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) 2017-2018 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/bitops.h>
  41
  42 #include <scsi/scsi.h>
  43 #include <scsi/scsi_device.h>
  44 #include <scsi/scsi_host.h>
  45 #include <scsi/scsi_transport_fc.h>
  46 #include <scsi/scsi_tcq.h>
  47 #include <scsi/fc/fc_fs.h>
  48
  49 #include <linux/nvme-fc-driver.h>
  50
  51 #include "lpfc_hw4.h"
  52 #include "lpfc_hw.h"
  53 #include "lpfc_sli.h"
  54 #include "lpfc_sli4.h"
  55 #include "lpfc_nl.h"
  56 #include "lpfc_disc.h"
  57 #include "lpfc.h"
  58 #include "lpfc_scsi.h"
  59 #include "lpfc_nvme.h"
  60 #include "lpfc_nvmet.h"
  61 #include "lpfc_logmsg.h"
  62 #include "lpfc_crtn.h"
  63 #include "lpfc_vport.h"
  64 #include "lpfc_version.h"
  65 #include "lpfc_ids.h"
  66
  67 char *_dump_buf_data;
  68 unsigned long _dump_buf_data_order;
  69 char *_dump_buf_dif;
  70 unsigned long _dump_buf_dif_order;
  71 spinlock_t _dump_buf_lock;
  72
  73 /* Used when mapping IRQ vectors in a driver centric manner */
  74 uint16_t *lpfc_used_cpu;
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  96
  97 static struct scsi_transport_template *lpfc_transport_template = NULL;
  98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  99 static DEFINE_IDR(lpfc_hba_index);
 100 #define LPFC_NVMET_BUF_POST 254
 101
 102 /**
 103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 104  * @phba: pointer to lpfc hba data structure.
 105  *
 106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 107  * mailbox command. It retrieves the revision information from the HBA and
 108  * collects the Vital Product Data (VPD) about the HBA for preparing the
 109  * configuration of the HBA.
 110  *
 111  * Return codes:
 112  *   0 - success.
 113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 114  *   Any other value - indicates an error.
 115  **/
 116 int
 117 lpfc_config_port_prep(struct lpfc_hba *phba)
 118 {
 119         lpfc_vpd_t *vp = &phba->vpd;
 120         int i = 0, rc;
 121         LPFC_MBOXQ_t *pmb;
 122         MAILBOX_t *mb;
 123         char *lpfc_vpd_data = NULL;
 124         uint16_t offset = 0;
 125         static char licensed[56] =
 126                     "key unlock for use with gnu public licensed code only\0";
 127         static int init_key = 1;
 128
 129         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 130         if (!pmb) {
 131                 phba->link_state = LPFC_HBA_ERROR;
 132                 return -ENOMEM;
 133         }
 134
 135         mb = &pmb->u.mb;
 136         phba->link_state = LPFC_INIT_MBX_CMDS;
 137
 138         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 139                 if (init_key) {
 140                         uint32_t *ptext = (uint32_t *) licensed;
 141
 142                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 143                                 *ptext = cpu_to_be32(*ptext);
 144                         init_key = 0;
 145                 }
 146
 147                 lpfc_read_nv(phba, pmb);
 148                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 149                         sizeof (mb->un.varRDnvp.rsvd3));
 150                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 151                          sizeof (licensed));
 152
 153                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154
 155                 if (rc != MBX_SUCCESS) {
 156                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 157                                         "0324 Config Port initialization "
 158                                         "error, mbxCmd x%x READ_NVPARM, "
 159                                         "mbxStatus x%x\n",
 160                                         mb->mbxCommand, mb->mbxStatus);
 161                         mempool_free(pmb, phba->mbox_mem_pool);
 162                         return -ERESTART;
 163                 }
 164                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 165                        sizeof(phba->wwnn));
 166                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 167                        sizeof(phba->wwpn));
 168         }
 169
 170         /*
 171          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 172          * which was already set in lpfc_get_cfgparam()
 173          */
 174         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 175
 176         /* Setup and issue mailbox READ REV command */
 177         lpfc_read_rev(phba, pmb);
 178         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 179         if (rc != MBX_SUCCESS) {
 180                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 181                                 "0439 Adapter failed to init, mbxCmd x%x "
 182                                 "READ_REV, mbxStatus x%x\n",
 183                                 mb->mbxCommand, mb->mbxStatus);
 184                 mempool_free( pmb, phba->mbox_mem_pool);
 185                 return -ERESTART;
 186         }
 187
 188
 189         /*
 190          * The value of rr must be 1 since the driver set the cv field to 1.
 191          * This setting requires the FW to set all revision fields.
 192          */
 193         if (mb->un.varRdRev.rr == 0) {
 194                 vp->rev.rBit = 0;
 195                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 196                                 "0440 Adapter failed to init, READ_REV has "
 197                                 "missing revision information.\n");
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -ERESTART;
 200         }
 201
 202         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 203                 mempool_free(pmb, phba->mbox_mem_pool);
 204                 return -EINVAL;
 205         }
 206
 207         /* Save information as VPD data */
 208         vp->rev.rBit = 1;
 209         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 210         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 211         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 212         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 213         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 214         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 215         vp->rev.smRev = mb->un.varRdRev.smRev;
 216         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 217         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 218         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 219         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 220         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 221         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 222         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 223         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 224
 225         /* If the sli feature level is less then 9, we must
 226          * tear down all RPIs and VPIs on link down if NPIV
 227          * is enabled.
 228          */
 229         if (vp->rev.feaLevelHigh < 9)
 230                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 231
 232         if (lpfc_is_LC_HBA(phba->pcidev->device))
 233                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 234                                                 sizeof (phba->RandomData));
 235
 236         /* Get adapter VPD information */
 237         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 238         if (!lpfc_vpd_data)
 239                 goto out_free_mbox;
 240         do {
 241                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 242                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 243
 244                 if (rc != MBX_SUCCESS) {
 245                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 246                                         "0441 VPD not present on adapter, "
 247                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 248                                         mb->mbxCommand, mb->mbxStatus);
 249                         mb->un.varDmp.word_cnt = 0;
 250                 }
 251                 /* dump mem may return a zero when finished or we got a
 252                  * mailbox error, either way we are done.
 253                  */
 254                 if (mb->un.varDmp.word_cnt == 0)
 255                         break;
 256                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 257                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 258                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 259                                       lpfc_vpd_data + offset,
 260                                       mb->un.varDmp.word_cnt);
 261                 offset += mb->un.varDmp.word_cnt;
 262         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 263         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 264
 265         kfree(lpfc_vpd_data);
 266 out_free_mbox:
 267         mempool_free(pmb, phba->mbox_mem_pool);
 268         return 0;
 269 }
 270
 271 /**
 272  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 273  * @phba: pointer to lpfc hba data structure.
 274  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 275  *
 276  * This is the completion handler for driver's configuring asynchronous event
 277  * mailbox command to the device. If the mailbox command returns successfully,
 278  * it will set internal async event support flag to 1; otherwise, it will
 279  * set internal async event support flag to 0.
 280  **/
 281 static void
 282 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 283 {
 284         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 285                 phba->temp_sensor_support = 1;
 286         else
 287                 phba->temp_sensor_support = 0;
 288         mempool_free(pmboxq, phba->mbox_mem_pool);
 289         return;
 290 }
 291
 292 /**
 293  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 294  * @phba: pointer to lpfc hba data structure.
 295  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 296  *
 297  * This is the completion handler for dump mailbox command for getting
 298  * wake up parameters. When this command complete, the response contain
 299  * Option rom version of the HBA. This function translate the version number
 300  * into a human readable string and store it in OptionROMVersion.
 301  **/
 302 static void
 303 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 304 {
 305         struct prog_id *prg;
 306         uint32_t prog_id_word;
 307         char dist = ' ';
 308         /* character array used for decoding dist type. */
 309         char dist_char[] = "nabx";
 310
 311         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 312                 mempool_free(pmboxq, phba->mbox_mem_pool);
 313                 return;
 314         }
 315
 316         prg = (struct prog_id *) &prog_id_word;
 317
 318         /* word 7 contain option rom version */
 319         prog_id_word = pmboxq->u.mb.un.varWords[7];
 320
 321         /* Decode the Option rom version word to a readable string */
 322         if (prg->dist < 4)
 323                 dist = dist_char[prg->dist];
 324
 325         if ((prg->dist == 3) && (prg->num == 0))
 326                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 327                         prg->ver, prg->rev, prg->lev);
 328         else
 329                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 330                         prg->ver, prg->rev, prg->lev,
 331                         dist, prg->num);
 332         mempool_free(pmboxq, phba->mbox_mem_pool);
 333         return;
 334 }
 335
 336 /**
 337  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 338  *      cfg_soft_wwnn, cfg_soft_wwpn
 339  * @vport: pointer to lpfc vport data structure.
 340  *
 341  *
 342  * Return codes
 343  *   None.
 344  **/
 345 void
 346 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 347 {
 348         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 349         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 350
 351         /* If the soft name exists then update it using the service params */
 352         if (vport->phba->cfg_soft_wwnn)
 353                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 354                            vport->fc_sparam.nodeName.u.wwn);
 355         if (vport->phba->cfg_soft_wwpn)
 356                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 357                            vport->fc_sparam.portName.u.wwn);
 358
 359         /*
 360          * If the name is empty or there exists a soft name
 361          * then copy the service params name, otherwise use the fc name
 362          */
 363         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 364                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 365                         sizeof(struct lpfc_name));
 366         else
 367                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 368                         sizeof(struct lpfc_name));
 369
 370         /*
 371          * If the port name has changed, then set the Param changes flag
 372          * to unreg the login
 373          */
 374         if (vport->fc_portname.u.wwn[0] != 0 &&
 375                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 376                         sizeof(struct lpfc_name)))
 377                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 378
 379         if (vport->fc_portname.u.wwn[0] == 0 ||
 380             vport->phba->cfg_soft_wwpn ||
 381             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 382             vport->vport_flag & FAWWPN_SET) {
 383                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 384                         sizeof(struct lpfc_name));
 385                 vport->vport_flag &= ~FAWWPN_SET;
 386                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 387                         vport->vport_flag |= FAWWPN_SET;
 388         }
 389         else
 390                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 391                         sizeof(struct lpfc_name));
 392 }
 393
 394 /**
 395  * lpfc_config_port_post - Perform lpfc initialization after config port
 396  * @phba: pointer to lpfc hba data structure.
 397  *
 398  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 399  * command call. It performs all internal resource and state setups on the
 400  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 401  * ELS ring timers, etc.
 402  *
 403  * Return codes
 404  *   0 - success.
 405  *   Any other value - error.
 406  **/
 407 int
 408 lpfc_config_port_post(struct lpfc_hba *phba)
 409 {
 410         struct lpfc_vport *vport = phba->pport;
 411         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 412         LPFC_MBOXQ_t *pmb;
 413         MAILBOX_t *mb;
 414         struct lpfc_dmabuf *mp;
 415         struct lpfc_sli *psli = &phba->sli;
 416         uint32_t status, timeout;
 417         int i, j;
 418         int rc;
 419
 420         spin_lock_irq(&phba->hbalock);
 421         /*
 422          * If the Config port completed correctly the HBA is not
 423          * over heated any more.
 424          */
 425         if (phba->over_temp_state == HBA_OVER_TEMP)
 426                 phba->over_temp_state = HBA_NORMAL_TEMP;
 427         spin_unlock_irq(&phba->hbalock);
 428
 429         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 430         if (!pmb) {
 431                 phba->link_state = LPFC_HBA_ERROR;
 432                 return -ENOMEM;
 433         }
 434         mb = &pmb->u.mb;
 435
 436         /* Get login parameters for NID.  */
 437         rc = lpfc_read_sparam(phba, pmb, 0);
 438         if (rc) {
 439                 mempool_free(pmb, phba->mbox_mem_pool);
 440                 return -ENOMEM;
 441         }
 442
 443         pmb->vport = vport;
 444         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 446                                 "0448 Adapter failed init, mbxCmd x%x "
 447                                 "READ_SPARM mbxStatus x%x\n",
 448                                 mb->mbxCommand, mb->mbxStatus);
 449                 phba->link_state = LPFC_HBA_ERROR;
 450                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 451                 mempool_free(pmb, phba->mbox_mem_pool);
 452                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 453                 kfree(mp);
 454                 return -EIO;
 455         }
 456
 457         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 458
 459         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 460         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 461         kfree(mp);
 462         pmb->ctx_buf = NULL;
 463         lpfc_update_vport_wwn(vport);
 464
 465         /* Update the fc_host data structures with new wwn. */
 466         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 467         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 468         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 469
 470         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 471         /* This should be consolidated into parse_vpd ? - mr */
 472         if (phba->SerialNumber[0] == 0) {
 473                 uint8_t *outptr;
 474
 475                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 476                 for (i = 0; i < 12; i++) {
 477                         status = *outptr++;
 478                         j = ((status & 0xf0) >> 4);
 479                         if (j <= 9)
 480                                 phba->SerialNumber[i] =
 481                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 482                         else
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 485                         i++;
 486                         j = (status & 0xf);
 487                         if (j <= 9)
 488                                 phba->SerialNumber[i] =
 489                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 490                         else
 491                                 phba->SerialNumber[i] =
 492                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 493                 }
 494         }
 495
 496         lpfc_read_config(phba, pmb);
 497         pmb->vport = vport;
 498         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 499                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 500                                 "0453 Adapter failed to init, mbxCmd x%x "
 501                                 "READ_CONFIG, mbxStatus x%x\n",
 502                                 mb->mbxCommand, mb->mbxStatus);
 503                 phba->link_state = LPFC_HBA_ERROR;
 504                 mempool_free( pmb, phba->mbox_mem_pool);
 505                 return -EIO;
 506         }
 507
 508         /* Check if the port is disabled */
 509         lpfc_sli_read_link_ste(phba);
 510
 511         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 512         i = (mb->un.varRdConfig.max_xri + 1);
 513         if (phba->cfg_hba_queue_depth > i) {
 514                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 515                                 "3359 HBA queue depth changed from %d to %d\n",
 516                                 phba->cfg_hba_queue_depth, i);
 517                 phba->cfg_hba_queue_depth = i;
 518         }
 519
 520         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 521         i = (mb->un.varRdConfig.max_xri >> 3);
 522         if (phba->pport->cfg_lun_queue_depth > i) {
 523                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 524                                 "3360 LUN queue depth changed from %d to %d\n",
 525                                 phba->pport->cfg_lun_queue_depth, i);
 526                 phba->pport->cfg_lun_queue_depth = i;
 527         }
 528
 529         phba->lmt = mb->un.varRdConfig.lmt;
 530
 531         /* Get the default values for Model Name and Description */
 532         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 533
 534         phba->link_state = LPFC_LINK_DOWN;
 535
 536         /* Only process IOCBs on ELS ring till hba_state is READY */
 537         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 538                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 539         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 540                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 541
 542         /* Post receive buffers for desired rings */
 543         if (phba->sli_rev != 3)
 544                 lpfc_post_rcv_buf(phba);
 545
 546         /*
 547          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 548          */
 549         if (phba->intr_type == MSIX) {
 550                 rc = lpfc_config_msi(phba, pmb);
 551                 if (rc) {
 552                         mempool_free(pmb, phba->mbox_mem_pool);
 553                         return -EIO;
 554                 }
 555                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 556                 if (rc != MBX_SUCCESS) {
 557                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 558                                         "0352 Config MSI mailbox command "
 559                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 560                                         pmb->u.mb.mbxCommand,
 561                                         pmb->u.mb.mbxStatus);
 562                         mempool_free(pmb, phba->mbox_mem_pool);
 563                         return -EIO;
 564                 }
 565         }
 566
 567         spin_lock_irq(&phba->hbalock);
 568         /* Initialize ERATT handling flag */
 569         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 570
 571         /* Enable appropriate host interrupts */
 572         if (lpfc_readl(phba->HCregaddr, &status)) {
 573                 spin_unlock_irq(&phba->hbalock);
 574                 return -EIO;
 575         }
 576         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 577         if (psli->num_rings > 0)
 578                 status |= HC_R0INT_ENA;
 579         if (psli->num_rings > 1)
 580                 status |= HC_R1INT_ENA;
 581         if (psli->num_rings > 2)
 582                 status |= HC_R2INT_ENA;
 583         if (psli->num_rings > 3)
 584                 status |= HC_R3INT_ENA;
 585
 586         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 587             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 588                 status &= ~(HC_R0INT_ENA);
 589
 590         writel(status, phba->HCregaddr);
 591         readl(phba->HCregaddr); /* flush */
 592         spin_unlock_irq(&phba->hbalock);
 593
 594         /* Set up ring-0 (ELS) timer */
 595         timeout = phba->fc_ratov * 2;
 596         mod_timer(&vport->els_tmofunc,
 597                   jiffies + msecs_to_jiffies(1000 * timeout));
 598         /* Set up heart beat (HB) timer */
 599         mod_timer(&phba->hb_tmofunc,
 600                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 601         phba->hb_outstanding = 0;
 602         phba->last_completion_time = jiffies;
 603         /* Set up error attention (ERATT) polling timer */
 604         mod_timer(&phba->eratt_poll,
 605                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 606
 607         if (phba->hba_flag & LINK_DISABLED) {
 608                 lpfc_printf_log(phba,
 609                         KERN_ERR, LOG_INIT,
 610                         "2598 Adapter Link is disabled.\n");
 611                 lpfc_down_link(phba, pmb);
 612                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 613                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 614                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 615                         lpfc_printf_log(phba,
 616                         KERN_ERR, LOG_INIT,
 617                         "2599 Adapter failed to issue DOWN_LINK"
 618                         " mbox command rc 0x%x\n", rc);
 619
 620                         mempool_free(pmb, phba->mbox_mem_pool);
 621                         return -EIO;
 622                 }
 623         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 624                 mempool_free(pmb, phba->mbox_mem_pool);
 625                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 626                 if (rc)
 627                         return rc;
 628         }
 629         /* MBOX buffer will be freed in mbox compl */
 630         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 631         if (!pmb) {
 632                 phba->link_state = LPFC_HBA_ERROR;
 633                 return -ENOMEM;
 634         }
 635
 636         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 637         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 638         pmb->vport = phba->pport;
 639         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 640
 641         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 642                 lpfc_printf_log(phba,
 643                                 KERN_ERR,
 644                                 LOG_INIT,
 645                                 "0456 Adapter failed to issue "
 646                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 647                                 rc);
 648                 mempool_free(pmb, phba->mbox_mem_pool);
 649         }
 650
 651         /* Get Option rom version */
 652         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 653         if (!pmb) {
 654                 phba->link_state = LPFC_HBA_ERROR;
 655                 return -ENOMEM;
 656         }
 657
 658         lpfc_dump_wakeup_param(phba, pmb);
 659         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 660         pmb->vport = phba->pport;
 661         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 662
 663         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 665                                 "to get Option ROM version status x%x\n", rc);
 666                 mempool_free(pmb, phba->mbox_mem_pool);
 667         }
 668
 669         return 0;
 670 }
 671
 672 /**
 673  * lpfc_hba_init_link - Initialize the FC link
 674  * @phba: pointer to lpfc hba data structure.
 675  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 676  *
 677  * This routine will issue the INIT_LINK mailbox command call.
 678  * It is available to other drivers through the lpfc_hba data
 679  * structure for use as a delayed link up mechanism with the
 680  * module parameter lpfc_suppress_link_up.
 681  *
 682  * Return code
 683  *              0 - success
 684  *              Any other value - error
 685  **/
 686 static int
 687 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 688 {
 689         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 690 }
 691
 692 /**
 693  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 694  * @phba: pointer to lpfc hba data structure.
 695  * @fc_topology: desired fc topology.
 696  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 697  *
 698  * This routine will issue the INIT_LINK mailbox command call.
 699  * It is available to other drivers through the lpfc_hba data
 700  * structure for use as a delayed link up mechanism with the
 701  * module parameter lpfc_suppress_link_up.
 702  *
 703  * Return code
 704  *              0 - success
 705  *              Any other value - error
 706  **/
 707 int
 708 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 709                                uint32_t flag)
 710 {
 711         struct lpfc_vport *vport = phba->pport;
 712         LPFC_MBOXQ_t *pmb;
 713         MAILBOX_t *mb;
 714         int rc;
 715
 716         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 717         if (!pmb) {
 718                 phba->link_state = LPFC_HBA_ERROR;
 719                 return -ENOMEM;
 720         }
 721         mb = &pmb->u.mb;
 722         pmb->vport = vport;
 723
 724         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 726              !(phba->lmt & LMT_1Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 728              !(phba->lmt & LMT_2Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 730              !(phba->lmt & LMT_4Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 732              !(phba->lmt & LMT_8Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 734              !(phba->lmt & LMT_10Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 736              !(phba->lmt & LMT_16Gb)) ||
 737             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 738              !(phba->lmt & LMT_32Gb)) ||
 739             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 740              !(phba->lmt & LMT_64Gb))) {
 741                 /* Reset link speed to auto */
 742                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 743                         "1302 Invalid speed for this board:%d "
 744                         "Reset link speed to auto.\n",
 745                         phba->cfg_link_speed);
 746                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 747         }
 748         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 749         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 750         if (phba->sli_rev < LPFC_SLI_REV4)
 751                 lpfc_set_loopback_flag(phba);
 752         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 753         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 754                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 755                         "0498 Adapter failed to init, mbxCmd x%x "
 756                         "INIT_LINK, mbxStatus x%x\n",
 757                         mb->mbxCommand, mb->mbxStatus);
 758                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 759                         /* Clear all interrupt enable conditions */
 760                         writel(0, phba->HCregaddr);
 761                         readl(phba->HCregaddr); /* flush */
 762                         /* Clear all pending interrupts */
 763                         writel(0xffffffff, phba->HAregaddr);
 764                         readl(phba->HAregaddr); /* flush */
 765                 }
 766                 phba->link_state = LPFC_HBA_ERROR;
 767                 if (rc != MBX_BUSY || flag == MBX_POLL)
 768                         mempool_free(pmb, phba->mbox_mem_pool);
 769                 return -EIO;
 770         }
 771         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 772         if (flag == MBX_POLL)
 773                 mempool_free(pmb, phba->mbox_mem_pool);
 774
 775         return 0;
 776 }
 777
 778 /**
 779  * lpfc_hba_down_link - this routine downs the FC link
 780  * @phba: pointer to lpfc hba data structure.
 781  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 782  *
 783  * This routine will issue the DOWN_LINK mailbox command call.
 784  * It is available to other drivers through the lpfc_hba data
 785  * structure for use to stop the link.
 786  *
 787  * Return code
 788  *              0 - success
 789  *              Any other value - error
 790  **/
 791 static int
 792 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 793 {
 794         LPFC_MBOXQ_t *pmb;
 795         int rc;
 796
 797         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 798         if (!pmb) {
 799                 phba->link_state = LPFC_HBA_ERROR;
 800                 return -ENOMEM;
 801         }
 802
 803         lpfc_printf_log(phba,
 804                 KERN_ERR, LOG_INIT,
 805                 "0491 Adapter Link is disabled.\n");
 806         lpfc_down_link(phba, pmb);
 807         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 808         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 809         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 810                 lpfc_printf_log(phba,
 811                 KERN_ERR, LOG_INIT,
 812                 "2522 Adapter failed to issue DOWN_LINK"
 813                 " mbox command rc 0x%x\n", rc);
 814
 815                 mempool_free(pmb, phba->mbox_mem_pool);
 816                 return -EIO;
 817         }
 818         if (flag == MBX_POLL)
 819                 mempool_free(pmb, phba->mbox_mem_pool);
 820
 821         return 0;
 822 }
 823
 824 /**
 825  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 826  * @phba: pointer to lpfc HBA data structure.
 827  *
 828  * This routine will do LPFC uninitialization before the HBA is reset when
 829  * bringing down the SLI Layer.
 830  *
 831  * Return codes
 832  *   0 - success.
 833  *   Any other value - error.
 834  **/
 835 int
 836 lpfc_hba_down_prep(struct lpfc_hba *phba)
 837 {
 838         struct lpfc_vport **vports;
 839         int i;
 840
 841         if (phba->sli_rev <= LPFC_SLI_REV3) {
 842                 /* Disable interrupts */
 843                 writel(0, phba->HCregaddr);
 844                 readl(phba->HCregaddr); /* flush */
 845         }
 846
 847         if (phba->pport->load_flag & FC_UNLOADING)
 848                 lpfc_cleanup_discovery_resources(phba->pport);
 849         else {
 850                 vports = lpfc_create_vport_work_array(phba);
 851                 if (vports != NULL)
 852                         for (i = 0; i <= phba->max_vports &&
 853                                 vports[i] != NULL; i++)
 854                                 lpfc_cleanup_discovery_resources(vports[i]);
 855                 lpfc_destroy_vport_work_array(phba, vports);
 856         }
 857         return 0;
 858 }
 859
 860 /**
 861  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 862  * rspiocb which got deferred
 863  *
 864  * @phba: pointer to lpfc HBA data structure.
 865  *
 866  * This routine will cleanup completed slow path events after HBA is reset
 867  * when bringing down the SLI Layer.
 868  *
 869  *
 870  * Return codes
 871  *   void.
 872  **/
 873 static void
 874 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 875 {
 876         struct lpfc_iocbq *rspiocbq;
 877         struct hbq_dmabuf *dmabuf;
 878         struct lpfc_cq_event *cq_event;
 879
 880         spin_lock_irq(&phba->hbalock);
 881         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 882         spin_unlock_irq(&phba->hbalock);
 883
 884         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 885                 /* Get the response iocb from the head of work queue */
 886                 spin_lock_irq(&phba->hbalock);
 887                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 888                                  cq_event, struct lpfc_cq_event, list);
 889                 spin_unlock_irq(&phba->hbalock);
 890
 891                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 892                 case CQE_CODE_COMPL_WQE:
 893                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 894                                                  cq_event);
 895                         lpfc_sli_release_iocbq(phba, rspiocbq);
 896                         break;
 897                 case CQE_CODE_RECEIVE:
 898                 case CQE_CODE_RECEIVE_V1:
 899                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 900                                               cq_event);
 901                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 902                 }
 903         }
 904 }
 905
 906 /**
 907  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 908  * @phba: pointer to lpfc HBA data structure.
 909  *
 910  * This routine will cleanup posted ELS buffers after the HBA is reset
 911  * when bringing down the SLI Layer.
 912  *
 913  *
 914  * Return codes
 915  *   void.
 916  **/
 917 static void
 918 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 919 {
 920         struct lpfc_sli *psli = &phba->sli;
 921         struct lpfc_sli_ring *pring;
 922         struct lpfc_dmabuf *mp, *next_mp;
 923         LIST_HEAD(buflist);
 924         int count;
 925
 926         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 927                 lpfc_sli_hbqbuf_free_all(phba);
 928         else {
 929                 /* Cleanup preposted buffers on the ELS ring */
 930                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 931                 spin_lock_irq(&phba->hbalock);
 932                 list_splice_init(&pring->postbufq, &buflist);
 933                 spin_unlock_irq(&phba->hbalock);
 934
 935                 count = 0;
 936                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 937                         list_del(&mp->list);
 938                         count++;
 939                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 940                         kfree(mp);
 941                 }
 942
 943                 spin_lock_irq(&phba->hbalock);
 944                 pring->postbufq_cnt -= count;
 945                 spin_unlock_irq(&phba->hbalock);
 946         }
 947 }
 948
 949 /**
 950  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 951  * @phba: pointer to lpfc HBA data structure.
 952  *
 953  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 954  * down the SLI Layer.
 955  *
 956  * Return codes
 957  *   void
 958  **/
 959 static void
 960 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 961 {
 962         struct lpfc_sli *psli = &phba->sli;
 963         struct lpfc_queue *qp = NULL;
 964         struct lpfc_sli_ring *pring;
 965         LIST_HEAD(completions);
 966         int i;
 967         struct lpfc_iocbq *piocb, *next_iocb;
 968
 969         if (phba->sli_rev != LPFC_SLI_REV4) {
 970                 for (i = 0; i < psli->num_rings; i++) {
 971                         pring = &psli->sli3_ring[i];
 972                         spin_lock_irq(&phba->hbalock);
 973                         /* At this point in time the HBA is either reset or DOA
 974                          * Nothing should be on txcmplq as it will
 975                          * NEVER complete.
 976                          */
 977                         list_splice_init(&pring->txcmplq, &completions);
 978                         pring->txcmplq_cnt = 0;
 979                         spin_unlock_irq(&phba->hbalock);
 980
 981                         lpfc_sli_abort_iocb_ring(phba, pring);
 982                 }
 983                 /* Cancel all the IOCBs from the completions list */
 984                 lpfc_sli_cancel_iocbs(phba, &completions,
 985                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 986                 return;
 987         }
 988         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 989                 pring = qp->pring;
 990                 if (!pring)
 991                         continue;
 992                 spin_lock_irq(&pring->ring_lock);
 993                 list_for_each_entry_safe(piocb, next_iocb,
 994                                          &pring->txcmplq, list)
 995                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 996                 list_splice_init(&pring->txcmplq, &completions);
 997                 pring->txcmplq_cnt = 0;
 998                 spin_unlock_irq(&pring->ring_lock);
 999                 lpfc_sli_abort_iocb_ring(phba, pring);
1000         }
1001         /* Cancel all the IOCBs from the completions list */
1002         lpfc_sli_cancel_iocbs(phba, &completions,
1003                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1004 }
1005
1006 /**
1007  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1008         int i;
1009  * @phba: pointer to lpfc HBA data structure.
1010  *
1011  * This routine will do uninitialization after the HBA is reset when bring
1012  * down the SLI Layer.
1013  *
1014  * Return codes
1015  *   0 - success.
1016  *   Any other value - error.
1017  **/
1018 static int
1019 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1020 {
1021         lpfc_hba_free_post_buf(phba);
1022         lpfc_hba_clean_txcmplq(phba);
1023         return 0;
1024 }
1025
1026 /**
1027  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1028  * @phba: pointer to lpfc HBA data structure.
1029  *
1030  * This routine will do uninitialization after the HBA is reset when bring
1031  * down the SLI Layer.
1032  *
1033  * Return codes
1034  *   0 - success.
1035  *   Any other value - error.
1036  **/
1037 static int
1038 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1039 {
1040         struct lpfc_scsi_buf *psb, *psb_next;
1041         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1042         LIST_HEAD(aborts);
1043         LIST_HEAD(nvme_aborts);
1044         LIST_HEAD(nvmet_aborts);
1045         unsigned long iflag = 0;
1046         struct lpfc_sglq *sglq_entry = NULL;
1047         int cnt;
1048
1049
1050         lpfc_sli_hbqbuf_free_all(phba);
1051         lpfc_hba_clean_txcmplq(phba);
1052
1053         /* At this point in time the HBA is either reset or DOA. Either
1054          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1055          * on the lpfc_els_sgl_list so that it can either be freed if the
1056          * driver is unloading or reposted if the driver is restarting
1057          * the port.
1058          */
1059         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1060                                         /* scsl_buf_list */
1061         /* sgl_list_lock required because worker thread uses this
1062          * list.
1063          */
1064         spin_lock(&phba->sli4_hba.sgl_list_lock);
1065         list_for_each_entry(sglq_entry,
1066                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1067                 sglq_entry->state = SGL_FREED;
1068
1069         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1070                         &phba->sli4_hba.lpfc_els_sgl_list);
1071
1072
1073         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1074         /* abts_scsi_buf_list_lock required because worker thread uses this
1075          * list.
1076          */
1077         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1078                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1079                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1080                                  &aborts);
1081                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1082         }
1083
1084         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1085                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1086                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1087                                  &nvme_aborts);
1088                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1089                                  &nvmet_aborts);
1090                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1091         }
1092
1093         spin_unlock_irq(&phba->hbalock);
1094
1095         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1096                 psb->pCmd = NULL;
1097                 psb->status = IOSTAT_SUCCESS;
1098         }
1099         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1100         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1101         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1102
1103         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1104                 cnt = 0;
1105                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1106                         psb->pCmd = NULL;
1107                         psb->status = IOSTAT_SUCCESS;
1108                         cnt++;
1109                 }
1110                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1111                 phba->put_nvme_bufs += cnt;
1112                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1113                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1114
1115                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1116                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1117                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1118                 }
1119         }
1120
1121         lpfc_sli4_free_sp_events(phba);
1122         return 0;
1123 }
1124
1125 /**
1126  * lpfc_hba_down_post - Wrapper func for hba down post routine
1127  * @phba: pointer to lpfc HBA data structure.
1128  *
1129  * This routine wraps the actual SLI3 or SLI4 routine for performing
1130  * uninitialization after the HBA is reset when bring down the SLI Layer.
1131  *
1132  * Return codes
1133  *   0 - success.
1134  *   Any other value - error.
1135  **/
1136 int
1137 lpfc_hba_down_post(struct lpfc_hba *phba)
1138 {
1139         return (*phba->lpfc_hba_down_post)(phba);
1140 }
1141
1142 /**
1143  * lpfc_hb_timeout - The HBA-timer timeout handler
1144  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1145  *
1146  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1147  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1148  * work-port-events bitmap and the worker thread is notified. This timeout
1149  * event will be used by the worker thread to invoke the actual timeout
1150  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1151  * be performed in the timeout handler and the HBA timeout event bit shall
1152  * be cleared by the worker thread after it has taken the event bitmap out.
1153  **/
1154 static void
1155 lpfc_hb_timeout(struct timer_list *t)
1156 {
1157         struct lpfc_hba *phba;
1158         uint32_t tmo_posted;
1159         unsigned long iflag;
1160
1161         phba = from_timer(phba, t, hb_tmofunc);
1162
1163         /* Check for heart beat timeout conditions */
1164         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1165         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1166         if (!tmo_posted)
1167                 phba->pport->work_port_events |= WORKER_HB_TMO;
1168         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1169
1170         /* Tell the worker thread there is work to do */
1171         if (!tmo_posted)
1172                 lpfc_worker_wake_up(phba);
1173         return;
1174 }
1175
1176 /**
1177  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1178  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1179  *
1180  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1181  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1182  * work-port-events bitmap and the worker thread is notified. This timeout
1183  * event will be used by the worker thread to invoke the actual timeout
1184  * handler routine, lpfc_rrq_handler. Any periodical operations will
1185  * be performed in the timeout handler and the RRQ timeout event bit shall
1186  * be cleared by the worker thread after it has taken the event bitmap out.
1187  **/
1188 static void
1189 lpfc_rrq_timeout(struct timer_list *t)
1190 {
1191         struct lpfc_hba *phba;
1192         unsigned long iflag;
1193
1194         phba = from_timer(phba, t, rrq_tmr);
1195         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1196         if (!(phba->pport->load_flag & FC_UNLOADING))
1197                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1198         else
1199                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1200         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1201
1202         if (!(phba->pport->load_flag & FC_UNLOADING))
1203                 lpfc_worker_wake_up(phba);
1204 }
1205
1206 /**
1207  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1208  * @phba: pointer to lpfc hba data structure.
1209  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1210  *
1211  * This is the callback function to the lpfc heart-beat mailbox command.
1212  * If configured, the lpfc driver issues the heart-beat mailbox command to
1213  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1214  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1215  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1216  * heart-beat outstanding state. Once the mailbox command comes back and
1217  * no error conditions detected, the heart-beat mailbox command timer is
1218  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1219  * state is cleared for the next heart-beat. If the timer expired with the
1220  * heart-beat outstanding state set, the driver will put the HBA offline.
1221  **/
1222 static void
1223 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1224 {
1225         unsigned long drvr_flag;
1226
1227         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1228         phba->hb_outstanding = 0;
1229         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1230
1231         /* Check and reset heart-beat timer is necessary */
1232         mempool_free(pmboxq, phba->mbox_mem_pool);
1233         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1234                 !(phba->link_state == LPFC_HBA_ERROR) &&
1235                 !(phba->pport->load_flag & FC_UNLOADING))
1236                 mod_timer(&phba->hb_tmofunc,
1237                           jiffies +
1238                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1239         return;
1240 }
1241
1242 /**
1243  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1244  * @phba: pointer to lpfc hba data structure.
1245  *
1246  * This is the actual HBA-timer timeout handler to be invoked by the worker
1247  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1248  * handler performs any periodic operations needed for the device. If such
1249  * periodic event has already been attended to either in the interrupt handler
1250  * or by processing slow-ring or fast-ring events within the HBA-timer
1251  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1252  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1253  * is configured and there is no heart-beat mailbox command outstanding, a
1254  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1255  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1256  * to offline.
1257  **/
1258 void
1259 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1260 {
1261         struct lpfc_vport **vports;
1262         LPFC_MBOXQ_t *pmboxq;
1263         struct lpfc_dmabuf *buf_ptr;
1264         int retval, i;
1265         struct lpfc_sli *psli = &phba->sli;
1266         LIST_HEAD(completions);
1267         struct lpfc_queue *qp;
1268         unsigned long time_elapsed;
1269         uint32_t tick_cqe, max_cqe, val;
1270         uint64_t tot, data1, data2, data3;
1271         struct lpfc_nvmet_tgtport *tgtp;
1272         struct lpfc_register reg_data;
1273         struct nvme_fc_local_port *localport;
1274         struct lpfc_nvme_lport *lport;
1275         struct lpfc_nvme_ctrl_stat *cstat;
1276         void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1277
1278         vports = lpfc_create_vport_work_array(phba);
1279         if (vports != NULL)
1280                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1281                         lpfc_rcv_seq_check_edtov(vports[i]);
1282                         lpfc_fdmi_num_disc_check(vports[i]);
1283                 }
1284         lpfc_destroy_vport_work_array(phba, vports);
1285
1286         if ((phba->link_state == LPFC_HBA_ERROR) ||
1287                 (phba->pport->load_flag & FC_UNLOADING) ||
1288                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1289                 return;
1290
1291         if (phba->cfg_auto_imax) {
1292                 if (!phba->last_eqdelay_time) {
1293                         phba->last_eqdelay_time = jiffies;
1294                         goto skip_eqdelay;
1295                 }
1296                 time_elapsed = jiffies - phba->last_eqdelay_time;
1297                 phba->last_eqdelay_time = jiffies;
1298
1299                 tot = 0xffff;
1300                 /* Check outstanding IO count */
1301                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1302                         if (phba->nvmet_support) {
1303                                 tgtp = phba->targetport->private;
1304                                 /* Calculate outstanding IOs */
1305                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1306                                 tot += atomic_read(&tgtp->xmt_fcp_release);
1307                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1308                         } else {
1309                                 localport = phba->pport->localport;
1310                                 if (!localport || !localport->private)
1311                                         goto skip_eqdelay;
1312                                 lport = (struct lpfc_nvme_lport *)
1313                                         localport->private;
1314                                 tot = 0;
1315                                 for (i = 0;
1316                                         i < phba->cfg_nvme_io_channel; i++) {
1317                                         cstat = &lport->cstat[i];
1318                                         data1 = atomic_read(
1319                                                 &cstat->fc4NvmeInputRequests);
1320                                         data2 = atomic_read(
1321                                                 &cstat->fc4NvmeOutputRequests);
1322                                         data3 = atomic_read(
1323                                                 &cstat->fc4NvmeControlRequests);
1324                                         tot += (data1 + data2 + data3);
1325                                         tot -= atomic_read(
1326                                                 &cstat->fc4NvmeIoCmpls);
1327                                 }
1328                         }
1329                 }
1330
1331                 /* Interrupts per sec per EQ */
1332                 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1333                 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1334
1335                 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1336                 max_cqe = time_elapsed * tick_cqe;
1337
1338                 for (i = 0; i < phba->io_channel_irqs; i++) {
1339                         /* Fast-path EQ */
1340                         qp = phba->sli4_hba.hba_eq[i];
1341                         if (!qp)
1342                                 continue;
1343
1344                         /* Use no EQ delay if we don't have many outstanding
1345                          * IOs, or if we are only processing 1 CQE/ISR or less.
1346                          * Otherwise, assume we can process up to lpfc_fcp_imax
1347                          * interrupts per HBA.
1348                          */
1349                         if (tot < LPFC_NODELAY_MAX_IO ||
1350                             qp->EQ_cqe_cnt <= max_cqe)
1351                                 val = 0;
1352                         else
1353                                 val = phba->cfg_fcp_imax;
1354
1355                         if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1356                                 /* Use EQ Delay Register method */
1357
1358                                 /* Convert for EQ Delay register */
1359                                 if (val) {
1360                                         /* First, interrupts per sec per EQ */
1361                                         val = phba->cfg_fcp_imax /
1362                                                 phba->io_channel_irqs;
1363
1364                                         /* us delay between each interrupt */
1365                                         val = LPFC_SEC_TO_USEC / val;
1366                                 }
1367                                 if (val != qp->q_mode) {
1368                                         reg_data.word0 = 0;
1369                                         bf_set(lpfc_sliport_eqdelay_id,
1370                                                &reg_data, qp->queue_id);
1371                                         bf_set(lpfc_sliport_eqdelay_delay,
1372                                                &reg_data, val);
1373                                         writel(reg_data.word0, eqdreg);
1374                                 }
1375                         } else {
1376                                 /* Use mbox command method */
1377                                 if (val != qp->q_mode)
1378                                         lpfc_modify_hba_eq_delay(phba, i,
1379                                                                  1, val);
1380                         }
1381
1382                         /*
1383                          * val is cfg_fcp_imax or 0 for mbox delay or us delay
1384                          * between interrupts for EQDR.
1385                          */
1386                         qp->q_mode = val;
1387                         qp->EQ_cqe_cnt = 0;
1388                 }
1389         }
1390
1391 skip_eqdelay:
1392         spin_lock_irq(&phba->pport->work_port_lock);
1393
1394         if (time_after(phba->last_completion_time +
1395                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1396                         jiffies)) {
1397                 spin_unlock_irq(&phba->pport->work_port_lock);
1398                 if (!phba->hb_outstanding)
1399                         mod_timer(&phba->hb_tmofunc,
1400                                 jiffies +
1401                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1402                 else
1403                         mod_timer(&phba->hb_tmofunc,
1404                                 jiffies +
1405                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1406                 return;
1407         }
1408         spin_unlock_irq(&phba->pport->work_port_lock);
1409
1410         if (phba->elsbuf_cnt &&
1411                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1412                 spin_lock_irq(&phba->hbalock);
1413                 list_splice_init(&phba->elsbuf, &completions);
1414                 phba->elsbuf_cnt = 0;
1415                 phba->elsbuf_prev_cnt = 0;
1416                 spin_unlock_irq(&phba->hbalock);
1417
1418                 while (!list_empty(&completions)) {
1419                         list_remove_head(&completions, buf_ptr,
1420                                 struct lpfc_dmabuf, list);
1421                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1422                         kfree(buf_ptr);
1423                 }
1424         }
1425         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1426
1427         /* If there is no heart beat outstanding, issue a heartbeat command */
1428         if (phba->cfg_enable_hba_heartbeat) {
1429                 if (!phba->hb_outstanding) {
1430                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1431                                 (list_empty(&psli->mboxq))) {
1432                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1433                                                         GFP_KERNEL);
1434                                 if (!pmboxq) {
1435                                         mod_timer(&phba->hb_tmofunc,
1436                                                  jiffies +
1437                                                  msecs_to_jiffies(1000 *
1438                                                  LPFC_HB_MBOX_INTERVAL));
1439                                         return;
1440                                 }
1441
1442                                 lpfc_heart_beat(phba, pmboxq);
1443                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1444                                 pmboxq->vport = phba->pport;
1445                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1446                                                 MBX_NOWAIT);
1447
1448                                 if (retval != MBX_BUSY &&
1449                                         retval != MBX_SUCCESS) {
1450                                         mempool_free(pmboxq,
1451                                                         phba->mbox_mem_pool);
1452                                         mod_timer(&phba->hb_tmofunc,
1453                                                 jiffies +
1454                                                 msecs_to_jiffies(1000 *
1455                                                 LPFC_HB_MBOX_INTERVAL));
1456                                         return;
1457                                 }
1458                                 phba->skipped_hb = 0;
1459                                 phba->hb_outstanding = 1;
1460                         } else if (time_before_eq(phba->last_completion_time,
1461                                         phba->skipped_hb)) {
1462                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1463                                         "2857 Last completion time not "
1464                                         " updated in %d ms\n",
1465                                         jiffies_to_msecs(jiffies
1466                                                  - phba->last_completion_time));
1467                         } else
1468                                 phba->skipped_hb = jiffies;
1469
1470                         mod_timer(&phba->hb_tmofunc,
1471                                  jiffies +
1472                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1473                         return;
1474                 } else {
1475                         /*
1476                         * If heart beat timeout called with hb_outstanding set
1477                         * we need to give the hb mailbox cmd a chance to
1478                         * complete or TMO.
1479                         */
1480                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1481                                         "0459 Adapter heartbeat still out"
1482                                         "standing:last compl time was %d ms.\n",
1483                                         jiffies_to_msecs(jiffies
1484                                                  - phba->last_completion_time));
1485                         mod_timer(&phba->hb_tmofunc,
1486                                 jiffies +
1487                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1488                 }
1489         } else {
1490                         mod_timer(&phba->hb_tmofunc,
1491                                 jiffies +
1492                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1493         }
1494 }
1495
1496 /**
1497  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1498  * @phba: pointer to lpfc hba data structure.
1499  *
1500  * This routine is called to bring the HBA offline when HBA hardware error
1501  * other than Port Error 6 has been detected.
1502  **/
1503 static void
1504 lpfc_offline_eratt(struct lpfc_hba *phba)
1505 {
1506         struct lpfc_sli   *psli = &phba->sli;
1507
1508         spin_lock_irq(&phba->hbalock);
1509         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1510         spin_unlock_irq(&phba->hbalock);
1511         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512
1513         lpfc_offline(phba);
1514         lpfc_reset_barrier(phba);
1515         spin_lock_irq(&phba->hbalock);
1516         lpfc_sli_brdreset(phba);
1517         spin_unlock_irq(&phba->hbalock);
1518         lpfc_hba_down_post(phba);
1519         lpfc_sli_brdready(phba, HS_MBRDY);
1520         lpfc_unblock_mgmt_io(phba);
1521         phba->link_state = LPFC_HBA_ERROR;
1522         return;
1523 }
1524
1525 /**
1526  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1527  * @phba: pointer to lpfc hba data structure.
1528  *
1529  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1530  * other than Port Error 6 has been detected.
1531  **/
1532 void
1533 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1534 {
1535         spin_lock_irq(&phba->hbalock);
1536         phba->link_state = LPFC_HBA_ERROR;
1537         spin_unlock_irq(&phba->hbalock);
1538
1539         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1540         lpfc_offline(phba);
1541         lpfc_hba_down_post(phba);
1542         lpfc_unblock_mgmt_io(phba);
1543 }
1544
1545 /**
1546  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1547  * @phba: pointer to lpfc hba data structure.
1548  *
1549  * This routine is invoked to handle the deferred HBA hardware error
1550  * conditions. This type of error is indicated by HBA by setting ER1
1551  * and another ER bit in the host status register. The driver will
1552  * wait until the ER1 bit clears before handling the error condition.
1553  **/
1554 static void
1555 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1556 {
1557         uint32_t old_host_status = phba->work_hs;
1558         struct lpfc_sli *psli = &phba->sli;
1559
1560         /* If the pci channel is offline, ignore possible errors,
1561          * since we cannot communicate with the pci card anyway.
1562          */
1563         if (pci_channel_offline(phba->pcidev)) {
1564                 spin_lock_irq(&phba->hbalock);
1565                 phba->hba_flag &= ~DEFER_ERATT;
1566                 spin_unlock_irq(&phba->hbalock);
1567                 return;
1568         }
1569
1570         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1571                 "0479 Deferred Adapter Hardware Error "
1572                 "Data: x%x x%x x%x\n",
1573                 phba->work_hs,
1574                 phba->work_status[0], phba->work_status[1]);
1575
1576         spin_lock_irq(&phba->hbalock);
1577         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1578         spin_unlock_irq(&phba->hbalock);
1579
1580
1581         /*
1582          * Firmware stops when it triggred erratt. That could cause the I/Os
1583          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1584          * SCSI layer retry it after re-establishing link.
1585          */
1586         lpfc_sli_abort_fcp_rings(phba);
1587
1588         /*
1589          * There was a firmware error. Take the hba offline and then
1590          * attempt to restart it.
1591          */
1592         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1593         lpfc_offline(phba);
1594
1595         /* Wait for the ER1 bit to clear.*/
1596         while (phba->work_hs & HS_FFER1) {
1597                 msleep(100);
1598                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1599                         phba->work_hs = UNPLUG_ERR ;
1600                         break;
1601                 }
1602                 /* If driver is unloading let the worker thread continue */
1603                 if (phba->pport->load_flag & FC_UNLOADING) {
1604                         phba->work_hs = 0;
1605                         break;
1606                 }
1607         }
1608
1609         /*
1610          * This is to ptrotect against a race condition in which
1611          * first write to the host attention register clear the
1612          * host status register.
1613          */
1614         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1615                 phba->work_hs = old_host_status & ~HS_FFER1;
1616
1617         spin_lock_irq(&phba->hbalock);
1618         phba->hba_flag &= ~DEFER_ERATT;
1619         spin_unlock_irq(&phba->hbalock);
1620         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1621         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1622 }
1623
1624 static void
1625 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1626 {
1627         struct lpfc_board_event_header board_event;
1628         struct Scsi_Host *shost;
1629
1630         board_event.event_type = FC_REG_BOARD_EVENT;
1631         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1632         shost = lpfc_shost_from_vport(phba->pport);
1633         fc_host_post_vendor_event(shost, fc_get_event_number(),
1634                                   sizeof(board_event),
1635                                   (char *) &board_event,
1636                                   LPFC_NL_VENDOR_ID);
1637 }
1638
1639 /**
1640  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1641  * @phba: pointer to lpfc hba data structure.
