drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42
  43 #include <scsi/scsi.h>
  44 #include <scsi/scsi_device.h>
  45 #include <scsi/scsi_host.h>
  46 #include <scsi/scsi_transport_fc.h>
  47 #include <scsi/scsi_tcq.h>
  48 #include <scsi/fc/fc_fs.h>
  49
  50 #include <linux/nvme-fc-driver.h>
  51
  52 #include "lpfc_hw4.h"
  53 #include "lpfc_hw.h"
  54 #include "lpfc_sli.h"
  55 #include "lpfc_sli4.h"
  56 #include "lpfc_nl.h"
  57 #include "lpfc_disc.h"
  58 #include "lpfc.h"
  59 #include "lpfc_scsi.h"
  60 #include "lpfc_nvme.h"
  61 #include "lpfc_nvmet.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 char *_dump_buf_data;
  69 unsigned long _dump_buf_data_order;
  70 char *_dump_buf_dif;
  71 unsigned long _dump_buf_dif_order;
  72 spinlock_t _dump_buf_lock;
  73
  74 /* Used when mapping IRQ vectors in a driver centric manner */
  75 static 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 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  97 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  98
  99 static struct scsi_transport_template *lpfc_transport_template = NULL;
 100 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 101 static DEFINE_IDR(lpfc_hba_index);
 102 #define LPFC_NVMET_BUF_POST 254
 103
 104 /**
 105  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 106  * @phba: pointer to lpfc hba data structure.
 107  *
 108  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 109  * mailbox command. It retrieves the revision information from the HBA and
 110  * collects the Vital Product Data (VPD) about the HBA for preparing the
 111  * configuration of the HBA.
 112  *
 113  * Return codes:
 114  *   0 - success.
 115  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 116  *   Any other value - indicates an error.
 117  **/
 118 int
 119 lpfc_config_port_prep(struct lpfc_hba *phba)
 120 {
 121         lpfc_vpd_t *vp = &phba->vpd;
 122         int i = 0, rc;
 123         LPFC_MBOXQ_t *pmb;
 124         MAILBOX_t *mb;
 125         char *lpfc_vpd_data = NULL;
 126         uint16_t offset = 0;
 127         static char licensed[56] =
 128                     "key unlock for use with gnu public licensed code only\0";
 129         static int init_key = 1;
 130
 131         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 132         if (!pmb) {
 133                 phba->link_state = LPFC_HBA_ERROR;
 134                 return -ENOMEM;
 135         }
 136
 137         mb = &pmb->u.mb;
 138         phba->link_state = LPFC_INIT_MBX_CMDS;
 139
 140         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 141                 if (init_key) {
 142                         uint32_t *ptext = (uint32_t *) licensed;
 143
 144                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 145                                 *ptext = cpu_to_be32(*ptext);
 146                         init_key = 0;
 147                 }
 148
 149                 lpfc_read_nv(phba, pmb);
 150                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 151                         sizeof (mb->un.varRDnvp.rsvd3));
 152                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 153                          sizeof (licensed));
 154
 155                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156
 157                 if (rc != MBX_SUCCESS) {
 158                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 159                                         "0324 Config Port initialization "
 160                                         "error, mbxCmd x%x READ_NVPARM, "
 161                                         "mbxStatus x%x\n",
 162                                         mb->mbxCommand, mb->mbxStatus);
 163                         mempool_free(pmb, phba->mbox_mem_pool);
 164                         return -ERESTART;
 165                 }
 166                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 167                        sizeof(phba->wwnn));
 168                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 169                        sizeof(phba->wwpn));
 170         }
 171
 172         /*
 173          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 174          * which was already set in lpfc_get_cfgparam()
 175          */
 176         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 177
 178         /* Setup and issue mailbox READ REV command */
 179         lpfc_read_rev(phba, pmb);
 180         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 181         if (rc != MBX_SUCCESS) {
 182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 183                                 "0439 Adapter failed to init, mbxCmd x%x "
 184                                 "READ_REV, mbxStatus x%x\n",
 185                                 mb->mbxCommand, mb->mbxStatus);
 186                 mempool_free( pmb, phba->mbox_mem_pool);
 187                 return -ERESTART;
 188         }
 189
 190
 191         /*
 192          * The value of rr must be 1 since the driver set the cv field to 1.
 193          * This setting requires the FW to set all revision fields.
 194          */
 195         if (mb->un.varRdRev.rr == 0) {
 196                 vp->rev.rBit = 0;
 197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 198                                 "0440 Adapter failed to init, READ_REV has "
 199                                 "missing revision information.\n");
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -ERESTART;
 202         }
 203
 204         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 205                 mempool_free(pmb, phba->mbox_mem_pool);
 206                 return -EINVAL;
 207         }
 208
 209         /* Save information as VPD data */
 210         vp->rev.rBit = 1;
 211         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 212         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 213         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 214         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 215         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 216         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 217         vp->rev.smRev = mb->un.varRdRev.smRev;
 218         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 219         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 220         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 221         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 222         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 223         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 224         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 225         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 226
 227         /* If the sli feature level is less then 9, we must
 228          * tear down all RPIs and VPIs on link down if NPIV
 229          * is enabled.
 230          */
 231         if (vp->rev.feaLevelHigh < 9)
 232                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 233
 234         if (lpfc_is_LC_HBA(phba->pcidev->device))
 235                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 236                                                 sizeof (phba->RandomData));
 237
 238         /* Get adapter VPD information */
 239         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 240         if (!lpfc_vpd_data)
 241                 goto out_free_mbox;
 242         do {
 243                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 244                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 245
 246                 if (rc != MBX_SUCCESS) {
 247                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 248                                         "0441 VPD not present on adapter, "
 249                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 250                                         mb->mbxCommand, mb->mbxStatus);
 251                         mb->un.varDmp.word_cnt = 0;
 252                 }
 253                 /* dump mem may return a zero when finished or we got a
 254                  * mailbox error, either way we are done.
 255                  */
 256                 if (mb->un.varDmp.word_cnt == 0)
 257                         break;
 258                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 259                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 260                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 261                                       lpfc_vpd_data + offset,
 262                                       mb->un.varDmp.word_cnt);
 263                 offset += mb->un.varDmp.word_cnt;
 264         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 265         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 266
 267         kfree(lpfc_vpd_data);
 268 out_free_mbox:
 269         mempool_free(pmb, phba->mbox_mem_pool);
 270         return 0;
 271 }
 272
 273 /**
 274  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 275  * @phba: pointer to lpfc hba data structure.
 276  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 277  *
 278  * This is the completion handler for driver's configuring asynchronous event
 279  * mailbox command to the device. If the mailbox command returns successfully,
 280  * it will set internal async event support flag to 1; otherwise, it will
 281  * set internal async event support flag to 0.
 282  **/
 283 static void
 284 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 285 {
 286         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 287                 phba->temp_sensor_support = 1;
 288         else
 289                 phba->temp_sensor_support = 0;
 290         mempool_free(pmboxq, phba->mbox_mem_pool);
 291         return;
 292 }
 293
 294 /**
 295  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 296  * @phba: pointer to lpfc hba data structure.
 297  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 298  *
 299  * This is the completion handler for dump mailbox command for getting
 300  * wake up parameters. When this command complete, the response contain
 301  * Option rom version of the HBA. This function translate the version number
 302  * into a human readable string and store it in OptionROMVersion.
 303  **/
 304 static void
 305 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 306 {
 307         struct prog_id *prg;
 308         uint32_t prog_id_word;
 309         char dist = ' ';
 310         /* character array used for decoding dist type. */
 311         char dist_char[] = "nabx";
 312
 313         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 314                 mempool_free(pmboxq, phba->mbox_mem_pool);
 315                 return;
 316         }
 317
 318         prg = (struct prog_id *) &prog_id_word;
 319
 320         /* word 7 contain option rom version */
 321         prog_id_word = pmboxq->u.mb.un.varWords[7];
 322
 323         /* Decode the Option rom version word to a readable string */
 324         if (prg->dist < 4)
 325                 dist = dist_char[prg->dist];
 326
 327         if ((prg->dist == 3) && (prg->num == 0))
 328                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 329                         prg->ver, prg->rev, prg->lev);
 330         else
 331                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 332                         prg->ver, prg->rev, prg->lev,
 333                         dist, prg->num);
 334         mempool_free(pmboxq, phba->mbox_mem_pool);
 335         return;
 336 }
 337
 338 /**
 339  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 340  *      cfg_soft_wwnn, cfg_soft_wwpn
 341  * @vport: pointer to lpfc vport data structure.
 342  *
 343  *
 344  * Return codes
 345  *   None.
 346  **/
 347 void
 348 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 349 {
 350         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 351         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 352
 353         /* If the soft name exists then update it using the service params */
 354         if (vport->phba->cfg_soft_wwnn)
 355                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 356                            vport->fc_sparam.nodeName.u.wwn);
 357         if (vport->phba->cfg_soft_wwpn)
 358                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 359                            vport->fc_sparam.portName.u.wwn);
 360
 361         /*
 362          * If the name is empty or there exists a soft name
 363          * then copy the service params name, otherwise use the fc name
 364          */
 365         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 366                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 367                         sizeof(struct lpfc_name));
 368         else
 369                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 370                         sizeof(struct lpfc_name));
 371
 372         /*
 373          * If the port name has changed, then set the Param changes flag
 374          * to unreg the login
 375          */
 376         if (vport->fc_portname.u.wwn[0] != 0 &&
 377                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 378                         sizeof(struct lpfc_name)))
 379                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 380
 381         if (vport->fc_portname.u.wwn[0] == 0 ||
 382             vport->phba->cfg_soft_wwpn ||
 383             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 384             vport->vport_flag & FAWWPN_SET) {
 385                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 386                         sizeof(struct lpfc_name));
 387                 vport->vport_flag &= ~FAWWPN_SET;
 388                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 389                         vport->vport_flag |= FAWWPN_SET;
 390         }
 391         else
 392                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 393                         sizeof(struct lpfc_name));
 394 }
 395
 396 /**
 397  * lpfc_config_port_post - Perform lpfc initialization after config port
 398  * @phba: pointer to lpfc hba data structure.
 399  *
 400  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 401  * command call. It performs all internal resource and state setups on the
 402  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 403  * ELS ring timers, etc.
 404  *
 405  * Return codes
 406  *   0 - success.
 407  *   Any other value - error.
 408  **/
 409 int
 410 lpfc_config_port_post(struct lpfc_hba *phba)
 411 {
 412         struct lpfc_vport *vport = phba->pport;
 413         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 414         LPFC_MBOXQ_t *pmb;
 415         MAILBOX_t *mb;
 416         struct lpfc_dmabuf *mp;
 417         struct lpfc_sli *psli = &phba->sli;
 418         uint32_t status, timeout;
 419         int i, j;
 420         int rc;
 421
 422         spin_lock_irq(&phba->hbalock);
 423         /*
 424          * If the Config port completed correctly the HBA is not
 425          * over heated any more.
