
6400  * Return codes
6401  *      0 - successful
6402  *      other values - error
6403  **/
6404 static int
6405 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6406 {
6407         LPFC_MBOXQ_t *mboxq;
6408         MAILBOX_t *mb;
6409         int rc, i, max_buf_size;
6410         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6411         struct lpfc_mqe *mqe;
6412         int longs;
6413         int extra;
6414         uint64_t wwn;
6415         u32 if_type;
6416         u32 if_fam;
6417
6418         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6419         phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6420         phba->sli4_hba.curr_disp_cpu = 0;
6421
6422         /* Get all the module params for configuring this host */
6423         lpfc_get_cfgparam(phba);
6424
6425         /* Set up phase-1 common device driver resources */
6426         rc = lpfc_setup_driver_resource_phase1(phba);
6427         if (rc)
6428                 return -ENODEV;
6429
6430         /* Before proceed, wait for POST done and device ready */
6431         rc = lpfc_sli4_post_status_check(phba);
6432         if (rc)
6433                 return -ENODEV;
6434
6435         /* Allocate all driver workqueues here */
6436
6437         /* The lpfc_wq workqueue for deferred irq use */
6438         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6439
6440         /*
6441          * Initialize timers used by driver
6442          */
6443
6444         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6445
6446         /* FCF rediscover timer */
6447         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6448
6449         /*
6450          * Control structure for handling external multi-buffer mailbox
6451          * command pass-through.
6452          */
6453         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6454                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6455         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6456
6457         phba->max_vpi = LPFC_MAX_VPI;
6458
6459         /* This will be set to correct value after the read_config mbox */
6460         phba->max_vports = 0;
6461
6462         /* Program the default value of vlan_id and fc_map */
6463         phba->valid_vlan = 0;
6464         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6465         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6466         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6467
6468         /*
6469          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6470          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6471          * The WQ create will allocate the ring.
6472          */
6473
6474         /* Initialize buffer queue management fields */
6475         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6476         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6477         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6478
6479         /*
6480          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6481          */
6482         /* Initialize the Abort buffer list used by driver */
6483         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6484         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6485
6486         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6487                 /* Initialize the Abort nvme buffer list used by driver */
6488                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6489                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6490                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6491                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6492                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6493         }
6494
6495         /* This abort list used by worker thread */
6496         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6497         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6498
6499         /*
6500          * Initialize driver internal slow-path work queues
6501          */
6502
6503         /* Driver internel slow-path CQ Event pool */
6504         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6505         /* Response IOCB work queue list */
6506         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6507         /* Asynchronous event CQ Event work queue list */
6508         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6509         /* Fast-path XRI aborted CQ Event work queue list */
6510         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6511         /* Slow-path XRI aborted CQ Event work queue list */
6512         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6513         /* Receive queue CQ Event work queue list */
6514         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6515
6516         /* Initialize extent block lists. */
6517         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6518         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6519         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6520         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6521
6522         /* Initialize mboxq lists. If the early init routines fail
6523          * these lists need to be correctly initialized.
6524          */
6525         INIT_LIST_HEAD(&phba->sli.mboxq);
6526         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6527
6528         /* initialize optic_state to 0xFF */
6529         phba->sli4_hba.lnk_info.optic_state = 0xff;
6530
6531         /* Allocate device driver memory */
6532         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6533         if (rc)
6534                 return -ENOMEM;
6535
6536         /* IF Type 2 ports get initialized now. */
6537         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6538             LPFC_SLI_INTF_IF_TYPE_2) {
6539                 rc = lpfc_pci_function_reset(phba);
6540                 if (unlikely(rc)) {
6541                         rc = -ENODEV;
6542                         goto out_free_mem;
6543                 }
6544                 phba->temp_sensor_support = 1;
6545         }
6546
6547         /* Create the bootstrap mailbox command */
6548         rc = lpfc_create_bootstrap_mbox(phba);
6549         if (unlikely(rc))
6550                 goto out_free_mem;
6551
6552         /* Set up the host's endian order with the device. */
6553         rc = lpfc_setup_endian_order(phba);
6554         if (unlikely(rc))
6555                 goto out_free_bsmbx;
6556
6557         /* Set up the hba's configuration parameters. */
6558         rc = lpfc_sli4_read_config(phba);
6559         if (unlikely(rc))
6560                 goto out_free_bsmbx;
6561         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6562         if (unlikely(rc))
6563                 goto out_free_bsmbx;
6564
6565         /* IF Type 0 ports get initialized now. */
6566         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6567             LPFC_SLI_INTF_IF_TYPE_0) {
6568                 rc = lpfc_pci_function_reset(phba);
6569                 if (unlikely(rc))
6570                         goto out_free_bsmbx;
6571         }
6572
6573         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6574                                                        GFP_KERNEL);
6575         if (!mboxq) {
6576                 rc = -ENOMEM;
6577                 goto out_free_bsmbx;
6578         }
6579
6580         /* Check for NVMET being configured */
6581         phba->nvmet_support = 0;
6582         if (lpfc_enable_nvmet_cnt) {
6583
6584                 /* First get WWN of HBA instance */
6585                 lpfc_read_nv(phba, mboxq);
6586                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6587                 if (rc != MBX_SUCCESS) {
6588                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6589                                         "6016 Mailbox failed , mbxCmd x%x "
6590                                         "READ_NV, mbxStatus x%x\n",
6591                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6592                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6593                         mempool_free(mboxq, phba->mbox_mem_pool);
6594                         rc = -EIO;
6595                         goto out_free_bsmbx;
6596                 }
6597                 mb = &mboxq->u.mb;
6598                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6599                        sizeof(uint64_t));
6600                 wwn = cpu_to_be64(wwn);
6601                 phba->sli4_hba.wwnn.u.name = wwn;
6602                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6603                        sizeof(uint64_t));
6604                 /* wwn is WWPN of HBA instance */
6605                 wwn = cpu_to_be64(wwn);
6606                 phba->sli4_hba.wwpn.u.name = wwn;
6607
6608                 /* Check to see if it matches any module parameter */
6609                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6610                         if (wwn == lpfc_enable_nvmet[i]) {
6611 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6612                                 if (lpfc_nvmet_mem_alloc(phba))
6613                                         break;
6614
6615                                 phba->nvmet_support = 1; /* a match */
6616
6617                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6618                                                 "6017 NVME Target %016llx\n",
6619                                                 wwn);
6620 #else
6621                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6622                                                 "6021 Can't enable NVME Target."
6623                                                 " NVME_TARGET_FC infrastructure"
6624                                                 " is not in kernel\n");
6625 #endif
6626                                 /* Not supported for NVMET */
6627                                 phba->cfg_xri_rebalancing = 0;
6628                                 break;
6629                         }
6630                 }
6631         }
6632
6633         lpfc_nvme_mod_param_dep(phba);
6634
6635         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6636         lpfc_supported_pages(mboxq);
6637         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6638         if (!rc) {
6639                 mqe = &mboxq->u.mqe;
6640                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6641                        LPFC_MAX_SUPPORTED_PAGES);
6642                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6643                         switch (pn_page[i]) {
6644                         case LPFC_SLI4_PARAMETERS:
6645                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6646                                 break;
6647                         default:
6648                                 break;
6649                         }
6650                 }
6651                 /* Read the port's SLI4 Parameters capabilities if supported. */
6652                 if (phba->sli4_hba.pc_sli4_params.supported)
6653                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6654                 if (rc) {
6655                         mempool_free(mboxq, phba->mbox_mem_pool);
6656                         rc = -EIO;
6657                         goto out_free_bsmbx;
6658                 }
6659         }
6660
6661         /*
6662          * Get sli4 parameters that override parameters from Port capabilities.
6663          * If this call fails, it isn't critical unless the SLI4 parameters come
6664          * back in conflict.
6665          */
6666         rc = lpfc_get_sli4_parameters(phba, mboxq);
6667         if (rc) {
6668                 if_type = bf_get(lpfc_sli_intf_if_type,
6669                                  &phba->sli4_hba.sli_intf);
6670                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6671                                 &phba->sli4_hba.sli_intf);
6672                 if (phba->sli4_hba.extents_in_use &&
6673                     phba->sli4_hba.rpi_hdrs_in_use) {
6674                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6675                                 "2999 Unsupported SLI4 Parameters "
6676                                 "Extents and RPI headers enabled.\n");
6677                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6678                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6679                                 mempool_free(mboxq, phba->mbox_mem_pool);
6680                                 rc = -EIO;
6681                                 goto out_free_bsmbx;
6682                         }
6683                 }
6684                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6685                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6686                         mempool_free(mboxq, phba->mbox_mem_pool);
6687                         rc = -EIO;
6688                         goto out_free_bsmbx;
6689                 }
6690         }
6691
6692         /*
6693          * 1 for cmd, 1 for rsp, NVME adds an extra one
6694          * for boundary conditions in its max_sgl_segment template.
6695          */
6696         extra = 2;
6697         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6698                 extra++;
6699
6700         /*
6701          * It doesn't matter what family our adapter is in, we are
6702          * limited to 2 Pages, 512 SGEs, for our SGL.
6703          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6704          */
6705         max_buf_size = (2 * SLI4_PAGE_SIZE);
6706
6707         /*
6708          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6709          * used to create the sg_dma_buf_pool must be calculated.
6710          */
6711         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6712                 /* Both cfg_enable_bg and cfg_external_dif code paths */
6713
6714                 /*
6715                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6716                  * the FCP rsp, and a SGE. Sice we have no control
6717                  * over how many protection segments the SCSI Layer
6718                  * will hand us (ie: there could be one for every block
6719                  * in the IO), just allocate enough SGEs to accomidate
6720                  * our max amount and we need to limit lpfc_sg_seg_cnt
6721                  * to minimize the risk of running out.
6722                  */
6723                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6724                                 sizeof(struct fcp_rsp) + max_buf_size;
6725
6726                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6727                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6728
6729                 /*
6730                  * If supporting DIF, reduce the seg count for scsi to
6731                  * allow room for the DIF sges.
6732                  */
6733                 if (phba->cfg_enable_bg &&
6734                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6735                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6736                 else
6737                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6738
6739         } else {
6740                 /*
6741                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6742                  * the FCP rsp, a SGE for each, and a SGE for up to
6743                  * cfg_sg_seg_cnt data segments.
6744                  */
6745                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6746                                 sizeof(struct fcp_rsp) +
6747                                 ((phba->cfg_sg_seg_cnt + extra) *
6748                                 sizeof(struct sli4_sge));
6749
6750                 /* Total SGEs for scsi_sg_list */
6751                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6752                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6753
6754                 /*
6755                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6756                  * need to post 1 page for the SGL.
6757                  */
6758         }
6759
6760         if (phba->cfg_xpsgl && !phba->nvmet_support)
6761                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6762         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6763                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6764         else
6765                 phba->cfg_sg_dma_buf_size =
6766                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6767
6768         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6769                                sizeof(struct sli4_sge);
6770
6771         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6772         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6773                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6774                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6775                                         "6300 Reducing NVME sg segment "
6776                                         "cnt to %d\n",
6777                                         LPFC_MAX_NVME_SEG_CNT);
6778                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6779                 } else
6780                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6781         }
6782
6783         /* Initialize the host templates with the updated values. */
6784         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6785         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6786         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6787
6788         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6789                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6790                         "total:%d scsi:%d nvme:%d\n",
6791                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6792                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6793                         phba->cfg_nvme_seg_cnt);
6794
6795         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6796                 i = phba->cfg_sg_dma_buf_size;
6797         else
6798                 i = SLI4_PAGE_SIZE;
6799
6800         phba->lpfc_sg_dma_buf_pool =
6801                         dma_pool_create("lpfc_sg_dma_buf_pool",
6802                                         &phba->pcidev->dev,
6803                                         phba->cfg_sg_dma_buf_size,
6804                                         i, 0);
6805         if (!phba->lpfc_sg_dma_buf_pool)
6806                 goto out_free_bsmbx;
6807
6808         phba->lpfc_cmd_rsp_buf_pool =
6809                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6810                                         &phba->pcidev->dev,
6811                                         sizeof(struct fcp_cmnd) +
6812                                         sizeof(struct fcp_rsp),
6813                                         i, 0);
6814         if (!phba->lpfc_cmd_rsp_buf_pool)
6815                 goto out_free_sg_dma_buf;
6816
6817         mempool_free(mboxq, phba->mbox_mem_pool);
6818
6819         /* Verify OAS is supported */
6820         lpfc_sli4_oas_verify(phba);
6821
6822         /* Verify RAS support on adapter */
6823         lpfc_sli4_ras_init(phba);
6824
6825         /* Verify all the SLI4 queues */
6826         rc = lpfc_sli4_queue_verify(phba);
6827         if (rc)
6828                 goto out_free_cmd_rsp_buf;
6829
6830         /* Create driver internal CQE event pool */
6831         rc = lpfc_sli4_cq_event_pool_create(phba);
6832         if (rc)
6833                 goto out_free_cmd_rsp_buf;
6834
6835         /* Initialize sgl lists per host */
6836         lpfc_init_sgl_list(phba);
6837
6838         /* Allocate and initialize active sgl array */
6839         rc = lpfc_init_active_sgl_array(phba);
6840         if (rc) {
6841                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6842                                 "1430 Failed to initialize sgl list.\n");
6843                 goto out_destroy_cq_event_pool;
6844         }
6845         rc = lpfc_sli4_init_rpi_hdrs(phba);
6846         if (rc) {
6847                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6848                                 "1432 Failed to initialize rpi headers.\n");
6849                 goto out_free_active_sgl;
6850         }
6851
6852         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6853         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6854         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6855                                          GFP_KERNEL);
6856         if (!phba->fcf.fcf_rr_bmask) {
6857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6858                                 "2759 Failed allocate memory for FCF round "
6859                                 "robin failover bmask\n");
6860                 rc = -ENOMEM;
6861                 goto out_remove_rpi_hdrs;
6862         }
6863
6864         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6865                                             sizeof(struct lpfc_hba_eq_hdl),
6866                                             GFP_KERNEL);
6867         if (!phba->sli4_hba.hba_eq_hdl) {
6868                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6869                                 "2572 Failed allocate memory for "
6870                                 "fast-path per-EQ handle array\n");
6871                 rc = -ENOMEM;
6872                 goto out_free_fcf_rr_bmask;
6873         }
6874
6875         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6876                                         sizeof(struct lpfc_vector_map_info),
6877                                         GFP_KERNEL);
6878         if (!phba->sli4_hba.cpu_map) {
6879                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6880                                 "3327 Failed allocate memory for msi-x "
6881                                 "interrupt vector mapping\n");
6882                 rc = -ENOMEM;
6883                 goto out_free_hba_eq_hdl;
6884         }
6885
6886         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6887         if (!phba->sli4_hba.eq_info) {
6888                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6889                                 "3321 Failed allocation for per_cpu stats\n");
6890                 rc = -ENOMEM;
6891                 goto out_free_hba_cpu_map;
6892         }
6893         /*
6894          * Enable sr-iov virtual functions if supported and configured
6895          * through the module parameter.
6896          */
6897         if (phba->cfg_sriov_nr_virtfn > 0) {
6898                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6899                                                  phba->cfg_sriov_nr_virtfn);
6900                 if (rc) {
6901                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6902                                         "3020 Requested number of SR-IOV "
6903                                         "virtual functions (%d) is not "
6904                                         "supported\n",
6905                                         phba->cfg_sriov_nr_virtfn);
6906                         phba->cfg_sriov_nr_virtfn = 0;
6907                 }
6908         }
6909
6910         return 0;
6911
6912 out_free_hba_cpu_map:
6913         kfree(phba->sli4_hba.cpu_map);
6914 out_free_hba_eq_hdl:
6915         kfree(phba->sli4_hba.hba_eq_hdl);
6916 out_free_fcf_rr_bmask:
6917         kfree(phba->fcf.fcf_rr_bmask);
6918 out_remove_rpi_hdrs:
6919         lpfc_sli4_remove_rpi_hdrs(phba);
6920 out_free_active_sgl:
6921         lpfc_free_active_sgl(phba);
6922 out_destroy_cq_event_pool:
6923         lpfc_sli4_cq_event_pool_destroy(phba);
6924 out_free_cmd_rsp_buf:
6925         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
6926         phba->lpfc_cmd_rsp_buf_pool = NULL;
6927 out_free_sg_dma_buf:
6928         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6929         phba->lpfc_sg_dma_buf_pool = NULL;
6930 out_free_bsmbx:
6931         lpfc_destroy_bootstrap_mbox(phba);
6932 out_free_mem:
6933         lpfc_mem_free(phba);
6934         return rc;
6935 }
6936
6937 /**
6938  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6939  * @phba: pointer to lpfc hba data structure.
6940  *
6941  * This routine is invoked to unset the driver internal resources set up
6942  * specific for supporting the SLI-4 HBA device it attached to.
6943  **/
6944 static void
6945 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6946 {
6947         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6948
6949         free_percpu(phba->sli4_hba.eq_info);
6950
6951         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6952         kfree(phba->sli4_hba.cpu_map);
6953         phba->sli4_hba.num_possible_cpu = 0;
6954         phba->sli4_hba.num_present_cpu = 0;
6955         phba->sli4_hba.curr_disp_cpu = 0;
6956
6957         /* Free memory allocated for fast-path work queue handles */
6958         kfree(phba->sli4_hba.hba_eq_hdl);
6959
6960         /* Free the allocated rpi headers. */
6961         lpfc_sli4_remove_rpi_hdrs(phba);
6962         lpfc_sli4_remove_rpis(phba);
6963
6964         /* Free eligible FCF index bmask */
6965         kfree(phba->fcf.fcf_rr_bmask);
6966
6967         /* Free the ELS sgl list */
6968         lpfc_free_active_sgl(phba);
6969         lpfc_free_els_sgl_list(phba);
6970         lpfc_free_nvmet_sgl_list(phba);
6971
6972         /* Free the completion queue EQ event pool */
6973         lpfc_sli4_cq_event_release_all(phba);
6974         lpfc_sli4_cq_event_pool_destroy(phba);
6975
6976         /* Release resource identifiers. */
6977         lpfc_sli4_dealloc_resource_identifiers(phba);
6978
6979         /* Free the bsmbx region. */
6980         lpfc_destroy_bootstrap_mbox(phba);
6981
6982         /* Free the SLI Layer memory with SLI4 HBAs */
6983         lpfc_mem_free_all(phba);
6984
6985         /* Free the current connect table */
6986         list_for_each_entry_safe(conn_entry, next_conn_entry,
6987                 &phba->fcf_conn_rec_list, list) {
6988                 list_del_init(&conn_entry->list);
6989                 kfree(conn_entry);
6990         }
6991
6992         return;
6993 }
6994
6995 /**
6996  * lpfc_init_api_table_setup - Set up init api function jump table
6997  * @phba: The hba struct for which this call is being executed.
6998  * @dev_grp: The HBA PCI-Device group number.
6999  *
7000  * This routine sets up the device INIT interface API function jump table
7001  * in @phba struct.
7002  *
7003  * Returns: 0 - success, -ENODEV - failure.
7004  **/
7005 int
7006 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7007 {
7008         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7009         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7010         phba->lpfc_selective_reset = lpfc_selective_reset;
7011         switch (dev_grp) {
7012         case LPFC_PCI_DEV_LP:
7013                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7014                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7015                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7016                 break;
7017         case LPFC_PCI_DEV_OC:
7018                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7019                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7020                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7021                 break;
7022         default:
7023                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7024                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7025                                 dev_grp);
7026                 return -ENODEV;
7027                 break;
7028         }
7029         return 0;
7030 }
7031
7032 /**
7033  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7034  * @phba: pointer to lpfc hba data structure.
7035  *
7036  * This routine is invoked to set up the driver internal resources after the
7037  * device specific resource setup to support the HBA device it attached to.
7038  *
7039  * Return codes
7040  *      0 - successful
7041  *      other values - error
7042  **/
7043 static int
7044 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7045 {
7046         int error;
7047
7048         /* Startup the kernel thread for this host adapter. */
7049         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7050                                           "lpfc_worker_%d", phba->brd_no);
7051         if (IS_ERR(phba->worker_thread)) {
7052                 error = PTR_ERR(phba->worker_thread);
7053                 return error;
7054         }
7055
7056         return 0;
7057 }
7058
7059 /**
7060  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7061  * @phba: pointer to lpfc hba data structure.
7062  *
7063  * This routine is invoked to unset the driver internal resources set up after
7064  * the device specific resource setup for supporting the HBA device it
7065  * attached to.
7066  **/
7067 static void
7068 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7069 {
7070         if (phba->wq) {
7071                 flush_workqueue(phba->wq);
7072                 destroy_workqueue(phba->wq);
7073                 phba->wq = NULL;
7074         }
7075
7076         /* Stop kernel worker thread */
7077         if (phba->worker_thread)
7078                 kthread_stop(phba->worker_thread);
7079 }
7080
7081 /**
7082  * lpfc_free_iocb_list - Free iocb list.
7083  * @phba: pointer to lpfc hba data structure.
7084  *
7085  * This routine is invoked to free the driver's IOCB list and memory.
7086  **/
7087 void
7088 lpfc_free_iocb_list(struct lpfc_hba *phba)
7089 {
7090         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7091
7092         spin_lock_irq(&phba->hbalock);
7093         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7094                                  &phba->lpfc_iocb_list, list) {
7095                 list_del(&iocbq_entry->list);
7096                 kfree(iocbq_entry);
7097                 phba->total_iocbq_bufs--;
7098         }
7099         spin_unlock_irq(&phba->hbalock);
7100
7101         return;
7102 }
7103
7104 /**
7105  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7106  * @phba: pointer to lpfc hba data structure.
7107  *
7108  * This routine is invoked to allocate and initizlize the driver's IOCB
7109  * list and set up the IOCB tag array accordingly.
7110  *
7111  * Return codes
7112  *      0 - successful
7113  *      other values - error
7114  **/
7115 int
7116 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7117 {
7118         struct lpfc_iocbq *iocbq_entry = NULL;
7119         uint16_t iotag;
7120         int i;
7121
7122         /* Initialize and populate the iocb list per host.  */
7123         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7124         for (i = 0; i < iocb_count; i++) {
7125                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7126                 if (iocbq_entry == NULL) {
7127                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7128                                 "expected %d count. Unloading driver.\n",
7129                                 __func__, i, LPFC_IOCB_LIST_CNT);
7130                         goto out_free_iocbq;
7131                 }
7132
7133                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7134                 if (iotag == 0) {
7135                         kfree(iocbq_entry);
7136                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7137                                 "Unloading driver.\n", __func__);
7138                         goto out_free_iocbq;
7139                 }
7140                 iocbq_entry->sli4_lxritag = NO_XRI;
7141                 iocbq_entry->sli4_xritag = NO_XRI;
7142
7143                 spin_lock_irq(&phba->hbalock);
7144                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7145                 phba->total_iocbq_bufs++;
7146                 spin_unlock_irq(&phba->hbalock);
7147         }
7148
7149         return 0;
7150
7151 out_free_iocbq:
7152         lpfc_free_iocb_list(phba);
7153
7154         return -ENOMEM;
7155 }
7156
7157 /**
7158  * lpfc_free_sgl_list - Free a given sgl list.
7159  * @phba: pointer to lpfc hba data structure.
7160  * @sglq_list: pointer to the head of sgl list.
7161  *
7162  * This routine is invoked to free a give sgl list and memory.
7163  **/
7164 void
7165 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7166 {
7167         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7168
7169         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7170                 list_del(&sglq_entry->list);
7171                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7172                 kfree(sglq_entry);
7173         }
7174 }
7175
7176 /**
7177  * lpfc_free_els_sgl_list - Free els sgl list.
7178  * @phba: pointer to lpfc hba data structure.
7179  *
7180  * This routine is invoked to free the driver's els sgl list and memory.
7181  **/
7182 static void
7183 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7184 {
7185         LIST_HEAD(sglq_list);
7186
7187         /* Retrieve all els sgls from driver list */
7188         spin_lock_irq(&phba->hbalock);
7189         spin_lock(&phba->sli4_hba.sgl_list_lock);
7190         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7191         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7192         spin_unlock_irq(&phba->hbalock);
7193
7194         /* Now free the sgl list */
7195         lpfc_free_sgl_list(phba, &sglq_list);
7196 }
7197
7198 /**
7199  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7200  * @phba: pointer to lpfc hba data structure.
7201  *
7202  * This routine is invoked to free the driver's nvmet sgl list and memory.
7203  **/
7204 static void
7205 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7206 {
7207         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7208         LIST_HEAD(sglq_list);
7209
7210         /* Retrieve all nvmet sgls from driver list */
7211         spin_lock_irq(&phba->hbalock);
7212         spin_lock(&phba->sli4_hba.sgl_list_lock);
7213         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7214         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7215         spin_unlock_irq(&phba->hbalock);
7216
7217         /* Now free the sgl list */
7218         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7219                 list_del(&sglq_entry->list);
7220                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7221                 kfree(sglq_entry);
7222         }
7223
7224         /* Update the nvmet_xri_cnt to reflect no current sgls.
7225          * The next initialization cycle sets the count and allocates
7226          * the sgls over again.
7227          */
7228         phba->sli4_hba.nvmet_xri_cnt = 0;
7229 }
7230
7231 /**
7232  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7233  * @phba: pointer to lpfc hba data structure.
7234  *
7235  * This routine is invoked to allocate the driver's active sgl memory.
7236  * This array will hold the sglq_entry's for active IOs.
7237  **/
7238 static int
7239 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7240 {
7241         int size;
7242         size = sizeof(struct lpfc_sglq *);
7243         size *= phba->sli4_hba.max_cfg_param.max_xri;
7244
7245         phba->sli4_hba.lpfc_sglq_active_list =
7246                 kzalloc(size, GFP_KERNEL);
7247         if (!phba->sli4_hba.lpfc_sglq_active_list)
7248                 return -ENOMEM;
7249         return 0;
7250 }
7251
7252 /**
7253  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7254  * @phba: pointer to lpfc hba data structure.
7255  *
7256  * This routine is invoked to walk through the array of active sglq entries
7257  * and free all of the resources.
7258  * This is just a place holder for now.
7259  **/
7260 static void
7261 lpfc_free_active_sgl(struct lpfc_hba *phba)
7262 {
7263         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7264 }
7265
7266 /**
7267  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7268  * @phba: pointer to lpfc hba data structure.
7269  *
7270  * This routine is invoked to allocate and initizlize the driver's sgl
7271  * list and set up the sgl xritag tag array accordingly.
7272  *
7273  **/
7274 static void
7275 lpfc_init_sgl_list(struct lpfc_hba *phba)
7276 {
7277         /* Initialize and populate the sglq list per host/VF. */
7278         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7279         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7280         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7281         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7282
7283         /* els xri-sgl book keeping */
7284         phba->sli4_hba.els_xri_cnt = 0;
7285
7286         /* nvme xri-buffer book keeping */
7287         phba->sli4_hba.io_xri_cnt = 0;
7288 }
7289
7290 /**
7291  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7292  * @phba: pointer to lpfc hba data structure.
7293  *
7294  * This routine is invoked to post rpi header templates to the
7295  * port for those SLI4 ports that do not support extents.  This routine
7296  * posts a PAGE_SIZE memory region to the port to hold up to
7297  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7298  * and should be called only when interrupts are disabled.