1642  *
1643  * This routine is invoked to handle the following HBA hardware error
1644  * conditions:
1645  * 1 - HBA error attention interrupt
1646  * 2 - DMA ring index out of range
1647  * 3 - Mailbox command came back as unknown
1648  **/
1649 static void
1650 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1651 {
1652         struct lpfc_vport *vport = phba->pport;
1653         struct lpfc_sli   *psli = &phba->sli;
1654         uint32_t event_data;
1655         unsigned long temperature;
1656         struct temp_event temp_event_data;
1657         struct Scsi_Host  *shost;
1658
1659         /* If the pci channel is offline, ignore possible errors,
1660          * since we cannot communicate with the pci card anyway.
1661          */
1662         if (pci_channel_offline(phba->pcidev)) {
1663                 spin_lock_irq(&phba->hbalock);
1664                 phba->hba_flag &= ~DEFER_ERATT;
1665                 spin_unlock_irq(&phba->hbalock);
1666                 return;
1667         }
1668
1669         /* If resets are disabled then leave the HBA alone and return */
1670         if (!phba->cfg_enable_hba_reset)
1671                 return;
1672
1673         /* Send an internal error event to mgmt application */
1674         lpfc_board_errevt_to_mgmt(phba);
1675
1676         if (phba->hba_flag & DEFER_ERATT)
1677                 lpfc_handle_deferred_eratt(phba);
1678
1679         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1680                 if (phba->work_hs & HS_FFER6)
1681                         /* Re-establishing Link */
1682                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1683                                         "1301 Re-establishing Link "
1684                                         "Data: x%x x%x x%x\n",
1685                                         phba->work_hs, phba->work_status[0],
1686                                         phba->work_status[1]);
1687                 if (phba->work_hs & HS_FFER8)
1688                         /* Device Zeroization */
1689                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1690                                         "2861 Host Authentication device "
1691                                         "zeroization Data:x%x x%x x%x\n",
1692                                         phba->work_hs, phba->work_status[0],
1693                                         phba->work_status[1]);
1694
1695                 spin_lock_irq(&phba->hbalock);
1696                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1697                 spin_unlock_irq(&phba->hbalock);
1698
1699                 /*
1700                 * Firmware stops when it triggled erratt with HS_FFER6.
1701                 * That could cause the I/Os dropped by the firmware.
1702                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1703                 * retry it after re-establishing link.
1704                 */
1705                 lpfc_sli_abort_fcp_rings(phba);
1706
1707                 /*
1708                  * There was a firmware error.  Take the hba offline and then
1709                  * attempt to restart it.
1710                  */
1711                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1712                 lpfc_offline(phba);
1713                 lpfc_sli_brdrestart(phba);
1714                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1715                         lpfc_unblock_mgmt_io(phba);
1716                         return;
1717                 }
1718                 lpfc_unblock_mgmt_io(phba);
1719         } else if (phba->work_hs & HS_CRIT_TEMP) {
1720                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1721                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1722                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1723                 temp_event_data.data = (uint32_t)temperature;
1724
1725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1726                                 "0406 Adapter maximum temperature exceeded "
1727                                 "(%ld), taking this port offline "
1728                                 "Data: x%x x%x x%x\n",
1729                                 temperature, phba->work_hs,
1730                                 phba->work_status[0], phba->work_status[1]);
1731
1732                 shost = lpfc_shost_from_vport(phba->pport);
1733                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1734                                           sizeof(temp_event_data),
1735                                           (char *) &temp_event_data,
1736                                           SCSI_NL_VID_TYPE_PCI
1737                                           | PCI_VENDOR_ID_EMULEX);
1738
1739                 spin_lock_irq(&phba->hbalock);
1740                 phba->over_temp_state = HBA_OVER_TEMP;
1741                 spin_unlock_irq(&phba->hbalock);
1742                 lpfc_offline_eratt(phba);
1743
1744         } else {
1745                 /* The if clause above forces this code path when the status
1746                  * failure is a value other than FFER6. Do not call the offline
1747                  * twice. This is the adapter hardware error path.
1748                  */
1749                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1750                                 "0457 Adapter Hardware Error "
1751                                 "Data: x%x x%x x%x\n",
1752                                 phba->work_hs,
1753                                 phba->work_status[0], phba->work_status[1]);
1754
1755                 event_data = FC_REG_DUMP_EVENT;
1756                 shost = lpfc_shost_from_vport(vport);
1757                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1758                                 sizeof(event_data), (char *) &event_data,
1759                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1760
1761                 lpfc_offline_eratt(phba);
1762         }
1763         return;
1764 }
1765
1766 /**
1767  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1768  * @phba: pointer to lpfc hba data structure.
1769  * @mbx_action: flag for mailbox shutdown action.
1770  *
1771  * This routine is invoked to perform an SLI4 port PCI function reset in
1772  * response to port status register polling attention. It waits for port
1773  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1774  * During this process, interrupt vectors are freed and later requested
1775  * for handling possible port resource change.
1776  **/
1777 static int
1778 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1779                             bool en_rn_msg)
1780 {
1781         int rc;
1782         uint32_t intr_mode;
1783
1784         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1785             LPFC_SLI_INTF_IF_TYPE_2) {
1786                 /*
1787                  * On error status condition, driver need to wait for port
1788                  * ready before performing reset.
1789                  */
1790                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1791                 if (rc)
1792                         return rc;
1793         }
1794
1795         /* need reset: attempt for port recovery */
1796         if (en_rn_msg)
1797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1798                                 "2887 Reset Needed: Attempting Port "
1799                                 "Recovery...\n");
1800         lpfc_offline_prep(phba, mbx_action);
1801         lpfc_offline(phba);
1802         /* release interrupt for possible resource change */
1803         lpfc_sli4_disable_intr(phba);
1804         rc = lpfc_sli_brdrestart(phba);
1805         if (rc) {
1806                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1807                                 "6309 Failed to restart board\n");
1808                 return rc;
1809         }
1810         /* request and enable interrupt */
1811         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1812         if (intr_mode == LPFC_INTR_ERROR) {
1813                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1814                                 "3175 Failed to enable interrupt\n");
1815                 return -EIO;
1816         }
1817         phba->intr_mode = intr_mode;
1818         rc = lpfc_online(phba);
1819         if (rc == 0)
1820                 lpfc_unblock_mgmt_io(phba);
1821
1822         return rc;
1823 }
1824
1825 /**
1826  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1827  * @phba: pointer to lpfc hba data structure.
1828  *
1829  * This routine is invoked to handle the SLI4 HBA hardware error attention
1830  * conditions.
1831  **/
1832 static void
1833 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1834 {
1835         struct lpfc_vport *vport = phba->pport;
1836         uint32_t event_data;
1837         struct Scsi_Host *shost;
1838         uint32_t if_type;
1839         struct lpfc_register portstat_reg = {0};
1840         uint32_t reg_err1, reg_err2;
1841         uint32_t uerrlo_reg, uemasklo_reg;
1842         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1843         bool en_rn_msg = true;
1844         struct temp_event temp_event_data;
1845         struct lpfc_register portsmphr_reg;
1846         int rc, i;
1847
1848         /* If the pci channel is offline, ignore possible errors, since
1849          * we cannot communicate with the pci card anyway.
1850          */
1851         if (pci_channel_offline(phba->pcidev))
1852                 return;
1853
1854         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1855         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1856         switch (if_type) {
1857         case LPFC_SLI_INTF_IF_TYPE_0:
1858                 pci_rd_rc1 = lpfc_readl(
1859                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1860                                 &uerrlo_reg);
1861                 pci_rd_rc2 = lpfc_readl(
1862                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1863                                 &uemasklo_reg);
1864                 /* consider PCI bus read error as pci_channel_offline */
1865                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1866                         return;
1867                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1868                         lpfc_sli4_offline_eratt(phba);
1869                         return;
1870                 }
1871                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1872                                 "7623 Checking UE recoverable");
1873
1874                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1875                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1876                                        &portsmphr_reg.word0))
1877                                 continue;
1878
1879                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1880                                                    &portsmphr_reg);
1881                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1882                             LPFC_PORT_SEM_UE_RECOVERABLE)
1883                                 break;
1884                         /*Sleep for 1Sec, before checking SEMAPHORE */
1885                         msleep(1000);
1886                 }
1887
1888                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1889                                 "4827 smphr_port_status x%x : Waited %dSec",
1890                                 smphr_port_status, i);
1891
1892                 /* Recoverable UE, reset the HBA device */
1893                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1894                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1895                         for (i = 0; i < 20; i++) {
1896                                 msleep(1000);
1897                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1898                                     &portsmphr_reg.word0) &&
1899                                     (LPFC_POST_STAGE_PORT_READY ==
1900                                      bf_get(lpfc_port_smphr_port_status,
1901                                      &portsmphr_reg))) {
1902                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1903                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1904                                         if (rc == 0)
1905                                                 return;
1906                                         lpfc_printf_log(phba,
1907                                                 KERN_ERR, LOG_INIT,
1908                                                 "4215 Failed to recover UE");
1909                                         break;
1910                                 }
1911                         }
1912                 }
1913                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1914                                 "7624 Firmware not ready: Failing UE recovery,"
1915                                 " waited %dSec", i);
1916                 lpfc_sli4_offline_eratt(phba);
1917                 break;
1918
1919         case LPFC_SLI_INTF_IF_TYPE_2:
1920         case LPFC_SLI_INTF_IF_TYPE_6:
1921                 pci_rd_rc1 = lpfc_readl(
1922                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1923                                 &portstat_reg.word0);
1924                 /* consider PCI bus read error as pci_channel_offline */
1925                 if (pci_rd_rc1 == -EIO) {
1926                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1927                                 "3151 PCI bus read access failure: x%x\n",
1928                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1929                         return;
1930                 }
1931                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1932                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1933                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1934                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1935                                 "2889 Port Overtemperature event, "
1936                                 "taking port offline Data: x%x x%x\n",
1937                                 reg_err1, reg_err2);
1938
1939                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1940                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1941                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1942                         temp_event_data.data = 0xFFFFFFFF;
1943
1944                         shost = lpfc_shost_from_vport(phba->pport);
1945                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1946                                                   sizeof(temp_event_data),
1947                                                   (char *)&temp_event_data,
1948                                                   SCSI_NL_VID_TYPE_PCI
1949                                                   | PCI_VENDOR_ID_EMULEX);
1950
1951                         spin_lock_irq(&phba->hbalock);
1952                         phba->over_temp_state = HBA_OVER_TEMP;
1953                         spin_unlock_irq(&phba->hbalock);
1954                         lpfc_sli4_offline_eratt(phba);
1955                         return;
1956                 }
1957                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1958                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1959                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1960                                         "3143 Port Down: Firmware Update "
1961                                         "Detected\n");
1962                         en_rn_msg = false;
1963                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1964                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1965                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1966                                         "3144 Port Down: Debug Dump\n");
1967                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1968                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1969                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1970                                         "3145 Port Down: Provisioning\n");
1971
1972                 /* If resets are disabled then leave the HBA alone and return */
1973                 if (!phba->cfg_enable_hba_reset)
1974                         return;
1975
1976                 /* Check port status register for function reset */
1977                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1978                                 en_rn_msg);
1979                 if (rc == 0) {
1980                         /* don't report event on forced debug dump */
1981                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1982                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1983                                 return;
1984                         else
1985                                 break;
1986                 }
1987                 /* fall through for not able to recover */
1988                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1989                                 "3152 Unrecoverable error, bring the port "
1990                                 "offline\n");
1991                 lpfc_sli4_offline_eratt(phba);
1992                 break;
1993         case LPFC_SLI_INTF_IF_TYPE_1:
1994         default:
1995                 break;
1996         }
1997         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1998                         "3123 Report dump event to upper layer\n");
1999         /* Send an internal error event to mgmt application */
2000         lpfc_board_errevt_to_mgmt(phba);
2001
2002         event_data = FC_REG_DUMP_EVENT;
2003         shost = lpfc_shost_from_vport(vport);
2004         fc_host_post_vendor_event(shost, fc_get_event_number(),
2005                                   sizeof(event_data), (char *) &event_data,
2006                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2007 }
2008
2009 /**
2010  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2011  * @phba: pointer to lpfc HBA data structure.
2012  *
2013  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2014  * routine from the API jump table function pointer from the lpfc_hba struct.
2015  *
2016  * Return codes
2017  *   0 - success.
2018  *   Any other value - error.
2019  **/
2020 void
2021 lpfc_handle_eratt(struct lpfc_hba *phba)
2022 {
2023         (*phba->lpfc_handle_eratt)(phba);
2024 }
2025
2026 /**
2027  * lpfc_handle_latt - The HBA link event handler
2028  * @phba: pointer to lpfc hba data structure.
2029  *
2030  * This routine is invoked from the worker thread to handle a HBA host
2031  * attention link event. SLI3 only.
2032  **/
2033 void
2034 lpfc_handle_latt(struct lpfc_hba *phba)
2035 {
2036         struct lpfc_vport *vport = phba->pport;
2037         struct lpfc_sli   *psli = &phba->sli;
2038         LPFC_MBOXQ_t *pmb;
2039         volatile uint32_t control;
2040         struct lpfc_dmabuf *mp;
2041         int rc = 0;
2042
2043         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2044         if (!pmb) {
2045                 rc = 1;
2046                 goto lpfc_handle_latt_err_exit;
2047         }
2048
2049         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2050         if (!mp) {
2051                 rc = 2;
2052                 goto lpfc_handle_latt_free_pmb;
2053         }
2054
2055         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2056         if (!mp->virt) {
2057                 rc = 3;
2058                 goto lpfc_handle_latt_free_mp;
2059         }
2060
2061         /* Cleanup any outstanding ELS commands */
2062         lpfc_els_flush_all_cmd(phba);
2063
2064         psli->slistat.link_event++;
2065         lpfc_read_topology(phba, pmb, mp);
2066         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2067         pmb->vport = vport;
2068         /* Block ELS IOCBs until we have processed this mbox command */
2069         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2070         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2071         if (rc == MBX_NOT_FINISHED) {
2072                 rc = 4;
2073                 goto lpfc_handle_latt_free_mbuf;
2074         }
2075
2076         /* Clear Link Attention in HA REG */
2077         spin_lock_irq(&phba->hbalock);
2078         writel(HA_LATT, phba->HAregaddr);
2079         readl(phba->HAregaddr); /* flush */
2080         spin_unlock_irq(&phba->hbalock);
2081
2082         return;
2083
2084 lpfc_handle_latt_free_mbuf:
2085         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2086         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2087 lpfc_handle_latt_free_mp:
2088         kfree(mp);
2089 lpfc_handle_latt_free_pmb:
2090         mempool_free(pmb, phba->mbox_mem_pool);
2091 lpfc_handle_latt_err_exit:
2092         /* Enable Link attention interrupts */
2093         spin_lock_irq(&phba->hbalock);
2094         psli->sli_flag |= LPFC_PROCESS_LA;
2095         control = readl(phba->HCregaddr);
2096         control |= HC_LAINT_ENA;
2097         writel(control, phba->HCregaddr);
2098         readl(phba->HCregaddr); /* flush */
2099
2100         /* Clear Link Attention in HA REG */
2101         writel(HA_LATT, phba->HAregaddr);
2102         readl(phba->HAregaddr); /* flush */
2103         spin_unlock_irq(&phba->hbalock);
2104         lpfc_linkdown(phba);
2105         phba->link_state = LPFC_HBA_ERROR;
2106
2107         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2108                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2109
2110         return;
2111 }
2112
2113 /**
2114  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2115  * @phba: pointer to lpfc hba data structure.
2116  * @vpd: pointer to the vital product data.
2117  * @len: length of the vital product data in bytes.
2118  *
2119  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2120  * an array of characters. In this routine, the ModelName, ProgramType, and
2121  * ModelDesc, etc. fields of the phba data structure will be populated.
2122  *
2123  * Return codes
2124  *   0 - pointer to the VPD passed in is NULL
2125  *   1 - success
2126  **/
2127 int
2128 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2129 {
2130         uint8_t lenlo, lenhi;
2131         int Length;
2132         int i, j;
2133         int finished = 0;
2134         int index = 0;
2135
2136         if (!vpd)
2137                 return 0;
2138
2139         /* Vital Product */
2140         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2141                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2142                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2143                         (uint32_t) vpd[3]);
2144         while (!finished && (index < (len - 4))) {
2145                 switch (vpd[index]) {
2146                 case 0x82:
2147                 case 0x91:
2148                         index += 1;
2149                         lenlo = vpd[index];
2150                         index += 1;
2151                         lenhi = vpd[index];
2152                         index += 1;
2153                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2154                         index += i;
2155                         break;
2156                 case 0x90:
2157                         index += 1;
2158                         lenlo = vpd[index];
2159                         index += 1;
2160                         lenhi = vpd[index];
2161                         index += 1;
2162                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2163                         if (Length > len - index)
2164                                 Length = len - index;
2165                         while (Length > 0) {
2166                         /* Look for Serial Number */
2167                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2168                                 index += 2;
2169                                 i = vpd[index];
2170                                 index += 1;
2171                                 j = 0;
2172                                 Length -= (3+i);
2173                                 while(i--) {
2174                                         phba->SerialNumber[j++] = vpd[index++];
2175                                         if (j == 31)
2176                                                 break;
2177                                 }
2178                                 phba->SerialNumber[j] = 0;
2179                                 continue;
2180                         }
2181                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2182                                 phba->vpd_flag |= VPD_MODEL_DESC;
2183                                 index += 2;
2184                                 i = vpd[index];
2185                                 index += 1;
2186                                 j = 0;
2187                                 Length -= (3+i);
2188                                 while(i--) {
2189                                         phba->ModelDesc[j++] = vpd[index++];
2190                                         if (j == 255)
2191                                                 break;
2192                                 }
2193                                 phba->ModelDesc[j] = 0;
2194                                 continue;
2195                         }
2196                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2197                                 phba->vpd_flag |= VPD_MODEL_NAME;
2198                                 index += 2;
2199                                 i = vpd[index];
2200                                 index += 1;
2201                                 j = 0;
2202                                 Length -= (3+i);
2203                                 while(i--) {
2204                                         phba->ModelName[j++] = vpd[index++];
2205                                         if (j == 79)
2206                                                 break;
2207                                 }
2208                                 phba->ModelName[j] = 0;
2209                                 continue;
2210                         }
2211                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2212                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2213                                 index += 2;
2214                                 i = vpd[index];
2215                                 index += 1;
2216                                 j = 0;
2217                                 Length -= (3+i);
2218                                 while(i--) {
2219                                         phba->ProgramType[j++] = vpd[index++];
2220                                         if (j == 255)
2221                                                 break;
2222                                 }
2223                                 phba->ProgramType[j] = 0;
2224                                 continue;
2225                         }
2226                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2227                                 phba->vpd_flag |= VPD_PORT;
2228                                 index += 2;
2229                                 i = vpd[index];
2230                                 index += 1;
2231                                 j = 0;
2232                                 Length -= (3+i);
2233                                 while(i--) {
2234                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2235                                             (phba->sli4_hba.pport_name_sta ==
2236                                              LPFC_SLI4_PPNAME_GET)) {
2237                                                 j++;
2238                                                 index++;
2239                                         } else
2240                                                 phba->Port[j++] = vpd[index++];
2241                                         if (j == 19)
2242                                                 break;
2243                                 }
2244                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2245                                     (phba->sli4_hba.pport_name_sta ==
2246                                      LPFC_SLI4_PPNAME_NON))
2247                                         phba->Port[j] = 0;
2248                                 continue;
2249                         }
2250                         else {
2251                                 index += 2;
2252                                 i = vpd[index];
2253                                 index += 1;
2254                                 index += i;
2255                                 Length -= (3 + i);
2256                         }
2257                 }
2258                 finished = 0;
2259                 break;
2260                 case 0x78:
2261                         finished = 1;
2262                         break;
2263                 default:
2264                         index ++;
2265                         break;
2266                 }
2267         }
2268
2269         return(1);
2270 }
2271
2272 /**
2273  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2274  * @phba: pointer to lpfc hba data structure.
2275  * @mdp: pointer to the data structure to hold the derived model name.
2276  * @descp: pointer to the data structure to hold the derived description.
2277  *
2278  * This routine retrieves HBA's description based on its registered PCI device
2279  * ID. The @descp passed into this function points to an array of 256 chars. It
2280  * shall be returned with the model name, maximum speed, and the host bus type.
2281  * The @mdp passed into this function points to an array of 80 chars. When the
2282  * function returns, the @mdp will be filled with the model name.
2283  **/
2284 static void
2285 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2286 {
2287         lpfc_vpd_t *vp;
2288         uint16_t dev_id = phba->pcidev->device;
2289         int max_speed;
2290         int GE = 0;
2291         int oneConnect = 0; /* default is not a oneConnect */
2292         struct {
2293                 char *name;
2294                 char *bus;
2295                 char *function;
2296         } m = {"<Unknown>", "", ""};
2297
2298         if (mdp && mdp[0] != '\0'
2299                 && descp && descp[0] != '\0')
2300                 return;
2301
2302         if (phba->lmt & LMT_64Gb)
2303                 max_speed = 64;
2304         else if (phba->lmt & LMT_32Gb)
2305                 max_speed = 32;
2306         else if (phba->lmt & LMT_16Gb)
2307                 max_speed = 16;
2308         else if (phba->lmt & LMT_10Gb)
2309                 max_speed = 10;
2310         else if (phba->lmt & LMT_8Gb)
2311                 max_speed = 8;
2312         else if (phba->lmt & LMT_4Gb)
2313                 max_speed = 4;
2314         else if (phba->lmt & LMT_2Gb)
2315                 max_speed = 2;
2316         else if (phba->lmt & LMT_1Gb)
2317                 max_speed = 1;
2318         else
2319                 max_speed = 0;
2320
2321         vp = &phba->vpd;
2322
2323         switch (dev_id) {
2324         case PCI_DEVICE_ID_FIREFLY:
2325                 m = (typeof(m)){"LP6000", "PCI",
2326                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2327                 break;
2328         case PCI_DEVICE_ID_SUPERFLY:
2329                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2330                         m = (typeof(m)){"LP7000", "PCI", ""};
2331                 else
2332                         m = (typeof(m)){"LP7000E", "PCI", ""};
2333                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2334                 break;
2335         case PCI_DEVICE_ID_DRAGONFLY:
2336                 m = (typeof(m)){"LP8000", "PCI",
2337                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2338                 break;
2339         case PCI_DEVICE_ID_CENTAUR:
2340                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2341                         m = (typeof(m)){"LP9002", "PCI", ""};
2342                 else
2343                         m = (typeof(m)){"LP9000", "PCI", ""};
2344                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2345                 break;
2346         case PCI_DEVICE_ID_RFLY:
2347                 m = (typeof(m)){"LP952", "PCI",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_PEGASUS:
2351                 m = (typeof(m)){"LP9802", "PCI-X",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_THOR:
2355                 m = (typeof(m)){"LP10000", "PCI-X",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_VIPER:
2359                 m = (typeof(m)){"LPX1000",  "PCI-X",
2360                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2361                 break;
2362         case PCI_DEVICE_ID_PFLY:
2363                 m = (typeof(m)){"LP982", "PCI-X",
2364                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2365                 break;
2366         case PCI_DEVICE_ID_TFLY:
2367                 m = (typeof(m)){"LP1050", "PCI-X",
2368                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2369                 break;
2370         case PCI_DEVICE_ID_HELIOS:
2371                 m = (typeof(m)){"LP11000", "PCI-X2",
2372                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2373                 break;
2374         case PCI_DEVICE_ID_HELIOS_SCSP:
2375                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2376                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_HELIOS_DCSP:
2379                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2380                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2381                 break;
2382         case PCI_DEVICE_ID_NEPTUNE:
2383                 m = (typeof(m)){"LPe1000", "PCIe",
2384                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2385                 break;
2386         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2387                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2388                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2389                 break;
2390         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2391                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2392                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2393                 break;
2394         case PCI_DEVICE_ID_BMID:
2395                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_BSMB:
2398                 m = (typeof(m)){"LP111", "PCI-X2",
2399                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2400                 break;
2401         case PCI_DEVICE_ID_ZEPHYR:
2402                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2403                 break;
2404         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2405                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2406                 break;
2407         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2408                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2409                 GE = 1;
2410                 break;
2411         case PCI_DEVICE_ID_ZMID:
2412                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2413                 break;
2414         case PCI_DEVICE_ID_ZSMB:
2415                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2416                 break;
2417         case PCI_DEVICE_ID_LP101:
2418                 m = (typeof(m)){"LP101", "PCI-X",
2419                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_LP10000S:
2422                 m = (typeof(m)){"LP10000-S", "PCI",
2423                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2424                 break;
2425         case PCI_DEVICE_ID_LP11000S:
2426                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2427                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2428                 break;
2429         case PCI_DEVICE_ID_LPE11000S:
2430                 m = (typeof(m)){"LPe11000-S", "PCIe",
2431                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2432                 break;
2433         case PCI_DEVICE_ID_SAT:
2434                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT_MID:
2437                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_SAT_SMB:
2440                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_SAT_DCSP:
2443                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2444                 break;
2445         case PCI_DEVICE_ID_SAT_SCSP:
2446                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_SAT_S:
2449                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_HORNET:
2452                 m = (typeof(m)){"LP21000", "PCIe",
2453                                 "Obsolete, Unsupported FCoE Adapter"};
2454                 GE = 1;
2455                 break;
2456         case PCI_DEVICE_ID_PROTEUS_VF:
2457                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_PROTEUS_PF:
2461                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_PROTEUS_S:
2465                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2466                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2467                 break;
2468         case PCI_DEVICE_ID_TIGERSHARK:
2469                 oneConnect = 1;
2470                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2471                 break;
2472         case PCI_DEVICE_ID_TOMCAT:
2473                 oneConnect = 1;
2474                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2475                 break;
2476         case PCI_DEVICE_ID_FALCON:
2477                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2478                                 "EmulexSecure Fibre"};
2479                 break;
2480         case PCI_DEVICE_ID_BALIUS:
2481                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2482                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2483                 break;
2484         case PCI_DEVICE_ID_LANCER_FC:
2485                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2486                 break;
2487         case PCI_DEVICE_ID_LANCER_FC_VF:
2488                 m = (typeof(m)){"LPe16000", "PCIe",
2489                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_FCOE:
2492                 oneConnect = 1;
2493                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2494                 break;
2495         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2496                 oneConnect = 1;
2497                 m = (typeof(m)){"OCe15100", "PCIe",
2498                                 "Obsolete, Unsupported FCoE"};
2499                 break;
2500         case PCI_DEVICE_ID_LANCER_G6_FC:
2501                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2502                 break;
2503         case PCI_DEVICE_ID_LANCER_G7_FC:
2504                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2505                 break;
2506         case PCI_DEVICE_ID_SKYHAWK:
2507         case PCI_DEVICE_ID_SKYHAWK_VF:
2508                 oneConnect = 1;
2509                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2510                 break;
2511         default:
2512                 m = (typeof(m)){"Unknown", "", ""};
2513                 break;
2514         }
2515
2516         if (mdp && mdp[0] == '\0')
2517                 snprintf(mdp, 79,"%s", m.name);
2518         /*
2519          * oneConnect hba requires special processing, they are all initiators
2520          * and we put the port number on the end
2521          */
2522         if (descp && descp[0] == '\0') {
2523                 if (oneConnect)
2524                         snprintf(descp, 255,
2525                                 "Emulex OneConnect %s, %s Initiator %s",
2526                                 m.name, m.function,
2527                                 phba->Port);
2528                 else if (max_speed == 0)
2529                         snprintf(descp, 255,
2530                                 "Emulex %s %s %s",
2531                                 m.name, m.bus, m.function);
2532                 else
2533                         snprintf(descp, 255,
2534                                 "Emulex %s %d%s %s %s",
2535                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2536                                 m.bus, m.function);
2537         }
2538 }
2539
2540 /**
2541  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2542  * @phba: pointer to lpfc hba data structure.
2543  * @pring: pointer to a IOCB ring.
2544  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2545  *
2546  * This routine posts a given number of IOCBs with the associated DMA buffer
2547  * descriptors specified by the cnt argument to the given IOCB ring.
2548  *
2549  * Return codes
2550  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2551  **/
2552 int
2553 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2554 {
2555         IOCB_t *icmd;
2556         struct lpfc_iocbq *iocb;
2557         struct lpfc_dmabuf *mp1, *mp2;
2558
2559         cnt += pring->missbufcnt;
2560
2561         /* While there are buffers to post */
2562         while (cnt > 0) {
2563                 /* Allocate buffer for  command iocb */
2564                 iocb = lpfc_sli_get_iocbq(phba);
2565                 if (iocb == NULL) {
2566                         pring->missbufcnt = cnt;
2567                         return cnt;
2568                 }
2569                 icmd = &iocb->iocb;
2570
2571                 /* 2 buffers can be posted per command */
2572                 /* Allocate buffer to post */
2573                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2574                 if (mp1)
2575                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2576                 if (!mp1 || !mp1->virt) {
2577                         kfree(mp1);
2578                         lpfc_sli_release_iocbq(phba, iocb);
2579                         pring->missbufcnt = cnt;
2580                         return cnt;
2581                 }
2582
2583                 INIT_LIST_HEAD(&mp1->list);
2584                 /* Allocate buffer to post */
2585                 if (cnt > 1) {
2586                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2587                         if (mp2)
2588                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2589                                                             &mp2->phys);
2590                         if (!mp2 || !mp2->virt) {
2591                                 kfree(mp2);
2592                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2593                                 kfree(mp1);
2594                                 lpfc_sli_release_iocbq(phba, iocb);
2595                                 pring->missbufcnt = cnt;
2596                                 return cnt;
2597                         }
2598
2599                         INIT_LIST_HEAD(&mp2->list);
2600                 } else {
2601                         mp2 = NULL;
2602                 }
2603
2604                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2605                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2606                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2607                 icmd->ulpBdeCount = 1;
2608                 cnt--;
2609                 if (mp2) {
2610                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2611                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2612                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2613                         cnt--;
2614                         icmd->ulpBdeCount = 2;
2615                 }
2616
2617                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2618                 icmd->ulpLe = 1;
2619
2620                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2621                     IOCB_ERROR) {
2622                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2623                         kfree(mp1);
2624                         cnt++;
2625                         if (mp2) {
2626                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2627                                 kfree(mp2);
2628                                 cnt++;
2629                         }
2630                         lpfc_sli_release_iocbq(phba, iocb);
2631                         pring->missbufcnt = cnt;
2632                         return cnt;
2633                 }
2634                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2635                 if (mp2)
2636                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2637         }
2638         pring->missbufcnt = 0;
2639         return 0;
2640 }
2641
2642 /**
2643  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2644  * @phba: pointer to lpfc hba data structure.
2645  *
2646  * This routine posts initial receive IOCB buffers to the ELS ring. The
2647  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2648  * set to 64 IOCBs. SLI3 only.
2649  *
2650  * Return codes
2651  *   0 - success (currently always success)
2652  **/
2653 static int
2654 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2655 {
2656         struct lpfc_sli *psli = &phba->sli;
2657
2658         /* Ring 0, ELS / CT buffers */
2659         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2660         /* Ring 2 - FCP no buffers needed */
2661
2662         return 0;
2663 }
2664
2665 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2666
2667 /**
2668  * lpfc_sha_init - Set up initial array of hash table entries
2669  * @HashResultPointer: pointer to an array as hash table.
2670  *
2671  * This routine sets up the initial values to the array of hash table entries
2672  * for the LC HBAs.
2673  **/
2674 static void
2675 lpfc_sha_init(uint32_t * HashResultPointer)
2676 {
2677         HashResultPointer[0] = 0x67452301;
2678         HashResultPointer[1] = 0xEFCDAB89;
2679         HashResultPointer[2] = 0x98BADCFE;
2680         HashResultPointer[3] = 0x10325476;
2681         HashResultPointer[4] = 0xC3D2E1F0;
2682 }
2683
2684 /**
2685  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2686  * @HashResultPointer: pointer to an initial/result hash table.
2687  * @HashWorkingPointer: pointer to an working hash table.
2688  *
2689  * This routine iterates an initial hash table pointed by @HashResultPointer
2690  * with the values from the working hash table pointeed by @HashWorkingPointer.
2691  * The results are putting back to the initial hash table, returned through
2692  * the @HashResultPointer as the result hash table.
2693  **/
2694 static void
2695 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2696 {
2697         int t;
2698         uint32_t TEMP;
2699         uint32_t A, B, C, D, E;
2700         t = 16;
2701         do {
2702                 HashWorkingPointer[t] =
2703                     S(1,
2704                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2705                                                                      8] ^
2706                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2707         } while (++t <= 79);
2708         t = 0;
2709         A = HashResultPointer[0];
2710         B = HashResultPointer[1];
2711         C = HashResultPointer[2];
2712         D = HashResultPointer[3];
2713         E = HashResultPointer[4];
2714
2715         do {
2716                 if (t < 20) {
2717                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2718                 } else if (t < 40) {
2719                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2720                 } else if (t < 60) {
2721                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2722                 } else {
2723                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2724                 }
2725                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2726                 E = D;
2727                 D = C;
2728                 C = S(30, B);
2729                 B = A;
2730                 A = TEMP;
2731         } while (++t <= 79);
2732
2733         HashResultPointer[0] += A;
2734         HashResultPointer[1] += B;
2735         HashResultPointer[2] += C;
2736         HashResultPointer[3] += D;
2737         HashResultPointer[4] += E;
2738
2739 }
2740
2741 /**
2742  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2743  * @RandomChallenge: pointer to the entry of host challenge random number array.
2744  * @HashWorking: pointer to the entry of the working hash array.
2745  *
2746  * This routine calculates the working hash array referred by @HashWorking
2747  * from the challenge random numbers associated with the host, referred by
2748  * @RandomChallenge. The result is put into the entry of the working hash
2749  * array and returned by reference through @HashWorking.
2750  **/
2751 static void
2752 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2753 {
2754         *HashWorking = (*RandomChallenge ^ *HashWorking);
2755 }
2756
2757 /**
2758  * lpfc_hba_init - Perform special handling for LC HBA initialization
2759  * @phba: pointer to lpfc hba data structure.
2760  * @hbainit: pointer to an array of unsigned 32-bit integers.
2761  *
2762  * This routine performs the special handling for LC HBA initialization.
2763  **/
2764 void
2765 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2766 {
2767         int t;
2768         uint32_t *HashWorking;
2769         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2770
2771         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2772         if (!HashWorking)
2773                 return;
2774
2775         HashWorking[0] = HashWorking[78] = *pwwnn++;
2776         HashWorking[1] = HashWorking[79] = *pwwnn;
2777
2778         for (t = 0; t < 7; t++)
2779                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2780
2781         lpfc_sha_init(hbainit);
2782         lpfc_sha_iterate(hbainit, HashWorking);
2783         kfree(HashWorking);
2784 }
2785
2786 /**
2787  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2788  * @vport: pointer to a virtual N_Port data structure.
2789  *
2790  * This routine performs the necessary cleanups before deleting the @vport.
2791  * It invokes the discovery state machine to perform necessary state
2792  * transitions and to release the ndlps associated with the @vport. Note,
2793  * the physical port is treated as @vport 0.
2794  **/
2795 void
2796 lpfc_cleanup(struct lpfc_vport *vport)
2797 {
2798         struct lpfc_hba   *phba = vport->phba;
2799         struct lpfc_nodelist *ndlp, *next_ndlp;
2800         int i = 0;
2801
2802         if (phba->link_state > LPFC_LINK_DOWN)
2803                 lpfc_port_link_failure(vport);
2804
2805         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2806                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2807                         ndlp = lpfc_enable_node(vport, ndlp,
2808                                                 NLP_STE_UNUSED_NODE);
2809                         if (!ndlp)
2810                                 continue;
2811                         spin_lock_irq(&phba->ndlp_lock);
2812                         NLP_SET_FREE_REQ(ndlp);
2813                         spin_unlock_irq(&phba->ndlp_lock);
2814                         /* Trigger the release of the ndlp memory */
2815                         lpfc_nlp_put(ndlp);
2816                         continue;
2817                 }
2818                 spin_lock_irq(&phba->ndlp_lock);
2819                 if (NLP_CHK_FREE_REQ(ndlp)) {
2820                         /* The ndlp should not be in memory free mode already */
2821                         spin_unlock_irq(&phba->ndlp_lock);
2822                         continue;
2823                 } else
2824                         /* Indicate request for freeing ndlp memory */
2825                         NLP_SET_FREE_REQ(ndlp);
2826                 spin_unlock_irq(&phba->ndlp_lock);
2827
2828                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2829                     ndlp->nlp_DID == Fabric_DID) {
2830                         /* Just free up ndlp with Fabric_DID for vports */
2831                         lpfc_nlp_put(ndlp);
2832                         continue;
2833                 }
2834
2835                 /* take care of nodes in unused state before the state
2836                  * machine taking action.
2837                  */
2838                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2839                         lpfc_nlp_put(ndlp);
2840                         continue;
2841                 }
2842
2843                 if (ndlp->nlp_type & NLP_FABRIC)
2844                         lpfc_disc_state_machine(vport, ndlp, NULL,
2845                                         NLP_EVT_DEVICE_RECOVERY);
2846
2847                 lpfc_disc_state_machine(vport, ndlp, NULL,
2848                                              NLP_EVT_DEVICE_RM);
2849         }
2850
2851         /* At this point, ALL ndlp's should be gone
2852          * because of the previous NLP_EVT_DEVICE_RM.
2853          * Lets wait for this to happen, if needed.
2854          */
2855         while (!list_empty(&vport->fc_nodes)) {
2856                 if (i++ > 3000) {
2857                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2858                                 "0233 Nodelist not empty\n");
2859                         list_for_each_entry_safe(ndlp, next_ndlp,
2860                                                 &vport->fc_nodes, nlp_listp) {
2861                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2862                                                 LOG_NODE,
2863                                                 "0282 did:x%x ndlp:x%p "
2864                                                 "usgmap:x%x refcnt:%d\n",
2865                                                 ndlp->nlp_DID, (void *)ndlp,
2866                                                 ndlp->nlp_usg_map,
2867                                                 kref_read(&ndlp->kref));
2868                         }
2869                         break;
2870                 }
2871
2872                 /* Wait for any activity on ndlps to settle */
2873                 msleep(10);
2874         }
2875         lpfc_cleanup_vports_rrqs(vport, NULL);
2876 }
2877
2878 /**
2879  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2880  * @vport: pointer to a virtual N_Port data structure.
2881  *
2882  * This routine stops all the timers associated with a @vport. This function
2883  * is invoked before disabling or deleting a @vport. Note that the physical
2884  * port is treated as @vport 0.
2885  **/
2886 void
2887 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2888 {
2889         del_timer_sync(&vport->els_tmofunc);
2890         del_timer_sync(&vport->delayed_disc_tmo);
2891         lpfc_can_disctmo(vport);
2892         return;
2893 }
2894
2895 /**
2896  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2897  * @phba: pointer to lpfc hba data structure.
2898  *
2899  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2900  * caller of this routine should already hold the host lock.
2901  **/
2902 void
2903 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2904 {
2905         /* Clear pending FCF rediscovery wait flag */
2906         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2907
2908         /* Now, try to stop the timer */
2909         del_timer(&phba->fcf.redisc_wait);
2910 }
2911
2912 /**
2913  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2914  * @phba: pointer to lpfc hba data structure.
2915  *
2916  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2917  * checks whether the FCF rediscovery wait timer is pending with the host
2918  * lock held before proceeding with disabling the timer and clearing the
2919  * wait timer pendig flag.
2920  **/
2921 void
2922 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2923 {
2924         spin_lock_irq(&phba->hbalock);
2925         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2926                 /* FCF rediscovery timer already fired or stopped */
2927                 spin_unlock_irq(&phba->hbalock);
2928                 return;
2929         }
2930         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2931         /* Clear failover in progress flags */
2932         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2933         spin_unlock_irq(&phba->hbalock);
2934 }
2935
2936 /**
2937  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2938  * @phba: pointer to lpfc hba data structure.
2939  *
2940  * This routine stops all the timers associated with a HBA. This function is
2941  * invoked before either putting a HBA offline or unloading the driver.
2942  **/
2943 void
2944 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2945 {
2946         lpfc_stop_vport_timers(phba->pport);
2947         del_timer_sync(&phba->sli.mbox_tmo);
2948         del_timer_sync(&phba->fabric_block_timer);
2949         del_timer_sync(&phba->eratt_poll);
2950         del_timer_sync(&phba->hb_tmofunc);
2951         if (phba->sli_rev == LPFC_SLI_REV4) {
2952                 del_timer_sync(&phba->rrq_tmr);
2953                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2954         }
2955         phba->hb_outstanding = 0;
2956
2957         switch (phba->pci_dev_grp) {
2958         case LPFC_PCI_DEV_LP:
2959                 /* Stop any LightPulse device specific driver timers */
2960                 del_timer_sync(&phba->fcp_poll_timer);
2961                 break;
2962         case LPFC_PCI_DEV_OC:
2963                 /* Stop any OneConnect device sepcific driver timers */
2964                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2965                 break;
2966         default:
2967                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2968                                 "0297 Invalid device group (x%x)\n",
2969                                 phba->pci_dev_grp);
2970                 break;
2971         }
2972         return;
2973 }
2974
2975 /**
2976  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2977  * @phba: pointer to lpfc hba data structure.
2978  *
2979  * This routine marks a HBA's management interface as blocked. Once the HBA's
2980  * management interface is marked as blocked, all the user space access to
2981  * the HBA, whether they are from sysfs interface or libdfc interface will
2982  * all be blocked. The HBA is set to block the management interface when the
2983  * driver prepares the HBA interface for online or offline.
2984  **/
2985 static void
2986 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2987 {
2988         unsigned long iflag;
2989         uint8_t actcmd = MBX_HEARTBEAT;
2990         unsigned long timeout;
2991
2992         spin_lock_irqsave(&phba->hbalock, iflag);
2993         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2994         spin_unlock_irqrestore(&phba->hbalock, iflag);
2995         if (mbx_action == LPFC_MBX_NO_WAIT)
2996                 return;
2997         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2998         spin_lock_irqsave(&phba->hbalock, iflag);
2999         if (phba->sli.mbox_active) {
3000                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3001                 /* Determine how long we might wait for the active mailbox
3002                  * command to be gracefully completed by firmware.
3003                  */
3004                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3005                                 phba->sli.mbox_active) * 1000) + jiffies;
3006         }
3007         spin_unlock_irqrestore(&phba->hbalock, iflag);
3008
3009         /* Wait for the outstnading mailbox command to complete */
3010         while (phba->sli.mbox_active) {
3011                 /* Check active mailbox complete status every 2ms */
3012                 msleep(2);
3013                 if (time_after(jiffies, timeout)) {
3014                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3015                                 "2813 Mgmt IO is Blocked %x "
3016                                 "- mbox cmd %x still active\n",
3017                                 phba->sli.sli_flag, actcmd);
3018                         break;
3019                 }
3020         }
3021 }
3022
3023 /**
3024  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3025  * @phba: pointer to lpfc hba data structure.
3026  *
3027  * Allocate RPIs for all active remote nodes. This is needed whenever
3028  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3029  * is to fixup the temporary rpi assignments.
3030  **/
3031 void
3032 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3033 {
3034         struct lpfc_nodelist  *ndlp, *next_ndlp;
3035         struct lpfc_vport **vports;
3036         int i, rpi;
3037         unsigned long flags;
3038
3039         if (phba->sli_rev != LPFC_SLI_REV4)
3040                 return;
3041
3042         vports = lpfc_create_vport_work_array(phba);
3043         if (vports == NULL)
3044                 return;
3045
3046         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3047                 if (vports[i]->load_flag & FC_UNLOADING)
3048                         continue;
3049
3050                 list_for_each_entry_safe(ndlp, next_ndlp,
3051                                          &vports[i]->fc_nodes,
3052                                          nlp_listp) {
3053                         if (!NLP_CHK_NODE_ACT(ndlp))
3054                                 continue;
3055                         rpi = lpfc_sli4_alloc_rpi(phba);
3056                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3057                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3058                                 NLP_CLR_NODE_ACT(ndlp);
3059                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3060                                 continue;
3061                         }
3062                         ndlp->nlp_rpi = rpi;
3063                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3064                                          "0009 rpi:%x DID:%x "
3065                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3066                                          ndlp->nlp_DID, ndlp->nlp_flag,
3067                                          ndlp->nlp_usg_map, ndlp);
3068                 }
3069         }
3070         lpfc_destroy_vport_work_array(phba, vports);
3071 }
3072
3073 /**
3074  * lpfc_online - Initialize and bring a HBA online
3075  * @phba: pointer to lpfc hba data structure.
3076  *
3077  * This routine initializes the HBA and brings a HBA online. During this
3078  * process, the management interface is blocked to prevent user space access
3079  * to the HBA interfering with the driver initialization.
3080  *
3081  * Return codes
3082  *   0 - successful
3083  *   1 - failed
3084  **/
3085 int
3086 lpfc_online(struct lpfc_hba *phba)
3087 {
3088         struct lpfc_vport *vport;
3089         struct lpfc_vport **vports;
3090         int i, error = 0;
3091         bool vpis_cleared = false;
3092
3093         if (!phba)
3094                 return 0;
3095         vport = phba->pport;
3096
3097         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3098                 return 0;
3099
3100         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3101                         "0458 Bring Adapter online\n");
3102
3103         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3104
3105         if (phba->sli_rev == LPFC_SLI_REV4) {
3106                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3107                         lpfc_unblock_mgmt_io(phba);
3108                         return 1;
3109                 }
3110                 spin_lock_irq(&phba->hbalock);
3111                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3112                         vpis_cleared = true;
3113                 spin_unlock_irq(&phba->hbalock);
3114
3115                 /* Reestablish the local initiator port.
3116                  * The offline process destroyed the previous lport.
3117                  */
3118                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3119                                 !phba->nvmet_support) {
3120                         error = lpfc_nvme_create_localport(phba->pport);
3121                         if (error)
3122                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3123                                         "6132 NVME restore reg failed "
3124                                         "on nvmei error x%x\n", error);
3125                 }
3126         } else {
3127                 lpfc_sli_queue_init(phba);
3128                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3129                         lpfc_unblock_mgmt_io(phba);
3130                         return 1;
3131                 }
3132         }
3133
3134         vports = lpfc_create_vport_work_array(phba);
3135         if (vports != NULL) {
3136                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3137                         struct Scsi_Host *shost;
3138                         shost = lpfc_shost_from_vport(vports[i]);
3139                         spin_lock_irq(shost->host_lock);
3140                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3141                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3142                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3143                         if (phba->sli_rev == LPFC_SLI_REV4) {
3144                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3145                                 if ((vpis_cleared) &&
3146                                     (vports[i]->port_type !=
3147                                         LPFC_PHYSICAL_PORT))
3148                                         vports[i]->vpi = 0;
3149                         }
3150                         spin_unlock_irq(shost->host_lock);
3151                 }
3152         }
3153         lpfc_destroy_vport_work_array(phba, vports);
3154
3155         lpfc_unblock_mgmt_io(phba);
3156         return 0;
3157 }
3158
3159 /**
3160  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3161  * @phba: pointer to lpfc hba data structure.
3162  *
3163  * This routine marks a HBA's management interface as not blocked. Once the
3164  * HBA's management interface is marked as not blocked, all the user space
3165  * access to the HBA, whether they are from sysfs interface or libdfc
3166  * interface will be allowed. The HBA is set to block the management interface
3167  * when the driver prepares the HBA interface for online or offline and then
3168  * set to unblock the management interface afterwards.
3169  **/
3170 void
3171 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3172 {
3173         unsigned long iflag;
3174
3175         spin_lock_irqsave(&phba->hbalock, iflag);
3176         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3177         spin_unlock_irqrestore(&phba->hbalock, iflag);
3178 }
3179
3180 /**
3181  * lpfc_offline_prep - Prepare a HBA to be brought offline
3182  * @phba: pointer to lpfc hba data structure.
3183  *
3184  * This routine is invoked to prepare a HBA to be brought offline. It performs
3185  * unregistration login to all the nodes on all vports and flushes the mailbox
3186  * queue to make it ready to be brought offline.