 426          */
 427         if (phba->over_temp_state == HBA_OVER_TEMP)
 428                 phba->over_temp_state = HBA_NORMAL_TEMP;
 429         spin_unlock_irq(&phba->hbalock);
 430
 431         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 432         if (!pmb) {
 433                 phba->link_state = LPFC_HBA_ERROR;
 434                 return -ENOMEM;
 435         }
 436         mb = &pmb->u.mb;
 437
 438         /* Get login parameters for NID.  */
 439         rc = lpfc_read_sparam(phba, pmb, 0);
 440         if (rc) {
 441                 mempool_free(pmb, phba->mbox_mem_pool);
 442                 return -ENOMEM;
 443         }
 444
 445         pmb->vport = vport;
 446         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 447                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 448                                 "0448 Adapter failed init, mbxCmd x%x "
 449                                 "READ_SPARM mbxStatus x%x\n",
 450                                 mb->mbxCommand, mb->mbxStatus);
 451                 phba->link_state = LPFC_HBA_ERROR;
 452                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 453                 mempool_free(pmb, phba->mbox_mem_pool);
 454                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 455                 kfree(mp);
 456                 return -EIO;
 457         }
 458
 459         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 460
 461         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 462         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 463         kfree(mp);
 464         pmb->ctx_buf = NULL;
 465         lpfc_update_vport_wwn(vport);
 466
 467         /* Update the fc_host data structures with new wwn. */
 468         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 469         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 470         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 471
 472         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 473         /* This should be consolidated into parse_vpd ? - mr */
 474         if (phba->SerialNumber[0] == 0) {
 475                 uint8_t *outptr;
 476
 477                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 478                 for (i = 0; i < 12; i++) {
 479                         status = *outptr++;
 480                         j = ((status & 0xf0) >> 4);
 481                         if (j <= 9)
 482                                 phba->SerialNumber[i] =
 483                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 484                         else
 485                                 phba->SerialNumber[i] =
 486                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 487                         i++;
 488                         j = (status & 0xf);
 489                         if (j <= 9)
 490                                 phba->SerialNumber[i] =
 491                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 492                         else
 493                                 phba->SerialNumber[i] =
 494                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 495                 }
 496         }
 497
 498         lpfc_read_config(phba, pmb);
 499         pmb->vport = vport;
 500         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 502                                 "0453 Adapter failed to init, mbxCmd x%x "
 503                                 "READ_CONFIG, mbxStatus x%x\n",
 504                                 mb->mbxCommand, mb->mbxStatus);
 505                 phba->link_state = LPFC_HBA_ERROR;
 506                 mempool_free( pmb, phba->mbox_mem_pool);
 507                 return -EIO;
 508         }
 509
 510         /* Check if the port is disabled */
 511         lpfc_sli_read_link_ste(phba);
 512
 513         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 514         i = (mb->un.varRdConfig.max_xri + 1);
 515         if (phba->cfg_hba_queue_depth > i) {
 516                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 517                                 "3359 HBA queue depth changed from %d to %d\n",
 518                                 phba->cfg_hba_queue_depth, i);
 519                 phba->cfg_hba_queue_depth = i;
 520         }
 521
 522         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 523         i = (mb->un.varRdConfig.max_xri >> 3);
 524         if (phba->pport->cfg_lun_queue_depth > i) {
 525                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 526                                 "3360 LUN queue depth changed from %d to %d\n",
 527                                 phba->pport->cfg_lun_queue_depth, i);
 528                 phba->pport->cfg_lun_queue_depth = i;
 529         }
 530
 531         phba->lmt = mb->un.varRdConfig.lmt;
 532
 533         /* Get the default values for Model Name and Description */
 534         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 535
 536         phba->link_state = LPFC_LINK_DOWN;
 537
 538         /* Only process IOCBs on ELS ring till hba_state is READY */
 539         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 540                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 541         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 542                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 543
 544         /* Post receive buffers for desired rings */
 545         if (phba->sli_rev != 3)
 546                 lpfc_post_rcv_buf(phba);
 547
 548         /*
 549          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 550          */
 551         if (phba->intr_type == MSIX) {
 552                 rc = lpfc_config_msi(phba, pmb);
 553                 if (rc) {
 554                         mempool_free(pmb, phba->mbox_mem_pool);
 555                         return -EIO;
 556                 }
 557                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 558                 if (rc != MBX_SUCCESS) {
 559                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 560                                         "0352 Config MSI mailbox command "
 561                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 562                                         pmb->u.mb.mbxCommand,
 563                                         pmb->u.mb.mbxStatus);
 564                         mempool_free(pmb, phba->mbox_mem_pool);
 565                         return -EIO;
 566                 }
 567         }
 568
 569         spin_lock_irq(&phba->hbalock);
 570         /* Initialize ERATT handling flag */
 571         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 572
 573         /* Enable appropriate host interrupts */
 574         if (lpfc_readl(phba->HCregaddr, &status)) {
 575                 spin_unlock_irq(&phba->hbalock);
 576                 return -EIO;
 577         }
 578         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 579         if (psli->num_rings > 0)
 580                 status |= HC_R0INT_ENA;
 581         if (psli->num_rings > 1)
 582                 status |= HC_R1INT_ENA;
 583         if (psli->num_rings > 2)
 584                 status |= HC_R2INT_ENA;
 585         if (psli->num_rings > 3)
 586                 status |= HC_R3INT_ENA;
 587
 588         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 589             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 590                 status &= ~(HC_R0INT_ENA);
 591
 592         writel(status, phba->HCregaddr);
 593         readl(phba->HCregaddr); /* flush */
 594         spin_unlock_irq(&phba->hbalock);
 595
 596         /* Set up ring-0 (ELS) timer */
 597         timeout = phba->fc_ratov * 2;
 598         mod_timer(&vport->els_tmofunc,
 599                   jiffies + msecs_to_jiffies(1000 * timeout));
 600         /* Set up heart beat (HB) timer */
 601         mod_timer(&phba->hb_tmofunc,
 602                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 603         phba->hb_outstanding = 0;
 604         phba->last_completion_time = jiffies;
 605         /* Set up error attention (ERATT) polling timer */
 606         mod_timer(&phba->eratt_poll,
 607                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 608
 609         if (phba->hba_flag & LINK_DISABLED) {
 610                 lpfc_printf_log(phba,
 611                         KERN_ERR, LOG_INIT,
 612                         "2598 Adapter Link is disabled.\n");
 613                 lpfc_down_link(phba, pmb);
 614                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 615                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 616                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 617                         lpfc_printf_log(phba,
 618                         KERN_ERR, LOG_INIT,
 619                         "2599 Adapter failed to issue DOWN_LINK"
 620                         " mbox command rc 0x%x\n", rc);
 621
 622                         mempool_free(pmb, phba->mbox_mem_pool);
 623                         return -EIO;
 624                 }
 625         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 626                 mempool_free(pmb, phba->mbox_mem_pool);
 627                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 628                 if (rc)
 629                         return rc;
 630         }
 631         /* MBOX buffer will be freed in mbox compl */
 632         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 633         if (!pmb) {
 634                 phba->link_state = LPFC_HBA_ERROR;
 635                 return -ENOMEM;
 636         }
 637
 638         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 639         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 640         pmb->vport = phba->pport;
 641         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 642
 643         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 644                 lpfc_printf_log(phba,
 645                                 KERN_ERR,
 646                                 LOG_INIT,
 647                                 "0456 Adapter failed to issue "
 648                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 649                                 rc);
 650                 mempool_free(pmb, phba->mbox_mem_pool);
 651         }
 652
 653         /* Get Option rom version */
 654         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 655         if (!pmb) {
 656                 phba->link_state = LPFC_HBA_ERROR;
 657                 return -ENOMEM;
 658         }
 659
 660         lpfc_dump_wakeup_param(phba, pmb);
 661         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 662         pmb->vport = phba->pport;
 663         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 664
 665         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 666                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 667                                 "to get Option ROM version status x%x\n", rc);
 668                 mempool_free(pmb, phba->mbox_mem_pool);
 669         }
 670
 671         return 0;
 672 }
 673
 674 /**
 675  * lpfc_hba_init_link - Initialize the FC link
 676  * @phba: pointer to lpfc hba data structure.
 677  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 678  *
 679  * This routine will issue the INIT_LINK mailbox command call.
 680  * It is available to other drivers through the lpfc_hba data
 681  * structure for use as a delayed link up mechanism with the
 682  * module parameter lpfc_suppress_link_up.
 683  *
 684  * Return code
 685  *              0 - success
 686  *              Any other value - error
 687  **/
 688 static int
 689 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 690 {
 691         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 692 }
 693
 694 /**
 695  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 696  * @phba: pointer to lpfc hba data structure.
 697  * @fc_topology: desired fc topology.
 698  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 699  *
 700  * This routine will issue the INIT_LINK mailbox command call.
 701  * It is available to other drivers through the lpfc_hba data
 702  * structure for use as a delayed link up mechanism with the
 703  * module parameter lpfc_suppress_link_up.
 704  *
 705  * Return code
 706  *              0 - success
 707  *              Any other value - error
 708  **/
 709 int
 710 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 711                                uint32_t flag)
 712 {
 713         struct lpfc_vport *vport = phba->pport;
 714         LPFC_MBOXQ_t *pmb;
 715         MAILBOX_t *mb;
 716         int rc;
 717
 718         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 719         if (!pmb) {
 720                 phba->link_state = LPFC_HBA_ERROR;
 721                 return -ENOMEM;
 722         }
 723         mb = &pmb->u.mb;
 724         pmb->vport = vport;
 725
 726         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 728              !(phba->lmt & LMT_1Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 730              !(phba->lmt & LMT_2Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 732              !(phba->lmt & LMT_4Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 734              !(phba->lmt & LMT_8Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 736              !(phba->lmt & LMT_10Gb)) ||
 737             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 738              !(phba->lmt & LMT_16Gb)) ||
 739             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 740              !(phba->lmt & LMT_32Gb)) ||
 741             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 742              !(phba->lmt & LMT_64Gb))) {
 743                 /* Reset link speed to auto */
 744                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 745                         "1302 Invalid speed for this board:%d "
 746                         "Reset link speed to auto.\n",
 747                         phba->cfg_link_speed);
 748                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 749         }
 750         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 751         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 752         if (phba->sli_rev < LPFC_SLI_REV4)
 753                 lpfc_set_loopback_flag(phba);
 754         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 755         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 757                         "0498 Adapter failed to init, mbxCmd x%x "
 758                         "INIT_LINK, mbxStatus x%x\n",
 759                         mb->mbxCommand, mb->mbxStatus);
 760                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 761                         /* Clear all interrupt enable conditions */
 762                         writel(0, phba->HCregaddr);
 763                         readl(phba->HCregaddr); /* flush */
 764                         /* Clear all pending interrupts */
 765                         writel(0xffffffff, phba->HAregaddr);
 766                         readl(phba->HAregaddr); /* flush */
 767                 }
 768                 phba->link_state = LPFC_HBA_ERROR;
 769                 if (rc != MBX_BUSY || flag == MBX_POLL)
 770                         mempool_free(pmb, phba->mbox_mem_pool);
 771                 return -EIO;
 772         }
 773         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 774         if (flag == MBX_POLL)
 775                 mempool_free(pmb, phba->mbox_mem_pool);
 776
 777         return 0;
 778 }
 779
 780 /**
 781  * lpfc_hba_down_link - this routine downs the FC link
 782  * @phba: pointer to lpfc hba data structure.
 783  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 784  *
 785  * This routine will issue the DOWN_LINK mailbox command call.
 786  * It is available to other drivers through the lpfc_hba data
 787  * structure for use to stop the link.
 788  *
 789  * Return code
 790  *              0 - success
 791  *              Any other value - error
 792  **/
 793 static int
 794 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 795 {
 796         LPFC_MBOXQ_t *pmb;
 797         int rc;
 798
 799         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 800         if (!pmb) {
 801                 phba->link_state = LPFC_HBA_ERROR;
 802                 return -ENOMEM;
 803         }
 804
 805         lpfc_printf_log(phba,
 806                 KERN_ERR, LOG_INIT,
 807                 "0491 Adapter Link is disabled.\n");
 808         lpfc_down_link(phba, pmb);
 809         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 810         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 811         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 812                 lpfc_printf_log(phba,
 813                 KERN_ERR, LOG_INIT,
 814                 "2522 Adapter failed to issue DOWN_LINK"
 815                 " mbox command rc 0x%x\n", rc);
 816
 817                 mempool_free(pmb, phba->mbox_mem_pool);
 818                 return -EIO;
 819         }
 820         if (flag == MBX_POLL)
 821                 mempool_free(pmb, phba->mbox_mem_pool);
 822
 823         return 0;
 824 }
 825
 826 /**
 827  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 828  * @phba: pointer to lpfc HBA data structure.
 829  *
 830  * This routine will do LPFC uninitialization before the HBA is reset when
 831  * bringing down the SLI Layer.
 832  *
 833  * Return codes
 834  *   0 - success.
 835  *   Any other value - error.