7299  *
7300  * Return codes
7301  *      0 - successful
7302  *      -ERROR - otherwise.
7303  **/
7304 int
7305 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7306 {
7307         int rc = 0;
7308         struct lpfc_rpi_hdr *rpi_hdr;
7309
7310         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7311         if (!phba->sli4_hba.rpi_hdrs_in_use)
7312                 return rc;
7313         if (phba->sli4_hba.extents_in_use)
7314                 return -EIO;
7315
7316         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7317         if (!rpi_hdr) {
7318                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7319                                 "0391 Error during rpi post operation\n");
7320                 lpfc_sli4_remove_rpis(phba);
7321                 rc = -ENODEV;
7322         }
7323
7324         return rc;
7325 }
7326
7327 /**
7328  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7329  * @phba: pointer to lpfc hba data structure.
7330  *
7331  * This routine is invoked to allocate a single 4KB memory region to
7332  * support rpis and stores them in the phba.  This single region
7333  * provides support for up to 64 rpis.  The region is used globally
7334  * by the device.
7335  *
7336  * Returns:
7337  *   A valid rpi hdr on success.
7338  *   A NULL pointer on any failure.
7339  **/
7340 struct lpfc_rpi_hdr *
7341 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7342 {
7343         uint16_t rpi_limit, curr_rpi_range;
7344         struct lpfc_dmabuf *dmabuf;
7345         struct lpfc_rpi_hdr *rpi_hdr;
7346
7347         /*
7348          * If the SLI4 port supports extents, posting the rpi header isn't
7349          * required.  Set the expected maximum count and let the actual value
7350          * get set when extents are fully allocated.
7351          */
7352         if (!phba->sli4_hba.rpi_hdrs_in_use)
7353                 return NULL;
7354         if (phba->sli4_hba.extents_in_use)
7355                 return NULL;
7356
7357         /* The limit on the logical index is just the max_rpi count. */
7358         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7359
7360         spin_lock_irq(&phba->hbalock);
7361         /*
7362          * Establish the starting RPI in this header block.  The starting
7363          * rpi is normalized to a zero base because the physical rpi is
7364          * port based.
7365          */
7366         curr_rpi_range = phba->sli4_hba.next_rpi;
7367         spin_unlock_irq(&phba->hbalock);
7368
7369         /* Reached full RPI range */
7370         if (curr_rpi_range == rpi_limit)
7371                 return NULL;
7372
7373         /*
7374          * First allocate the protocol header region for the port.  The
7375          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7376          */
7377         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7378         if (!dmabuf)
7379                 return NULL;
7380
7381         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7382                                           LPFC_HDR_TEMPLATE_SIZE,
7383                                           &dmabuf->phys, GFP_KERNEL);
7384         if (!dmabuf->virt) {
7385                 rpi_hdr = NULL;
7386                 goto err_free_dmabuf;
7387         }
7388
7389         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7390                 rpi_hdr = NULL;
7391                 goto err_free_coherent;
7392         }
7393
7394         /* Save the rpi header data for cleanup later. */
7395         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7396         if (!rpi_hdr)
7397                 goto err_free_coherent;
7398
7399         rpi_hdr->dmabuf = dmabuf;
7400         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7401         rpi_hdr->page_count = 1;
7402         spin_lock_irq(&phba->hbalock);
7403
7404         /* The rpi_hdr stores the logical index only. */
7405         rpi_hdr->start_rpi = curr_rpi_range;
7406         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7407         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7408
7409         spin_unlock_irq(&phba->hbalock);
7410         return rpi_hdr;
7411
7412  err_free_coherent:
7413         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7414                           dmabuf->virt, dmabuf->phys);
7415  err_free_dmabuf:
7416         kfree(dmabuf);
7417         return NULL;
7418 }
7419
7420 /**
7421  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7422  * @phba: pointer to lpfc hba data structure.
7423  *
7424  * This routine is invoked to remove all memory resources allocated
7425  * to support rpis for SLI4 ports not supporting extents. This routine
7426  * presumes the caller has released all rpis consumed by fabric or port
7427  * logins and is prepared to have the header pages removed.
7428  **/
7429 void
7430 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7431 {
7432         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7433
7434         if (!phba->sli4_hba.rpi_hdrs_in_use)
7435                 goto exit;
7436
7437         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7438                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7439                 list_del(&rpi_hdr->list);
7440                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7441                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7442                 kfree(rpi_hdr->dmabuf);
7443                 kfree(rpi_hdr);
7444         }
7445  exit:
7446         /* There are no rpis available to the port now. */
7447         phba->sli4_hba.next_rpi = 0;
7448 }
7449
7450 /**
7451  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7452  * @pdev: pointer to pci device data structure.
7453  *
7454  * This routine is invoked to allocate the driver hba data structure for an
7455  * HBA device. If the allocation is successful, the phba reference to the
7456  * PCI device data structure is set.
7457  *
7458  * Return codes
7459  *      pointer to @phba - successful
7460  *      NULL - error
7461  **/
7462 static struct lpfc_hba *
7463 lpfc_hba_alloc(struct pci_dev *pdev)
7464 {
7465         struct lpfc_hba *phba;
7466
7467         /* Allocate memory for HBA structure */
7468         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7469         if (!phba) {
7470                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7471                 return NULL;
7472         }
7473
7474         /* Set reference to PCI device in HBA structure */
7475         phba->pcidev = pdev;
7476
7477         /* Assign an unused board number */
7478         phba->brd_no = lpfc_get_instance();
7479         if (phba->brd_no < 0) {
7480                 kfree(phba);
7481                 return NULL;
7482         }
7483         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7484
7485         spin_lock_init(&phba->ct_ev_lock);
7486         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7487
7488         return phba;
7489 }
7490
7491 /**
7492  * lpfc_hba_free - Free driver hba data structure with a device.
7493  * @phba: pointer to lpfc hba data structure.
7494  *
7495  * This routine is invoked to free the driver hba data structure with an
7496  * HBA device.
7497  **/
7498 static void
7499 lpfc_hba_free(struct lpfc_hba *phba)
7500 {
7501         if (phba->sli_rev == LPFC_SLI_REV4)
7502                 kfree(phba->sli4_hba.hdwq);
7503
7504         /* Release the driver assigned board number */
7505         idr_remove(&lpfc_hba_index, phba->brd_no);
7506
7507         /* Free memory allocated with sli3 rings */
7508         kfree(phba->sli.sli3_ring);
7509         phba->sli.sli3_ring = NULL;
7510
7511         kfree(phba);
7512         return;
7513 }
7514
7515 /**
7516  * lpfc_create_shost - Create hba physical port with associated scsi host.
7517  * @phba: pointer to lpfc hba data structure.
7518  *
7519  * This routine is invoked to create HBA physical port and associate a SCSI
7520  * host with it.
7521  *
7522  * Return codes
7523  *      0 - successful
7524  *      other values - error
7525  **/
7526 static int
7527 lpfc_create_shost(struct lpfc_hba *phba)
7528 {
7529         struct lpfc_vport *vport;
7530         struct Scsi_Host  *shost;
7531
7532         /* Initialize HBA FC structure */
7533         phba->fc_edtov = FF_DEF_EDTOV;
7534         phba->fc_ratov = FF_DEF_RATOV;
7535         phba->fc_altov = FF_DEF_ALTOV;
7536         phba->fc_arbtov = FF_DEF_ARBTOV;
7537
7538         atomic_set(&phba->sdev_cnt, 0);
7539         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7540         if (!vport)
7541                 return -ENODEV;
7542
7543         shost = lpfc_shost_from_vport(vport);
7544         phba->pport = vport;
7545
7546         if (phba->nvmet_support) {
7547                 /* Only 1 vport (pport) will support NVME target */
7548                 if (phba->txrdy_payload_pool == NULL) {
7549                         phba->txrdy_payload_pool = dma_pool_create(
7550                                 "txrdy_pool", &phba->pcidev->dev,
7551                                 TXRDY_PAYLOAD_LEN, 16, 0);
7552                         if (phba->txrdy_payload_pool) {
7553                                 phba->targetport = NULL;
7554                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7555                                 lpfc_printf_log(phba, KERN_INFO,
7556                                                 LOG_INIT | LOG_NVME_DISC,
7557                                                 "6076 NVME Target Found\n");
7558                         }
7559                 }
7560         }
7561
7562         lpfc_debugfs_initialize(vport);
7563         /* Put reference to SCSI host to driver's device private data */
7564         pci_set_drvdata(phba->pcidev, shost);
7565
7566         /*
7567          * At this point we are fully registered with PSA. In addition,
7568          * any initial discovery should be completed.
7569          */
7570         vport->load_flag |= FC_ALLOW_FDMI;
7571         if (phba->cfg_enable_SmartSAN ||
7572             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7573
7574                 /* Setup appropriate attribute masks */
7575                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7576                 if (phba->cfg_enable_SmartSAN)
7577                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7578                 else
7579                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7580         }
7581         return 0;
7582 }
7583
7584 /**
7585  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7586  * @phba: pointer to lpfc hba data structure.
7587  *
7588  * This routine is invoked to destroy HBA physical port and the associated
7589  * SCSI host.
7590  **/
7591 static void
7592 lpfc_destroy_shost(struct lpfc_hba *phba)
7593 {
7594         struct lpfc_vport *vport = phba->pport;
7595
7596         /* Destroy physical port that associated with the SCSI host */
7597         destroy_port(vport);
7598
7599         return;
7600 }
7601
7602 /**
7603  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7604  * @phba: pointer to lpfc hba data structure.
7605  * @shost: the shost to be used to detect Block guard settings.
7606  *
7607  * This routine sets up the local Block guard protocol settings for @shost.
7608  * This routine also allocates memory for debugging bg buffers.
7609  **/
7610 static void
7611 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7612 {
7613         uint32_t old_mask;
7614         uint32_t old_guard;
7615
7616         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7617                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7618                                 "1478 Registering BlockGuard with the "
7619                                 "SCSI layer\n");
7620
7621                 old_mask = phba->cfg_prot_mask;
7622                 old_guard = phba->cfg_prot_guard;
7623
7624                 /* Only allow supported values */
7625                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7626                         SHOST_DIX_TYPE0_PROTECTION |
7627                         SHOST_DIX_TYPE1_PROTECTION);
7628                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7629                                          SHOST_DIX_GUARD_CRC);
7630
7631                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7632                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7633                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7634
7635                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7636                         if ((old_mask != phba->cfg_prot_mask) ||
7637                                 (old_guard != phba->cfg_prot_guard))
7638                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7639                                         "1475 Registering BlockGuard with the "
7640                                         "SCSI layer: mask %d  guard %d\n",
7641                                         phba->cfg_prot_mask,
7642                                         phba->cfg_prot_guard);
7643
7644                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7645                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7646                 } else
7647                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7648                                 "1479 Not Registering BlockGuard with the SCSI "
7649                                 "layer, Bad protection parameters: %d %d\n",
7650                                 old_mask, old_guard);
7651         }
7652 }
7653
7654 /**
7655  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7656  * @phba: pointer to lpfc hba data structure.
7657  *
7658  * This routine is invoked to perform all the necessary post initialization
7659  * setup for the device.
7660  **/
7661 static void
7662 lpfc_post_init_setup(struct lpfc_hba *phba)
7663 {
7664         struct Scsi_Host  *shost;
7665         struct lpfc_adapter_event_header adapter_event;
7666
7667         /* Get the default values for Model Name and Description */
7668         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7669
7670         /*
7671          * hba setup may have changed the hba_queue_depth so we need to
7672          * adjust the value of can_queue.
7673          */
7674         shost = pci_get_drvdata(phba->pcidev);
7675         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7676
7677         lpfc_host_attrib_init(shost);
7678
7679         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7680                 spin_lock_irq(shost->host_lock);
7681                 lpfc_poll_start_timer(phba);
7682                 spin_unlock_irq(shost->host_lock);
7683         }
7684
7685         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7686                         "0428 Perform SCSI scan\n");
7687         /* Send board arrival event to upper layer */
7688         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7689         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7690         fc_host_post_vendor_event(shost, fc_get_event_number(),
7691                                   sizeof(adapter_event),
7692                                   (char *) &adapter_event,
7693                                   LPFC_NL_VENDOR_ID);
7694         return;
7695 }
7696
7697 /**
7698  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7699  * @phba: pointer to lpfc hba data structure.
7700  *
7701  * This routine is invoked to set up the PCI device memory space for device
7702  * with SLI-3 interface spec.
7703  *
7704  * Return codes
7705  *      0 - successful
7706  *      other values - error
7707  **/
7708 static int
7709 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7710 {
7711         struct pci_dev *pdev = phba->pcidev;
7712         unsigned long bar0map_len, bar2map_len;
7713         int i, hbq_count;
7714         void *ptr;
7715         int error;
7716
7717         if (!pdev)
7718                 return -ENODEV;
7719
7720         /* Set the device DMA mask size */
7721         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7722         if (error)
7723                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7724         if (error)
7725                 return error;
7726         error = -ENODEV;
7727
7728         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7729          * required by each mapping.
7730          */
7731         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7732         bar0map_len = pci_resource_len(pdev, 0);
7733
7734         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7735         bar2map_len = pci_resource_len(pdev, 2);
7736
7737         /* Map HBA SLIM to a kernel virtual address. */
7738         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7739         if (!phba->slim_memmap_p) {
7740                 dev_printk(KERN_ERR, &pdev->dev,
7741                            "ioremap failed for SLIM memory.\n");
7742                 goto out;
7743         }
7744
7745         /* Map HBA Control Registers to a kernel virtual address. */
7746         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7747         if (!phba->ctrl_regs_memmap_p) {
7748                 dev_printk(KERN_ERR, &pdev->dev,
7749                            "ioremap failed for HBA control registers.\n");
7750                 goto out_iounmap_slim;
7751         }
7752
7753         /* Allocate memory for SLI-2 structures */
7754         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7755                                                &phba->slim2p.phys, GFP_KERNEL);
7756         if (!phba->slim2p.virt)
7757                 goto out_iounmap;
7758
7759         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7760         phba->mbox_ext = (phba->slim2p.virt +
7761                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7762         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7763         phba->IOCBs = (phba->slim2p.virt +
7764                        offsetof(struct lpfc_sli2_slim, IOCBs));
7765
7766         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7767                                                  lpfc_sli_hbq_size(),
7768                                                  &phba->hbqslimp.phys,
7769                                                  GFP_KERNEL);
7770         if (!phba->hbqslimp.virt)
7771                 goto out_free_slim;
7772
7773         hbq_count = lpfc_sli_hbq_count();
7774         ptr = phba->hbqslimp.virt;
7775         for (i = 0; i < hbq_count; ++i) {
7776                 phba->hbqs[i].hbq_virt = ptr;
7777                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7778                 ptr += (lpfc_hbq_defs[i]->entry_count *
7779                         sizeof(struct lpfc_hbq_entry));
7780         }
7781         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7782         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7783
7784         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7785
7786         phba->MBslimaddr = phba->slim_memmap_p;
7787         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7788         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7789         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7790         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7791
7792         return 0;
7793
7794 out_free_slim:
7795         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7796                           phba->slim2p.virt, phba->slim2p.phys);
7797 out_iounmap:
7798         iounmap(phba->ctrl_regs_memmap_p);
7799 out_iounmap_slim:
7800         iounmap(phba->slim_memmap_p);
7801 out:
7802         return error;
7803 }
7804
7805 /**
7806  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7807  * @phba: pointer to lpfc hba data structure.
7808  *
7809  * This routine is invoked to unset the PCI device memory space for device
7810  * with SLI-3 interface spec.
7811  **/
7812 static void
7813 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7814 {
7815         struct pci_dev *pdev;
7816
7817         /* Obtain PCI device reference */
7818         if (!phba->pcidev)
7819                 return;
7820         else
7821                 pdev = phba->pcidev;
7822
7823         /* Free coherent DMA memory allocated */
7824         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7825                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7826         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7827                           phba->slim2p.virt, phba->slim2p.phys);
7828
7829         /* I/O memory unmap */
7830         iounmap(phba->ctrl_regs_memmap_p);
7831         iounmap(phba->slim_memmap_p);
7832
7833         return;
7834 }
7835
7836 /**
7837  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7838  * @phba: pointer to lpfc hba data structure.
7839  *
7840  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7841  * done and check status.
7842  *
7843  * Return 0 if successful, otherwise -ENODEV.
7844  **/
7845 int
7846 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7847 {
7848         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7849         struct lpfc_register reg_data;
7850         int i, port_error = 0;
7851         uint32_t if_type;
7852
7853         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7854         memset(&reg_data, 0, sizeof(reg_data));
7855         if (!phba->sli4_hba.PSMPHRregaddr)
7856                 return -ENODEV;
7857
7858         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7859         for (i = 0; i < 3000; i++) {
7860                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7861                         &portsmphr_reg.word0) ||
7862                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7863                         /* Port has a fatal POST error, break out */
7864                         port_error = -ENODEV;
7865                         break;
7866                 }
7867                 if (LPFC_POST_STAGE_PORT_READY ==
7868                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7869                         break;
7870                 msleep(10);
7871         }
7872
7873         /*
7874          * If there was a port error during POST, then don't proceed with
7875          * other register reads as the data may not be valid.  Just exit.
7876          */
7877         if (port_error) {
7878                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7879                         "1408 Port Failed POST - portsmphr=0x%x, "
7880                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7881                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7882                         portsmphr_reg.word0,
7883                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7884                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7885                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7886                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7887                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7888                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7889                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7890                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7891         } else {
7892                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7893                                 "2534 Device Info: SLIFamily=0x%x, "
7894                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7895                                 "SLIHint_2=0x%x, FT=0x%x\n",
7896                                 bf_get(lpfc_sli_intf_sli_family,
7897                                        &phba->sli4_hba.sli_intf),
7898                                 bf_get(lpfc_sli_intf_slirev,
7899                                        &phba->sli4_hba.sli_intf),
7900                                 bf_get(lpfc_sli_intf_if_type,
7901                                        &phba->sli4_hba.sli_intf),
7902                                 bf_get(lpfc_sli_intf_sli_hint1,
7903                                        &phba->sli4_hba.sli_intf),
7904                                 bf_get(lpfc_sli_intf_sli_hint2,
7905                                        &phba->sli4_hba.sli_intf),
7906                                 bf_get(lpfc_sli_intf_func_type,
7907                                        &phba->sli4_hba.sli_intf));
7908                 /*
7909                  * Check for other Port errors during the initialization
7910                  * process.  Fail the load if the port did not come up
7911                  * correctly.
7912                  */
7913                 if_type = bf_get(lpfc_sli_intf_if_type,
7914                                  &phba->sli4_hba.sli_intf);
7915                 switch (if_type) {
7916                 case LPFC_SLI_INTF_IF_TYPE_0:
7917                         phba->sli4_hba.ue_mask_lo =
7918                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7919                         phba->sli4_hba.ue_mask_hi =
7920                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7921                         uerrlo_reg.word0 =
7922                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7923                         uerrhi_reg.word0 =
7924                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7925                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7926                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7927                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7928                                                 "1422 Unrecoverable Error "
7929                                                 "Detected during POST "
7930                                                 "uerr_lo_reg=0x%x, "
7931                                                 "uerr_hi_reg=0x%x, "
7932                                                 "ue_mask_lo_reg=0x%x, "
7933                                                 "ue_mask_hi_reg=0x%x\n",
7934                                                 uerrlo_reg.word0,
7935                                                 uerrhi_reg.word0,
7936                                                 phba->sli4_hba.ue_mask_lo,
7937                                                 phba->sli4_hba.ue_mask_hi);
7938                                 port_error = -ENODEV;
7939                         }
7940                         break;
7941                 case LPFC_SLI_INTF_IF_TYPE_2:
7942                 case LPFC_SLI_INTF_IF_TYPE_6:
7943                         /* Final checks.  The port status should be clean. */
7944                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7945                                 &reg_data.word0) ||
7946                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7947                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7948                                 phba->work_status[0] =
7949                                         readl(phba->sli4_hba.u.if_type2.
7950                                               ERR1regaddr);
7951                                 phba->work_status[1] =
7952                                         readl(phba->sli4_hba.u.if_type2.
7953                                               ERR2regaddr);
7954                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7955                                         "2888 Unrecoverable port error "
7956                                         "following POST: port status reg "
7957                                         "0x%x, port_smphr reg 0x%x, "
7958                                         "error 1=0x%x, error 2=0x%x\n",
7959                                         reg_data.word0,
7960                                         portsmphr_reg.word0,
7961                                         phba->work_status[0],
7962                                         phba->work_status[1]);
7963                                 port_error = -ENODEV;
7964                         }
7965                         break;
7966                 case LPFC_SLI_INTF_IF_TYPE_1:
7967                 default:
7968                         break;
7969                 }
7970         }
7971         return port_error;
7972 }
7973
7974 /**
7975  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7976  * @phba: pointer to lpfc hba data structure.
7977  * @if_type:  The SLI4 interface type getting configured.
7978  *
7979  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7980  * memory map.
7981  **/
7982 static void
7983 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7984 {
7985         switch (if_type) {
7986         case LPFC_SLI_INTF_IF_TYPE_0:
7987                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7988                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7989                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7990                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7991                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7992                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7993                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7994                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7995                 phba->sli4_hba.SLIINTFregaddr =
7996                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7997                 break;
7998         case LPFC_SLI_INTF_IF_TYPE_2:
7999                 phba->sli4_hba.u.if_type2.EQDregaddr =
8000                         phba->sli4_hba.conf_regs_memmap_p +
8001                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8002                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8003                         phba->sli4_hba.conf_regs_memmap_p +
8004                                                 LPFC_CTL_PORT_ER1_OFFSET;
8005                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8006                         phba->sli4_hba.conf_regs_memmap_p +
8007                                                 LPFC_CTL_PORT_ER2_OFFSET;
8008                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8009                         phba->sli4_hba.conf_regs_memmap_p +
8010                                                 LPFC_CTL_PORT_CTL_OFFSET;
8011                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8012                         phba->sli4_hba.conf_regs_memmap_p +
8013                                                 LPFC_CTL_PORT_STA_OFFSET;
8014                 phba->sli4_hba.SLIINTFregaddr =
8015                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8016                 phba->sli4_hba.PSMPHRregaddr =
8017                         phba->sli4_hba.conf_regs_memmap_p +
8018                                                 LPFC_CTL_PORT_SEM_OFFSET;
8019                 phba->sli4_hba.RQDBregaddr =
8020                         phba->sli4_hba.conf_regs_memmap_p +
8021                                                 LPFC_ULP0_RQ_DOORBELL;
8022                 phba->sli4_hba.WQDBregaddr =
8023                         phba->sli4_hba.conf_regs_memmap_p +
8024                                                 LPFC_ULP0_WQ_DOORBELL;
8025                 phba->sli4_hba.CQDBregaddr =
8026                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8027                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8028                 phba->sli4_hba.MQDBregaddr =
8029                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8030                 phba->sli4_hba.BMBXregaddr =
8031                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8032                 break;
8033         case LPFC_SLI_INTF_IF_TYPE_6:
8034                 phba->sli4_hba.u.if_type2.EQDregaddr =
8035                         phba->sli4_hba.conf_regs_memmap_p +
8036                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8037                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8038                         phba->sli4_hba.conf_regs_memmap_p +
8039                                                 LPFC_CTL_PORT_ER1_OFFSET;
8040                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8041                         phba->sli4_hba.conf_regs_memmap_p +
8042                                                 LPFC_CTL_PORT_ER2_OFFSET;
8043                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8044                         phba->sli4_hba.conf_regs_memmap_p +
8045                                                 LPFC_CTL_PORT_CTL_OFFSET;
8046                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8047                         phba->sli4_hba.conf_regs_memmap_p +
8048                                                 LPFC_CTL_PORT_STA_OFFSET;
8049                 phba->sli4_hba.PSMPHRregaddr =
8050                         phba->sli4_hba.conf_regs_memmap_p +
8051                                                 LPFC_CTL_PORT_SEM_OFFSET;
8052                 phba->sli4_hba.BMBXregaddr =
8053                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8054                 break;
8055         case LPFC_SLI_INTF_IF_TYPE_1:
8056         default:
8057                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8058                            "FATAL - unsupported SLI4 interface type - %d\n",
8059                            if_type);
8060                 break;
8061         }
8062 }
8063
8064 /**
8065  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8066  * @phba: pointer to lpfc hba data structure.
8067  *
8068  * This routine is invoked to set up SLI4 BAR1 register memory map.
8069  **/
8070 static void
8071 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8072 {
8073         switch (if_type) {
8074         case LPFC_SLI_INTF_IF_TYPE_0:
8075                 phba->sli4_hba.PSMPHRregaddr =
8076                         phba->sli4_hba.ctrl_regs_memmap_p +
8077                         LPFC_SLIPORT_IF0_SMPHR;
8078                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8079                         LPFC_HST_ISR0;
8080                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8081                         LPFC_HST_IMR0;
8082                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8083                         LPFC_HST_ISCR0;
8084                 break;
8085         case LPFC_SLI_INTF_IF_TYPE_6:
8086                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8087                         LPFC_IF6_RQ_DOORBELL;
8088                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8089                         LPFC_IF6_WQ_DOORBELL;
8090                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8091                         LPFC_IF6_CQ_DOORBELL;
8092                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8093                         LPFC_IF6_EQ_DOORBELL;
8094                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8095                         LPFC_IF6_MQ_DOORBELL;
8096                 break;
8097         case LPFC_SLI_INTF_IF_TYPE_2:
8098         case LPFC_SLI_INTF_IF_TYPE_1:
8099         default:
8100                 dev_err(&phba->pcidev->dev,
8101                            "FATAL - unsupported SLI4 interface type - %d\n",
8102                            if_type);
8103                 break;
8104         }
8105 }
8106
8107 /**
8108  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8109  * @phba: pointer to lpfc hba data structure.
8110  * @vf: virtual function number
8111  *
8112  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8113  * based on the given viftual function number, @vf.
8114  *
8115  * Return 0 if successful, otherwise -ENODEV.
8116  **/
8117 static int
8118 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8119 {
8120         if (vf > LPFC_VIR_FUNC_MAX)
8121                 return -ENODEV;
8122
8123         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8124                                 vf * LPFC_VFR_PAGE_SIZE +
8125                                         LPFC_ULP0_RQ_DOORBELL);
8126         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8127                                 vf * LPFC_VFR_PAGE_SIZE +
8128                                         LPFC_ULP0_WQ_DOORBELL);
8129         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8130                                 vf * LPFC_VFR_PAGE_SIZE +
8131                                         LPFC_EQCQ_DOORBELL);
8132         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8133         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8134                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8135         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8136                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8137         return 0;
8138 }
8139
8140 /**
8141  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8142  * @phba: pointer to lpfc hba data structure.
8143  *
8144  * This routine is invoked to create the bootstrap mailbox
8145  * region consistent with the SLI-4 interface spec.  This
8146  * routine allocates all memory necessary to communicate
8147  * mailbox commands to the port and sets up all alignment
8148  * needs.  No locks are expected to be held when calling
8149  * this routine.
8150  *
8151  * Return codes
8152  *      0 - successful
8153  *      -ENOMEM - could not allocated memory.