3187  **/
3188 void
3189 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3190 {
3191         struct lpfc_vport *vport = phba->pport;
3192         struct lpfc_nodelist  *ndlp, *next_ndlp;
3193         struct lpfc_vport **vports;
3194         struct Scsi_Host *shost;
3195         int i;
3196
3197         if (vport->fc_flag & FC_OFFLINE_MODE)
3198                 return;
3199
3200         lpfc_block_mgmt_io(phba, mbx_action);
3201
3202         lpfc_linkdown(phba);
3203
3204         /* Issue an unreg_login to all nodes on all vports */
3205         vports = lpfc_create_vport_work_array(phba);
3206         if (vports != NULL) {
3207                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3208                         if (vports[i]->load_flag & FC_UNLOADING)
3209                                 continue;
3210                         shost = lpfc_shost_from_vport(vports[i]);
3211                         spin_lock_irq(shost->host_lock);
3212                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3213                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3214                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3215                         spin_unlock_irq(shost->host_lock);
3216
3217                         shost = lpfc_shost_from_vport(vports[i]);
3218                         list_for_each_entry_safe(ndlp, next_ndlp,
3219                                                  &vports[i]->fc_nodes,
3220                                                  nlp_listp) {
3221                                 if (!NLP_CHK_NODE_ACT(ndlp))
3222                                         continue;
3223                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3224                                         continue;
3225                                 if (ndlp->nlp_type & NLP_FABRIC) {
3226                                         lpfc_disc_state_machine(vports[i], ndlp,
3227                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3228                                         lpfc_disc_state_machine(vports[i], ndlp,
3229                                                 NULL, NLP_EVT_DEVICE_RM);
3230                                 }
3231                                 spin_lock_irq(shost->host_lock);
3232                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3233                                 spin_unlock_irq(shost->host_lock);
3234                                 /*
3235                                  * Whenever an SLI4 port goes offline, free the
3236                                  * RPI. Get a new RPI when the adapter port
3237                                  * comes back online.
3238                                  */
3239                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3240                                         lpfc_printf_vlog(ndlp->vport,
3241                                                          KERN_INFO, LOG_NODE,
3242                                                          "0011 lpfc_offline: "
3243                                                          "ndlp:x%p did %x "
3244                                                          "usgmap:x%x rpi:%x\n",
3245                                                          ndlp, ndlp->nlp_DID,
3246                                                          ndlp->nlp_usg_map,
3247                                                          ndlp->nlp_rpi);
3248
3249                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3250                                 }
3251                                 lpfc_unreg_rpi(vports[i], ndlp);
3252                         }
3253                 }
3254         }
3255         lpfc_destroy_vport_work_array(phba, vports);
3256
3257         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3258
3259         if (phba->wq)
3260                 flush_workqueue(phba->wq);
3261 }
3262
3263 /**
3264  * lpfc_offline - Bring a HBA offline
3265  * @phba: pointer to lpfc hba data structure.
3266  *
3267  * This routine actually brings a HBA offline. It stops all the timers
3268  * associated with the HBA, brings down the SLI layer, and eventually
3269  * marks the HBA as in offline state for the upper layer protocol.
3270  **/
3271 void
3272 lpfc_offline(struct lpfc_hba *phba)
3273 {
3274         struct Scsi_Host  *shost;
3275         struct lpfc_vport **vports;
3276         int i;
3277
3278         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3279                 return;
3280
3281         /* stop port and all timers associated with this hba */
3282         lpfc_stop_port(phba);
3283
3284         /* Tear down the local and target port registrations.  The
3285          * nvme transports need to cleanup.
3286          */
3287         lpfc_nvmet_destroy_targetport(phba);
3288         lpfc_nvme_destroy_localport(phba->pport);
3289
3290         vports = lpfc_create_vport_work_array(phba);
3291         if (vports != NULL)
3292                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3293                         lpfc_stop_vport_timers(vports[i]);
3294         lpfc_destroy_vport_work_array(phba, vports);
3295         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3296                         "0460 Bring Adapter offline\n");
3297         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3298            now.  */
3299         lpfc_sli_hba_down(phba);
3300         spin_lock_irq(&phba->hbalock);
3301         phba->work_ha = 0;
3302         spin_unlock_irq(&phba->hbalock);
3303         vports = lpfc_create_vport_work_array(phba);
3304         if (vports != NULL)
3305                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3306                         shost = lpfc_shost_from_vport(vports[i]);
3307                         spin_lock_irq(shost->host_lock);
3308                         vports[i]->work_port_events = 0;
3309                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3310                         spin_unlock_irq(shost->host_lock);
3311                 }
3312         lpfc_destroy_vport_work_array(phba, vports);
3313 }
3314
3315 /**
3316  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3317  * @phba: pointer to lpfc hba data structure.
3318  *
3319  * This routine is to free all the SCSI buffers and IOCBs from the driver
3320  * list back to kernel. It is called from lpfc_pci_remove_one to free
3321  * the internal resources before the device is removed from the system.
3322  **/
3323 static void
3324 lpfc_scsi_free(struct lpfc_hba *phba)
3325 {
3326         struct lpfc_scsi_buf *sb, *sb_next;
3327
3328         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3329                 return;
3330
3331         spin_lock_irq(&phba->hbalock);
3332
3333         /* Release all the lpfc_scsi_bufs maintained by this host. */
3334
3335         spin_lock(&phba->scsi_buf_list_put_lock);
3336         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3337                                  list) {
3338                 list_del(&sb->list);
3339                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3340                               sb->dma_handle);
3341                 kfree(sb);
3342                 phba->total_scsi_bufs--;
3343         }
3344         spin_unlock(&phba->scsi_buf_list_put_lock);
3345
3346         spin_lock(&phba->scsi_buf_list_get_lock);
3347         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3348                                  list) {
3349                 list_del(&sb->list);
3350                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3351                               sb->dma_handle);
3352                 kfree(sb);
3353                 phba->total_scsi_bufs--;
3354         }
3355         spin_unlock(&phba->scsi_buf_list_get_lock);
3356         spin_unlock_irq(&phba->hbalock);
3357 }
3358 /**
3359  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3360  * @phba: pointer to lpfc hba data structure.
3361  *
3362  * This routine is to free all the NVME buffers and IOCBs from the driver
3363  * list back to kernel. It is called from lpfc_pci_remove_one to free
3364  * the internal resources before the device is removed from the system.
3365  **/
3366 static void
3367 lpfc_nvme_free(struct lpfc_hba *phba)
3368 {
3369         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3370
3371         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3372                 return;
3373
3374         spin_lock_irq(&phba->hbalock);
3375
3376         /* Release all the lpfc_nvme_bufs maintained by this host. */
3377         spin_lock(&phba->nvme_buf_list_put_lock);
3378         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3379                                  &phba->lpfc_nvme_buf_list_put, list) {
3380                 list_del(&lpfc_ncmd->list);
3381                 phba->put_nvme_bufs--;
3382                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3383                               lpfc_ncmd->dma_handle);
3384                 kfree(lpfc_ncmd);
3385                 phba->total_nvme_bufs--;
3386         }
3387         spin_unlock(&phba->nvme_buf_list_put_lock);
3388
3389         spin_lock(&phba->nvme_buf_list_get_lock);
3390         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3391                                  &phba->lpfc_nvme_buf_list_get, list) {
3392                 list_del(&lpfc_ncmd->list);
3393                 phba->get_nvme_bufs--;
3394                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3395                               lpfc_ncmd->dma_handle);
3396                 kfree(lpfc_ncmd);
3397                 phba->total_nvme_bufs--;
3398         }
3399         spin_unlock(&phba->nvme_buf_list_get_lock);
3400         spin_unlock_irq(&phba->hbalock);
3401 }
3402 /**
3403  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3404  * @phba: pointer to lpfc hba data structure.
3405  *
3406  * This routine first calculates the sizes of the current els and allocated
3407  * scsi sgl lists, and then goes through all sgls to updates the physical
3408  * XRIs assigned due to port function reset. During port initialization, the
3409  * current els and allocated scsi sgl lists are 0s.
3410  *
3411  * Return codes
3412  *   0 - successful (for now, it always returns 0)
3413  **/
3414 int
3415 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3416 {
3417         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3418         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3419         LIST_HEAD(els_sgl_list);
3420         int rc;
3421
3422         /*
3423          * update on pci function's els xri-sgl list
3424          */
3425         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3426
3427         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3428                 /* els xri-sgl expanded */
3429                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3430                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3431                                 "3157 ELS xri-sgl count increased from "
3432                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3433                                 els_xri_cnt);
3434                 /* allocate the additional els sgls */
3435                 for (i = 0; i < xri_cnt; i++) {
3436                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3437                                              GFP_KERNEL);
3438                         if (sglq_entry == NULL) {
3439                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3440                                                 "2562 Failure to allocate an "
3441                                                 "ELS sgl entry:%d\n", i);
3442                                 rc = -ENOMEM;
3443                                 goto out_free_mem;
3444                         }
3445                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3446                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3447                                                            &sglq_entry->phys);
3448                         if (sglq_entry->virt == NULL) {
3449                                 kfree(sglq_entry);
3450                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3451                                                 "2563 Failure to allocate an "
3452                                                 "ELS mbuf:%d\n", i);
3453                                 rc = -ENOMEM;
3454                                 goto out_free_mem;
3455                         }
3456                         sglq_entry->sgl = sglq_entry->virt;
3457                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3458                         sglq_entry->state = SGL_FREED;
3459                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3460                 }
3461                 spin_lock_irq(&phba->hbalock);
3462                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3463                 list_splice_init(&els_sgl_list,
3464                                  &phba->sli4_hba.lpfc_els_sgl_list);
3465                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3466                 spin_unlock_irq(&phba->hbalock);
3467         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3468                 /* els xri-sgl shrinked */
3469                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3470                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3471                                 "3158 ELS xri-sgl count decreased from "
3472                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3473                                 els_xri_cnt);
3474                 spin_lock_irq(&phba->hbalock);
3475                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3476                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3477                                  &els_sgl_list);
3478                 /* release extra els sgls from list */
3479                 for (i = 0; i < xri_cnt; i++) {
3480                         list_remove_head(&els_sgl_list,
3481                                          sglq_entry, struct lpfc_sglq, list);
3482                         if (sglq_entry) {
3483                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3484                                                  sglq_entry->phys);
3485                                 kfree(sglq_entry);
3486                         }
3487                 }
3488                 list_splice_init(&els_sgl_list,
3489                                  &phba->sli4_hba.lpfc_els_sgl_list);
3490                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3491                 spin_unlock_irq(&phba->hbalock);
3492         } else
3493                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3494                                 "3163 ELS xri-sgl count unchanged: %d\n",
3495                                 els_xri_cnt);
3496         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3497
3498         /* update xris to els sgls on the list */
3499         sglq_entry = NULL;
3500         sglq_entry_next = NULL;
3501         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3502                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3503                 lxri = lpfc_sli4_next_xritag(phba);
3504                 if (lxri == NO_XRI) {
3505                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3506                                         "2400 Failed to allocate xri for "
3507                                         "ELS sgl\n");
3508                         rc = -ENOMEM;
3509                         goto out_free_mem;
3510                 }
3511                 sglq_entry->sli4_lxritag = lxri;
3512                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3513         }
3514         return 0;
3515
3516 out_free_mem:
3517         lpfc_free_els_sgl_list(phba);
3518         return rc;
3519 }
3520
3521 /**
3522  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3523  * @phba: pointer to lpfc hba data structure.
3524  *
3525  * This routine first calculates the sizes of the current els and allocated
3526  * scsi sgl lists, and then goes through all sgls to updates the physical
3527  * XRIs assigned due to port function reset. During port initialization, the
3528  * current els and allocated scsi sgl lists are 0s.
3529  *
3530  * Return codes
3531  *   0 - successful (for now, it always returns 0)
3532  **/
3533 int
3534 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3535 {
3536         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3537         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3538         uint16_t nvmet_xri_cnt;
3539         LIST_HEAD(nvmet_sgl_list);
3540         int rc;
3541
3542         /*
3543          * update on pci function's nvmet xri-sgl list
3544          */
3545         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3546
3547         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3548         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3549         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3550                 /* els xri-sgl expanded */
3551                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3552                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3553                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3554                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3555                 /* allocate the additional nvmet sgls */
3556                 for (i = 0; i < xri_cnt; i++) {
3557                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3558                                              GFP_KERNEL);
3559                         if (sglq_entry == NULL) {
3560                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3561                                                 "6303 Failure to allocate an "
3562                                                 "NVMET sgl entry:%d\n", i);
3563                                 rc = -ENOMEM;
3564                                 goto out_free_mem;
3565                         }
3566                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3567                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3568                                                            &sglq_entry->phys);
3569                         if (sglq_entry->virt == NULL) {
3570                                 kfree(sglq_entry);
3571                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3572                                                 "6304 Failure to allocate an "
3573                                                 "NVMET buf:%d\n", i);
3574                                 rc = -ENOMEM;
3575                                 goto out_free_mem;
3576                         }
3577                         sglq_entry->sgl = sglq_entry->virt;
3578                         memset(sglq_entry->sgl, 0,
3579                                phba->cfg_sg_dma_buf_size);
3580                         sglq_entry->state = SGL_FREED;
3581                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3582                 }
3583                 spin_lock_irq(&phba->hbalock);
3584                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3585                 list_splice_init(&nvmet_sgl_list,
3586                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3587                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3588                 spin_unlock_irq(&phba->hbalock);
3589         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3590                 /* nvmet xri-sgl shrunk */
3591                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3592                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3593                                 "6305 NVMET xri-sgl count decreased from "
3594                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3595                                 nvmet_xri_cnt);
3596                 spin_lock_irq(&phba->hbalock);
3597                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3598                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3599                                  &nvmet_sgl_list);
3600                 /* release extra nvmet sgls from list */
3601                 for (i = 0; i < xri_cnt; i++) {
3602                         list_remove_head(&nvmet_sgl_list,
3603                                          sglq_entry, struct lpfc_sglq, list);
3604                         if (sglq_entry) {
3605                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3606                                                     sglq_entry->phys);
3607                                 kfree(sglq_entry);
3608                         }
3609                 }
3610                 list_splice_init(&nvmet_sgl_list,
3611                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3612                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3613                 spin_unlock_irq(&phba->hbalock);
3614         } else
3615                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3616                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3617                                 nvmet_xri_cnt);
3618         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3619
3620         /* update xris to nvmet sgls on the list */
3621         sglq_entry = NULL;
3622         sglq_entry_next = NULL;
3623         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3624                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3625                 lxri = lpfc_sli4_next_xritag(phba);
3626                 if (lxri == NO_XRI) {
3627                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3628                                         "6307 Failed to allocate xri for "
3629                                         "NVMET sgl\n");
3630                         rc = -ENOMEM;
3631                         goto out_free_mem;
3632                 }
3633                 sglq_entry->sli4_lxritag = lxri;
3634                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3635         }
3636         return 0;
3637
3638 out_free_mem:
3639         lpfc_free_nvmet_sgl_list(phba);
3640         return rc;
3641 }
3642
3643 /**
3644  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3645  * @phba: pointer to lpfc hba data structure.
3646  *
3647  * This routine first calculates the sizes of the current els and allocated
3648  * scsi sgl lists, and then goes through all sgls to updates the physical
3649  * XRIs assigned due to port function reset. During port initialization, the
3650  * current els and allocated scsi sgl lists are 0s.
3651  *
3652  * Return codes
3653  *   0 - successful (for now, it always returns 0)
3654  **/
3655 int
3656 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3657 {
3658         struct lpfc_scsi_buf *psb, *psb_next;
3659         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3660         LIST_HEAD(scsi_sgl_list);
3661         int rc;
3662
3663         /*
3664          * update on pci function's els xri-sgl list
3665          */
3666         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3667         phba->total_scsi_bufs = 0;
3668
3669         /*
3670          * update on pci function's allocated scsi xri-sgl list
3671          */
3672         /* maximum number of xris available for scsi buffers */
3673         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3674                                       els_xri_cnt;
3675
3676         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3677                 return 0;
3678
3679         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3680                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3681                         (phba->sli4_hba.scsi_xri_max *
3682                          phba->cfg_xri_split) / 100;
3683
3684         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3685         spin_lock(&phba->scsi_buf_list_put_lock);
3686         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3687         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3688         spin_unlock(&phba->scsi_buf_list_put_lock);
3689         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3690
3691         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3692                         "6060 Current allocated SCSI xri-sgl count:%d, "
3693                         "maximum  SCSI xri count:%d (split:%d)\n",
3694                         phba->sli4_hba.scsi_xri_cnt,
3695                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3696
3697         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3698                 /* max scsi xri shrinked below the allocated scsi buffers */
3699                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3700                                         phba->sli4_hba.scsi_xri_max;
3701                 /* release the extra allocated scsi buffers */
3702                 for (i = 0; i < scsi_xri_cnt; i++) {
3703                         list_remove_head(&scsi_sgl_list, psb,
3704                                          struct lpfc_scsi_buf, list);
3705                         if (psb) {
3706                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3707                                               psb->data, psb->dma_handle);
3708                                 kfree(psb);
3709                         }
3710                 }
3711                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3712                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3713                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3714         }
3715
3716         /* update xris associated to remaining allocated scsi buffers */
3717         psb = NULL;
3718         psb_next = NULL;
3719         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3720                 lxri = lpfc_sli4_next_xritag(phba);
3721                 if (lxri == NO_XRI) {
3722                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3723                                         "2560 Failed to allocate xri for "
3724                                         "scsi buffer\n");
3725                         rc = -ENOMEM;
3726                         goto out_free_mem;
3727                 }
3728                 psb->cur_iocbq.sli4_lxritag = lxri;
3729                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3730         }
3731         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3732         spin_lock(&phba->scsi_buf_list_put_lock);
3733         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3734         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3735         spin_unlock(&phba->scsi_buf_list_put_lock);
3736         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3737         return 0;
3738
3739 out_free_mem:
3740         lpfc_scsi_free(phba);
3741         return rc;
3742 }
3743
3744 static uint64_t
3745 lpfc_get_wwpn(struct lpfc_hba *phba)
3746 {
3747         uint64_t wwn;
3748         int rc;
3749         LPFC_MBOXQ_t *mboxq;
3750         MAILBOX_t *mb;
3751
3752         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3753                                                 GFP_KERNEL);
3754         if (!mboxq)
3755                 return (uint64_t)-1;
3756
3757         /* First get WWN of HBA instance */
3758         lpfc_read_nv(phba, mboxq);
3759         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3760         if (rc != MBX_SUCCESS) {
3761                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3762                                 "6019 Mailbox failed , mbxCmd x%x "
3763                                 "READ_NV, mbxStatus x%x\n",
3764                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3765                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3766                 mempool_free(mboxq, phba->mbox_mem_pool);
3767                 return (uint64_t) -1;
3768         }
3769         mb = &mboxq->u.mb;
3770         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3771         /* wwn is WWPN of HBA instance */
3772         mempool_free(mboxq, phba->mbox_mem_pool);
3773         if (phba->sli_rev == LPFC_SLI_REV4)
3774                 return be64_to_cpu(wwn);
3775         else
3776                 return rol64(wwn, 32);
3777 }
3778
3779 /**
3780  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3781  * @phba: pointer to lpfc hba data structure.
3782  *
3783  * This routine first calculates the sizes of the current els and allocated
3784  * scsi sgl lists, and then goes through all sgls to updates the physical
3785  * XRIs assigned due to port function reset. During port initialization, the
3786  * current els and allocated scsi sgl lists are 0s.
3787  *
3788  * Return codes
3789  *   0 - successful (for now, it always returns 0)
3790  **/
3791 int
3792 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3793 {
3794         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3795         uint16_t i, lxri, els_xri_cnt;
3796         uint16_t nvme_xri_cnt, nvme_xri_max;
3797         LIST_HEAD(nvme_sgl_list);
3798         int rc, cnt;
3799
3800         phba->total_nvme_bufs = 0;
3801         phba->get_nvme_bufs = 0;
3802         phba->put_nvme_bufs = 0;
3803
3804         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3805                 return 0;
3806         /*
3807          * update on pci function's allocated nvme xri-sgl list
3808          */
3809
3810         /* maximum number of xris available for nvme buffers */
3811         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3812         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3813         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3814         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3815
3816         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3817                         "6074 Current allocated NVME xri-sgl count:%d, "
3818                         "maximum  NVME xri count:%d\n",
3819                         phba->sli4_hba.nvme_xri_cnt,
3820                         phba->sli4_hba.nvme_xri_max);
3821
3822         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3823         spin_lock(&phba->nvme_buf_list_put_lock);
3824         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3825         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3826         cnt = phba->get_nvme_bufs + phba->put_nvme_bufs;
3827         phba->get_nvme_bufs = 0;
3828         phba->put_nvme_bufs = 0;
3829         spin_unlock(&phba->nvme_buf_list_put_lock);
3830         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3831
3832         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3833                 /* max nvme xri shrunk below the allocated nvme buffers */
3834                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3835                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3836                                         phba->sli4_hba.nvme_xri_max;
3837                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3838                 /* release the extra allocated nvme buffers */
3839                 for (i = 0; i < nvme_xri_cnt; i++) {
3840                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3841                                          struct lpfc_nvme_buf, list);
3842                         if (lpfc_ncmd) {
3843                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3844                                               lpfc_ncmd->data,
3845                                               lpfc_ncmd->dma_handle);
3846                                 kfree(lpfc_ncmd);
3847                         }
3848                 }
3849                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3850                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3851                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3852         }
3853
3854         /* update xris associated to remaining allocated nvme buffers */
3855         lpfc_ncmd = NULL;
3856         lpfc_ncmd_next = NULL;
3857         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3858                                  &nvme_sgl_list, list) {
3859                 lxri = lpfc_sli4_next_xritag(phba);
3860                 if (lxri == NO_XRI) {
3861                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3862                                         "6075 Failed to allocate xri for "
3863                                         "nvme buffer\n");
3864                         rc = -ENOMEM;
3865                         goto out_free_mem;
3866                 }
3867                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3868                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3869         }
3870         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3871         spin_lock(&phba->nvme_buf_list_put_lock);
3872         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3873         phba->get_nvme_bufs = cnt;
3874         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3875         spin_unlock(&phba->nvme_buf_list_put_lock);
3876         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3877         return 0;
3878
3879 out_free_mem:
3880         lpfc_nvme_free(phba);
3881         return rc;
3882 }
3883
3884 /**
3885  * lpfc_create_port - Create an FC port
3886  * @phba: pointer to lpfc hba data structure.
3887  * @instance: a unique integer ID to this FC port.
3888  * @dev: pointer to the device data structure.
3889  *
3890  * This routine creates a FC port for the upper layer protocol. The FC port
3891  * can be created on top of either a physical port or a virtual port provided
3892  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3893  * and associates the FC port created before adding the shost into the SCSI
3894  * layer.
3895  *
3896  * Return codes
3897  *   @vport - pointer to the virtual N_Port data structure.
3898  *   NULL - port create failed.
3899  **/
3900 struct lpfc_vport *
3901 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3902 {
3903         struct lpfc_vport *vport;
3904         struct Scsi_Host  *shost = NULL;
3905         int error = 0;
3906         int i;
3907         uint64_t wwn;
3908         bool use_no_reset_hba = false;
3909         int rc;
3910
3911         if (lpfc_no_hba_reset_cnt) {
3912                 if (phba->sli_rev < LPFC_SLI_REV4 &&
3913                     dev == &phba->pcidev->dev) {
3914                         /* Reset the port first */
3915                         lpfc_sli_brdrestart(phba);
3916                         rc = lpfc_sli_chipset_init(phba);
3917                         if (rc)
3918                                 return NULL;
3919                 }
3920                 wwn = lpfc_get_wwpn(phba);
3921         }
3922
3923         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3924                 if (wwn == lpfc_no_hba_reset[i]) {
3925                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3926                                         "6020 Setting use_no_reset port=%llx\n",
3927                                         wwn);
3928                         use_no_reset_hba = true;
3929                         break;
3930                 }
3931         }
3932
3933         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3934                 if (dev != &phba->pcidev->dev) {
3935                         shost = scsi_host_alloc(&lpfc_vport_template,
3936                                                 sizeof(struct lpfc_vport));
3937                 } else {
3938                         if (!use_no_reset_hba)
3939                                 shost = scsi_host_alloc(&lpfc_template,
3940                                                 sizeof(struct lpfc_vport));
3941                         else
3942                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3943                                                 sizeof(struct lpfc_vport));
3944                 }
3945         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3946                 shost = scsi_host_alloc(&lpfc_template_nvme,
3947                                         sizeof(struct lpfc_vport));
3948         }
3949         if (!shost)
3950                 goto out;
3951
3952         vport = (struct lpfc_vport *) shost->hostdata;
3953         vport->phba = phba;
3954         vport->load_flag |= FC_LOADING;
3955         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3956         vport->fc_rscn_flush = 0;
3957         lpfc_get_vport_cfgparam(vport);
3958
3959         shost->unique_id = instance;
3960         shost->max_id = LPFC_MAX_TARGET;
3961         shost->max_lun = vport->cfg_max_luns;
3962         shost->this_id = -1;
3963         shost->max_cmd_len = 16;
3964         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3965         if (phba->sli_rev == LPFC_SLI_REV4) {
3966                 shost->dma_boundary =
3967                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3968                 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
3969         }
3970
3971         /*
3972          * Set initial can_queue value since 0 is no longer supported and
3973          * scsi_add_host will fail. This will be adjusted later based on the
3974          * max xri value determined in hba setup.
3975          */
3976         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3977         if (dev != &phba->pcidev->dev) {
3978                 shost->transportt = lpfc_vport_transport_template;
3979                 vport->port_type = LPFC_NPIV_PORT;
3980         } else {
3981                 shost->transportt = lpfc_transport_template;
3982                 vport->port_type = LPFC_PHYSICAL_PORT;
3983         }
3984
3985         /* Initialize all internally managed lists. */
3986         INIT_LIST_HEAD(&vport->fc_nodes);
3987         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3988         spin_lock_init(&vport->work_port_lock);
3989
3990         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3991
3992         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3993
3994         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3995
3996         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3997         if (error)
3998                 goto out_put_shost;
3999
4000         spin_lock_irq(&phba->port_list_lock);
4001         list_add_tail(&vport->listentry, &phba->port_list);
4002         spin_unlock_irq(&phba->port_list_lock);
4003         return vport;
4004
4005 out_put_shost:
4006         scsi_host_put(shost);
4007 out:
4008         return NULL;
4009 }
4010
4011 /**
4012  * destroy_port -  destroy an FC port
4013  * @vport: pointer to an lpfc virtual N_Port data structure.
4014  *
4015  * This routine destroys a FC port from the upper layer protocol. All the
4016  * resources associated with the port are released.
4017  **/
4018 void
4019 destroy_port(struct lpfc_vport *vport)
4020 {
4021         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4022         struct lpfc_hba  *phba = vport->phba;
4023
4024         lpfc_debugfs_terminate(vport);
4025         fc_remove_host(shost);
4026         scsi_remove_host(shost);
4027
4028         spin_lock_irq(&phba->port_list_lock);
4029         list_del_init(&vport->listentry);
4030         spin_unlock_irq(&phba->port_list_lock);
4031
4032         lpfc_cleanup(vport);
4033         return;
4034 }
4035
4036 /**
4037  * lpfc_get_instance - Get a unique integer ID
4038  *
4039  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4040  * uses the kernel idr facility to perform the task.
4041  *
4042  * Return codes:
4043  *   instance - a unique integer ID allocated as the new instance.
4044  *   -1 - lpfc get instance failed.
4045  **/
4046 int
4047 lpfc_get_instance(void)
4048 {
4049         int ret;
4050
4051         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4052         return ret < 0 ? -1 : ret;
4053 }
4054
4055 /**
4056  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4057  * @shost: pointer to SCSI host data structure.
4058  * @time: elapsed time of the scan in jiffies.
4059  *
4060  * This routine is called by the SCSI layer with a SCSI host to determine
4061  * whether the scan host is finished.
4062  *
4063  * Note: there is no scan_start function as adapter initialization will have
4064  * asynchronously kicked off the link initialization.
4065  *
4066  * Return codes
4067  *   0 - SCSI host scan is not over yet.
4068  *   1 - SCSI host scan is over.
4069  **/
4070 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4071 {
4072         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4073         struct lpfc_hba   *phba = vport->phba;
4074         int stat = 0;
4075
4076         spin_lock_irq(shost->host_lock);
4077
4078         if (vport->load_flag & FC_UNLOADING) {
4079                 stat = 1;
4080                 goto finished;
4081         }
4082         if (time >= msecs_to_jiffies(30 * 1000)) {
4083                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4084                                 "0461 Scanning longer than 30 "
4085                                 "seconds.  Continuing initialization\n");
4086                 stat = 1;
4087                 goto finished;
4088         }
4089         if (time >= msecs_to_jiffies(15 * 1000) &&
4090             phba->link_state <= LPFC_LINK_DOWN) {
4091                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4092                                 "0465 Link down longer than 15 "
4093                                 "seconds.  Continuing initialization\n");
4094                 stat = 1;
4095                 goto finished;
4096         }
4097
4098         if (vport->port_state != LPFC_VPORT_READY)
4099                 goto finished;
4100         if (vport->num_disc_nodes || vport->fc_prli_sent)
4101                 goto finished;
4102         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4103                 goto finished;
4104         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4105                 goto finished;
4106
4107         stat = 1;
4108
4109 finished:
4110         spin_unlock_irq(shost->host_lock);
4111         return stat;
4112 }
4113
4114 void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4115 {
4116         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4117         struct lpfc_hba   *phba = vport->phba;
4118
4119         fc_host_supported_speeds(shost) = 0;
4120         if (phba->lmt & LMT_128Gb)
4121                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4122         if (phba->lmt & LMT_64Gb)
4123                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4124         if (phba->lmt & LMT_32Gb)
4125                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4126         if (phba->lmt & LMT_16Gb)
4127                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4128         if (phba->lmt & LMT_10Gb)
4129                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4130         if (phba->lmt & LMT_8Gb)
4131                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4132         if (phba->lmt & LMT_4Gb)
4133                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4134         if (phba->lmt & LMT_2Gb)
4135                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4136         if (phba->lmt & LMT_1Gb)
4137                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4138 }
4139
4140 /**
4141  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4142  * @shost: pointer to SCSI host data structure.
4143  *
4144  * This routine initializes a given SCSI host attributes on a FC port. The
4145  * SCSI host can be either on top of a physical port or a virtual port.
4146  **/
4147 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4148 {
4149         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4150         struct lpfc_hba   *phba = vport->phba;
4151         /*
4152          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4153          */
4154
4155         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4156         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4157         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4158
4159         memset(fc_host_supported_fc4s(shost), 0,
4160                sizeof(fc_host_supported_fc4s(shost)));
4161         fc_host_supported_fc4s(shost)[2] = 1;
4162         fc_host_supported_fc4s(shost)[7] = 1;
4163
4164         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4165                                  sizeof fc_host_symbolic_name(shost));
4166
4167         lpfc_host_supported_speeds_set(shost);
4168
4169         fc_host_maxframe_size(shost) =
4170                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4171                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4172
4173         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4174
4175         /* This value is also unchanging */
4176         memset(fc_host_active_fc4s(shost), 0,
4177                sizeof(fc_host_active_fc4s(shost)));
4178         fc_host_active_fc4s(shost)[2] = 1;
4179         fc_host_active_fc4s(shost)[7] = 1;
4180
4181         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4182         spin_lock_irq(shost->host_lock);
4183         vport->load_flag &= ~FC_LOADING;
4184         spin_unlock_irq(shost->host_lock);
4185 }
4186
4187 /**
4188  * lpfc_stop_port_s3 - Stop SLI3 device port
4189  * @phba: pointer to lpfc hba data structure.
4190  *
4191  * This routine is invoked to stop an SLI3 device port, it stops the device
4192  * from generating interrupts and stops the device driver's timers for the
4193  * device.
4194  **/
4195 static void
4196 lpfc_stop_port_s3(struct lpfc_hba *phba)
4197 {
4198         /* Clear all interrupt enable conditions */
4199         writel(0, phba->HCregaddr);
4200         readl(phba->HCregaddr); /* flush */
4201         /* Clear all pending interrupts */
4202         writel(0xffffffff, phba->HAregaddr);
4203         readl(phba->HAregaddr); /* flush */
4204
4205         /* Reset some HBA SLI setup states */
4206         lpfc_stop_hba_timers(phba);
4207         phba->pport->work_port_events = 0;
4208 }
4209
4210 /**
4211  * lpfc_stop_port_s4 - Stop SLI4 device port
4212  * @phba: pointer to lpfc hba data structure.
4213  *
4214  * This routine is invoked to stop an SLI4 device port, it stops the device
4215  * from generating interrupts and stops the device driver's timers for the
4216  * device.
4217  **/
4218 static void
4219 lpfc_stop_port_s4(struct lpfc_hba *phba)
4220 {
4221         /* Reset some HBA SLI4 setup states */
4222         lpfc_stop_hba_timers(phba);
4223         phba->pport->work_port_events = 0;
4224         phba->sli4_hba.intr_enable = 0;
4225 }
4226
4227 /**
4228  * lpfc_stop_port - Wrapper function for stopping hba port
4229  * @phba: Pointer to HBA context object.
4230  *
4231  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4232  * the API jump table function pointer from the lpfc_hba struct.
4233  **/
4234 void
4235 lpfc_stop_port(struct lpfc_hba *phba)
4236 {
4237         phba->lpfc_stop_port(phba);
4238
4239         if (phba->wq)
4240                 flush_workqueue(phba->wq);
4241 }
4242
4243 /**
4244  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4245  * @phba: Pointer to hba for which this call is being executed.
4246  *
4247  * This routine starts the timer waiting for the FCF rediscovery to complete.
4248  **/
4249 void
4250 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4251 {
4252         unsigned long fcf_redisc_wait_tmo =
4253                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4254         /* Start fcf rediscovery wait period timer */
4255         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4256         spin_lock_irq(&phba->hbalock);
4257         /* Allow action to new fcf asynchronous event */
4258         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4259         /* Mark the FCF rediscovery pending state */
4260         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4261         spin_unlock_irq(&phba->hbalock);
4262 }
4263
4264 /**
4265  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4266  * @ptr: Map to lpfc_hba data structure pointer.
4267  *
4268  * This routine is invoked when waiting for FCF table rediscover has been
4269  * timed out. If new FCF record(s) has (have) been discovered during the
4270  * wait period, a new FCF event shall be added to the FCOE async event
4271  * list, and then worker thread shall be waked up for processing from the
4272  * worker thread context.
4273  **/
4274 static void
4275 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4276 {
4277         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4278
4279         /* Don't send FCF rediscovery event if timer cancelled */
4280         spin_lock_irq(&phba->hbalock);
4281         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4282                 spin_unlock_irq(&phba->hbalock);
4283                 return;
4284         }
4285         /* Clear FCF rediscovery timer pending flag */
4286         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4287         /* FCF rediscovery event to worker thread */
4288         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4289         spin_unlock_irq(&phba->hbalock);
4290         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4291                         "2776 FCF rediscover quiescent timer expired\n");
4292         /* wake up worker thread */
4293         lpfc_worker_wake_up(phba);
4294 }
4295
4296 /**
4297  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4298  * @phba: pointer to lpfc hba data structure.
4299  * @acqe_link: pointer to the async link completion queue entry.
4300  *
4301  * This routine is to parse the SLI4 link-attention link fault code.
4302  **/
4303 static void
4304 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4305                            struct lpfc_acqe_link *acqe_link)
4306 {
4307         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4308         case LPFC_ASYNC_LINK_FAULT_NONE:
4309         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4310         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4311         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4312                 break;
4313         default:
4314                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4315                                 "0398 Unknown link fault code: x%x\n",
4316                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4317                 break;
4318         }
4319 }
4320
4321 /**
4322  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4323  * @phba: pointer to lpfc hba data structure.
4324  * @acqe_link: pointer to the async link completion queue entry.
4325  *
4326  * This routine is to parse the SLI4 link attention type and translate it
4327  * into the base driver's link attention type coding.
4328  *
4329  * Return: Link attention type in terms of base driver's coding.
4330  **/
4331 static uint8_t
4332 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4333                           struct lpfc_acqe_link *acqe_link)
4334 {
4335         uint8_t att_type;
4336
4337         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4338         case LPFC_ASYNC_LINK_STATUS_DOWN:
4339         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4340                 att_type = LPFC_ATT_LINK_DOWN;
4341                 break;
4342         case LPFC_ASYNC_LINK_STATUS_UP:
4343                 /* Ignore physical link up events - wait for logical link up */
4344                 att_type = LPFC_ATT_RESERVED;
4345                 break;
4346         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4347                 att_type = LPFC_ATT_LINK_UP;
4348                 break;
4349         default:
4350                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4351                                 "0399 Invalid link attention type: x%x\n",
4352                                 bf_get(lpfc_acqe_link_status, acqe_link));
4353                 att_type = LPFC_ATT_RESERVED;
4354                 break;
4355         }
4356         return att_type;
4357 }
4358
4359 /**
4360  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4361  * @phba: pointer to lpfc hba data structure.
4362  *
4363  * This routine is to get an SLI3 FC port's link speed in Mbps.
4364  *
4365  * Return: link speed in terms of Mbps.
4366  **/
4367 uint32_t
4368 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4369 {
4370         uint32_t link_speed;
4371
4372         if (!lpfc_is_link_up(phba))
4373                 return 0;
4374
4375         if (phba->sli_rev <= LPFC_SLI_REV3) {
4376                 switch (phba->fc_linkspeed) {
4377                 case LPFC_LINK_SPEED_1GHZ:
4378                         link_speed = 1000;
4379                         break;
4380                 case LPFC_LINK_SPEED_2GHZ:
4381                         link_speed = 2000;
4382                         break;
4383                 case LPFC_LINK_SPEED_4GHZ:
4384                         link_speed = 4000;
4385                         break;
4386                 case LPFC_LINK_SPEED_8GHZ:
4387                         link_speed = 8000;
4388                         break;
4389                 case LPFC_LINK_SPEED_10GHZ:
4390                         link_speed = 10000;
4391                         break;
4392                 case LPFC_LINK_SPEED_16GHZ:
4393                         link_speed = 16000;
4394                         break;
4395                 default:
4396                         link_speed = 0;
4397                 }
4398         } else {
4399                 if (phba->sli4_hba.link_state.logical_speed)
4400                         link_speed =
4401                               phba->sli4_hba.link_state.logical_speed;
4402                 else
4403                         link_speed = phba->sli4_hba.link_state.speed;
4404         }
4405         return link_speed;
4406 }
4407
4408 /**
4409  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4410  * @phba: pointer to lpfc hba data structure.
4411  * @evt_code: asynchronous event code.
4412  * @speed_code: asynchronous event link speed code.
4413  *
4414  * This routine is to parse the giving SLI4 async event link speed code into
4415  * value of Mbps for the link speed.
4416  *
4417  * Return: link speed in terms of Mbps.
4418  **/
4419 static uint32_t
4420 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4421                            uint8_t speed_code)
4422 {
4423         uint32_t port_speed;
4424
4425         switch (evt_code) {
4426         case LPFC_TRAILER_CODE_LINK:
4427                 switch (speed_code) {
4428                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4429                         port_speed = 0;
4430                         break;
4431                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4432                         port_speed = 10;
4433                         break;
4434                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4435                         port_speed = 100;
4436                         break;
4437                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4438                         port_speed = 1000;
4439                         break;
4440                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4441                         port_speed = 10000;
4442                         break;
4443                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4444                         port_speed = 20000;
4445                         break;
4446                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4447                         port_speed = 25000;
4448                         break;
4449                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4450                         port_speed = 40000;
4451                         break;
4452                 default:
4453                         port_speed = 0;
4454                 }
4455                 break;
4456         case LPFC_TRAILER_CODE_FC:
4457                 switch (speed_code) {
4458                 case LPFC_FC_LA_SPEED_UNKNOWN:
4459                         port_speed = 0;
4460                         break;
4461                 case LPFC_FC_LA_SPEED_1G:
4462                         port_speed = 1000;
4463                         break;
4464                 case LPFC_FC_LA_SPEED_2G:
4465                         port_speed = 2000;
4466                         break;
4467                 case LPFC_FC_LA_SPEED_4G:
4468                         port_speed = 4000;
4469                         break;
4470                 case LPFC_FC_LA_SPEED_8G:
4471                         port_speed = 8000;
4472                         break;
4473                 case LPFC_FC_LA_SPEED_10G:
4474                         port_speed = 10000;
4475                         break;
4476                 case LPFC_FC_LA_SPEED_16G:
4477                         port_speed = 16000;
4478                         break;
4479                 case LPFC_FC_LA_SPEED_32G:
4480                         port_speed = 32000;
4481                         break;
4482                 case LPFC_FC_LA_SPEED_64G:
4483                         port_speed = 64000;
4484                         break;
4485                 case LPFC_FC_LA_SPEED_128G:
4486                         port_speed = 128000;
4487                         break;
4488                 default:
4489                         port_speed = 0;
4490                 }
4491                 break;
4492         default:
4493                 port_speed = 0;
4494         }
4495         return port_speed;
4496 }
4497
4498 /**
4499  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4500  * @phba: pointer to lpfc hba data structure.
4501  * @acqe_link: pointer to the async link completion queue entry.
4502  *
4503  * This routine is to handle the SLI4 asynchronous FCoE link event.
4504  **/
4505 static void
4506 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4507                          struct lpfc_acqe_link *acqe_link)
4508 {
4509         struct lpfc_dmabuf *mp;
4510         LPFC_MBOXQ_t *pmb;
4511         MAILBOX_t *mb;
4512         struct lpfc_mbx_read_top *la;
4513         uint8_t att_type;
4514         int rc;
4515
4516         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4517         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4518                 return;
4519         phba->fcoe_eventtag = acqe_link->event_tag;
4520         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4521         if (!pmb) {
4522                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4523                                 "0395 The mboxq allocation failed\n");
4524                 return;
4525         }
4526         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4527         if (!mp) {
4528                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4529                                 "0396 The lpfc_dmabuf allocation failed\n");
4530                 goto out_free_pmb;
4531         }
4532         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4533         if (!mp->virt) {
4534                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4535                                 "0397 The mbuf allocation failed\n");
4536                 goto out_free_dmabuf;
4537         }
4538
4539         /* Cleanup any outstanding ELS commands */
4540         lpfc_els_flush_all_cmd(phba);
4541
4542         /* Block ELS IOCBs until we have done process link event */
4543         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4544
4545         /* Update link event statistics */
4546         phba->sli.slistat.link_event++;
4547
4548         /* Create lpfc_handle_latt mailbox command from link ACQE */
4549         lpfc_read_topology(phba, pmb, mp);
4550         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4551         pmb->vport = phba->pport;
4552
4553         /* Keep the link status for extra SLI4 state machine reference */
4554         phba->sli4_hba.link_state.speed =
4555                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4556                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4557         phba->sli4_hba.link_state.duplex =
4558                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4559         phba->sli4_hba.link_state.status =
4560                                 bf_get(lpfc_acqe_link_status, acqe_link);
4561         phba->sli4_hba.link_state.type =
4562                                 bf_get(lpfc_acqe_link_type, acqe_link);
4563         phba->sli4_hba.link_state.number =
4564                                 bf_get(lpfc_acqe_link_number, acqe_link);
4565         phba->sli4_hba.link_state.fault =
4566                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4567         phba->sli4_hba.link_state.logical_speed =
4568                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4569
4570         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4571                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4572                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4573                         "Logical speed:%dMbps Fault:%d\n",
4574                         phba->sli4_hba.link_state.speed,
4575                         phba->sli4_hba.link_state.topology,
4576                         phba->sli4_hba.link_state.status,
4577                         phba->sli4_hba.link_state.type,
4578                         phba->sli4_hba.link_state.number,
4579                         phba->sli4_hba.link_state.logical_speed,
4580                         phba->sli4_hba.link_state.fault);
4581         /*
4582          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4583          * topology info. Note: Optional for non FC-AL ports.
4584          */
4585         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4586                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4587                 if (rc == MBX_NOT_FINISHED)
4588                         goto out_free_dmabuf;
4589                 return;
4590         }
4591         /*
4592          * For FCoE Mode: fill in all the topology information we need and call
4593          * the READ_TOPOLOGY completion routine to continue without actually
4594          * sending the READ_TOPOLOGY mailbox command to the port.
4595          */
4596         /* Initialize completion status */
4597         mb = &pmb->u.mb;
4598         mb->mbxStatus = MBX_SUCCESS;
4599
4600         /* Parse port fault information field */
4601         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4602
4603         /* Parse and translate link attention fields */
4604         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4605         la->eventTag = acqe_link->event_tag;
4606         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4607         bf_set(lpfc_mbx_read_top_link_spd, la,
4608                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4609
4610         /* Fake the the following irrelvant fields */
4611         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4612         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4613         bf_set(lpfc_mbx_read_top_il, la, 0);
4614         bf_set(lpfc_mbx_read_top_pb, la, 0);
4615         bf_set(lpfc_mbx_read_top_fa, la, 0);
4616         bf_set(lpfc_mbx_read_top_mm, la, 0);
4617
4618         /* Invoke the lpfc_handle_latt mailbox command callback function */
4619         lpfc_mbx_cmpl_read_topology(phba, pmb);
4620
4621         return;
4622
4623 out_free_dmabuf:
4624         kfree(mp);
4625 out_free_pmb:
4626         mempool_free(pmb, phba->mbox_mem_pool);
4627 }
4628
4629 /**
4630  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4631  * topology.
4632  * @phba: pointer to lpfc hba data structure.
4633  * @evt_code: asynchronous event code.
4634  * @speed_code: asynchronous event link speed code.
4635  *
4636  * This routine is to parse the giving SLI4 async event link speed code into
4637  * value of Read topology link speed.
4638  *
4639  * Return: link speed in terms of Read topology.
4640  **/
4641 static uint8_t
4642 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4643 {
4644         uint8_t port_speed;
4645
4646         switch (speed_code) {
4647         case LPFC_FC_LA_SPEED_1G:
4648                 port_speed = LPFC_LINK_SPEED_1GHZ;
4649                 break;
4650         case LPFC_FC_LA_SPEED_2G:
4651                 port_speed = LPFC_LINK_SPEED_2GHZ;
4652                 break;
4653         case LPFC_FC_LA_SPEED_4G:
4654                 port_speed = LPFC_LINK_SPEED_4GHZ;
4655                 break;
4656         case LPFC_FC_LA_SPEED_8G:
4657                 port_speed = LPFC_LINK_SPEED_8GHZ;
4658                 break;
4659         case LPFC_FC_LA_SPEED_16G:
4660                 port_speed = LPFC_LINK_SPEED_16GHZ;
4661                 break;
4662         case LPFC_FC_LA_SPEED_32G:
4663                 port_speed = LPFC_LINK_SPEED_32GHZ;
4664                 break;
4665         case LPFC_FC_LA_SPEED_64G:
4666                 port_speed = LPFC_LINK_SPEED_64GHZ;
4667                 break;
4668         case LPFC_FC_LA_SPEED_128G:
4669                 port_speed = LPFC_LINK_SPEED_128GHZ;
4670                 break;
4671         case LPFC_FC_LA_SPEED_256G:
4672                 port_speed = LPFC_LINK_SPEED_256GHZ;
4673                 break;
4674         default:
4675                 port_speed = 0;
4676                 break;
4677         }
4678
4679         return port_speed;
4680 }
4681
4682 #define trunk_link_status(__idx)\
4683         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
4684                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
4685                 "Link up" : "Link down") : "NA"
4686 /* Did port __idx reported an error */
4687 #define trunk_port_fault(__idx)\
4688         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
4689                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
4690
4691 static void
4692 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
4693                               struct lpfc_acqe_fc_la *acqe_fc)
4694 {
4695         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
4696         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
4697
4698         phba->sli4_hba.link_state.speed =
4699                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4700                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4701
4702         phba->sli4_hba.link_state.logical_speed =
4703                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
4704         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
4705         phba->fc_linkspeed =
4706                  lpfc_async_link_speed_to_read_top(
4707                                 phba,
4708                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4709
4710         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
4711                 phba->trunk_link.link0.state =
4712                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
4713                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
4714                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
4715         }
4716         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
4717                 phba->trunk_link.link1.state =
4718                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
4719                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
4720                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
4721         }
4722         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
4723                 phba->trunk_link.link2.state =
4724                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
4725                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
4726                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
4727         }
4728         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
4729                 phba->trunk_link.link3.state =
4730                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
4731                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
4732                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
4733         }
4734
4735         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4736                         "2910 Async FC Trunking Event - Speed:%d\n"
4737                         "\tLogical speed:%d "
4738                         "port0: %s port1: %s port2: %s port3: %s\n",
4739                         phba->sli4_hba.link_state.speed,
4740                         phba->sli4_hba.link_state.logical_speed,
4741                         trunk_link_status(0), trunk_link_status(1),
4742                         trunk_link_status(2), trunk_link_status(3));
4743
4744         if (port_fault)
4745                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4746                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
4747                                 /*
4748                                  * SLI-4: We have only 0xA error codes
4749                                  * defined as of now. print an appropriate
4750                                  * message in case driver needs to be updated.
4751                                  */
4752                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
4753                                 "UNDEFINED. update driver." : trunk_errmsg[err],
4754                                 trunk_port_fault(0), trunk_port_fault(1),
4755                                 trunk_port_fault(2), trunk_port_fault(3));
4756 }
4757
4758
4759 /**
4760  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4761  * @phba: pointer to lpfc hba data structure.
4762  * @acqe_fc: pointer to the async fc completion queue entry.
4763  *
4764  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4765  * that the event was received and then issue a read_topology mailbox command so
4766  * that the rest of the driver will treat it the same as SLI3.