 836  **/
 837 int
 838 lpfc_hba_down_prep(struct lpfc_hba *phba)
 839 {
 840         struct lpfc_vport **vports;
 841         int i;
 842
 843         if (phba->sli_rev <= LPFC_SLI_REV3) {
 844                 /* Disable interrupts */
 845                 writel(0, phba->HCregaddr);
 846                 readl(phba->HCregaddr); /* flush */
 847         }
 848
 849         if (phba->pport->load_flag & FC_UNLOADING)
 850                 lpfc_cleanup_discovery_resources(phba->pport);
 851         else {
 852                 vports = lpfc_create_vport_work_array(phba);
 853                 if (vports != NULL)
 854                         for (i = 0; i <= phba->max_vports &&
 855                                 vports[i] != NULL; i++)
 856                                 lpfc_cleanup_discovery_resources(vports[i]);
 857                 lpfc_destroy_vport_work_array(phba, vports);
 858         }
 859         return 0;
 860 }
 861
 862 /**
 863  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 864  * rspiocb which got deferred
 865  *
 866  * @phba: pointer to lpfc HBA data structure.
 867  *
 868  * This routine will cleanup completed slow path events after HBA is reset
 869  * when bringing down the SLI Layer.
 870  *
 871  *
 872  * Return codes
 873  *   void.
 874  **/
 875 static void
 876 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 877 {
 878         struct lpfc_iocbq *rspiocbq;
 879         struct hbq_dmabuf *dmabuf;
 880         struct lpfc_cq_event *cq_event;
 881
 882         spin_lock_irq(&phba->hbalock);
 883         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 884         spin_unlock_irq(&phba->hbalock);
 885
 886         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 887                 /* Get the response iocb from the head of work queue */
 888                 spin_lock_irq(&phba->hbalock);
 889                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 890                                  cq_event, struct lpfc_cq_event, list);
 891                 spin_unlock_irq(&phba->hbalock);
 892
 893                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 894                 case CQE_CODE_COMPL_WQE:
 895                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 896                                                  cq_event);
 897                         lpfc_sli_release_iocbq(phba, rspiocbq);
 898                         break;
 899                 case CQE_CODE_RECEIVE:
 900                 case CQE_CODE_RECEIVE_V1:
 901                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 902                                               cq_event);
 903                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 904                 }
 905         }
 906 }
 907
 908 /**
 909  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 910  * @phba: pointer to lpfc HBA data structure.
 911  *
 912  * This routine will cleanup posted ELS buffers after the HBA is reset
 913  * when bringing down the SLI Layer.
 914  *
 915  *
 916  * Return codes
 917  *   void.
 918  **/
 919 static void
 920 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 921 {
 922         struct lpfc_sli *psli = &phba->sli;
 923         struct lpfc_sli_ring *pring;
 924         struct lpfc_dmabuf *mp, *next_mp;
 925         LIST_HEAD(buflist);
 926         int count;
 927
 928         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 929                 lpfc_sli_hbqbuf_free_all(phba);
 930         else {
 931                 /* Cleanup preposted buffers on the ELS ring */
 932                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 933                 spin_lock_irq(&phba->hbalock);
 934                 list_splice_init(&pring->postbufq, &buflist);
 935                 spin_unlock_irq(&phba->hbalock);
 936
 937                 count = 0;
 938                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 939                         list_del(&mp->list);
 940                         count++;
 941                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 942                         kfree(mp);
 943                 }
 944
 945                 spin_lock_irq(&phba->hbalock);
 946                 pring->postbufq_cnt -= count;
 947                 spin_unlock_irq(&phba->hbalock);
 948         }
 949 }
 950
 951 /**
 952  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 953  * @phba: pointer to lpfc HBA data structure.
 954  *
 955  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 956  * down the SLI Layer.
 957  *
 958  * Return codes
 959  *   void
 960  **/
 961 static void
 962 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 963 {
 964         struct lpfc_sli *psli = &phba->sli;
 965         struct lpfc_queue *qp = NULL;
 966         struct lpfc_sli_ring *pring;
 967         LIST_HEAD(completions);
 968         int i;
 969         struct lpfc_iocbq *piocb, *next_iocb;
 970
 971         if (phba->sli_rev != LPFC_SLI_REV4) {
 972                 for (i = 0; i < psli->num_rings; i++) {
 973                         pring = &psli->sli3_ring[i];
 974                         spin_lock_irq(&phba->hbalock);
 975                         /* At this point in time the HBA is either reset or DOA
 976                          * Nothing should be on txcmplq as it will
 977                          * NEVER complete.
 978                          */
 979                         list_splice_init(&pring->txcmplq, &completions);
 980                         pring->txcmplq_cnt = 0;
 981                         spin_unlock_irq(&phba->hbalock);
 982
 983                         lpfc_sli_abort_iocb_ring(phba, pring);
 984                 }
 985                 /* Cancel all the IOCBs from the completions list */
 986                 lpfc_sli_cancel_iocbs(phba, &completions,
 987                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 988                 return;
 989         }
 990         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 991                 pring = qp->pring;
 992                 if (!pring)
 993                         continue;
 994                 spin_lock_irq(&pring->ring_lock);
 995                 list_for_each_entry_safe(piocb, next_iocb,
 996                                          &pring->txcmplq, list)
 997                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 998                 list_splice_init(&pring->txcmplq, &completions);
 999                 pring->txcmplq_cnt = 0;
1000                 spin_unlock_irq(&pring->ring_lock);
1001                 lpfc_sli_abort_iocb_ring(phba, pring);
1002         }
1003         /* Cancel all the IOCBs from the completions list */
1004         lpfc_sli_cancel_iocbs(phba, &completions,
1005                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1006 }
1007
1008 /**
1009  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1010         int i;
1011  * @phba: pointer to lpfc HBA data structure.
1012  *
1013  * This routine will do uninitialization after the HBA is reset when bring
1014  * down the SLI Layer.
1015  *
1016  * Return codes
1017  *   0 - success.
1018  *   Any other value - error.
1019  **/
1020 static int
1021 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1022 {
1023         lpfc_hba_free_post_buf(phba);
1024         lpfc_hba_clean_txcmplq(phba);
1025         return 0;
1026 }
1027
1028 /**
1029  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1030  * @phba: pointer to lpfc HBA data structure.
1031  *
1032  * This routine will do uninitialization after the HBA is reset when bring
1033  * down the SLI Layer.
1034  *
1035  * Return codes
1036  *   0 - success.
1037  *   Any other value - error.
1038  **/
1039 static int
1040 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1041 {
1042         struct lpfc_io_buf *psb, *psb_next;
1043         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1044         struct lpfc_sli4_hdw_queue *qp;
1045         LIST_HEAD(aborts);
1046         LIST_HEAD(nvme_aborts);
1047         LIST_HEAD(nvmet_aborts);
1048         struct lpfc_sglq *sglq_entry = NULL;
1049         int cnt, idx;
1050
1051
1052         lpfc_sli_hbqbuf_free_all(phba);
1053         lpfc_hba_clean_txcmplq(phba);
1054
1055         /* At this point in time the HBA is either reset or DOA. Either
1056          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1057          * on the lpfc_els_sgl_list so that it can either be freed if the
1058          * driver is unloading or reposted if the driver is restarting
1059          * the port.
1060          */
1061         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1062                                         /* scsl_buf_list */
1063         /* sgl_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         spin_lock(&phba->sli4_hba.sgl_list_lock);
1067         list_for_each_entry(sglq_entry,
1068                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1069                 sglq_entry->state = SGL_FREED;
1070
1071         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1072                         &phba->sli4_hba.lpfc_els_sgl_list);
1073
1074
1075         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1076
1077         /* abts_xxxx_buf_list_lock required because worker thread uses this
1078          * list.
1079          */
1080         cnt = 0;
1081         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1082                 qp = &phba->sli4_hba.hdwq[idx];
1083
1084                 spin_lock(&qp->abts_scsi_buf_list_lock);
1085                 list_splice_init(&qp->lpfc_abts_scsi_buf_list,
1086                                  &aborts);
1087
1088                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1089                         psb->pCmd = NULL;
1090                         psb->status = IOSTAT_SUCCESS;
1091                         cnt++;
1092                 }
1093                 spin_lock(&qp->io_buf_list_put_lock);
1094                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1095                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1096                 qp->abts_scsi_io_bufs = 0;
1097                 spin_unlock(&qp->io_buf_list_put_lock);
1098                 spin_unlock(&qp->abts_scsi_buf_list_lock);
1099
1100                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1101                         spin_lock(&qp->abts_nvme_buf_list_lock);
1102                         list_splice_init(&qp->lpfc_abts_nvme_buf_list,
1103                                          &nvme_aborts);
1104                         list_for_each_entry_safe(psb, psb_next, &nvme_aborts,
1105                                                  list) {
1106                                 psb->pCmd = NULL;
1107                                 psb->status = IOSTAT_SUCCESS;
1108                                 cnt++;
1109                         }
1110                         spin_lock(&qp->io_buf_list_put_lock);
1111                         qp->put_io_bufs += qp->abts_nvme_io_bufs;
1112                         qp->abts_nvme_io_bufs = 0;
1113                         list_splice_init(&nvme_aborts,
1114                                          &qp->lpfc_io_buf_list_put);
1115                         spin_unlock(&qp->io_buf_list_put_lock);
1116                         spin_unlock(&qp->abts_nvme_buf_list_lock);
1117
1118                 }
1119         }
1120         spin_unlock_irq(&phba->hbalock);
1121
1122         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1123                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1124                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1125                                  &nvmet_aborts);
1126                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1127                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1128                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1129                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1130                 }
1131         }
1132
1133         lpfc_sli4_free_sp_events(phba);
1134         return cnt;
1135 }
1136
1137 /**
1138  * lpfc_hba_down_post - Wrapper func for hba down post routine
1139  * @phba: pointer to lpfc HBA data structure.
1140  *
1141  * This routine wraps the actual SLI3 or SLI4 routine for performing
1142  * uninitialization after the HBA is reset when bring down the SLI Layer.
1143  *
1144  * Return codes
1145  *   0 - success.
1146  *   Any other value - error.
1147  **/
1148 int
1149 lpfc_hba_down_post(struct lpfc_hba *phba)
1150 {
1151         return (*phba->lpfc_hba_down_post)(phba);
1152 }
1153
1154 /**
1155  * lpfc_hb_timeout - The HBA-timer timeout handler
1156  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1157  *
1158  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1159  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1160  * work-port-events bitmap and the worker thread is notified. This timeout
1161  * event will be used by the worker thread to invoke the actual timeout
1162  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1163  * be performed in the timeout handler and the HBA timeout event bit shall
1164  * be cleared by the worker thread after it has taken the event bitmap out.
1165  **/
1166 static void
1167 lpfc_hb_timeout(struct timer_list *t)
1168 {
1169         struct lpfc_hba *phba;
1170         uint32_t tmo_posted;
1171         unsigned long iflag;
1172
1173         phba = from_timer(phba, t, hb_tmofunc);
1174
1175         /* Check for heart beat timeout conditions */
1176         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1177         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1178         if (!tmo_posted)
1179                 phba->pport->work_port_events |= WORKER_HB_TMO;
1180         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1181
1182         /* Tell the worker thread there is work to do */
1183         if (!tmo_posted)
1184                 lpfc_worker_wake_up(phba);
1185         return;
1186 }
1187
1188 /**
1189  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1190  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1191  *
1192  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1193  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1194  * work-port-events bitmap and the worker thread is notified. This timeout
1195  * event will be used by the worker thread to invoke the actual timeout
1196  * handler routine, lpfc_rrq_handler. Any periodical operations will
1197  * be performed in the timeout handler and the RRQ timeout event bit shall
1198  * be cleared by the worker thread after it has taken the event bitmap out.
1199  **/
1200 static void
1201 lpfc_rrq_timeout(struct timer_list *t)
1202 {
1203         struct lpfc_hba *phba;
1204         unsigned long iflag;
1205
1206         phba = from_timer(phba, t, rrq_tmr);
1207         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1208         if (!(phba->pport->load_flag & FC_UNLOADING))
1209                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1210         else
1211                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1212         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1213
1214         if (!(phba->pport->load_flag & FC_UNLOADING))
1215                 lpfc_worker_wake_up(phba);
1216 }
1217
1218 /**
1219  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1220  * @phba: pointer to lpfc hba data structure.
1221  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1222  *
1223  * This is the callback function to the lpfc heart-beat mailbox command.
1224  * If configured, the lpfc driver issues the heart-beat mailbox command to
1225  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1226  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1227  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1228  * heart-beat outstanding state. Once the mailbox command comes back and
1229  * no error conditions detected, the heart-beat mailbox command timer is
1230  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1231  * state is cleared for the next heart-beat. If the timer expired with the
1232  * heart-beat outstanding state set, the driver will put the HBA offline.