8154  **/
8155 static int
8156 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8157 {
8158         uint32_t bmbx_size;
8159         struct lpfc_dmabuf *dmabuf;
8160         struct dma_address *dma_address;
8161         uint32_t pa_addr;
8162         uint64_t phys_addr;
8163
8164         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8165         if (!dmabuf)
8166                 return -ENOMEM;
8167
8168         /*
8169          * The bootstrap mailbox region is comprised of 2 parts
8170          * plus an alignment restriction of 16 bytes.
8171          */
8172         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8173         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8174                                           &dmabuf->phys, GFP_KERNEL);
8175         if (!dmabuf->virt) {
8176                 kfree(dmabuf);
8177                 return -ENOMEM;
8178         }
8179
8180         /*
8181          * Initialize the bootstrap mailbox pointers now so that the register
8182          * operations are simple later.  The mailbox dma address is required
8183          * to be 16-byte aligned.  Also align the virtual memory as each
8184          * maibox is copied into the bmbx mailbox region before issuing the
8185          * command to the port.
8186          */
8187         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8188         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8189
8190         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8191                                               LPFC_ALIGN_16_BYTE);
8192         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8193                                               LPFC_ALIGN_16_BYTE);
8194
8195         /*
8196          * Set the high and low physical addresses now.  The SLI4 alignment
8197          * requirement is 16 bytes and the mailbox is posted to the port
8198          * as two 30-bit addresses.  The other data is a bit marking whether
8199          * the 30-bit address is the high or low address.
8200          * Upcast bmbx aphys to 64bits so shift instruction compiles
8201          * clean on 32 bit machines.
8202          */
8203         dma_address = &phba->sli4_hba.bmbx.dma_address;
8204         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8205         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8206         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8207                                            LPFC_BMBX_BIT1_ADDR_HI);
8208
8209         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8210         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8211                                            LPFC_BMBX_BIT1_ADDR_LO);
8212         return 0;
8213 }
8214
8215 /**
8216  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8217  * @phba: pointer to lpfc hba data structure.
8218  *
8219  * This routine is invoked to teardown the bootstrap mailbox
8220  * region and release all host resources. This routine requires
8221  * the caller to ensure all mailbox commands recovered, no
8222  * additional mailbox comands are sent, and interrupts are disabled
8223  * before calling this routine.
8224  *
8225  **/
8226 static void
8227 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8228 {
8229         dma_free_coherent(&phba->pcidev->dev,
8230                           phba->sli4_hba.bmbx.bmbx_size,
8231                           phba->sli4_hba.bmbx.dmabuf->virt,
8232                           phba->sli4_hba.bmbx.dmabuf->phys);
8233
8234         kfree(phba->sli4_hba.bmbx.dmabuf);
8235         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8236 }
8237
8238 /**
8239  * lpfc_sli4_read_config - Get the config parameters.
8240  * @phba: pointer to lpfc hba data structure.
8241  *
8242  * This routine is invoked to read the configuration parameters from the HBA.
8243  * The configuration parameters are used to set the base and maximum values
8244  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8245  * allocation for the port.
8246  *
8247  * Return codes
8248  *      0 - successful
8249  *      -ENOMEM - No available memory
8250  *      -EIO - The mailbox failed to complete successfully.
8251  **/
8252 int
8253 lpfc_sli4_read_config(struct lpfc_hba *phba)
8254 {
8255         LPFC_MBOXQ_t *pmb;
8256         struct lpfc_mbx_read_config *rd_config;
8257         union  lpfc_sli4_cfg_shdr *shdr;
8258         uint32_t shdr_status, shdr_add_status;
8259         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8260         struct lpfc_rsrc_desc_fcfcoe *desc;
8261         char *pdesc_0;
8262         uint16_t forced_link_speed;
8263         uint32_t if_type, qmin;
8264         int length, i, rc = 0, rc2;
8265
8266         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8267         if (!pmb) {
8268                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8269                                 "2011 Unable to allocate memory for issuing "
8270                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8271                 return -ENOMEM;
8272         }
8273
8274         lpfc_read_config(phba, pmb);
8275
8276         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8277         if (rc != MBX_SUCCESS) {
8278                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8279                         "2012 Mailbox failed , mbxCmd x%x "
8280                         "READ_CONFIG, mbxStatus x%x\n",
8281                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8282                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8283                 rc = -EIO;
8284         } else {
8285                 rd_config = &pmb->u.mqe.un.rd_config;
8286                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8287                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8288                         phba->sli4_hba.lnk_info.lnk_tp =
8289                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8290                         phba->sli4_hba.lnk_info.lnk_no =
8291                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8292                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8293                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8294                                         phba->sli4_hba.lnk_info.lnk_tp,
8295                                         phba->sli4_hba.lnk_info.lnk_no);
8296                 } else
8297                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8298                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8299                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8300                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8301                         phba->bbcredit_support = 1;
8302                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8303                 }
8304
8305                 phba->sli4_hba.conf_trunk =
8306                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8307                 phba->sli4_hba.extents_in_use =
8308                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8309                 phba->sli4_hba.max_cfg_param.max_xri =
8310                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8311                 /* Reduce resource usage in kdump environment */
8312                 if (is_kdump_kernel() &&
8313                     phba->sli4_hba.max_cfg_param.max_xri > 512)
8314                         phba->sli4_hba.max_cfg_param.max_xri = 512;
8315                 phba->sli4_hba.max_cfg_param.xri_base =
8316                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8317                 phba->sli4_hba.max_cfg_param.max_vpi =
8318                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8319                 /* Limit the max we support */
8320                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8321                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8322                 phba->sli4_hba.max_cfg_param.vpi_base =
8323                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8324                 phba->sli4_hba.max_cfg_param.max_rpi =
8325                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8326                 phba->sli4_hba.max_cfg_param.rpi_base =
8327                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8328                 phba->sli4_hba.max_cfg_param.max_vfi =
8329                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8330                 phba->sli4_hba.max_cfg_param.vfi_base =
8331                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8332                 phba->sli4_hba.max_cfg_param.max_fcfi =
8333                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8334                 phba->sli4_hba.max_cfg_param.max_eq =
8335                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8336                 phba->sli4_hba.max_cfg_param.max_rq =
8337                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8338                 phba->sli4_hba.max_cfg_param.max_wq =
8339                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8340                 phba->sli4_hba.max_cfg_param.max_cq =
8341                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8342                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8343                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8344                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8345                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8346                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8347                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8348                 phba->max_vports = phba->max_vpi;
8349                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8350                                 "2003 cfg params Extents? %d "
8351                                 "XRI(B:%d M:%d), "
8352                                 "VPI(B:%d M:%d) "
8353                                 "VFI(B:%d M:%d) "
8354                                 "RPI(B:%d M:%d) "
8355                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8356                                 phba->sli4_hba.extents_in_use,
8357                                 phba->sli4_hba.max_cfg_param.xri_base,
8358                                 phba->sli4_hba.max_cfg_param.max_xri,
8359                                 phba->sli4_hba.max_cfg_param.vpi_base,
8360                                 phba->sli4_hba.max_cfg_param.max_vpi,
8361                                 phba->sli4_hba.max_cfg_param.vfi_base,
8362                                 phba->sli4_hba.max_cfg_param.max_vfi,
8363                                 phba->sli4_hba.max_cfg_param.rpi_base,
8364                                 phba->sli4_hba.max_cfg_param.max_rpi,
8365                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8366                                 phba->sli4_hba.max_cfg_param.max_eq,
8367                                 phba->sli4_hba.max_cfg_param.max_cq,
8368                                 phba->sli4_hba.max_cfg_param.max_wq,
8369                                 phba->sli4_hba.max_cfg_param.max_rq);
8370
8371                 /*
8372                  * Calculate queue resources based on how
8373                  * many WQ/CQ/EQs are available.
8374                  */
8375                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8376                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8377                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8378                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8379                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8380                 /*
8381                  * Whats left after this can go toward NVME / FCP.
8382                  * The minus 4 accounts for ELS, NVME LS, MBOX
8383                  * plus one extra. When configured for
8384                  * NVMET, FCP io channel WQs are not created.
8385                  */
8386                 qmin -= 4;
8387
8388                 /* Check to see if there is enough for NVME */
8389                 if ((phba->cfg_irq_chann > qmin) ||
8390                     (phba->cfg_hdw_queue > qmin)) {
8391                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8392                                         "2005 Reducing Queues: "
8393                                         "WQ %d CQ %d EQ %d: min %d: "
8394                                         "IRQ %d HDWQ %d\n",
8395                                         phba->sli4_hba.max_cfg_param.max_wq,
8396                                         phba->sli4_hba.max_cfg_param.max_cq,
8397                                         phba->sli4_hba.max_cfg_param.max_eq,
8398                                         qmin, phba->cfg_irq_chann,
8399                                         phba->cfg_hdw_queue);
8400
8401                         if (phba->cfg_irq_chann > qmin)
8402                                 phba->cfg_irq_chann = qmin;
8403                         if (phba->cfg_hdw_queue > qmin)
8404                                 phba->cfg_hdw_queue = qmin;
8405                 }
8406         }
8407
8408         if (rc)
8409                 goto read_cfg_out;
8410
8411         /* Update link speed if forced link speed is supported */
8412         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8413         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8414                 forced_link_speed =
8415                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8416                 if (forced_link_speed) {
8417                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8418
8419                         switch (forced_link_speed) {
8420                         case LINK_SPEED_1G:
8421                                 phba->cfg_link_speed =
8422                                         LPFC_USER_LINK_SPEED_1G;
8423                                 break;
8424                         case LINK_SPEED_2G:
8425                                 phba->cfg_link_speed =
8426                                         LPFC_USER_LINK_SPEED_2G;
8427                                 break;
8428                         case LINK_SPEED_4G:
8429                                 phba->cfg_link_speed =
8430                                         LPFC_USER_LINK_SPEED_4G;
8431                                 break;
8432                         case LINK_SPEED_8G:
8433                                 phba->cfg_link_speed =
8434                                         LPFC_USER_LINK_SPEED_8G;
8435                                 break;
8436                         case LINK_SPEED_10G:
8437                                 phba->cfg_link_speed =
8438                                         LPFC_USER_LINK_SPEED_10G;
8439                                 break;
8440                         case LINK_SPEED_16G:
8441                                 phba->cfg_link_speed =
8442                                         LPFC_USER_LINK_SPEED_16G;
8443                                 break;
8444                         case LINK_SPEED_32G:
8445                                 phba->cfg_link_speed =
8446                                         LPFC_USER_LINK_SPEED_32G;
8447                                 break;
8448                         case LINK_SPEED_64G:
8449                                 phba->cfg_link_speed =
8450                                         LPFC_USER_LINK_SPEED_64G;
8451                                 break;
8452                         case 0xffff:
8453                                 phba->cfg_link_speed =
8454                                         LPFC_USER_LINK_SPEED_AUTO;
8455                                 break;
8456                         default:
8457                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8458                                                 "0047 Unrecognized link "
8459                                                 "speed : %d\n",
8460                                                 forced_link_speed);
8461                                 phba->cfg_link_speed =
8462                                         LPFC_USER_LINK_SPEED_AUTO;
8463                         }
8464                 }
8465         }
8466
8467         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8468         length = phba->sli4_hba.max_cfg_param.max_xri -
8469                         lpfc_sli4_get_els_iocb_cnt(phba);
8470         if (phba->cfg_hba_queue_depth > length) {
8471                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8472                                 "3361 HBA queue depth changed from %d to %d\n",
8473                                 phba->cfg_hba_queue_depth, length);
8474                 phba->cfg_hba_queue_depth = length;
8475         }
8476
8477         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8478             LPFC_SLI_INTF_IF_TYPE_2)
8479                 goto read_cfg_out;
8480
8481         /* get the pf# and vf# for SLI4 if_type 2 port */
8482         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8483                   sizeof(struct lpfc_sli4_cfg_mhdr));
8484         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8485                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8486                          length, LPFC_SLI4_MBX_EMBED);
8487
8488         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8489         shdr = (union lpfc_sli4_cfg_shdr *)
8490                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8491         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8492         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8493         if (rc2 || shdr_status || shdr_add_status) {
8494                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8495                                 "3026 Mailbox failed , mbxCmd x%x "
8496                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8497                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8498                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8499                 goto read_cfg_out;
8500         }
8501
8502         /* search for fc_fcoe resrouce descriptor */
8503         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8504
8505         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8506         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8507         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8508         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8509                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8510         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8511                 goto read_cfg_out;
8512
8513         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8514                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8515                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8516                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8517                         phba->sli4_hba.iov.pf_number =
8518                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8519                         phba->sli4_hba.iov.vf_number =
8520                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8521                         break;
8522                 }
8523         }
8524
8525         if (i < LPFC_RSRC_DESC_MAX_NUM)
8526                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8527                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8528                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8529                                 phba->sli4_hba.iov.vf_number);
8530         else
8531                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8532                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8533                                 "Resource Descriptor:x%x\n",
8534                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8535
8536 read_cfg_out:
8537         mempool_free(pmb, phba->mbox_mem_pool);
8538         return rc;
8539 }
8540
8541 /**
8542  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8543  * @phba: pointer to lpfc hba data structure.
8544  *
8545  * This routine is invoked to setup the port-side endian order when
8546  * the port if_type is 0.  This routine has no function for other
8547  * if_types.
8548  *
8549  * Return codes
8550  *      0 - successful
8551  *      -ENOMEM - No available memory
8552  *      -EIO - The mailbox failed to complete successfully.
8553  **/
8554 static int
8555 lpfc_setup_endian_order(struct lpfc_hba *phba)
8556 {
8557         LPFC_MBOXQ_t *mboxq;
8558         uint32_t if_type, rc = 0;
8559         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8560                                       HOST_ENDIAN_HIGH_WORD1};
8561
8562         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8563         switch (if_type) {
8564         case LPFC_SLI_INTF_IF_TYPE_0:
8565                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8566                                                        GFP_KERNEL);
8567                 if (!mboxq) {
8568                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8569                                         "0492 Unable to allocate memory for "
8570                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8571                                         "command\n");
8572                         return -ENOMEM;
8573                 }
8574
8575                 /*
8576                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8577                  * two words to contain special data values and no other data.
8578                  */
8579                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8580                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8581                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8582                 if (rc != MBX_SUCCESS) {
8583                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8584                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8585                                         "failed with status x%x\n",
8586                                         rc);
8587                         rc = -EIO;
8588                 }
8589                 mempool_free(mboxq, phba->mbox_mem_pool);
8590                 break;
8591         case LPFC_SLI_INTF_IF_TYPE_6:
8592         case LPFC_SLI_INTF_IF_TYPE_2:
8593         case LPFC_SLI_INTF_IF_TYPE_1:
8594         default:
8595                 break;
8596         }
8597         return rc;
8598 }
8599
8600 /**
8601  * lpfc_sli4_queue_verify - Verify and update EQ counts
8602  * @phba: pointer to lpfc hba data structure.
8603  *
8604  * This routine is invoked to check the user settable queue counts for EQs.
8605  * After this routine is called the counts will be set to valid values that
8606  * adhere to the constraints of the system's interrupt vectors and the port's
8607  * queue resources.
8608  *
8609  * Return codes
8610  *      0 - successful
8611  *      -ENOMEM - No available memory
8612  **/
8613 static int
8614 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8615 {
8616         /*
8617          * Sanity check for configured queue parameters against the run-time
8618          * device parameters
8619          */
8620
8621         if (phba->nvmet_support) {
8622                 if (phba->cfg_irq_chann < phba->cfg_nvmet_mrq)
8623                         phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
8624                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8625                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8626         }
8627
8628         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8629                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8630                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8631                         phba->cfg_nvmet_mrq);
8632
8633         /* Get EQ depth from module parameter, fake the default for now */
8634         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8635         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8636
8637         /* Get CQ depth from module parameter, fake the default for now */
8638         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8639         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8640         return 0;
8641 }
8642
8643 static int
8644 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8645 {
8646         struct lpfc_queue *qdesc;
8647         u32 wqesize;
8648         int cpu;
8649
8650         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8651         /* Create Fast Path IO CQs */
8652         if (phba->enab_exp_wqcq_pages)
8653                 /* Increase the CQ size when WQEs contain an embedded cdb */
8654                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8655                                               phba->sli4_hba.cq_esize,
8656                                               LPFC_CQE_EXP_COUNT, cpu);
8657
8658         else
8659                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8660                                               phba->sli4_hba.cq_esize,
8661                                               phba->sli4_hba.cq_ecount, cpu);
8662         if (!qdesc) {
8663                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8664                         "0499 Failed allocate fast-path IO CQ (%d)\n", idx);
8665                 return 1;
8666         }
8667         qdesc->qe_valid = 1;
8668         qdesc->hdwq = idx;
8669         qdesc->chann = cpu;
8670         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8671
8672         /* Create Fast Path IO WQs */
8673         if (phba->enab_exp_wqcq_pages) {
8674                 /* Increase the WQ size when WQEs contain an embedded cdb */
8675                 wqesize = (phba->fcp_embed_io) ?
8676                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8677                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8678                                               wqesize,
8679                                               LPFC_WQE_EXP_COUNT, cpu);
8680         } else
8681                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8682                                               phba->sli4_hba.wq_esize,
8683                                               phba->sli4_hba.wq_ecount, cpu);
8684
8685         if (!qdesc) {
8686                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8687                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
8688                                 idx);
8689                 return 1;
8690         }
8691         qdesc->hdwq = idx;
8692         qdesc->chann = cpu;
8693         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8694         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8695         return 0;
8696 }
8697
8698 /**
8699  * lpfc_sli4_queue_create - Create all the SLI4 queues
8700  * @phba: pointer to lpfc hba data structure.
8701  *
8702  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8703  * operation. For each SLI4 queue type, the parameters such as queue entry
8704  * count (queue depth) shall be taken from the module parameter. For now,
8705  * we just use some constant number as place holder.
8706  *
8707  * Return codes
8708  *      0 - successful
8709  *      -ENOMEM - No availble memory
8710  *      -EIO - The mailbox failed to complete successfully.
8711  **/
8712 int
8713 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8714 {
8715         struct lpfc_queue *qdesc;
8716         int idx, cpu, eqcpu;
8717         struct lpfc_sli4_hdw_queue *qp;
8718         struct lpfc_vector_map_info *cpup;
8719         struct lpfc_vector_map_info *eqcpup;
8720         struct lpfc_eq_intr_info *eqi;
8721
8722         /*
8723          * Create HBA Record arrays.
8724          * Both NVME and FCP will share that same vectors / EQs
8725          */
8726         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8727         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8728         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8729         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8730         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8731         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8732         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8733         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8734         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8735         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8736
8737         if (!phba->sli4_hba.hdwq) {
8738                 phba->sli4_hba.hdwq = kcalloc(
8739                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8740                         GFP_KERNEL);
8741                 if (!phba->sli4_hba.hdwq) {
8742                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8743                                         "6427 Failed allocate memory for "
8744                                         "fast-path Hardware Queue array\n");
8745                         goto out_error;
8746                 }
8747                 /* Prepare hardware queues to take IO buffers */
8748                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8749                         qp = &phba->sli4_hba.hdwq[idx];
8750                         spin_lock_init(&qp->io_buf_list_get_lock);
8751                         spin_lock_init(&qp->io_buf_list_put_lock);
8752                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8753                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8754                         qp->get_io_bufs = 0;
8755                         qp->put_io_bufs = 0;
8756                         qp->total_io_bufs = 0;
8757                         spin_lock_init(&qp->abts_io_buf_list_lock);
8758                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
8759                         qp->abts_scsi_io_bufs = 0;
8760                         qp->abts_nvme_io_bufs = 0;
8761                         INIT_LIST_HEAD(&qp->sgl_list);
8762                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
8763                         spin_lock_init(&qp->hdwq_lock);
8764                 }
8765         }
8766
8767         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8768                 if (phba->nvmet_support) {
8769                         phba->sli4_hba.nvmet_cqset = kcalloc(
8770                                         phba->cfg_nvmet_mrq,
8771                                         sizeof(struct lpfc_queue *),
8772                                         GFP_KERNEL);
8773                         if (!phba->sli4_hba.nvmet_cqset) {
8774                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8775                                         "3121 Fail allocate memory for "
8776                                         "fast-path CQ set array\n");
8777                                 goto out_error;
8778                         }
8779                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8780                                         phba->cfg_nvmet_mrq,
8781                                         sizeof(struct lpfc_queue *),
8782                                         GFP_KERNEL);
8783                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8784                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8785                                         "3122 Fail allocate memory for "
8786                                         "fast-path RQ set hdr array\n");
8787                                 goto out_error;
8788                         }
8789                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8790                                         phba->cfg_nvmet_mrq,
8791                                         sizeof(struct lpfc_queue *),
8792                                         GFP_KERNEL);
8793                         if (!phba->sli4_hba.nvmet_mrq_data) {
8794                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8795                                         "3124 Fail allocate memory for "
8796                                         "fast-path RQ set data array\n");
8797                                 goto out_error;
8798                         }
8799                 }
8800         }
8801
8802         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8803
8804         /* Create HBA Event Queues (EQs) */
8805         for_each_present_cpu(cpu) {
8806                 /* We only want to create 1 EQ per vector, even though
8807                  * multiple CPUs might be using that vector. so only
8808                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8809                  */
8810                 cpup = &phba->sli4_hba.cpu_map[cpu];
8811                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8812                         continue;
8813
8814                 /* Get a ptr to the Hardware Queue associated with this CPU */
8815                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8816
8817                 /* Allocate an EQ */
8818                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8819                                               phba->sli4_hba.eq_esize,
8820                                               phba->sli4_hba.eq_ecount, cpu);
8821                 if (!qdesc) {
8822                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8823                                         "0497 Failed allocate EQ (%d)\n",
8824                                         cpup->hdwq);
8825                         goto out_error;
8826                 }
8827                 qdesc->qe_valid = 1;
8828                 qdesc->hdwq = cpup->hdwq;
8829                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
8830                 qdesc->last_cpu = qdesc->chann;
8831
8832                 /* Save the allocated EQ in the Hardware Queue */
8833                 qp->hba_eq = qdesc;
8834
8835                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8836                 list_add(&qdesc->cpu_list, &eqi->list);
8837         }
8838
8839         /* Now we need to populate the other Hardware Queues, that share
8840          * an IRQ vector, with the associated EQ ptr.
8841          */
8842         for_each_present_cpu(cpu) {
8843                 cpup = &phba->sli4_hba.cpu_map[cpu];
8844
8845                 /* Check for EQ already allocated in previous loop */
8846                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
8847                         continue;
8848
8849                 /* Check for multiple CPUs per hdwq */
8850                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8851                 if (qp->hba_eq)
8852                         continue;
8853
8854                 /* We need to share an EQ for this hdwq */
8855                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
8856                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
8857                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
8858         }
8859
8860         /* Allocate IO Path SLI4 CQ/WQs */
8861         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8862                 if (lpfc_alloc_io_wq_cq(phba, idx))
8863                         goto out_error;
8864         }
8865
8866         if (phba->nvmet_support) {
8867                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8868                         cpu = lpfc_find_cpu_handle(phba, idx,
8869                                                    LPFC_FIND_BY_HDWQ);
8870                         qdesc = lpfc_sli4_queue_alloc(phba,
8871                                                       LPFC_DEFAULT_PAGE_SIZE,
8872                                                       phba->sli4_hba.cq_esize,
8873                                                       phba->sli4_hba.cq_ecount,
8874                                                       cpu);
8875                         if (!qdesc) {
8876                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8877                                                 "3142 Failed allocate NVME "
8878                                                 "CQ Set (%d)\n", idx);
8879                                 goto out_error;
8880                         }
8881                         qdesc->qe_valid = 1;
8882                         qdesc->hdwq = idx;
8883                         qdesc->chann = cpu;
8884                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8885                 }
8886         }
8887
8888         /*
8889          * Create Slow Path Completion Queues (CQs)
8890          */
8891
8892         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
8893         /* Create slow-path Mailbox Command Complete Queue */
8894         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8895                                       phba->sli4_hba.cq_esize,
8896                                       phba->sli4_hba.cq_ecount, cpu);
8897         if (!qdesc) {
8898                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8899                                 "0500 Failed allocate slow-path mailbox CQ\n");
8900                 goto out_error;
8901         }
8902         qdesc->qe_valid = 1;
8903         phba->sli4_hba.mbx_cq = qdesc;
8904
8905         /* Create slow-path ELS Complete Queue */
8906         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8907                                       phba->sli4_hba.cq_esize,
8908                                       phba->sli4_hba.cq_ecount, cpu);
8909         if (!qdesc) {
8910                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8911                                 "0501 Failed allocate slow-path ELS CQ\n");
8912                 goto out_error;
8913         }
8914         qdesc->qe_valid = 1;
8915         qdesc->chann = cpu;
8916         phba->sli4_hba.els_cq = qdesc;
8917
8918
8919         /*
8920          * Create Slow Path Work Queues (WQs)
8921          */
8922
8923         /* Create Mailbox Command Queue */
8924
8925         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8926                                       phba->sli4_hba.mq_esize,
8927                                       phba->sli4_hba.mq_ecount, cpu);
8928         if (!qdesc) {
8929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8930                                 "0505 Failed allocate slow-path MQ\n");
8931                 goto out_error;
8932         }
8933         qdesc->chann = cpu;
8934         phba->sli4_hba.mbx_wq = qdesc;
8935
8936         /*
8937          * Create ELS Work Queues
8938          */
8939
8940         /* Create slow-path ELS Work Queue */
8941         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8942                                       phba->sli4_hba.wq_esize,
8943                                       phba->sli4_hba.wq_ecount, cpu);
8944         if (!qdesc) {
8945                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8946                                 "0504 Failed allocate slow-path ELS WQ\n");
8947                 goto out_error;
8948         }
8949         qdesc->chann = cpu;
8950         phba->sli4_hba.els_wq = qdesc;
8951         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8952
8953         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8954                 /* Create NVME LS Complete Queue */
8955                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8956                                               phba->sli4_hba.cq_esize,
8957                                               phba->sli4_hba.cq_ecount, cpu);
8958                 if (!qdesc) {
8959                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8960                                         "6079 Failed allocate NVME LS CQ\n");
8961                         goto out_error;
8962                 }
8963                 qdesc->chann = cpu;
8964                 qdesc->qe_valid = 1;
8965                 phba->sli4_hba.nvmels_cq = qdesc;
8966
8967                 /* Create NVME LS Work Queue */
8968                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8969                                               phba->sli4_hba.wq_esize,
8970                                               phba->sli4_hba.wq_ecount, cpu);
8971                 if (!qdesc) {
8972                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8973                                         "6080 Failed allocate NVME LS WQ\n");
8974                         goto out_error;
8975                 }
8976                 qdesc->chann = cpu;
8977                 phba->sli4_hba.nvmels_wq = qdesc;
8978                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8979         }
8980
8981         /*
8982          * Create Receive Queue (RQ)
8983          */
8984
8985         /* Create Receive Queue for header */
8986         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8987                                       phba->sli4_hba.rq_esize,
8988                                       phba->sli4_hba.rq_ecount, cpu);
8989         if (!qdesc) {
8990                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8991                                 "0506 Failed allocate receive HRQ\n");
8992                 goto out_error;
8993         }
8994         phba->sli4_hba.hdr_rq = qdesc;
8995
8996         /* Create Receive Queue for data */
8997         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8998                                       phba->sli4_hba.rq_esize,
8999                                       phba->sli4_hba.rq_ecount, cpu);
9000         if (!qdesc) {
9001                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9002                                 "0507 Failed allocate receive DRQ\n");
9003                 goto out_error;
9004         }
9005         phba->sli4_hba.dat_rq = qdesc;
9006
9007         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9008             phba->nvmet_support) {
9009                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9010                         cpu = lpfc_find_cpu_handle(phba, idx,
9011                                                    LPFC_FIND_BY_HDWQ);
9012                         /* Create NVMET Receive Queue for header */
9013                         qdesc = lpfc_sli4_queue_alloc(phba,
9014                                                       LPFC_DEFAULT_PAGE_SIZE,
9015                                                       phba->sli4_hba.rq_esize,
9016                                                       LPFC_NVMET_RQE_DEF_COUNT,
9017                                                       cpu);
9018                         if (!qdesc) {
9019                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9020                                                 "3146 Failed allocate "
9021                                                 "receive HRQ\n");
9022                                 goto out_error;
9023                         }
9024                         qdesc->hdwq = idx;
9025                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9026
9027                         /* Only needed for header of RQ pair */
9028                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9029                                                    GFP_KERNEL,
9030                                                    cpu_to_node(cpu));
9031                         if (qdesc->rqbp == NULL) {
9032                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9033                                                 "6131 Failed allocate "
9034                                                 "Header RQBP\n");
9035                                 goto out_error;
9036                         }
9037
9038                         /* Put list in known state in case driver load fails. */
9039                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9040
9041                         /* Create NVMET Receive Queue for data */
9042                         qdesc = lpfc_sli4_queue_alloc(phba,
9043                                                       LPFC_DEFAULT_PAGE_SIZE,
9044                                                       phba->sli4_hba.rq_esize,
9045                                                       LPFC_NVMET_RQE_DEF_COUNT,
9046                                                       cpu);
9047                         if (!qdesc) {
9048                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9049                                                 "3156 Failed allocate "
9050                                                 "receive DRQ\n");
9051                                 goto out_error;
9052                         }
9053                         qdesc->hdwq = idx;
9054                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9055                 }
9056         }
9057
9058         /* Clear NVME stats */
9059         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9060                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9061                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9062                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9063                 }
9064         }
9065
9066         /* Clear SCSI stats */
9067         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9068                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9069                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9070                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9071                 }
9072         }
9073
9074         return 0;
9075
9076 out_error:
9077         lpfc_sli4_queue_destroy(phba);
9078         return -ENOMEM;
9079 }
9080
9081 static inline void
9082 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9083 {
9084         if (*qp != NULL) {
9085                 lpfc_sli4_queue_free(*qp);
9086                 *qp = NULL;
9087         }
9088 }
9089
9090 static inline void
9091 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9092 {
9093         int idx;
9094
9095         if (*qs == NULL)
9096                 return;
9097
9098         for (idx = 0; idx < max; idx++)
9099                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9100
9101         kfree(*qs);
9102         *qs = NULL;
9103 }
9104
9105 static inline void
9106 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9107 {
9108         struct lpfc_sli4_hdw_queue *hdwq;
9109         struct lpfc_queue *eq;
9110         uint32_t idx;
9111
9112         hdwq = phba->sli4_hba.hdwq;
9113
9114         /* Loop thru all Hardware Queues */
9115         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9116                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9117                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9118                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9119                 hdwq[idx].io_cq = NULL;
9120                 hdwq[idx].io_wq = NULL;
9121                 if (phba->cfg_xpsgl && !phba->nvmet_support)
9122                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9123                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9124         }
9125         /* Loop thru all IRQ vectors */
9126         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9127                 /* Free the EQ corresponding to the IRQ vector */
9128                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9129                 lpfc_sli4_queue_free(eq);
9130                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9131         }
9132 }
9133
9134 /**
9135  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9136  * @phba: pointer to lpfc hba data structure.