4767  **/
4768 static void
4769 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4770 {
4771         struct lpfc_dmabuf *mp;
4772         LPFC_MBOXQ_t *pmb;
4773         MAILBOX_t *mb;
4774         struct lpfc_mbx_read_top *la;
4775         int rc;
4776
4777         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4778             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4779                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4780                                 "2895 Non FC link Event detected.(%d)\n",
4781                                 bf_get(lpfc_trailer_type, acqe_fc));
4782                 return;
4783         }
4784
4785         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
4786             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
4787                 lpfc_update_trunk_link_status(phba, acqe_fc);
4788                 return;
4789         }
4790
4791         /* Keep the link status for extra SLI4 state machine reference */
4792         phba->sli4_hba.link_state.speed =
4793                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4794                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4795         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4796         phba->sli4_hba.link_state.topology =
4797                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4798         phba->sli4_hba.link_state.status =
4799                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4800         phba->sli4_hba.link_state.type =
4801                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4802         phba->sli4_hba.link_state.number =
4803                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4804         phba->sli4_hba.link_state.fault =
4805                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4806         phba->sli4_hba.link_state.logical_speed =
4807                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4808         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4809                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4810                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4811                         "%dMbps Fault:%d\n",
4812                         phba->sli4_hba.link_state.speed,
4813                         phba->sli4_hba.link_state.topology,
4814                         phba->sli4_hba.link_state.status,
4815                         phba->sli4_hba.link_state.type,
4816                         phba->sli4_hba.link_state.number,
4817                         phba->sli4_hba.link_state.logical_speed,
4818                         phba->sli4_hba.link_state.fault);
4819         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4820         if (!pmb) {
4821                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4822                                 "2897 The mboxq allocation failed\n");
4823                 return;
4824         }
4825         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4826         if (!mp) {
4827                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4828                                 "2898 The lpfc_dmabuf allocation failed\n");
4829                 goto out_free_pmb;
4830         }
4831         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4832         if (!mp->virt) {
4833                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4834                                 "2899 The mbuf allocation failed\n");
4835                 goto out_free_dmabuf;
4836         }
4837
4838         /* Cleanup any outstanding ELS commands */
4839         lpfc_els_flush_all_cmd(phba);
4840
4841         /* Block ELS IOCBs until we have done process link event */
4842         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4843
4844         /* Update link event statistics */
4845         phba->sli.slistat.link_event++;
4846
4847         /* Create lpfc_handle_latt mailbox command from link ACQE */
4848         lpfc_read_topology(phba, pmb, mp);
4849         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4850         pmb->vport = phba->pport;
4851
4852         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4853                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4854
4855                 switch (phba->sli4_hba.link_state.status) {
4856                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4857                         phba->link_flag |= LS_MDS_LINK_DOWN;
4858                         break;
4859                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4860                         phba->link_flag |= LS_MDS_LOOPBACK;
4861                         break;
4862                 default:
4863                         break;
4864                 }
4865
4866                 /* Initialize completion status */
4867                 mb = &pmb->u.mb;
4868                 mb->mbxStatus = MBX_SUCCESS;
4869
4870                 /* Parse port fault information field */
4871                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
4872
4873                 /* Parse and translate link attention fields */
4874                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4875                 la->eventTag = acqe_fc->event_tag;
4876
4877                 if (phba->sli4_hba.link_state.status ==
4878                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4879                         bf_set(lpfc_mbx_read_top_att_type, la,
4880                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4881                 } else {
4882                         bf_set(lpfc_mbx_read_top_att_type, la,
4883                                LPFC_FC_LA_TYPE_LINK_DOWN);
4884                 }
4885                 /* Invoke the mailbox command callback function */
4886                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4887
4888                 return;
4889         }
4890
4891         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4892         if (rc == MBX_NOT_FINISHED)
4893                 goto out_free_dmabuf;
4894         return;
4895
4896 out_free_dmabuf:
4897         kfree(mp);
4898 out_free_pmb:
4899         mempool_free(pmb, phba->mbox_mem_pool);
4900 }
4901
4902 /**
4903  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4904  * @phba: pointer to lpfc hba data structure.
4905  * @acqe_fc: pointer to the async SLI completion queue entry.
4906  *
4907  * This routine is to handle the SLI4 asynchronous SLI events.
4908  **/
4909 static void
4910 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4911 {
4912         char port_name;
4913         char message[128];
4914         uint8_t status;
4915         uint8_t evt_type;
4916         uint8_t operational = 0;
4917         struct temp_event temp_event_data;
4918         struct lpfc_acqe_misconfigured_event *misconfigured;
4919         struct Scsi_Host  *shost;
4920         struct lpfc_vport **vports;
4921         int rc, i;
4922
4923         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4924
4925         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4926                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4927                         "x%08x SLI Event Type:%d\n",
4928                         acqe_sli->event_data1, acqe_sli->event_data2,
4929                         evt_type);
4930
4931         port_name = phba->Port[0];
4932         if (port_name == 0x00)
4933                 port_name = '?'; /* get port name is empty */
4934
4935         switch (evt_type) {
4936         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4937                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4938                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4939                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4940
4941                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4942                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4943                                 acqe_sli->event_data1, port_name);
4944
4945                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4946                 shost = lpfc_shost_from_vport(phba->pport);
4947                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4948                                           sizeof(temp_event_data),
4949                                           (char *)&temp_event_data,
4950                                           SCSI_NL_VID_TYPE_PCI
4951                                           | PCI_VENDOR_ID_EMULEX);
4952                 break;
4953         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4954                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4955                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4956                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4957
4958                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4959                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4960                                 acqe_sli->event_data1, port_name);
4961
4962                 shost = lpfc_shost_from_vport(phba->pport);
4963                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4964                                           sizeof(temp_event_data),
4965                                           (char *)&temp_event_data,
4966                                           SCSI_NL_VID_TYPE_PCI
4967                                           | PCI_VENDOR_ID_EMULEX);
4968                 break;
4969         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4970                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4971                                         &acqe_sli->event_data1;
4972
4973                 /* fetch the status for this port */
4974                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4975                 case LPFC_LINK_NUMBER_0:
4976                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4977                                         &misconfigured->theEvent);
4978                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4979                                         &misconfigured->theEvent);
4980                         break;
4981                 case LPFC_LINK_NUMBER_1:
4982                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4983                                         &misconfigured->theEvent);
4984                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4985                                         &misconfigured->theEvent);
4986                         break;
4987                 case LPFC_LINK_NUMBER_2:
4988                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4989                                         &misconfigured->theEvent);
4990                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4991                                         &misconfigured->theEvent);
4992                         break;
4993                 case LPFC_LINK_NUMBER_3:
4994                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4995                                         &misconfigured->theEvent);
4996                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4997                                         &misconfigured->theEvent);
4998                         break;
4999                 default:
5000                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5001                                         "3296 "
5002                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5003                                         "event: Invalid link %d",
5004                                         phba->sli4_hba.lnk_info.lnk_no);
5005                         return;
5006                 }
5007
5008                 /* Skip if optic state unchanged */
5009                 if (phba->sli4_hba.lnk_info.optic_state == status)
5010                         return;
5011
5012                 switch (status) {
5013                 case LPFC_SLI_EVENT_STATUS_VALID:
5014                         sprintf(message, "Physical Link is functional");
5015                         break;
5016                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5017                         sprintf(message, "Optics faulted/incorrectly "
5018                                 "installed/not installed - Reseat optics, "
5019                                 "if issue not resolved, replace.");
5020                         break;
5021                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5022                         sprintf(message,
5023                                 "Optics of two types installed - Remove one "
5024                                 "optic or install matching pair of optics.");
5025                         break;
5026                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5027                         sprintf(message, "Incompatible optics - Replace with "
5028                                 "compatible optics for card to function.");
5029                         break;
5030                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5031                         sprintf(message, "Unqualified optics - Replace with "
5032                                 "Avago optics for Warranty and Technical "
5033                                 "Support - Link is%s operational",
5034                                 (operational) ? " not" : "");
5035                         break;
5036                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5037                         sprintf(message, "Uncertified optics - Replace with "
5038                                 "Avago-certified optics to enable link "
5039                                 "operation - Link is%s operational",
5040                                 (operational) ? " not" : "");
5041                         break;
5042                 default:
5043                         /* firmware is reporting a status we don't know about */
5044                         sprintf(message, "Unknown event status x%02x", status);
5045                         break;
5046                 }
5047
5048                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5049                 rc = lpfc_sli4_read_config(phba);
5050                 if (rc) {
5051                         phba->lmt = 0;
5052                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5053                                         "3194 Unable to retrieve supported "
5054                                         "speeds, rc = 0x%x\n", rc);
5055                 }
5056                 vports = lpfc_create_vport_work_array(phba);
5057                 if (vports != NULL) {
5058                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5059                                         i++) {
5060                                 shost = lpfc_shost_from_vport(vports[i]);
5061                                 lpfc_host_supported_speeds_set(shost);
5062                         }
5063                 }
5064                 lpfc_destroy_vport_work_array(phba, vports);
5065
5066                 phba->sli4_hba.lnk_info.optic_state = status;
5067                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5068                                 "3176 Port Name %c %s\n", port_name, message);
5069                 break;
5070         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5071                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5072                                 "3192 Remote DPort Test Initiated - "
5073                                 "Event Data1:x%08x Event Data2: x%08x\n",
5074                                 acqe_sli->event_data1, acqe_sli->event_data2);
5075                 break;
5076         default:
5077                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5078                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5079                                 "x%08x SLI Event Type:%d\n",
5080                                 acqe_sli->event_data1, acqe_sli->event_data2,
5081                                 evt_type);
5082                 break;
5083         }
5084 }
5085
5086 /**
5087  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5088  * @vport: pointer to vport data structure.
5089  *
5090  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5091  * response to a CVL event.
5092  *
5093  * Return the pointer to the ndlp with the vport if successful, otherwise
5094  * return NULL.
5095  **/
5096 static struct lpfc_nodelist *
5097 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5098 {
5099         struct lpfc_nodelist *ndlp;
5100         struct Scsi_Host *shost;
5101         struct lpfc_hba *phba;
5102
5103         if (!vport)
5104                 return NULL;
5105         phba = vport->phba;
5106         if (!phba)
5107                 return NULL;
5108         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5109         if (!ndlp) {
5110                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5111                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5112                 if (!ndlp)
5113                         return 0;
5114                 /* Set the node type */
5115                 ndlp->nlp_type |= NLP_FABRIC;
5116                 /* Put ndlp onto node list */
5117                 lpfc_enqueue_node(vport, ndlp);
5118         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5119                 /* re-setup ndlp without removing from node list */
5120                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5121                 if (!ndlp)
5122                         return 0;
5123         }
5124         if ((phba->pport->port_state < LPFC_FLOGI) &&
5125                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5126                 return NULL;
5127         /* If virtual link is not yet instantiated ignore CVL */
5128         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5129                 && (vport->port_state != LPFC_VPORT_FAILED))
5130                 return NULL;
5131         shost = lpfc_shost_from_vport(vport);
5132         if (!shost)
5133                 return NULL;
5134         lpfc_linkdown_port(vport);
5135         lpfc_cleanup_pending_mbox(vport);
5136         spin_lock_irq(shost->host_lock);
5137         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5138         spin_unlock_irq(shost->host_lock);
5139
5140         return ndlp;
5141 }
5142
5143 /**
5144  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5145  * @vport: pointer to lpfc hba data structure.
5146  *
5147  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5148  * response to a FCF dead event.
5149  **/
5150 static void
5151 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5152 {
5153         struct lpfc_vport **vports;
5154         int i;
5155
5156         vports = lpfc_create_vport_work_array(phba);
5157         if (vports)
5158                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5159                         lpfc_sli4_perform_vport_cvl(vports[i]);
5160         lpfc_destroy_vport_work_array(phba, vports);
5161 }
5162
5163 /**
5164  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5165  * @phba: pointer to lpfc hba data structure.
5166  * @acqe_link: pointer to the async fcoe completion queue entry.
5167  *
5168  * This routine is to handle the SLI4 asynchronous fcoe event.
5169  **/
5170 static void
5171 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5172                         struct lpfc_acqe_fip *acqe_fip)
5173 {
5174         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5175         int rc;
5176         struct lpfc_vport *vport;
5177         struct lpfc_nodelist *ndlp;
5178         struct Scsi_Host  *shost;
5179         int active_vlink_present;
5180         struct lpfc_vport **vports;
5181         int i;
5182
5183         phba->fc_eventTag = acqe_fip->event_tag;
5184         phba->fcoe_eventtag = acqe_fip->event_tag;
5185         switch (event_type) {
5186         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5187         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5188                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5189                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5190                                         LOG_DISCOVERY,
5191                                         "2546 New FCF event, evt_tag:x%x, "
5192                                         "index:x%x\n",
5193                                         acqe_fip->event_tag,
5194                                         acqe_fip->index);
5195                 else
5196                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5197                                         LOG_DISCOVERY,
5198                                         "2788 FCF param modified event, "
5199                                         "evt_tag:x%x, index:x%x\n",
5200                                         acqe_fip->event_tag,
5201                                         acqe_fip->index);
5202                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5203                         /*
5204                          * During period of FCF discovery, read the FCF
5205                          * table record indexed by the event to update
5206                          * FCF roundrobin failover eligible FCF bmask.
5207                          */
5208                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5209                                         LOG_DISCOVERY,
5210                                         "2779 Read FCF (x%x) for updating "
5211                                         "roundrobin FCF failover bmask\n",
5212                                         acqe_fip->index);
5213                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5214                 }
5215
5216                 /* If the FCF discovery is in progress, do nothing. */
5217                 spin_lock_irq(&phba->hbalock);
5218                 if (phba->hba_flag & FCF_TS_INPROG) {
5219                         spin_unlock_irq(&phba->hbalock);
5220                         break;
5221                 }
5222                 /* If fast FCF failover rescan event is pending, do nothing */
5223                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5224                         spin_unlock_irq(&phba->hbalock);
5225                         break;
5226                 }
5227
5228                 /* If the FCF has been in discovered state, do nothing. */
5229                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5230                         spin_unlock_irq(&phba->hbalock);
5231                         break;
5232                 }
5233                 spin_unlock_irq(&phba->hbalock);
5234
5235                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5236                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5237                                 "2770 Start FCF table scan per async FCF "
5238                                 "event, evt_tag:x%x, index:x%x\n",
5239                                 acqe_fip->event_tag, acqe_fip->index);
5240                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5241                                                      LPFC_FCOE_FCF_GET_FIRST);
5242                 if (rc)
5243                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5244                                         "2547 Issue FCF scan read FCF mailbox "
5245                                         "command failed (x%x)\n", rc);
5246                 break;
5247
5248         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5249                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5250                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5251                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5252                         acqe_fip->event_tag);
5253                 break;
5254
5255         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5256                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5257                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5258                         "2549 FCF (x%x) disconnected from network, "
5259                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5260                 /*
5261                  * If we are in the middle of FCF failover process, clear
5262                  * the corresponding FCF bit in the roundrobin bitmap.
5263                  */
5264                 spin_lock_irq(&phba->hbalock);
5265                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5266                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5267                         spin_unlock_irq(&phba->hbalock);
5268                         /* Update FLOGI FCF failover eligible FCF bmask */
5269                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5270                         break;
5271                 }
5272                 spin_unlock_irq(&phba->hbalock);
5273
5274                 /* If the event is not for currently used fcf do nothing */
5275                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5276                         break;
5277
5278                 /*
5279                  * Otherwise, request the port to rediscover the entire FCF
5280                  * table for a fast recovery from case that the current FCF
5281                  * is no longer valid as we are not in the middle of FCF
5282                  * failover process already.
5283                  */
5284                 spin_lock_irq(&phba->hbalock);
5285                 /* Mark the fast failover process in progress */
5286                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5287                 spin_unlock_irq(&phba->hbalock);
5288
5289                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5290                                 "2771 Start FCF fast failover process due to "
5291                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5292                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5293                 rc = lpfc_sli4_redisc_fcf_table(phba);
5294                 if (rc) {
5295                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5296                                         LOG_DISCOVERY,
5297                                         "2772 Issue FCF rediscover mailbox "
5298                                         "command failed, fail through to FCF "
5299                                         "dead event\n");
5300                         spin_lock_irq(&phba->hbalock);
5301                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5302                         spin_unlock_irq(&phba->hbalock);
5303                         /*
5304                          * Last resort will fail over by treating this
5305                          * as a link down to FCF registration.
5306                          */
5307                         lpfc_sli4_fcf_dead_failthrough(phba);
5308                 } else {
5309                         /* Reset FCF roundrobin bmask for new discovery */
5310                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5311                         /*
5312                          * Handling fast FCF failover to a DEAD FCF event is
5313                          * considered equalivant to receiving CVL to all vports.
5314                          */
5315                         lpfc_sli4_perform_all_vport_cvl(phba);
5316                 }
5317                 break;
5318         case LPFC_FIP_EVENT_TYPE_CVL:
5319                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5320                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5321                         "2718 Clear Virtual Link Received for VPI 0x%x"
5322                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5323
5324                 vport = lpfc_find_vport_by_vpid(phba,
5325                                                 acqe_fip->index);
5326                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5327                 if (!ndlp)
5328                         break;
5329                 active_vlink_present = 0;
5330
5331                 vports = lpfc_create_vport_work_array(phba);
5332                 if (vports) {
5333                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5334                                         i++) {
5335                                 if ((!(vports[i]->fc_flag &
5336                                         FC_VPORT_CVL_RCVD)) &&
5337                                         (vports[i]->port_state > LPFC_FDISC)) {
5338                                         active_vlink_present = 1;
5339                                         break;
5340                                 }
5341                         }
5342                         lpfc_destroy_vport_work_array(phba, vports);
5343                 }
5344
5345                 /*
5346                  * Don't re-instantiate if vport is marked for deletion.
5347                  * If we are here first then vport_delete is going to wait
5348                  * for discovery to complete.
5349                  */
5350                 if (!(vport->load_flag & FC_UNLOADING) &&
5351                                         active_vlink_present) {
5352                         /*
5353                          * If there are other active VLinks present,
5354                          * re-instantiate the Vlink using FDISC.
5355                          */
5356                         mod_timer(&ndlp->nlp_delayfunc,
5357                                   jiffies + msecs_to_jiffies(1000));
5358                         shost = lpfc_shost_from_vport(vport);
5359                         spin_lock_irq(shost->host_lock);
5360                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5361                         spin_unlock_irq(shost->host_lock);
5362                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5363                         vport->port_state = LPFC_FDISC;
5364                 } else {
5365                         /*
5366                          * Otherwise, we request port to rediscover
5367                          * the entire FCF table for a fast recovery
5368                          * from possible case that the current FCF
5369                          * is no longer valid if we are not already
5370                          * in the FCF failover process.
5371                          */
5372                         spin_lock_irq(&phba->hbalock);
5373                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5374                                 spin_unlock_irq(&phba->hbalock);
5375                                 break;
5376                         }
5377                         /* Mark the fast failover process in progress */
5378                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5379                         spin_unlock_irq(&phba->hbalock);
5380                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5381                                         LOG_DISCOVERY,
5382                                         "2773 Start FCF failover per CVL, "
5383                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5384                         rc = lpfc_sli4_redisc_fcf_table(phba);
5385                         if (rc) {
5386                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5387                                                 LOG_DISCOVERY,
5388                                                 "2774 Issue FCF rediscover "
5389                                                 "mailbox command failed, "
5390                                                 "through to CVL event\n");
5391                                 spin_lock_irq(&phba->hbalock);
5392                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5393                                 spin_unlock_irq(&phba->hbalock);
5394                                 /*
5395                                  * Last resort will be re-try on the
5396                                  * the current registered FCF entry.
5397                                  */
5398                                 lpfc_retry_pport_discovery(phba);
5399                         } else
5400                                 /*
5401                                  * Reset FCF roundrobin bmask for new
5402                                  * discovery.
5403                                  */
5404                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5405                 }
5406                 break;
5407         default:
5408                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5409                         "0288 Unknown FCoE event type 0x%x event tag "
5410                         "0x%x\n", event_type, acqe_fip->event_tag);
5411                 break;
5412         }
5413 }
5414
5415 /**
5416  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5417  * @phba: pointer to lpfc hba data structure.
5418  * @acqe_link: pointer to the async dcbx completion queue entry.
5419  *
5420  * This routine is to handle the SLI4 asynchronous dcbx event.
5421  **/
5422 static void
5423 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5424                          struct lpfc_acqe_dcbx *acqe_dcbx)
5425 {
5426         phba->fc_eventTag = acqe_dcbx->event_tag;
5427         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5428                         "0290 The SLI4 DCBX asynchronous event is not "
5429                         "handled yet\n");
5430 }
5431
5432 /**
5433  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5434  * @phba: pointer to lpfc hba data structure.
5435  * @acqe_link: pointer to the async grp5 completion queue entry.
5436  *
5437  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5438  * is an asynchronous notified of a logical link speed change.  The Port
5439  * reports the logical link speed in units of 10Mbps.
5440  **/
5441 static void
5442 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5443                          struct lpfc_acqe_grp5 *acqe_grp5)
5444 {
5445         uint16_t prev_ll_spd;
5446
5447         phba->fc_eventTag = acqe_grp5->event_tag;
5448         phba->fcoe_eventtag = acqe_grp5->event_tag;
5449         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5450         phba->sli4_hba.link_state.logical_speed =
5451                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5452         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5453                         "2789 GRP5 Async Event: Updating logical link speed "
5454                         "from %dMbps to %dMbps\n", prev_ll_spd,
5455                         phba->sli4_hba.link_state.logical_speed);
5456 }
5457
5458 /**
5459  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5460  * @phba: pointer to lpfc hba data structure.
5461  *
5462  * This routine is invoked by the worker thread to process all the pending
5463  * SLI4 asynchronous events.
5464  **/
5465 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5466 {
5467         struct lpfc_cq_event *cq_event;
5468
5469         /* First, declare the async event has been handled */
5470         spin_lock_irq(&phba->hbalock);
5471         phba->hba_flag &= ~ASYNC_EVENT;
5472         spin_unlock_irq(&phba->hbalock);
5473         /* Now, handle all the async events */
5474         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5475                 /* Get the first event from the head of the event queue */
5476                 spin_lock_irq(&phba->hbalock);
5477                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5478                                  cq_event, struct lpfc_cq_event, list);
5479                 spin_unlock_irq(&phba->hbalock);
5480                 /* Process the asynchronous event */
5481                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5482                 case LPFC_TRAILER_CODE_LINK:
5483                         lpfc_sli4_async_link_evt(phba,
5484                                                  &cq_event->cqe.acqe_link);
5485                         break;
5486                 case LPFC_TRAILER_CODE_FCOE:
5487                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5488                         break;
5489                 case LPFC_TRAILER_CODE_DCBX:
5490                         lpfc_sli4_async_dcbx_evt(phba,
5491                                                  &cq_event->cqe.acqe_dcbx);
5492                         break;
5493                 case LPFC_TRAILER_CODE_GRP5:
5494                         lpfc_sli4_async_grp5_evt(phba,
5495                                                  &cq_event->cqe.acqe_grp5);
5496                         break;
5497                 case LPFC_TRAILER_CODE_FC:
5498                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5499                         break;
5500                 case LPFC_TRAILER_CODE_SLI:
5501                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5502                         break;
5503                 default:
5504                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5505                                         "1804 Invalid asynchrous event code: "
5506                                         "x%x\n", bf_get(lpfc_trailer_code,
5507                                         &cq_event->cqe.mcqe_cmpl));
5508                         break;
5509                 }
5510                 /* Free the completion event processed to the free pool */
5511                 lpfc_sli4_cq_event_release(phba, cq_event);
5512         }
5513 }
5514
5515 /**
5516  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5517  * @phba: pointer to lpfc hba data structure.
5518  *
5519  * This routine is invoked by the worker thread to process FCF table
5520  * rediscovery pending completion event.
5521  **/
5522 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5523 {
5524         int rc;
5525
5526         spin_lock_irq(&phba->hbalock);
5527         /* Clear FCF rediscovery timeout event */
5528         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5529         /* Clear driver fast failover FCF record flag */
5530         phba->fcf.failover_rec.flag = 0;
5531         /* Set state for FCF fast failover */
5532         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5533         spin_unlock_irq(&phba->hbalock);
5534
5535         /* Scan FCF table from the first entry to re-discover SAN */
5536         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5537                         "2777 Start post-quiescent FCF table scan\n");
5538         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5539         if (rc)
5540                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5541                                 "2747 Issue FCF scan read FCF mailbox "
5542                                 "command failed 0x%x\n", rc);
5543 }
5544
5545 /**
5546  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5547  * @phba: pointer to lpfc hba data structure.
5548  * @dev_grp: The HBA PCI-Device group number.
5549  *
5550  * This routine is invoked to set up the per HBA PCI-Device group function
5551  * API jump table entries.
5552  *
5553  * Return: 0 if success, otherwise -ENODEV
5554  **/
5555 int
5556 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5557 {
5558         int rc;
5559
5560         /* Set up lpfc PCI-device group */
5561         phba->pci_dev_grp = dev_grp;
5562
5563         /* The LPFC_PCI_DEV_OC uses SLI4 */
5564         if (dev_grp == LPFC_PCI_DEV_OC)
5565                 phba->sli_rev = LPFC_SLI_REV4;
5566
5567         /* Set up device INIT API function jump table */
5568         rc = lpfc_init_api_table_setup(phba, dev_grp);
5569         if (rc)
5570                 return -ENODEV;
5571         /* Set up SCSI API function jump table */
5572         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5573         if (rc)
5574                 return -ENODEV;
5575         /* Set up SLI API function jump table */
5576         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5577         if (rc)
5578                 return -ENODEV;
5579         /* Set up MBOX API function jump table */
5580         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5581         if (rc)
5582                 return -ENODEV;
5583
5584         return 0;
5585 }
5586
5587 /**
5588  * lpfc_log_intr_mode - Log the active interrupt mode
5589  * @phba: pointer to lpfc hba data structure.
5590  * @intr_mode: active interrupt mode adopted.
5591  *
5592  * This routine it invoked to log the currently used active interrupt mode
5593  * to the device.
5594  **/
5595 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5596 {
5597         switch (intr_mode) {
5598         case 0:
5599                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5600                                 "0470 Enable INTx interrupt mode.\n");
5601                 break;
5602         case 1:
5603                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5604                                 "0481 Enabled MSI interrupt mode.\n");
5605                 break;
5606         case 2:
5607                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5608                                 "0480 Enabled MSI-X interrupt mode.\n");
5609                 break;
5610         default:
5611                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5612                                 "0482 Illegal interrupt mode.\n");
5613                 break;
5614         }
5615         return;
5616 }
5617
5618 /**
5619  * lpfc_enable_pci_dev - Enable a generic PCI device.
5620  * @phba: pointer to lpfc hba data structure.
5621  *
5622  * This routine is invoked to enable the PCI device that is common to all
5623  * PCI devices.
5624  *
5625  * Return codes
5626  *      0 - successful
5627  *      other values - error
5628  **/
5629 static int
5630 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5631 {
5632         struct pci_dev *pdev;
5633
5634         /* Obtain PCI device reference */
5635         if (!phba->pcidev)
5636                 goto out_error;
5637         else
5638                 pdev = phba->pcidev;
5639         /* Enable PCI device */
5640         if (pci_enable_device_mem(pdev))
5641                 goto out_error;
5642         /* Request PCI resource for the device */
5643         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5644                 goto out_disable_device;
5645         /* Set up device as PCI master and save state for EEH */
5646         pci_set_master(pdev);
5647         pci_try_set_mwi(pdev);
5648         pci_save_state(pdev);
5649
5650         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5651         if (pci_is_pcie(pdev))
5652                 pdev->needs_freset = 1;
5653
5654         return 0;
5655
5656 out_disable_device:
5657         pci_disable_device(pdev);
5658 out_error:
5659         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5660                         "1401 Failed to enable pci device\n");
5661         return -ENODEV;
5662 }
5663
5664 /**
5665  * lpfc_disable_pci_dev - Disable a generic PCI device.
5666  * @phba: pointer to lpfc hba data structure.
5667  *
5668  * This routine is invoked to disable the PCI device that is common to all
5669  * PCI devices.
5670  **/
5671 static void
5672 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5673 {
5674         struct pci_dev *pdev;
5675
5676         /* Obtain PCI device reference */
5677         if (!phba->pcidev)
5678                 return;
5679         else
5680                 pdev = phba->pcidev;
5681         /* Release PCI resource and disable PCI device */
5682         pci_release_mem_regions(pdev);
5683         pci_disable_device(pdev);
5684
5685         return;
5686 }
5687
5688 /**
5689  * lpfc_reset_hba - Reset a hba
5690  * @phba: pointer to lpfc hba data structure.
5691  *
5692  * This routine is invoked to reset a hba device. It brings the HBA
5693  * offline, performs a board restart, and then brings the board back
5694  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5695  * on outstanding mailbox commands.
5696  **/
5697 void
5698 lpfc_reset_hba(struct lpfc_hba *phba)
5699 {
5700         /* If resets are disabled then set error state and return. */
5701         if (!phba->cfg_enable_hba_reset) {
5702                 phba->link_state = LPFC_HBA_ERROR;
5703                 return;
5704         }
5705         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5706                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5707         else
5708                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5709         lpfc_offline(phba);
5710         lpfc_sli_brdrestart(phba);
5711         lpfc_online(phba);
5712         lpfc_unblock_mgmt_io(phba);
5713 }
5714
5715 /**
5716  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5717  * @phba: pointer to lpfc hba data structure.
5718  *
5719  * This function enables the PCI SR-IOV virtual functions to a physical
5720  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5721  * enable the number of virtual functions to the physical function. As
5722  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5723  * API call does not considered as an error condition for most of the device.
5724  **/
5725 uint16_t
5726 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5727 {
5728         struct pci_dev *pdev = phba->pcidev;
5729         uint16_t nr_virtfn;
5730         int pos;
5731
5732         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5733         if (pos == 0)
5734                 return 0;
5735
5736         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5737         return nr_virtfn;
5738 }
5739
5740 /**
5741  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5742  * @phba: pointer to lpfc hba data structure.
5743  * @nr_vfn: number of virtual functions to be enabled.
5744  *
5745  * This function enables the PCI SR-IOV virtual functions to a physical
5746  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5747  * enable the number of virtual functions to the physical function. As
5748  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5749  * API call does not considered as an error condition for most of the device.
5750  **/
5751 int
5752 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5753 {
5754         struct pci_dev *pdev = phba->pcidev;
5755         uint16_t max_nr_vfn;
5756         int rc;
5757
5758         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5759         if (nr_vfn > max_nr_vfn) {
5760                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5761                                 "3057 Requested vfs (%d) greater than "
5762                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5763                 return -EINVAL;
5764         }
5765
5766         rc = pci_enable_sriov(pdev, nr_vfn);
5767         if (rc) {
5768                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5769                                 "2806 Failed to enable sriov on this device "
5770                                 "with vfn number nr_vf:%d, rc:%d\n",
5771                                 nr_vfn, rc);
5772         } else
5773                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5774                                 "2807 Successful enable sriov on this device "
5775                                 "with vfn number nr_vf:%d\n", nr_vfn);
5776         return rc;
5777 }
5778
5779 /**
5780  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5781  * @phba: pointer to lpfc hba data structure.
5782  *
5783  * This routine is invoked to set up the driver internal resources before the
5784  * device specific resource setup to support the HBA device it attached to.
5785  *
5786  * Return codes
5787  *      0 - successful
5788  *      other values - error
5789  **/
5790 static int
5791 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5792 {
5793         struct lpfc_sli *psli = &phba->sli;
5794
5795         /*
5796          * Driver resources common to all SLI revisions
5797          */
5798         atomic_set(&phba->fast_event_count, 0);
5799         spin_lock_init(&phba->hbalock);
5800
5801         /* Initialize ndlp management spinlock */
5802         spin_lock_init(&phba->ndlp_lock);
5803
5804         /* Initialize port_list spinlock */
5805         spin_lock_init(&phba->port_list_lock);
5806         INIT_LIST_HEAD(&phba->port_list);
5807
5808         INIT_LIST_HEAD(&phba->work_list);
5809         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5810
5811         /* Initialize the wait queue head for the kernel thread */
5812         init_waitqueue_head(&phba->work_waitq);
5813
5814         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5815                         "1403 Protocols supported %s %s %s\n",
5816                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5817                                 "SCSI" : " "),
5818                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5819                                 "NVME" : " "),
5820                         (phba->nvmet_support ? "NVMET" : " "));
5821
5822         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5823                 /* Initialize the scsi buffer list used by driver for scsi IO */
5824                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5825                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5826                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5827                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5828         }
5829
5830         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5831                 (phba->nvmet_support == 0)) {
5832                 /* Initialize the NVME buffer list used by driver for NVME IO */
5833                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5834                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5835                 phba->get_nvme_bufs = 0;
5836                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5837                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5838                 phba->put_nvme_bufs = 0;
5839         }
5840
5841         /* Initialize the fabric iocb list */
5842         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5843
5844         /* Initialize list to save ELS buffers */
5845         INIT_LIST_HEAD(&phba->elsbuf);
5846
5847         /* Initialize FCF connection rec list */
5848         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5849
5850         /* Initialize OAS configuration list */
5851         spin_lock_init(&phba->devicelock);
5852         INIT_LIST_HEAD(&phba->luns);
5853
5854         /* MBOX heartbeat timer */
5855         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5856         /* Fabric block timer */
5857         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5858         /* EA polling mode timer */
5859         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5860         /* Heartbeat timer */
5861         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5862
5863         return 0;
5864 }
5865
5866 /**
5867  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5868  * @phba: pointer to lpfc hba data structure.
5869  *
5870  * This routine is invoked to set up the driver internal resources specific to
5871  * support the SLI-3 HBA device it attached to.
5872  *
5873  * Return codes
5874  * 0 - successful
5875  * other values - error
5876  **/
5877 static int
5878 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5879 {
5880         int rc;
5881
5882         /*
5883          * Initialize timers used by driver
5884          */
5885
5886         /* FCP polling mode timer */
5887         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5888
5889         /* Host attention work mask setup */
5890         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5891         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5892
5893         /* Get all the module params for configuring this host */
5894         lpfc_get_cfgparam(phba);
5895         /* Set up phase-1 common device driver resources */
5896
5897         rc = lpfc_setup_driver_resource_phase1(phba);
5898         if (rc)
5899                 return -ENODEV;
5900
5901         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5902                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5903                 /* check for menlo minimum sg count */
5904                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5905                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5906         }
5907
5908         if (!phba->sli.sli3_ring)
5909                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
5910                                               sizeof(struct lpfc_sli_ring),
5911                                               GFP_KERNEL);
5912         if (!phba->sli.sli3_ring)
5913                 return -ENOMEM;
5914
5915         /*
5916          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5917          * used to create the sg_dma_buf_pool must be dynamically calculated.
5918          */
5919
5920         /* Initialize the host templates the configured values. */
5921         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5922         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5923         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5924
5925         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5926         if (phba->cfg_enable_bg) {
5927                 /*
5928                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5929                  * the FCP rsp, and a BDE for each. Sice we have no control
5930                  * over how many protection data segments the SCSI Layer
5931                  * will hand us (ie: there could be one for every block
5932                  * in the IO), we just allocate enough BDEs to accomidate
5933                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5934                  * minimize the risk of running out.
5935                  */
5936                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5937                         sizeof(struct fcp_rsp) +
5938                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5939
5940                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5941                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5942
5943                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5944                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5945         } else {
5946                 /*
5947                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5948                  * the FCP rsp, a BDE for each, and a BDE for up to
5949                  * cfg_sg_seg_cnt data segments.
5950                  */
5951                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5952                         sizeof(struct fcp_rsp) +
5953                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5954
5955                 /* Total BDEs in BPL for scsi_sg_list */
5956                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5957         }
5958
5959         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5960                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5961                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5962                         phba->cfg_total_seg_cnt);
5963
5964         phba->max_vpi = LPFC_MAX_VPI;
5965         /* This will be set to correct value after config_port mbox */
5966         phba->max_vports = 0;
5967
5968         /*
5969          * Initialize the SLI Layer to run with lpfc HBAs.
5970          */
5971         lpfc_sli_setup(phba);
5972         lpfc_sli_queue_init(phba);
5973
5974         /* Allocate device driver memory */
5975         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5976                 return -ENOMEM;
5977
5978         /*
5979          * Enable sr-iov virtual functions if supported and configured
5980          * through the module parameter.
5981          */
5982         if (phba->cfg_sriov_nr_virtfn > 0) {
5983                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5984                                                  phba->cfg_sriov_nr_virtfn);
5985                 if (rc) {
5986                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5987                                         "2808 Requested number of SR-IOV "
5988                                         "virtual functions (%d) is not "
5989                                         "supported\n",
5990                                         phba->cfg_sriov_nr_virtfn);
5991                         phba->cfg_sriov_nr_virtfn = 0;
5992                 }
5993         }
5994
5995         return 0;
5996 }
5997
5998 /**
5999  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6000  * @phba: pointer to lpfc hba data structure.
6001  *
6002  * This routine is invoked to unset the driver internal resources set up
6003  * specific for supporting the SLI-3 HBA device it attached to.
6004  **/
6005 static void
6006 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6007 {
6008         /* Free device driver memory allocated */
6009         lpfc_mem_free_all(phba);
6010
6011         return;
6012 }
6013
6014 /**
6015  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6016  * @phba: pointer to lpfc hba data structure.
6017  *
6018  * This routine is invoked to set up the driver internal resources specific to
6019  * support the SLI-4 HBA device it attached to.
6020  *
6021  * Return codes
6022  *      0 - successful
6023  *      other values - error
6024  **/
6025 static int
6026 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6027 {
6028         LPFC_MBOXQ_t *mboxq;
6029         MAILBOX_t *mb;
6030         int rc, i, max_buf_size;
6031         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6032         struct lpfc_mqe *mqe;
6033         int longs;
6034         int fof_vectors = 0;
6035         int extra;
6036         uint64_t wwn;
6037         u32 if_type;
6038         u32 if_fam;
6039
6040         phba->sli4_hba.num_online_cpu = num_online_cpus();
6041         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6042         phba->sli4_hba.curr_disp_cpu = 0;
6043
6044         /* Get all the module params for configuring this host */
6045         lpfc_get_cfgparam(phba);
6046
6047         /* Set up phase-1 common device driver resources */
6048         rc = lpfc_setup_driver_resource_phase1(phba);
6049         if (rc)
6050                 return -ENODEV;
6051
6052         /* Before proceed, wait for POST done and device ready */
6053         rc = lpfc_sli4_post_status_check(phba);
6054         if (rc)
6055                 return -ENODEV;
6056
6057         /*
6058          * Initialize timers used by driver
6059          */
6060
6061         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6062
6063         /* FCF rediscover timer */
6064         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6065
6066         /*
6067          * Control structure for handling external multi-buffer mailbox
6068          * command pass-through.
6069          */
6070         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6071                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6072         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6073
6074         phba->max_vpi = LPFC_MAX_VPI;
6075
6076         /* This will be set to correct value after the read_config mbox */
6077         phba->max_vports = 0;
6078
6079         /* Program the default value of vlan_id and fc_map */
6080         phba->valid_vlan = 0;
6081         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6082         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6083         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6084
6085         /*
6086          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6087          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6088          * The WQ create will allocate the ring.
6089          */
6090
6091         /*
6092          * 1 for cmd, 1 for rsp, NVME adds an extra one
6093          * for boundary conditions in its max_sgl_segment template.
6094          */
6095         extra = 2;
6096         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6097                 extra++;
6098
6099         /*
6100          * It doesn't matter what family our adapter is in, we are
6101          * limited to 2 Pages, 512 SGEs, for our SGL.
6102          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6103          */
6104         max_buf_size = (2 * SLI4_PAGE_SIZE);
6105
6106         /*
6107          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6108          * used to create the sg_dma_buf_pool must be calculated.
6109          */
6110         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6111                 /*
6112                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6113                  * the FCP rsp, and a SGE. Sice we have no control
6114                  * over how many protection segments the SCSI Layer
6115                  * will hand us (ie: there could be one for every block
6116                  * in the IO), just allocate enough SGEs to accomidate
6117                  * our max amount and we need to limit lpfc_sg_seg_cnt
6118                  * to minimize the risk of running out.
6119                  */
6120                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6121                                 sizeof(struct fcp_rsp) + max_buf_size;
6122
6123                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6124                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6125
6126                 /*
6127                  * If supporting DIF, reduce the seg count for scsi to
6128                  * allow room for the DIF sges.
6129                  */
6130                 if (phba->cfg_enable_bg &&
6131                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6132                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6133                 else
6134                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6135
6136         } else {
6137                 /*
6138                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6139                  * the FCP rsp, a SGE for each, and a SGE for up to
6140                  * cfg_sg_seg_cnt data segments.
6141                  */
6142                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6143                                 sizeof(struct fcp_rsp) +
6144                                 ((phba->cfg_sg_seg_cnt + extra) *
6145                                 sizeof(struct sli4_sge));
6146
6147                 /* Total SGEs for scsi_sg_list */
6148                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6149                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6150
6151                 /*
6152                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6153                  * need to post 1 page for the SGL.
6154                  */
6155         }
6156
6157         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6158         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6159                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6160                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6161                                         "6300 Reducing NVME sg segment "
6162                                         "cnt to %d\n",
6163                                         LPFC_MAX_NVME_SEG_CNT);
6164                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6165                 } else
6166                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6167         }
6168
6169         /* Initialize the host templates with the updated values. */
6170         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6171         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6172         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6173
6174         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6175                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6176         else
6177                 phba->cfg_sg_dma_buf_size =
6178                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6179
6180         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6181                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6182                         "total:%d scsi:%d nvme:%d\n",
6183                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6184                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6185                         phba->cfg_nvme_seg_cnt);
6186
6187         /* Initialize buffer queue management fields */
6188         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6189         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6190         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6191
6192         /*
6193          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6194          */
6195         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6196                 /* Initialize the Abort scsi buffer list used by driver */
6197                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6198                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6199         }
6200
6201         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6202                 /* Initialize the Abort nvme buffer list used by driver */
6203                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
6204                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
6205                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6206                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6207         }
6208
6209         /* This abort list used by worker thread */
6210         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6211         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6212
6213         /*
6214          * Initialize driver internal slow-path work queues
6215          */
6216
6217         /* Driver internel slow-path CQ Event pool */
6218         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6219         /* Response IOCB work queue list */
6220         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6221         /* Asynchronous event CQ Event work queue list */
6222         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6223         /* Fast-path XRI aborted CQ Event work queue list */
6224         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6225         /* Slow-path XRI aborted CQ Event work queue list */
6226         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6227         /* Receive queue CQ Event work queue list */
6228         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6229
6230         /* Initialize extent block lists. */
6231         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6232         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6233         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6234         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6235
6236         /* Initialize mboxq lists. If the early init routines fail
6237          * these lists need to be correctly initialized.
6238          */
6239         INIT_LIST_HEAD(&phba->sli.mboxq);
6240         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6241
6242         /* initialize optic_state to 0xFF */
6243         phba->sli4_hba.lnk_info.optic_state = 0xff;
6244
6245         /* Allocate device driver memory */
6246         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6247         if (rc)
6248                 return -ENOMEM;
6249
6250         /* IF Type 2 ports get initialized now. */
6251         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6252             LPFC_SLI_INTF_IF_TYPE_2) {
6253                 rc = lpfc_pci_function_reset(phba);
6254                 if (unlikely(rc)) {
6255                         rc = -ENODEV;
6256                         goto out_free_mem;
6257                 }
6258                 phba->temp_sensor_support = 1;
6259         }
6260
6261         /* Create the bootstrap mailbox command */
6262         rc = lpfc_create_bootstrap_mbox(phba);
6263         if (unlikely(rc))
6264                 goto out_free_mem;
6265
6266         /* Set up the host's endian order with the device. */
6267         rc = lpfc_setup_endian_order(phba);
6268         if (unlikely(rc))
6269                 goto out_free_bsmbx;
6270
6271         /* Set up the hba's configuration parameters. */
6272         rc = lpfc_sli4_read_config(phba);
6273         if (unlikely(rc))
6274                 goto out_free_bsmbx;
6275         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6276         if (unlikely(rc))
6277                 goto out_free_bsmbx;
6278
6279         /* IF Type 0 ports get initialized now. */
6280         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6281             LPFC_SLI_INTF_IF_TYPE_0) {
6282                 rc = lpfc_pci_function_reset(phba);
6283                 if (unlikely(rc))
6284                         goto out_free_bsmbx;
6285         }
6286
6287         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6288                                                        GFP_KERNEL);
6289         if (!mboxq) {
6290                 rc = -ENOMEM;
6291                 goto out_free_bsmbx;
6292         }
6293
6294         /* Check for NVMET being configured */
6295         phba->nvmet_support = 0;
6296         if (lpfc_enable_nvmet_cnt) {
6297
6298                 /* First get WWN of HBA instance */
6299                 lpfc_read_nv(phba, mboxq);
6300                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6301                 if (rc != MBX_SUCCESS) {
6302                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6303                                         "6016 Mailbox failed , mbxCmd x%x "
6304                                         "READ_NV, mbxStatus x%x\n",
6305                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6306                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6307                         mempool_free(mboxq, phba->mbox_mem_pool);
6308                         rc = -EIO;
6309                         goto out_free_bsmbx;
6310                 }
6311                 mb = &mboxq->u.mb;
6312                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6313                        sizeof(uint64_t));
6314                 wwn = cpu_to_be64(wwn);
6315                 phba->sli4_hba.wwnn.u.name = wwn;
6316                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6317                        sizeof(uint64_t));
6318                 /* wwn is WWPN of HBA instance */
6319                 wwn = cpu_to_be64(wwn);
6320                 phba->sli4_hba.wwpn.u.name = wwn;
6321
6322                 /* Check to see if it matches any module parameter */
6323                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6324                         if (wwn == lpfc_enable_nvmet[i]) {
6325 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6326                                 if (lpfc_nvmet_mem_alloc(phba))
6327                                         break;
6328
6329                                 phba->nvmet_support = 1; /* a match */
6330
6331                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6332                                                 "6017 NVME Target %016llx\n",
6333                                                 wwn);
6334 #else
6335                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6336                                                 "6021 Can't enable NVME Target."
6337                                                 " NVME_TARGET_FC infrastructure"
6338                                                 " is not in kernel\n");
6339 #endif
6340                                 break;
6341                         }
6342                 }
6343         }
6344
6345         lpfc_nvme_mod_param_dep(phba);
6346
6347         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6348         lpfc_supported_pages(mboxq);
6349         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6350         if (!rc) {
6351                 mqe = &mboxq->u.mqe;
6352                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6353                        LPFC_MAX_SUPPORTED_PAGES);
6354                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6355                         switch (pn_page[i]) {
6356                         case LPFC_SLI4_PARAMETERS:
6357                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6358                                 break;
6359                         default:
6360                                 break;
6361                         }
6362                 }
6363                 /* Read the port's SLI4 Parameters capabilities if supported. */
6364                 if (phba->sli4_hba.pc_sli4_params.supported)
6365                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6366                 if (rc) {
6367                         mempool_free(mboxq, phba->mbox_mem_pool);
6368                         rc = -EIO;
6369                         goto out_free_bsmbx;
6370                 }
6371         }
6372
6373         /*
6374          * Get sli4 parameters that override parameters from Port capabilities.
6375          * If this call fails, it isn't critical unless the SLI4 parameters come
6376          * back in conflict.
6377          */
6378         rc = lpfc_get_sli4_parameters(phba, mboxq);
6379         if (rc) {
6380                 if_type = bf_get(lpfc_sli_intf_if_type,
6381                                  &phba->sli4_hba.sli_intf);
6382                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6383                                 &phba->sli4_hba.sli_intf);
6384                 if (phba->sli4_hba.extents_in_use &&
6385                     phba->sli4_hba.rpi_hdrs_in_use) {
6386                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6387                                 "2999 Unsupported SLI4 Parameters "
6388                                 "Extents and RPI headers enabled.\n");
6389                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6390                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6391                                 mempool_free(mboxq, phba->mbox_mem_pool);
6392                                 rc = -EIO;
6393                                 goto out_free_bsmbx;
6394                         }
6395                 }
6396                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6397                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6398                         mempool_free(mboxq, phba->mbox_mem_pool);
6399                         rc = -EIO;
6400                         goto out_free_bsmbx;
6401                 }
6402         }
6403
6404         mempool_free(mboxq, phba->mbox_mem_pool);
6405
6406         /* Verify OAS is supported */
6407         lpfc_sli4_oas_verify(phba);
6408         if (phba->cfg_fof)
6409                 fof_vectors = 1;
6410
6411         /* Verify RAS support on adapter */
6412         lpfc_sli4_ras_init(phba);
6413
6414         /* Verify all the SLI4 queues */
6415         rc = lpfc_sli4_queue_verify(phba);
6416         if (rc)
6417                 goto out_free_bsmbx;
6418
6419         /* Create driver internal CQE event pool */
6420         rc = lpfc_sli4_cq_event_pool_create(phba);
6421         if (rc)
6422                 goto out_free_bsmbx;
6423
6424         /* Initialize sgl lists per host */
6425         lpfc_init_sgl_list(phba);
6426
6427         /* Allocate and initialize active sgl array */
6428         rc = lpfc_init_active_sgl_array(phba);
6429         if (rc) {
6430                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6431                                 "1430 Failed to initialize sgl list.\n");
6432                 goto out_destroy_cq_event_pool;
6433         }
6434         rc = lpfc_sli4_init_rpi_hdrs(phba);
6435         if (rc) {
6436                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6437                                 "1432 Failed to initialize rpi headers.\n");
6438                 goto out_free_active_sgl;
6439         }
6440
6441         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6442         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6443         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6444                                          GFP_KERNEL);
6445         if (!phba->fcf.fcf_rr_bmask) {
6446                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6447                                 "2759 Failed allocate memory for FCF round "
6448                                 "robin failover bmask\n");
6449                 rc = -ENOMEM;
6450                 goto out_remove_rpi_hdrs;
6451         }
6452
6453         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6454                                                 sizeof(struct lpfc_hba_eq_hdl),
6455                                                 GFP_KERNEL);
6456         if (!phba->sli4_hba.hba_eq_hdl) {
6457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6458                                 "2572 Failed allocate memory for "
6459                                 "fast-path per-EQ handle array\n");
6460                 rc = -ENOMEM;
6461                 goto out_free_fcf_rr_bmask;
6462         }
6463
6464         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6465                                         sizeof(struct lpfc_vector_map_info),
6466                                         GFP_KERNEL);
6467         if (!phba->sli4_hba.cpu_map) {
6468                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6469                                 "3327 Failed allocate memory for msi-x "
6470                                 "interrupt vector mapping\n");
6471                 rc = -ENOMEM;
6472                 goto out_free_hba_eq_hdl;
6473         }
6474         if (lpfc_used_cpu == NULL) {
6475                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6476                                                 GFP_KERNEL);
6477                 if (!lpfc_used_cpu) {
6478                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6479                                         "3335 Failed allocate memory for msi-x "
6480                                         "interrupt vector mapping\n");
6481                         kfree(phba->sli4_hba.cpu_map);
6482                         rc = -ENOMEM;
6483                         goto out_free_hba_eq_hdl;
6484                 }
6485                 for (i = 0; i < lpfc_present_cpu; i++)
6486                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6487         }
6488
6489         /*
6490          * Enable sr-iov virtual functions if supported and configured
6491          * through the module parameter.