1233  **/
1234 static void
1235 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1236 {
1237         unsigned long drvr_flag;
1238
1239         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1240         phba->hb_outstanding = 0;
1241         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1242
1243         /* Check and reset heart-beat timer is necessary */
1244         mempool_free(pmboxq, phba->mbox_mem_pool);
1245         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1246                 !(phba->link_state == LPFC_HBA_ERROR) &&
1247                 !(phba->pport->load_flag & FC_UNLOADING))
1248                 mod_timer(&phba->hb_tmofunc,
1249                           jiffies +
1250                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1251         return;
1252 }
1253
1254 static void
1255 lpfc_hb_eq_delay_work(struct work_struct *work)
1256 {
1257         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1258                                              struct lpfc_hba, eq_delay_work);
1259         struct lpfc_eq_intr_info *eqi, *eqi_new;
1260         struct lpfc_queue *eq, *eq_next;
1261         unsigned char *eqcnt = NULL;
1262         uint32_t usdelay;
1263         int i;
1264
1265         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1266                 return;
1267
1268         if (phba->link_state == LPFC_HBA_ERROR ||
1269             phba->pport->fc_flag & FC_OFFLINE_MODE)
1270                 goto requeue;
1271
1272         eqcnt = kcalloc(num_possible_cpus(), sizeof(unsigned char),
1273                         GFP_KERNEL);
1274         if (!eqcnt)
1275                 goto requeue;
1276
1277         /* Loop thru all IRQ vectors */
1278         for (i = 0; i < phba->cfg_irq_chann; i++) {
1279                 /* Get the EQ corresponding to the IRQ vector */
1280                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1281                 if (eq && eqcnt[eq->last_cpu] < 2)
1282                         eqcnt[eq->last_cpu]++;
1283                 continue;
1284         }
1285
1286         for_each_present_cpu(i) {
1287                 if (phba->cfg_irq_chann > 1 && eqcnt[i] < 2)
1288                         continue;
1289
1290                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1291
1292                 usdelay = (eqi->icnt / LPFC_IMAX_THRESHOLD) *
1293                            LPFC_EQ_DELAY_STEP;
1294                 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1295                         usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1296
1297                 eqi->icnt = 0;
1298
1299                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1300                         if (eq->last_cpu != i) {
1301                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1302                                                       eq->last_cpu);
1303                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1304                                 continue;
1305                         }
1306                         if (usdelay != eq->q_mode)
1307                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1308                                                          usdelay);
1309                 }
1310         }
1311
1312         kfree(eqcnt);
1313
1314 requeue:
1315         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1316                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1317 }
1318
1319 /**
1320  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1321  * @phba: pointer to lpfc hba data structure.
1322  *
1323  * For each heartbeat, this routine does some heuristic methods to adjust
1324  * XRI distribution. The goal is to fully utilize free XRIs.
1325  **/
1326 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1327 {
1328         u32 i;
1329         u32 hwq_count;
1330
1331         hwq_count = phba->cfg_hdw_queue;
1332         for (i = 0; i < hwq_count; i++) {
1333                 /* Adjust XRIs in private pool */
1334                 lpfc_adjust_pvt_pool_count(phba, i);
1335
1336                 /* Adjust high watermark */
1337                 lpfc_adjust_high_watermark(phba, i);
1338
1339 #ifdef LPFC_MXP_STAT
1340                 /* Snapshot pbl, pvt and busy count */
1341                 lpfc_snapshot_mxp(phba, i);
1342 #endif
1343         }
1344 }
1345
1346 /**
1347  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1348  * @phba: pointer to lpfc hba data structure.
1349  *
1350  * This is the actual HBA-timer timeout handler to be invoked by the worker
1351  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1352  * handler performs any periodic operations needed for the device. If such
1353  * periodic event has already been attended to either in the interrupt handler
1354  * or by processing slow-ring or fast-ring events within the HBA-timer
1355  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1356  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1357  * is configured and there is no heart-beat mailbox command outstanding, a
1358  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1359  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1360  * to offline.
1361  **/
1362 void
1363 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1364 {
1365         struct lpfc_vport **vports;
1366         LPFC_MBOXQ_t *pmboxq;
1367         struct lpfc_dmabuf *buf_ptr;
1368         int retval, i;
1369         struct lpfc_sli *psli = &phba->sli;
1370         LIST_HEAD(completions);
1371
1372         if (phba->cfg_xri_rebalancing) {
1373                 /* Multi-XRI pools handler */
1374                 lpfc_hb_mxp_handler(phba);
1375         }
1376
1377         vports = lpfc_create_vport_work_array(phba);
1378         if (vports != NULL)
1379                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1380                         lpfc_rcv_seq_check_edtov(vports[i]);
1381                         lpfc_fdmi_num_disc_check(vports[i]);
1382                 }
1383         lpfc_destroy_vport_work_array(phba, vports);
1384
1385         if ((phba->link_state == LPFC_HBA_ERROR) ||
1386                 (phba->pport->load_flag & FC_UNLOADING) ||
1387                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1388                 return;
1389
1390         spin_lock_irq(&phba->pport->work_port_lock);
1391
1392         if (time_after(phba->last_completion_time +
1393                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1394                         jiffies)) {
1395                 spin_unlock_irq(&phba->pport->work_port_lock);
1396                 if (!phba->hb_outstanding)
1397                         mod_timer(&phba->hb_tmofunc,
1398                                 jiffies +
1399                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1400                 else
1401                         mod_timer(&phba->hb_tmofunc,
1402                                 jiffies +
1403                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1404                 return;
1405         }
1406         spin_unlock_irq(&phba->pport->work_port_lock);
1407
1408         if (phba->elsbuf_cnt &&
1409                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1410                 spin_lock_irq(&phba->hbalock);
1411                 list_splice_init(&phba->elsbuf, &completions);
1412                 phba->elsbuf_cnt = 0;
1413                 phba->elsbuf_prev_cnt = 0;
1414                 spin_unlock_irq(&phba->hbalock);
1415
1416                 while (!list_empty(&completions)) {
1417                         list_remove_head(&completions, buf_ptr,
1418                                 struct lpfc_dmabuf, list);
1419                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1420                         kfree(buf_ptr);
1421                 }
1422         }
1423         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1424
1425         /* If there is no heart beat outstanding, issue a heartbeat command */
1426         if (phba->cfg_enable_hba_heartbeat) {
1427                 if (!phba->hb_outstanding) {
1428                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1429                                 (list_empty(&psli->mboxq))) {
1430                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1431                                                         GFP_KERNEL);
1432                                 if (!pmboxq) {
1433                                         mod_timer(&phba->hb_tmofunc,
1434                                                  jiffies +
1435                                                  msecs_to_jiffies(1000 *
1436                                                  LPFC_HB_MBOX_INTERVAL));
1437                                         return;
1438                                 }
1439
1440                                 lpfc_heart_beat(phba, pmboxq);
1441                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1442                                 pmboxq->vport = phba->pport;
1443                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1444                                                 MBX_NOWAIT);
1445
1446                                 if (retval != MBX_BUSY &&
1447                                         retval != MBX_SUCCESS) {
1448                                         mempool_free(pmboxq,
1449                                                         phba->mbox_mem_pool);
1450                                         mod_timer(&phba->hb_tmofunc,
1451                                                 jiffies +
1452                                                 msecs_to_jiffies(1000 *
1453                                                 LPFC_HB_MBOX_INTERVAL));
1454                                         return;
1455                                 }
1456                                 phba->skipped_hb = 0;
1457                                 phba->hb_outstanding = 1;
1458                         } else if (time_before_eq(phba->last_completion_time,
1459                                         phba->skipped_hb)) {
1460                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1461                                         "2857 Last completion time not "
1462                                         " updated in %d ms\n",
1463                                         jiffies_to_msecs(jiffies
1464                                                  - phba->last_completion_time));
1465                         } else
1466                                 phba->skipped_hb = jiffies;
1467
1468                         mod_timer(&phba->hb_tmofunc,
1469                                  jiffies +
1470                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1471                         return;
1472                 } else {
1473                         /*
1474                         * If heart beat timeout called with hb_outstanding set
1475                         * we need to give the hb mailbox cmd a chance to
1476                         * complete or TMO.
1477                         */
1478                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1479                                         "0459 Adapter heartbeat still out"
1480                                         "standing:last compl time was %d ms.\n",
1481                                         jiffies_to_msecs(jiffies
1482                                                  - phba->last_completion_time));
1483                         mod_timer(&phba->hb_tmofunc,
1484                                 jiffies +
1485                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1486                 }
1487         } else {
1488                         mod_timer(&phba->hb_tmofunc,
1489                                 jiffies +
1490                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1491         }
1492 }
1493
1494 /**
1495  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1496  * @phba: pointer to lpfc hba data structure.
1497  *
1498  * This routine is called to bring the HBA offline when HBA hardware error
1499  * other than Port Error 6 has been detected.
1500  **/
1501 static void
1502 lpfc_offline_eratt(struct lpfc_hba *phba)
1503 {
1504         struct lpfc_sli   *psli = &phba->sli;
1505
1506         spin_lock_irq(&phba->hbalock);
1507         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1508         spin_unlock_irq(&phba->hbalock);
1509         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1510
1511         lpfc_offline(phba);
1512         lpfc_reset_barrier(phba);
1513         spin_lock_irq(&phba->hbalock);
1514         lpfc_sli_brdreset(phba);
1515         spin_unlock_irq(&phba->hbalock);
1516         lpfc_hba_down_post(phba);
1517         lpfc_sli_brdready(phba, HS_MBRDY);
1518         lpfc_unblock_mgmt_io(phba);
1519         phba->link_state = LPFC_HBA_ERROR;
1520         return;
1521 }
1522
1523 /**
1524  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1525  * @phba: pointer to lpfc hba data structure.
1526  *
1527  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1528  * other than Port Error 6 has been detected.
1529  **/
1530 void
1531 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1532 {
1533         spin_lock_irq(&phba->hbalock);
1534         phba->link_state = LPFC_HBA_ERROR;
1535         spin_unlock_irq(&phba->hbalock);
1536
1537         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1538         lpfc_offline(phba);
1539         lpfc_hba_down_post(phba);
1540         lpfc_unblock_mgmt_io(phba);
1541 }
1542
1543 /**
1544  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1545  * @phba: pointer to lpfc hba data structure.
1546  *
1547  * This routine is invoked to handle the deferred HBA hardware error
1548  * conditions. This type of error is indicated by HBA by setting ER1
1549  * and another ER bit in the host status register. The driver will
1550  * wait until the ER1 bit clears before handling the error condition.
1551  **/
1552 static void
1553 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1554 {
1555         uint32_t old_host_status = phba->work_hs;
1556         struct lpfc_sli *psli = &phba->sli;
1557
1558         /* If the pci channel is offline, ignore possible errors,
1559          * since we cannot communicate with the pci card anyway.
1560          */
1561         if (pci_channel_offline(phba->pcidev)) {
1562                 spin_lock_irq(&phba->hbalock);
1563                 phba->hba_flag &= ~DEFER_ERATT;
1564                 spin_unlock_irq(&phba->hbalock);
1565                 return;
1566         }
1567
1568         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1569                 "0479 Deferred Adapter Hardware Error "
1570                 "Data: x%x x%x x%x\n",
1571                 phba->work_hs,
1572                 phba->work_status[0], phba->work_status[1]);
1573
1574         spin_lock_irq(&phba->hbalock);
1575         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1576         spin_unlock_irq(&phba->hbalock);
1577
1578
1579         /*
1580          * Firmware stops when it triggred erratt. That could cause the I/Os
1581          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1582          * SCSI layer retry it after re-establishing link.
1583          */
1584         lpfc_sli_abort_fcp_rings(phba);
1585
1586         /*
1587          * There was a firmware error. Take the hba offline and then
1588          * attempt to restart it.