9137  *
9138  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9139  * operation.
9140  *
9141  * Return codes
9142  *      0 - successful
9143  *      -ENOMEM - No available memory
9144  *      -EIO - The mailbox failed to complete successfully.
9145  **/
9146 void
9147 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9148 {
9149         /*
9150          * Set FREE_INIT before beginning to free the queues.
9151          * Wait until the users of queues to acknowledge to
9152          * release queues by clearing FREE_WAIT.
9153          */
9154         spin_lock_irq(&phba->hbalock);
9155         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9156         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9157                 spin_unlock_irq(&phba->hbalock);
9158                 msleep(20);
9159                 spin_lock_irq(&phba->hbalock);
9160         }
9161         spin_unlock_irq(&phba->hbalock);
9162
9163         /* Release HBA eqs */
9164         if (phba->sli4_hba.hdwq)
9165                 lpfc_sli4_release_hdwq(phba);
9166
9167         if (phba->nvmet_support) {
9168                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9169                                          phba->cfg_nvmet_mrq);
9170
9171                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9172                                          phba->cfg_nvmet_mrq);
9173                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9174                                          phba->cfg_nvmet_mrq);
9175         }
9176
9177         /* Release mailbox command work queue */
9178         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9179
9180         /* Release ELS work queue */
9181         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9182
9183         /* Release ELS work queue */
9184         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9185
9186         /* Release unsolicited receive queue */
9187         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9188         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9189
9190         /* Release ELS complete queue */
9191         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9192
9193         /* Release NVME LS complete queue */
9194         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9195
9196         /* Release mailbox command complete queue */
9197         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9198
9199         /* Everything on this list has been freed */
9200         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9201
9202         /* Done with freeing the queues */
9203         spin_lock_irq(&phba->hbalock);
9204         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9205         spin_unlock_irq(&phba->hbalock);
9206 }
9207
9208 int
9209 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9210 {
9211         struct lpfc_rqb *rqbp;
9212         struct lpfc_dmabuf *h_buf;
9213         struct rqb_dmabuf *rqb_buffer;
9214
9215         rqbp = rq->rqbp;
9216         while (!list_empty(&rqbp->rqb_buffer_list)) {
9217                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9218                                  struct lpfc_dmabuf, list);
9219
9220                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9221                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9222                 rqbp->buffer_count--;
9223         }
9224         return 1;
9225 }
9226
9227 static int
9228 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9229         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9230         int qidx, uint32_t qtype)
9231 {
9232         struct lpfc_sli_ring *pring;
9233         int rc;
9234
9235         if (!eq || !cq || !wq) {
9236                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9237                         "6085 Fast-path %s (%d) not allocated\n",
9238                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9239                 return -ENOMEM;
9240         }
9241
9242         /* create the Cq first */
9243         rc = lpfc_cq_create(phba, cq, eq,
9244                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9245         if (rc) {
9246                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9247                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9248                         qidx, (uint32_t)rc);
9249                 return rc;
9250         }
9251
9252         if (qtype != LPFC_MBOX) {
9253                 /* Setup cq_map for fast lookup */
9254                 if (cq_map)
9255                         *cq_map = cq->queue_id;
9256
9257                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9258                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9259                         qidx, cq->queue_id, qidx, eq->queue_id);
9260
9261                 /* create the wq */
9262                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9263                 if (rc) {
9264                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9265                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9266                                 qidx, (uint32_t)rc);
9267                         /* no need to tear down cq - caller will do so */
9268                         return rc;
9269                 }
9270
9271                 /* Bind this CQ/WQ to the NVME ring */
9272                 pring = wq->pring;
9273                 pring->sli.sli4.wqp = (void *)wq;
9274                 cq->pring = pring;
9275
9276                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9277                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9278                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9279         } else {
9280                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9281                 if (rc) {
9282                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9283                                 "0539 Failed setup of slow-path MQ: "
9284                                 "rc = 0x%x\n", rc);
9285                         /* no need to tear down cq - caller will do so */
9286                         return rc;
9287                 }
9288
9289                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9290                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9291                         phba->sli4_hba.mbx_wq->queue_id,
9292                         phba->sli4_hba.mbx_cq->queue_id);
9293         }
9294
9295         return 0;
9296 }
9297
9298 /**
9299  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9300  * @phba: pointer to lpfc hba data structure.
9301  *
9302  * This routine will populate the cq_lookup table by all
9303  * available CQ queue_id's.
9304  **/
9305 static void
9306 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9307 {
9308         struct lpfc_queue *eq, *childq;
9309         int qidx;
9310
9311         memset(phba->sli4_hba.cq_lookup, 0,
9312                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9313         /* Loop thru all IRQ vectors */
9314         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9315                 /* Get the EQ corresponding to the IRQ vector */
9316                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9317                 if (!eq)
9318                         continue;
9319                 /* Loop through all CQs associated with that EQ */
9320                 list_for_each_entry(childq, &eq->child_list, list) {
9321                         if (childq->queue_id > phba->sli4_hba.cq_max)
9322                                 continue;
9323                         if (childq->subtype == LPFC_IO)
9324                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9325                                         childq;
9326                 }
9327         }
9328 }
9329
9330 /**
9331  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9332  * @phba: pointer to lpfc hba data structure.
9333  *
9334  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9335  * operation.
9336  *
9337  * Return codes
9338  *      0 - successful
9339  *      -ENOMEM - No available memory
9340  *      -EIO - The mailbox failed to complete successfully.
9341  **/
9342 int
9343 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9344 {
9345         uint32_t shdr_status, shdr_add_status;
9346         union lpfc_sli4_cfg_shdr *shdr;
9347         struct lpfc_vector_map_info *cpup;
9348         struct lpfc_sli4_hdw_queue *qp;
9349         LPFC_MBOXQ_t *mboxq;
9350         int qidx, cpu;
9351         uint32_t length, usdelay;
9352         int rc = -ENOMEM;
9353
9354         /* Check for dual-ULP support */
9355         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9356         if (!mboxq) {
9357                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9358                                 "3249 Unable to allocate memory for "
9359                                 "QUERY_FW_CFG mailbox command\n");
9360                 return -ENOMEM;
9361         }
9362         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9363                   sizeof(struct lpfc_sli4_cfg_mhdr));
9364         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9365                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9366                          length, LPFC_SLI4_MBX_EMBED);
9367
9368         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9369
9370         shdr = (union lpfc_sli4_cfg_shdr *)
9371                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9372         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9373         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9374         if (shdr_status || shdr_add_status || rc) {
9375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9376                                 "3250 QUERY_FW_CFG mailbox failed with status "
9377                                 "x%x add_status x%x, mbx status x%x\n",
9378                                 shdr_status, shdr_add_status, rc);
9379                 if (rc != MBX_TIMEOUT)
9380                         mempool_free(mboxq, phba->mbox_mem_pool);
9381                 rc = -ENXIO;
9382                 goto out_error;
9383         }
9384
9385         phba->sli4_hba.fw_func_mode =
9386                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9387         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9388         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9389         phba->sli4_hba.physical_port =
9390                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9391         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9392                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9393                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9394                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9395
9396         if (rc != MBX_TIMEOUT)
9397                 mempool_free(mboxq, phba->mbox_mem_pool);
9398
9399         /*
9400          * Set up HBA Event Queues (EQs)
9401          */
9402         qp = phba->sli4_hba.hdwq;
9403
9404         /* Set up HBA event queue */
9405         if (!qp) {
9406                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9407                                 "3147 Fast-path EQs not allocated\n");
9408                 rc = -ENOMEM;
9409                 goto out_error;
9410         }
9411
9412         /* Loop thru all IRQ vectors */
9413         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9414                 /* Create HBA Event Queues (EQs) in order */
9415                 for_each_present_cpu(cpu) {
9416                         cpup = &phba->sli4_hba.cpu_map[cpu];
9417
9418                         /* Look for the CPU thats using that vector with
9419                          * LPFC_CPU_FIRST_IRQ set.
9420                          */
9421                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9422                                 continue;
9423                         if (qidx != cpup->eq)
9424                                 continue;
9425
9426                         /* Create an EQ for that vector */
9427                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9428                                             phba->cfg_fcp_imax);
9429                         if (rc) {
9430                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9431                                                 "0523 Failed setup of fast-path"
9432                                                 " EQ (%d), rc = 0x%x\n",
9433                                                 cpup->eq, (uint32_t)rc);
9434                                 goto out_destroy;
9435                         }
9436
9437                         /* Save the EQ for that vector in the hba_eq_hdl */
9438                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9439                                 qp[cpup->hdwq].hba_eq;
9440
9441                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9442                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9443                                         cpup->eq,
9444                                         qp[cpup->hdwq].hba_eq->queue_id);
9445                 }
9446         }
9447
9448         /* Loop thru all Hardware Queues */
9449         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9450                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9451                 cpup = &phba->sli4_hba.cpu_map[cpu];
9452
9453                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9454                 rc = lpfc_create_wq_cq(phba,
9455                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9456                                        qp[qidx].io_cq,
9457                                        qp[qidx].io_wq,
9458                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
9459                                        qidx,
9460                                        LPFC_IO);
9461                 if (rc) {
9462                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9463                                         "0535 Failed to setup fastpath "
9464                                         "IO WQ/CQ (%d), rc = 0x%x\n",
9465                                         qidx, (uint32_t)rc);
9466                         goto out_destroy;
9467                 }
9468         }
9469
9470         /*
9471          * Set up Slow Path Complete Queues (CQs)
9472          */
9473
9474         /* Set up slow-path MBOX CQ/MQ */
9475
9476         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9477                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9478                                 "0528 %s not allocated\n",
9479                                 phba->sli4_hba.mbx_cq ?
9480                                 "Mailbox WQ" : "Mailbox CQ");
9481                 rc = -ENOMEM;
9482                 goto out_destroy;
9483         }
9484
9485         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9486                                phba->sli4_hba.mbx_cq,
9487                                phba->sli4_hba.mbx_wq,
9488                                NULL, 0, LPFC_MBOX);
9489         if (rc) {
9490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9491                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9492                         (uint32_t)rc);
9493                 goto out_destroy;
9494         }
9495         if (phba->nvmet_support) {
9496                 if (!phba->sli4_hba.nvmet_cqset) {
9497                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9498                                         "3165 Fast-path NVME CQ Set "
9499                                         "array not allocated\n");
9500                         rc = -ENOMEM;
9501                         goto out_destroy;
9502                 }
9503                 if (phba->cfg_nvmet_mrq > 1) {
9504                         rc = lpfc_cq_create_set(phba,
9505                                         phba->sli4_hba.nvmet_cqset,
9506                                         qp,
9507                                         LPFC_WCQ, LPFC_NVMET);
9508                         if (rc) {
9509                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9510                                                 "3164 Failed setup of NVME CQ "
9511                                                 "Set, rc = 0x%x\n",
9512                                                 (uint32_t)rc);
9513                                 goto out_destroy;
9514                         }
9515                 } else {
9516                         /* Set up NVMET Receive Complete Queue */
9517                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9518                                             qp[0].hba_eq,
9519                                             LPFC_WCQ, LPFC_NVMET);
9520                         if (rc) {
9521                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9522                                                 "6089 Failed setup NVMET CQ: "
9523                                                 "rc = 0x%x\n", (uint32_t)rc);
9524                                 goto out_destroy;
9525                         }
9526                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9527
9528                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529                                         "6090 NVMET CQ setup: cq-id=%d, "
9530                                         "parent eq-id=%d\n",
9531                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9532                                         qp[0].hba_eq->queue_id);
9533                 }
9534         }
9535
9536         /* Set up slow-path ELS WQ/CQ */
9537         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9538                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9539                                 "0530 ELS %s not allocated\n",
9540                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9541                 rc = -ENOMEM;
9542                 goto out_destroy;
9543         }
9544         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9545                                phba->sli4_hba.els_cq,
9546                                phba->sli4_hba.els_wq,
9547                                NULL, 0, LPFC_ELS);
9548         if (rc) {
9549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9550                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9551                                 (uint32_t)rc);
9552                 goto out_destroy;
9553         }
9554         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9555                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9556                         phba->sli4_hba.els_wq->queue_id,
9557                         phba->sli4_hba.els_cq->queue_id);
9558
9559         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9560                 /* Set up NVME LS Complete Queue */
9561                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9562                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9563                                         "6091 LS %s not allocated\n",
9564                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9565                         rc = -ENOMEM;
9566                         goto out_destroy;
9567                 }
9568                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9569                                        phba->sli4_hba.nvmels_cq,
9570                                        phba->sli4_hba.nvmels_wq,
9571                                        NULL, 0, LPFC_NVME_LS);
9572                 if (rc) {
9573                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9574                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9575                                         "rc = 0x%x\n", (uint32_t)rc);
9576                         goto out_destroy;
9577                 }
9578
9579                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9580                                 "6096 ELS WQ setup: wq-id=%d, "
9581                                 "parent cq-id=%d\n",
9582                                 phba->sli4_hba.nvmels_wq->queue_id,
9583                                 phba->sli4_hba.nvmels_cq->queue_id);
9584         }
9585
9586         /*
9587          * Create NVMET Receive Queue (RQ)
9588          */
9589         if (phba->nvmet_support) {
9590                 if ((!phba->sli4_hba.nvmet_cqset) ||
9591                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9592                     (!phba->sli4_hba.nvmet_mrq_data)) {
9593                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9594                                         "6130 MRQ CQ Queues not "
9595                                         "allocated\n");
9596                         rc = -ENOMEM;
9597                         goto out_destroy;
9598                 }
9599                 if (phba->cfg_nvmet_mrq > 1) {
9600                         rc = lpfc_mrq_create(phba,
9601                                              phba->sli4_hba.nvmet_mrq_hdr,
9602                                              phba->sli4_hba.nvmet_mrq_data,
9603                                              phba->sli4_hba.nvmet_cqset,
9604                                              LPFC_NVMET);
9605                         if (rc) {
9606                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9607                                                 "6098 Failed setup of NVMET "
9608                                                 "MRQ: rc = 0x%x\n",
9609                                                 (uint32_t)rc);
9610                                 goto out_destroy;
9611                         }
9612
9613                 } else {
9614                         rc = lpfc_rq_create(phba,
9615                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9616                                             phba->sli4_hba.nvmet_mrq_data[0],
9617                                             phba->sli4_hba.nvmet_cqset[0],
9618                                             LPFC_NVMET);
9619                         if (rc) {
9620                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9621                                                 "6057 Failed setup of NVMET "
9622                                                 "Receive Queue: rc = 0x%x\n",
9623                                                 (uint32_t)rc);
9624                                 goto out_destroy;
9625                         }
9626
9627                         lpfc_printf_log(
9628                                 phba, KERN_INFO, LOG_INIT,
9629                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9630                                 "dat-rq-id=%d parent cq-id=%d\n",
9631                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9632                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9633                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9634
9635                 }
9636         }
9637
9638         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9639                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9640                                 "0540 Receive Queue not allocated\n");
9641                 rc = -ENOMEM;
9642                 goto out_destroy;
9643         }
9644
9645         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9646                             phba->sli4_hba.els_cq, LPFC_USOL);
9647         if (rc) {
9648                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9649                                 "0541 Failed setup of Receive Queue: "
9650                                 "rc = 0x%x\n", (uint32_t)rc);
9651                 goto out_destroy;
9652         }
9653
9654         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9655                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9656                         "parent cq-id=%d\n",
9657                         phba->sli4_hba.hdr_rq->queue_id,
9658                         phba->sli4_hba.dat_rq->queue_id,
9659                         phba->sli4_hba.els_cq->queue_id);
9660
9661         if (phba->cfg_fcp_imax)
9662                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9663         else
9664                 usdelay = 0;
9665
9666         for (qidx = 0; qidx < phba->cfg_irq_chann;
9667              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9668                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9669                                          usdelay);
9670
9671         if (phba->sli4_hba.cq_max) {
9672                 kfree(phba->sli4_hba.cq_lookup);
9673                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9674                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9675                 if (!phba->sli4_hba.cq_lookup) {
9676                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9677                                         "0549 Failed setup of CQ Lookup table: "
9678                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9679                         rc = -ENOMEM;
9680                         goto out_destroy;
9681                 }
9682                 lpfc_setup_cq_lookup(phba);
9683         }
9684         return 0;
9685
9686 out_destroy:
9687         lpfc_sli4_queue_unset(phba);
9688 out_error:
9689         return rc;
9690 }
9691
9692 /**
9693  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9694  * @phba: pointer to lpfc hba data structure.
9695  *
9696  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9697  * operation.
9698  *
9699  * Return codes
9700  *      0 - successful
9701  *      -ENOMEM - No available memory
9702  *      -EIO - The mailbox failed to complete successfully.
9703  **/
9704 void
9705 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9706 {
9707         struct lpfc_sli4_hdw_queue *qp;
9708         struct lpfc_queue *eq;
9709         int qidx;
9710
9711         /* Unset mailbox command work queue */
9712         if (phba->sli4_hba.mbx_wq)
9713                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9714
9715         /* Unset NVME LS work queue */
9716         if (phba->sli4_hba.nvmels_wq)
9717                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9718
9719         /* Unset ELS work queue */
9720         if (phba->sli4_hba.els_wq)
9721                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9722
9723         /* Unset unsolicited receive queue */
9724         if (phba->sli4_hba.hdr_rq)
9725                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9726                                 phba->sli4_hba.dat_rq);
9727
9728         /* Unset mailbox command complete queue */
9729         if (phba->sli4_hba.mbx_cq)
9730                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9731
9732         /* Unset ELS complete queue */
9733         if (phba->sli4_hba.els_cq)
9734                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9735
9736         /* Unset NVME LS complete queue */
9737         if (phba->sli4_hba.nvmels_cq)
9738                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9739
9740         if (phba->nvmet_support) {
9741                 /* Unset NVMET MRQ queue */
9742                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9743                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9744                                 lpfc_rq_destroy(
9745                                         phba,
9746                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9747                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9748                 }
9749
9750                 /* Unset NVMET CQ Set complete queue */
9751                 if (phba->sli4_hba.nvmet_cqset) {
9752                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9753                                 lpfc_cq_destroy(
9754                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9755                 }
9756         }
9757
9758         /* Unset fast-path SLI4 queues */
9759         if (phba->sli4_hba.hdwq) {
9760                 /* Loop thru all Hardware Queues */
9761                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9762                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
9763                         qp = &phba->sli4_hba.hdwq[qidx];
9764                         lpfc_wq_destroy(phba, qp->io_wq);
9765                         lpfc_cq_destroy(phba, qp->io_cq);
9766                 }
9767                 /* Loop thru all IRQ vectors */
9768                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9769                         /* Destroy the EQ corresponding to the IRQ vector */
9770                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9771                         lpfc_eq_destroy(phba, eq);
9772                 }
9773         }
9774
9775         kfree(phba->sli4_hba.cq_lookup);
9776         phba->sli4_hba.cq_lookup = NULL;
9777         phba->sli4_hba.cq_max = 0;
9778 }
9779
9780 /**
9781  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9782  * @phba: pointer to lpfc hba data structure.
9783  *
9784  * This routine is invoked to allocate and set up a pool of completion queue
9785  * events. The body of the completion queue event is a completion queue entry
9786  * CQE. For now, this pool is used for the interrupt service routine to queue
9787  * the following HBA completion queue events for the worker thread to process:
9788  *   - Mailbox asynchronous events
9789  *   - Receive queue completion unsolicited events
9790  * Later, this can be used for all the slow-path events.
9791  *
9792  * Return codes
9793  *      0 - successful
9794  *      -ENOMEM - No available memory
9795  **/
9796 static int
9797 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9798 {
9799         struct lpfc_cq_event *cq_event;
9800         int i;
9801
9802         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9803                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9804                 if (!cq_event)
9805                         goto out_pool_create_fail;
9806                 list_add_tail(&cq_event->list,
9807                               &phba->sli4_hba.sp_cqe_event_pool);
9808         }
9809         return 0;
9810
9811 out_pool_create_fail:
9812         lpfc_sli4_cq_event_pool_destroy(phba);
9813         return -ENOMEM;
9814 }
9815
9816 /**
9817  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9818  * @phba: pointer to lpfc hba data structure.
9819  *
9820  * This routine is invoked to free the pool of completion queue events at
9821  * driver unload time. Note that, it is the responsibility of the driver
9822  * cleanup routine to free all the outstanding completion-queue events
9823  * allocated from this pool back into the pool before invoking this routine
9824  * to destroy the pool.
9825  **/
9826 static void
9827 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9828 {
9829         struct lpfc_cq_event *cq_event, *next_cq_event;
9830
9831         list_for_each_entry_safe(cq_event, next_cq_event,
9832                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9833                 list_del(&cq_event->list);
9834                 kfree(cq_event);
9835         }
9836 }
9837
9838 /**
9839  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9840  * @phba: pointer to lpfc hba data structure.
9841  *
9842  * This routine is the lock free version of the API invoked to allocate a
9843  * completion-queue event from the free pool.
9844  *
9845  * Return: Pointer to the newly allocated completion-queue event if successful
9846  *         NULL otherwise.
9847  **/
9848 struct lpfc_cq_event *
9849 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9850 {
9851         struct lpfc_cq_event *cq_event = NULL;
9852
9853         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9854                          struct lpfc_cq_event, list);
9855         return cq_event;
9856 }
9857
9858 /**
9859  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9860  * @phba: pointer to lpfc hba data structure.
9861  *
9862  * This routine is the lock version of the API invoked to allocate a
9863  * completion-queue event from the free pool.
9864  *
9865  * Return: Pointer to the newly allocated completion-queue event if successful
9866  *         NULL otherwise.
9867  **/
9868 struct lpfc_cq_event *
9869 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9870 {
9871         struct lpfc_cq_event *cq_event;
9872         unsigned long iflags;
9873
9874         spin_lock_irqsave(&phba->hbalock, iflags);
9875         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9876         spin_unlock_irqrestore(&phba->hbalock, iflags);
9877         return cq_event;
9878 }
9879
9880 /**
9881  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9882  * @phba: pointer to lpfc hba data structure.
9883  * @cq_event: pointer to the completion queue event to be freed.
9884  *
9885  * This routine is the lock free version of the API invoked to release a
9886  * completion-queue event back into the free pool.
9887  **/
9888 void
9889 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9890                              struct lpfc_cq_event *cq_event)
9891 {
9892         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9893 }
9894
9895 /**
9896  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9897  * @phba: pointer to lpfc hba data structure.
9898  * @cq_event: pointer to the completion queue event to be freed.
9899  *
9900  * This routine is the lock version of the API invoked to release a
9901  * completion-queue event back into the free pool.
9902  **/
9903 void
9904 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9905                            struct lpfc_cq_event *cq_event)
9906 {
9907         unsigned long iflags;
9908         spin_lock_irqsave(&phba->hbalock, iflags);
9909         __lpfc_sli4_cq_event_release(phba, cq_event);
9910         spin_unlock_irqrestore(&phba->hbalock, iflags);
9911 }
9912
9913 /**
9914  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9915  * @phba: pointer to lpfc hba data structure.
9916  *
9917  * This routine is to free all the pending completion-queue events to the
9918  * back into the free pool for device reset.
9919  **/
9920 static void
9921 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9922 {
9923         LIST_HEAD(cqelist);
9924         struct lpfc_cq_event *cqe;
9925         unsigned long iflags;
9926
9927         /* Retrieve all the pending WCQEs from pending WCQE lists */
9928         spin_lock_irqsave(&phba->hbalock, iflags);
9929         /* Pending FCP XRI abort events */
9930         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9931                          &cqelist);
9932         /* Pending ELS XRI abort events */
9933         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9934                          &cqelist);
9935         /* Pending asynnc events */
9936         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9937                          &cqelist);
9938         spin_unlock_irqrestore(&phba->hbalock, iflags);
9939
9940         while (!list_empty(&cqelist)) {
9941                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9942                 lpfc_sli4_cq_event_release(phba, cqe);
9943         }
9944 }
9945
9946 /**
9947  * lpfc_pci_function_reset - Reset pci function.