6492          */
6493         if (phba->cfg_sriov_nr_virtfn > 0) {
6494                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6495                                                  phba->cfg_sriov_nr_virtfn);
6496                 if (rc) {
6497                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6498                                         "3020 Requested number of SR-IOV "
6499                                         "virtual functions (%d) is not "
6500                                         "supported\n",
6501                                         phba->cfg_sriov_nr_virtfn);
6502                         phba->cfg_sriov_nr_virtfn = 0;
6503                 }
6504         }
6505
6506         return 0;
6507
6508 out_free_hba_eq_hdl:
6509         kfree(phba->sli4_hba.hba_eq_hdl);
6510 out_free_fcf_rr_bmask:
6511         kfree(phba->fcf.fcf_rr_bmask);
6512 out_remove_rpi_hdrs:
6513         lpfc_sli4_remove_rpi_hdrs(phba);
6514 out_free_active_sgl:
6515         lpfc_free_active_sgl(phba);
6516 out_destroy_cq_event_pool:
6517         lpfc_sli4_cq_event_pool_destroy(phba);
6518 out_free_bsmbx:
6519         lpfc_destroy_bootstrap_mbox(phba);
6520 out_free_mem:
6521         lpfc_mem_free(phba);
6522         return rc;
6523 }
6524
6525 /**
6526  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6527  * @phba: pointer to lpfc hba data structure.
6528  *
6529  * This routine is invoked to unset the driver internal resources set up
6530  * specific for supporting the SLI-4 HBA device it attached to.
6531  **/
6532 static void
6533 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6534 {
6535         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6536
6537         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6538         kfree(phba->sli4_hba.cpu_map);
6539         phba->sli4_hba.num_present_cpu = 0;
6540         phba->sli4_hba.num_online_cpu = 0;
6541         phba->sli4_hba.curr_disp_cpu = 0;
6542
6543         /* Free memory allocated for fast-path work queue handles */
6544         kfree(phba->sli4_hba.hba_eq_hdl);
6545
6546         /* Free the allocated rpi headers. */
6547         lpfc_sli4_remove_rpi_hdrs(phba);
6548         lpfc_sli4_remove_rpis(phba);
6549
6550         /* Free eligible FCF index bmask */
6551         kfree(phba->fcf.fcf_rr_bmask);
6552
6553         /* Free the ELS sgl list */
6554         lpfc_free_active_sgl(phba);
6555         lpfc_free_els_sgl_list(phba);
6556         lpfc_free_nvmet_sgl_list(phba);
6557
6558         /* Free the completion queue EQ event pool */
6559         lpfc_sli4_cq_event_release_all(phba);
6560         lpfc_sli4_cq_event_pool_destroy(phba);
6561
6562         /* Release resource identifiers. */
6563         lpfc_sli4_dealloc_resource_identifiers(phba);
6564
6565         /* Free the bsmbx region. */
6566         lpfc_destroy_bootstrap_mbox(phba);
6567
6568         /* Free the SLI Layer memory with SLI4 HBAs */
6569         lpfc_mem_free_all(phba);
6570
6571         /* Free the current connect table */
6572         list_for_each_entry_safe(conn_entry, next_conn_entry,
6573                 &phba->fcf_conn_rec_list, list) {
6574                 list_del_init(&conn_entry->list);
6575                 kfree(conn_entry);
6576         }
6577
6578         return;
6579 }
6580
6581 /**
6582  * lpfc_init_api_table_setup - Set up init api function jump table
6583  * @phba: The hba struct for which this call is being executed.
6584  * @dev_grp: The HBA PCI-Device group number.
6585  *
6586  * This routine sets up the device INIT interface API function jump table
6587  * in @phba struct.
6588  *
6589  * Returns: 0 - success, -ENODEV - failure.
6590  **/
6591 int
6592 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6593 {
6594         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6595         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6596         phba->lpfc_selective_reset = lpfc_selective_reset;
6597         switch (dev_grp) {
6598         case LPFC_PCI_DEV_LP:
6599                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6600                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6601                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6602                 break;
6603         case LPFC_PCI_DEV_OC:
6604                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6605                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6606                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6607                 break;
6608         default:
6609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6610                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6611                                 dev_grp);
6612                 return -ENODEV;
6613                 break;
6614         }
6615         return 0;
6616 }
6617
6618 /**
6619  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6620  * @phba: pointer to lpfc hba data structure.
6621  *
6622  * This routine is invoked to set up the driver internal resources after the
6623  * device specific resource setup to support the HBA device it attached to.
6624  *
6625  * Return codes
6626  *      0 - successful
6627  *      other values - error
6628  **/
6629 static int
6630 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6631 {
6632         int error;
6633
6634         /* Startup the kernel thread for this host adapter. */
6635         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6636                                           "lpfc_worker_%d", phba->brd_no);
6637         if (IS_ERR(phba->worker_thread)) {
6638                 error = PTR_ERR(phba->worker_thread);
6639                 return error;
6640         }
6641
6642         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6643         if (phba->sli_rev == LPFC_SLI_REV4)
6644                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6645         else
6646                 phba->wq = NULL;
6647
6648         return 0;
6649 }
6650
6651 /**
6652  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6653  * @phba: pointer to lpfc hba data structure.
6654  *
6655  * This routine is invoked to unset the driver internal resources set up after
6656  * the device specific resource setup for supporting the HBA device it
6657  * attached to.
6658  **/
6659 static void
6660 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6661 {
6662         if (phba->wq) {
6663                 flush_workqueue(phba->wq);
6664                 destroy_workqueue(phba->wq);
6665                 phba->wq = NULL;
6666         }
6667
6668         /* Stop kernel worker thread */
6669         if (phba->worker_thread)
6670                 kthread_stop(phba->worker_thread);
6671 }
6672
6673 /**
6674  * lpfc_free_iocb_list - Free iocb list.
6675  * @phba: pointer to lpfc hba data structure.
6676  *
6677  * This routine is invoked to free the driver's IOCB list and memory.
6678  **/
6679 void
6680 lpfc_free_iocb_list(struct lpfc_hba *phba)
6681 {
6682         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6683
6684         spin_lock_irq(&phba->hbalock);
6685         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6686                                  &phba->lpfc_iocb_list, list) {
6687                 list_del(&iocbq_entry->list);
6688                 kfree(iocbq_entry);
6689                 phba->total_iocbq_bufs--;
6690         }
6691         spin_unlock_irq(&phba->hbalock);
6692
6693         return;
6694 }
6695
6696 /**
6697  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6698  * @phba: pointer to lpfc hba data structure.
6699  *
6700  * This routine is invoked to allocate and initizlize the driver's IOCB
6701  * list and set up the IOCB tag array accordingly.
6702  *
6703  * Return codes
6704  *      0 - successful
6705  *      other values - error
6706  **/
6707 int
6708 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6709 {
6710         struct lpfc_iocbq *iocbq_entry = NULL;
6711         uint16_t iotag;
6712         int i;
6713
6714         /* Initialize and populate the iocb list per host.  */
6715         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6716         for (i = 0; i < iocb_count; i++) {
6717                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6718                 if (iocbq_entry == NULL) {
6719                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6720                                 "expected %d count. Unloading driver.\n",
6721                                 __func__, i, LPFC_IOCB_LIST_CNT);
6722                         goto out_free_iocbq;
6723                 }
6724
6725                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6726                 if (iotag == 0) {
6727                         kfree(iocbq_entry);
6728                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6729                                 "Unloading driver.\n", __func__);
6730                         goto out_free_iocbq;
6731                 }
6732                 iocbq_entry->sli4_lxritag = NO_XRI;
6733                 iocbq_entry->sli4_xritag = NO_XRI;
6734
6735                 spin_lock_irq(&phba->hbalock);
6736                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6737                 phba->total_iocbq_bufs++;
6738                 spin_unlock_irq(&phba->hbalock);
6739         }
6740
6741         return 0;
6742
6743 out_free_iocbq:
6744         lpfc_free_iocb_list(phba);
6745
6746         return -ENOMEM;
6747 }
6748
6749 /**
6750  * lpfc_free_sgl_list - Free a given sgl list.
6751  * @phba: pointer to lpfc hba data structure.
6752  * @sglq_list: pointer to the head of sgl list.
6753  *
6754  * This routine is invoked to free a give sgl list and memory.
6755  **/
6756 void
6757 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6758 {
6759         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6760
6761         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6762                 list_del(&sglq_entry->list);
6763                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6764                 kfree(sglq_entry);
6765         }
6766 }
6767
6768 /**
6769  * lpfc_free_els_sgl_list - Free els sgl list.
6770  * @phba: pointer to lpfc hba data structure.
6771  *
6772  * This routine is invoked to free the driver's els sgl list and memory.
6773  **/
6774 static void
6775 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6776 {
6777         LIST_HEAD(sglq_list);
6778
6779         /* Retrieve all els sgls from driver list */
6780         spin_lock_irq(&phba->hbalock);
6781         spin_lock(&phba->sli4_hba.sgl_list_lock);
6782         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6783         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6784         spin_unlock_irq(&phba->hbalock);
6785
6786         /* Now free the sgl list */
6787         lpfc_free_sgl_list(phba, &sglq_list);
6788 }
6789
6790 /**
6791  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6792  * @phba: pointer to lpfc hba data structure.
6793  *
6794  * This routine is invoked to free the driver's nvmet sgl list and memory.
6795  **/
6796 static void
6797 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6798 {
6799         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6800         LIST_HEAD(sglq_list);
6801
6802         /* Retrieve all nvmet sgls from driver list */
6803         spin_lock_irq(&phba->hbalock);
6804         spin_lock(&phba->sli4_hba.sgl_list_lock);
6805         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6806         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6807         spin_unlock_irq(&phba->hbalock);
6808
6809         /* Now free the sgl list */
6810         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6811                 list_del(&sglq_entry->list);
6812                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6813                 kfree(sglq_entry);
6814         }
6815
6816         /* Update the nvmet_xri_cnt to reflect no current sgls.
6817          * The next initialization cycle sets the count and allocates
6818          * the sgls over again.
6819          */
6820         phba->sli4_hba.nvmet_xri_cnt = 0;
6821 }
6822
6823 /**
6824  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6825  * @phba: pointer to lpfc hba data structure.
6826  *
6827  * This routine is invoked to allocate the driver's active sgl memory.
6828  * This array will hold the sglq_entry's for active IOs.
6829  **/
6830 static int
6831 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6832 {
6833         int size;
6834         size = sizeof(struct lpfc_sglq *);
6835         size *= phba->sli4_hba.max_cfg_param.max_xri;
6836
6837         phba->sli4_hba.lpfc_sglq_active_list =
6838                 kzalloc(size, GFP_KERNEL);
6839         if (!phba->sli4_hba.lpfc_sglq_active_list)
6840                 return -ENOMEM;
6841         return 0;
6842 }
6843
6844 /**
6845  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6846  * @phba: pointer to lpfc hba data structure.
6847  *
6848  * This routine is invoked to walk through the array of active sglq entries
6849  * and free all of the resources.
6850  * This is just a place holder for now.
6851  **/
6852 static void
6853 lpfc_free_active_sgl(struct lpfc_hba *phba)
6854 {
6855         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6856 }
6857
6858 /**
6859  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6860  * @phba: pointer to lpfc hba data structure.
6861  *
6862  * This routine is invoked to allocate and initizlize the driver's sgl
6863  * list and set up the sgl xritag tag array accordingly.
6864  *
6865  **/
6866 static void
6867 lpfc_init_sgl_list(struct lpfc_hba *phba)
6868 {
6869         /* Initialize and populate the sglq list per host/VF. */
6870         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6871         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6872         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6873         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6874
6875         /* els xri-sgl book keeping */
6876         phba->sli4_hba.els_xri_cnt = 0;
6877
6878         /* scsi xri-buffer book keeping */
6879         phba->sli4_hba.scsi_xri_cnt = 0;
6880
6881         /* nvme xri-buffer book keeping */
6882         phba->sli4_hba.nvme_xri_cnt = 0;
6883 }
6884
6885 /**
6886  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6887  * @phba: pointer to lpfc hba data structure.
6888  *
6889  * This routine is invoked to post rpi header templates to the
6890  * port for those SLI4 ports that do not support extents.  This routine
6891  * posts a PAGE_SIZE memory region to the port to hold up to
6892  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6893  * and should be called only when interrupts are disabled.
6894  *
6895  * Return codes
6896  *      0 - successful
6897  *      -ERROR - otherwise.
6898  **/
6899 int
6900 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6901 {
6902         int rc = 0;
6903         struct lpfc_rpi_hdr *rpi_hdr;
6904
6905         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6906         if (!phba->sli4_hba.rpi_hdrs_in_use)
6907                 return rc;
6908         if (phba->sli4_hba.extents_in_use)
6909                 return -EIO;
6910
6911         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6912         if (!rpi_hdr) {
6913                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6914                                 "0391 Error during rpi post operation\n");
6915                 lpfc_sli4_remove_rpis(phba);
6916                 rc = -ENODEV;
6917         }
6918
6919         return rc;
6920 }
6921
6922 /**
6923  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6924  * @phba: pointer to lpfc hba data structure.
6925  *
6926  * This routine is invoked to allocate a single 4KB memory region to
6927  * support rpis and stores them in the phba.  This single region
6928  * provides support for up to 64 rpis.  The region is used globally
6929  * by the device.
6930  *
6931  * Returns:
6932  *   A valid rpi hdr on success.
6933  *   A NULL pointer on any failure.
6934  **/
6935 struct lpfc_rpi_hdr *
6936 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6937 {
6938         uint16_t rpi_limit, curr_rpi_range;
6939         struct lpfc_dmabuf *dmabuf;
6940         struct lpfc_rpi_hdr *rpi_hdr;
6941
6942         /*
6943          * If the SLI4 port supports extents, posting the rpi header isn't
6944          * required.  Set the expected maximum count and let the actual value
6945          * get set when extents are fully allocated.
6946          */
6947         if (!phba->sli4_hba.rpi_hdrs_in_use)
6948                 return NULL;
6949         if (phba->sli4_hba.extents_in_use)
6950                 return NULL;
6951
6952         /* The limit on the logical index is just the max_rpi count. */
6953         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6954
6955         spin_lock_irq(&phba->hbalock);
6956         /*
6957          * Establish the starting RPI in this header block.  The starting
6958          * rpi is normalized to a zero base because the physical rpi is
6959          * port based.
6960          */
6961         curr_rpi_range = phba->sli4_hba.next_rpi;
6962         spin_unlock_irq(&phba->hbalock);
6963
6964         /* Reached full RPI range */
6965         if (curr_rpi_range == rpi_limit)
6966                 return NULL;
6967
6968         /*
6969          * First allocate the protocol header region for the port.  The
6970          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6971          */
6972         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6973         if (!dmabuf)
6974                 return NULL;
6975
6976         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6977                                           LPFC_HDR_TEMPLATE_SIZE,
6978                                           &dmabuf->phys, GFP_KERNEL);
6979         if (!dmabuf->virt) {
6980                 rpi_hdr = NULL;
6981                 goto err_free_dmabuf;
6982         }
6983
6984         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6985                 rpi_hdr = NULL;
6986                 goto err_free_coherent;
6987         }
6988
6989         /* Save the rpi header data for cleanup later. */
6990         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6991         if (!rpi_hdr)
6992                 goto err_free_coherent;
6993
6994         rpi_hdr->dmabuf = dmabuf;
6995         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6996         rpi_hdr->page_count = 1;
6997         spin_lock_irq(&phba->hbalock);
6998
6999         /* The rpi_hdr stores the logical index only. */
7000         rpi_hdr->start_rpi = curr_rpi_range;
7001         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7002         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7003
7004         spin_unlock_irq(&phba->hbalock);
7005         return rpi_hdr;
7006
7007  err_free_coherent:
7008         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7009                           dmabuf->virt, dmabuf->phys);
7010  err_free_dmabuf:
7011         kfree(dmabuf);
7012         return NULL;
7013 }
7014
7015 /**
7016  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7017  * @phba: pointer to lpfc hba data structure.
7018  *
7019  * This routine is invoked to remove all memory resources allocated
7020  * to support rpis for SLI4 ports not supporting extents. This routine
7021  * presumes the caller has released all rpis consumed by fabric or port
7022  * logins and is prepared to have the header pages removed.
7023  **/
7024 void
7025 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7026 {
7027         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7028
7029         if (!phba->sli4_hba.rpi_hdrs_in_use)
7030                 goto exit;
7031
7032         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7033                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7034                 list_del(&rpi_hdr->list);
7035                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7036                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7037                 kfree(rpi_hdr->dmabuf);
7038                 kfree(rpi_hdr);
7039         }
7040  exit:
7041         /* There are no rpis available to the port now. */
7042         phba->sli4_hba.next_rpi = 0;
7043 }
7044
7045 /**
7046  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7047  * @pdev: pointer to pci device data structure.
7048  *
7049  * This routine is invoked to allocate the driver hba data structure for an
7050  * HBA device. If the allocation is successful, the phba reference to the
7051  * PCI device data structure is set.
7052  *
7053  * Return codes
7054  *      pointer to @phba - successful
7055  *      NULL - error
7056  **/
7057 static struct lpfc_hba *
7058 lpfc_hba_alloc(struct pci_dev *pdev)
7059 {
7060         struct lpfc_hba *phba;
7061
7062         /* Allocate memory for HBA structure */
7063         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7064         if (!phba) {
7065                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7066                 return NULL;
7067         }
7068
7069         /* Set reference to PCI device in HBA structure */
7070         phba->pcidev = pdev;
7071
7072         /* Assign an unused board number */
7073         phba->brd_no = lpfc_get_instance();
7074         if (phba->brd_no < 0) {
7075                 kfree(phba);
7076                 return NULL;
7077         }
7078         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7079
7080         spin_lock_init(&phba->ct_ev_lock);
7081         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7082
7083         return phba;
7084 }
7085
7086 /**
7087  * lpfc_hba_free - Free driver hba data structure with a device.
7088  * @phba: pointer to lpfc hba data structure.
7089  *
7090  * This routine is invoked to free the driver hba data structure with an
7091  * HBA device.
7092  **/
7093 static void
7094 lpfc_hba_free(struct lpfc_hba *phba)
7095 {
7096         /* Release the driver assigned board number */
7097         idr_remove(&lpfc_hba_index, phba->brd_no);
7098
7099         /* Free memory allocated with sli3 rings */
7100         kfree(phba->sli.sli3_ring);
7101         phba->sli.sli3_ring = NULL;
7102
7103         kfree(phba);
7104         return;
7105 }
7106
7107 /**
7108  * lpfc_create_shost - Create hba physical port with associated scsi host.
7109  * @phba: pointer to lpfc hba data structure.
7110  *
7111  * This routine is invoked to create HBA physical port and associate a SCSI
7112  * host with it.
7113  *
7114  * Return codes
7115  *      0 - successful
7116  *      other values - error
7117  **/
7118 static int
7119 lpfc_create_shost(struct lpfc_hba *phba)
7120 {
7121         struct lpfc_vport *vport;
7122         struct Scsi_Host  *shost;
7123
7124         /* Initialize HBA FC structure */
7125         phba->fc_edtov = FF_DEF_EDTOV;
7126         phba->fc_ratov = FF_DEF_RATOV;
7127         phba->fc_altov = FF_DEF_ALTOV;
7128         phba->fc_arbtov = FF_DEF_ARBTOV;
7129
7130         atomic_set(&phba->sdev_cnt, 0);
7131         atomic_set(&phba->fc4ScsiInputRequests, 0);
7132         atomic_set(&phba->fc4ScsiOutputRequests, 0);
7133         atomic_set(&phba->fc4ScsiControlRequests, 0);
7134         atomic_set(&phba->fc4ScsiIoCmpls, 0);
7135         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7136         if (!vport)
7137                 return -ENODEV;
7138
7139         shost = lpfc_shost_from_vport(vport);
7140         phba->pport = vport;
7141
7142         if (phba->nvmet_support) {
7143                 /* Only 1 vport (pport) will support NVME target */
7144                 if (phba->txrdy_payload_pool == NULL) {
7145                         phba->txrdy_payload_pool = dma_pool_create(
7146                                 "txrdy_pool", &phba->pcidev->dev,
7147                                 TXRDY_PAYLOAD_LEN, 16, 0);
7148                         if (phba->txrdy_payload_pool) {
7149                                 phba->targetport = NULL;
7150                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7151                                 lpfc_printf_log(phba, KERN_INFO,
7152                                                 LOG_INIT | LOG_NVME_DISC,
7153                                                 "6076 NVME Target Found\n");
7154                         }
7155                 }
7156         }
7157
7158         lpfc_debugfs_initialize(vport);
7159         /* Put reference to SCSI host to driver's device private data */
7160         pci_set_drvdata(phba->pcidev, shost);
7161
7162         /*
7163          * At this point we are fully registered with PSA. In addition,
7164          * any initial discovery should be completed.
7165          */
7166         vport->load_flag |= FC_ALLOW_FDMI;
7167         if (phba->cfg_enable_SmartSAN ||
7168             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7169
7170                 /* Setup appropriate attribute masks */
7171                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7172                 if (phba->cfg_enable_SmartSAN)
7173                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7174                 else
7175                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7176         }
7177         return 0;
7178 }
7179
7180 /**
7181  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7182  * @phba: pointer to lpfc hba data structure.
7183  *
7184  * This routine is invoked to destroy HBA physical port and the associated
7185  * SCSI host.
7186  **/
7187 static void
7188 lpfc_destroy_shost(struct lpfc_hba *phba)
7189 {
7190         struct lpfc_vport *vport = phba->pport;
7191
7192         /* Destroy physical port that associated with the SCSI host */
7193         destroy_port(vport);
7194
7195         return;
7196 }
7197
7198 /**
7199  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7200  * @phba: pointer to lpfc hba data structure.
7201  * @shost: the shost to be used to detect Block guard settings.
7202  *
7203  * This routine sets up the local Block guard protocol settings for @shost.
7204  * This routine also allocates memory for debugging bg buffers.
7205  **/
7206 static void
7207 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7208 {
7209         uint32_t old_mask;
7210         uint32_t old_guard;
7211
7212         int pagecnt = 10;
7213         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7214                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7215                                 "1478 Registering BlockGuard with the "
7216                                 "SCSI layer\n");
7217
7218                 old_mask = phba->cfg_prot_mask;
7219                 old_guard = phba->cfg_prot_guard;
7220
7221                 /* Only allow supported values */
7222                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7223                         SHOST_DIX_TYPE0_PROTECTION |
7224                         SHOST_DIX_TYPE1_PROTECTION);
7225                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7226                                          SHOST_DIX_GUARD_CRC);
7227
7228                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7229                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7230                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7231
7232                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7233                         if ((old_mask != phba->cfg_prot_mask) ||
7234                                 (old_guard != phba->cfg_prot_guard))
7235                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7236                                         "1475 Registering BlockGuard with the "
7237                                         "SCSI layer: mask %d  guard %d\n",
7238                                         phba->cfg_prot_mask,
7239                                         phba->cfg_prot_guard);
7240
7241                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7242                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7243                 } else
7244                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7245                                 "1479 Not Registering BlockGuard with the SCSI "
7246                                 "layer, Bad protection parameters: %d %d\n",
7247                                 old_mask, old_guard);
7248         }
7249
7250         if (!_dump_buf_data) {
7251                 while (pagecnt) {
7252                         spin_lock_init(&_dump_buf_lock);
7253                         _dump_buf_data =
7254                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7255                         if (_dump_buf_data) {
7256                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7257                                         "9043 BLKGRD: allocated %d pages for "
7258                                        "_dump_buf_data at 0x%p\n",
7259                                        (1 << pagecnt), _dump_buf_data);
7260                                 _dump_buf_data_order = pagecnt;
7261                                 memset(_dump_buf_data, 0,
7262                                        ((1 << PAGE_SHIFT) << pagecnt));
7263                                 break;
7264                         } else
7265                                 --pagecnt;
7266                 }
7267                 if (!_dump_buf_data_order)
7268                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7269                                 "9044 BLKGRD: ERROR unable to allocate "
7270                                "memory for hexdump\n");
7271         } else
7272                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7273                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7274                        "\n", _dump_buf_data);
7275         if (!_dump_buf_dif) {
7276                 while (pagecnt) {
7277                         _dump_buf_dif =
7278                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7279                         if (_dump_buf_dif) {
7280                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7281                                         "9046 BLKGRD: allocated %d pages for "
7282                                        "_dump_buf_dif at 0x%p\n",
7283                                        (1 << pagecnt), _dump_buf_dif);
7284                                 _dump_buf_dif_order = pagecnt;
7285                                 memset(_dump_buf_dif, 0,
7286                                        ((1 << PAGE_SHIFT) << pagecnt));
7287                                 break;
7288                         } else
7289                                 --pagecnt;
7290                 }
7291                 if (!_dump_buf_dif_order)
7292                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7293                         "9047 BLKGRD: ERROR unable to allocate "
7294                                "memory for hexdump\n");
7295         } else
7296                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7297                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7298                        _dump_buf_dif);
7299 }
7300
7301 /**
7302  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7303  * @phba: pointer to lpfc hba data structure.
7304  *
7305  * This routine is invoked to perform all the necessary post initialization
7306  * setup for the device.
7307  **/
7308 static void
7309 lpfc_post_init_setup(struct lpfc_hba *phba)
7310 {
7311         struct Scsi_Host  *shost;
7312         struct lpfc_adapter_event_header adapter_event;
7313
7314         /* Get the default values for Model Name and Description */
7315         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7316
7317         /*
7318          * hba setup may have changed the hba_queue_depth so we need to
7319          * adjust the value of can_queue.
7320          */
7321         shost = pci_get_drvdata(phba->pcidev);
7322         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7323         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7324                 lpfc_setup_bg(phba, shost);
7325
7326         lpfc_host_attrib_init(shost);
7327
7328         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7329                 spin_lock_irq(shost->host_lock);
7330                 lpfc_poll_start_timer(phba);
7331                 spin_unlock_irq(shost->host_lock);
7332         }
7333
7334         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7335                         "0428 Perform SCSI scan\n");
7336         /* Send board arrival event to upper layer */
7337         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7338         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7339         fc_host_post_vendor_event(shost, fc_get_event_number(),
7340                                   sizeof(adapter_event),
7341                                   (char *) &adapter_event,
7342                                   LPFC_NL_VENDOR_ID);
7343         return;
7344 }
7345
7346 /**
7347  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7348  * @phba: pointer to lpfc hba data structure.
7349  *
7350  * This routine is invoked to set up the PCI device memory space for device
7351  * with SLI-3 interface spec.
7352  *
7353  * Return codes
7354  *      0 - successful
7355  *      other values - error
7356  **/
7357 static int
7358 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7359 {
7360         struct pci_dev *pdev = phba->pcidev;
7361         unsigned long bar0map_len, bar2map_len;
7362         int i, hbq_count;
7363         void *ptr;
7364         int error = -ENODEV;
7365
7366         if (!pdev)
7367                 return error;
7368
7369         /* Set the device DMA mask size */
7370         if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
7371             dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
7372                 return error;
7373
7374         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7375          * required by each mapping.
7376          */
7377         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7378         bar0map_len = pci_resource_len(pdev, 0);
7379
7380         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7381         bar2map_len = pci_resource_len(pdev, 2);
7382
7383         /* Map HBA SLIM to a kernel virtual address. */
7384         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7385         if (!phba->slim_memmap_p) {
7386                 dev_printk(KERN_ERR, &pdev->dev,
7387                            "ioremap failed for SLIM memory.\n");
7388                 goto out;
7389         }
7390
7391         /* Map HBA Control Registers to a kernel virtual address. */
7392         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7393         if (!phba->ctrl_regs_memmap_p) {
7394                 dev_printk(KERN_ERR, &pdev->dev,
7395                            "ioremap failed for HBA control registers.\n");
7396                 goto out_iounmap_slim;
7397         }
7398
7399         /* Allocate memory for SLI-2 structures */
7400         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7401                                                &phba->slim2p.phys, GFP_KERNEL);
7402         if (!phba->slim2p.virt)
7403                 goto out_iounmap;
7404
7405         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7406         phba->mbox_ext = (phba->slim2p.virt +
7407                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7408         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7409         phba->IOCBs = (phba->slim2p.virt +
7410                        offsetof(struct lpfc_sli2_slim, IOCBs));
7411
7412         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7413                                                  lpfc_sli_hbq_size(),
7414                                                  &phba->hbqslimp.phys,
7415                                                  GFP_KERNEL);
7416         if (!phba->hbqslimp.virt)
7417                 goto out_free_slim;
7418
7419         hbq_count = lpfc_sli_hbq_count();
7420         ptr = phba->hbqslimp.virt;
7421         for (i = 0; i < hbq_count; ++i) {
7422                 phba->hbqs[i].hbq_virt = ptr;
7423                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7424                 ptr += (lpfc_hbq_defs[i]->entry_count *
7425                         sizeof(struct lpfc_hbq_entry));
7426         }
7427         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7428         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7429
7430         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7431
7432         phba->MBslimaddr = phba->slim_memmap_p;
7433         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7434         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7435         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7436         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7437
7438         return 0;
7439
7440 out_free_slim:
7441         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7442                           phba->slim2p.virt, phba->slim2p.phys);
7443 out_iounmap:
7444         iounmap(phba->ctrl_regs_memmap_p);
7445 out_iounmap_slim:
7446         iounmap(phba->slim_memmap_p);
7447 out:
7448         return error;
7449 }
7450
7451 /**
7452  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7453  * @phba: pointer to lpfc hba data structure.
7454  *
7455  * This routine is invoked to unset the PCI device memory space for device
7456  * with SLI-3 interface spec.
7457  **/
7458 static void
7459 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7460 {
7461         struct pci_dev *pdev;
7462
7463         /* Obtain PCI device reference */
7464         if (!phba->pcidev)
7465                 return;
7466         else
7467                 pdev = phba->pcidev;
7468
7469         /* Free coherent DMA memory allocated */
7470         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7471                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7472         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7473                           phba->slim2p.virt, phba->slim2p.phys);
7474
7475         /* I/O memory unmap */
7476         iounmap(phba->ctrl_regs_memmap_p);
7477         iounmap(phba->slim_memmap_p);
7478
7479         return;
7480 }
7481
7482 /**
7483  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7484  * @phba: pointer to lpfc hba data structure.
7485  *
7486  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7487  * done and check status.
7488  *
7489  * Return 0 if successful, otherwise -ENODEV.
7490  **/
7491 int
7492 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7493 {
7494         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7495         struct lpfc_register reg_data;
7496         int i, port_error = 0;
7497         uint32_t if_type;
7498
7499         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7500         memset(&reg_data, 0, sizeof(reg_data));
7501         if (!phba->sli4_hba.PSMPHRregaddr)
7502                 return -ENODEV;
7503
7504         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7505         for (i = 0; i < 3000; i++) {
7506                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7507                         &portsmphr_reg.word0) ||
7508                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7509                         /* Port has a fatal POST error, break out */
7510                         port_error = -ENODEV;
7511                         break;
7512                 }
7513                 if (LPFC_POST_STAGE_PORT_READY ==
7514                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7515                         break;
7516                 msleep(10);
7517         }
7518
7519         /*
7520          * If there was a port error during POST, then don't proceed with
7521          * other register reads as the data may not be valid.  Just exit.
7522          */
7523         if (port_error) {
7524                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7525                         "1408 Port Failed POST - portsmphr=0x%x, "
7526                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7527                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7528                         portsmphr_reg.word0,
7529                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7530                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7531                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7532                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7533                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7534                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7535                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7536                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7537         } else {
7538                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7539                                 "2534 Device Info: SLIFamily=0x%x, "
7540                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7541                                 "SLIHint_2=0x%x, FT=0x%x\n",
7542                                 bf_get(lpfc_sli_intf_sli_family,
7543                                        &phba->sli4_hba.sli_intf),
7544                                 bf_get(lpfc_sli_intf_slirev,
7545                                        &phba->sli4_hba.sli_intf),
7546                                 bf_get(lpfc_sli_intf_if_type,
7547                                        &phba->sli4_hba.sli_intf),
7548                                 bf_get(lpfc_sli_intf_sli_hint1,
7549                                        &phba->sli4_hba.sli_intf),
7550                                 bf_get(lpfc_sli_intf_sli_hint2,
7551                                        &phba->sli4_hba.sli_intf),
7552                                 bf_get(lpfc_sli_intf_func_type,
7553                                        &phba->sli4_hba.sli_intf));
7554                 /*
7555                  * Check for other Port errors during the initialization
7556                  * process.  Fail the load if the port did not come up
7557                  * correctly.
7558                  */
7559                 if_type = bf_get(lpfc_sli_intf_if_type,
7560                                  &phba->sli4_hba.sli_intf);
7561                 switch (if_type) {
7562                 case LPFC_SLI_INTF_IF_TYPE_0:
7563                         phba->sli4_hba.ue_mask_lo =
7564                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7565                         phba->sli4_hba.ue_mask_hi =
7566                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7567                         uerrlo_reg.word0 =
7568                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7569                         uerrhi_reg.word0 =
7570                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7571                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7572                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7573                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7574                                                 "1422 Unrecoverable Error "
7575                                                 "Detected during POST "
7576                                                 "uerr_lo_reg=0x%x, "
7577                                                 "uerr_hi_reg=0x%x, "
7578                                                 "ue_mask_lo_reg=0x%x, "
7579                                                 "ue_mask_hi_reg=0x%x\n",
7580                                                 uerrlo_reg.word0,
7581                                                 uerrhi_reg.word0,
7582                                                 phba->sli4_hba.ue_mask_lo,
7583                                                 phba->sli4_hba.ue_mask_hi);
7584                                 port_error = -ENODEV;
7585                         }
7586                         break;
7587                 case LPFC_SLI_INTF_IF_TYPE_2:
7588                 case LPFC_SLI_INTF_IF_TYPE_6:
7589                         /* Final checks.  The port status should be clean. */
7590                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7591                                 &reg_data.word0) ||
7592                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7593                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7594                                 phba->work_status[0] =
7595                                         readl(phba->sli4_hba.u.if_type2.
7596                                               ERR1regaddr);
7597                                 phba->work_status[1] =
7598                                         readl(phba->sli4_hba.u.if_type2.
7599                                               ERR2regaddr);
7600                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7601                                         "2888 Unrecoverable port error "
7602                                         "following POST: port status reg "
7603                                         "0x%x, port_smphr reg 0x%x, "
7604                                         "error 1=0x%x, error 2=0x%x\n",
7605                                         reg_data.word0,
7606                                         portsmphr_reg.word0,
7607                                         phba->work_status[0],
7608                                         phba->work_status[1]);
7609                                 port_error = -ENODEV;
7610                         }
7611                         break;
7612                 case LPFC_SLI_INTF_IF_TYPE_1:
7613                 default:
7614                         break;
7615                 }
7616         }
7617         return port_error;
7618 }
7619
7620 /**
7621  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7622  * @phba: pointer to lpfc hba data structure.
7623  * @if_type:  The SLI4 interface type getting configured.
7624  *
7625  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7626  * memory map.
7627  **/
7628 static void
7629 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7630 {
7631         switch (if_type) {
7632         case LPFC_SLI_INTF_IF_TYPE_0:
7633                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7634                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7635                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7636                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7637                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7638                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7639                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7640                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7641                 phba->sli4_hba.SLIINTFregaddr =
7642                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7643                 break;
7644         case LPFC_SLI_INTF_IF_TYPE_2:
7645                 phba->sli4_hba.u.if_type2.EQDregaddr =
7646                         phba->sli4_hba.conf_regs_memmap_p +
7647                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7648                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7649                         phba->sli4_hba.conf_regs_memmap_p +
7650                                                 LPFC_CTL_PORT_ER1_OFFSET;
7651                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7652                         phba->sli4_hba.conf_regs_memmap_p +
7653                                                 LPFC_CTL_PORT_ER2_OFFSET;
7654                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7655                         phba->sli4_hba.conf_regs_memmap_p +
7656                                                 LPFC_CTL_PORT_CTL_OFFSET;
7657                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7658                         phba->sli4_hba.conf_regs_memmap_p +
7659                                                 LPFC_CTL_PORT_STA_OFFSET;
7660                 phba->sli4_hba.SLIINTFregaddr =
7661                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7662                 phba->sli4_hba.PSMPHRregaddr =
7663                         phba->sli4_hba.conf_regs_memmap_p +
7664                                                 LPFC_CTL_PORT_SEM_OFFSET;
7665                 phba->sli4_hba.RQDBregaddr =
7666                         phba->sli4_hba.conf_regs_memmap_p +
7667                                                 LPFC_ULP0_RQ_DOORBELL;
7668                 phba->sli4_hba.WQDBregaddr =
7669                         phba->sli4_hba.conf_regs_memmap_p +
7670                                                 LPFC_ULP0_WQ_DOORBELL;
7671                 phba->sli4_hba.CQDBregaddr =
7672                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7673                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7674                 phba->sli4_hba.MQDBregaddr =
7675                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7676                 phba->sli4_hba.BMBXregaddr =
7677                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7678                 break;
7679         case LPFC_SLI_INTF_IF_TYPE_6:
7680                 phba->sli4_hba.u.if_type2.EQDregaddr =
7681                         phba->sli4_hba.conf_regs_memmap_p +
7682                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7683                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7684                         phba->sli4_hba.conf_regs_memmap_p +
7685                                                 LPFC_CTL_PORT_ER1_OFFSET;
7686                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7687                         phba->sli4_hba.conf_regs_memmap_p +
7688                                                 LPFC_CTL_PORT_ER2_OFFSET;
7689                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7690                         phba->sli4_hba.conf_regs_memmap_p +
7691                                                 LPFC_CTL_PORT_CTL_OFFSET;
7692                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7693                         phba->sli4_hba.conf_regs_memmap_p +
7694                                                 LPFC_CTL_PORT_STA_OFFSET;
7695                 phba->sli4_hba.PSMPHRregaddr =
7696                         phba->sli4_hba.conf_regs_memmap_p +
7697                                                 LPFC_CTL_PORT_SEM_OFFSET;
7698                 phba->sli4_hba.BMBXregaddr =
7699                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7700                 break;
7701         case LPFC_SLI_INTF_IF_TYPE_1:
7702         default:
7703                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7704                            "FATAL - unsupported SLI4 interface type - %d\n",
7705                            if_type);
7706                 break;
7707         }
7708 }
7709
7710 /**
7711  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7712  * @phba: pointer to lpfc hba data structure.
7713  *
7714  * This routine is invoked to set up SLI4 BAR1 register memory map.
7715  **/
7716 static void
7717 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7718 {
7719         switch (if_type) {
7720         case LPFC_SLI_INTF_IF_TYPE_0:
7721                 phba->sli4_hba.PSMPHRregaddr =
7722                         phba->sli4_hba.ctrl_regs_memmap_p +
7723                         LPFC_SLIPORT_IF0_SMPHR;
7724                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7725                         LPFC_HST_ISR0;
7726                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7727                         LPFC_HST_IMR0;
7728                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7729                         LPFC_HST_ISCR0;
7730                 break;
7731         case LPFC_SLI_INTF_IF_TYPE_6:
7732                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7733                         LPFC_IF6_RQ_DOORBELL;
7734                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7735                         LPFC_IF6_WQ_DOORBELL;
7736                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7737                         LPFC_IF6_CQ_DOORBELL;
7738                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7739                         LPFC_IF6_EQ_DOORBELL;
7740                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7741                         LPFC_IF6_MQ_DOORBELL;
7742                 break;
7743         case LPFC_SLI_INTF_IF_TYPE_2:
7744         case LPFC_SLI_INTF_IF_TYPE_1:
7745         default:
7746                 dev_err(&phba->pcidev->dev,
7747                            "FATAL - unsupported SLI4 interface type - %d\n",
7748                            if_type);
7749                 break;
7750         }
7751 }
7752
7753 /**
7754  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7755  * @phba: pointer to lpfc hba data structure.
7756  * @vf: virtual function number
7757  *
7758  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7759  * based on the given viftual function number, @vf.
7760  *
7761  * Return 0 if successful, otherwise -ENODEV.
7762  **/
7763 static int
7764 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7765 {
7766         if (vf > LPFC_VIR_FUNC_MAX)
7767                 return -ENODEV;
7768
7769         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7770                                 vf * LPFC_VFR_PAGE_SIZE +
7771                                         LPFC_ULP0_RQ_DOORBELL);
7772         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7773                                 vf * LPFC_VFR_PAGE_SIZE +
7774                                         LPFC_ULP0_WQ_DOORBELL);
7775         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7776                                 vf * LPFC_VFR_PAGE_SIZE +
7777                                         LPFC_EQCQ_DOORBELL);
7778         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7779         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7780                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7781         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7782                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7783         return 0;
7784 }
7785
7786 /**
7787  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7788  * @phba: pointer to lpfc hba data structure.
7789  *
7790  * This routine is invoked to create the bootstrap mailbox
7791  * region consistent with the SLI-4 interface spec.  This
7792  * routine allocates all memory necessary to communicate
7793  * mailbox commands to the port and sets up all alignment
7794  * needs.  No locks are expected to be held when calling
7795  * this routine.
7796  *
7797  * Return codes
7798  *      0 - successful
7799  *      -ENOMEM - could not allocated memory.
7800  **/
7801 static int
7802 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7803 {
7804         uint32_t bmbx_size;
7805         struct lpfc_dmabuf *dmabuf;
7806         struct dma_address *dma_address;
7807         uint32_t pa_addr;
7808         uint64_t phys_addr;
7809
7810         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7811         if (!dmabuf)
7812                 return -ENOMEM;
7813
7814         /*
7815          * The bootstrap mailbox region is comprised of 2 parts
7816          * plus an alignment restriction of 16 bytes.
7817          */
7818         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7819         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
7820                                           &dmabuf->phys, GFP_KERNEL);
7821         if (!dmabuf->virt) {
7822                 kfree(dmabuf);
7823                 return -ENOMEM;
7824         }
7825
7826         /*
7827          * Initialize the bootstrap mailbox pointers now so that the register
7828          * operations are simple later.  The mailbox dma address is required
7829          * to be 16-byte aligned.  Also align the virtual memory as each
7830          * maibox is copied into the bmbx mailbox region before issuing the
7831          * command to the port.
7832          */
7833         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7834         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7835
7836         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7837                                               LPFC_ALIGN_16_BYTE);
7838         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7839                                               LPFC_ALIGN_16_BYTE);
7840
7841         /*
7842          * Set the high and low physical addresses now.  The SLI4 alignment
7843          * requirement is 16 bytes and the mailbox is posted to the port
7844          * as two 30-bit addresses.  The other data is a bit marking whether
7845          * the 30-bit address is the high or low address.
7846          * Upcast bmbx aphys to 64bits so shift instruction compiles
7847          * clean on 32 bit machines.
7848          */
7849         dma_address = &phba->sli4_hba.bmbx.dma_address;
7850         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7851         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7852         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7853                                            LPFC_BMBX_BIT1_ADDR_HI);
7854
7855         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7856         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7857                                            LPFC_BMBX_BIT1_ADDR_LO);
7858         return 0;
7859 }
7860
7861 /**
7862  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7863  * @phba: pointer to lpfc hba data structure.
7864  *
7865  * This routine is invoked to teardown the bootstrap mailbox
7866  * region and release all host resources. This routine requires
7867  * the caller to ensure all mailbox commands recovered, no
7868  * additional mailbox comands are sent, and interrupts are disabled
7869  * before calling this routine.
7870  *
7871  **/
7872 static void
7873 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7874 {
7875         dma_free_coherent(&phba->pcidev->dev,
7876                           phba->sli4_hba.bmbx.bmbx_size,
7877                           phba->sli4_hba.bmbx.dmabuf->virt,
7878                           phba->sli4_hba.bmbx.dmabuf->phys);
7879
7880         kfree(phba->sli4_hba.bmbx.dmabuf);
7881         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7882 }
7883
7884 /**
7885  * lpfc_sli4_read_config - Get the config parameters.
7886  * @phba: pointer to lpfc hba data structure.
7887  *
7888  * This routine is invoked to read the configuration parameters from the HBA.
7889  * The configuration parameters are used to set the base and maximum values
7890  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7891  * allocation for the port.
7892  *
7893  * Return codes
7894  *      0 - successful
7895  *      -ENOMEM - No available memory
7896  *      -EIO - The mailbox failed to complete successfully.
7897  **/
7898 int
7899 lpfc_sli4_read_config(struct lpfc_hba *phba)
7900 {
7901         LPFC_MBOXQ_t *pmb;
7902         struct lpfc_mbx_read_config *rd_config;
7903         union  lpfc_sli4_cfg_shdr *shdr;
7904         uint32_t shdr_status, shdr_add_status;
7905         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7906         struct lpfc_rsrc_desc_fcfcoe *desc;
7907         char *pdesc_0;
7908         uint16_t forced_link_speed;
7909         uint32_t if_type;
7910         int length, i, rc = 0, rc2;
7911
7912         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7913         if (!pmb) {
7914                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7915                                 "2011 Unable to allocate memory for issuing "
7916                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7917                 return -ENOMEM;
7918         }
7919
7920         lpfc_read_config(phba, pmb);
7921
7922         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7923         if (rc != MBX_SUCCESS) {
7924                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7925                         "2012 Mailbox failed , mbxCmd x%x "
7926                         "READ_CONFIG, mbxStatus x%x\n",
7927                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7928                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7929                 rc = -EIO;
7930         } else {
7931                 rd_config = &pmb->u.mqe.un.rd_config;
7932                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7933                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7934                         phba->sli4_hba.lnk_info.lnk_tp =
7935                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7936                         phba->sli4_hba.lnk_info.lnk_no =
7937                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7938                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7939                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7940                                         phba->sli4_hba.lnk_info.lnk_tp,
7941                                         phba->sli4_hba.lnk_info.lnk_no);
7942                 } else
7943                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7944                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7945                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7946                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7947                         phba->bbcredit_support = 1;
7948                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7949                 }
7950
7951                 phba->sli4_hba.conf_trunk =
7952                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
7953                 phba->sli4_hba.extents_in_use =
7954                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7955                 phba->sli4_hba.max_cfg_param.max_xri =
7956                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7957                 phba->sli4_hba.max_cfg_param.xri_base =
7958                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7959                 phba->sli4_hba.max_cfg_param.max_vpi =
7960                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7961                 /* Limit the max we support */
7962                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
7963                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
7964                 phba->sli4_hba.max_cfg_param.vpi_base =
7965                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7966                 phba->sli4_hba.max_cfg_param.max_rpi =
7967                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7968                 phba->sli4_hba.max_cfg_param.rpi_base =
7969                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7970                 phba->sli4_hba.max_cfg_param.max_vfi =
7971                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7972                 phba->sli4_hba.max_cfg_param.vfi_base =
7973                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7974                 phba->sli4_hba.max_cfg_param.max_fcfi =
7975                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7976                 phba->sli4_hba.max_cfg_param.max_eq =
7977                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7978                 phba->sli4_hba.max_cfg_param.max_rq =
7979                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7980                 phba->sli4_hba.max_cfg_param.max_wq =
7981                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7982                 phba->sli4_hba.max_cfg_param.max_cq =
7983                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7984                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7985                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7986                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7987                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7988                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7989                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7990                 phba->max_vports = phba->max_vpi;
7991                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7992                                 "2003 cfg params Extents? %d "
7993                                 "XRI(B:%d M:%d), "
7994                                 "VPI(B:%d M:%d) "
7995                                 "VFI(B:%d M:%d) "
7996                                 "RPI(B:%d M:%d) "
7997                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7998                                 phba->sli4_hba.extents_in_use,
7999                                 phba->sli4_hba.max_cfg_param.xri_base,
8000                                 phba->sli4_hba.max_cfg_param.max_xri,
8001                                 phba->sli4_hba.max_cfg_param.vpi_base,
8002                                 phba->sli4_hba.max_cfg_param.max_vpi,
8003                                 phba->sli4_hba.max_cfg_param.vfi_base,
8004                                 phba->sli4_hba.max_cfg_param.max_vfi,
8005                                 phba->sli4_hba.max_cfg_param.rpi_base,
8006                                 phba->sli4_hba.max_cfg_param.max_rpi,
8007                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8008                                 phba->sli4_hba.max_cfg_param.max_eq,
8009                                 phba->sli4_hba.max_cfg_param.max_cq,
8010                                 phba->sli4_hba.max_cfg_param.max_wq,
8011                                 phba->sli4_hba.max_cfg_param.max_rq);
8012
8013                 /*
8014                  * Calculate NVME queue resources based on how
8015                  * many WQ/CQs are available.