1589          */
1590         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1591         lpfc_offline(phba);
1592
1593         /* Wait for the ER1 bit to clear.*/
1594         while (phba->work_hs & HS_FFER1) {
1595                 msleep(100);
1596                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1597                         phba->work_hs = UNPLUG_ERR ;
1598                         break;
1599                 }
1600                 /* If driver is unloading let the worker thread continue */
1601                 if (phba->pport->load_flag & FC_UNLOADING) {
1602                         phba->work_hs = 0;
1603                         break;
1604                 }
1605         }
1606
1607         /*
1608          * This is to ptrotect against a race condition in which
1609          * first write to the host attention register clear the
1610          * host status register.
1611          */
1612         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1613                 phba->work_hs = old_host_status & ~HS_FFER1;
1614
1615         spin_lock_irq(&phba->hbalock);
1616         phba->hba_flag &= ~DEFER_ERATT;
1617         spin_unlock_irq(&phba->hbalock);
1618         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1619         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1620 }
1621
1622 static void
1623 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1624 {
1625         struct lpfc_board_event_header board_event;
1626         struct Scsi_Host *shost;
1627
1628         board_event.event_type = FC_REG_BOARD_EVENT;
1629         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1630         shost = lpfc_shost_from_vport(phba->pport);
1631         fc_host_post_vendor_event(shost, fc_get_event_number(),
1632                                   sizeof(board_event),
1633                                   (char *) &board_event,
1634                                   LPFC_NL_VENDOR_ID);
1635 }
1636
1637 /**
1638  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1639  * @phba: pointer to lpfc hba data structure.
1640  *
1641  * This routine is invoked to handle the following HBA hardware error
1642  * conditions:
1643  * 1 - HBA error attention interrupt
1644  * 2 - DMA ring index out of range
1645  * 3 - Mailbox command came back as unknown
1646  **/
1647 static void
1648 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1649 {
1650         struct lpfc_vport *vport = phba->pport;
1651         struct lpfc_sli   *psli = &phba->sli;
1652         uint32_t event_data;
1653         unsigned long temperature;
1654         struct temp_event temp_event_data;
1655         struct Scsi_Host  *shost;
1656
1657         /* If the pci channel is offline, ignore possible errors,
1658          * since we cannot communicate with the pci card anyway.
1659          */
1660         if (pci_channel_offline(phba->pcidev)) {
1661                 spin_lock_irq(&phba->hbalock);
1662                 phba->hba_flag &= ~DEFER_ERATT;
1663                 spin_unlock_irq(&phba->hbalock);
1664                 return;
1665         }
1666
1667         /* If resets are disabled then leave the HBA alone and return */
1668         if (!phba->cfg_enable_hba_reset)
1669                 return;
1670
1671         /* Send an internal error event to mgmt application */
1672         lpfc_board_errevt_to_mgmt(phba);
1673
1674         if (phba->hba_flag & DEFER_ERATT)
1675                 lpfc_handle_deferred_eratt(phba);
1676
1677         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1678                 if (phba->work_hs & HS_FFER6)
1679                         /* Re-establishing Link */
1680                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1681                                         "1301 Re-establishing Link "
1682                                         "Data: x%x x%x x%x\n",
1683                                         phba->work_hs, phba->work_status[0],
1684                                         phba->work_status[1]);
1685                 if (phba->work_hs & HS_FFER8)
1686                         /* Device Zeroization */
1687                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1688                                         "2861 Host Authentication device "
1689                                         "zeroization Data:x%x x%x x%x\n",
1690                                         phba->work_hs, phba->work_status[0],
1691                                         phba->work_status[1]);
1692
1693                 spin_lock_irq(&phba->hbalock);
1694                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1695                 spin_unlock_irq(&phba->hbalock);
1696
1697                 /*
1698                 * Firmware stops when it triggled erratt with HS_FFER6.
1699                 * That could cause the I/Os dropped by the firmware.
1700                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1701                 * retry it after re-establishing link.
1702                 */
1703                 lpfc_sli_abort_fcp_rings(phba);
1704
1705                 /*
1706                  * There was a firmware error.  Take the hba offline and then
1707                  * attempt to restart it.
1708                  */
1709                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1710                 lpfc_offline(phba);
1711                 lpfc_sli_brdrestart(phba);
1712                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1713                         lpfc_unblock_mgmt_io(phba);
1714                         return;
1715                 }
1716                 lpfc_unblock_mgmt_io(phba);
1717         } else if (phba->work_hs & HS_CRIT_TEMP) {
1718                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1719                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1720                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1721                 temp_event_data.data = (uint32_t)temperature;
1722
1723                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1724                                 "0406 Adapter maximum temperature exceeded "
1725                                 "(%ld), taking this port offline "
1726                                 "Data: x%x x%x x%x\n",
1727                                 temperature, phba->work_hs,
1728                                 phba->work_status[0], phba->work_status[1]);
1729
1730                 shost = lpfc_shost_from_vport(phba->pport);
1731                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1732                                           sizeof(temp_event_data),
1733                                           (char *) &temp_event_data,
1734                                           SCSI_NL_VID_TYPE_PCI
1735                                           | PCI_VENDOR_ID_EMULEX);
1736
1737                 spin_lock_irq(&phba->hbalock);
1738                 phba->over_temp_state = HBA_OVER_TEMP;
1739                 spin_unlock_irq(&phba->hbalock);
1740                 lpfc_offline_eratt(phba);
1741
1742         } else {
1743                 /* The if clause above forces this code path when the status
1744                  * failure is a value other than FFER6. Do not call the offline
1745                  * twice. This is the adapter hardware error path.
1746                  */
1747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1748                                 "0457 Adapter Hardware Error "
1749                                 "Data: x%x x%x x%x\n",
1750                                 phba->work_hs,
1751                                 phba->work_status[0], phba->work_status[1]);
1752
1753                 event_data = FC_REG_DUMP_EVENT;
1754                 shost = lpfc_shost_from_vport(vport);
1755                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1756                                 sizeof(event_data), (char *) &event_data,
1757                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1758
1759                 lpfc_offline_eratt(phba);
1760         }
1761         return;
1762 }
1763
1764 /**
1765  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1766  * @phba: pointer to lpfc hba data structure.
1767  * @mbx_action: flag for mailbox shutdown action.
1768  *
1769  * This routine is invoked to perform an SLI4 port PCI function reset in
1770  * response to port status register polling attention. It waits for port
1771  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1772  * During this process, interrupt vectors are freed and later requested
1773  * for handling possible port resource change.
1774  **/
1775 static int
1776 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1777                             bool en_rn_msg)
1778 {
1779         int rc;
1780         uint32_t intr_mode;
1781
1782         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1783             LPFC_SLI_INTF_IF_TYPE_2) {
1784                 /*
1785                  * On error status condition, driver need to wait for port
1786                  * ready before performing reset.
1787                  */
1788                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1789                 if (rc)
1790                         return rc;
1791         }
1792
1793         /* need reset: attempt for port recovery */
1794         if (en_rn_msg)
1795                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1796                                 "2887 Reset Needed: Attempting Port "
1797                                 "Recovery...\n");
1798         lpfc_offline_prep(phba, mbx_action);
1799         lpfc_offline(phba);
1800         /* release interrupt for possible resource change */
1801         lpfc_sli4_disable_intr(phba);
1802         rc = lpfc_sli_brdrestart(phba);
1803         if (rc) {
1804                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1805                                 "6309 Failed to restart board\n");
1806                 return rc;
1807         }
1808         /* request and enable interrupt */
1809         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1810         if (intr_mode == LPFC_INTR_ERROR) {
1811                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1812                                 "3175 Failed to enable interrupt\n");
1813                 return -EIO;
1814         }
1815         phba->intr_mode = intr_mode;
1816         rc = lpfc_online(phba);
1817         if (rc == 0)
1818                 lpfc_unblock_mgmt_io(phba);
1819
1820         return rc;
1821 }
1822
1823 /**
1824  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1825  * @phba: pointer to lpfc hba data structure.
1826  *
1827  * This routine is invoked to handle the SLI4 HBA hardware error attention
1828  * conditions.
1829  **/
1830 static void
1831 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1832 {
1833         struct lpfc_vport *vport = phba->pport;
1834         uint32_t event_data;
1835         struct Scsi_Host *shost;
1836         uint32_t if_type;
1837         struct lpfc_register portstat_reg = {0};
1838         uint32_t reg_err1, reg_err2;
1839         uint32_t uerrlo_reg, uemasklo_reg;
1840         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1841         bool en_rn_msg = true;
1842         struct temp_event temp_event_data;
1843         struct lpfc_register portsmphr_reg;
1844         int rc, i;
1845
1846         /* If the pci channel is offline, ignore possible errors, since
1847          * we cannot communicate with the pci card anyway.
1848          */
1849         if (pci_channel_offline(phba->pcidev)) {
1850                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1851                                 "3166 pci channel is offline\n");
1852                 lpfc_sli4_offline_eratt(phba);
1853                 return;
1854         }
1855
1856         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1857         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1858         switch (if_type) {
1859         case LPFC_SLI_INTF_IF_TYPE_0:
1860                 pci_rd_rc1 = lpfc_readl(
1861                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1862                                 &uerrlo_reg);
1863                 pci_rd_rc2 = lpfc_readl(
1864                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1865                                 &uemasklo_reg);
1866                 /* consider PCI bus read error as pci_channel_offline */
1867                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1868                         return;
1869                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1870                         lpfc_sli4_offline_eratt(phba);
1871                         return;
1872                 }
1873                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1874                                 "7623 Checking UE recoverable");
1875
1876                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1877                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1878                                        &portsmphr_reg.word0))
1879                                 continue;
1880
1881                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1882                                                    &portsmphr_reg);
1883                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1884                             LPFC_PORT_SEM_UE_RECOVERABLE)
1885                                 break;
1886                         /*Sleep for 1Sec, before checking SEMAPHORE */
1887                         msleep(1000);
1888                 }
1889
1890                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1891                                 "4827 smphr_port_status x%x : Waited %dSec",
1892                                 smphr_port_status, i);
1893
1894                 /* Recoverable UE, reset the HBA device */
1895                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1896                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1897                         for (i = 0; i < 20; i++) {
1898                                 msleep(1000);
1899                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1900                                     &portsmphr_reg.word0) &&
1901                                     (LPFC_POST_STAGE_PORT_READY ==
1902                                      bf_get(lpfc_port_smphr_port_status,
1903                                      &portsmphr_reg))) {
1904                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1905                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1906                                         if (rc == 0)
1907                                                 return;
1908                                         lpfc_printf_log(phba,
1909                                                 KERN_ERR, LOG_INIT,
1910                                                 "4215 Failed to recover UE");
1911                                         break;
1912                                 }
1913                         }
1914                 }
1915                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1916                                 "7624 Firmware not ready: Failing UE recovery,"
1917                                 " waited %dSec", i);
1918                 lpfc_sli4_offline_eratt(phba);
1919                 break;
1920
1921         case LPFC_SLI_INTF_IF_TYPE_2:
1922         case LPFC_SLI_INTF_IF_TYPE_6:
1923                 pci_rd_rc1 = lpfc_readl(
1924                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1925                                 &portstat_reg.word0);
1926                 /* consider PCI bus read error as pci_channel_offline */
1927                 if (pci_rd_rc1 == -EIO) {
1928                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1929                                 "3151 PCI bus read access failure: x%x\n",
1930                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1931                         lpfc_sli4_offline_eratt(phba);
1932                         return;
1933                 }
1934                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1935                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1936                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1937                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1938                                 "2889 Port Overtemperature event, "
1939                                 "taking port offline Data: x%x x%x\n",
1940                                 reg_err1, reg_err2);
1941
1942                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1943                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1944                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1945                         temp_event_data.data = 0xFFFFFFFF;
1946
1947                         shost = lpfc_shost_from_vport(phba->pport);
1948                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1949                                                   sizeof(temp_event_data),
1950                                                   (char *)&temp_event_data,
1951                                                   SCSI_NL_VID_TYPE_PCI
1952                                                   | PCI_VENDOR_ID_EMULEX);
1953
1954                         spin_lock_irq(&phba->hbalock);
1955                         phba->over_temp_state = HBA_OVER_TEMP;
1956                         spin_unlock_irq(&phba->hbalock);
1957                         lpfc_sli4_offline_eratt(phba);
1958                         return;
1959                 }
1960                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1961                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1962                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1963                                         "3143 Port Down: Firmware Update "
1964                                         "Detected\n");
1965                         en_rn_msg = false;
1966                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1967                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1968                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1969                                         "3144 Port Down: Debug Dump\n");
1970                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1971                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1972                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1973                                         "3145 Port Down: Provisioning\n");
1974
1975                 /* If resets are disabled then leave the HBA alone and return */
1976                 if (!phba->cfg_enable_hba_reset)
1977                         return;
1978
1979                 /* Check port status register for function reset */
1980                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1981                                 en_rn_msg);
1982                 if (rc == 0) {
1983                         /* don't report event on forced debug dump */
1984                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1985                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1986                                 return;
1987                         else
1988                                 break;
1989                 }
1990                 /* fall through for not able to recover */
1991                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1992                                 "3152 Unrecoverable error, bring the port "
1993                                 "offline\n");
1994                 lpfc_sli4_offline_eratt(phba);
1995                 break;
1996         case LPFC_SLI_INTF_IF_TYPE_1:
1997         default:
1998                 break;
1999         }
2000         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2001                         "3123 Report dump event to upper layer\n");
2002         /* Send an internal error event to mgmt application */
2003         lpfc_board_errevt_to_mgmt(phba);
2004
2005         event_data = FC_REG_DUMP_EVENT;
2006         shost = lpfc_shost_from_vport(vport);
2007         fc_host_post_vendor_event(shost, fc_get_event_number(),
2008                                   sizeof(event_data), (char *) &event_data,
2009                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2010 }
2011
2012 /**
2013  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2014  * @phba: pointer to lpfc HBA data structure.