9948  * @phba: pointer to lpfc hba data structure.
9949  *
9950  * This routine is invoked to request a PCI function reset. It will destroys
9951  * all resources assigned to the PCI function which originates this request.
9952  *
9953  * Return codes
9954  *      0 - successful
9955  *      -ENOMEM - No available memory
9956  *      -EIO - The mailbox failed to complete successfully.
9957  **/
9958 int
9959 lpfc_pci_function_reset(struct lpfc_hba *phba)
9960 {
9961         LPFC_MBOXQ_t *mboxq;
9962         uint32_t rc = 0, if_type;
9963         uint32_t shdr_status, shdr_add_status;
9964         uint32_t rdy_chk;
9965         uint32_t port_reset = 0;
9966         union lpfc_sli4_cfg_shdr *shdr;
9967         struct lpfc_register reg_data;
9968         uint16_t devid;
9969
9970         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9971         switch (if_type) {
9972         case LPFC_SLI_INTF_IF_TYPE_0:
9973                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9974                                                        GFP_KERNEL);
9975                 if (!mboxq) {
9976                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9977                                         "0494 Unable to allocate memory for "
9978                                         "issuing SLI_FUNCTION_RESET mailbox "
9979                                         "command\n");
9980                         return -ENOMEM;
9981                 }
9982
9983                 /* Setup PCI function reset mailbox-ioctl command */
9984                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9985                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9986                                  LPFC_SLI4_MBX_EMBED);
9987                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9988                 shdr = (union lpfc_sli4_cfg_shdr *)
9989                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9990                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9991                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9992                                          &shdr->response);
9993                 if (rc != MBX_TIMEOUT)
9994                         mempool_free(mboxq, phba->mbox_mem_pool);
9995                 if (shdr_status || shdr_add_status || rc) {
9996                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9997                                         "0495 SLI_FUNCTION_RESET mailbox "
9998                                         "failed with status x%x add_status x%x,"
9999                                         " mbx status x%x\n",
10000                                         shdr_status, shdr_add_status, rc);
10001                         rc = -ENXIO;
10002                 }
10003                 break;
10004         case LPFC_SLI_INTF_IF_TYPE_2:
10005         case LPFC_SLI_INTF_IF_TYPE_6:
10006 wait:
10007                 /*
10008                  * Poll the Port Status Register and wait for RDY for
10009                  * up to 30 seconds. If the port doesn't respond, treat
10010                  * it as an error.
10011                  */
10012                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10013                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10014                                 STATUSregaddr, &reg_data.word0)) {
10015                                 rc = -ENODEV;
10016                                 goto out;
10017                         }
10018                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10019                                 break;
10020                         msleep(20);
10021                 }
10022
10023                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10024                         phba->work_status[0] = readl(
10025                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10026                         phba->work_status[1] = readl(
10027                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10028                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10029                                         "2890 Port not ready, port status reg "
10030                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10031                                         reg_data.word0,
10032                                         phba->work_status[0],
10033                                         phba->work_status[1]);
10034                         rc = -ENODEV;
10035                         goto out;
10036                 }
10037
10038                 if (!port_reset) {
10039                         /*
10040                          * Reset the port now
10041                          */
10042                         reg_data.word0 = 0;
10043                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10044                                LPFC_SLIPORT_LITTLE_ENDIAN);
10045                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10046                                LPFC_SLIPORT_INIT_PORT);
10047                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10048                                CTRLregaddr);
10049                         /* flush */
10050                         pci_read_config_word(phba->pcidev,
10051                                              PCI_DEVICE_ID, &devid);
10052
10053                         port_reset = 1;
10054                         msleep(20);
10055                         goto wait;
10056                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10057                         rc = -ENODEV;
10058                         goto out;
10059                 }
10060                 break;
10061
10062         case LPFC_SLI_INTF_IF_TYPE_1:
10063         default:
10064                 break;
10065         }
10066
10067 out:
10068         /* Catch the not-ready port failure after a port reset. */
10069         if (rc) {
10070                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10071                                 "3317 HBA not functional: IP Reset Failed "
10072                                 "try: echo fw_reset > board_mode\n");
10073                 rc = -ENODEV;
10074         }
10075
10076         return rc;
10077 }
10078
10079 /**
10080  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10081  * @phba: pointer to lpfc hba data structure.
10082  *
10083  * This routine is invoked to set up the PCI device memory space for device
10084  * with SLI-4 interface spec.
10085  *
10086  * Return codes
10087  *      0 - successful
10088  *      other values - error
10089  **/
10090 static int
10091 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10092 {
10093         struct pci_dev *pdev = phba->pcidev;
10094         unsigned long bar0map_len, bar1map_len, bar2map_len;
10095         int error;
10096         uint32_t if_type;
10097
10098         if (!pdev)
10099                 return -ENODEV;
10100
10101         /* Set the device DMA mask size */
10102         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10103         if (error)
10104                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10105         if (error)
10106                 return error;
10107
10108         /*
10109          * The BARs and register set definitions and offset locations are
10110          * dependent on the if_type.
10111          */
10112         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10113                                   &phba->sli4_hba.sli_intf.word0)) {
10114                 return -ENODEV;
10115         }
10116
10117         /* There is no SLI3 failback for SLI4 devices. */
10118         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10119             LPFC_SLI_INTF_VALID) {
10120                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10121                                 "2894 SLI_INTF reg contents invalid "
10122                                 "sli_intf reg 0x%x\n",
10123                                 phba->sli4_hba.sli_intf.word0);
10124                 return -ENODEV;
10125         }
10126
10127         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10128         /*
10129          * Get the bus address of SLI4 device Bar regions and the
10130          * number of bytes required by each mapping. The mapping of the
10131          * particular PCI BARs regions is dependent on the type of
10132          * SLI4 device.
10133          */
10134         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10135                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10136                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10137
10138                 /*
10139                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10140                  * addr
10141                  */
10142                 phba->sli4_hba.conf_regs_memmap_p =
10143                         ioremap(phba->pci_bar0_map, bar0map_len);
10144                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10145                         dev_printk(KERN_ERR, &pdev->dev,
10146                                    "ioremap failed for SLI4 PCI config "
10147                                    "registers.\n");
10148                         return -ENODEV;
10149                 }
10150                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10151                 /* Set up BAR0 PCI config space register memory map */
10152                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10153         } else {
10154                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10155                 bar0map_len = pci_resource_len(pdev, 1);
10156                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10157                         dev_printk(KERN_ERR, &pdev->dev,
10158                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10159                         return -ENODEV;
10160                 }
10161                 phba->sli4_hba.conf_regs_memmap_p =
10162                                 ioremap(phba->pci_bar0_map, bar0map_len);
10163                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10164                         dev_printk(KERN_ERR, &pdev->dev,
10165                                 "ioremap failed for SLI4 PCI config "
10166                                 "registers.\n");
10167                         return -ENODEV;
10168                 }
10169                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10170         }
10171
10172         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10173                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10174                         /*
10175                          * Map SLI4 if type 0 HBA Control Register base to a
10176                          * kernel virtual address and setup the registers.
10177                          */
10178                         phba->pci_bar1_map = pci_resource_start(pdev,
10179                                                                 PCI_64BIT_BAR2);
10180                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10181                         phba->sli4_hba.ctrl_regs_memmap_p =
10182                                         ioremap(phba->pci_bar1_map,
10183                                                 bar1map_len);
10184                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10185                                 dev_err(&pdev->dev,
10186                                            "ioremap failed for SLI4 HBA "
10187                                             "control registers.\n");
10188                                 error = -ENOMEM;
10189                                 goto out_iounmap_conf;
10190                         }
10191                         phba->pci_bar2_memmap_p =
10192                                          phba->sli4_hba.ctrl_regs_memmap_p;
10193                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10194                 } else {
10195                         error = -ENOMEM;
10196                         goto out_iounmap_conf;
10197                 }
10198         }
10199
10200         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10201             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10202                 /*
10203                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10204                  * virtual address and setup the registers.
10205                  */
10206                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10207                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10208                 phba->sli4_hba.drbl_regs_memmap_p =
10209                                 ioremap(phba->pci_bar1_map, bar1map_len);
10210                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10211                         dev_err(&pdev->dev,
10212                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10213                         error = -ENOMEM;
10214                         goto out_iounmap_conf;
10215                 }
10216                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10217                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10218         }
10219
10220         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10221                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10222                         /*
10223                          * Map SLI4 if type 0 HBA Doorbell Register base to
10224                          * a kernel virtual address and setup the registers.
10225                          */
10226                         phba->pci_bar2_map = pci_resource_start(pdev,
10227                                                                 PCI_64BIT_BAR4);
10228                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10229                         phba->sli4_hba.drbl_regs_memmap_p =
10230                                         ioremap(phba->pci_bar2_map,
10231                                                 bar2map_len);
10232                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10233                                 dev_err(&pdev->dev,
10234                                            "ioremap failed for SLI4 HBA"
10235                                            " doorbell registers.\n");
10236                                 error = -ENOMEM;
10237                                 goto out_iounmap_ctrl;
10238                         }
10239                         phba->pci_bar4_memmap_p =
10240                                         phba->sli4_hba.drbl_regs_memmap_p;
10241                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10242                         if (error)
10243                                 goto out_iounmap_all;
10244                 } else {
10245                         error = -ENOMEM;
10246                         goto out_iounmap_all;
10247                 }
10248         }
10249
10250         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10251             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10252                 /*
10253                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10254                  * virtual address and setup the registers.
10255                  */
10256                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10257                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10258                 phba->sli4_hba.dpp_regs_memmap_p =
10259                                 ioremap(phba->pci_bar2_map, bar2map_len);
10260                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10261                         dev_err(&pdev->dev,
10262                            "ioremap failed for SLI4 HBA dpp registers.\n");
10263                         error = -ENOMEM;
10264                         goto out_iounmap_ctrl;
10265                 }
10266                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10267         }
10268
10269         /* Set up the EQ/CQ register handeling functions now */
10270         switch (if_type) {
10271         case LPFC_SLI_INTF_IF_TYPE_0:
10272         case LPFC_SLI_INTF_IF_TYPE_2:
10273                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10274                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10275                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10276                 break;
10277         case LPFC_SLI_INTF_IF_TYPE_6:
10278                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10279                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10280                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10281                 break;
10282         default:
10283                 break;
10284         }
10285
10286         return 0;
10287
10288 out_iounmap_all:
10289         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10290 out_iounmap_ctrl:
10291         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10292 out_iounmap_conf:
10293         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10294
10295         return error;
10296 }
10297
10298 /**
10299  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10300  * @phba: pointer to lpfc hba data structure.
10301  *
10302  * This routine is invoked to unset the PCI device memory space for device
10303  * with SLI-4 interface spec.
10304  **/
10305 static void
10306 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10307 {
10308         uint32_t if_type;
10309         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10310
10311         switch (if_type) {
10312         case LPFC_SLI_INTF_IF_TYPE_0:
10313                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10314                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10315                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10316                 break;
10317         case LPFC_SLI_INTF_IF_TYPE_2:
10318                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10319                 break;
10320         case LPFC_SLI_INTF_IF_TYPE_6:
10321                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10322                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10323                 break;
10324         case LPFC_SLI_INTF_IF_TYPE_1:
10325         default:
10326                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10327                            "FATAL - unsupported SLI4 interface type - %d\n",
10328                            if_type);
10329                 break;
10330         }
10331 }
10332
10333 /**
10334  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10335  * @phba: pointer to lpfc hba data structure.
10336  *
10337  * This routine is invoked to enable the MSI-X interrupt vectors to device
10338  * with SLI-3 interface specs.
10339  *
10340  * Return codes
10341  *   0 - successful
10342  *   other values - error
10343  **/
10344 static int
10345 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10346 {
10347         int rc;
10348         LPFC_MBOXQ_t *pmb;
10349
10350         /* Set up MSI-X multi-message vectors */
10351         rc = pci_alloc_irq_vectors(phba->pcidev,
10352                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10353         if (rc < 0) {
10354                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10355                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10356                 goto vec_fail_out;
10357         }
10358
10359         /*
10360          * Assign MSI-X vectors to interrupt handlers
10361          */
10362
10363         /* vector-0 is associated to slow-path handler */
10364         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10365                          &lpfc_sli_sp_intr_handler, 0,
10366                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10367         if (rc) {
10368                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10369                                 "0421 MSI-X slow-path request_irq failed "
10370                                 "(%d)\n", rc);
10371                 goto msi_fail_out;
10372         }
10373
10374         /* vector-1 is associated to fast-path handler */
10375         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10376                          &lpfc_sli_fp_intr_handler, 0,
10377                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10378
10379         if (rc) {
10380                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10381                                 "0429 MSI-X fast-path request_irq failed "
10382                                 "(%d)\n", rc);
10383                 goto irq_fail_out;
10384         }
10385
10386         /*
10387          * Configure HBA MSI-X attention conditions to messages
10388          */
10389         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10390
10391         if (!pmb) {
10392                 rc = -ENOMEM;
10393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10394                                 "0474 Unable to allocate memory for issuing "
10395                                 "MBOX_CONFIG_MSI command\n");
10396                 goto mem_fail_out;
10397         }
10398         rc = lpfc_config_msi(phba, pmb);
10399         if (rc)
10400                 goto mbx_fail_out;
10401         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10402         if (rc != MBX_SUCCESS) {
10403                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10404                                 "0351 Config MSI mailbox command failed, "
10405                                 "mbxCmd x%x, mbxStatus x%x\n",
10406                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10407                 goto mbx_fail_out;
10408         }
10409
10410         /* Free memory allocated for mailbox command */
10411         mempool_free(pmb, phba->mbox_mem_pool);
10412         return rc;
10413
10414 mbx_fail_out:
10415         /* Free memory allocated for mailbox command */
10416         mempool_free(pmb, phba->mbox_mem_pool);
10417
10418 mem_fail_out:
10419         /* free the irq already requested */
10420         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10421
10422 irq_fail_out:
10423         /* free the irq already requested */
10424         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10425
10426 msi_fail_out:
10427         /* Unconfigure MSI-X capability structure */
10428         pci_free_irq_vectors(phba->pcidev);
10429
10430 vec_fail_out:
10431         return rc;
10432 }
10433
10434 /**
10435  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10436  * @phba: pointer to lpfc hba data structure.
10437  *
10438  * This routine is invoked to enable the MSI interrupt mode to device with
10439  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10440  * enable the MSI vector. The device driver is responsible for calling the
10441  * request_irq() to register MSI vector with a interrupt the handler, which
10442  * is done in this function.
10443  *
10444  * Return codes
10445  *      0 - successful
10446  *      other values - error
10447  */
10448 static int
10449 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10450 {
10451         int rc;
10452
10453         rc = pci_enable_msi(phba->pcidev);
10454         if (!rc)
10455                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10456                                 "0462 PCI enable MSI mode success.\n");
10457         else {
10458                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10459                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10460                 return rc;
10461         }
10462
10463         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10464                          0, LPFC_DRIVER_NAME, phba);
10465         if (rc) {
10466                 pci_disable_msi(phba->pcidev);
10467                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10468                                 "0478 MSI request_irq failed (%d)\n", rc);
10469         }
10470         return rc;
10471 }
10472
10473 /**
10474  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10475  * @phba: pointer to lpfc hba data structure.
10476  *
10477  * This routine is invoked to enable device interrupt and associate driver's
10478  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10479  * spec. Depends on the interrupt mode configured to the driver, the driver
10480  * will try to fallback from the configured interrupt mode to an interrupt
10481  * mode which is supported by the platform, kernel, and device in the order
10482  * of:
10483  * MSI-X -> MSI -> IRQ.
10484  *
10485  * Return codes
10486  *   0 - successful
10487  *   other values - error
10488  **/
10489 static uint32_t
10490 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10491 {
10492         uint32_t intr_mode = LPFC_INTR_ERROR;
10493         int retval;
10494
10495         if (cfg_mode == 2) {
10496                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10497                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10498                 if (!retval) {
10499                         /* Now, try to enable MSI-X interrupt mode */
10500                         retval = lpfc_sli_enable_msix(phba);
10501                         if (!retval) {
10502                                 /* Indicate initialization to MSI-X mode */
10503                                 phba->intr_type = MSIX;
10504                                 intr_mode = 2;
10505                         }
10506                 }
10507         }
10508
10509         /* Fallback to MSI if MSI-X initialization failed */
10510         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10511                 retval = lpfc_sli_enable_msi(phba);
10512                 if (!retval) {
10513                         /* Indicate initialization to MSI mode */
10514                         phba->intr_type = MSI;
10515                         intr_mode = 1;
10516                 }
10517         }
10518
10519         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10520         if (phba->intr_type == NONE) {
10521                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10522                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10523                 if (!retval) {
10524                         /* Indicate initialization to INTx mode */
10525                         phba->intr_type = INTx;
10526                         intr_mode = 0;
10527                 }
10528         }
10529         return intr_mode;
10530 }
10531
10532 /**
10533  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10534  * @phba: pointer to lpfc hba data structure.
10535  *
10536  * This routine is invoked to disable device interrupt and disassociate the
10537  * driver's interrupt handler(s) from interrupt vector(s) to device with
10538  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10539  * release the interrupt vector(s) for the message signaled interrupt.
10540  **/
10541 static void
10542 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10543 {
10544         int nr_irqs, i;
10545
10546         if (phba->intr_type == MSIX)
10547                 nr_irqs = LPFC_MSIX_VECTORS;
10548         else
10549                 nr_irqs = 1;
10550
10551         for (i = 0; i < nr_irqs; i++)
10552                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10553         pci_free_irq_vectors(phba->pcidev);
10554
10555         /* Reset interrupt management states */
10556         phba->intr_type = NONE;
10557         phba->sli.slistat.sli_intr = 0;
10558 }
10559
10560 /**
10561  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10562  * @phba: pointer to lpfc hba data structure.
10563  * @id: EQ vector index or Hardware Queue index
10564  * @match: LPFC_FIND_BY_EQ = match by EQ
10565  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10566  * Return the CPU that matches the selection criteria
10567  */
10568 static uint16_t
10569 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10570 {
10571         struct lpfc_vector_map_info *cpup;
10572         int cpu;
10573
10574         /* Loop through all CPUs */
10575         for_each_present_cpu(cpu) {
10576                 cpup = &phba->sli4_hba.cpu_map[cpu];
10577
10578                 /* If we are matching by EQ, there may be multiple CPUs using
10579                  * using the same vector, so select the one with
10580                  * LPFC_CPU_FIRST_IRQ set.
10581                  */
10582                 if ((match == LPFC_FIND_BY_EQ) &&
10583                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10584                     (cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10585                     (cpup->eq == id))
10586                         return cpu;
10587
10588                 /* If matching by HDWQ, select the first CPU that matches */
10589                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10590                         return cpu;
10591         }
10592         return 0;
10593 }
10594
10595 #ifdef CONFIG_X86
10596 /**
10597  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10598  * @phba: pointer to lpfc hba data structure.
10599  * @cpu: CPU map index
10600  * @phys_id: CPU package physical id
10601  * @core_id: CPU core id
10602  */
10603 static int
10604 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10605                 uint16_t phys_id, uint16_t core_id)
10606 {
10607         struct lpfc_vector_map_info *cpup;
10608         int idx;
10609
10610         for_each_present_cpu(idx) {
10611                 cpup = &phba->sli4_hba.cpu_map[idx];
10612                 /* Does the cpup match the one we are looking for */
10613                 if ((cpup->phys_id == phys_id) &&
10614                     (cpup->core_id == core_id) &&
10615                     (cpu != idx))
10616                         return 1;
10617         }
10618         return 0;
10619 }
10620 #endif
10621
10622 /**
10623  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10624  * @phba: pointer to lpfc hba data structure.
10625  * @vectors: number of msix vectors allocated.
10626  *
10627  * The routine will figure out the CPU affinity assignment for every
10628  * MSI-X vector allocated for the HBA.
10629  * In addition, the CPU to IO channel mapping will be calculated
10630  * and the phba->sli4_hba.cpu_map array will reflect this.
10631  */
10632 static void
10633 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10634 {
10635         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10636         int max_phys_id, min_phys_id;
10637         int max_core_id, min_core_id;
10638         struct lpfc_vector_map_info *cpup;
10639         struct lpfc_vector_map_info *new_cpup;
10640         const struct cpumask *maskp;
10641 #ifdef CONFIG_X86
10642         struct cpuinfo_x86 *cpuinfo;
10643 #endif
10644
10645         /* Init cpu_map array */
10646         for_each_possible_cpu(cpu) {
10647                 cpup = &phba->sli4_hba.cpu_map[cpu];
10648                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10649                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10650                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10651                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10652                 cpup->irq = LPFC_VECTOR_MAP_EMPTY;
10653                 cpup->flag = 0;
10654         }
10655
10656         max_phys_id = 0;
10657         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10658         max_core_id = 0;
10659         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10660
10661         /* Update CPU map with physical id and core id of each CPU */
10662         for_each_present_cpu(cpu) {
10663                 cpup = &phba->sli4_hba.cpu_map[cpu];
10664 #ifdef CONFIG_X86
10665                 cpuinfo = &cpu_data(cpu);
10666                 cpup->phys_id = cpuinfo->phys_proc_id;
10667                 cpup->core_id = cpuinfo->cpu_core_id;
10668                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10669                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10670 #else
10671                 /* No distinction between CPUs for other platforms */
10672                 cpup->phys_id = 0;
10673                 cpup->core_id = cpu;
10674 #endif
10675
10676                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10677                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
10678                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10679
10680                 if (cpup->phys_id > max_phys_id)
10681                         max_phys_id = cpup->phys_id;
10682                 if (cpup->phys_id < min_phys_id)
10683                         min_phys_id = cpup->phys_id;
10684
10685                 if (cpup->core_id > max_core_id)
10686                         max_core_id = cpup->core_id;
10687                 if (cpup->core_id < min_core_id)
10688                         min_core_id = cpup->core_id;
10689         }
10690
10691         for_each_possible_cpu(i) {
10692                 struct lpfc_eq_intr_info *eqi =
10693                         per_cpu_ptr(phba->sli4_hba.eq_info, i);
10694
10695                 INIT_LIST_HEAD(&eqi->list);
10696                 eqi->icnt = 0;
10697         }
10698
10699         /* This loop sets up all CPUs that are affinitized with a
10700          * irq vector assigned to the driver. All affinitized CPUs
10701          * will get a link to that vectors IRQ and EQ.
10702          *
10703          * NULL affinity mask handling:
10704          * If irq count is greater than one, log an error message.
10705          * If the null mask is received for the first irq, find the
10706          * first present cpu, and assign the eq index to ensure at
10707          * least one EQ is assigned.
10708          */
10709         for (idx = 0; idx <  phba->cfg_irq_chann; idx++) {
10710                 /* Get a CPU mask for all CPUs affinitized to this vector */
10711                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
10712                 if (!maskp) {
10713                         if (phba->cfg_irq_chann > 1)
10714                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10715                                                 "3329 No affinity mask found "
10716                                                 "for vector %d (%d)\n",
10717                                                 idx, phba->cfg_irq_chann);
10718                         if (!idx) {
10719                                 cpu = cpumask_first(cpu_present_mask);
10720                                 cpup = &phba->sli4_hba.cpu_map[cpu];
10721                                 cpup->eq = idx;
10722                                 cpup->irq = pci_irq_vector(phba->pcidev, idx);
10723                                 cpup->flag |= LPFC_CPU_FIRST_IRQ;
10724                         }
10725                         break;
10726                 }
10727
10728                 i = 0;
10729                 /* Loop through all CPUs associated with vector idx */
10730                 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
10731                         /* Set the EQ index and IRQ for that vector */
10732                         cpup = &phba->sli4_hba.cpu_map[cpu];
10733                         cpup->eq = idx;
10734                         cpup->irq = pci_irq_vector(phba->pcidev, idx);
10735
10736                         /* If this is the first CPU thats assigned to this
10737                          * vector, set LPFC_CPU_FIRST_IRQ.
10738                          */
10739                         if (!i)
10740                                 cpup->flag |= LPFC_CPU_FIRST_IRQ;
10741                         i++;
10742
10743                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10744                                         "3336 Set Affinity: CPU %d "
10745                                         "irq %d eq %d flag x%x\n",
10746                                         cpu, cpup->irq, cpup->eq, cpup->flag);
10747                 }
10748         }
10749
10750         /* After looking at each irq vector assigned to this pcidev, its
10751          * possible to see that not ALL CPUs have been accounted for.
10752          * Next we will set any unassigned (unaffinitized) cpu map
10753          * entries to a IRQ on the same phys_id.
10754          */
10755         first_cpu = cpumask_first(cpu_present_mask);
10756         start_cpu = first_cpu;
10757
10758         for_each_present_cpu(cpu) {
10759                 cpup = &phba->sli4_hba.cpu_map[cpu];
10760
10761                 /* Is this CPU entry unassigned */
10762                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10763                         /* Mark CPU as IRQ not assigned by the kernel */
10764                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10765
10766                         /* If so, find a new_cpup thats on the the SAME
10767                          * phys_id as cpup. start_cpu will start where we
10768                          * left off so all unassigned entries don't get assgined
10769                          * the IRQ of the first entry.
10770                          */
10771                         new_cpu = start_cpu;
10772                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10773                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10774                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10775                                     (new_cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10776                                     (new_cpup->phys_id == cpup->phys_id))
10777                                         goto found_same;
10778                                 new_cpu = cpumask_next(
10779                                         new_cpu, cpu_present_mask);
10780                                 if (new_cpu == nr_cpumask_bits)
10781                                         new_cpu = first_cpu;
10782                         }
10783                         /* At this point, we leave the CPU as unassigned */
10784                         continue;
10785 found_same:
10786                         /* We found a matching phys_id, so copy the IRQ info */
10787                         cpup->eq = new_cpup->eq;
10788                         cpup->irq = new_cpup->irq;
10789
10790                         /* Bump start_cpu to the next slot to minmize the
10791                          * chance of having multiple unassigned CPU entries
10792                          * selecting the same IRQ.
10793                          */
10794                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10795                         if (start_cpu == nr_cpumask_bits)
10796                                 start_cpu = first_cpu;
10797
10798                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10799                                         "3337 Set Affinity: CPU %d "
10800                                         "irq %d from id %d same "
10801                                         "phys_id (%d)\n",
10802                                         cpu, cpup->irq, new_cpu, cpup->phys_id);
10803                 }
10804         }
10805
10806         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10807         start_cpu = first_cpu;
10808
10809         for_each_present_cpu(cpu) {
10810                 cpup = &phba->sli4_hba.cpu_map[cpu];
10811
10812                 /* Is this entry unassigned */
10813                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10814                         /* Mark it as IRQ not assigned by the kernel */
10815                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10816
10817                         /* If so, find a new_cpup thats on ANY phys_id
10818                          * as the cpup. start_cpu will start where we
10819                          * left off so all unassigned entries don't get
10820                          * assigned the IRQ of the first entry.