8016                  */
8017                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8018                         length = phba->sli4_hba.max_cfg_param.max_wq;
8019                         if (phba->sli4_hba.max_cfg_param.max_cq <
8020                             phba->sli4_hba.max_cfg_param.max_wq)
8021                                 length = phba->sli4_hba.max_cfg_param.max_cq;
8022
8023                         /*
8024                          * Whats left after this can go toward NVME.
8025                          * The minus 6 accounts for ELS, NVME LS, MBOX
8026                          * fof plus a couple extra. When configured for
8027                          * NVMET, FCP io channel WQs are not created.
8028                          */
8029                         length -= 6;
8030                         if (!phba->nvmet_support)
8031                                 length -= phba->cfg_fcp_io_channel;
8032
8033                         if (phba->cfg_nvme_io_channel > length) {
8034                                 lpfc_printf_log(
8035                                         phba, KERN_ERR, LOG_SLI,
8036                                         "2005 Reducing NVME IO channel to %d: "
8037                                         "WQ %d CQ %d NVMEIO %d FCPIO %d\n",
8038                                         length,
8039                                         phba->sli4_hba.max_cfg_param.max_wq,
8040                                         phba->sli4_hba.max_cfg_param.max_cq,
8041                                         phba->cfg_nvme_io_channel,
8042                                         phba->cfg_fcp_io_channel);
8043
8044                                 phba->cfg_nvme_io_channel = length;
8045                         }
8046                 }
8047         }
8048
8049         if (rc)
8050                 goto read_cfg_out;
8051
8052         /* Update link speed if forced link speed is supported */
8053         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8054         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8055                 forced_link_speed =
8056                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8057                 if (forced_link_speed) {
8058                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8059
8060                         switch (forced_link_speed) {
8061                         case LINK_SPEED_1G:
8062                                 phba->cfg_link_speed =
8063                                         LPFC_USER_LINK_SPEED_1G;
8064                                 break;
8065                         case LINK_SPEED_2G:
8066                                 phba->cfg_link_speed =
8067                                         LPFC_USER_LINK_SPEED_2G;
8068                                 break;
8069                         case LINK_SPEED_4G:
8070                                 phba->cfg_link_speed =
8071                                         LPFC_USER_LINK_SPEED_4G;
8072                                 break;
8073                         case LINK_SPEED_8G:
8074                                 phba->cfg_link_speed =
8075                                         LPFC_USER_LINK_SPEED_8G;
8076                                 break;
8077                         case LINK_SPEED_10G:
8078                                 phba->cfg_link_speed =
8079                                         LPFC_USER_LINK_SPEED_10G;
8080                                 break;
8081                         case LINK_SPEED_16G:
8082                                 phba->cfg_link_speed =
8083                                         LPFC_USER_LINK_SPEED_16G;
8084                                 break;
8085                         case LINK_SPEED_32G:
8086                                 phba->cfg_link_speed =
8087                                         LPFC_USER_LINK_SPEED_32G;
8088                                 break;
8089                         case LINK_SPEED_64G:
8090                                 phba->cfg_link_speed =
8091                                         LPFC_USER_LINK_SPEED_64G;
8092                                 break;
8093                         case 0xffff:
8094                                 phba->cfg_link_speed =
8095                                         LPFC_USER_LINK_SPEED_AUTO;
8096                                 break;
8097                         default:
8098                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8099                                                 "0047 Unrecognized link "
8100                                                 "speed : %d\n",
8101                                                 forced_link_speed);
8102                                 phba->cfg_link_speed =
8103                                         LPFC_USER_LINK_SPEED_AUTO;
8104                         }
8105                 }
8106         }
8107
8108         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8109         length = phba->sli4_hba.max_cfg_param.max_xri -
8110                         lpfc_sli4_get_els_iocb_cnt(phba);
8111         if (phba->cfg_hba_queue_depth > length) {
8112                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8113                                 "3361 HBA queue depth changed from %d to %d\n",
8114                                 phba->cfg_hba_queue_depth, length);
8115                 phba->cfg_hba_queue_depth = length;
8116         }
8117
8118         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8119             LPFC_SLI_INTF_IF_TYPE_2)
8120                 goto read_cfg_out;
8121
8122         /* get the pf# and vf# for SLI4 if_type 2 port */
8123         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8124                   sizeof(struct lpfc_sli4_cfg_mhdr));
8125         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8126                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8127                          length, LPFC_SLI4_MBX_EMBED);
8128
8129         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8130         shdr = (union lpfc_sli4_cfg_shdr *)
8131                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8132         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8133         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8134         if (rc2 || shdr_status || shdr_add_status) {
8135                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8136                                 "3026 Mailbox failed , mbxCmd x%x "
8137                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8138                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8139                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8140                 goto read_cfg_out;
8141         }
8142
8143         /* search for fc_fcoe resrouce descriptor */
8144         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8145
8146         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8147         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8148         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8149         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8150                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8151         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8152                 goto read_cfg_out;
8153
8154         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8155                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8156                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8157                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8158                         phba->sli4_hba.iov.pf_number =
8159                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8160                         phba->sli4_hba.iov.vf_number =
8161                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8162                         break;
8163                 }
8164         }
8165
8166         if (i < LPFC_RSRC_DESC_MAX_NUM)
8167                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8168                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8169                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8170                                 phba->sli4_hba.iov.vf_number);
8171         else
8172                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8173                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8174                                 "Resource Descriptor:x%x\n",
8175                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8176
8177 read_cfg_out:
8178         mempool_free(pmb, phba->mbox_mem_pool);
8179         return rc;
8180 }
8181
8182 /**
8183  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8184  * @phba: pointer to lpfc hba data structure.
8185  *
8186  * This routine is invoked to setup the port-side endian order when
8187  * the port if_type is 0.  This routine has no function for other
8188  * if_types.
8189  *
8190  * Return codes
8191  *      0 - successful
8192  *      -ENOMEM - No available memory
8193  *      -EIO - The mailbox failed to complete successfully.
8194  **/
8195 static int
8196 lpfc_setup_endian_order(struct lpfc_hba *phba)
8197 {
8198         LPFC_MBOXQ_t *mboxq;
8199         uint32_t if_type, rc = 0;
8200         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8201                                       HOST_ENDIAN_HIGH_WORD1};
8202
8203         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8204         switch (if_type) {
8205         case LPFC_SLI_INTF_IF_TYPE_0:
8206                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8207                                                        GFP_KERNEL);
8208                 if (!mboxq) {
8209                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8210                                         "0492 Unable to allocate memory for "
8211                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8212                                         "command\n");
8213                         return -ENOMEM;
8214                 }
8215
8216                 /*
8217                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8218                  * two words to contain special data values and no other data.
8219                  */
8220                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8221                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8222                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8223                 if (rc != MBX_SUCCESS) {
8224                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8225                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8226                                         "failed with status x%x\n",
8227                                         rc);
8228                         rc = -EIO;
8229                 }
8230                 mempool_free(mboxq, phba->mbox_mem_pool);
8231                 break;
8232         case LPFC_SLI_INTF_IF_TYPE_6:
8233         case LPFC_SLI_INTF_IF_TYPE_2:
8234         case LPFC_SLI_INTF_IF_TYPE_1:
8235         default:
8236                 break;
8237         }
8238         return rc;
8239 }
8240
8241 /**
8242  * lpfc_sli4_queue_verify - Verify and update EQ counts
8243  * @phba: pointer to lpfc hba data structure.
8244  *
8245  * This routine is invoked to check the user settable queue counts for EQs.
8246  * After this routine is called the counts will be set to valid values that
8247  * adhere to the constraints of the system's interrupt vectors and the port's
8248  * queue resources.
8249  *
8250  * Return codes
8251  *      0 - successful
8252  *      -ENOMEM - No available memory
8253  **/
8254 static int
8255 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8256 {
8257         int io_channel;
8258         int fof_vectors = phba->cfg_fof ? 1 : 0;
8259
8260         /*
8261          * Sanity check for configured queue parameters against the run-time
8262          * device parameters
8263          */
8264
8265         /* Sanity check on HBA EQ parameters */
8266         io_channel = phba->io_channel_irqs;
8267
8268         if (phba->sli4_hba.num_online_cpu < io_channel) {
8269                 lpfc_printf_log(phba,
8270                                 KERN_ERR, LOG_INIT,
8271                                 "3188 Reducing IO channels to match number of "
8272                                 "online CPUs: from %d to %d\n",
8273                                 io_channel, phba->sli4_hba.num_online_cpu);
8274                 io_channel = phba->sli4_hba.num_online_cpu;
8275         }
8276
8277         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
8278                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8279                                 "2575 Reducing IO channels to match number of "
8280                                 "available EQs: from %d to %d\n",
8281                                 io_channel,
8282                                 phba->sli4_hba.max_cfg_param.max_eq);
8283                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
8284         }
8285
8286         /* The actual number of FCP / NVME event queues adopted */
8287         if (io_channel != phba->io_channel_irqs)
8288                 phba->io_channel_irqs = io_channel;
8289         if (phba->cfg_fcp_io_channel > io_channel)
8290                 phba->cfg_fcp_io_channel = io_channel;
8291         if (phba->cfg_nvme_io_channel > io_channel)
8292                 phba->cfg_nvme_io_channel = io_channel;
8293         if (phba->nvmet_support) {
8294                 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
8295                         phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
8296         }
8297         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8298                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8299
8300         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8301                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
8302                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
8303                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
8304
8305         /* Get EQ depth from module parameter, fake the default for now */
8306         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8307         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8308
8309         /* Get CQ depth from module parameter, fake the default for now */
8310         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8311         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8312         return 0;
8313 }
8314
8315 static int
8316 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8317 {
8318         struct lpfc_queue *qdesc;
8319
8320         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8321                                       phba->sli4_hba.cq_esize,
8322                                       LPFC_CQE_EXP_COUNT);
8323         if (!qdesc) {
8324                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8325                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8326                                 wqidx);
8327                 return 1;
8328         }
8329         qdesc->qe_valid = 1;
8330         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
8331
8332         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8333                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8334         if (!qdesc) {
8335                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8336                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8337                                 wqidx);
8338                 return 1;
8339         }
8340         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
8341         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8342         return 0;
8343 }
8344
8345 static int
8346 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8347 {
8348         struct lpfc_queue *qdesc;
8349         uint32_t wqesize;
8350
8351         /* Create Fast Path FCP CQs */
8352         if (phba->enab_exp_wqcq_pages)
8353                 /* Increase the CQ size when WQEs contain an embedded cdb */
8354                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8355                                               phba->sli4_hba.cq_esize,
8356                                               LPFC_CQE_EXP_COUNT);
8357
8358         else
8359                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8360                                               phba->sli4_hba.cq_esize,
8361                                               phba->sli4_hba.cq_ecount);
8362         if (!qdesc) {
8363                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8364                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8365                 return 1;
8366         }
8367         qdesc->qe_valid = 1;
8368         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8369
8370         /* Create Fast Path FCP WQs */
8371         if (phba->enab_exp_wqcq_pages) {
8372                 /* Increase the WQ size when WQEs contain an embedded cdb */
8373                 wqesize = (phba->fcp_embed_io) ?
8374                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8375                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8376                                               wqesize,
8377                                               LPFC_WQE_EXP_COUNT);
8378         } else
8379                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8380                                               phba->sli4_hba.wq_esize,
8381                                               phba->sli4_hba.wq_ecount);
8382
8383         if (!qdesc) {
8384                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8385                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8386                                 wqidx);
8387                 return 1;
8388         }
8389         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8390         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8391         return 0;
8392 }
8393
8394 /**
8395  * lpfc_sli4_queue_create - Create all the SLI4 queues
8396  * @phba: pointer to lpfc hba data structure.
8397  *
8398  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8399  * operation. For each SLI4 queue type, the parameters such as queue entry
8400  * count (queue depth) shall be taken from the module parameter. For now,
8401  * we just use some constant number as place holder.
8402  *
8403  * Return codes
8404  *      0 - successful
8405  *      -ENOMEM - No availble memory
8406  *      -EIO - The mailbox failed to complete successfully.
8407  **/
8408 int
8409 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8410 {
8411         struct lpfc_queue *qdesc;
8412         int idx, io_channel;
8413
8414         /*
8415          * Create HBA Record arrays.
8416          * Both NVME and FCP will share that same vectors / EQs
8417          */
8418         io_channel = phba->io_channel_irqs;
8419         if (!io_channel)
8420                 return -ERANGE;
8421
8422         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8423         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8424         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8425         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8426         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8427         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8428         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8429         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8430         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8431         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8432
8433         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8434                                         sizeof(struct lpfc_queue *),
8435                                         GFP_KERNEL);
8436         if (!phba->sli4_hba.hba_eq) {
8437                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8438                         "2576 Failed allocate memory for "
8439                         "fast-path EQ record array\n");
8440                 goto out_error;
8441         }
8442
8443         if (phba->cfg_fcp_io_channel) {
8444                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8445                                                 sizeof(struct lpfc_queue *),
8446                                                 GFP_KERNEL);
8447                 if (!phba->sli4_hba.fcp_cq) {
8448                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8449                                         "2577 Failed allocate memory for "
8450                                         "fast-path CQ record array\n");
8451                         goto out_error;
8452                 }
8453                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8454                                                 sizeof(struct lpfc_queue *),
8455                                                 GFP_KERNEL);
8456                 if (!phba->sli4_hba.fcp_wq) {
8457                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8458                                         "2578 Failed allocate memory for "
8459                                         "fast-path FCP WQ record array\n");
8460                         goto out_error;
8461                 }
8462                 /*
8463                  * Since the first EQ can have multiple CQs associated with it,
8464                  * this array is used to quickly see if we have a FCP fast-path
8465                  * CQ match.
8466                  */
8467                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8468                                                         sizeof(uint16_t),
8469                                                         GFP_KERNEL);
8470                 if (!phba->sli4_hba.fcp_cq_map) {
8471                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8472                                         "2545 Failed allocate memory for "
8473                                         "fast-path CQ map\n");
8474                         goto out_error;
8475                 }
8476         }
8477
8478         if (phba->cfg_nvme_io_channel) {
8479                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8480                                                 sizeof(struct lpfc_queue *),
8481                                                 GFP_KERNEL);
8482                 if (!phba->sli4_hba.nvme_cq) {
8483                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8484                                         "6077 Failed allocate memory for "
8485                                         "fast-path CQ record array\n");
8486                         goto out_error;
8487                 }
8488
8489                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8490                                                 sizeof(struct lpfc_queue *),
8491                                                 GFP_KERNEL);
8492                 if (!phba->sli4_hba.nvme_wq) {
8493                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8494                                         "2581 Failed allocate memory for "
8495                                         "fast-path NVME WQ record array\n");
8496                         goto out_error;
8497                 }
8498
8499                 /*
8500                  * Since the first EQ can have multiple CQs associated with it,
8501                  * this array is used to quickly see if we have a NVME fast-path
8502                  * CQ match.
8503                  */
8504                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8505                                                         sizeof(uint16_t),
8506                                                         GFP_KERNEL);
8507                 if (!phba->sli4_hba.nvme_cq_map) {
8508                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8509                                         "6078 Failed allocate memory for "
8510                                         "fast-path CQ map\n");
8511                         goto out_error;
8512                 }
8513
8514                 if (phba->nvmet_support) {
8515                         phba->sli4_hba.nvmet_cqset = kcalloc(
8516                                         phba->cfg_nvmet_mrq,
8517                                         sizeof(struct lpfc_queue *),
8518                                         GFP_KERNEL);
8519                         if (!phba->sli4_hba.nvmet_cqset) {
8520                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8521                                         "3121 Fail allocate memory for "
8522                                         "fast-path CQ set array\n");
8523                                 goto out_error;
8524                         }
8525                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8526                                         phba->cfg_nvmet_mrq,
8527                                         sizeof(struct lpfc_queue *),
8528                                         GFP_KERNEL);
8529                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8530                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8531                                         "3122 Fail allocate memory for "
8532                                         "fast-path RQ set hdr array\n");
8533                                 goto out_error;
8534                         }
8535                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8536                                         phba->cfg_nvmet_mrq,
8537                                         sizeof(struct lpfc_queue *),
8538                                         GFP_KERNEL);
8539                         if (!phba->sli4_hba.nvmet_mrq_data) {
8540                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8541                                         "3124 Fail allocate memory for "
8542                                         "fast-path RQ set data array\n");
8543                                 goto out_error;
8544                         }
8545                 }
8546         }
8547
8548         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8549
8550         /* Create HBA Event Queues (EQs) */
8551         for (idx = 0; idx < io_channel; idx++) {
8552                 /* Create EQs */
8553                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8554                                               phba->sli4_hba.eq_esize,
8555                                               phba->sli4_hba.eq_ecount);
8556                 if (!qdesc) {
8557                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8558                                         "0497 Failed allocate EQ (%d)\n", idx);
8559                         goto out_error;
8560                 }
8561                 qdesc->qe_valid = 1;
8562                 phba->sli4_hba.hba_eq[idx] = qdesc;
8563         }
8564
8565         /* FCP and NVME io channels are not required to be balanced */
8566
8567         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8568                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8569                         goto out_error;
8570
8571         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8572                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8573                         goto out_error;
8574
8575         if (phba->nvmet_support) {
8576                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8577                         qdesc = lpfc_sli4_queue_alloc(phba,
8578                                                       LPFC_DEFAULT_PAGE_SIZE,
8579                                                       phba->sli4_hba.cq_esize,
8580                                                       phba->sli4_hba.cq_ecount);
8581                         if (!qdesc) {
8582                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8583                                         "3142 Failed allocate NVME "
8584                                         "CQ Set (%d)\n", idx);
8585                                 goto out_error;
8586                         }
8587                         qdesc->qe_valid = 1;
8588                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8589                 }
8590         }
8591
8592         /*
8593          * Create Slow Path Completion Queues (CQs)
8594          */
8595
8596         /* Create slow-path Mailbox Command Complete Queue */
8597         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8598                                       phba->sli4_hba.cq_esize,
8599                                       phba->sli4_hba.cq_ecount);
8600         if (!qdesc) {
8601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8602                                 "0500 Failed allocate slow-path mailbox CQ\n");
8603                 goto out_error;
8604         }
8605         qdesc->qe_valid = 1;
8606         phba->sli4_hba.mbx_cq = qdesc;
8607
8608         /* Create slow-path ELS Complete Queue */
8609         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8610                                       phba->sli4_hba.cq_esize,
8611                                       phba->sli4_hba.cq_ecount);
8612         if (!qdesc) {
8613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8614                                 "0501 Failed allocate slow-path ELS CQ\n");
8615                 goto out_error;
8616         }
8617         qdesc->qe_valid = 1;
8618         phba->sli4_hba.els_cq = qdesc;
8619
8620
8621         /*
8622          * Create Slow Path Work Queues (WQs)
8623          */
8624
8625         /* Create Mailbox Command Queue */
8626
8627         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8628                                       phba->sli4_hba.mq_esize,
8629                                       phba->sli4_hba.mq_ecount);
8630         if (!qdesc) {
8631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8632                                 "0505 Failed allocate slow-path MQ\n");
8633                 goto out_error;
8634         }
8635         phba->sli4_hba.mbx_wq = qdesc;
8636
8637         /*
8638          * Create ELS Work Queues
8639          */
8640
8641         /* Create slow-path ELS Work Queue */
8642         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8643                                       phba->sli4_hba.wq_esize,
8644                                       phba->sli4_hba.wq_ecount);
8645         if (!qdesc) {
8646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8647                                 "0504 Failed allocate slow-path ELS WQ\n");
8648                 goto out_error;
8649         }
8650         phba->sli4_hba.els_wq = qdesc;
8651         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8652
8653         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8654                 /* Create NVME LS Complete Queue */
8655                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8656                                               phba->sli4_hba.cq_esize,
8657                                               phba->sli4_hba.cq_ecount);
8658                 if (!qdesc) {
8659                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8660                                         "6079 Failed allocate NVME LS CQ\n");
8661                         goto out_error;
8662                 }
8663                 qdesc->qe_valid = 1;
8664                 phba->sli4_hba.nvmels_cq = qdesc;
8665
8666                 /* Create NVME LS Work Queue */
8667                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8668                                               phba->sli4_hba.wq_esize,
8669                                               phba->sli4_hba.wq_ecount);
8670                 if (!qdesc) {
8671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8672                                         "6080 Failed allocate NVME LS WQ\n");
8673                         goto out_error;
8674                 }
8675                 phba->sli4_hba.nvmels_wq = qdesc;
8676                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8677         }
8678
8679         /*
8680          * Create Receive Queue (RQ)
8681          */
8682
8683         /* Create Receive Queue for header */
8684         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8685                                       phba->sli4_hba.rq_esize,
8686                                       phba->sli4_hba.rq_ecount);
8687         if (!qdesc) {
8688                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8689                                 "0506 Failed allocate receive HRQ\n");
8690                 goto out_error;
8691         }
8692         phba->sli4_hba.hdr_rq = qdesc;
8693
8694         /* Create Receive Queue for data */
8695         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8696                                       phba->sli4_hba.rq_esize,
8697                                       phba->sli4_hba.rq_ecount);
8698         if (!qdesc) {
8699                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8700                                 "0507 Failed allocate receive DRQ\n");
8701                 goto out_error;
8702         }
8703         phba->sli4_hba.dat_rq = qdesc;
8704
8705         if (phba->nvmet_support) {
8706                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8707                         /* Create NVMET Receive Queue for header */
8708                         qdesc = lpfc_sli4_queue_alloc(phba,
8709                                                       LPFC_DEFAULT_PAGE_SIZE,
8710                                                       phba->sli4_hba.rq_esize,
8711                                                       LPFC_NVMET_RQE_DEF_COUNT);
8712                         if (!qdesc) {
8713                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8714                                                 "3146 Failed allocate "
8715                                                 "receive HRQ\n");
8716                                 goto out_error;
8717                         }
8718                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8719
8720                         /* Only needed for header of RQ pair */
8721                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8722                                               GFP_KERNEL);
8723                         if (qdesc->rqbp == NULL) {
8724                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8725                                                 "6131 Failed allocate "
8726                                                 "Header RQBP\n");
8727                                 goto out_error;
8728                         }
8729
8730                         /* Put list in known state in case driver load fails. */
8731                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8732
8733                         /* Create NVMET Receive Queue for data */
8734                         qdesc = lpfc_sli4_queue_alloc(phba,
8735                                                       LPFC_DEFAULT_PAGE_SIZE,
8736                                                       phba->sli4_hba.rq_esize,
8737                                                       LPFC_NVMET_RQE_DEF_COUNT);
8738                         if (!qdesc) {
8739                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8740                                                 "3156 Failed allocate "
8741                                                 "receive DRQ\n");
8742                                 goto out_error;
8743                         }
8744                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8745                 }
8746         }
8747
8748         /* Create the Queues needed for Flash Optimized Fabric operations */
8749         if (phba->cfg_fof)
8750                 lpfc_fof_queue_create(phba);
8751         return 0;
8752
8753 out_error:
8754         lpfc_sli4_queue_destroy(phba);
8755         return -ENOMEM;
8756 }
8757
8758 static inline void
8759 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8760 {
8761         if (*qp != NULL) {
8762                 lpfc_sli4_queue_free(*qp);
8763                 *qp = NULL;
8764         }
8765 }
8766
8767 static inline void
8768 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8769 {
8770         int idx;
8771
8772         if (*qs == NULL)
8773                 return;
8774
8775         for (idx = 0; idx < max; idx++)
8776                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8777
8778         kfree(*qs);
8779         *qs = NULL;
8780 }
8781
8782 static inline void
8783 lpfc_sli4_release_queue_map(uint16_t **qmap)
8784 {
8785         if (*qmap != NULL) {
8786                 kfree(*qmap);
8787                 *qmap = NULL;
8788         }
8789 }
8790
8791 /**
8792  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8793  * @phba: pointer to lpfc hba data structure.
8794  *
8795  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8796  * operation.
8797  *
8798  * Return codes
8799  *      0 - successful
8800  *      -ENOMEM - No available memory
8801  *      -EIO - The mailbox failed to complete successfully.
8802  **/
8803 void
8804 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8805 {
8806         if (phba->cfg_fof)
8807                 lpfc_fof_queue_destroy(phba);
8808
8809         /* Release HBA eqs */
8810         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8811
8812         /* Release FCP cqs */
8813         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8814                                  phba->cfg_fcp_io_channel);
8815
8816         /* Release FCP wqs */
8817         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8818                                  phba->cfg_fcp_io_channel);
8819
8820         /* Release FCP CQ mapping array */
8821         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8822
8823         /* Release NVME cqs */
8824         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8825                                         phba->cfg_nvme_io_channel);
8826
8827         /* Release NVME wqs */
8828         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8829                                         phba->cfg_nvme_io_channel);
8830
8831         /* Release NVME CQ mapping array */
8832         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8833
8834         if (phba->nvmet_support) {
8835                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8836                                          phba->cfg_nvmet_mrq);
8837
8838                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8839                                          phba->cfg_nvmet_mrq);
8840                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8841                                          phba->cfg_nvmet_mrq);
8842         }
8843
8844         /* Release mailbox command work queue */
8845         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8846
8847         /* Release ELS work queue */
8848         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8849
8850         /* Release ELS work queue */
8851         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8852
8853         /* Release unsolicited receive queue */
8854         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8855         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8856
8857         /* Release ELS complete queue */
8858         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8859
8860         /* Release NVME LS complete queue */
8861         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8862
8863         /* Release mailbox command complete queue */
8864         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8865
8866         /* Everything on this list has been freed */
8867         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8868 }
8869
8870 int
8871 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8872 {
8873         struct lpfc_rqb *rqbp;
8874         struct lpfc_dmabuf *h_buf;
8875         struct rqb_dmabuf *rqb_buffer;
8876
8877         rqbp = rq->rqbp;
8878         while (!list_empty(&rqbp->rqb_buffer_list)) {
8879                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8880                                  struct lpfc_dmabuf, list);
8881
8882                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8883                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8884                 rqbp->buffer_count--;
8885         }
8886         return 1;
8887 }
8888
8889 static int
8890 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8891         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8892         int qidx, uint32_t qtype)
8893 {
8894         struct lpfc_sli_ring *pring;
8895         int rc;
8896
8897         if (!eq || !cq || !wq) {
8898                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8899                         "6085 Fast-path %s (%d) not allocated\n",
8900                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8901                 return -ENOMEM;
8902         }
8903
8904         /* create the Cq first */
8905         rc = lpfc_cq_create(phba, cq, eq,
8906                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8907         if (rc) {
8908                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8909                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8910                         qidx, (uint32_t)rc);
8911                 return rc;
8912         }
8913         cq->chann = qidx;
8914
8915         if (qtype != LPFC_MBOX) {
8916                 /* Setup nvme_cq_map for fast lookup */
8917                 if (cq_map)
8918                         *cq_map = cq->queue_id;
8919
8920                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8921                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8922                         qidx, cq->queue_id, qidx, eq->queue_id);
8923
8924                 /* create the wq */
8925                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8926                 if (rc) {
8927                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8928                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8929                                 qidx, (uint32_t)rc);
8930                         /* no need to tear down cq - caller will do so */
8931                         return rc;
8932                 }
8933                 wq->chann = qidx;
8934
8935                 /* Bind this CQ/WQ to the NVME ring */
8936                 pring = wq->pring;
8937                 pring->sli.sli4.wqp = (void *)wq;
8938                 cq->pring = pring;
8939
8940                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8941                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8942                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8943         } else {
8944                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8945                 if (rc) {
8946                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8947                                 "0539 Failed setup of slow-path MQ: "
8948                                 "rc = 0x%x\n", rc);
8949                         /* no need to tear down cq - caller will do so */
8950                         return rc;
8951                 }
8952
8953                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8954                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8955                         phba->sli4_hba.mbx_wq->queue_id,
8956                         phba->sli4_hba.mbx_cq->queue_id);
8957         }
8958
8959         return 0;
8960 }
8961
8962 /**
8963  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8964  * @phba: pointer to lpfc hba data structure.
8965  *
8966  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8967  * operation.
8968  *
8969  * Return codes
8970  *      0 - successful
8971  *      -ENOMEM - No available memory
8972  *      -EIO - The mailbox failed to complete successfully.
8973  **/
8974 int
8975 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8976 {
8977         uint32_t shdr_status, shdr_add_status;
8978         union lpfc_sli4_cfg_shdr *shdr;
8979         LPFC_MBOXQ_t *mboxq;
8980         int qidx;
8981         uint32_t length, io_channel;
8982         int rc = -ENOMEM;
8983
8984         /* Check for dual-ULP support */
8985         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8986         if (!mboxq) {
8987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8988                                 "3249 Unable to allocate memory for "
8989                                 "QUERY_FW_CFG mailbox command\n");
8990                 return -ENOMEM;
8991         }
8992         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8993                   sizeof(struct lpfc_sli4_cfg_mhdr));
8994         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8995                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8996                          length, LPFC_SLI4_MBX_EMBED);
8997
8998         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8999
9000         shdr = (union lpfc_sli4_cfg_shdr *)
9001                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9002         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9003         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9004         if (shdr_status || shdr_add_status || rc) {
9005                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9006                                 "3250 QUERY_FW_CFG mailbox failed with status "
9007                                 "x%x add_status x%x, mbx status x%x\n",
9008                                 shdr_status, shdr_add_status, rc);
9009                 if (rc != MBX_TIMEOUT)
9010                         mempool_free(mboxq, phba->mbox_mem_pool);
9011                 rc = -ENXIO;
9012                 goto out_error;
9013         }
9014
9015         phba->sli4_hba.fw_func_mode =
9016                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9017         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9018         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9019         phba->sli4_hba.physical_port =
9020                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9021         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9022                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9023                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9024                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9025
9026         if (rc != MBX_TIMEOUT)
9027                 mempool_free(mboxq, phba->mbox_mem_pool);
9028
9029         /*
9030          * Set up HBA Event Queues (EQs)
9031          */
9032         io_channel = phba->io_channel_irqs;
9033
9034         /* Set up HBA event queue */
9035         if (io_channel && !phba->sli4_hba.hba_eq) {
9036                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9037                                 "3147 Fast-path EQs not allocated\n");
9038                 rc = -ENOMEM;
9039                 goto out_error;
9040         }
9041         for (qidx = 0; qidx < io_channel; qidx++) {
9042                 if (!phba->sli4_hba.hba_eq[qidx]) {
9043                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9044                                         "0522 Fast-path EQ (%d) not "
9045                                         "allocated\n", qidx);
9046                         rc = -ENOMEM;
9047                         goto out_destroy;
9048                 }
9049                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
9050                                                 phba->cfg_fcp_imax);
9051                 if (rc) {
9052                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9053                                         "0523 Failed setup of fast-path EQ "
9054                                         "(%d), rc = 0x%x\n", qidx,
9055                                         (uint32_t)rc);
9056                         goto out_destroy;
9057                 }
9058                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9059                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
9060                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
9061         }
9062
9063         if (phba->cfg_nvme_io_channel) {
9064                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
9065                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9066                                 "6084 Fast-path NVME %s array not allocated\n",
9067                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
9068                         rc = -ENOMEM;
9069                         goto out_destroy;
9070                 }
9071
9072                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
9073                         rc = lpfc_create_wq_cq(phba,
9074                                         phba->sli4_hba.hba_eq[
9075                                                 qidx % io_channel],
9076                                         phba->sli4_hba.nvme_cq[qidx],
9077                                         phba->sli4_hba.nvme_wq[qidx],
9078                                         &phba->sli4_hba.nvme_cq_map[qidx],
9079                                         qidx, LPFC_NVME);
9080                         if (rc) {
9081                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9082                                         "6123 Failed to setup fastpath "
9083                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
9084                                         qidx, (uint32_t)rc);
9085                                 goto out_destroy;
9086                         }
9087                 }
9088         }
9089
9090         if (phba->cfg_fcp_io_channel) {
9091                 /* Set up fast-path FCP Response Complete Queue */
9092                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
9093                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9094                                 "3148 Fast-path FCP %s array not allocated\n",
9095                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
9096                         rc = -ENOMEM;
9097                         goto out_destroy;
9098                 }
9099
9100                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
9101                         rc = lpfc_create_wq_cq(phba,
9102                                         phba->sli4_hba.hba_eq[
9103                                                 qidx % io_channel],
9104                                         phba->sli4_hba.fcp_cq[qidx],
9105                                         phba->sli4_hba.fcp_wq[qidx],
9106                                         &phba->sli4_hba.fcp_cq_map[qidx],
9107                                         qidx, LPFC_FCP);
9108                         if (rc) {
9109                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9110                                         "0535 Failed to setup fastpath "
9111                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
9112                                         qidx, (uint32_t)rc);
9113                                 goto out_destroy;
9114                         }
9115                 }
9116         }
9117
9118         /*
9119          * Set up Slow Path Complete Queues (CQs)
9120          */
9121
9122         /* Set up slow-path MBOX CQ/MQ */
9123
9124         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9125                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9126                                 "0528 %s not allocated\n",
9127                                 phba->sli4_hba.mbx_cq ?
9128                                 "Mailbox WQ" : "Mailbox CQ");
9129                 rc = -ENOMEM;
9130                 goto out_destroy;
9131         }
9132
9133         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9134                                phba->sli4_hba.mbx_cq,
9135                                phba->sli4_hba.mbx_wq,
9136                                NULL, 0, LPFC_MBOX);
9137         if (rc) {
9138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9139                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9140                         (uint32_t)rc);
9141                 goto out_destroy;
9142         }
9143         if (phba->nvmet_support) {
9144                 if (!phba->sli4_hba.nvmet_cqset) {
9145                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9146                                         "3165 Fast-path NVME CQ Set "
9147                                         "array not allocated\n");
9148                         rc = -ENOMEM;
9149                         goto out_destroy;
9150                 }
9151                 if (phba->cfg_nvmet_mrq > 1) {
9152                         rc = lpfc_cq_create_set(phba,
9153                                         phba->sli4_hba.nvmet_cqset,
9154                                         phba->sli4_hba.hba_eq,
9155                                         LPFC_WCQ, LPFC_NVMET);
9156                         if (rc) {
9157                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9158                                                 "3164 Failed setup of NVME CQ "
9159                                                 "Set, rc = 0x%x\n",
9160                                                 (uint32_t)rc);
9161                                 goto out_destroy;
9162                         }
9163                 } else {
9164                         /* Set up NVMET Receive Complete Queue */
9165                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9166                                             phba->sli4_hba.hba_eq[0],
9167                                             LPFC_WCQ, LPFC_NVMET);
9168                         if (rc) {
9169                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9170                                                 "6089 Failed setup NVMET CQ: "
9171                                                 "rc = 0x%x\n", (uint32_t)rc);
9172                                 goto out_destroy;
9173                         }
9174                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9175
9176                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9177                                         "6090 NVMET CQ setup: cq-id=%d, "
9178                                         "parent eq-id=%d\n",
9179                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9180                                         phba->sli4_hba.hba_eq[0]->queue_id);
9181                 }
9182         }
9183
9184         /* Set up slow-path ELS WQ/CQ */
9185         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9186                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9187                                 "0530 ELS %s not allocated\n",
9188                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9189                 rc = -ENOMEM;
9190                 goto out_destroy;
9191         }
9192         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9193                                         phba->sli4_hba.els_cq,
9194                                         phba->sli4_hba.els_wq,
9195                                         NULL, 0, LPFC_ELS);
9196         if (rc) {
9197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9198                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9199                         (uint32_t)rc);
9200                 goto out_destroy;
9201         }
9202         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9203                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9204                         phba->sli4_hba.els_wq->queue_id,
9205                         phba->sli4_hba.els_cq->queue_id);
9206
9207         if (phba->cfg_nvme_io_channel) {
9208                 /* Set up NVME LS Complete Queue */
9209                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9210                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9211                                         "6091 LS %s not allocated\n",
9212                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9213                         rc = -ENOMEM;
9214                         goto out_destroy;
9215                 }
9216                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9217                                         phba->sli4_hba.nvmels_cq,
9218                                         phba->sli4_hba.nvmels_wq,
9219                                         NULL, 0, LPFC_NVME_LS);
9220                 if (rc) {
9221                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9222                                 "0529 Failed setup of NVVME LS WQ/CQ: "
9223                                 "rc = 0x%x\n", (uint32_t)rc);
9224                         goto out_destroy;
9225                 }
9226
9227                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9228                                 "6096 ELS WQ setup: wq-id=%d, "
9229                                 "parent cq-id=%d\n",
9230                                 phba->sli4_hba.nvmels_wq->queue_id,
9231                                 phba->sli4_hba.nvmels_cq->queue_id);
9232         }
9233
9234         /*
9235          * Create NVMET Receive Queue (RQ)
9236          */
9237         if (phba->nvmet_support) {
9238                 if ((!phba->sli4_hba.nvmet_cqset) ||
9239                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9240                     (!phba->sli4_hba.nvmet_mrq_data)) {
9241                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9242                                         "6130 MRQ CQ Queues not "
9243                                         "allocated\n");
9244                         rc = -ENOMEM;
9245                         goto out_destroy;
9246                 }
9247                 if (phba->cfg_nvmet_mrq > 1) {
9248                         rc = lpfc_mrq_create(phba,
9249                                              phba->sli4_hba.nvmet_mrq_hdr,
9250                                              phba->sli4_hba.nvmet_mrq_data,
9251                                              phba->sli4_hba.nvmet_cqset,
9252                                              LPFC_NVMET);
9253                         if (rc) {
9254                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9255                                                 "6098 Failed setup of NVMET "
9256                                                 "MRQ: rc = 0x%x\n",
9257                                                 (uint32_t)rc);
9258                                 goto out_destroy;
9259                         }
9260
9261                 } else {
9262                         rc = lpfc_rq_create(phba,
9263                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9264                                             phba->sli4_hba.nvmet_mrq_data[0],
9265                                             phba->sli4_hba.nvmet_cqset[0],
9266                                             LPFC_NVMET);
9267                         if (rc) {
9268                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9269                                                 "6057 Failed setup of NVMET "
9270                                                 "Receive Queue: rc = 0x%x\n",
9271                                                 (uint32_t)rc);
9272                                 goto out_destroy;
9273                         }
9274
9275                         lpfc_printf_log(
9276                                 phba, KERN_INFO, LOG_INIT,
9277                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9278                                 "dat-rq-id=%d parent cq-id=%d\n",
9279                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9280                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9281                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9282
9283                 }
9284         }
9285
9286         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9288                                 "0540 Receive Queue not allocated\n");
9289                 rc = -ENOMEM;
9290                 goto out_destroy;
9291         }
9292
9293         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9294                             phba->sli4_hba.els_cq, LPFC_USOL);
9295         if (rc) {
9296                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9297                                 "0541 Failed setup of Receive Queue: "
9298                                 "rc = 0x%x\n", (uint32_t)rc);
9299                 goto out_destroy;
9300         }
9301
9302         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9303                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9304                         "parent cq-id=%d\n",
9305                         phba->sli4_hba.hdr_rq->queue_id,
9306                         phba->sli4_hba.dat_rq->queue_id,
9307                         phba->sli4_hba.els_cq->queue_id);
9308
9309         if (phba->cfg_fof) {
9310                 rc = lpfc_fof_queue_setup(phba);
9311                 if (rc) {
9312                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9313                                         "0549 Failed setup of FOF Queues: "
9314                                         "rc = 0x%x\n", rc);
9315                         goto out_destroy;
9316                 }
9317         }
9318
9319         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9320                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9321                                          phba->cfg_fcp_imax);
9322
9323         return 0;
9324
9325 out_destroy:
9326         lpfc_sli4_queue_unset(phba);
9327 out_error:
9328         return rc;
9329 }
9330
9331 /**
9332  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9333  * @phba: pointer to lpfc hba data structure.
9334  *
9335  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9336  * operation.
9337  *
9338  * Return codes
9339  *      0 - successful
9340  *      -ENOMEM - No available memory
9341  *      -EIO - The mailbox failed to complete successfully.
9342  **/
9343 void
9344 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9345 {
9346         int qidx;
9347
9348         /* Unset the queues created for Flash Optimized Fabric operations */
9349         if (phba->cfg_fof)
9350                 lpfc_fof_queue_destroy(phba);
9351
9352         /* Unset mailbox command work queue */
9353         if (phba->sli4_hba.mbx_wq)
9354                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9355
9356         /* Unset NVME LS work queue */
9357         if (phba->sli4_hba.nvmels_wq)
9358                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9359
9360         /* Unset ELS work queue */
9361         if (phba->sli4_hba.els_wq)
9362                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9363
9364         /* Unset unsolicited receive queue */
9365         if (phba->sli4_hba.hdr_rq)
9366                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9367                                 phba->sli4_hba.dat_rq);
9368
9369         /* Unset FCP work queue */
9370         if (phba->sli4_hba.fcp_wq)
9371                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9372                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
9373
9374         /* Unset NVME work queue */
9375         if (phba->sli4_hba.nvme_wq) {
9376                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9377                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
9378         }
9379
9380         /* Unset mailbox command complete queue */
9381         if (phba->sli4_hba.mbx_cq)
9382                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9383
9384         /* Unset ELS complete queue */
9385         if (phba->sli4_hba.els_cq)
9386                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9387
9388         /* Unset NVME LS complete queue */
9389         if (phba->sli4_hba.nvmels_cq)
9390                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9391
9392         /* Unset NVME response complete queue */
9393         if (phba->sli4_hba.nvme_cq)
9394                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9395                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
9396
9397         if (phba->nvmet_support) {
9398                 /* Unset NVMET MRQ queue */
9399                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9400                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9401                                 lpfc_rq_destroy(
9402                                         phba,
9403                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9404                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9405                 }
9406
9407                 /* Unset NVMET CQ Set complete queue */
9408                 if (phba->sli4_hba.nvmet_cqset) {
9409                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9410                                 lpfc_cq_destroy(
9411                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9412                 }
9413         }
9414
9415         /* Unset FCP response complete queue */
9416         if (phba->sli4_hba.fcp_cq)
9417                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9418                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9419
9420         /* Unset fast-path event queue */
9421         if (phba->sli4_hba.hba_eq)
9422                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9423                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9424 }
9425
9426 /**
9427  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9428  * @phba: pointer to lpfc hba data structure.
9429  *
9430  * This routine is invoked to allocate and set up a pool of completion queue
9431  * events. The body of the completion queue event is a completion queue entry
9432  * CQE. For now, this pool is used for the interrupt service routine to queue
9433  * the following HBA completion queue events for the worker thread to process:
9434  *   - Mailbox asynchronous events
9435  *   - Receive queue completion unsolicited events
9436  * Later, this can be used for all the slow-path events.
9437  *
9438  * Return codes
9439  *      0 - successful
9440  *      -ENOMEM - No available memory
9441  **/
9442 static int
9443 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9444 {
9445         struct lpfc_cq_event *cq_event;
9446         int i;
9447
9448         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9449                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9450                 if (!cq_event)
9451                         goto out_pool_create_fail;
9452                 list_add_tail(&cq_event->list,
9453                               &phba->sli4_hba.sp_cqe_event_pool);
9454         }
9455         return 0;
9456
9457 out_pool_create_fail:
9458         lpfc_sli4_cq_event_pool_destroy(phba);
9459         return -ENOMEM;
9460 }
9461
9462 /**
9463  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9464  * @phba: pointer to lpfc hba data structure.
9465  *
9466  * This routine is invoked to free the pool of completion queue events at
9467  * driver unload time. Note that, it is the responsibility of the driver
9468  * cleanup routine to free all the outstanding completion-queue events
9469  * allocated from this pool back into the pool before invoking this routine
9470  * to destroy the pool.
9471  **/
9472 static void
9473 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9474 {
9475         struct lpfc_cq_event *cq_event, *next_cq_event;
9476
9477         list_for_each_entry_safe(cq_event, next_cq_event,
9478                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9479                 list_del(&cq_event->list);
9480                 kfree(cq_event);
9481         }
9482 }
9483
9484 /**
9485  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9486  * @phba: pointer to lpfc hba data structure.
9487  *
9488  * This routine is the lock free version of the API invoked to allocate a
9489  * completion-queue event from the free pool.
9490  *
9491  * Return: Pointer to the newly allocated completion-queue event if successful
9492  *         NULL otherwise.
9493  **/
9494 struct lpfc_cq_event *
9495 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9496 {
9497         struct lpfc_cq_event *cq_event = NULL;
9498
9499         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9500                          struct lpfc_cq_event, list);
9501         return cq_event;
9502 }
9503
9504 /**
9505  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9506  * @phba: pointer to lpfc hba data structure.
9507  *
9508  * This routine is the lock version of the API invoked to allocate a
9509  * completion-queue event from the free pool.
9510  *
9511  * Return: Pointer to the newly allocated completion-queue event if successful
9512  *         NULL otherwise.
9513  **/
9514 struct lpfc_cq_event *
9515 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9516 {
9517         struct lpfc_cq_event *cq_event;
9518         unsigned long iflags;
9519
9520         spin_lock_irqsave(&phba->hbalock, iflags);
9521         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9522         spin_unlock_irqrestore(&phba->hbalock, iflags);
9523         return cq_event;
9524 }
9525
9526 /**
9527  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9528  * @phba: pointer to lpfc hba data structure.
9529  * @cq_event: pointer to the completion queue event to be freed.
9530  *
9531  * This routine is the lock free version of the API invoked to release a
9532  * completion-queue event back into the free pool.
9533  **/
9534 void
9535 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9536                              struct lpfc_cq_event *cq_event)
9537 {
9538         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9539 }
9540
9541 /**
9542  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9543  * @phba: pointer to lpfc hba data structure.
9544  * @cq_event: pointer to the completion queue event to be freed.
9545  *
9546  * This routine is the lock version of the API invoked to release a
9547  * completion-queue event back into the free pool.
9548  **/
9549 void
9550 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9551                            struct lpfc_cq_event *cq_event)
9552 {
9553         unsigned long iflags;
9554         spin_lock_irqsave(&phba->hbalock, iflags);
9555         __lpfc_sli4_cq_event_release(phba, cq_event);
9556         spin_unlock_irqrestore(&phba->hbalock, iflags);
9557 }
9558
9559 /**
9560  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9561  * @phba: pointer to lpfc hba data structure.
9562  *
9563  * This routine is to free all the pending completion-queue events to the
9564  * back into the free pool for device reset.
9565  **/
9566 static void
9567 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9568 {
9569         LIST_HEAD(cqelist);
9570         struct lpfc_cq_event *cqe;
9571         unsigned long iflags;
9572
9573         /* Retrieve all the pending WCQEs from pending WCQE lists */
9574         spin_lock_irqsave(&phba->hbalock, iflags);
9575         /* Pending FCP XRI abort events */
9576         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9577                          &cqelist);
9578         /* Pending ELS XRI abort events */
9579         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9580                          &cqelist);
9581         /* Pending asynnc events */
9582         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9583                          &cqelist);
9584         spin_unlock_irqrestore(&phba->hbalock, iflags);
9585
9586         while (!list_empty(&cqelist)) {
9587                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9588                 lpfc_sli4_cq_event_release(phba, cqe);
9589         }
9590 }
9591
9592 /**
9593  * lpfc_pci_function_reset - Reset pci function.
9594  * @phba: pointer to lpfc hba data structure.
9595  *
9596  * This routine is invoked to request a PCI function reset. It will destroys
9597  * all resources assigned to the PCI function which originates this request.
9598  *
9599  * Return codes
9600  *      0 - successful
9601  *      -ENOMEM - No available memory
9602  *      -EIO - The mailbox failed to complete successfully.
9603  **/
9604 int
9605 lpfc_pci_function_reset(struct lpfc_hba *phba)
9606 {
9607         LPFC_MBOXQ_t *mboxq;
9608         uint32_t rc = 0, if_type;
9609         uint32_t shdr_status, shdr_add_status;
9610         uint32_t rdy_chk;
9611         uint32_t port_reset = 0;
9612         union lpfc_sli4_cfg_shdr *shdr;
9613         struct lpfc_register reg_data;
9614         uint16_t devid;
9615
9616         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9617         switch (if_type) {
9618         case LPFC_SLI_INTF_IF_TYPE_0:
9619                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9620                                                        GFP_KERNEL);
9621                 if (!mboxq) {
9622                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9623                                         "0494 Unable to allocate memory for "
9624                                         "issuing SLI_FUNCTION_RESET mailbox "
9625                                         "command\n");
9626                         return -ENOMEM;
9627                 }
9628
9629                 /* Setup PCI function reset mailbox-ioctl command */
9630                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9631                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9632                                  LPFC_SLI4_MBX_EMBED);
9633                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9634                 shdr = (union lpfc_sli4_cfg_shdr *)
9635                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9636                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9637                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9638                                          &shdr->response);
9639                 if (rc != MBX_TIMEOUT)
9640                         mempool_free(mboxq, phba->mbox_mem_pool);
9641                 if (shdr_status || shdr_add_status || rc) {
9642                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9643                                         "0495 SLI_FUNCTION_RESET mailbox "
9644                                         "failed with status x%x add_status x%x,"
9645                                         " mbx status x%x\n",
9646                                         shdr_status, shdr_add_status, rc);
9647                         rc = -ENXIO;
9648                 }
9649                 break;
9650         case LPFC_SLI_INTF_IF_TYPE_2:
9651         case LPFC_SLI_INTF_IF_TYPE_6:
9652 wait:
9653                 /*
9654                  * Poll the Port Status Register and wait for RDY for
9655                  * up to 30 seconds. If the port doesn't respond, treat
9656                  * it as an error.