2015  *
2016  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2017  * routine from the API jump table function pointer from the lpfc_hba struct.
2018  *
2019  * Return codes
2020  *   0 - success.
2021  *   Any other value - error.
2022  **/
2023 void
2024 lpfc_handle_eratt(struct lpfc_hba *phba)
2025 {
2026         (*phba->lpfc_handle_eratt)(phba);
2027 }
2028
2029 /**
2030  * lpfc_handle_latt - The HBA link event handler
2031  * @phba: pointer to lpfc hba data structure.
2032  *
2033  * This routine is invoked from the worker thread to handle a HBA host
2034  * attention link event. SLI3 only.
2035  **/
2036 void
2037 lpfc_handle_latt(struct lpfc_hba *phba)
2038 {
2039         struct lpfc_vport *vport = phba->pport;
2040         struct lpfc_sli   *psli = &phba->sli;
2041         LPFC_MBOXQ_t *pmb;
2042         volatile uint32_t control;
2043         struct lpfc_dmabuf *mp;
2044         int rc = 0;
2045
2046         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2047         if (!pmb) {
2048                 rc = 1;
2049                 goto lpfc_handle_latt_err_exit;
2050         }
2051
2052         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2053         if (!mp) {
2054                 rc = 2;
2055                 goto lpfc_handle_latt_free_pmb;
2056         }
2057
2058         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2059         if (!mp->virt) {
2060                 rc = 3;
2061                 goto lpfc_handle_latt_free_mp;
2062         }
2063
2064         /* Cleanup any outstanding ELS commands */
2065         lpfc_els_flush_all_cmd(phba);
2066
2067         psli->slistat.link_event++;
2068         lpfc_read_topology(phba, pmb, mp);
2069         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2070         pmb->vport = vport;
2071         /* Block ELS IOCBs until we have processed this mbox command */
2072         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2073         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2074         if (rc == MBX_NOT_FINISHED) {
2075                 rc = 4;
2076                 goto lpfc_handle_latt_free_mbuf;
2077         }
2078
2079         /* Clear Link Attention in HA REG */
2080         spin_lock_irq(&phba->hbalock);
2081         writel(HA_LATT, phba->HAregaddr);
2082         readl(phba->HAregaddr); /* flush */
2083         spin_unlock_irq(&phba->hbalock);
2084
2085         return;
2086
2087 lpfc_handle_latt_free_mbuf:
2088         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2089         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2090 lpfc_handle_latt_free_mp:
2091         kfree(mp);
2092 lpfc_handle_latt_free_pmb:
2093         mempool_free(pmb, phba->mbox_mem_pool);
2094 lpfc_handle_latt_err_exit:
2095         /* Enable Link attention interrupts */
2096         spin_lock_irq(&phba->hbalock);
2097         psli->sli_flag |= LPFC_PROCESS_LA;
2098         control = readl(phba->HCregaddr);
2099         control |= HC_LAINT_ENA;
2100         writel(control, phba->HCregaddr);
2101         readl(phba->HCregaddr); /* flush */
2102
2103         /* Clear Link Attention in HA REG */
2104         writel(HA_LATT, phba->HAregaddr);
2105         readl(phba->HAregaddr); /* flush */
2106         spin_unlock_irq(&phba->hbalock);
2107         lpfc_linkdown(phba);
2108         phba->link_state = LPFC_HBA_ERROR;
2109
2110         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2111                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2112
2113         return;
2114 }
2115
2116 /**
2117  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2118  * @phba: pointer to lpfc hba data structure.
2119  * @vpd: pointer to the vital product data.
2120  * @len: length of the vital product data in bytes.
2121  *
2122  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2123  * an array of characters. In this routine, the ModelName, ProgramType, and
2124  * ModelDesc, etc. fields of the phba data structure will be populated.
2125  *
2126  * Return codes
2127  *   0 - pointer to the VPD passed in is NULL
2128  *   1 - success
2129  **/
2130 int
2131 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2132 {
2133         uint8_t lenlo, lenhi;
2134         int Length;
2135         int i, j;
2136         int finished = 0;
2137         int index = 0;
2138
2139         if (!vpd)
2140                 return 0;
2141
2142         /* Vital Product */
2143         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2144                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2145                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2146                         (uint32_t) vpd[3]);
2147         while (!finished && (index < (len - 4))) {
2148                 switch (vpd[index]) {
2149                 case 0x82:
2150                 case 0x91:
2151                         index += 1;
2152                         lenlo = vpd[index];
2153                         index += 1;
2154                         lenhi = vpd[index];
2155                         index += 1;
2156                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2157                         index += i;
2158                         break;
2159                 case 0x90:
2160                         index += 1;
2161                         lenlo = vpd[index];
2162                         index += 1;
2163                         lenhi = vpd[index];
2164                         index += 1;
2165                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2166                         if (Length > len - index)
2167                                 Length = len - index;
2168                         while (Length > 0) {
2169                         /* Look for Serial Number */
2170                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2171                                 index += 2;
2172                                 i = vpd[index];
2173                                 index += 1;
2174                                 j = 0;
2175                                 Length -= (3+i);
2176                                 while(i--) {
2177                                         phba->SerialNumber[j++] = vpd[index++];
2178                                         if (j == 31)
2179                                                 break;
2180                                 }
2181                                 phba->SerialNumber[j] = 0;
2182                                 continue;
2183                         }
2184                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2185                                 phba->vpd_flag |= VPD_MODEL_DESC;
2186                                 index += 2;
2187                                 i = vpd[index];
2188                                 index += 1;
2189                                 j = 0;
2190                                 Length -= (3+i);
2191                                 while(i--) {
2192                                         phba->ModelDesc[j++] = vpd[index++];
2193                                         if (j == 255)
2194                                                 break;
2195                                 }
2196                                 phba->ModelDesc[j] = 0;
2197                                 continue;
2198                         }
2199                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2200                                 phba->vpd_flag |= VPD_MODEL_NAME;
2201                                 index += 2;
2202                                 i = vpd[index];
2203                                 index += 1;
2204                                 j = 0;
2205                                 Length -= (3+i);
2206                                 while(i--) {
2207                                         phba->ModelName[j++] = vpd[index++];
2208                                         if (j == 79)
2209                                                 break;
2210                                 }
2211                                 phba->ModelName[j] = 0;
2212                                 continue;
2213                         }
2214                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2215                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2216                                 index += 2;
2217                                 i = vpd[index];
2218                                 index += 1;
2219                                 j = 0;
2220                                 Length -= (3+i);
2221                                 while(i--) {
2222                                         phba->ProgramType[j++] = vpd[index++];
2223                                         if (j == 255)
2224                                                 break;
2225                                 }
2226                                 phba->ProgramType[j] = 0;
2227                                 continue;
2228                         }
2229                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2230                                 phba->vpd_flag |= VPD_PORT;
2231                                 index += 2;
2232                                 i = vpd[index];
2233                                 index += 1;
2234                                 j = 0;
2235                                 Length -= (3+i);
2236                                 while(i--) {
2237                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2238                                             (phba->sli4_hba.pport_name_sta ==
2239                                              LPFC_SLI4_PPNAME_GET)) {
2240                                                 j++;
2241                                                 index++;
2242                                         } else
2243                                                 phba->Port[j++] = vpd[index++];
2244                                         if (j == 19)
2245                                                 break;
2246                                 }
2247                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2248                                     (phba->sli4_hba.pport_name_sta ==
2249                                      LPFC_SLI4_PPNAME_NON))
2250                                         phba->Port[j] = 0;
2251                                 continue;
2252                         }
2253                         else {
2254                                 index += 2;
2255                                 i = vpd[index];
2256                                 index += 1;
2257                                 index += i;
2258                                 Length -= (3 + i);
2259                         }
2260                 }
2261                 finished = 0;
2262                 break;
2263                 case 0x78:
2264                         finished = 1;
2265                         break;
2266                 default:
2267                         index ++;
2268                         break;
2269                 }
2270         }
2271
2272         return(1);
2273 }
2274
2275 /**
2276  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2277  * @phba: pointer to lpfc hba data structure.
2278  * @mdp: pointer to the data structure to hold the derived model name.
2279  * @descp: pointer to the data structure to hold the derived description.
2280  *
2281  * This routine retrieves HBA's description based on its registered PCI device
2282  * ID. The @descp passed into this function points to an array of 256 chars. It
2283  * shall be returned with the model name, maximum speed, and the host bus type.
2284  * The @mdp passed into this function points to an array of 80 chars. When the
2285  * function returns, the @mdp will be filled with the model name.