10821                          */
10822                         new_cpu = start_cpu;
10823                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10824                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10825                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10826                                     (new_cpup->irq != LPFC_VECTOR_MAP_EMPTY))
10827                                         goto found_any;
10828                                 new_cpu = cpumask_next(
10829                                         new_cpu, cpu_present_mask);
10830                                 if (new_cpu == nr_cpumask_bits)
10831                                         new_cpu = first_cpu;
10832                         }
10833                         /* We should never leave an entry unassigned */
10834                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10835                                         "3339 Set Affinity: CPU %d "
10836                                         "irq %d UNASSIGNED\n",
10837                                         cpup->hdwq, cpup->irq);
10838                         continue;
10839 found_any:
10840                         /* We found an available entry, copy the IRQ info */
10841                         cpup->eq = new_cpup->eq;
10842                         cpup->irq = new_cpup->irq;
10843
10844                         /* Bump start_cpu to the next slot to minmize the
10845                          * chance of having multiple unassigned CPU entries
10846                          * selecting the same IRQ.
10847                          */
10848                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10849                         if (start_cpu == nr_cpumask_bits)
10850                                 start_cpu = first_cpu;
10851
10852                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10853                                         "3338 Set Affinity: CPU %d "
10854                                         "irq %d from id %d (%d/%d)\n",
10855                                         cpu, cpup->irq, new_cpu,
10856                                         new_cpup->phys_id, new_cpup->core_id);
10857                 }
10858         }
10859
10860         /* Assign hdwq indices that are unique across all cpus in the map
10861          * that are also FIRST_CPUs.
10862          */
10863         idx = 0;
10864         for_each_present_cpu(cpu) {
10865                 cpup = &phba->sli4_hba.cpu_map[cpu];
10866
10867                 /* Only FIRST IRQs get a hdwq index assignment. */
10868                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10869                         continue;
10870
10871                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
10872                 cpup->hdwq = idx;
10873                 idx++;
10874                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10875                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
10876                                 "hdwq %d eq %d irq %d flg x%x\n",
10877                                 cpu, cpup->phys_id, cpup->core_id,
10878                                 cpup->hdwq, cpup->eq, cpup->irq, cpup->flag);
10879         }
10880         /* Finally we need to associate a hdwq with each cpu_map entry
10881          * This will be 1 to 1 - hdwq to cpu, unless there are less
10882          * hardware queues then CPUs. For that case we will just round-robin
10883          * the available hardware queues as they get assigned to CPUs.
10884          * The next_idx is the idx from the FIRST_CPU loop above to account
10885          * for irq_chann < hdwq.  The idx is used for round-robin assignments
10886          * and needs to start at 0.
10887          */
10888         next_idx = idx;
10889         start_cpu = 0;
10890         idx = 0;
10891         for_each_present_cpu(cpu) {
10892                 cpup = &phba->sli4_hba.cpu_map[cpu];
10893
10894                 /* FIRST cpus are already mapped. */
10895                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10896                         continue;
10897
10898                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
10899                  * of the unassigned cpus to the next idx so that all
10900                  * hdw queues are fully utilized.
10901                  */
10902                 if (next_idx < phba->cfg_hdw_queue) {
10903                         cpup->hdwq = next_idx;
10904                         next_idx++;
10905                         continue;
10906                 }
10907
10908                 /* Not a First CPU and all hdw_queues are used.  Reuse a
10909                  * Hardware Queue for another CPU, so be smart about it
10910                  * and pick one that has its IRQ/EQ mapped to the same phys_id
10911                  * (CPU package) and core_id.
10912                  */
10913                 new_cpu = start_cpu;
10914                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10915                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10916                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
10917                             new_cpup->phys_id == cpup->phys_id &&
10918                             new_cpup->core_id == cpup->core_id) {
10919                                 goto found_hdwq;
10920                         }
10921                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
10922                         if (new_cpu == nr_cpumask_bits)
10923                                 new_cpu = first_cpu;
10924                 }
10925
10926                 /* If we can't match both phys_id and core_id,
10927                  * settle for just a phys_id match.
10928                  */
10929                 new_cpu = start_cpu;
10930                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10931                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10932                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
10933                             new_cpup->phys_id == cpup->phys_id)
10934                                 goto found_hdwq;
10935
10936                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
10937                         if (new_cpu == nr_cpumask_bits)
10938                                 new_cpu = first_cpu;
10939                 }
10940
10941                 /* Otherwise just round robin on cfg_hdw_queue */
10942                 cpup->hdwq = idx % phba->cfg_hdw_queue;
10943                 idx++;
10944                 goto logit;
10945  found_hdwq:
10946                 /* We found an available entry, copy the IRQ info */
10947                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10948                 if (start_cpu == nr_cpumask_bits)
10949                         start_cpu = first_cpu;
10950                 cpup->hdwq = new_cpup->hdwq;
10951  logit:
10952                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10953                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
10954                                 "hdwq %d eq %d irq %d flg x%x\n",
10955                                 cpu, cpup->phys_id, cpup->core_id,
10956                                 cpup->hdwq, cpup->eq, cpup->irq, cpup->flag);
10957         }
10958
10959         /* The cpu_map array will be used later during initialization
10960          * when EQ / CQ / WQs are allocated and configured.
10961          */
10962         return;
10963 }
10964
10965 /**
10966  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10967  * @phba: pointer to lpfc hba data structure.
10968  *
10969  * This routine is invoked to enable the MSI-X interrupt vectors to device
10970  * with SLI-4 interface spec.
10971  *
10972  * Return codes
10973  * 0 - successful
10974  * other values - error
10975  **/
10976 static int
10977 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10978 {
10979         int vectors, rc, index;
10980         char *name;
10981
10982         /* Set up MSI-X multi-message vectors */
10983         vectors = phba->cfg_irq_chann;
10984
10985         rc = pci_alloc_irq_vectors(phba->pcidev,
10986                                 1,
10987                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10988         if (rc < 0) {
10989                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10990                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10991                 goto vec_fail_out;
10992         }
10993         vectors = rc;
10994
10995         /* Assign MSI-X vectors to interrupt handlers */
10996         for (index = 0; index < vectors; index++) {
10997                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10998                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10999                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11000                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11001
11002                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
11003                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
11004                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11005                          &lpfc_sli4_hba_intr_handler, 0,
11006                          name,
11007                          &phba->sli4_hba.hba_eq_hdl[index]);
11008                 if (rc) {
11009                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11010                                         "0486 MSI-X fast-path (%d) "
11011                                         "request_irq failed (%d)\n", index, rc);
11012                         goto cfg_fail_out;
11013                 }
11014         }
11015
11016         if (vectors != phba->cfg_irq_chann) {
11017                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11018                                 "3238 Reducing IO channels to match number of "
11019                                 "MSI-X vectors, requested %d got %d\n",
11020                                 phba->cfg_irq_chann, vectors);
11021                 if (phba->cfg_irq_chann > vectors)
11022                         phba->cfg_irq_chann = vectors;
11023                 if (phba->nvmet_support && (phba->cfg_nvmet_mrq > vectors))
11024                         phba->cfg_nvmet_mrq = vectors;
11025         }
11026
11027         return rc;
11028
11029 cfg_fail_out:
11030         /* free the irq already requested */
11031         for (--index; index >= 0; index--)
11032                 free_irq(pci_irq_vector(phba->pcidev, index),
11033                                 &phba->sli4_hba.hba_eq_hdl[index]);
11034
11035         /* Unconfigure MSI-X capability structure */
11036         pci_free_irq_vectors(phba->pcidev);
11037
11038 vec_fail_out:
11039         return rc;
11040 }
11041
11042 /**
11043  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11044  * @phba: pointer to lpfc hba data structure.
11045  *
11046  * This routine is invoked to enable the MSI interrupt mode to device with
11047  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11048  * called to enable the MSI vector. The device driver is responsible for
11049  * calling the request_irq() to register MSI vector with a interrupt the
11050  * handler, which is done in this function.
11051  *
11052  * Return codes
11053  *      0 - successful
11054  *      other values - error
11055  **/
11056 static int
11057 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11058 {
11059         int rc, index;
11060
11061         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11062                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11063         if (rc > 0)
11064                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11065                                 "0487 PCI enable MSI mode success.\n");
11066         else {
11067                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11068                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11069                 return rc ? rc : -1;
11070         }
11071
11072         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11073                          0, LPFC_DRIVER_NAME, phba);
11074         if (rc) {
11075                 pci_free_irq_vectors(phba->pcidev);
11076                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11077                                 "0490 MSI request_irq failed (%d)\n", rc);
11078                 return rc;
11079         }
11080
11081         for (index = 0; index < phba->cfg_irq_chann; index++) {
11082                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
11083                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
11084         }
11085
11086         return 0;
11087 }
11088
11089 /**
11090  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11091  * @phba: pointer to lpfc hba data structure.
11092  *
11093  * This routine is invoked to enable device interrupt and associate driver's
11094  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11095  * interface spec. Depends on the interrupt mode configured to the driver,
11096  * the driver will try to fallback from the configured interrupt mode to an
11097  * interrupt mode which is supported by the platform, kernel, and device in
11098  * the order of:
11099  * MSI-X -> MSI -> IRQ.
11100  *
11101  * Return codes
11102  *      0 - successful
11103  *      other values - error
11104  **/
11105 static uint32_t
11106 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11107 {
11108         uint32_t intr_mode = LPFC_INTR_ERROR;
11109         int retval, idx;
11110
11111         if (cfg_mode == 2) {
11112                 /* Preparation before conf_msi mbox cmd */
11113                 retval = 0;
11114                 if (!retval) {
11115                         /* Now, try to enable MSI-X interrupt mode */
11116                         retval = lpfc_sli4_enable_msix(phba);
11117                         if (!retval) {
11118                                 /* Indicate initialization to MSI-X mode */
11119                                 phba->intr_type = MSIX;
11120                                 intr_mode = 2;
11121                         }
11122                 }
11123         }
11124
11125         /* Fallback to MSI if MSI-X initialization failed */
11126         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11127                 retval = lpfc_sli4_enable_msi(phba);
11128                 if (!retval) {
11129                         /* Indicate initialization to MSI mode */
11130                         phba->intr_type = MSI;
11131                         intr_mode = 1;
11132                 }
11133         }
11134
11135         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11136         if (phba->intr_type == NONE) {
11137                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11138                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11139                 if (!retval) {
11140                         struct lpfc_hba_eq_hdl *eqhdl;
11141
11142                         /* Indicate initialization to INTx mode */
11143                         phba->intr_type = INTx;
11144                         intr_mode = 0;
11145
11146                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11147                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
11148                                 eqhdl->idx = idx;
11149                                 eqhdl->phba = phba;
11150                         }
11151                 }
11152         }
11153         return intr_mode;
11154 }
11155
11156 /**
11157  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11158  * @phba: pointer to lpfc hba data structure.
11159  *
11160  * This routine is invoked to disable device interrupt and disassociate
11161  * the driver's interrupt handler(s) from interrupt vector(s) to device
11162  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11163  * will release the interrupt vector(s) for the message signaled interrupt.
11164  **/
11165 static void
11166 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11167 {
11168         /* Disable the currently initialized interrupt mode */
11169         if (phba->intr_type == MSIX) {
11170                 int index;
11171
11172                 /* Free up MSI-X multi-message vectors */
11173                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11174                         irq_set_affinity_hint(
11175                                 pci_irq_vector(phba->pcidev, index),
11176                                 NULL);
11177                         free_irq(pci_irq_vector(phba->pcidev, index),
11178                                         &phba->sli4_hba.hba_eq_hdl[index]);
11179                 }
11180         } else {
11181                 free_irq(phba->pcidev->irq, phba);
11182         }
11183
11184         pci_free_irq_vectors(phba->pcidev);
11185
11186         /* Reset interrupt management states */
11187         phba->intr_type = NONE;
11188         phba->sli.slistat.sli_intr = 0;
11189 }
11190
11191 /**
11192  * lpfc_unset_hba - Unset SLI3 hba device initialization
11193  * @phba: pointer to lpfc hba data structure.
11194  *
11195  * This routine is invoked to unset the HBA device initialization steps to
11196  * a device with SLI-3 interface spec.
11197  **/
11198 static void
11199 lpfc_unset_hba(struct lpfc_hba *phba)
11200 {
11201         struct lpfc_vport *vport = phba->pport;
11202         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11203
11204         spin_lock_irq(shost->host_lock);
11205         vport->load_flag |= FC_UNLOADING;
11206         spin_unlock_irq(shost->host_lock);
11207
11208         kfree(phba->vpi_bmask);
11209         kfree(phba->vpi_ids);
11210
11211         lpfc_stop_hba_timers(phba);
11212
11213         phba->pport->work_port_events = 0;
11214
11215         lpfc_sli_hba_down(phba);
11216
11217         lpfc_sli_brdrestart(phba);
11218
11219         lpfc_sli_disable_intr(phba);
11220
11221         return;
11222 }
11223
11224 /**
11225  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11226  * @phba: Pointer to HBA context object.
11227  *
11228  * This function is called in the SLI4 code path to wait for completion
11229  * of device's XRIs exchange busy. It will check the XRI exchange busy
11230  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11231  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11232  * I/Os every 30 seconds, log error message, and wait forever. Only when
11233  * all XRI exchange busy complete, the driver unload shall proceed with
11234  * invoking the function reset ioctl mailbox command to the CNA and the
11235  * the rest of the driver unload resource release.
11236  **/
11237 static void
11238 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11239 {
11240         struct lpfc_sli4_hdw_queue *qp;
11241         int idx, ccnt;
11242         int wait_time = 0;
11243         int io_xri_cmpl = 1;
11244         int nvmet_xri_cmpl = 1;
11245         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11246
11247         /* Driver just aborted IOs during the hba_unset process.  Pause
11248          * here to give the HBA time to complete the IO and get entries
11249          * into the abts lists.
11250          */
11251         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11252
11253         /* Wait for NVME pending IO to flush back to transport. */
11254         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11255                 lpfc_nvme_wait_for_io_drain(phba);
11256
11257         ccnt = 0;
11258         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11259                 qp = &phba->sli4_hba.hdwq[idx];
11260                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11261                 if (!io_xri_cmpl) /* if list is NOT empty */
11262                         ccnt++;
11263         }
11264         if (ccnt)
11265                 io_xri_cmpl = 0;
11266
11267         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11268                 nvmet_xri_cmpl =
11269                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11270         }
11271
11272         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11273                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11274                         if (!nvmet_xri_cmpl)
11275                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11276                                                 "6424 NVMET XRI exchange busy "
11277                                                 "wait time: %d seconds.\n",
11278                                                 wait_time/1000);
11279                         if (!io_xri_cmpl)
11280                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11281                                                 "6100 IO XRI exchange busy "
11282                                                 "wait time: %d seconds.\n",
11283                                                 wait_time/1000);
11284                         if (!els_xri_cmpl)
11285                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11286                                                 "2878 ELS XRI exchange busy "
11287                                                 "wait time: %d seconds.\n",
11288                                                 wait_time/1000);
11289                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11290                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11291                 } else {
11292                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11293                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11294                 }
11295
11296                 ccnt = 0;
11297                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11298                         qp = &phba->sli4_hba.hdwq[idx];
11299                         io_xri_cmpl = list_empty(
11300                             &qp->lpfc_abts_io_buf_list);
11301                         if (!io_xri_cmpl) /* if list is NOT empty */
11302                                 ccnt++;
11303                 }
11304                 if (ccnt)
11305                         io_xri_cmpl = 0;
11306
11307                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11308                         nvmet_xri_cmpl = list_empty(
11309                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11310                 }
11311                 els_xri_cmpl =
11312                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11313
11314         }
11315 }
11316
11317 /**
11318  * lpfc_sli4_hba_unset - Unset the fcoe hba
11319  * @phba: Pointer to HBA context object.
11320  *
11321  * This function is called in the SLI4 code path to reset the HBA's FCoE
11322  * function. The caller is not required to hold any lock. This routine
11323  * issues PCI function reset mailbox command to reset the FCoE function.
11324  * At the end of the function, it calls lpfc_hba_down_post function to
11325  * free any pending commands.
11326  **/
11327 static void
11328 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11329 {
11330         int wait_cnt = 0;
11331         LPFC_MBOXQ_t *mboxq;
11332         struct pci_dev *pdev = phba->pcidev;
11333
11334         lpfc_stop_hba_timers(phba);
11335         if (phba->pport)
11336                 phba->sli4_hba.intr_enable = 0;
11337
11338         /*
11339          * Gracefully wait out the potential current outstanding asynchronous
11340          * mailbox command.
11341          */
11342
11343         /* First, block any pending async mailbox command from posted */
11344         spin_lock_irq(&phba->hbalock);
11345         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11346         spin_unlock_irq(&phba->hbalock);
11347         /* Now, trying to wait it out if we can */
11348         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11349                 msleep(10);
11350                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11351                         break;
11352         }
11353         /* Forcefully release the outstanding mailbox command if timed out */
11354         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11355                 spin_lock_irq(&phba->hbalock);
11356                 mboxq = phba->sli.mbox_active;
11357                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11358                 __lpfc_mbox_cmpl_put(phba, mboxq);
11359                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11360                 phba->sli.mbox_active = NULL;
11361                 spin_unlock_irq(&phba->hbalock);
11362         }
11363
11364         /* Abort all iocbs associated with the hba */
11365         lpfc_sli_hba_iocb_abort(phba);
11366
11367         /* Wait for completion of device XRI exchange busy */
11368         lpfc_sli4_xri_exchange_busy_wait(phba);
11369
11370         /* Disable PCI subsystem interrupt */
11371         lpfc_sli4_disable_intr(phba);
11372
11373         /* Disable SR-IOV if enabled */
11374         if (phba->cfg_sriov_nr_virtfn)
11375                 pci_disable_sriov(pdev);
11376
11377         /* Stop kthread signal shall trigger work_done one more time */
11378         kthread_stop(phba->worker_thread);
11379
11380         /* Disable FW logging to host memory */
11381         lpfc_ras_stop_fwlog(phba);
11382
11383         /* Unset the queues shared with the hardware then release all
11384          * allocated resources.
11385          */
11386         lpfc_sli4_queue_unset(phba);
11387         lpfc_sli4_queue_destroy(phba);
11388
11389         /* Reset SLI4 HBA FCoE function */
11390         lpfc_pci_function_reset(phba);
11391
11392         /* Free RAS DMA memory */
11393         if (phba->ras_fwlog.ras_enabled)
11394                 lpfc_sli4_ras_dma_free(phba);
11395
11396         /* Stop the SLI4 device port */
11397         if (phba->pport)
11398                 phba->pport->work_port_events = 0;
11399 }
11400
11401  /**
11402  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11403  * @phba: Pointer to HBA context object.
11404  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11405  *
11406  * This function is called in the SLI4 code path to read the port's
11407  * sli4 capabilities.
11408  *
11409  * This function may be be called from any context that can block-wait
11410  * for the completion.  The expectation is that this routine is called
11411  * typically from probe_one or from the online routine.
11412  **/
11413 int
11414 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11415 {
11416         int rc;
11417         struct lpfc_mqe *mqe;
11418         struct lpfc_pc_sli4_params *sli4_params;
11419         uint32_t mbox_tmo;
11420
11421         rc = 0;
11422         mqe = &mboxq->u.mqe;
11423
11424         /* Read the port's SLI4 Parameters port capabilities */
11425         lpfc_pc_sli4_params(mboxq);
11426         if (!phba->sli4_hba.intr_enable)
11427                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11428         else {
11429                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11430                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11431         }
11432
11433         if (unlikely(rc))
11434                 return 1;
11435
11436         sli4_params = &phba->sli4_hba.pc_sli4_params;
11437         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11438         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11439         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11440         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11441                                              &mqe->un.sli4_params);
11442         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11443                                              &mqe->un.sli4_params);
11444         sli4_params->proto_types = mqe->un.sli4_params.word3;
11445         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11446         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11447         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11448         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11449         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11450         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11451         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11452         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11453         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11454         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11455         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11456         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11457         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11458         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11459         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11460         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11461         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11462         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11463         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11464         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11465
11466         /* Make sure that sge_supp_len can be handled by the driver */
11467         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11468                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11469
11470         return rc;
11471 }
11472
11473 /**
11474  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11475  * @phba: Pointer to HBA context object.
11476  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11477  *
11478  * This function is called in the SLI4 code path to read the port's
11479  * sli4 capabilities.
11480  *
11481  * This function may be be called from any context that can block-wait
11482  * for the completion.  The expectation is that this routine is called
11483  * typically from probe_one or from the online routine.
11484  **/
11485 int
11486 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11487 {
11488         int rc;
11489         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11490         struct lpfc_pc_sli4_params *sli4_params;
11491         uint32_t mbox_tmo;
11492         int length;
11493         bool exp_wqcq_pages = true;
11494         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11495
11496         /*
11497          * By default, the driver assumes the SLI4 port requires RPI
11498          * header postings.  The SLI4_PARAM response will correct this
11499          * assumption.
11500          */
11501         phba->sli4_hba.rpi_hdrs_in_use = 1;
11502
11503         /* Read the port's SLI4 Config Parameters */
11504         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11505                   sizeof(struct lpfc_sli4_cfg_mhdr));
11506         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11507                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11508                          length, LPFC_SLI4_MBX_EMBED);
11509         if (!phba->sli4_hba.intr_enable)
11510                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11511         else {
11512                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11513                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11514         }
11515         if (unlikely(rc))
11516                 return rc;
11517         sli4_params = &phba->sli4_hba.pc_sli4_params;
11518         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11519         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11520         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
11521         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
11522         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
11523                                              mbx_sli4_parameters);
11524         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
11525                                              mbx_sli4_parameters);
11526         if (bf_get(cfg_phwq, mbx_sli4_parameters))
11527                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
11528         else
11529                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
11530         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
11531         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
11532         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
11533         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
11534         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
11535         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
11536         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
11537         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
11538         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
11539         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
11540         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
11541         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
11542                                             mbx_sli4_parameters);
11543         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
11544         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
11545                                            mbx_sli4_parameters);
11546         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
11547         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
11548
11549         /* Check for Extended Pre-Registered SGL support */
11550         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
11551
11552         /* Check for firmware nvme support */
11553         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
11554                      bf_get(cfg_xib, mbx_sli4_parameters));
11555
11556         if (rc) {
11557                 /* Save this to indicate the Firmware supports NVME */
11558                 sli4_params->nvme = 1;
11559
11560                 /* Firmware NVME support, check driver FC4 NVME support */
11561                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
11562                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11563                                         "6133 Disabling NVME support: "
11564                                         "FC4 type not supported: x%x\n",
11565                                         phba->cfg_enable_fc4_type);
11566                         goto fcponly;
11567                 }
11568         } else {
11569                 /* No firmware NVME support, check driver FC4 NVME support */
11570                 sli4_params->nvme = 0;
11571                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11572                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
11573                                         "6101 Disabling NVME support: Not "
11574                                         "supported by firmware (%d %d) x%x\n",
11575                                         bf_get(cfg_nvme, mbx_sli4_parameters),
11576                                         bf_get(cfg_xib, mbx_sli4_parameters),
11577                                         phba->cfg_enable_fc4_type);
11578 fcponly:
11579                         phba->nvme_support = 0;
11580                         phba->nvmet_support = 0;
11581                         phba->cfg_nvmet_mrq = 0;
11582                         phba->cfg_nvme_seg_cnt = 0;
11583
11584                         /* If no FC4 type support, move to just SCSI support */
11585                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
11586                                 return -ENODEV;
11587                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
11588                 }
11589         }
11590
11591         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
11592          * accommodate 512K and 1M IOs in a single nvme buf and supply
11593          * enough NVME LS iocb buffers for larger connectivity counts.
11594          */
11595         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11596                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
11597                 phba->cfg_iocb_cnt = 5;
11598         }
11599
11600         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
11601         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11602             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
11603                 phba->cfg_enable_pbde = 0;
11604
11605         /*
11606          * To support Suppress Response feature we must satisfy 3 conditions.
11607          * lpfc_suppress_rsp module parameter must be set (default).
11608          * In SLI4-Parameters Descriptor:
11609          * Extended Inline Buffers (XIB) must be supported.
11610          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
11611          * (double negative).
11612          */
11613         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
11614             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
11615                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
11616         else
11617                 phba->cfg_suppress_rsp = 0;
11618
11619         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
11620                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
11621
11622         /* Make sure that sge_supp_len can be handled by the driver */
11623         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11624                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11625
11626         /*
11627          * Check whether the adapter supports an embedded copy of the
11628          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
11629          * to use this option, 128-byte WQEs must be used.
11630          */
11631         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
11632                 phba->fcp_embed_io = 1;
11633         else
11634                 phba->fcp_embed_io = 0;
11635
11636         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11637                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
11638                         bf_get(cfg_xib, mbx_sli4_parameters),
11639                         phba->cfg_enable_pbde,
11640                         phba->fcp_embed_io, phba->nvme_support,
11641                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
11642
11643         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
11644             LPFC_SLI_INTF_IF_TYPE_2) &&
11645             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
11646                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
11647                 exp_wqcq_pages = false;
11648
11649         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
11650             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
11651             exp_wqcq_pages &&
11652             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
11653                 phba->enab_exp_wqcq_pages = 1;
11654         else
11655                 phba->enab_exp_wqcq_pages = 0;
11656         /*
11657          * Check if the SLI port supports MDS Diagnostics
11658          */
11659         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
11660                 phba->mds_diags_support = 1;
11661         else
11662                 phba->mds_diags_support = 0;
11663
11664         /*
11665          * Check if the SLI port supports NSLER
11666          */
11667         if (bf_get(cfg_nsler, mbx_sli4_parameters))
11668                 phba->nsler = 1;
11669         else
11670                 phba->nsler = 0;
11671
11672         return 0;
11673 }
11674
11675 /**
11676  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
11677  * @pdev: pointer to PCI device
11678  * @pid: pointer to PCI device identifier
11679  *
11680  * This routine is to be called to attach a device with SLI-3 interface spec
11681  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11682  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11683  * information of the device and driver to see if the driver state that it can
11684  * support this kind of device. If the match is successful, the driver core
11685  * invokes this routine. If this routine determines it can claim the HBA, it
11686  * does all the initialization that it needs to do to handle the HBA properly.