9657                  */
9658                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9659                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9660                                 STATUSregaddr, &reg_data.word0)) {
9661                                 rc = -ENODEV;
9662                                 goto out;
9663                         }
9664                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9665                                 break;
9666                         msleep(20);
9667                 }
9668
9669                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9670                         phba->work_status[0] = readl(
9671                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9672                         phba->work_status[1] = readl(
9673                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9674                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9675                                         "2890 Port not ready, port status reg "
9676                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9677                                         reg_data.word0,
9678                                         phba->work_status[0],
9679                                         phba->work_status[1]);
9680                         rc = -ENODEV;
9681                         goto out;
9682                 }
9683
9684                 if (!port_reset) {
9685                         /*
9686                          * Reset the port now
9687                          */
9688                         reg_data.word0 = 0;
9689                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9690                                LPFC_SLIPORT_LITTLE_ENDIAN);
9691                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9692                                LPFC_SLIPORT_INIT_PORT);
9693                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9694                                CTRLregaddr);
9695                         /* flush */
9696                         pci_read_config_word(phba->pcidev,
9697                                              PCI_DEVICE_ID, &devid);
9698
9699                         port_reset = 1;
9700                         msleep(20);
9701                         goto wait;
9702                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9703                         rc = -ENODEV;
9704                         goto out;
9705                 }
9706                 break;
9707
9708         case LPFC_SLI_INTF_IF_TYPE_1:
9709         default:
9710                 break;
9711         }
9712
9713 out:
9714         /* Catch the not-ready port failure after a port reset. */
9715         if (rc) {
9716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9717                                 "3317 HBA not functional: IP Reset Failed "
9718                                 "try: echo fw_reset > board_mode\n");
9719                 rc = -ENODEV;
9720         }
9721
9722         return rc;
9723 }
9724
9725 /**
9726  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9727  * @phba: pointer to lpfc hba data structure.
9728  *
9729  * This routine is invoked to set up the PCI device memory space for device
9730  * with SLI-4 interface spec.
9731  *
9732  * Return codes
9733  *      0 - successful
9734  *      other values - error
9735  **/
9736 static int
9737 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9738 {
9739         struct pci_dev *pdev = phba->pcidev;
9740         unsigned long bar0map_len, bar1map_len, bar2map_len;
9741         int error = -ENODEV;
9742         uint32_t if_type;
9743
9744         if (!pdev)
9745                 return error;
9746
9747         /* Set the device DMA mask size */
9748         if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
9749             dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
9750                 return error;
9751
9752         /*
9753          * The BARs and register set definitions and offset locations are
9754          * dependent on the if_type.
9755          */
9756         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9757                                   &phba->sli4_hba.sli_intf.word0)) {
9758                 return error;
9759         }
9760
9761         /* There is no SLI3 failback for SLI4 devices. */
9762         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9763             LPFC_SLI_INTF_VALID) {
9764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9765                                 "2894 SLI_INTF reg contents invalid "
9766                                 "sli_intf reg 0x%x\n",
9767                                 phba->sli4_hba.sli_intf.word0);
9768                 return error;
9769         }
9770
9771         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9772         /*
9773          * Get the bus address of SLI4 device Bar regions and the
9774          * number of bytes required by each mapping. The mapping of the
9775          * particular PCI BARs regions is dependent on the type of
9776          * SLI4 device.
9777          */
9778         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9779                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9780                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9781
9782                 /*
9783                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9784                  * addr
9785                  */
9786                 phba->sli4_hba.conf_regs_memmap_p =
9787                         ioremap(phba->pci_bar0_map, bar0map_len);
9788                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9789                         dev_printk(KERN_ERR, &pdev->dev,
9790                                    "ioremap failed for SLI4 PCI config "
9791                                    "registers.\n");
9792                         goto out;
9793                 }
9794                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9795                 /* Set up BAR0 PCI config space register memory map */
9796                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9797         } else {
9798                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9799                 bar0map_len = pci_resource_len(pdev, 1);
9800                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9801                         dev_printk(KERN_ERR, &pdev->dev,
9802                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9803                         goto out;
9804                 }
9805                 phba->sli4_hba.conf_regs_memmap_p =
9806                                 ioremap(phba->pci_bar0_map, bar0map_len);
9807                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9808                         dev_printk(KERN_ERR, &pdev->dev,
9809                                 "ioremap failed for SLI4 PCI config "
9810                                 "registers.\n");
9811                                 goto out;
9812                 }
9813                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9814         }
9815
9816         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9817                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
9818                         /*
9819                          * Map SLI4 if type 0 HBA Control Register base to a
9820                          * kernel virtual address and setup the registers.
9821                          */
9822                         phba->pci_bar1_map = pci_resource_start(pdev,
9823                                                                 PCI_64BIT_BAR2);
9824                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9825                         phba->sli4_hba.ctrl_regs_memmap_p =
9826                                         ioremap(phba->pci_bar1_map,
9827                                                 bar1map_len);
9828                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9829                                 dev_err(&pdev->dev,
9830                                            "ioremap failed for SLI4 HBA "
9831                                             "control registers.\n");
9832                                 error = -ENOMEM;
9833                                 goto out_iounmap_conf;
9834                         }
9835                         phba->pci_bar2_memmap_p =
9836                                          phba->sli4_hba.ctrl_regs_memmap_p;
9837                         lpfc_sli4_bar1_register_memmap(phba, if_type);
9838                 } else {
9839                         error = -ENOMEM;
9840                         goto out_iounmap_conf;
9841                 }
9842         }
9843
9844         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
9845             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9846                 /*
9847                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
9848                  * virtual address and setup the registers.
9849                  */
9850                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9851                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9852                 phba->sli4_hba.drbl_regs_memmap_p =
9853                                 ioremap(phba->pci_bar1_map, bar1map_len);
9854                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9855                         dev_err(&pdev->dev,
9856                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9857                         goto out_iounmap_conf;
9858                 }
9859                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9860                 lpfc_sli4_bar1_register_memmap(phba, if_type);
9861         }
9862
9863         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9864                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9865                         /*
9866                          * Map SLI4 if type 0 HBA Doorbell Register base to
9867                          * a kernel virtual address and setup the registers.
9868                          */
9869                         phba->pci_bar2_map = pci_resource_start(pdev,
9870                                                                 PCI_64BIT_BAR4);
9871                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9872                         phba->sli4_hba.drbl_regs_memmap_p =
9873                                         ioremap(phba->pci_bar2_map,
9874                                                 bar2map_len);
9875                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
9876                                 dev_err(&pdev->dev,
9877                                            "ioremap failed for SLI4 HBA"
9878                                            " doorbell registers.\n");
9879                                 error = -ENOMEM;
9880                                 goto out_iounmap_ctrl;
9881                         }
9882                         phba->pci_bar4_memmap_p =
9883                                         phba->sli4_hba.drbl_regs_memmap_p;
9884                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9885                         if (error)
9886                                 goto out_iounmap_all;
9887                 } else {
9888                         error = -ENOMEM;
9889                         goto out_iounmap_all;
9890                 }
9891         }
9892
9893         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
9894             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9895                 /*
9896                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
9897                  * virtual address and setup the registers.
9898                  */
9899                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9900                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9901                 phba->sli4_hba.dpp_regs_memmap_p =
9902                                 ioremap(phba->pci_bar2_map, bar2map_len);
9903                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
9904                         dev_err(&pdev->dev,
9905                            "ioremap failed for SLI4 HBA dpp registers.\n");
9906                         goto out_iounmap_ctrl;
9907                 }
9908                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
9909         }
9910
9911         /* Set up the EQ/CQ register handeling functions now */
9912         switch (if_type) {
9913         case LPFC_SLI_INTF_IF_TYPE_0:
9914         case LPFC_SLI_INTF_IF_TYPE_2:
9915                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
9916                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
9917                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
9918                 break;
9919         case LPFC_SLI_INTF_IF_TYPE_6:
9920                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
9921                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
9922                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
9923                 break;
9924         default:
9925                 break;
9926         }
9927
9928         return 0;
9929
9930 out_iounmap_all:
9931         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9932 out_iounmap_ctrl:
9933         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9934 out_iounmap_conf:
9935         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9936 out:
9937         return error;
9938 }
9939
9940 /**
9941  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9942  * @phba: pointer to lpfc hba data structure.
9943  *
9944  * This routine is invoked to unset the PCI device memory space for device
9945  * with SLI-4 interface spec.
9946  **/
9947 static void
9948 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9949 {
9950         uint32_t if_type;
9951         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9952
9953         switch (if_type) {
9954         case LPFC_SLI_INTF_IF_TYPE_0:
9955                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9956                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9957                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9958                 break;
9959         case LPFC_SLI_INTF_IF_TYPE_2:
9960                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9961                 break;
9962         case LPFC_SLI_INTF_IF_TYPE_6:
9963                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9964                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9965                 break;
9966         case LPFC_SLI_INTF_IF_TYPE_1:
9967         default:
9968                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9969                            "FATAL - unsupported SLI4 interface type - %d\n",
9970                            if_type);
9971                 break;
9972         }
9973 }
9974
9975 /**
9976  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9977  * @phba: pointer to lpfc hba data structure.
9978  *
9979  * This routine is invoked to enable the MSI-X interrupt vectors to device
9980  * with SLI-3 interface specs.
9981  *
9982  * Return codes
9983  *   0 - successful
9984  *   other values - error
9985  **/
9986 static int
9987 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9988 {
9989         int rc;
9990         LPFC_MBOXQ_t *pmb;
9991
9992         /* Set up MSI-X multi-message vectors */
9993         rc = pci_alloc_irq_vectors(phba->pcidev,
9994                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9995         if (rc < 0) {
9996                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9997                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9998                 goto vec_fail_out;
9999         }
10000
10001         /*
10002          * Assign MSI-X vectors to interrupt handlers
10003          */
10004
10005         /* vector-0 is associated to slow-path handler */
10006         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10007                          &lpfc_sli_sp_intr_handler, 0,
10008                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10009         if (rc) {
10010                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10011                                 "0421 MSI-X slow-path request_irq failed "
10012                                 "(%d)\n", rc);
10013                 goto msi_fail_out;
10014         }
10015
10016         /* vector-1 is associated to fast-path handler */
10017         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10018                          &lpfc_sli_fp_intr_handler, 0,
10019                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10020
10021         if (rc) {
10022                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10023                                 "0429 MSI-X fast-path request_irq failed "
10024                                 "(%d)\n", rc);
10025                 goto irq_fail_out;
10026         }
10027
10028         /*
10029          * Configure HBA MSI-X attention conditions to messages
10030          */
10031         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10032
10033         if (!pmb) {
10034                 rc = -ENOMEM;
10035                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10036                                 "0474 Unable to allocate memory for issuing "
10037                                 "MBOX_CONFIG_MSI command\n");
10038                 goto mem_fail_out;
10039         }
10040         rc = lpfc_config_msi(phba, pmb);
10041         if (rc)
10042                 goto mbx_fail_out;
10043         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10044         if (rc != MBX_SUCCESS) {
10045                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10046                                 "0351 Config MSI mailbox command failed, "
10047                                 "mbxCmd x%x, mbxStatus x%x\n",
10048                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10049                 goto mbx_fail_out;
10050         }
10051
10052         /* Free memory allocated for mailbox command */
10053         mempool_free(pmb, phba->mbox_mem_pool);
10054         return rc;
10055
10056 mbx_fail_out:
10057         /* Free memory allocated for mailbox command */
10058         mempool_free(pmb, phba->mbox_mem_pool);
10059
10060 mem_fail_out:
10061         /* free the irq already requested */
10062         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10063
10064 irq_fail_out:
10065         /* free the irq already requested */
10066         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10067
10068 msi_fail_out:
10069         /* Unconfigure MSI-X capability structure */
10070         pci_free_irq_vectors(phba->pcidev);
10071
10072 vec_fail_out:
10073         return rc;
10074 }
10075
10076 /**
10077  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10078  * @phba: pointer to lpfc hba data structure.
10079  *
10080  * This routine is invoked to enable the MSI interrupt mode to device with
10081  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10082  * enable the MSI vector. The device driver is responsible for calling the
10083  * request_irq() to register MSI vector with a interrupt the handler, which
10084  * is done in this function.
10085  *
10086  * Return codes
10087  *      0 - successful
10088  *      other values - error
10089  */
10090 static int
10091 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10092 {
10093         int rc;
10094
10095         rc = pci_enable_msi(phba->pcidev);
10096         if (!rc)
10097                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10098                                 "0462 PCI enable MSI mode success.\n");
10099         else {
10100                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10101                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10102                 return rc;
10103         }
10104
10105         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10106                          0, LPFC_DRIVER_NAME, phba);
10107         if (rc) {
10108                 pci_disable_msi(phba->pcidev);
10109                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10110                                 "0478 MSI request_irq failed (%d)\n", rc);
10111         }
10112         return rc;
10113 }
10114
10115 /**
10116  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10117  * @phba: pointer to lpfc hba data structure.
10118  *
10119  * This routine is invoked to enable device interrupt and associate driver's
10120  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10121  * spec. Depends on the interrupt mode configured to the driver, the driver
10122  * will try to fallback from the configured interrupt mode to an interrupt
10123  * mode which is supported by the platform, kernel, and device in the order
10124  * of:
10125  * MSI-X -> MSI -> IRQ.
10126  *
10127  * Return codes
10128  *   0 - successful
10129  *   other values - error
10130  **/
10131 static uint32_t
10132 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10133 {
10134         uint32_t intr_mode = LPFC_INTR_ERROR;
10135         int retval;
10136
10137         if (cfg_mode == 2) {
10138                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10139                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10140                 if (!retval) {
10141                         /* Now, try to enable MSI-X interrupt mode */
10142                         retval = lpfc_sli_enable_msix(phba);
10143                         if (!retval) {
10144                                 /* Indicate initialization to MSI-X mode */
10145                                 phba->intr_type = MSIX;
10146                                 intr_mode = 2;
10147                         }
10148                 }
10149         }
10150
10151         /* Fallback to MSI if MSI-X initialization failed */
10152         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10153                 retval = lpfc_sli_enable_msi(phba);
10154                 if (!retval) {
10155                         /* Indicate initialization to MSI mode */
10156                         phba->intr_type = MSI;
10157                         intr_mode = 1;
10158                 }
10159         }
10160
10161         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10162         if (phba->intr_type == NONE) {
10163                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10164                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10165                 if (!retval) {
10166                         /* Indicate initialization to INTx mode */
10167                         phba->intr_type = INTx;
10168                         intr_mode = 0;
10169                 }
10170         }
10171         return intr_mode;
10172 }
10173
10174 /**
10175  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10176  * @phba: pointer to lpfc hba data structure.
10177  *
10178  * This routine is invoked to disable device interrupt and disassociate the
10179  * driver's interrupt handler(s) from interrupt vector(s) to device with
10180  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10181  * release the interrupt vector(s) for the message signaled interrupt.
10182  **/
10183 static void
10184 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10185 {
10186         int nr_irqs, i;
10187
10188         if (phba->intr_type == MSIX)
10189                 nr_irqs = LPFC_MSIX_VECTORS;
10190         else
10191                 nr_irqs = 1;
10192
10193         for (i = 0; i < nr_irqs; i++)
10194                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10195         pci_free_irq_vectors(phba->pcidev);
10196
10197         /* Reset interrupt management states */
10198         phba->intr_type = NONE;
10199         phba->sli.slistat.sli_intr = 0;
10200 }
10201
10202 /**
10203  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10204  * @phba: pointer to lpfc hba data structure.
10205  * @vectors: number of msix vectors allocated.
10206  *
10207  * The routine will figure out the CPU affinity assignment for every
10208  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
10209  * with a pointer to the CPU mask that defines ALL the CPUs this vector
10210  * can be associated with. If the vector can be unquely associated with
10211  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
10212  * In addition, the CPU to IO channel mapping will be calculated
10213  * and the phba->sli4_hba.cpu_map array will reflect this.
10214  */
10215 static void
10216 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10217 {
10218         struct lpfc_vector_map_info *cpup;
10219         int index = 0;
10220         int vec = 0;
10221         int cpu;
10222 #ifdef CONFIG_X86
10223         struct cpuinfo_x86 *cpuinfo;
10224 #endif
10225
10226         /* Init cpu_map array */
10227         memset(phba->sli4_hba.cpu_map, 0xff,
10228                (sizeof(struct lpfc_vector_map_info) *
10229                phba->sli4_hba.num_present_cpu));
10230
10231         /* Update CPU map with physical id and core id of each CPU */
10232         cpup = phba->sli4_hba.cpu_map;
10233         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
10234 #ifdef CONFIG_X86
10235                 cpuinfo = &cpu_data(cpu);
10236                 cpup->phys_id = cpuinfo->phys_proc_id;
10237                 cpup->core_id = cpuinfo->cpu_core_id;
10238 #else
10239                 /* No distinction between CPUs for other platforms */
10240                 cpup->phys_id = 0;
10241                 cpup->core_id = 0;
10242 #endif
10243                 cpup->channel_id = index;  /* For now round robin */
10244                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
10245                 vec++;
10246                 if (vec >= vectors)
10247                         vec = 0;
10248                 index++;
10249                 if (index >= phba->cfg_fcp_io_channel)
10250                         index = 0;
10251                 cpup++;
10252         }
10253 }
10254
10255
10256 /**
10257  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10258  * @phba: pointer to lpfc hba data structure.
10259  *
10260  * This routine is invoked to enable the MSI-X interrupt vectors to device
10261  * with SLI-4 interface spec.
10262  *
10263  * Return codes
10264  * 0 - successful
10265  * other values - error
10266  **/
10267 static int
10268 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10269 {
10270         int vectors, rc, index;
10271         char *name;
10272
10273         /* Set up MSI-X multi-message vectors */
10274         vectors = phba->io_channel_irqs;
10275         if (phba->cfg_fof)
10276                 vectors++;
10277
10278         rc = pci_alloc_irq_vectors(phba->pcidev,
10279                                 (phba->nvmet_support) ? 1 : 2,
10280                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10281         if (rc < 0) {
10282                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10283                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10284                 goto vec_fail_out;
10285         }
10286         vectors = rc;
10287
10288         /* Assign MSI-X vectors to interrupt handlers */
10289         for (index = 0; index < vectors; index++) {
10290                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10291                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10292                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10293                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10294
10295                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10296                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10297                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
10298                 if (phba->cfg_fof && (index == (vectors - 1)))
10299                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10300                                  &lpfc_sli4_fof_intr_handler, 0,
10301                                  name,
10302                                  &phba->sli4_hba.hba_eq_hdl[index]);
10303                 else
10304                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10305                                  &lpfc_sli4_hba_intr_handler, 0,
10306                                  name,
10307                                  &phba->sli4_hba.hba_eq_hdl[index]);
10308                 if (rc) {
10309                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10310                                         "0486 MSI-X fast-path (%d) "
10311                                         "request_irq failed (%d)\n", index, rc);
10312                         goto cfg_fail_out;
10313                 }
10314         }
10315
10316         if (phba->cfg_fof)
10317                 vectors--;
10318
10319         if (vectors != phba->io_channel_irqs) {
10320                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10321                                 "3238 Reducing IO channels to match number of "
10322                                 "MSI-X vectors, requested %d got %d\n",
10323                                 phba->io_channel_irqs, vectors);
10324                 if (phba->cfg_fcp_io_channel > vectors)
10325                         phba->cfg_fcp_io_channel = vectors;
10326                 if (phba->cfg_nvme_io_channel > vectors)
10327                         phba->cfg_nvme_io_channel = vectors;
10328                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
10329                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10330                 else
10331                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
10332         }
10333         lpfc_cpu_affinity_check(phba, vectors);
10334
10335         return rc;
10336
10337 cfg_fail_out:
10338         /* free the irq already requested */
10339         for (--index; index >= 0; index--)
10340                 free_irq(pci_irq_vector(phba->pcidev, index),
10341                                 &phba->sli4_hba.hba_eq_hdl[index]);
10342
10343         /* Unconfigure MSI-X capability structure */
10344         pci_free_irq_vectors(phba->pcidev);
10345
10346 vec_fail_out:
10347         return rc;
10348 }
10349
10350 /**
10351  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10352  * @phba: pointer to lpfc hba data structure.
10353  *
10354  * This routine is invoked to enable the MSI interrupt mode to device with
10355  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10356  * to enable the MSI vector. The device driver is responsible for calling
10357  * the request_irq() to register MSI vector with a interrupt the handler,
10358  * which is done in this function.
10359  *
10360  * Return codes
10361  *      0 - successful
10362  *      other values - error
10363  **/
10364 static int
10365 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10366 {
10367         int rc, index;
10368
10369         rc = pci_enable_msi(phba->pcidev);
10370         if (!rc)
10371                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10372                                 "0487 PCI enable MSI mode success.\n");
10373         else {
10374                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10375                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10376                 return rc;
10377         }
10378
10379         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10380                          0, LPFC_DRIVER_NAME, phba);
10381         if (rc) {
10382                 pci_disable_msi(phba->pcidev);
10383                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10384                                 "0490 MSI request_irq failed (%d)\n", rc);
10385                 return rc;
10386         }
10387
10388         for (index = 0; index < phba->io_channel_irqs; index++) {
10389                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10390                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10391         }
10392
10393         if (phba->cfg_fof) {
10394                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10395                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10396         }
10397         return 0;
10398 }
10399
10400 /**
10401  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10402  * @phba: pointer to lpfc hba data structure.
10403  *
10404  * This routine is invoked to enable device interrupt and associate driver's
10405  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10406  * interface spec. Depends on the interrupt mode configured to the driver,
10407  * the driver will try to fallback from the configured interrupt mode to an
10408  * interrupt mode which is supported by the platform, kernel, and device in
10409  * the order of:
10410  * MSI-X -> MSI -> IRQ.
10411  *
10412  * Return codes
10413  *      0 - successful
10414  *      other values - error
10415  **/
10416 static uint32_t
10417 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10418 {
10419         uint32_t intr_mode = LPFC_INTR_ERROR;
10420         int retval, idx;
10421
10422         if (cfg_mode == 2) {
10423                 /* Preparation before conf_msi mbox cmd */
10424                 retval = 0;
10425                 if (!retval) {
10426                         /* Now, try to enable MSI-X interrupt mode */
10427                         retval = lpfc_sli4_enable_msix(phba);
10428                         if (!retval) {
10429                                 /* Indicate initialization to MSI-X mode */
10430                                 phba->intr_type = MSIX;
10431                                 intr_mode = 2;
10432                         }
10433                 }
10434         }
10435
10436         /* Fallback to MSI if MSI-X initialization failed */
10437         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10438                 retval = lpfc_sli4_enable_msi(phba);
10439                 if (!retval) {
10440                         /* Indicate initialization to MSI mode */
10441                         phba->intr_type = MSI;
10442                         intr_mode = 1;
10443                 }
10444         }
10445
10446         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10447         if (phba->intr_type == NONE) {
10448                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10449                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10450                 if (!retval) {
10451                         struct lpfc_hba_eq_hdl *eqhdl;
10452
10453                         /* Indicate initialization to INTx mode */
10454                         phba->intr_type = INTx;
10455                         intr_mode = 0;
10456
10457                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
10458                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10459                                 eqhdl->idx = idx;
10460                                 eqhdl->phba = phba;
10461                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10462                         }
10463                         if (phba->cfg_fof) {
10464                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10465                                 eqhdl->idx = idx;
10466                                 eqhdl->phba = phba;
10467                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10468                         }
10469                 }
10470         }
10471         return intr_mode;
10472 }
10473
10474 /**
10475  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10476  * @phba: pointer to lpfc hba data structure.
10477  *
10478  * This routine is invoked to disable device interrupt and disassociate
10479  * the driver's interrupt handler(s) from interrupt vector(s) to device
10480  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10481  * will release the interrupt vector(s) for the message signaled interrupt.
10482  **/
10483 static void
10484 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10485 {
10486         /* Disable the currently initialized interrupt mode */
10487         if (phba->intr_type == MSIX) {
10488                 int index;
10489
10490                 /* Free up MSI-X multi-message vectors */
10491                 for (index = 0; index < phba->io_channel_irqs; index++)
10492                         free_irq(pci_irq_vector(phba->pcidev, index),
10493                                         &phba->sli4_hba.hba_eq_hdl[index]);
10494
10495                 if (phba->cfg_fof)
10496                         free_irq(pci_irq_vector(phba->pcidev, index),
10497                                         &phba->sli4_hba.hba_eq_hdl[index]);
10498         } else {
10499                 free_irq(phba->pcidev->irq, phba);
10500         }
10501
10502         pci_free_irq_vectors(phba->pcidev);
10503
10504         /* Reset interrupt management states */
10505         phba->intr_type = NONE;
10506         phba->sli.slistat.sli_intr = 0;
10507 }
10508
10509 /**
10510  * lpfc_unset_hba - Unset SLI3 hba device initialization
10511  * @phba: pointer to lpfc hba data structure.
10512  *
10513  * This routine is invoked to unset the HBA device initialization steps to
10514  * a device with SLI-3 interface spec.
10515  **/
10516 static void
10517 lpfc_unset_hba(struct lpfc_hba *phba)
10518 {
10519         struct lpfc_vport *vport = phba->pport;
10520         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10521
10522         spin_lock_irq(shost->host_lock);
10523         vport->load_flag |= FC_UNLOADING;
10524         spin_unlock_irq(shost->host_lock);
10525
10526         kfree(phba->vpi_bmask);
10527         kfree(phba->vpi_ids);
10528
10529         lpfc_stop_hba_timers(phba);
10530
10531         phba->pport->work_port_events = 0;
10532
10533         lpfc_sli_hba_down(phba);
10534
10535         lpfc_sli_brdrestart(phba);
10536
10537         lpfc_sli_disable_intr(phba);
10538
10539         return;
10540 }
10541
10542 /**
10543  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10544  * @phba: Pointer to HBA context object.
10545  *
10546  * This function is called in the SLI4 code path to wait for completion
10547  * of device's XRIs exchange busy. It will check the XRI exchange busy
10548  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10549  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10550  * I/Os every 30 seconds, log error message, and wait forever. Only when
10551  * all XRI exchange busy complete, the driver unload shall proceed with
10552  * invoking the function reset ioctl mailbox command to the CNA and the
10553  * the rest of the driver unload resource release.
10554  **/
10555 static void
10556 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10557 {
10558         int wait_time = 0;
10559         int nvme_xri_cmpl = 1;
10560         int nvmet_xri_cmpl = 1;
10561         int fcp_xri_cmpl = 1;
10562         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10563
10564         /* Driver just aborted IOs during the hba_unset process.  Pause
10565          * here to give the HBA time to complete the IO and get entries
10566          * into the abts lists.
10567          */
10568         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10569
10570         /* Wait for NVME pending IO to flush back to transport. */
10571         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10572                 lpfc_nvme_wait_for_io_drain(phba);
10573
10574         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10575                 fcp_xri_cmpl =
10576                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10577         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10578                 nvme_xri_cmpl =
10579                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10580                 nvmet_xri_cmpl =
10581                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10582         }
10583
10584         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10585                !nvmet_xri_cmpl) {
10586                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10587                         if (!nvmet_xri_cmpl)
10588                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10589                                                 "6424 NVMET XRI exchange busy "
10590                                                 "wait time: %d seconds.\n",
10591                                                 wait_time/1000);
10592                         if (!nvme_xri_cmpl)
10593                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10594                                                 "6100 NVME XRI exchange busy "
10595                                                 "wait time: %d seconds.\n",
10596                                                 wait_time/1000);
10597                         if (!fcp_xri_cmpl)
10598                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10599                                                 "2877 FCP XRI exchange busy "
10600                                                 "wait time: %d seconds.\n",
10601                                                 wait_time/1000);
10602                         if (!els_xri_cmpl)
10603                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10604                                                 "2878 ELS XRI exchange busy "
10605                                                 "wait time: %d seconds.\n",
10606                                                 wait_time/1000);
10607                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10608                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10609                 } else {
10610                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10611                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10612                 }
10613                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10614                         nvme_xri_cmpl = list_empty(
10615                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10616                         nvmet_xri_cmpl = list_empty(
10617                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10618                 }
10619
10620                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10621                         fcp_xri_cmpl = list_empty(
10622                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10623
10624                 els_xri_cmpl =
10625                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10626
10627         }
10628 }
10629
10630 /**
10631  * lpfc_sli4_hba_unset - Unset the fcoe hba
10632  * @phba: Pointer to HBA context object.
10633  *
10634  * This function is called in the SLI4 code path to reset the HBA's FCoE
10635  * function. The caller is not required to hold any lock. This routine
10636  * issues PCI function reset mailbox command to reset the FCoE function.
10637  * At the end of the function, it calls lpfc_hba_down_post function to
10638  * free any pending commands.
10639  **/
10640 static void
10641 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10642 {
10643         int wait_cnt = 0;
10644         LPFC_MBOXQ_t *mboxq;
10645         struct pci_dev *pdev = phba->pcidev;
10646
10647         lpfc_stop_hba_timers(phba);
10648         phba->sli4_hba.intr_enable = 0;
10649
10650         /*
10651          * Gracefully wait out the potential current outstanding asynchronous
10652          * mailbox command.
10653          */
10654
10655         /* First, block any pending async mailbox command from posted */
10656         spin_lock_irq(&phba->hbalock);
10657         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10658         spin_unlock_irq(&phba->hbalock);
10659         /* Now, trying to wait it out if we can */
10660         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10661                 msleep(10);
10662                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10663                         break;
10664         }
10665         /* Forcefully release the outstanding mailbox command if timed out */
10666         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10667                 spin_lock_irq(&phba->hbalock);
10668                 mboxq = phba->sli.mbox_active;
10669                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10670                 __lpfc_mbox_cmpl_put(phba, mboxq);
10671                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10672                 phba->sli.mbox_active = NULL;
10673                 spin_unlock_irq(&phba->hbalock);
10674         }
10675
10676         /* Abort all iocbs associated with the hba */
10677         lpfc_sli_hba_iocb_abort(phba);
10678
10679         /* Wait for completion of device XRI exchange busy */
10680         lpfc_sli4_xri_exchange_busy_wait(phba);
10681
10682         /* Disable PCI subsystem interrupt */
10683         lpfc_sli4_disable_intr(phba);
10684
10685         /* Disable SR-IOV if enabled */
10686         if (phba->cfg_sriov_nr_virtfn)
10687                 pci_disable_sriov(pdev);
10688
10689         /* Stop kthread signal shall trigger work_done one more time */
10690         kthread_stop(phba->worker_thread);
10691
10692         /* Disable FW logging to host memory */
10693         lpfc_ras_stop_fwlog(phba);
10694
10695         /* Unset the queues shared with the hardware then release all
10696          * allocated resources.
10697          */
10698         lpfc_sli4_queue_unset(phba);
10699         lpfc_sli4_queue_destroy(phba);
10700
10701         /* Reset SLI4 HBA FCoE function */
10702         lpfc_pci_function_reset(phba);
10703
10704         /* Free RAS DMA memory */
10705         if (phba->ras_fwlog.ras_enabled)
10706                 lpfc_sli4_ras_dma_free(phba);
10707
10708         /* Stop the SLI4 device port */
10709         phba->pport->work_port_events = 0;
10710 }
10711
10712  /**
10713  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10714  * @phba: Pointer to HBA context object.
10715  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10716  *
10717  * This function is called in the SLI4 code path to read the port's
10718  * sli4 capabilities.
10719  *
10720  * This function may be be called from any context that can block-wait
10721  * for the completion.  The expectation is that this routine is called
10722  * typically from probe_one or from the online routine.
10723  **/
10724 int
10725 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10726 {
10727         int rc;
10728         struct lpfc_mqe *mqe;
10729         struct lpfc_pc_sli4_params *sli4_params;
10730         uint32_t mbox_tmo;
10731
10732         rc = 0;
10733         mqe = &mboxq->u.mqe;
10734
10735         /* Read the port's SLI4 Parameters port capabilities */
10736         lpfc_pc_sli4_params(mboxq);
10737         if (!phba->sli4_hba.intr_enable)
10738                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10739         else {
10740                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10741                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10742         }
10743
10744         if (unlikely(rc))
10745                 return 1;
10746
10747         sli4_params = &phba->sli4_hba.pc_sli4_params;
10748         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10749         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10750         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10751         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10752                                              &mqe->un.sli4_params);
10753         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10754                                              &mqe->un.sli4_params);
10755         sli4_params->proto_types = mqe->un.sli4_params.word3;
10756         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10757         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10758         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10759         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10760         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10761         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10762         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10763         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10764         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10765         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10766         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10767         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10768         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10769         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10770         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10771         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10772         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10773         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10774         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10775         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10776
10777         /* Make sure that sge_supp_len can be handled by the driver */
10778         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10779                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10780
10781         return rc;
10782 }
10783
10784 /**
10785  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10786  * @phba: Pointer to HBA context object.
10787  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10788  *
10789  * This function is called in the SLI4 code path to read the port's
10790  * sli4 capabilities.
10791  *
10792  * This function may be be called from any context that can block-wait
10793  * for the completion.  The expectation is that this routine is called
10794  * typically from probe_one or from the online routine.
10795  **/
10796 int
10797 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10798 {
10799         int rc;
10800         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10801         struct lpfc_pc_sli4_params *sli4_params;
10802         uint32_t mbox_tmo;
10803         int length;
10804         bool exp_wqcq_pages = true;
10805         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10806
10807         /*
10808          * By default, the driver assumes the SLI4 port requires RPI
10809          * header postings.  The SLI4_PARAM response will correct this
10810          * assumption.
10811          */
10812         phba->sli4_hba.rpi_hdrs_in_use = 1;
10813
10814         /* Read the port's SLI4 Config Parameters */
10815         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10816                   sizeof(struct lpfc_sli4_cfg_mhdr));
10817         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10818                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10819                          length, LPFC_SLI4_MBX_EMBED);
10820         if (!phba->sli4_hba.intr_enable)
10821                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10822         else {
10823                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10824                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10825         }
10826         if (unlikely(rc))
10827                 return rc;
10828         sli4_params = &phba->sli4_hba.pc_sli4_params;
10829         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10830         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10831         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10832         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10833         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10834                                              mbx_sli4_parameters);
10835         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10836                                              mbx_sli4_parameters);
10837         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10838                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10839         else
10840                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10841         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10842         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10843         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10844         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10845         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10846         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10847         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10848         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
10849         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
10850         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10851         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
10852         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10853                                             mbx_sli4_parameters);
10854         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10855         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10856                                            mbx_sli4_parameters);
10857         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10858         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10859         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10860                               bf_get(cfg_xib, mbx_sli4_parameters));
10861
10862         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10863             !phba->nvme_support) {
10864                 phba->nvme_support = 0;
10865                 phba->nvmet_support = 0;
10866                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
10867                 phba->cfg_nvme_io_channel = 0;
10868                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10869                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10870                                 "6101 Disabling NVME support: "
10871                                 "Not supported by firmware: %d %d\n",
10872                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10873                                 bf_get(cfg_xib, mbx_sli4_parameters));
10874
10875                 /* If firmware doesn't support NVME, just use SCSI support */
10876                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10877                         return -ENODEV;
10878                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10879         }
10880
10881         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
10882         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10883             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
10884                 phba->cfg_enable_pbde = 0;
10885
10886         /*
10887          * To support Suppress Response feature we must satisfy 3 conditions.
10888          * lpfc_suppress_rsp module parameter must be set (default).
10889          * In SLI4-Parameters Descriptor:
10890          * Extended Inline Buffers (XIB) must be supported.
10891          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
10892          * (double negative).
10893          */
10894         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
10895             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
10896                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10897         else
10898                 phba->cfg_suppress_rsp = 0;
10899
10900         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10901                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10902
10903         /* Make sure that sge_supp_len can be handled by the driver */
10904         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10905                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10906
10907         /*
10908          * Check whether the adapter supports an embedded copy of the
10909          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
10910          * to use this option, 128-byte WQEs must be used.
10911          */
10912         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10913                 phba->fcp_embed_io = 1;
10914         else
10915                 phba->fcp_embed_io = 0;
10916
10917         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
10918                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
10919                         bf_get(cfg_xib, mbx_sli4_parameters),
10920                         phba->cfg_enable_pbde,
10921                         phba->fcp_embed_io, phba->nvme_support,
10922                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
10923
10924         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10925             LPFC_SLI_INTF_IF_TYPE_2) &&
10926             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
10927                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
10928                 exp_wqcq_pages = false;
10929
10930         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
10931             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
10932             exp_wqcq_pages &&
10933             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
10934                 phba->enab_exp_wqcq_pages = 1;
10935         else
10936                 phba->enab_exp_wqcq_pages = 0;
10937         /*
10938          * Check if the SLI port supports MDS Diagnostics
10939          */
10940         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10941                 phba->mds_diags_support = 1;
10942         else
10943                 phba->mds_diags_support = 0;
10944
10945         return 0;
10946 }
10947
10948 /**
10949  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10950  * @pdev: pointer to PCI device
10951  * @pid: pointer to PCI device identifier
10952  *
10953  * This routine is to be called to attach a device with SLI-3 interface spec
10954  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10955  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10956  * information of the device and driver to see if the driver state that it can
10957  * support this kind of device. If the match is successful, the driver core
10958  * invokes this routine. If this routine determines it can claim the HBA, it
10959  * does all the initialization that it needs to do to handle the HBA properly.
10960  *
10961  * Return code
10962  *      0 - driver can claim the device
10963  *      negative value - driver can not claim the device
10964  **/
10965 static int
10966 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10967 {
10968         struct lpfc_hba   *phba;
10969         struct lpfc_vport *vport = NULL;
10970         struct Scsi_Host  *shost = NULL;
10971         int error;
10972         uint32_t cfg_mode, intr_mode;
10973
10974         /* Allocate memory for HBA structure */
10975         phba = lpfc_hba_alloc(pdev);
10976         if (!phba)
10977                 return -ENOMEM;
10978
10979         /* Perform generic PCI device enabling operation */
10980         error = lpfc_enable_pci_dev(phba);
10981         if (error)
10982                 goto out_free_phba;
10983
10984         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10985         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10986         if (error)
10987                 goto out_disable_pci_dev;
10988
10989         /* Set up SLI-3 specific device PCI memory space */
10990         error = lpfc_sli_pci_mem_setup(phba);
10991         if (error) {
10992                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10993                                 "1402 Failed to set up pci memory space.\n");
10994                 goto out_disable_pci_dev;
10995         }
10996
10997         /* Set up SLI-3 specific device driver resources */
10998         error = lpfc_sli_driver_resource_setup(phba);
10999         if (error) {
11000                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11001                                 "1404 Failed to set up driver resource.\n");
11002                 goto out_unset_pci_mem_s3;
11003         }
11004
11005         /* Initialize and populate the iocb list per host */
11006
11007         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11008         if (error) {
11009                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11010                                 "1405 Failed to initialize iocb list.\n");
11011                 goto out_unset_driver_resource_s3;
11012         }
11013
11014         /* Set up common device driver resources */
11015         error = lpfc_setup_driver_resource_phase2(phba);
11016         if (error) {
11017                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11018                                 "1406 Failed to set up driver resource.\n");
11019                 goto out_free_iocb_list;
11020         }
11021
11022         /* Get the default values for Model Name and Description */
11023         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11024
11025         /* Create SCSI host to the physical port */
11026         error = lpfc_create_shost(phba);
11027         if (error) {
11028                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11029                                 "1407 Failed to create scsi host.\n");
11030                 goto out_unset_driver_resource;
11031         }
11032
11033         /* Configure sysfs attributes */
11034         vport = phba->pport;
11035         error = lpfc_alloc_sysfs_attr(vport);
11036         if (error) {
11037                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11038                                 "1476 Failed to allocate sysfs attr\n");
11039                 goto out_destroy_shost;
11040         }
11041
11042         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11043         /* Now, trying to enable interrupt and bring up the device */
11044         cfg_mode = phba->cfg_use_msi;
11045         while (true) {
11046                 /* Put device to a known state before enabling interrupt */
11047                 lpfc_stop_port(phba);
11048                 /* Configure and enable interrupt */
11049                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11050                 if (intr_mode == LPFC_INTR_ERROR) {
11051                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11052                                         "0431 Failed to enable interrupt.\n");
11053                         error = -ENODEV;
11054                         goto out_free_sysfs_attr;
11055                 }
11056                 /* SLI-3 HBA setup */
11057                 if (lpfc_sli_hba_setup(phba)) {
11058                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11059                                         "1477 Failed to set up hba\n");
11060                         error = -ENODEV;
11061                         goto out_remove_device;
11062                 }
11063
11064                 /* Wait 50ms for the interrupts of previous mailbox commands */
11065                 msleep(50);
11066                 /* Check active interrupts on message signaled interrupts */
11067                 if (intr_mode == 0 ||
11068                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11069                         /* Log the current active interrupt mode */
11070                         phba->intr_mode = intr_mode;
11071                         lpfc_log_intr_mode(phba, intr_mode);
11072                         break;
11073                 } else {
11074                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11075                                         "0447 Configure interrupt mode (%d) "
11076                                         "failed active interrupt test.\n",
11077                                         intr_mode);
11078                         /* Disable the current interrupt mode */
11079                         lpfc_sli_disable_intr(phba);
11080                         /* Try next level of interrupt mode */
11081                         cfg_mode = --intr_mode;
11082                 }
11083         }
11084
11085         /* Perform post initialization setup */
11086         lpfc_post_init_setup(phba);
11087
11088         /* Check if there are static vports to be created. */
11089         lpfc_create_static_vport(phba);
11090
11091         return 0;
11092
11093 out_remove_device:
11094         lpfc_unset_hba(phba);
11095 out_free_sysfs_attr:
11096         lpfc_free_sysfs_attr(vport);
11097 out_destroy_shost:
11098         lpfc_destroy_shost(phba);
11099 out_unset_driver_resource:
11100         lpfc_unset_driver_resource_phase2(phba);
11101 out_free_iocb_list:
11102         lpfc_free_iocb_list(phba);
11103 out_unset_driver_resource_s3:
11104         lpfc_sli_driver_resource_unset(phba);
11105 out_unset_pci_mem_s3:
11106         lpfc_sli_pci_mem_unset(phba);
11107 out_disable_pci_dev:
11108         lpfc_disable_pci_dev(phba);
11109         if (shost)
11110                 scsi_host_put(shost);
11111 out_free_phba:
11112         lpfc_hba_free(phba);
11113         return error;
11114 }
11115
11116 /**
11117  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11118  * @pdev: pointer to PCI device
11119  *
11120  * This routine is to be called to disattach a device with SLI-3 interface
11121  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11122  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11123  * device to be removed from the PCI subsystem properly.
11124  **/
11125 static void
11126 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11127 {
11128         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11129         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11130         struct lpfc_vport **vports;
11131         struct lpfc_hba   *phba = vport->phba;
11132         int i;
11133
11134         spin_lock_irq(&phba->hbalock);
11135         vport->load_flag |= FC_UNLOADING;
11136         spin_unlock_irq(&phba->hbalock);
11137
11138         lpfc_free_sysfs_attr(vport);
11139
11140         /* Release all the vports against this physical port */
11141         vports = lpfc_create_vport_work_array(phba);
11142         if (vports != NULL)
11143                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11144                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11145                                 continue;
11146                         fc_vport_terminate(vports[i]->fc_vport);
11147                 }
11148         lpfc_destroy_vport_work_array(phba, vports);
11149
11150         /* Remove FC host and then SCSI host with the physical port */
11151         fc_remove_host(shost);
11152         scsi_remove_host(shost);
11153
11154         lpfc_cleanup(vport);
11155
11156         /*
11157          * Bring down the SLI Layer. This step disable all interrupts,
11158          * clears the rings, discards all mailbox commands, and resets
11159          * the HBA.
11160          */
11161
11162         /* HBA interrupt will be disabled after this call */
11163         lpfc_sli_hba_down(phba);
11164         /* Stop kthread signal shall trigger work_done one more time */
11165         kthread_stop(phba->worker_thread);
11166         /* Final cleanup of txcmplq and reset the HBA */
11167         lpfc_sli_brdrestart(phba);
11168
11169         kfree(phba->vpi_bmask);
11170         kfree(phba->vpi_ids);
11171
11172         lpfc_stop_hba_timers(phba);
11173         spin_lock_irq(&phba->port_list_lock);
11174         list_del_init(&vport->listentry);
11175         spin_unlock_irq(&phba->port_list_lock);
11176
11177         lpfc_debugfs_terminate(vport);
11178
11179         /* Disable SR-IOV if enabled */
11180         if (phba->cfg_sriov_nr_virtfn)
11181                 pci_disable_sriov(pdev);
11182
11183         /* Disable interrupt */
11184         lpfc_sli_disable_intr(phba);
11185
11186         scsi_host_put(shost);
11187
11188         /*
11189          * Call scsi_free before mem_free since scsi bufs are released to their
11190          * corresponding pools here.
11191          */
11192         lpfc_scsi_free(phba);
11193         lpfc_mem_free_all(phba);
11194
11195         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11196                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11197
11198         /* Free resources associated with SLI2 interface */
11199         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11200                           phba->slim2p.virt, phba->slim2p.phys);
11201
11202         /* unmap adapter SLIM and Control Registers */
11203         iounmap(phba->ctrl_regs_memmap_p);
11204         iounmap(phba->slim_memmap_p);
11205
11206         lpfc_hba_free(phba);
11207
11208         pci_release_mem_regions(pdev);
11209         pci_disable_device(pdev);
11210 }
11211
11212 /**
11213  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11214  * @pdev: pointer to PCI device
11215  * @msg: power management message
11216  *
11217  * This routine is to be called from the kernel's PCI subsystem to support
11218  * system Power Management (PM) to device with SLI-3 interface spec. When
11219  * PM invokes this method, it quiesces the device by stopping the driver's
11220  * worker thread for the device, turning off device's interrupt and DMA,
11221  * and bring the device offline. Note that as the driver implements the
11222  * minimum PM requirements to a power-aware driver's PM support for the
11223  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11224  * to the suspend() method call will be treated as SUSPEND and the driver will
11225  * fully reinitialize its device during resume() method call, the driver will
11226  * set device to PCI_D3hot state in PCI config space instead of setting it
11227  * according to the @msg provided by the PM.
11228  *
11229  * Return code
11230  *      0 - driver suspended the device
11231  *      Error otherwise
11232  **/
11233 static int
11234 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11235 {
11236         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11237         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11238
11239         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11240                         "0473 PCI device Power Management suspend.\n");
11241
11242         /* Bring down the device */
11243         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11244         lpfc_offline(phba);
11245         kthread_stop(phba->worker_thread);
11246
11247         /* Disable interrupt from device */
11248         lpfc_sli_disable_intr(phba);
11249
11250         /* Save device state to PCI config space */
11251         pci_save_state(pdev);
11252         pci_set_power_state(pdev, PCI_D3hot);
11253
11254         return 0;
11255 }
11256
11257 /**
11258  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11259  * @pdev: pointer to PCI device
11260  *
11261  * This routine is to be called from the kernel's PCI subsystem to support
11262  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11263  * invokes this method, it restores the device's PCI config space state and
11264  * fully reinitializes the device and brings it online. Note that as the
11265  * driver implements the minimum PM requirements to a power-aware driver's
11266  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11267  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11268  * driver will fully reinitialize its device during resume() method call,
11269  * the device will be set to PCI_D0 directly in PCI config space before
11270  * restoring the state.
11271  *
11272  * Return code
11273  *      0 - driver suspended the device
11274  *      Error otherwise
11275  **/
11276 static int
11277 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11278 {
11279         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11280         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11281         uint32_t intr_mode;
11282         int error;
11283
11284         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11285                         "0452 PCI device Power Management resume.\n");
11286
11287         /* Restore device state from PCI config space */
11288         pci_set_power_state(pdev, PCI_D0);
11289         pci_restore_state(pdev);
11290
11291         /*
11292          * As the new kernel behavior of pci_restore_state() API call clears
11293          * device saved_state flag, need to save the restored state again.
11294          */
11295         pci_save_state(pdev);
11296
11297         if (pdev->is_busmaster)
11298                 pci_set_master(pdev);
11299
11300         /* Startup the kernel thread for this host adapter. */
11301         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11302                                         "lpfc_worker_%d", phba->brd_no);
11303         if (IS_ERR(phba->worker_thread)) {
11304                 error = PTR_ERR(phba->worker_thread);
11305                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11306                                 "0434 PM resume failed to start worker "
11307                                 "thread: error=x%x.\n", error);
11308                 return error;
11309         }
11310
11311         /* Configure and enable interrupt */
11312         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11313         if (intr_mode == LPFC_INTR_ERROR) {
11314                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11315                                 "0430 PM resume Failed to enable interrupt\n");
11316                 return -EIO;
11317         } else
11318                 phba->intr_mode = intr_mode;
11319
11320         /* Restart HBA and bring it online */
11321         lpfc_sli_brdrestart(phba);
11322         lpfc_online(phba);
11323
11324         /* Log the current active interrupt mode */
11325         lpfc_log_intr_mode(phba, phba->intr_mode);
11326
11327         return 0;
11328 }
11329
11330 /**
11331  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11332  * @phba: pointer to lpfc hba data structure.