2286  **/
2287 static void
2288 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2289 {
2290         lpfc_vpd_t *vp;
2291         uint16_t dev_id = phba->pcidev->device;
2292         int max_speed;
2293         int GE = 0;
2294         int oneConnect = 0; /* default is not a oneConnect */
2295         struct {
2296                 char *name;
2297                 char *bus;
2298                 char *function;
2299         } m = {"<Unknown>", "", ""};
2300
2301         if (mdp && mdp[0] != '\0'
2302                 && descp && descp[0] != '\0')
2303                 return;
2304
2305         if (phba->lmt & LMT_64Gb)
2306                 max_speed = 64;
2307         else if (phba->lmt & LMT_32Gb)
2308                 max_speed = 32;
2309         else if (phba->lmt & LMT_16Gb)
2310                 max_speed = 16;
2311         else if (phba->lmt & LMT_10Gb)
2312                 max_speed = 10;
2313         else if (phba->lmt & LMT_8Gb)
2314                 max_speed = 8;
2315         else if (phba->lmt & LMT_4Gb)
2316                 max_speed = 4;
2317         else if (phba->lmt & LMT_2Gb)
2318                 max_speed = 2;
2319         else if (phba->lmt & LMT_1Gb)
2320                 max_speed = 1;
2321         else
2322                 max_speed = 0;
2323
2324         vp = &phba->vpd;
2325
2326         switch (dev_id) {
2327         case PCI_DEVICE_ID_FIREFLY:
2328                 m = (typeof(m)){"LP6000", "PCI",
2329                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2330                 break;
2331         case PCI_DEVICE_ID_SUPERFLY:
2332                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2333                         m = (typeof(m)){"LP7000", "PCI", ""};
2334                 else
2335                         m = (typeof(m)){"LP7000E", "PCI", ""};
2336                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2337                 break;
2338         case PCI_DEVICE_ID_DRAGONFLY:
2339                 m = (typeof(m)){"LP8000", "PCI",
2340                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2341                 break;
2342         case PCI_DEVICE_ID_CENTAUR:
2343                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2344                         m = (typeof(m)){"LP9002", "PCI", ""};
2345                 else
2346                         m = (typeof(m)){"LP9000", "PCI", ""};
2347                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2348                 break;
2349         case PCI_DEVICE_ID_RFLY:
2350                 m = (typeof(m)){"LP952", "PCI",
2351                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_PEGASUS:
2354                 m = (typeof(m)){"LP9802", "PCI-X",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_THOR:
2358                 m = (typeof(m)){"LP10000", "PCI-X",
2359                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_VIPER:
2362                 m = (typeof(m)){"LPX1000",  "PCI-X",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_PFLY:
2366                 m = (typeof(m)){"LP982", "PCI-X",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_TFLY:
2370                 m = (typeof(m)){"LP1050", "PCI-X",
2371                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2372                 break;
2373         case PCI_DEVICE_ID_HELIOS:
2374                 m = (typeof(m)){"LP11000", "PCI-X2",
2375                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2376                 break;
2377         case PCI_DEVICE_ID_HELIOS_SCSP:
2378                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2379                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2380                 break;
2381         case PCI_DEVICE_ID_HELIOS_DCSP:
2382                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2383                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_NEPTUNE:
2386                 m = (typeof(m)){"LPe1000", "PCIe",
2387                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2388                 break;
2389         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2390                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2391                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2394                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2395                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_BMID:
2398                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_BSMB:
2401                 m = (typeof(m)){"LP111", "PCI-X2",
2402                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2403                 break;
2404         case PCI_DEVICE_ID_ZEPHYR:
2405                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2406                 break;
2407         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2408                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2409                 break;
2410         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2411                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2412                 GE = 1;
2413                 break;
2414         case PCI_DEVICE_ID_ZMID:
2415                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2416                 break;
2417         case PCI_DEVICE_ID_ZSMB:
2418                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2419                 break;
2420         case PCI_DEVICE_ID_LP101:
2421                 m = (typeof(m)){"LP101", "PCI-X",
2422                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_LP10000S:
2425                 m = (typeof(m)){"LP10000-S", "PCI",
2426                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2427                 break;
2428         case PCI_DEVICE_ID_LP11000S:
2429                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2430                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2431                 break;
2432         case PCI_DEVICE_ID_LPE11000S:
2433                 m = (typeof(m)){"LPe11000-S", "PCIe",
2434                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT:
2437                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_SAT_MID:
2440                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_SAT_SMB:
2443                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2444                 break;
2445         case PCI_DEVICE_ID_SAT_DCSP:
2446                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_SAT_SCSP:
2449                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_SAT_S:
2452                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2453                 break;
2454         case PCI_DEVICE_ID_HORNET:
2455                 m = (typeof(m)){"LP21000", "PCIe",
2456                                 "Obsolete, Unsupported FCoE Adapter"};
2457                 GE = 1;
2458                 break;
2459         case PCI_DEVICE_ID_PROTEUS_VF:
2460                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2461                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2462                 break;
2463         case PCI_DEVICE_ID_PROTEUS_PF:
2464                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2465                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2466                 break;
2467         case PCI_DEVICE_ID_PROTEUS_S:
2468                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2469                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2470                 break;
2471         case PCI_DEVICE_ID_TIGERSHARK:
2472                 oneConnect = 1;
2473                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2474                 break;
2475         case PCI_DEVICE_ID_TOMCAT:
2476                 oneConnect = 1;
2477                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2478                 break;
2479         case PCI_DEVICE_ID_FALCON:
2480                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2481                                 "EmulexSecure Fibre"};
2482                 break;
2483         case PCI_DEVICE_ID_BALIUS:
2484                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2485                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2486                 break;
2487         case PCI_DEVICE_ID_LANCER_FC:
2488                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2489                 break;
2490         case PCI_DEVICE_ID_LANCER_FC_VF:
2491                 m = (typeof(m)){"LPe16000", "PCIe",
2492                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2493                 break;
2494         case PCI_DEVICE_ID_LANCER_FCOE:
2495                 oneConnect = 1;
2496                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2497                 break;
2498         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2499                 oneConnect = 1;
2500                 m = (typeof(m)){"OCe15100", "PCIe",
2501                                 "Obsolete, Unsupported FCoE"};
2502                 break;
2503         case PCI_DEVICE_ID_LANCER_G6_FC:
2504                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2505                 break;
2506         case PCI_DEVICE_ID_LANCER_G7_FC:
2507                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2508                 break;
2509         case PCI_DEVICE_ID_SKYHAWK:
2510         case PCI_DEVICE_ID_SKYHAWK_VF:
2511                 oneConnect = 1;
2512                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2513                 break;
2514         default:
2515                 m = (typeof(m)){"Unknown", "", ""};
2516                 break;
2517         }
2518
2519         if (mdp && mdp[0] == '\0')
2520                 snprintf(mdp, 79,"%s", m.name);
2521         /*
2522          * oneConnect hba requires special processing, they are all initiators
2523          * and we put the port number on the end
2524          */
2525         if (descp && descp[0] == '\0') {
2526                 if (oneConnect)
2527                         snprintf(descp, 255,
2528                                 "Emulex OneConnect %s, %s Initiator %s",
2529                                 m.name, m.function,
2530                                 phba->Port);
2531                 else if (max_speed == 0)
2532                         snprintf(descp, 255,
2533                                 "Emulex %s %s %s",
2534                                 m.name, m.bus, m.function);
2535                 else
2536                         snprintf(descp, 255,
2537                                 "Emulex %s %d%s %s %s",
2538                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2539                                 m.bus, m.function);
2540         }
2541 }
2542
2543 /**
2544  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2545  * @phba: pointer to lpfc hba data structure.
2546  * @pring: pointer to a IOCB ring.
2547  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2548  *
2549  * This routine posts a given number of IOCBs with the associated DMA buffer
2550  * descriptors specified by the cnt argument to the given IOCB ring.
2551  *
2552  * Return codes
2553  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2554  **/
2555 int
2556 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2557 {
2558         IOCB_t *icmd;
2559         struct lpfc_iocbq *iocb;
2560         struct lpfc_dmabuf *mp1, *mp2;
2561
2562         cnt += pring->missbufcnt;
2563
2564         /* While there are buffers to post */
2565         while (cnt > 0) {
2566                 /* Allocate buffer for  command iocb */
2567                 iocb = lpfc_sli_get_iocbq(phba);
2568                 if (iocb == NULL) {
2569                         pring->missbufcnt = cnt;
2570                         return cnt;
2571                 }
2572                 icmd = &iocb->iocb;
2573
2574                 /* 2 buffers can be posted per command */
2575                 /* Allocate buffer to post */
2576                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2577                 if (mp1)
2578                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2579                 if (!mp1 || !mp1->virt) {
2580                         kfree(mp1);
2581                         lpfc_sli_release_iocbq(phba, iocb);
2582                         pring->missbufcnt = cnt;
2583                         return cnt;
2584                 }
2585
2586                 INIT_LIST_HEAD(&mp1->list);
2587                 /* Allocate buffer to post */
2588                 if (cnt > 1) {
2589                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2590                         if (mp2)
2591                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2592                                                             &mp2->phys);
2593                         if (!mp2 || !mp2->virt) {
2594                                 kfree(mp2);
2595                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2596                                 kfree(mp1);
2597                                 lpfc_sli_release_iocbq(phba, iocb);
2598                                 pring->missbufcnt = cnt;
2599                                 return cnt;
2600                         }
2601
2602                         INIT_LIST_HEAD(&mp2->list);
2603                 } else {
2604                         mp2 = NULL;
2605                 }
2606
2607                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2608                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2609                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2610                 icmd->ulpBdeCount = 1;
2611                 cnt--;
2612                 if (mp2) {
2613                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2614                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2615                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2616                         cnt--;
2617                         icmd->ulpBdeCount = 2;
2618                 }
2619
2620                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2621                 icmd->ulpLe = 1;
2622
2623                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2624                     IOCB_ERROR) {
2625                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2626                         kfree(mp1);
2627                         cnt++;
2628                         if (mp2) {
2629                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2630                                 kfree(mp2);
2631                                 cnt++;
2632                         }
2633                         lpfc_sli_release_iocbq(phba, iocb);
2634                         pring->missbufcnt = cnt;
2635                         return cnt;
2636                 }
2637                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2638                 if (mp2)
2639                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2640         }
2641         pring->missbufcnt = 0;
2642         return 0;
2643 }
2644
2645 /**
2646  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2647  * @phba: pointer to lpfc hba data structure.
2648  *
2649  * This routine posts initial receive IOCB buffers to the ELS ring. The
2650  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2651  * set to 64 IOCBs. SLI3 only.
2652  *
2653  * Return codes
2654  *   0 - success (currently always success)
2655  **/
2656 static int
2657 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2658 {
2659         struct lpfc_sli *psli = &phba->sli;
2660
2661         /* Ring 0, ELS / CT buffers */
2662         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2663         /* Ring 2 - FCP no buffers needed */
2664
2665         return 0;
2666 }
2667
2668 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2669
2670 /**
2671  * lpfc_sha_init - Set up initial array of hash table entries
2672  * @HashResultPointer: pointer to an array as hash table.
2673  *
2674  * This routine sets up the initial values to the array of hash table entries
2675  * for the LC HBAs.
2676  **/
2677 static void
2678 lpfc_sha_init(uint32_t * HashResultPointer)
2679 {
2680         HashResultPointer[0] = 0x67452301;
2681         HashResultPointer[1] = 0xEFCDAB89;
2682         HashResultPointer[2] = 0x98BADCFE;
2683         HashResultPointer[3] = 0x10325476;
2684         HashResultPointer[4] = 0xC3D2E1F0;
2685 }
2686
2687 /**
2688  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2689  * @HashResultPointer: pointer to an initial/result hash table.
2690  * @HashWorkingPointer: pointer to an working hash table.
2691  *
2692  * This routine iterates an initial hash table pointed by @HashResultPointer
2693  * with the values from the working hash table pointeed by @HashWorkingPointer.
2694  * The results are putting back to the initial hash table, returned through
2695  * the @HashResultPointer as the result hash table.
2696  **/
2697 static void
2698 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2699 {
2700         int t;
2701         uint32_t TEMP;
2702         uint32_t A, B, C, D, E;
2703         t = 16;
2704         do {
2705                 HashWorkingPointer[t] =
2706                     S(1,
2707                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2708                                                                      8] ^
2709                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2710         } while (++t <= 79);
2711         t = 0;
2712         A = HashResultPointer[0];
2713         B = HashResultPointer[1];
2714         C = HashResultPointer[2];
2715         D = HashResultPointer[3];
2716         E = HashResultPointer[4];
2717
2718         do {
2719                 if (t < 20) {
2720                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2721                 } else if (t < 40) {
2722                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2723                 } else if (t < 60) {
2724                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2725                 } else {
2726                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2727                 }
2728                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2729                 E = D;
2730                 D = C;
2731                 C = S(30, B);
2732                 B = A;
2733                 A = TEMP;
2734         } while (++t <= 79);
2735
2736         HashResultPointer[0] += A;
2737         HashResultPointer[1] += B;
2738         HashResultPointer[2] += C;
2739         HashResultPointer[3] += D;
2740         HashResultPointer[4] += E;
2741
2742 }
2743
2744 /**
2745  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2746  * @RandomChallenge: pointer to the entry of host challenge random number array.
2747  * @HashWorking: pointer to the entry of the working hash array.
2748  *
2749  * This routine calculates the working hash array referred by @HashWorking
2750  * from the challenge random numbers associated with the host, referred by
2751  * @RandomChallenge. The result is put into the entry of the working hash
2752  * array and returned by reference through @HashWorking.
2753  **/
2754 static void
2755 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2756 {
2757         *HashWorking = (*RandomChallenge ^ *HashWorking);
2758 }
2759
2760 /**
2761  * lpfc_hba_init - Perform special handling for LC HBA initialization
2762  * @phba: pointer to lpfc hba data structure.
2763  * @hbainit: pointer to an array of unsigned 32-bit integers.
2764  *
2765  * This routine performs the special handling for LC HBA initialization.
2766  **/
2767 void
2768 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2769 {
2770         int t;
2771         uint32_t *HashWorking;
2772         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2773
2774         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2775         if (!HashWorking)
2776                 return;
2777
2778         HashWorking[0] = HashWorking[78] = *pwwnn++;
2779         HashWorking[1] = HashWorking[79] = *pwwnn;
2780
2781         for (t = 0; t < 7; t++)
2782                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2783
2784         lpfc_sha_init(hbainit);
2785         lpfc_sha_iterate(hbainit, HashWorking);
2786         kfree(HashWorking);
2787 }
2788
2789 /**
2790  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2791  * @vport: pointer to a virtual N_Port data structure.