11687  *
11688  * Return code
11689  *      0 - driver can claim the device
11690  *      negative value - driver can not claim the device
11691  **/
11692 static int
11693 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
11694 {
11695         struct lpfc_hba   *phba;
11696         struct lpfc_vport *vport = NULL;
11697         struct Scsi_Host  *shost = NULL;
11698         int error;
11699         uint32_t cfg_mode, intr_mode;
11700
11701         /* Allocate memory for HBA structure */
11702         phba = lpfc_hba_alloc(pdev);
11703         if (!phba)
11704                 return -ENOMEM;
11705
11706         /* Perform generic PCI device enabling operation */
11707         error = lpfc_enable_pci_dev(phba);
11708         if (error)
11709                 goto out_free_phba;
11710
11711         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
11712         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
11713         if (error)
11714                 goto out_disable_pci_dev;
11715
11716         /* Set up SLI-3 specific device PCI memory space */
11717         error = lpfc_sli_pci_mem_setup(phba);
11718         if (error) {
11719                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11720                                 "1402 Failed to set up pci memory space.\n");
11721                 goto out_disable_pci_dev;
11722         }
11723
11724         /* Set up SLI-3 specific device driver resources */
11725         error = lpfc_sli_driver_resource_setup(phba);
11726         if (error) {
11727                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11728                                 "1404 Failed to set up driver resource.\n");
11729                 goto out_unset_pci_mem_s3;
11730         }
11731
11732         /* Initialize and populate the iocb list per host */
11733
11734         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11735         if (error) {
11736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11737                                 "1405 Failed to initialize iocb list.\n");
11738                 goto out_unset_driver_resource_s3;
11739         }
11740
11741         /* Set up common device driver resources */
11742         error = lpfc_setup_driver_resource_phase2(phba);
11743         if (error) {
11744                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11745                                 "1406 Failed to set up driver resource.\n");
11746                 goto out_free_iocb_list;
11747         }
11748
11749         /* Get the default values for Model Name and Description */
11750         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11751
11752         /* Create SCSI host to the physical port */
11753         error = lpfc_create_shost(phba);
11754         if (error) {
11755                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11756                                 "1407 Failed to create scsi host.\n");
11757                 goto out_unset_driver_resource;
11758         }
11759
11760         /* Configure sysfs attributes */
11761         vport = phba->pport;
11762         error = lpfc_alloc_sysfs_attr(vport);
11763         if (error) {
11764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11765                                 "1476 Failed to allocate sysfs attr\n");
11766                 goto out_destroy_shost;
11767         }
11768
11769         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11770         /* Now, trying to enable interrupt and bring up the device */
11771         cfg_mode = phba->cfg_use_msi;
11772         while (true) {
11773                 /* Put device to a known state before enabling interrupt */
11774                 lpfc_stop_port(phba);
11775                 /* Configure and enable interrupt */
11776                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11777                 if (intr_mode == LPFC_INTR_ERROR) {
11778                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11779                                         "0431 Failed to enable interrupt.\n");
11780                         error = -ENODEV;
11781                         goto out_free_sysfs_attr;
11782                 }
11783                 /* SLI-3 HBA setup */
11784                 if (lpfc_sli_hba_setup(phba)) {
11785                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11786                                         "1477 Failed to set up hba\n");
11787                         error = -ENODEV;
11788                         goto out_remove_device;
11789                 }
11790
11791                 /* Wait 50ms for the interrupts of previous mailbox commands */
11792                 msleep(50);
11793                 /* Check active interrupts on message signaled interrupts */
11794                 if (intr_mode == 0 ||
11795                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11796                         /* Log the current active interrupt mode */
11797                         phba->intr_mode = intr_mode;
11798                         lpfc_log_intr_mode(phba, intr_mode);
11799                         break;
11800                 } else {
11801                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11802                                         "0447 Configure interrupt mode (%d) "
11803                                         "failed active interrupt test.\n",
11804                                         intr_mode);
11805                         /* Disable the current interrupt mode */
11806                         lpfc_sli_disable_intr(phba);
11807                         /* Try next level of interrupt mode */
11808                         cfg_mode = --intr_mode;
11809                 }
11810         }
11811
11812         /* Perform post initialization setup */
11813         lpfc_post_init_setup(phba);
11814
11815         /* Check if there are static vports to be created. */
11816         lpfc_create_static_vport(phba);
11817
11818         return 0;
11819
11820 out_remove_device:
11821         lpfc_unset_hba(phba);
11822 out_free_sysfs_attr:
11823         lpfc_free_sysfs_attr(vport);
11824 out_destroy_shost:
11825         lpfc_destroy_shost(phba);
11826 out_unset_driver_resource:
11827         lpfc_unset_driver_resource_phase2(phba);
11828 out_free_iocb_list:
11829         lpfc_free_iocb_list(phba);
11830 out_unset_driver_resource_s3:
11831         lpfc_sli_driver_resource_unset(phba);
11832 out_unset_pci_mem_s3:
11833         lpfc_sli_pci_mem_unset(phba);
11834 out_disable_pci_dev:
11835         lpfc_disable_pci_dev(phba);
11836         if (shost)
11837                 scsi_host_put(shost);
11838 out_free_phba:
11839         lpfc_hba_free(phba);
11840         return error;
11841 }
11842
11843 /**
11844  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11845  * @pdev: pointer to PCI device
11846  *
11847  * This routine is to be called to disattach a device with SLI-3 interface
11848  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11849  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11850  * device to be removed from the PCI subsystem properly.
11851  **/
11852 static void
11853 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11854 {
11855         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11856         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11857         struct lpfc_vport **vports;
11858         struct lpfc_hba   *phba = vport->phba;
11859         int i;
11860
11861         spin_lock_irq(&phba->hbalock);
11862         vport->load_flag |= FC_UNLOADING;
11863         spin_unlock_irq(&phba->hbalock);
11864
11865         lpfc_free_sysfs_attr(vport);
11866
11867         /* Release all the vports against this physical port */
11868         vports = lpfc_create_vport_work_array(phba);
11869         if (vports != NULL)
11870                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11871                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11872                                 continue;
11873                         fc_vport_terminate(vports[i]->fc_vport);
11874                 }
11875         lpfc_destroy_vport_work_array(phba, vports);
11876
11877         /* Remove FC host and then SCSI host with the physical port */
11878         fc_remove_host(shost);
11879         scsi_remove_host(shost);
11880
11881         lpfc_cleanup(vport);
11882
11883         /*
11884          * Bring down the SLI Layer. This step disable all interrupts,
11885          * clears the rings, discards all mailbox commands, and resets
11886          * the HBA.
11887          */
11888
11889         /* HBA interrupt will be disabled after this call */
11890         lpfc_sli_hba_down(phba);
11891         /* Stop kthread signal shall trigger work_done one more time */
11892         kthread_stop(phba->worker_thread);
11893         /* Final cleanup of txcmplq and reset the HBA */
11894         lpfc_sli_brdrestart(phba);
11895
11896         kfree(phba->vpi_bmask);
11897         kfree(phba->vpi_ids);
11898
11899         lpfc_stop_hba_timers(phba);
11900         spin_lock_irq(&phba->port_list_lock);
11901         list_del_init(&vport->listentry);
11902         spin_unlock_irq(&phba->port_list_lock);
11903
11904         lpfc_debugfs_terminate(vport);
11905
11906         /* Disable SR-IOV if enabled */
11907         if (phba->cfg_sriov_nr_virtfn)
11908                 pci_disable_sriov(pdev);
11909
11910         /* Disable interrupt */
11911         lpfc_sli_disable_intr(phba);
11912
11913         scsi_host_put(shost);
11914
11915         /*
11916          * Call scsi_free before mem_free since scsi bufs are released to their
11917          * corresponding pools here.
11918          */
11919         lpfc_scsi_free(phba);
11920         lpfc_free_iocb_list(phba);
11921
11922         lpfc_mem_free_all(phba);
11923
11924         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11925                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11926
11927         /* Free resources associated with SLI2 interface */
11928         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11929                           phba->slim2p.virt, phba->slim2p.phys);
11930
11931         /* unmap adapter SLIM and Control Registers */
11932         iounmap(phba->ctrl_regs_memmap_p);
11933         iounmap(phba->slim_memmap_p);
11934
11935         lpfc_hba_free(phba);
11936
11937         pci_release_mem_regions(pdev);
11938         pci_disable_device(pdev);
11939 }
11940
11941 /**
11942  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11943  * @pdev: pointer to PCI device
11944  * @msg: power management message
11945  *
11946  * This routine is to be called from the kernel's PCI subsystem to support
11947  * system Power Management (PM) to device with SLI-3 interface spec. When
11948  * PM invokes this method, it quiesces the device by stopping the driver's
11949  * worker thread for the device, turning off device's interrupt and DMA,
11950  * and bring the device offline. Note that as the driver implements the
11951  * minimum PM requirements to a power-aware driver's PM support for the
11952  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11953  * to the suspend() method call will be treated as SUSPEND and the driver will
11954  * fully reinitialize its device during resume() method call, the driver will
11955  * set device to PCI_D3hot state in PCI config space instead of setting it
11956  * according to the @msg provided by the PM.
11957  *
11958  * Return code
11959  *      0 - driver suspended the device
11960  *      Error otherwise
11961  **/
11962 static int
11963 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11964 {
11965         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11966         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11967
11968         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11969                         "0473 PCI device Power Management suspend.\n");
11970
11971         /* Bring down the device */
11972         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11973         lpfc_offline(phba);
11974         kthread_stop(phba->worker_thread);
11975
11976         /* Disable interrupt from device */
11977         lpfc_sli_disable_intr(phba);
11978
11979         /* Save device state to PCI config space */
11980         pci_save_state(pdev);
11981         pci_set_power_state(pdev, PCI_D3hot);
11982
11983         return 0;
11984 }
11985
11986 /**
11987  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11988  * @pdev: pointer to PCI device
11989  *
11990  * This routine is to be called from the kernel's PCI subsystem to support
11991  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11992  * invokes this method, it restores the device's PCI config space state and
11993  * fully reinitializes the device and brings it online. Note that as the
11994  * driver implements the minimum PM requirements to a power-aware driver's
11995  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11996  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11997  * driver will fully reinitialize its device during resume() method call,
11998  * the device will be set to PCI_D0 directly in PCI config space before
11999  * restoring the state.
12000  *
12001  * Return code
12002  *      0 - driver suspended the device
12003  *      Error otherwise
12004  **/
12005 static int
12006 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12007 {
12008         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12009         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12010         uint32_t intr_mode;
12011         int error;
12012
12013         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12014                         "0452 PCI device Power Management resume.\n");
12015
12016         /* Restore device state from PCI config space */
12017         pci_set_power_state(pdev, PCI_D0);
12018         pci_restore_state(pdev);
12019
12020         /*
12021          * As the new kernel behavior of pci_restore_state() API call clears
12022          * device saved_state flag, need to save the restored state again.
12023          */
12024         pci_save_state(pdev);
12025
12026         if (pdev->is_busmaster)
12027                 pci_set_master(pdev);
12028
12029         /* Startup the kernel thread for this host adapter. */
12030         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12031                                         "lpfc_worker_%d", phba->brd_no);
12032         if (IS_ERR(phba->worker_thread)) {
12033                 error = PTR_ERR(phba->worker_thread);
12034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12035                                 "0434 PM resume failed to start worker "
12036                                 "thread: error=x%x.\n", error);
12037                 return error;
12038         }
12039
12040         /* Configure and enable interrupt */
12041         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12042         if (intr_mode == LPFC_INTR_ERROR) {
12043                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12044                                 "0430 PM resume Failed to enable interrupt\n");
12045                 return -EIO;
12046         } else
12047                 phba->intr_mode = intr_mode;
12048
12049         /* Restart HBA and bring it online */
12050         lpfc_sli_brdrestart(phba);
12051         lpfc_online(phba);
12052
12053         /* Log the current active interrupt mode */
12054         lpfc_log_intr_mode(phba, phba->intr_mode);
12055
12056         return 0;
12057 }
12058
12059 /**
12060  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12061  * @phba: pointer to lpfc hba data structure.
12062  *
12063  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12064  * aborts all the outstanding SCSI I/Os to the pci device.
12065  **/
12066 static void
12067 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12068 {
12069         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12070                         "2723 PCI channel I/O abort preparing for recovery\n");
12071
12072         /*
12073          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12074          * and let the SCSI mid-layer to retry them to recover.
12075          */
12076         lpfc_sli_abort_fcp_rings(phba);
12077 }
12078
12079 /**
12080  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12081  * @phba: pointer to lpfc hba data structure.
12082  *
12083  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12084  * disables the device interrupt and pci device, and aborts the internal FCP
12085  * pending I/Os.
12086  **/
12087 static void
12088 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12089 {
12090         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12091                         "2710 PCI channel disable preparing for reset\n");
12092
12093         /* Block any management I/Os to the device */
12094         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12095
12096         /* Block all SCSI devices' I/Os on the host */
12097         lpfc_scsi_dev_block(phba);
12098
12099         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12100         lpfc_sli_flush_io_rings(phba);
12101
12102         /* stop all timers */
12103         lpfc_stop_hba_timers(phba);
12104
12105         /* Disable interrupt and pci device */
12106         lpfc_sli_disable_intr(phba);
12107         pci_disable_device(phba->pcidev);
12108 }
12109
12110 /**
12111  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12112  * @phba: pointer to lpfc hba data structure.
12113  *
12114  * This routine is called to prepare the SLI3 device for PCI slot permanently
12115  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12116  * pending I/Os.
12117  **/
12118 static void
12119 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12120 {
12121         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12122                         "2711 PCI channel permanent disable for failure\n");
12123         /* Block all SCSI devices' I/Os on the host */
12124         lpfc_scsi_dev_block(phba);
12125
12126         /* stop all timers */
12127         lpfc_stop_hba_timers(phba);
12128
12129         /* Clean up all driver's outstanding SCSI I/Os */
12130         lpfc_sli_flush_io_rings(phba);
12131 }
12132
12133 /**
12134  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12135  * @pdev: pointer to PCI device.
12136  * @state: the current PCI connection state.
12137  *
12138  * This routine is called from the PCI subsystem for I/O error handling to
12139  * device with SLI-3 interface spec. This function is called by the PCI
12140  * subsystem after a PCI bus error affecting this device has been detected.
12141  * When this function is invoked, it will need to stop all the I/Os and
12142  * interrupt(s) to the device. Once that is done, it will return
12143  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12144  * as desired.
12145  *
12146  * Return codes
12147  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12148  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12149  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12150  **/
12151 static pci_ers_result_t
12152 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12153 {
12154         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12155         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12156
12157         switch (state) {
12158         case pci_channel_io_normal:
12159                 /* Non-fatal error, prepare for recovery */
12160                 lpfc_sli_prep_dev_for_recover(phba);
12161                 return PCI_ERS_RESULT_CAN_RECOVER;
12162         case pci_channel_io_frozen:
12163                 /* Fatal error, prepare for slot reset */
12164                 lpfc_sli_prep_dev_for_reset(phba);
12165                 return PCI_ERS_RESULT_NEED_RESET;
12166         case pci_channel_io_perm_failure:
12167                 /* Permanent failure, prepare for device down */
12168                 lpfc_sli_prep_dev_for_perm_failure(phba);
12169                 return PCI_ERS_RESULT_DISCONNECT;
12170         default:
12171                 /* Unknown state, prepare and request slot reset */
12172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12173                                 "0472 Unknown PCI error state: x%x\n", state);
12174                 lpfc_sli_prep_dev_for_reset(phba);
12175                 return PCI_ERS_RESULT_NEED_RESET;
12176         }
12177 }
12178
12179 /**
12180  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12181  * @pdev: pointer to PCI device.
12182  *
12183  * This routine is called from the PCI subsystem for error handling to
12184  * device with SLI-3 interface spec. This is called after PCI bus has been
12185  * reset to restart the PCI card from scratch, as if from a cold-boot.
12186  * During the PCI subsystem error recovery, after driver returns
12187  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12188  * recovery and then call this routine before calling the .resume method
12189  * to recover the device. This function will initialize the HBA device,
12190  * enable the interrupt, but it will just put the HBA to offline state
12191  * without passing any I/O traffic.
12192  *
12193  * Return codes
12194  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12195  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12196  */
12197 static pci_ers_result_t
12198 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12199 {
12200         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12201         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12202         struct lpfc_sli *psli = &phba->sli;
12203         uint32_t intr_mode;
12204
12205         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12206         if (pci_enable_device_mem(pdev)) {
12207                 printk(KERN_ERR "lpfc: Cannot re-enable "
12208                         "PCI device after reset.\n");
12209                 return PCI_ERS_RESULT_DISCONNECT;
12210         }
12211
12212         pci_restore_state(pdev);
12213
12214         /*
12215          * As the new kernel behavior of pci_restore_state() API call clears
12216          * device saved_state flag, need to save the restored state again.
12217          */
12218         pci_save_state(pdev);
12219
12220         if (pdev->is_busmaster)
12221                 pci_set_master(pdev);
12222
12223         spin_lock_irq(&phba->hbalock);
12224         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12225         spin_unlock_irq(&phba->hbalock);
12226
12227         /* Configure and enable interrupt */
12228         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12229         if (intr_mode == LPFC_INTR_ERROR) {
12230                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12231                                 "0427 Cannot re-enable interrupt after "
12232                                 "slot reset.\n");
12233                 return PCI_ERS_RESULT_DISCONNECT;
12234         } else
12235                 phba->intr_mode = intr_mode;
12236
12237         /* Take device offline, it will perform cleanup */
12238         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12239         lpfc_offline(phba);
12240         lpfc_sli_brdrestart(phba);
12241
12242         /* Log the current active interrupt mode */
12243         lpfc_log_intr_mode(phba, phba->intr_mode);
12244
12245         return PCI_ERS_RESULT_RECOVERED;
12246 }
12247
12248 /**
12249  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12250  * @pdev: pointer to PCI device
12251  *
12252  * This routine is called from the PCI subsystem for error handling to device
12253  * with SLI-3 interface spec. It is called when kernel error recovery tells
12254  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12255  * error recovery. After this call, traffic can start to flow from this device
12256  * again.
12257  */
12258 static void
12259 lpfc_io_resume_s3(struct pci_dev *pdev)
12260 {
12261         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12262         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12263
12264         /* Bring device online, it will be no-op for non-fatal error resume */
12265         lpfc_online(phba);
12266 }
12267
12268 /**
12269  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12270  * @phba: pointer to lpfc hba data structure.
12271  *
12272  * returns the number of ELS/CT IOCBs to reserve
12273  **/
12274 int
12275 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12276 {
12277         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12278
12279         if (phba->sli_rev == LPFC_SLI_REV4) {
12280                 if (max_xri <= 100)
12281                         return 10;
12282                 else if (max_xri <= 256)
12283                         return 25;
12284                 else if (max_xri <= 512)
12285                         return 50;
12286                 else if (max_xri <= 1024)
12287                         return 100;
12288                 else if (max_xri <= 1536)
12289                         return 150;
12290                 else if (max_xri <= 2048)
12291                         return 200;
12292                 else
12293                         return 250;
12294         } else
12295                 return 0;
12296 }
12297
12298 /**
12299  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12300  * @phba: pointer to lpfc hba data structure.
12301  *
12302  * returns the number of ELS/CT + NVMET IOCBs to reserve
12303  **/
12304 int
12305 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12306 {
12307         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12308
12309         if (phba->nvmet_support)
12310                 max_xri += LPFC_NVMET_BUF_POST;
12311         return max_xri;
12312 }
12313
12314
12315 static void
12316 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12317         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12318         const struct firmware *fw)
12319 {
12320         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
12321             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12322              magic_number != MAGIC_NUMER_G6) ||
12323             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12324              magic_number != MAGIC_NUMER_G7))
12325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12326                         "3030 This firmware version is not supported on "
12327                         "this HBA model. Device:%x Magic:%x Type:%x "
12328                         "ID:%x Size %d %zd\n",
12329                         phba->pcidev->device, magic_number, ftype, fid,
12330                         fsize, fw->size);
12331         else
12332                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12333                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
12334                         "ID:%x Size %d %zd\n",
12335                         phba->pcidev->device, magic_number, ftype, fid,
12336                         fsize, fw->size);
12337 }
12338
12339
12340 /**
12341  * lpfc_write_firmware - attempt to write a firmware image to the port
12342  * @fw: pointer to firmware image returned from request_firmware.
12343  * @phba: pointer to lpfc hba data structure.
12344  *
12345  **/
12346 static void
12347 lpfc_write_firmware(const struct firmware *fw, void *context)
12348 {
12349         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12350         char fwrev[FW_REV_STR_SIZE];
12351         struct lpfc_grp_hdr *image;
12352         struct list_head dma_buffer_list;
12353         int i, rc = 0;
12354         struct lpfc_dmabuf *dmabuf, *next;
12355         uint32_t offset = 0, temp_offset = 0;
12356         uint32_t magic_number, ftype, fid, fsize;
12357
12358         /* It can be null in no-wait mode, sanity check */
12359         if (!fw) {
12360                 rc = -ENXIO;
12361                 goto out;
12362         }
12363         image = (struct lpfc_grp_hdr *)fw->data;
12364
12365         magic_number = be32_to_cpu(image->magic_number);
12366         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12367         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12368         fsize = be32_to_cpu(image->size);
12369
12370         INIT_LIST_HEAD(&dma_buffer_list);
12371         lpfc_decode_firmware_rev(phba, fwrev, 1);
12372         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12373                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12374                                 "3023 Updating Firmware, Current Version:%s "
12375                                 "New Version:%s\n",
12376                                 fwrev, image->revision);
12377                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12378                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12379                                          GFP_KERNEL);
12380                         if (!dmabuf) {
12381                                 rc = -ENOMEM;
12382                                 goto release_out;
12383                         }
12384                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12385                                                           SLI4_PAGE_SIZE,
12386                                                           &dmabuf->phys,
12387                                                           GFP_KERNEL);
12388                         if (!dmabuf->virt) {
12389                                 kfree(dmabuf);
12390                                 rc = -ENOMEM;
12391                                 goto release_out;
12392                         }
12393                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12394                 }
12395                 while (offset < fw->size) {
12396                         temp_offset = offset;
12397                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12398                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12399                                         memcpy(dmabuf->virt,
12400                                                fw->data + temp_offset,
12401                                                fw->size - temp_offset);
12402                                         temp_offset = fw->size;
12403                                         break;
12404                                 }
12405                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12406                                        SLI4_PAGE_SIZE);
12407                                 temp_offset += SLI4_PAGE_SIZE;
12408                         }
12409                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12410                                     (fw->size - offset), &offset);
12411                         if (rc) {
12412                                 lpfc_log_write_firmware_error(phba, offset,
12413                                         magic_number, ftype, fid, fsize, fw);
12414                                 goto release_out;
12415                         }
12416                 }
12417                 rc = offset;
12418         } else
12419                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12420                                 "3029 Skipped Firmware update, Current "
12421                                 "Version:%s New Version:%s\n",
12422                                 fwrev, image->revision);
12423
12424 release_out:
12425         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12426                 list_del(&dmabuf->list);
12427                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12428                                   dmabuf->virt, dmabuf->phys);
12429                 kfree(dmabuf);
12430         }
12431         release_firmware(fw);
12432 out:
12433         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12434                         "3024 Firmware update done: %d.\n", rc);
12435         return;
12436 }
12437
12438 /**
12439  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12440  * @phba: pointer to lpfc hba data structure.
12441  *
12442  * This routine is called to perform Linux generic firmware upgrade on device
12443  * that supports such feature.
12444  **/
12445 int
12446 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12447 {
12448         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12449         int ret;
12450         const struct firmware *fw;
12451
12452         /* Only supported on SLI4 interface type 2 for now */
12453         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12454             LPFC_SLI_INTF_IF_TYPE_2)
12455                 return -EPERM;
12456
12457         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12458
12459         if (fw_upgrade == INT_FW_UPGRADE) {
12460                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12461                                         file_name, &phba->pcidev->dev,
12462                                         GFP_KERNEL, (void *)phba,
12463                                         lpfc_write_firmware);
12464         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12465                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12466                 if (!ret)
12467                         lpfc_write_firmware(fw, (void *)phba);
12468         } else {
12469                 ret = -EINVAL;
12470         }
12471
12472         return ret;
12473 }
12474
12475 /**
12476  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12477  * @pdev: pointer to PCI device
12478  * @pid: pointer to PCI device identifier
12479  *
12480  * This routine is called from the kernel's PCI subsystem to device with
12481  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12482  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12483  * information of the device and driver to see if the driver state that it
12484  * can support this kind of device. If the match is successful, the driver
12485  * core invokes this routine. If this routine determines it can claim the HBA,
12486  * it does all the initialization that it needs to do to handle the HBA
12487  * properly.
12488  *
12489  * Return code
12490  *      0 - driver can claim the device
12491  *      negative value - driver can not claim the device
12492  **/
12493 static int
12494 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
12495 {
12496         struct lpfc_hba   *phba;
12497         struct lpfc_vport *vport = NULL;
12498         struct Scsi_Host  *shost = NULL;
12499         int error;
12500         uint32_t cfg_mode, intr_mode;
12501
12502         /* Allocate memory for HBA structure */
12503         phba = lpfc_hba_alloc(pdev);
12504         if (!phba)
12505                 return -ENOMEM;
12506
12507         /* Perform generic PCI device enabling operation */
12508         error = lpfc_enable_pci_dev(phba);
12509         if (error)
12510                 goto out_free_phba;
12511
12512         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
12513         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
12514         if (error)
12515                 goto out_disable_pci_dev;
12516
12517         /* Set up SLI-4 specific device PCI memory space */
12518         error = lpfc_sli4_pci_mem_setup(phba);
12519         if (error) {
12520                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12521                                 "1410 Failed to set up pci memory space.\n");
12522                 goto out_disable_pci_dev;
12523         }
12524
12525         /* Set up SLI-4 Specific device driver resources */
12526         error = lpfc_sli4_driver_resource_setup(phba);
12527         if (error) {
12528                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12529                                 "1412 Failed to set up driver resource.\n");
12530                 goto out_unset_pci_mem_s4;
12531         }
12532
12533         INIT_LIST_HEAD(&phba->active_rrq_list);
12534         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
12535
12536         /* Set up common device driver resources */
12537         error = lpfc_setup_driver_resource_phase2(phba);
12538         if (error) {
12539                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12540                                 "1414 Failed to set up driver resource.\n");
12541                 goto out_unset_driver_resource_s4;
12542         }
12543
12544         /* Get the default values for Model Name and Description */
12545         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12546
12547         /* Now, trying to enable interrupt and bring up the device */
12548         cfg_mode = phba->cfg_use_msi;
12549
12550         /* Put device to a known state before enabling interrupt */
12551         phba->pport = NULL;
12552         lpfc_stop_port(phba);
12553
12554         /* Configure and enable interrupt */
12555         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
12556         if (intr_mode == LPFC_INTR_ERROR) {
12557                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12558                                 "0426 Failed to enable interrupt.\n");
12559                 error = -ENODEV;
12560                 goto out_unset_driver_resource;
12561         }
12562         /* Default to single EQ for non-MSI-X */
12563         if (phba->intr_type != MSIX) {
12564                 phba->cfg_irq_chann = 1;
12565                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12566                         if (phba->nvmet_support)
12567                                 phba->cfg_nvmet_mrq = 1;
12568                 }
12569         }
12570         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
12571
12572         /* Create SCSI host to the physical port */
12573         error = lpfc_create_shost(phba);
12574         if (error) {
12575                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12576                                 "1415 Failed to create scsi host.\n");
12577                 goto out_disable_intr;
12578         }
12579         vport = phba->pport;
12580         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12581
12582         /* Configure sysfs attributes */
12583         error = lpfc_alloc_sysfs_attr(vport);
12584         if (error) {
12585                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12586                                 "1416 Failed to allocate sysfs attr\n");
12587                 goto out_destroy_shost;
12588         }
12589
12590         /* Set up SLI-4 HBA */
12591         if (lpfc_sli4_hba_setup(phba)) {
12592                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12593                                 "1421 Failed to set up hba\n");
12594                 error = -ENODEV;
12595                 goto out_free_sysfs_attr;
12596         }
12597
12598         /* Log the current active interrupt mode */
12599         phba->intr_mode = intr_mode;
12600         lpfc_log_intr_mode(phba, intr_mode);
12601
12602         /* Perform post initialization setup */
12603         lpfc_post_init_setup(phba);
12604
12605         /* NVME support in FW earlier in the driver load corrects the
12606          * FC4 type making a check for nvme_support unnecessary.