11333  *
11334  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11335  * aborts all the outstanding SCSI I/Os to the pci device.
11336  **/
11337 static void
11338 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11339 {
11340         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11341                         "2723 PCI channel I/O abort preparing for recovery\n");
11342
11343         /*
11344          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11345          * and let the SCSI mid-layer to retry them to recover.
11346          */
11347         lpfc_sli_abort_fcp_rings(phba);
11348 }
11349
11350 /**
11351  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11352  * @phba: pointer to lpfc hba data structure.
11353  *
11354  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11355  * disables the device interrupt and pci device, and aborts the internal FCP
11356  * pending I/Os.
11357  **/
11358 static void
11359 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11360 {
11361         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11362                         "2710 PCI channel disable preparing for reset\n");
11363
11364         /* Block any management I/Os to the device */
11365         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11366
11367         /* Block all SCSI devices' I/Os on the host */
11368         lpfc_scsi_dev_block(phba);
11369
11370         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11371         lpfc_sli_flush_fcp_rings(phba);
11372
11373         /* stop all timers */
11374         lpfc_stop_hba_timers(phba);
11375
11376         /* Disable interrupt and pci device */
11377         lpfc_sli_disable_intr(phba);
11378         pci_disable_device(phba->pcidev);
11379 }
11380
11381 /**
11382  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11383  * @phba: pointer to lpfc hba data structure.
11384  *
11385  * This routine is called to prepare the SLI3 device for PCI slot permanently
11386  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11387  * pending I/Os.
11388  **/
11389 static void
11390 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11391 {
11392         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11393                         "2711 PCI channel permanent disable for failure\n");
11394         /* Block all SCSI devices' I/Os on the host */
11395         lpfc_scsi_dev_block(phba);
11396
11397         /* stop all timers */
11398         lpfc_stop_hba_timers(phba);
11399
11400         /* Clean up all driver's outstanding SCSI I/Os */
11401         lpfc_sli_flush_fcp_rings(phba);
11402 }
11403
11404 /**
11405  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11406  * @pdev: pointer to PCI device.
11407  * @state: the current PCI connection state.
11408  *
11409  * This routine is called from the PCI subsystem for I/O error handling to
11410  * device with SLI-3 interface spec. This function is called by the PCI
11411  * subsystem after a PCI bus error affecting this device has been detected.
11412  * When this function is invoked, it will need to stop all the I/Os and
11413  * interrupt(s) to the device. Once that is done, it will return
11414  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11415  * as desired.
11416  *
11417  * Return codes
11418  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11419  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11420  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11421  **/
11422 static pci_ers_result_t
11423 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11424 {
11425         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11426         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11427
11428         switch (state) {
11429         case pci_channel_io_normal:
11430                 /* Non-fatal error, prepare for recovery */
11431                 lpfc_sli_prep_dev_for_recover(phba);
11432                 return PCI_ERS_RESULT_CAN_RECOVER;
11433         case pci_channel_io_frozen:
11434                 /* Fatal error, prepare for slot reset */
11435                 lpfc_sli_prep_dev_for_reset(phba);
11436                 return PCI_ERS_RESULT_NEED_RESET;
11437         case pci_channel_io_perm_failure:
11438                 /* Permanent failure, prepare for device down */
11439                 lpfc_sli_prep_dev_for_perm_failure(phba);
11440                 return PCI_ERS_RESULT_DISCONNECT;
11441         default:
11442                 /* Unknown state, prepare and request slot reset */
11443                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11444                                 "0472 Unknown PCI error state: x%x\n", state);
11445                 lpfc_sli_prep_dev_for_reset(phba);
11446                 return PCI_ERS_RESULT_NEED_RESET;
11447         }
11448 }
11449
11450 /**
11451  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11452  * @pdev: pointer to PCI device.
11453  *
11454  * This routine is called from the PCI subsystem for error handling to
11455  * device with SLI-3 interface spec. This is called after PCI bus has been
11456  * reset to restart the PCI card from scratch, as if from a cold-boot.
11457  * During the PCI subsystem error recovery, after driver returns
11458  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11459  * recovery and then call this routine before calling the .resume method
11460  * to recover the device. This function will initialize the HBA device,
11461  * enable the interrupt, but it will just put the HBA to offline state
11462  * without passing any I/O traffic.
11463  *
11464  * Return codes
11465  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11466  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11467  */
11468 static pci_ers_result_t
11469 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11470 {
11471         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11472         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11473         struct lpfc_sli *psli = &phba->sli;
11474         uint32_t intr_mode;
11475
11476         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11477         if (pci_enable_device_mem(pdev)) {
11478                 printk(KERN_ERR "lpfc: Cannot re-enable "
11479                         "PCI device after reset.\n");
11480                 return PCI_ERS_RESULT_DISCONNECT;
11481         }
11482
11483         pci_restore_state(pdev);
11484
11485         /*
11486          * As the new kernel behavior of pci_restore_state() API call clears
11487          * device saved_state flag, need to save the restored state again.
11488          */
11489         pci_save_state(pdev);
11490
11491         if (pdev->is_busmaster)
11492                 pci_set_master(pdev);
11493
11494         spin_lock_irq(&phba->hbalock);
11495         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11496         spin_unlock_irq(&phba->hbalock);
11497
11498         /* Configure and enable interrupt */
11499         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11500         if (intr_mode == LPFC_INTR_ERROR) {
11501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11502                                 "0427 Cannot re-enable interrupt after "
11503                                 "slot reset.\n");
11504                 return PCI_ERS_RESULT_DISCONNECT;
11505         } else
11506                 phba->intr_mode = intr_mode;
11507
11508         /* Take device offline, it will perform cleanup */
11509         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11510         lpfc_offline(phba);
11511         lpfc_sli_brdrestart(phba);
11512
11513         /* Log the current active interrupt mode */
11514         lpfc_log_intr_mode(phba, phba->intr_mode);
11515
11516         return PCI_ERS_RESULT_RECOVERED;
11517 }
11518
11519 /**
11520  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11521  * @pdev: pointer to PCI device
11522  *
11523  * This routine is called from the PCI subsystem for error handling to device
11524  * with SLI-3 interface spec. It is called when kernel error recovery tells
11525  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11526  * error recovery. After this call, traffic can start to flow from this device
11527  * again.
11528  */
11529 static void
11530 lpfc_io_resume_s3(struct pci_dev *pdev)
11531 {
11532         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11533         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11534
11535         /* Bring device online, it will be no-op for non-fatal error resume */
11536         lpfc_online(phba);
11537 }
11538
11539 /**
11540  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11541  * @phba: pointer to lpfc hba data structure.
11542  *
11543  * returns the number of ELS/CT IOCBs to reserve
11544  **/
11545 int
11546 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11547 {
11548         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11549
11550         if (phba->sli_rev == LPFC_SLI_REV4) {
11551                 if (max_xri <= 100)
11552                         return 10;
11553                 else if (max_xri <= 256)
11554                         return 25;
11555                 else if (max_xri <= 512)
11556                         return 50;
11557                 else if (max_xri <= 1024)
11558                         return 100;
11559                 else if (max_xri <= 1536)
11560                         return 150;
11561                 else if (max_xri <= 2048)
11562                         return 200;
11563                 else
11564                         return 250;
11565         } else
11566                 return 0;
11567 }
11568
11569 /**
11570  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11571  * @phba: pointer to lpfc hba data structure.
11572  *
11573  * returns the number of ELS/CT + NVMET IOCBs to reserve
11574  **/
11575 int
11576 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11577 {
11578         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11579
11580         if (phba->nvmet_support)
11581                 max_xri += LPFC_NVMET_BUF_POST;
11582         return max_xri;
11583 }
11584
11585
11586 static void
11587 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
11588         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
11589         const struct firmware *fw)
11590 {
11591         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
11592             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
11593              magic_number != MAGIC_NUMER_G6) ||
11594             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
11595              magic_number != MAGIC_NUMER_G7))
11596                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11597                         "3030 This firmware version is not supported on "
11598                         "this HBA model. Device:%x Magic:%x Type:%x "
11599                         "ID:%x Size %d %zd\n",
11600                         phba->pcidev->device, magic_number, ftype, fid,
11601                         fsize, fw->size);
11602         else
11603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11604                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
11605                         "ID:%x Size %d %zd\n",
11606                         phba->pcidev->device, magic_number, ftype, fid,
11607                         fsize, fw->size);
11608 }
11609
11610
11611 /**
11612  * lpfc_write_firmware - attempt to write a firmware image to the port
11613  * @fw: pointer to firmware image returned from request_firmware.
11614  * @phba: pointer to lpfc hba data structure.
11615  *
11616  **/
11617 static void
11618 lpfc_write_firmware(const struct firmware *fw, void *context)
11619 {
11620         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11621         char fwrev[FW_REV_STR_SIZE];
11622         struct lpfc_grp_hdr *image;
11623         struct list_head dma_buffer_list;
11624         int i, rc = 0;
11625         struct lpfc_dmabuf *dmabuf, *next;
11626         uint32_t offset = 0, temp_offset = 0;
11627         uint32_t magic_number, ftype, fid, fsize;
11628
11629         /* It can be null in no-wait mode, sanity check */
11630         if (!fw) {
11631                 rc = -ENXIO;
11632                 goto out;
11633         }
11634         image = (struct lpfc_grp_hdr *)fw->data;
11635
11636         magic_number = be32_to_cpu(image->magic_number);
11637         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11638         fid = bf_get_be32(lpfc_grp_hdr_id, image);
11639         fsize = be32_to_cpu(image->size);
11640
11641         INIT_LIST_HEAD(&dma_buffer_list);
11642         lpfc_decode_firmware_rev(phba, fwrev, 1);
11643         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11644                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11645                                 "3023 Updating Firmware, Current Version:%s "
11646                                 "New Version:%s\n",
11647                                 fwrev, image->revision);
11648                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11649                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11650                                          GFP_KERNEL);
11651                         if (!dmabuf) {
11652                                 rc = -ENOMEM;
11653                                 goto release_out;
11654                         }
11655                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11656                                                           SLI4_PAGE_SIZE,
11657                                                           &dmabuf->phys,
11658                                                           GFP_KERNEL);
11659                         if (!dmabuf->virt) {
11660                                 kfree(dmabuf);
11661                                 rc = -ENOMEM;
11662                                 goto release_out;
11663                         }
11664                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11665                 }
11666                 while (offset < fw->size) {
11667                         temp_offset = offset;
11668                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11669                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11670                                         memcpy(dmabuf->virt,
11671                                                fw->data + temp_offset,
11672                                                fw->size - temp_offset);
11673                                         temp_offset = fw->size;
11674                                         break;
11675                                 }
11676                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11677                                        SLI4_PAGE_SIZE);
11678                                 temp_offset += SLI4_PAGE_SIZE;
11679                         }
11680                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11681                                     (fw->size - offset), &offset);
11682                         if (rc) {
11683                                 lpfc_log_write_firmware_error(phba, offset,
11684                                         magic_number, ftype, fid, fsize, fw);
11685                                 goto release_out;
11686                         }
11687                 }
11688                 rc = offset;
11689         } else
11690                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11691                                 "3029 Skipped Firmware update, Current "
11692                                 "Version:%s New Version:%s\n",
11693                                 fwrev, image->revision);
11694
11695 release_out:
11696         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11697                 list_del(&dmabuf->list);
11698                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11699                                   dmabuf->virt, dmabuf->phys);
11700                 kfree(dmabuf);
11701         }
11702         release_firmware(fw);
11703 out:
11704         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11705                         "3024 Firmware update done: %d.\n", rc);
11706         return;
11707 }
11708
11709 /**
11710  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11711  * @phba: pointer to lpfc hba data structure.
11712  *
11713  * This routine is called to perform Linux generic firmware upgrade on device
11714  * that supports such feature.
11715  **/
11716 int
11717 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11718 {
11719         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11720         int ret;
11721         const struct firmware *fw;
11722
11723         /* Only supported on SLI4 interface type 2 for now */
11724         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
11725             LPFC_SLI_INTF_IF_TYPE_2)
11726                 return -EPERM;
11727
11728         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11729
11730         if (fw_upgrade == INT_FW_UPGRADE) {
11731                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11732                                         file_name, &phba->pcidev->dev,
11733                                         GFP_KERNEL, (void *)phba,
11734                                         lpfc_write_firmware);
11735         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11736                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11737                 if (!ret)
11738                         lpfc_write_firmware(fw, (void *)phba);
11739         } else {
11740                 ret = -EINVAL;
11741         }
11742
11743         return ret;
11744 }
11745
11746 /**
11747  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11748  * @pdev: pointer to PCI device
11749  * @pid: pointer to PCI device identifier
11750  *
11751  * This routine is called from the kernel's PCI subsystem to device with
11752  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11753  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11754  * information of the device and driver to see if the driver state that it
11755  * can support this kind of device. If the match is successful, the driver
11756  * core invokes this routine. If this routine determines it can claim the HBA,
11757  * it does all the initialization that it needs to do to handle the HBA
11758  * properly.
11759  *
11760  * Return code
11761  *      0 - driver can claim the device
11762  *      negative value - driver can not claim the device
11763  **/
11764 static int
11765 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11766 {
11767         struct lpfc_hba   *phba;
11768         struct lpfc_vport *vport = NULL;
11769         struct Scsi_Host  *shost = NULL;
11770         int error;
11771         uint32_t cfg_mode, intr_mode;
11772
11773         /* Allocate memory for HBA structure */
11774         phba = lpfc_hba_alloc(pdev);
11775         if (!phba)
11776                 return -ENOMEM;
11777
11778         /* Perform generic PCI device enabling operation */
11779         error = lpfc_enable_pci_dev(phba);
11780         if (error)
11781                 goto out_free_phba;
11782
11783         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11784         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11785         if (error)
11786                 goto out_disable_pci_dev;
11787
11788         /* Set up SLI-4 specific device PCI memory space */
11789         error = lpfc_sli4_pci_mem_setup(phba);
11790         if (error) {
11791                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11792                                 "1410 Failed to set up pci memory space.\n");
11793                 goto out_disable_pci_dev;
11794         }
11795
11796         /* Set up SLI-4 Specific device driver resources */
11797         error = lpfc_sli4_driver_resource_setup(phba);
11798         if (error) {
11799                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11800                                 "1412 Failed to set up driver resource.\n");
11801                 goto out_unset_pci_mem_s4;
11802         }
11803
11804         INIT_LIST_HEAD(&phba->active_rrq_list);
11805         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11806
11807         /* Set up common device driver resources */
11808         error = lpfc_setup_driver_resource_phase2(phba);
11809         if (error) {
11810                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11811                                 "1414 Failed to set up driver resource.\n");
11812                 goto out_unset_driver_resource_s4;
11813         }
11814
11815         /* Get the default values for Model Name and Description */
11816         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11817
11818         /* Create SCSI host to the physical port */
11819         error = lpfc_create_shost(phba);
11820         if (error) {
11821                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11822                                 "1415 Failed to create scsi host.\n");
11823                 goto out_unset_driver_resource;
11824         }
11825
11826         /* Configure sysfs attributes */
11827         vport = phba->pport;
11828         error = lpfc_alloc_sysfs_attr(vport);
11829         if (error) {
11830                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11831                                 "1416 Failed to allocate sysfs attr\n");
11832                 goto out_destroy_shost;
11833         }
11834
11835         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11836         /* Now, trying to enable interrupt and bring up the device */
11837         cfg_mode = phba->cfg_use_msi;
11838
11839         /* Put device to a known state before enabling interrupt */
11840         lpfc_stop_port(phba);
11841
11842         /* Configure and enable interrupt */
11843         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11844         if (intr_mode == LPFC_INTR_ERROR) {
11845                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11846                                 "0426 Failed to enable interrupt.\n");
11847                 error = -ENODEV;
11848                 goto out_free_sysfs_attr;
11849         }
11850         /* Default to single EQ for non-MSI-X */
11851         if (phba->intr_type != MSIX) {
11852                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11853                         phba->cfg_fcp_io_channel = 1;
11854                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11855                         phba->cfg_nvme_io_channel = 1;
11856                         if (phba->nvmet_support)
11857                                 phba->cfg_nvmet_mrq = 1;
11858                 }
11859                 phba->io_channel_irqs = 1;
11860         }
11861
11862         /* Set up SLI-4 HBA */
11863         if (lpfc_sli4_hba_setup(phba)) {
11864                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11865                                 "1421 Failed to set up hba\n");
11866                 error = -ENODEV;
11867                 goto out_disable_intr;
11868         }
11869
11870         /* Log the current active interrupt mode */
11871         phba->intr_mode = intr_mode;
11872         lpfc_log_intr_mode(phba, intr_mode);
11873
11874         /* Perform post initialization setup */
11875         lpfc_post_init_setup(phba);
11876
11877         /* NVME support in FW earlier in the driver load corrects the
11878          * FC4 type making a check for nvme_support unnecessary.
11879          */
11880         if ((phba->nvmet_support == 0) &&
11881             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11882                 /* Create NVME binding with nvme_fc_transport. This
11883                  * ensures the vport is initialized.  If the localport
11884                  * create fails, it should not unload the driver to
11885                  * support field issues.
11886                  */
11887                 error = lpfc_nvme_create_localport(vport);
11888                 if (error) {
11889                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11890                                         "6004 NVME registration failed, "
11891                                         "error x%x\n",
11892                                         error);
11893                 }
11894         }
11895
11896         /* check for firmware upgrade or downgrade */
11897         if (phba->cfg_request_firmware_upgrade)
11898                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11899
11900         /* Check if there are static vports to be created. */
11901         lpfc_create_static_vport(phba);
11902
11903         /* Enable RAS FW log support */
11904         lpfc_sli4_ras_setup(phba);
11905
11906         return 0;
11907
11908 out_disable_intr:
11909         lpfc_sli4_disable_intr(phba);
11910 out_free_sysfs_attr:
11911         lpfc_free_sysfs_attr(vport);
11912 out_destroy_shost:
11913         lpfc_destroy_shost(phba);
11914 out_unset_driver_resource:
11915         lpfc_unset_driver_resource_phase2(phba);
11916 out_unset_driver_resource_s4:
11917         lpfc_sli4_driver_resource_unset(phba);
11918 out_unset_pci_mem_s4:
11919         lpfc_sli4_pci_mem_unset(phba);
11920 out_disable_pci_dev:
11921         lpfc_disable_pci_dev(phba);
11922         if (shost)
11923                 scsi_host_put(shost);
11924 out_free_phba:
11925         lpfc_hba_free(phba);
11926         return error;
11927 }
11928
11929 /**
11930  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11931  * @pdev: pointer to PCI device
11932  *
11933  * This routine is called from the kernel's PCI subsystem to device with
11934  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11935  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11936  * device to be removed from the PCI subsystem properly.
11937  **/
11938 static void
11939 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11940 {
11941         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11942         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11943         struct lpfc_vport **vports;
11944         struct lpfc_hba *phba = vport->phba;
11945         int i;
11946
11947         /* Mark the device unloading flag */
11948         spin_lock_irq(&phba->hbalock);
11949         vport->load_flag |= FC_UNLOADING;
11950         spin_unlock_irq(&phba->hbalock);
11951
11952         /* Free the HBA sysfs attributes */
11953         lpfc_free_sysfs_attr(vport);
11954
11955         /* Release all the vports against this physical port */
11956         vports = lpfc_create_vport_work_array(phba);
11957         if (vports != NULL)
11958                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11959                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11960                                 continue;
11961                         fc_vport_terminate(vports[i]->fc_vport);
11962                 }
11963         lpfc_destroy_vport_work_array(phba, vports);
11964
11965         /* Remove FC host and then SCSI host with the physical port */
11966         fc_remove_host(shost);
11967         scsi_remove_host(shost);
11968
11969         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11970          * localports are destroyed after to cleanup all transport memory.
11971          */
11972         lpfc_cleanup(vport);
11973         lpfc_nvmet_destroy_targetport(phba);
11974         lpfc_nvme_destroy_localport(vport);
11975
11976         /*
11977          * Bring down the SLI Layer. This step disables all interrupts,
11978          * clears the rings, discards all mailbox commands, and resets
11979          * the HBA FCoE function.
11980          */
11981         lpfc_debugfs_terminate(vport);
11982         lpfc_sli4_hba_unset(phba);
11983
11984         lpfc_stop_hba_timers(phba);
11985         spin_lock_irq(&phba->port_list_lock);
11986         list_del_init(&vport->listentry);
11987         spin_unlock_irq(&phba->port_list_lock);
11988
11989         /* Perform scsi free before driver resource_unset since scsi
11990          * buffers are released to their corresponding pools here.
11991          */
11992         lpfc_scsi_free(phba);
11993         lpfc_nvme_free(phba);
11994         lpfc_free_iocb_list(phba);
11995
11996         lpfc_unset_driver_resource_phase2(phba);
11997         lpfc_sli4_driver_resource_unset(phba);
11998
11999         /* Unmap adapter Control and Doorbell registers */
12000         lpfc_sli4_pci_mem_unset(phba);
12001
12002         /* Release PCI resources and disable device's PCI function */
12003         scsi_host_put(shost);
12004         lpfc_disable_pci_dev(phba);
12005
12006         /* Finally, free the driver's device data structure */
12007         lpfc_hba_free(phba);
12008
12009         return;
12010 }
12011
12012 /**
12013  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12014  * @pdev: pointer to PCI device
12015  * @msg: power management message
12016  *
12017  * This routine is called from the kernel's PCI subsystem to support system
12018  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12019  * this method, it quiesces the device by stopping the driver's worker
12020  * thread for the device, turning off device's interrupt and DMA, and bring
12021  * the device offline. Note that as the driver implements the minimum PM
12022  * requirements to a power-aware driver's PM support for suspend/resume -- all
12023  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12024  * method call will be treated as SUSPEND and the driver will fully
12025  * reinitialize its device during resume() method call, the driver will set
12026  * device to PCI_D3hot state in PCI config space instead of setting it
12027  * according to the @msg provided by the PM.
12028  *
12029  * Return code
12030  *      0 - driver suspended the device
12031  *      Error otherwise
12032  **/
12033 static int
12034 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12035 {
12036         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12037         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12038
12039         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12040                         "2843 PCI device Power Management suspend.\n");
12041
12042         /* Bring down the device */
12043         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12044         lpfc_offline(phba);
12045         kthread_stop(phba->worker_thread);
12046
12047         /* Disable interrupt from device */
12048         lpfc_sli4_disable_intr(phba);
12049         lpfc_sli4_queue_destroy(phba);
12050
12051         /* Save device state to PCI config space */
12052         pci_save_state(pdev);
12053         pci_set_power_state(pdev, PCI_D3hot);
12054
12055         return 0;
12056 }
12057
12058 /**
12059  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12060  * @pdev: pointer to PCI device
12061  *
12062  * This routine is called from the kernel's PCI subsystem to support system
12063  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12064  * this method, it restores the device's PCI config space state and fully
12065  * reinitializes the device and brings it online. Note that as the driver
12066  * implements the minimum PM requirements to a power-aware driver's PM for
12067  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12068  * to the suspend() method call will be treated as SUSPEND and the driver
12069  * will fully reinitialize its device during resume() method call, the device
12070  * will be set to PCI_D0 directly in PCI config space before restoring the
12071  * state.
12072  *
12073  * Return code
12074  *      0 - driver suspended the device
12075  *      Error otherwise
12076  **/
12077 static int
12078 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12079 {
12080         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12081         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12082         uint32_t intr_mode;
12083         int error;
12084
12085         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12086                         "0292 PCI device Power Management resume.\n");
12087
12088         /* Restore device state from PCI config space */
12089         pci_set_power_state(pdev, PCI_D0);
12090         pci_restore_state(pdev);
12091
12092         /*
12093          * As the new kernel behavior of pci_restore_state() API call clears
12094          * device saved_state flag, need to save the restored state again.
12095          */
12096         pci_save_state(pdev);
12097
12098         if (pdev->is_busmaster)
12099                 pci_set_master(pdev);
12100
12101          /* Startup the kernel thread for this host adapter. */
12102         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12103                                         "lpfc_worker_%d", phba->brd_no);
12104         if (IS_ERR(phba->worker_thread)) {
12105                 error = PTR_ERR(phba->worker_thread);
12106                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12107                                 "0293 PM resume failed to start worker "
12108                                 "thread: error=x%x.\n", error);
12109                 return error;
12110         }
12111
12112         /* Configure and enable interrupt */
12113         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12114         if (intr_mode == LPFC_INTR_ERROR) {
12115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12116                                 "0294 PM resume Failed to enable interrupt\n");
12117                 return -EIO;
12118         } else
12119                 phba->intr_mode = intr_mode;
12120
12121         /* Restart HBA and bring it online */
12122         lpfc_sli_brdrestart(phba);
12123         lpfc_online(phba);
12124
12125         /* Log the current active interrupt mode */
12126         lpfc_log_intr_mode(phba, phba->intr_mode);
12127
12128         return 0;
12129 }
12130
12131 /**
12132  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12133  * @phba: pointer to lpfc hba data structure.
12134  *
12135  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12136  * aborts all the outstanding SCSI I/Os to the pci device.
12137  **/
12138 static void
12139 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12140 {
12141         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12142                         "2828 PCI channel I/O abort preparing for recovery\n");
12143         /*
12144          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12145          * and let the SCSI mid-layer to retry them to recover.
12146          */
12147         lpfc_sli_abort_fcp_rings(phba);
12148 }
12149
12150 /**
12151  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12152  * @phba: pointer to lpfc hba data structure.
12153  *
12154  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12155  * disables the device interrupt and pci device, and aborts the internal FCP
12156  * pending I/Os.
12157  **/
12158 static void
12159 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12160 {
12161         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12162                         "2826 PCI channel disable preparing for reset\n");
12163
12164         /* Block any management I/Os to the device */
12165         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12166
12167         /* Block all SCSI devices' I/Os on the host */
12168         lpfc_scsi_dev_block(phba);
12169
12170         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12171         lpfc_sli_flush_fcp_rings(phba);
12172
12173         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12174         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12175                 lpfc_sli_flush_nvme_rings(phba);
12176
12177         /* stop all timers */
12178         lpfc_stop_hba_timers(phba);
12179
12180         /* Disable interrupt and pci device */
12181         lpfc_sli4_disable_intr(phba);
12182         lpfc_sli4_queue_destroy(phba);
12183         pci_disable_device(phba->pcidev);
12184 }
12185
12186 /**
12187  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12188  * @phba: pointer to lpfc hba data structure.
12189  *
12190  * This routine is called to prepare the SLI4 device for PCI slot permanently
12191  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12192  * pending I/Os.
12193  **/
12194 static void
12195 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12196 {
12197         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12198                         "2827 PCI channel permanent disable for failure\n");
12199
12200         /* Block all SCSI devices' I/Os on the host */
12201         lpfc_scsi_dev_block(phba);
12202
12203         /* stop all timers */
12204         lpfc_stop_hba_timers(phba);
12205
12206         /* Clean up all driver's outstanding SCSI I/Os */
12207         lpfc_sli_flush_fcp_rings(phba);
12208
12209         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12210         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12211                 lpfc_sli_flush_nvme_rings(phba);
12212 }
12213
12214 /**
12215  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12216  * @pdev: pointer to PCI device.
12217  * @state: the current PCI connection state.
12218  *
12219  * This routine is called from the PCI subsystem for error handling to device
12220  * with SLI-4 interface spec. This function is called by the PCI subsystem
12221  * after a PCI bus error affecting this device has been detected. When this
12222  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12223  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12224  * for the PCI subsystem to perform proper recovery as desired.
12225  *
12226  * Return codes
12227  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12228  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12229  **/
12230 static pci_ers_result_t
12231 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12232 {
12233         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12234         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12235
12236         switch (state) {
12237         case pci_channel_io_normal:
12238                 /* Non-fatal error, prepare for recovery */
12239                 lpfc_sli4_prep_dev_for_recover(phba);
12240                 return PCI_ERS_RESULT_CAN_RECOVER;
12241         case pci_channel_io_frozen:
12242                 /* Fatal error, prepare for slot reset */
12243                 lpfc_sli4_prep_dev_for_reset(phba);
12244                 return PCI_ERS_RESULT_NEED_RESET;
12245         case pci_channel_io_perm_failure:
12246                 /* Permanent failure, prepare for device down */
12247                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12248                 return PCI_ERS_RESULT_DISCONNECT;
12249         default:
12250                 /* Unknown state, prepare and request slot reset */
12251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12252                                 "2825 Unknown PCI error state: x%x\n", state);
12253                 lpfc_sli4_prep_dev_for_reset(phba);
12254                 return PCI_ERS_RESULT_NEED_RESET;
12255         }
12256 }
12257
12258 /**
12259  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12260  * @pdev: pointer to PCI device.
12261  *
12262  * This routine is called from the PCI subsystem for error handling to device
12263  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12264  * restart the PCI card from scratch, as if from a cold-boot. During the
12265  * PCI subsystem error recovery, after the driver returns
12266  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12267  * recovery and then call this routine before calling the .resume method to
12268  * recover the device. This function will initialize the HBA device, enable
12269  * the interrupt, but it will just put the HBA to offline state without
12270  * passing any I/O traffic.
12271  *
12272  * Return codes
12273  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12274  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12275  */
12276 static pci_ers_result_t
12277 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12278 {
12279         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12280         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12281         struct lpfc_sli *psli = &phba->sli;
12282         uint32_t intr_mode;
12283
12284         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12285         if (pci_enable_device_mem(pdev)) {
12286                 printk(KERN_ERR "lpfc: Cannot re-enable "
12287                         "PCI device after reset.\n");
12288                 return PCI_ERS_RESULT_DISCONNECT;
12289         }
12290
12291         pci_restore_state(pdev);
12292
12293         /*
12294          * As the new kernel behavior of pci_restore_state() API call clears
12295          * device saved_state flag, need to save the restored state again.
12296          */
12297         pci_save_state(pdev);
12298
12299         if (pdev->is_busmaster)
12300                 pci_set_master(pdev);
12301
12302         spin_lock_irq(&phba->hbalock);
12303         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12304         spin_unlock_irq(&phba->hbalock);
12305
12306         /* Configure and enable interrupt */
12307         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12308         if (intr_mode == LPFC_INTR_ERROR) {
12309                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12310                                 "2824 Cannot re-enable interrupt after "
12311                                 "slot reset.\n");
12312                 return PCI_ERS_RESULT_DISCONNECT;
12313         } else
12314                 phba->intr_mode = intr_mode;
12315
12316         /* Log the current active interrupt mode */
12317         lpfc_log_intr_mode(phba, phba->intr_mode);
12318
12319         return PCI_ERS_RESULT_RECOVERED;
12320 }
12321
12322 /**
12323  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12324  * @pdev: pointer to PCI device
12325  *
12326  * This routine is called from the PCI subsystem for error handling to device
12327  * with SLI-4 interface spec. It is called when kernel error recovery tells
12328  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12329  * error recovery. After this call, traffic can start to flow from this device
12330  * again.
12331  **/
12332 static void
12333 lpfc_io_resume_s4(struct pci_dev *pdev)
12334 {
12335         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12336         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12337
12338         /*
12339          * In case of slot reset, as function reset is performed through
12340          * mailbox command which needs DMA to be enabled, this operation
12341          * has to be moved to the io resume phase. Taking device offline
12342          * will perform the necessary cleanup.
12343          */
12344         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12345                 /* Perform device reset */
12346                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12347                 lpfc_offline(phba);
12348                 lpfc_sli_brdrestart(phba);
12349                 /* Bring the device back online */
12350                 lpfc_online(phba);
12351         }
12352 }
12353
12354 /**
12355  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12356  * @pdev: pointer to PCI device
12357  * @pid: pointer to PCI device identifier
12358  *
12359  * This routine is to be registered to the kernel's PCI subsystem. When an
12360  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12361  * at PCI device-specific information of the device and driver to see if the
12362  * driver state that it can support this kind of device. If the match is
12363  * successful, the driver core invokes this routine. This routine dispatches
12364  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12365  * do all the initialization that it needs to do to handle the HBA device
12366  * properly.
12367  *
12368  * Return code
12369  *      0 - driver can claim the device
12370  *      negative value - driver can not claim the device
12371  **/
12372 static int
12373 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12374 {
12375         int rc;
12376         struct lpfc_sli_intf intf;
12377
12378         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12379                 return -ENODEV;
12380
12381         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12382             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12383                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12384         else
12385                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12386
12387         return rc;
12388 }
12389
12390 /**
12391  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12392  * @pdev: pointer to PCI device
12393  *
12394  * This routine is to be registered to the kernel's PCI subsystem. When an
12395  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12396  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12397  * remove routine, which will perform all the necessary cleanup for the
12398  * device to be removed from the PCI subsystem properly.
12399  **/
12400 static void
12401 lpfc_pci_remove_one(struct pci_dev *pdev)
12402 {
12403         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12404         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12405
12406         switch (phba->pci_dev_grp) {
12407         case LPFC_PCI_DEV_LP:
12408                 lpfc_pci_remove_one_s3(pdev);
12409                 break;
12410         case LPFC_PCI_DEV_OC:
12411                 lpfc_pci_remove_one_s4(pdev);
12412                 break;
12413         default:
12414                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12415                                 "1424 Invalid PCI device group: 0x%x\n",
12416                                 phba->pci_dev_grp);
12417                 break;
12418         }
12419         return;
12420 }
12421
12422 /**
12423  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12424  * @pdev: pointer to PCI device
12425  * @msg: power management message
12426  *
12427  * This routine is to be registered to the kernel's PCI subsystem to support
12428  * system Power Management (PM). When PM invokes this method, it dispatches
12429  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12430  * suspend the device.
12431  *
12432  * Return code
12433  *      0 - driver suspended the device
12434  *      Error otherwise
12435  **/
12436 static int
12437 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12438 {
12439         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12440         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12441         int rc = -ENODEV;
12442
12443         switch (phba->pci_dev_grp) {
12444         case LPFC_PCI_DEV_LP:
12445                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12446                 break;
12447         case LPFC_PCI_DEV_OC:
12448                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12449                 break;
12450         default:
12451                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12452                                 "1425 Invalid PCI device group: 0x%x\n",
12453                                 phba->pci_dev_grp);
12454                 break;
12455         }
12456         return rc;
12457 }
12458
12459 /**
12460  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12461  * @pdev: pointer to PCI device
12462  *
12463  * This routine is to be registered to the kernel's PCI subsystem to support
12464  * system Power Management (PM). When PM invokes this method, it dispatches
12465  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12466  * resume the device.
12467  *
12468  * Return code
12469  *      0 - driver suspended the device
12470  *      Error otherwise
12471  **/
12472 static int
12473 lpfc_pci_resume_one(struct pci_dev *pdev)
12474 {
12475         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12476         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12477         int rc = -ENODEV;
12478
12479         switch (phba->pci_dev_grp) {
12480         case LPFC_PCI_DEV_LP:
12481                 rc = lpfc_pci_resume_one_s3(pdev);
12482                 break;
12483         case LPFC_PCI_DEV_OC:
12484                 rc = lpfc_pci_resume_one_s4(pdev);
12485                 break;
12486         default:
12487                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12488                                 "1426 Invalid PCI device group: 0x%x\n",
12489                                 phba->pci_dev_grp);
12490                 break;
12491         }
12492         return rc;
12493 }
12494
12495 /**
12496  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12497  * @pdev: pointer to PCI device.
12498  * @state: the current PCI connection state.
12499  *
12500  * This routine is registered to the PCI subsystem for error handling. This
12501  * function is called by the PCI subsystem after a PCI bus error affecting
12502  * this device has been detected. When this routine is invoked, it dispatches
12503  * the action to the proper SLI-3 or SLI-4 device error detected handling
12504  * routine, which will perform the proper error detected operation.
12505  *
12506  * Return codes
12507  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12508  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12509  **/
12510 static pci_ers_result_t
12511 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12512 {
12513         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12514         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12515         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12516
12517         switch (phba->pci_dev_grp) {
12518         case LPFC_PCI_DEV_LP:
12519                 rc = lpfc_io_error_detected_s3(pdev, state);
12520                 break;
12521         case LPFC_PCI_DEV_OC:
12522                 rc = lpfc_io_error_detected_s4(pdev, state);
12523                 break;
12524         default:
12525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12526                                 "1427 Invalid PCI device group: 0x%x\n",
12527                                 phba->pci_dev_grp);
12528                 break;
12529         }
12530         return rc;
12531 }
12532
12533 /**
12534  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12535  * @pdev: pointer to PCI device.
12536  *
12537  * This routine is registered to the PCI subsystem for error handling. This
12538  * function is called after PCI bus has been reset to restart the PCI card
12539  * from scratch, as if from a cold-boot. When this routine is invoked, it
12540  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12541  * routine, which will perform the proper device reset.
12542  *
12543  * Return codes
12544  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12545  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12546  **/
12547 static pci_ers_result_t
12548 lpfc_io_slot_reset(struct pci_dev *pdev)
12549 {
12550         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12551         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12552         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12553
12554         switch (phba->pci_dev_grp) {
12555         case LPFC_PCI_DEV_LP:
12556                 rc = lpfc_io_slot_reset_s3(pdev);
12557                 break;
12558         case LPFC_PCI_DEV_OC:
12559                 rc = lpfc_io_slot_reset_s4(pdev);
12560                 break;
12561         default:
12562                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12563                                 "1428 Invalid PCI device group: 0x%x\n",
12564                                 phba->pci_dev_grp);
12565                 break;
12566         }
12567         return rc;
12568 }
12569
12570 /**
12571  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12572  * @pdev: pointer to PCI device
12573  *
12574  * This routine is registered to the PCI subsystem for error handling. It
12575  * is called when kernel error recovery tells the lpfc driver that it is
12576  * OK to resume normal PCI operation after PCI bus error recovery. When
12577  * this routine is invoked, it dispatches the action to the proper SLI-3
12578  * or SLI-4 device io_resume routine, which will resume the device operation.
12579  **/
12580 static void
12581 lpfc_io_resume(struct pci_dev *pdev)
12582 {
12583         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12584         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12585
12586         switch (phba->pci_dev_grp) {
12587         case LPFC_PCI_DEV_LP:
12588                 lpfc_io_resume_s3(pdev);
12589                 break;
12590         case LPFC_PCI_DEV_OC:
12591                 lpfc_io_resume_s4(pdev);
12592                 break;
12593         default:
12594                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12595                                 "1429 Invalid PCI device group: 0x%x\n",
12596                                 phba->pci_dev_grp);
12597                 break;
12598         }
12599         return;
12600 }
12601
12602 /**
12603  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12604  * @phba: pointer to lpfc hba data structure.
12605  *
12606  * This routine checks to see if OAS is supported for this adapter. If
12607  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12608  * the enable oas flag is cleared and the pool created for OAS device data
12609  * is destroyed.
12610  *
12611  **/
12612 void
12613 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12614 {
12615
12616         if (!phba->cfg_EnableXLane)
12617                 return;
12618
12619         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12620                 phba->cfg_fof = 1;
12621         } else {
12622                 phba->cfg_fof = 0;
12623                 if (phba->device_data_mem_pool)
12624                         mempool_destroy(phba->device_data_mem_pool);
12625                 phba->device_data_mem_pool = NULL;
12626         }
12627
12628         return;
12629 }
12630
12631 /**
12632  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
12633  * @phba: pointer to lpfc hba data structure.
12634  *
12635  * This routine checks to see if RAS is supported by the adapter. Check the
12636  * function through which RAS support enablement is to be done.
12637  **/
12638 void
12639 lpfc_sli4_ras_init(struct lpfc_hba *phba)
12640 {
12641         switch (phba->pcidev->device) {
12642         case PCI_DEVICE_ID_LANCER_G6_FC:
12643         case PCI_DEVICE_ID_LANCER_G7_FC:
12644                 phba->ras_fwlog.ras_hwsupport = true;
12645                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
12646                     phba->cfg_ras_fwlog_buffsize)
12647                         phba->ras_fwlog.ras_enabled = true;
12648                 else
12649                         phba->ras_fwlog.ras_enabled = false;
12650                 break;
12651         default:
12652                 phba->ras_fwlog.ras_hwsupport = false;
12653         }
12654 }
12655
12656 /**
12657  * lpfc_fof_queue_setup - Set up all the fof queues
12658  * @phba: pointer to lpfc hba data structure.
12659  *
12660  * This routine is invoked to set up all the fof queues for the FC HBA
12661  * operation.
12662  *
12663  * Return codes
12664  *      0 - successful
12665  *      -ENOMEM - No available memory
12666  **/
12667 int
12668 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12669 {
12670         struct lpfc_sli_ring *pring;
12671         int rc;
12672
12673         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12674         if (rc)
12675                 return -ENOMEM;
12676
12677         if (phba->cfg_fof) {
12678
12679                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12680                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12681                 if (rc)
12682                         goto out_oas_cq;
12683
12684                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12685                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12686                 if (rc)
12687                         goto out_oas_wq;
12688
12689                 /* Bind this CQ/WQ to the NVME ring */
12690                 pring = phba->sli4_hba.oas_wq->pring;
12691                 pring->sli.sli4.wqp =
12692                         (void *)phba->sli4_hba.oas_wq;
12693                 phba->sli4_hba.oas_cq->pring = pring;
12694         }
12695
12696         return 0;
12697
12698 out_oas_wq:
12699         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12700 out_oas_cq:
12701         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12702         return rc;
12703
12704 }
12705
12706 /**
12707  * lpfc_fof_queue_create - Create all the fof queues
12708  * @phba: pointer to lpfc hba data structure.
12709  *
12710  * This routine is invoked to allocate all the fof queues for the FC HBA
12711  * operation. For each SLI4 queue type, the parameters such as queue entry
12712  * count (queue depth) shall be taken from the module parameter. For now,
12713  * we just use some constant number as place holder.
12714  *
12715  * Return codes
12716  *      0 - successful
12717  *      -ENOMEM - No availble memory
12718  *      -EIO - The mailbox failed to complete successfully.
12719  **/
12720 int
12721 lpfc_fof_queue_create(struct lpfc_hba *phba)
12722 {
12723         struct lpfc_queue *qdesc;
12724         uint32_t wqesize;
12725
12726         /* Create FOF EQ */
12727         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
12728                                       phba->sli4_hba.eq_esize,
12729                                       phba->sli4_hba.eq_ecount);
12730         if (!qdesc)
12731                 goto out_error;
12732
12733         qdesc->qe_valid = 1;
12734         phba->sli4_hba.fof_eq = qdesc;
12735
12736         if (phba->cfg_fof) {
12737
12738                 /* Create OAS CQ */
12739                 if (phba->enab_exp_wqcq_pages)
12740                         qdesc = lpfc_sli4_queue_alloc(phba,
12741                                                       LPFC_EXPANDED_PAGE_SIZE,
12742                                                       phba->sli4_hba.cq_esize,
12743                                                       LPFC_CQE_EXP_COUNT);
12744                 else
12745                         qdesc = lpfc_sli4_queue_alloc(phba,
12746                                                       LPFC_DEFAULT_PAGE_SIZE,
12747                                                       phba->sli4_hba.cq_esize,
12748                                                       phba->sli4_hba.cq_ecount);
12749                 if (!qdesc)
12750                         goto out_error;
12751
12752                 qdesc->qe_valid = 1;
12753                 phba->sli4_hba.oas_cq = qdesc;
12754
12755                 /* Create OAS WQ */
12756                 if (phba->enab_exp_wqcq_pages) {
12757                         wqesize = (phba->fcp_embed_io) ?
12758                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12759                         qdesc = lpfc_sli4_queue_alloc(phba,
12760                                                       LPFC_EXPANDED_PAGE_SIZE,
12761                                                       wqesize,
12762                                                       LPFC_WQE_EXP_COUNT);
12763                 } else
12764                         qdesc = lpfc_sli4_queue_alloc(phba,
12765                                                       LPFC_DEFAULT_PAGE_SIZE,
12766                                                       phba->sli4_hba.wq_esize,
12767                                                       phba->sli4_hba.wq_ecount);
12768
12769                 if (!qdesc)
12770                         goto out_error;
12771
12772                 phba->sli4_hba.oas_wq = qdesc;
12773                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12774
12775         }
12776         return 0;
12777
12778 out_error:
12779         lpfc_fof_queue_destroy(phba);
12780         return -ENOMEM;
12781 }
12782
12783 /**
12784  * lpfc_fof_queue_destroy - Destroy all the fof queues
12785  * @phba: pointer to lpfc hba data structure.
12786  *
12787  * This routine is invoked to release all the SLI4 queues with the FC HBA
12788  * operation.
12789  *
12790  * Return codes
12791  *      0 - successful
12792  **/
12793 int
12794 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12795 {
12796         /* Release FOF Event queue */
12797         if (phba->sli4_hba.fof_eq != NULL) {
12798                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12799                 phba->sli4_hba.fof_eq = NULL;
12800         }
12801
12802         /* Release OAS Completion queue */
12803         if (phba->sli4_hba.oas_cq != NULL) {
12804                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12805                 phba->sli4_hba.oas_cq = NULL;
12806         }
12807
12808         /* Release OAS Work queue */
12809         if (phba->sli4_hba.oas_wq != NULL) {
12810                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12811                 phba->sli4_hba.oas_wq = NULL;
12812         }
12813         return 0;
12814 }
12815
12816 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12817
12818 static const struct pci_error_handlers lpfc_err_handler = {
12819         .error_detected = lpfc_io_error_detected,
12820         .slot_reset = lpfc_io_slot_reset,
12821         .resume = lpfc_io_resume,
12822 };
12823
12824 static struct pci_driver lpfc_driver = {
12825         .name           = LPFC_DRIVER_NAME,
12826         .id_table       = lpfc_id_table,
12827         .probe          = lpfc_pci_probe_one,
12828         .remove         = lpfc_pci_remove_one,
12829         .shutdown       = lpfc_pci_remove_one,
12830         .suspend        = lpfc_pci_suspend_one,
12831         .resume         = lpfc_pci_resume_one,
12832         .err_handler    = &lpfc_err_handler,
12833 };
12834
12835 static const struct file_operations lpfc_mgmt_fop = {
12836         .owner = THIS_MODULE,
12837 };
12838
12839 static struct miscdevice lpfc_mgmt_dev = {
12840         .minor = MISC_DYNAMIC_MINOR,
12841         .name = "lpfcmgmt",
12842         .fops = &lpfc_mgmt_fop,
12843 };
12844
12845 /**
12846  * lpfc_init - lpfc module initialization routine
12847  *
12848  * This routine is to be invoked when the lpfc module is loaded into the
12849  * kernel. The special kernel macro module_init() is used to indicate the
12850  * role of this routine to the kernel as lpfc module entry point.
12851  *
12852  * Return codes
12853  *   0 - successful
12854  *   -ENOMEM - FC attach transport failed
12855  *   all others - failed
12856  */
12857 static int __init
12858 lpfc_init(void)
12859 {
12860         int error = 0;
12861
12862         printk(LPFC_MODULE_DESC "\n");
12863         printk(LPFC_COPYRIGHT "\n");
12864
12865         error = misc_register(&lpfc_mgmt_dev);
12866         if (error)
12867                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12868                         "misc_register returned with status %d", error);
12869
12870         lpfc_transport_functions.vport_create = lpfc_vport_create;
12871         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12872         lpfc_transport_template =
12873                                 fc_attach_transport(&lpfc_transport_functions);
12874         if (lpfc_transport_template == NULL)
12875                 return -ENOMEM;
12876         lpfc_vport_transport_template =
12877                 fc_attach_transport(&lpfc_vport_transport_functions);
12878         if (lpfc_vport_transport_template == NULL) {
12879                 fc_release_transport(lpfc_transport_template);
12880                 return -ENOMEM;
12881         }
12882         lpfc_nvme_cmd_template();
12883         lpfc_nvmet_cmd_template();
12884
12885         /* Initialize in case vector mapping is needed */
12886         lpfc_used_cpu = NULL;
12887         lpfc_present_cpu = num_present_cpus();
12888
12889         error = pci_register_driver(&lpfc_driver);
12890         if (error) {
12891                 fc_release_transport(lpfc_transport_template);
12892                 fc_release_transport(lpfc_vport_transport_template);
12893         }
12894
12895         return error;
12896 }
12897
12898 /**
12899  * lpfc_exit - lpfc module removal routine
12900  *
12901  * This routine is invoked when the lpfc module is removed from the kernel.
12902  * The special kernel macro module_exit() is used to indicate the role of
12903  * this routine to the kernel as lpfc module exit point.
12904  */
12905 static void __exit
12906 lpfc_exit(void)
12907 {
12908         misc_deregister(&lpfc_mgmt_dev);
12909         pci_unregister_driver(&lpfc_driver);
12910         fc_release_transport(lpfc_transport_template);
12911         fc_release_transport(lpfc_vport_transport_template);
12912         if (_dump_buf_data) {
12913                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12914                                 "_dump_buf_data at 0x%p\n",
12915                                 (1L << _dump_buf_data_order), _dump_buf_data);
12916                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12917         }
12918
12919         if (_dump_buf_dif) {
12920                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12921                                 "_dump_buf_dif at 0x%p\n",
12922                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12923                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12924         }
12925         kfree(lpfc_used_cpu);
12926         idr_destroy(&lpfc_hba_index);
12927 }
12928
12929 module_init(lpfc_init);
12930 module_exit(lpfc_exit);
12931 MODULE_LICENSE("GPL");
12932 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12933 MODULE_AUTHOR("Broadcom");
12934 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);