12607          */
12608         if (phba->nvmet_support == 0) {
12609                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12610                         /* Create NVME binding with nvme_fc_transport. This
12611                          * ensures the vport is initialized.  If the localport
12612                          * create fails, it should not unload the driver to
12613                          * support field issues.
12614                          */
12615                         error = lpfc_nvme_create_localport(vport);
12616                         if (error) {
12617                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12618                                                 "6004 NVME registration "
12619                                                 "failed, error x%x\n",
12620                                                 error);
12621                         }
12622                 }
12623         }
12624
12625         /* check for firmware upgrade or downgrade */
12626         if (phba->cfg_request_firmware_upgrade)
12627                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
12628
12629         /* Check if there are static vports to be created. */
12630         lpfc_create_static_vport(phba);
12631
12632         /* Enable RAS FW log support */
12633         lpfc_sli4_ras_setup(phba);
12634
12635         return 0;
12636
12637 out_free_sysfs_attr:
12638         lpfc_free_sysfs_attr(vport);
12639 out_destroy_shost:
12640         lpfc_destroy_shost(phba);
12641 out_disable_intr:
12642         lpfc_sli4_disable_intr(phba);
12643 out_unset_driver_resource:
12644         lpfc_unset_driver_resource_phase2(phba);
12645 out_unset_driver_resource_s4:
12646         lpfc_sli4_driver_resource_unset(phba);
12647 out_unset_pci_mem_s4:
12648         lpfc_sli4_pci_mem_unset(phba);
12649 out_disable_pci_dev:
12650         lpfc_disable_pci_dev(phba);
12651         if (shost)
12652                 scsi_host_put(shost);
12653 out_free_phba:
12654         lpfc_hba_free(phba);
12655         return error;
12656 }
12657
12658 /**
12659  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
12660  * @pdev: pointer to PCI device
12661  *
12662  * This routine is called from the kernel's PCI subsystem to device with
12663  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12664  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12665  * device to be removed from the PCI subsystem properly.
12666  **/
12667 static void
12668 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
12669 {
12670         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12671         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12672         struct lpfc_vport **vports;
12673         struct lpfc_hba *phba = vport->phba;
12674         int i;
12675
12676         /* Mark the device unloading flag */
12677         spin_lock_irq(&phba->hbalock);
12678         vport->load_flag |= FC_UNLOADING;
12679         spin_unlock_irq(&phba->hbalock);
12680
12681         /* Free the HBA sysfs attributes */
12682         lpfc_free_sysfs_attr(vport);
12683
12684         /* Release all the vports against this physical port */
12685         vports = lpfc_create_vport_work_array(phba);
12686         if (vports != NULL)
12687                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12688                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12689                                 continue;
12690                         fc_vport_terminate(vports[i]->fc_vport);
12691                 }
12692         lpfc_destroy_vport_work_array(phba, vports);
12693
12694         /* Remove FC host and then SCSI host with the physical port */
12695         fc_remove_host(shost);
12696         scsi_remove_host(shost);
12697
12698         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
12699          * localports are destroyed after to cleanup all transport memory.
12700          */
12701         lpfc_cleanup(vport);
12702         lpfc_nvmet_destroy_targetport(phba);
12703         lpfc_nvme_destroy_localport(vport);
12704
12705         /* De-allocate multi-XRI pools */
12706         if (phba->cfg_xri_rebalancing)
12707                 lpfc_destroy_multixri_pools(phba);
12708
12709         /*
12710          * Bring down the SLI Layer. This step disables all interrupts,
12711          * clears the rings, discards all mailbox commands, and resets
12712          * the HBA FCoE function.
12713          */
12714         lpfc_debugfs_terminate(vport);
12715
12716         lpfc_stop_hba_timers(phba);
12717         spin_lock_irq(&phba->port_list_lock);
12718         list_del_init(&vport->listentry);
12719         spin_unlock_irq(&phba->port_list_lock);
12720
12721         /* Perform scsi free before driver resource_unset since scsi
12722          * buffers are released to their corresponding pools here.
12723          */
12724         lpfc_io_free(phba);
12725         lpfc_free_iocb_list(phba);
12726         lpfc_sli4_hba_unset(phba);
12727
12728         lpfc_unset_driver_resource_phase2(phba);
12729         lpfc_sli4_driver_resource_unset(phba);
12730
12731         /* Unmap adapter Control and Doorbell registers */
12732         lpfc_sli4_pci_mem_unset(phba);
12733
12734         /* Release PCI resources and disable device's PCI function */
12735         scsi_host_put(shost);
12736         lpfc_disable_pci_dev(phba);
12737
12738         /* Finally, free the driver's device data structure */
12739         lpfc_hba_free(phba);
12740
12741         return;
12742 }
12743
12744 /**
12745  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12746  * @pdev: pointer to PCI device
12747  * @msg: power management message
12748  *
12749  * This routine is called from the kernel's PCI subsystem to support system
12750  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12751  * this method, it quiesces the device by stopping the driver's worker
12752  * thread for the device, turning off device's interrupt and DMA, and bring
12753  * the device offline. Note that as the driver implements the minimum PM
12754  * requirements to a power-aware driver's PM support for suspend/resume -- all
12755  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12756  * method call will be treated as SUSPEND and the driver will fully
12757  * reinitialize its device during resume() method call, the driver will set
12758  * device to PCI_D3hot state in PCI config space instead of setting it
12759  * according to the @msg provided by the PM.
12760  *
12761  * Return code
12762  *      0 - driver suspended the device
12763  *      Error otherwise
12764  **/
12765 static int
12766 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12767 {
12768         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12769         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12770
12771         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12772                         "2843 PCI device Power Management suspend.\n");
12773
12774         /* Bring down the device */
12775         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12776         lpfc_offline(phba);
12777         kthread_stop(phba->worker_thread);
12778
12779         /* Disable interrupt from device */
12780         lpfc_sli4_disable_intr(phba);
12781         lpfc_sli4_queue_destroy(phba);
12782
12783         /* Save device state to PCI config space */
12784         pci_save_state(pdev);
12785         pci_set_power_state(pdev, PCI_D3hot);
12786
12787         return 0;
12788 }
12789
12790 /**
12791  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12792  * @pdev: pointer to PCI device
12793  *
12794  * This routine is called from the kernel's PCI subsystem to support system
12795  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12796  * this method, it restores the device's PCI config space state and fully
12797  * reinitializes the device and brings it online. Note that as the driver
12798  * implements the minimum PM requirements to a power-aware driver's PM for
12799  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12800  * to the suspend() method call will be treated as SUSPEND and the driver
12801  * will fully reinitialize its device during resume() method call, the device
12802  * will be set to PCI_D0 directly in PCI config space before restoring the
12803  * state.
12804  *
12805  * Return code
12806  *      0 - driver suspended the device
12807  *      Error otherwise
12808  **/
12809 static int
12810 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12811 {
12812         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12813         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12814         uint32_t intr_mode;
12815         int error;
12816
12817         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12818                         "0292 PCI device Power Management resume.\n");
12819
12820         /* Restore device state from PCI config space */
12821         pci_set_power_state(pdev, PCI_D0);
12822         pci_restore_state(pdev);
12823
12824         /*
12825          * As the new kernel behavior of pci_restore_state() API call clears
12826          * device saved_state flag, need to save the restored state again.
12827          */
12828         pci_save_state(pdev);
12829
12830         if (pdev->is_busmaster)
12831                 pci_set_master(pdev);
12832
12833          /* Startup the kernel thread for this host adapter. */
12834         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12835                                         "lpfc_worker_%d", phba->brd_no);
12836         if (IS_ERR(phba->worker_thread)) {
12837                 error = PTR_ERR(phba->worker_thread);
12838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12839                                 "0293 PM resume failed to start worker "
12840                                 "thread: error=x%x.\n", error);
12841                 return error;
12842         }
12843
12844         /* Configure and enable interrupt */
12845         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12846         if (intr_mode == LPFC_INTR_ERROR) {
12847                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12848                                 "0294 PM resume Failed to enable interrupt\n");
12849                 return -EIO;
12850         } else
12851                 phba->intr_mode = intr_mode;
12852
12853         /* Restart HBA and bring it online */
12854         lpfc_sli_brdrestart(phba);
12855         lpfc_online(phba);
12856
12857         /* Log the current active interrupt mode */
12858         lpfc_log_intr_mode(phba, phba->intr_mode);
12859
12860         return 0;
12861 }
12862
12863 /**
12864  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12865  * @phba: pointer to lpfc hba data structure.
12866  *
12867  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12868  * aborts all the outstanding SCSI I/Os to the pci device.
12869  **/
12870 static void
12871 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12872 {
12873         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12874                         "2828 PCI channel I/O abort preparing for recovery\n");
12875         /*
12876          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12877          * and let the SCSI mid-layer to retry them to recover.
12878          */
12879         lpfc_sli_abort_fcp_rings(phba);
12880 }
12881
12882 /**
12883  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12884  * @phba: pointer to lpfc hba data structure.
12885  *
12886  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12887  * disables the device interrupt and pci device, and aborts the internal FCP
12888  * pending I/Os.
12889  **/
12890 static void
12891 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12892 {
12893         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12894                         "2826 PCI channel disable preparing for reset\n");
12895
12896         /* Block any management I/Os to the device */
12897         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12898
12899         /* Block all SCSI devices' I/Os on the host */
12900         lpfc_scsi_dev_block(phba);
12901
12902         /* Flush all driver's outstanding I/Os as we are to reset */
12903         lpfc_sli_flush_io_rings(phba);
12904
12905         /* stop all timers */
12906         lpfc_stop_hba_timers(phba);
12907
12908         /* Disable interrupt and pci device */
12909         lpfc_sli4_disable_intr(phba);
12910         lpfc_sli4_queue_destroy(phba);
12911         pci_disable_device(phba->pcidev);
12912 }
12913
12914 /**
12915  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12916  * @phba: pointer to lpfc hba data structure.
12917  *
12918  * This routine is called to prepare the SLI4 device for PCI slot permanently
12919  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12920  * pending I/Os.
12921  **/
12922 static void
12923 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12924 {
12925         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12926                         "2827 PCI channel permanent disable for failure\n");
12927
12928         /* Block all SCSI devices' I/Os on the host */
12929         lpfc_scsi_dev_block(phba);
12930
12931         /* stop all timers */
12932         lpfc_stop_hba_timers(phba);
12933
12934         /* Clean up all driver's outstanding I/Os */
12935         lpfc_sli_flush_io_rings(phba);
12936 }
12937
12938 /**
12939  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12940  * @pdev: pointer to PCI device.
12941  * @state: the current PCI connection state.
12942  *
12943  * This routine is called from the PCI subsystem for error handling to device
12944  * with SLI-4 interface spec. This function is called by the PCI subsystem
12945  * after a PCI bus error affecting this device has been detected. When this
12946  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12947  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12948  * for the PCI subsystem to perform proper recovery as desired.
12949  *
12950  * Return codes
12951  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12952  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12953  **/
12954 static pci_ers_result_t
12955 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12956 {
12957         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12958         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12959
12960         switch (state) {
12961         case pci_channel_io_normal:
12962                 /* Non-fatal error, prepare for recovery */
12963                 lpfc_sli4_prep_dev_for_recover(phba);
12964                 return PCI_ERS_RESULT_CAN_RECOVER;
12965         case pci_channel_io_frozen:
12966                 /* Fatal error, prepare for slot reset */
12967                 lpfc_sli4_prep_dev_for_reset(phba);
12968                 return PCI_ERS_RESULT_NEED_RESET;
12969         case pci_channel_io_perm_failure:
12970                 /* Permanent failure, prepare for device down */
12971                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12972                 return PCI_ERS_RESULT_DISCONNECT;
12973         default:
12974                 /* Unknown state, prepare and request slot reset */
12975                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12976                                 "2825 Unknown PCI error state: x%x\n", state);
12977                 lpfc_sli4_prep_dev_for_reset(phba);
12978                 return PCI_ERS_RESULT_NEED_RESET;
12979         }
12980 }
12981
12982 /**
12983  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12984  * @pdev: pointer to PCI device.
12985  *
12986  * This routine is called from the PCI subsystem for error handling to device
12987  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12988  * restart the PCI card from scratch, as if from a cold-boot. During the
12989  * PCI subsystem error recovery, after the driver returns
12990  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12991  * recovery and then call this routine before calling the .resume method to
12992  * recover the device. This function will initialize the HBA device, enable
12993  * the interrupt, but it will just put the HBA to offline state without
12994  * passing any I/O traffic.
12995  *
12996  * Return codes
12997  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12998  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12999  */
13000 static pci_ers_result_t
13001 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13002 {
13003         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13004         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13005         struct lpfc_sli *psli = &phba->sli;
13006         uint32_t intr_mode;
13007
13008         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13009         if (pci_enable_device_mem(pdev)) {
13010                 printk(KERN_ERR "lpfc: Cannot re-enable "
13011                         "PCI device after reset.\n");
13012                 return PCI_ERS_RESULT_DISCONNECT;
13013         }
13014
13015         pci_restore_state(pdev);
13016
13017         /*
13018          * As the new kernel behavior of pci_restore_state() API call clears
13019          * device saved_state flag, need to save the restored state again.
13020          */
13021         pci_save_state(pdev);
13022
13023         if (pdev->is_busmaster)
13024                 pci_set_master(pdev);
13025
13026         spin_lock_irq(&phba->hbalock);
13027         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13028         spin_unlock_irq(&phba->hbalock);
13029
13030         /* Configure and enable interrupt */
13031         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13032         if (intr_mode == LPFC_INTR_ERROR) {
13033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13034                                 "2824 Cannot re-enable interrupt after "
13035                                 "slot reset.\n");
13036                 return PCI_ERS_RESULT_DISCONNECT;
13037         } else
13038                 phba->intr_mode = intr_mode;
13039
13040         /* Log the current active interrupt mode */
13041         lpfc_log_intr_mode(phba, phba->intr_mode);
13042
13043         return PCI_ERS_RESULT_RECOVERED;
13044 }
13045
13046 /**
13047  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13048  * @pdev: pointer to PCI device
13049  *
13050  * This routine is called from the PCI subsystem for error handling to device
13051  * with SLI-4 interface spec. It is called when kernel error recovery tells
13052  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13053  * error recovery. After this call, traffic can start to flow from this device
13054  * again.
13055  **/
13056 static void
13057 lpfc_io_resume_s4(struct pci_dev *pdev)
13058 {
13059         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13060         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13061
13062         /*
13063          * In case of slot reset, as function reset is performed through
13064          * mailbox command which needs DMA to be enabled, this operation
13065          * has to be moved to the io resume phase. Taking device offline
13066          * will perform the necessary cleanup.
13067          */
13068         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13069                 /* Perform device reset */
13070                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13071                 lpfc_offline(phba);
13072                 lpfc_sli_brdrestart(phba);
13073                 /* Bring the device back online */
13074                 lpfc_online(phba);
13075         }
13076 }
13077
13078 /**
13079  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13080  * @pdev: pointer to PCI device
13081  * @pid: pointer to PCI device identifier
13082  *
13083  * This routine is to be registered to the kernel's PCI subsystem. When an
13084  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13085  * at PCI device-specific information of the device and driver to see if the
13086  * driver state that it can support this kind of device. If the match is
13087  * successful, the driver core invokes this routine. This routine dispatches
13088  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13089  * do all the initialization that it needs to do to handle the HBA device
13090  * properly.
13091  *
13092  * Return code
13093  *      0 - driver can claim the device
13094  *      negative value - driver can not claim the device
13095  **/
13096 static int
13097 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13098 {
13099         int rc;
13100         struct lpfc_sli_intf intf;
13101
13102         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13103                 return -ENODEV;
13104
13105         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13106             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13107                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13108         else
13109                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13110
13111         return rc;
13112 }
13113
13114 /**
13115  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13116  * @pdev: pointer to PCI device
13117  *
13118  * This routine is to be registered to the kernel's PCI subsystem. When an
13119  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13120  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13121  * remove routine, which will perform all the necessary cleanup for the
13122  * device to be removed from the PCI subsystem properly.
13123  **/
13124 static void
13125 lpfc_pci_remove_one(struct pci_dev *pdev)
13126 {
13127         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13128         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13129
13130         switch (phba->pci_dev_grp) {
13131         case LPFC_PCI_DEV_LP:
13132                 lpfc_pci_remove_one_s3(pdev);
13133                 break;
13134         case LPFC_PCI_DEV_OC:
13135                 lpfc_pci_remove_one_s4(pdev);
13136                 break;
13137         default:
13138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13139                                 "1424 Invalid PCI device group: 0x%x\n",
13140                                 phba->pci_dev_grp);
13141                 break;
13142         }
13143         return;
13144 }
13145
13146 /**
13147  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13148  * @pdev: pointer to PCI device
13149  * @msg: power management message
13150  *
13151  * This routine is to be registered to the kernel's PCI subsystem to support
13152  * system Power Management (PM). When PM invokes this method, it dispatches
13153  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13154  * suspend the device.
13155  *
13156  * Return code
13157  *      0 - driver suspended the device
13158  *      Error otherwise
13159  **/
13160 static int
13161 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13162 {
13163         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13164         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13165         int rc = -ENODEV;
13166
13167         switch (phba->pci_dev_grp) {
13168         case LPFC_PCI_DEV_LP:
13169                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13170                 break;
13171         case LPFC_PCI_DEV_OC:
13172                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13173                 break;
13174         default:
13175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13176                                 "1425 Invalid PCI device group: 0x%x\n",
13177                                 phba->pci_dev_grp);
13178                 break;
13179         }
13180         return rc;
13181 }
13182
13183 /**
13184  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13185  * @pdev: pointer to PCI device
13186  *
13187  * This routine is to be registered to the kernel's PCI subsystem to support
13188  * system Power Management (PM). When PM invokes this method, it dispatches
13189  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13190  * resume the device.
13191  *
13192  * Return code
13193  *      0 - driver suspended the device
13194  *      Error otherwise
13195  **/
13196 static int
13197 lpfc_pci_resume_one(struct pci_dev *pdev)
13198 {
13199         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13200         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13201         int rc = -ENODEV;
13202
13203         switch (phba->pci_dev_grp) {
13204         case LPFC_PCI_DEV_LP:
13205                 rc = lpfc_pci_resume_one_s3(pdev);
13206                 break;
13207         case LPFC_PCI_DEV_OC:
13208                 rc = lpfc_pci_resume_one_s4(pdev);
13209                 break;
13210         default:
13211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13212                                 "1426 Invalid PCI device group: 0x%x\n",
13213                                 phba->pci_dev_grp);
13214                 break;
13215         }
13216         return rc;
13217 }
13218
13219 /**
13220  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13221  * @pdev: pointer to PCI device.
13222  * @state: the current PCI connection state.
13223  *
13224  * This routine is registered to the PCI subsystem for error handling. This
13225  * function is called by the PCI subsystem after a PCI bus error affecting
13226  * this device has been detected. When this routine is invoked, it dispatches
13227  * the action to the proper SLI-3 or SLI-4 device error detected handling
13228  * routine, which will perform the proper error detected operation.
13229  *
13230  * Return codes
13231  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13232  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13233  **/
13234 static pci_ers_result_t
13235 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13236 {
13237         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13238         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13239         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13240
13241         switch (phba->pci_dev_grp) {
13242         case LPFC_PCI_DEV_LP:
13243                 rc = lpfc_io_error_detected_s3(pdev, state);
13244                 break;
13245         case LPFC_PCI_DEV_OC:
13246                 rc = lpfc_io_error_detected_s4(pdev, state);
13247                 break;
13248         default:
13249                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13250                                 "1427 Invalid PCI device group: 0x%x\n",
13251                                 phba->pci_dev_grp);
13252                 break;
13253         }
13254         return rc;
13255 }
13256
13257 /**
13258  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13259  * @pdev: pointer to PCI device.
13260  *
13261  * This routine is registered to the PCI subsystem for error handling. This
13262  * function is called after PCI bus has been reset to restart the PCI card
13263  * from scratch, as if from a cold-boot. When this routine is invoked, it
13264  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13265  * routine, which will perform the proper device reset.
13266  *
13267  * Return codes
13268  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13269  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13270  **/
13271 static pci_ers_result_t
13272 lpfc_io_slot_reset(struct pci_dev *pdev)
13273 {
13274         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13275         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13276         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13277
13278         switch (phba->pci_dev_grp) {
13279         case LPFC_PCI_DEV_LP:
13280                 rc = lpfc_io_slot_reset_s3(pdev);
13281                 break;
13282         case LPFC_PCI_DEV_OC:
13283                 rc = lpfc_io_slot_reset_s4(pdev);
13284                 break;
13285         default:
13286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13287                                 "1428 Invalid PCI device group: 0x%x\n",
13288                                 phba->pci_dev_grp);
13289                 break;
13290         }
13291         return rc;
13292 }
13293
13294 /**
13295  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13296  * @pdev: pointer to PCI device
13297  *
13298  * This routine is registered to the PCI subsystem for error handling. It
13299  * is called when kernel error recovery tells the lpfc driver that it is
13300  * OK to resume normal PCI operation after PCI bus error recovery. When
13301  * this routine is invoked, it dispatches the action to the proper SLI-3
13302  * or SLI-4 device io_resume routine, which will resume the device operation.
13303  **/
13304 static void
13305 lpfc_io_resume(struct pci_dev *pdev)
13306 {
13307         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13308         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13309
13310         switch (phba->pci_dev_grp) {
13311         case LPFC_PCI_DEV_LP:
13312                 lpfc_io_resume_s3(pdev);
13313                 break;
13314         case LPFC_PCI_DEV_OC:
13315                 lpfc_io_resume_s4(pdev);
13316                 break;
13317         default:
13318                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13319                                 "1429 Invalid PCI device group: 0x%x\n",
13320                                 phba->pci_dev_grp);
13321                 break;
13322         }
13323         return;
13324 }
13325
13326 /**
13327  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13328  * @phba: pointer to lpfc hba data structure.
13329  *
13330  * This routine checks to see if OAS is supported for this adapter. If
13331  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13332  * the enable oas flag is cleared and the pool created for OAS device data
13333  * is destroyed.
13334  *
13335  **/
13336 static void
13337 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13338 {
13339
13340         if (!phba->cfg_EnableXLane)
13341                 return;
13342
13343         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13344                 phba->cfg_fof = 1;
13345         } else {
13346                 phba->cfg_fof = 0;
13347                 if (phba->device_data_mem_pool)
13348                         mempool_destroy(phba->device_data_mem_pool);
13349                 phba->device_data_mem_pool = NULL;
13350         }
13351
13352         return;
13353 }
13354
13355 /**
13356  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13357  * @phba: pointer to lpfc hba data structure.
13358  *
13359  * This routine checks to see if RAS is supported by the adapter. Check the
13360  * function through which RAS support enablement is to be done.
13361  **/
13362 void
13363 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13364 {
13365         switch (phba->pcidev->device) {
13366         case PCI_DEVICE_ID_LANCER_G6_FC:
13367         case PCI_DEVICE_ID_LANCER_G7_FC:
13368                 phba->ras_fwlog.ras_hwsupport = true;
13369                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13370                     phba->cfg_ras_fwlog_buffsize)
13371                         phba->ras_fwlog.ras_enabled = true;
13372                 else
13373                         phba->ras_fwlog.ras_enabled = false;
13374                 break;
13375         default:
13376                 phba->ras_fwlog.ras_hwsupport = false;
13377         }
13378 }
13379
13380
13381 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13382
13383 static const struct pci_error_handlers lpfc_err_handler = {
13384         .error_detected = lpfc_io_error_detected,
13385         .slot_reset = lpfc_io_slot_reset,
13386         .resume = lpfc_io_resume,
13387 };
13388
13389 static struct pci_driver lpfc_driver = {
13390         .name           = LPFC_DRIVER_NAME,
13391         .id_table       = lpfc_id_table,
13392         .probe          = lpfc_pci_probe_one,
13393         .remove         = lpfc_pci_remove_one,
13394         .shutdown       = lpfc_pci_remove_one,
13395         .suspend        = lpfc_pci_suspend_one,
13396         .resume         = lpfc_pci_resume_one,
13397         .err_handler    = &lpfc_err_handler,
13398 };
13399
13400 static const struct file_operations lpfc_mgmt_fop = {
13401         .owner = THIS_MODULE,
13402 };
13403
13404 static struct miscdevice lpfc_mgmt_dev = {
13405         .minor = MISC_DYNAMIC_MINOR,
13406         .name = "lpfcmgmt",
13407         .fops = &lpfc_mgmt_fop,
13408 };
13409
13410 /**
13411  * lpfc_init - lpfc module initialization routine
13412  *
13413  * This routine is to be invoked when the lpfc module is loaded into the
13414  * kernel. The special kernel macro module_init() is used to indicate the
13415  * role of this routine to the kernel as lpfc module entry point.
13416  *
13417  * Return codes
13418  *   0 - successful
13419  *   -ENOMEM - FC attach transport failed
13420  *   all others - failed
13421  */
13422 static int __init
13423 lpfc_init(void)
13424 {
13425         int error = 0;
13426
13427         printk(LPFC_MODULE_DESC "\n");
13428         printk(LPFC_COPYRIGHT "\n");
13429
13430         error = misc_register(&lpfc_mgmt_dev);
13431         if (error)
13432                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13433                         "misc_register returned with status %d", error);
13434
13435         lpfc_transport_functions.vport_create = lpfc_vport_create;
13436         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13437         lpfc_transport_template =
13438                                 fc_attach_transport(&lpfc_transport_functions);
13439         if (lpfc_transport_template == NULL)
13440                 return -ENOMEM;
13441         lpfc_vport_transport_template =
13442                 fc_attach_transport(&lpfc_vport_transport_functions);
13443         if (lpfc_vport_transport_template == NULL) {
13444                 fc_release_transport(lpfc_transport_template);
13445                 return -ENOMEM;
13446         }
13447         lpfc_nvme_cmd_template();
13448         lpfc_nvmet_cmd_template();
13449
13450         /* Initialize in case vector mapping is needed */
13451         lpfc_present_cpu = num_present_cpus();
13452
13453         error = pci_register_driver(&lpfc_driver);
13454         if (error) {
13455                 fc_release_transport(lpfc_transport_template);
13456                 fc_release_transport(lpfc_vport_transport_template);
13457         }
13458
13459         return error;
13460 }
13461
13462 /**
13463  * lpfc_exit - lpfc module removal routine
13464  *
13465  * This routine is invoked when the lpfc module is removed from the kernel.
13466  * The special kernel macro module_exit() is used to indicate the role of
13467  * this routine to the kernel as lpfc module exit point.
13468  */
13469 static void __exit
13470 lpfc_exit(void)
13471 {
13472         misc_deregister(&lpfc_mgmt_dev);
13473         pci_unregister_driver(&lpfc_driver);
13474         fc_release_transport(lpfc_transport_template);
13475         fc_release_transport(lpfc_vport_transport_template);
13476         idr_destroy(&lpfc_hba_index);
13477 }
13478
13479 module_init(lpfc_init);
13480 module_exit(lpfc_exit);
13481 MODULE_LICENSE("GPL");
13482 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
13483 MODULE_AUTHOR("Broadcom");
13484 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);