2792  *
2793  * This routine performs the necessary cleanups before deleting the @vport.
2794  * It invokes the discovery state machine to perform necessary state
2795  * transitions and to release the ndlps associated with the @vport. Note,
2796  * the physical port is treated as @vport 0.
2797  **/
2798 void
2799 lpfc_cleanup(struct lpfc_vport *vport)
2800 {
2801         struct lpfc_hba   *phba = vport->phba;
2802         struct lpfc_nodelist *ndlp, *next_ndlp;
2803         int i = 0;
2804
2805         if (phba->link_state > LPFC_LINK_DOWN)
2806                 lpfc_port_link_failure(vport);
2807
2808         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2809                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2810                         ndlp = lpfc_enable_node(vport, ndlp,
2811                                                 NLP_STE_UNUSED_NODE);
2812                         if (!ndlp)
2813                                 continue;
2814                         spin_lock_irq(&phba->ndlp_lock);
2815                         NLP_SET_FREE_REQ(ndlp);
2816                         spin_unlock_irq(&phba->ndlp_lock);
2817                         /* Trigger the release of the ndlp memory */
2818                         lpfc_nlp_put(ndlp);
2819                         continue;
2820                 }
2821                 spin_lock_irq(&phba->ndlp_lock);
2822                 if (NLP_CHK_FREE_REQ(ndlp)) {
2823                         /* The ndlp should not be in memory free mode already */
2824                         spin_unlock_irq(&phba->ndlp_lock);
2825                         continue;
2826                 } else
2827                         /* Indicate request for freeing ndlp memory */
2828                         NLP_SET_FREE_REQ(ndlp);
2829                 spin_unlock_irq(&phba->ndlp_lock);
2830
2831                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2832                     ndlp->nlp_DID == Fabric_DID) {
2833                         /* Just free up ndlp with Fabric_DID for vports */
2834                         lpfc_nlp_put(ndlp);
2835                         continue;
2836                 }
2837
2838                 /* take care of nodes in unused state before the state
2839                  * machine taking action.
2840                  */
2841                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2842                         lpfc_nlp_put(ndlp);
2843                         continue;
2844                 }
2845
2846                 if (ndlp->nlp_type & NLP_FABRIC)
2847                         lpfc_disc_state_machine(vport, ndlp, NULL,
2848                                         NLP_EVT_DEVICE_RECOVERY);
2849
2850                 lpfc_disc_state_machine(vport, ndlp, NULL,
2851                                              NLP_EVT_DEVICE_RM);
2852         }
2853
2854         /* At this point, ALL ndlp's should be gone
2855          * because of the previous NLP_EVT_DEVICE_RM.
2856          * Lets wait for this to happen, if needed.
2857          */
2858         while (!list_empty(&vport->fc_nodes)) {
2859                 if (i++ > 3000) {
2860                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2861                                 "0233 Nodelist not empty\n");
2862                         list_for_each_entry_safe(ndlp, next_ndlp,
2863                                                 &vport->fc_nodes, nlp_listp) {
2864                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2865                                                 LOG_NODE,
2866                                                 "0282 did:x%x ndlp:x%p "
2867                                                 "usgmap:x%x refcnt:%d\n",
2868                                                 ndlp->nlp_DID, (void *)ndlp,
2869                                                 ndlp->nlp_usg_map,
2870                                                 kref_read(&ndlp->kref));
2871                         }
2872                         break;
2873                 }
2874
2875                 /* Wait for any activity on ndlps to settle */
2876                 msleep(10);
2877         }
2878         lpfc_cleanup_vports_rrqs(vport, NULL);
2879 }
2880
2881 /**
2882  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2883  * @vport: pointer to a virtual N_Port data structure.
2884  *
2885  * This routine stops all the timers associated with a @vport. This function
2886  * is invoked before disabling or deleting a @vport. Note that the physical
2887  * port is treated as @vport 0.
2888  **/
2889 void
2890 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2891 {
2892         del_timer_sync(&vport->els_tmofunc);
2893         del_timer_sync(&vport->delayed_disc_tmo);
2894         lpfc_can_disctmo(vport);
2895         return;
2896 }
2897
2898 /**
2899  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2900  * @phba: pointer to lpfc hba data structure.
2901  *
2902  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2903  * caller of this routine should already hold the host lock.
2904  **/
2905 void
2906 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2907 {
2908         /* Clear pending FCF rediscovery wait flag */
2909         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2910
2911         /* Now, try to stop the timer */
2912         del_timer(&phba->fcf.redisc_wait);
2913 }
2914
2915 /**
2916  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2917  * @phba: pointer to lpfc hba data structure.
2918  *
2919  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2920  * checks whether the FCF rediscovery wait timer is pending with the host
2921  * lock held before proceeding with disabling the timer and clearing the
2922  * wait timer pendig flag.
2923  **/
2924 void
2925 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2926 {
2927         spin_lock_irq(&phba->hbalock);
2928         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2929                 /* FCF rediscovery timer already fired or stopped */
2930                 spin_unlock_irq(&phba->hbalock);
2931                 return;
2932         }
2933         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2934         /* Clear failover in progress flags */
2935         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2936         spin_unlock_irq(&phba->hbalock);
2937 }
2938
2939 /**
2940  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2941  * @phba: pointer to lpfc hba data structure.
2942  *
2943  * This routine stops all the timers associated with a HBA. This function is
2944  * invoked before either putting a HBA offline or unloading the driver.
2945  **/
2946 void
2947 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2948 {
2949         if (phba->pport)
2950                 lpfc_stop_vport_timers(phba->pport);
2951         cancel_delayed_work_sync(&phba->eq_delay_work);
2952         del_timer_sync(&phba->sli.mbox_tmo);
2953         del_timer_sync(&phba->fabric_block_timer);
2954         del_timer_sync(&phba->eratt_poll);
2955         del_timer_sync(&phba->hb_tmofunc);
2956         if (phba->sli_rev == LPFC_SLI_REV4) {
2957                 del_timer_sync(&phba->rrq_tmr);
2958                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2959         }
2960         phba->hb_outstanding = 0;
2961
2962         switch (phba->pci_dev_grp) {
2963         case LPFC_PCI_DEV_LP:
2964                 /* Stop any LightPulse device specific driver timers */
2965                 del_timer_sync(&phba->fcp_poll_timer);
2966                 break;
2967         case LPFC_PCI_DEV_OC:
2968                 /* Stop any OneConnect device specific driver timers */
2969                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2970                 break;
2971         default:
2972                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2973                                 "0297 Invalid device group (x%x)\n",
2974                                 phba->pci_dev_grp);
2975                 break;
2976         }
2977         return;
2978 }
2979
2980 /**
2981  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2982  * @phba: pointer to lpfc hba data structure.
2983  *
2984  * This routine marks a HBA's management interface as blocked. Once the HBA's
2985  * management interface is marked as blocked, all the user space access to
2986  * the HBA, whether they are from sysfs interface or libdfc interface will
2987  * all be blocked. The HBA is set to block the management interface when the
2988  * driver prepares the HBA interface for online or offline.
2989  **/
2990 static void
2991 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2992 {
2993         unsigned long iflag;
2994         uint8_t actcmd = MBX_HEARTBEAT;
2995         unsigned long timeout;
2996
2997         spin_lock_irqsave(&phba->hbalock, iflag);
2998         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2999         spin_unlock_irqrestore(&phba->hbalock, iflag);
3000         if (mbx_action == LPFC_MBX_NO_WAIT)
3001                 return;
3002         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3003         spin_lock_irqsave(&phba->hbalock, iflag);
3004         if (phba->sli.mbox_active) {
3005                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3006                 /* Determine how long we might wait for the active mailbox
3007                  * command to be gracefully completed by firmware.
3008                  */
3009                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3010                                 phba->sli.mbox_active) * 1000) + jiffies;
3011         }
3012         spin_unlock_irqrestore(&phba->hbalock, iflag);
3013
3014         /* Wait for the outstnading mailbox command to complete */
3015         while (phba->sli.mbox_active) {
3016                 /* Check active mailbox complete status every 2ms */
3017                 msleep(2);
3018                 if (time_after(jiffies, timeout)) {
3019                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3020                                 "2813 Mgmt IO is Blocked %x "
3021                                 "- mbox cmd %x still active\n",
3022                                 phba->sli.sli_flag, actcmd);
3023                         break;
3024                 }
3025         }
3026 }
3027
3028 /**
3029  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3030  * @phba: pointer to lpfc hba data structure.
3031  *
3032  * Allocate RPIs for all active remote nodes. This is needed whenever
3033  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3034  * is to fixup the temporary rpi assignments.
3035  **/
3036 void
3037 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3038 {
3039         struct lpfc_nodelist  *ndlp, *next_ndlp;
3040         struct lpfc_vport **vports;
3041         int i, rpi;
3042         unsigned long flags;
3043
3044         if (phba->sli_rev != LPFC_SLI_REV4)
3045                 return;
3046
3047         vports = lpfc_create_vport_work_array(phba);
3048         if (vports == NULL)
3049                 return;
3050
3051         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3052                 if (vports[i]->load_flag & FC_UNLOADING)
3053                         continue;
3054
3055                 list_for_each_entry_safe(ndlp, next_ndlp,
3056                                          &vports[i]->fc_nodes,
3057                                          nlp_listp) {
3058                         if (!NLP_CHK_NODE_ACT(ndlp))
3059                                 continue;
3060                         rpi = lpfc_sli4_alloc_rpi(phba);
3061                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3062                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3063                                 NLP_CLR_NODE_ACT(ndlp);
3064                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3065                                 continue;
3066                         }
3067                         ndlp->nlp_rpi = rpi;
3068                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3069                                          "0009 rpi:%x DID:%x "
3070                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3071                                          ndlp->nlp_DID, ndlp->nlp_flag,
3072                                          ndlp->nlp_usg_map, ndlp);
3073                 }
3074         }
3075         lpfc_destroy_vport_work_array(phba, vports);
3076 }
3077
3078 /**
3079  * lpfc_create_expedite_pool - create expedite pool
3080  * @phba: pointer to lpfc hba data structure.
3081  *
3082  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3083  * to expedite pool. Mark them as expedite.
3084  **/
3085 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3086 {
3087         struct lpfc_sli4_hdw_queue *qp;
3088         struct lpfc_io_buf *lpfc_ncmd;
3089         struct lpfc_io_buf *lpfc_ncmd_next;
3090         struct lpfc_epd_pool *epd_pool;
3091         unsigned long iflag;
3092
3093         epd_pool = &phba->epd_pool;
3094         qp = &phba->sli4_hba.hdwq[0];
3095
3096         spin_lock_init(&epd_pool->lock);
3097         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3098         spin_lock(&epd_pool->lock);
3099         INIT_LIST_HEAD(&epd_pool->list);
3100         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3101                                  &qp->lpfc_io_buf_list_put, list) {
3102                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3103                 lpfc_ncmd->expedite = true;
3104                 qp->put_io_bufs--;
3105                 epd_pool->count++;
3106                 if (epd_pool->count >= XRI_BATCH)
3107                         break;
3108         }
3109         spin_unlock(&epd_pool->lock);
3110         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3111 }
3112
3113 /**
3114  * lpfc_destroy_expedite_pool - destroy expedite pool
3115  * @phba: pointer to lpfc hba data structure.
3116  *
3117  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3118  * of HWQ 0. Clear the mark.
3119  **/
3120 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3121 {
3122         struct lpfc_sli4_hdw_queue *qp;
3123         struct lpfc_io_buf *lpfc_ncmd;
3124         struct lpfc_io_buf *lpfc_ncmd_next;
3125         struct lpfc_epd_pool *epd_pool;
3126         unsigned long iflag;
3127
3128         epd_pool = &phba->epd_pool;
3129         qp = &phba->sli4_hba.hdwq[0];
3130
3131         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3132         spin_lock(&epd_pool->lock);
3133         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3134                                  &epd_pool->list, list) {
3135                 list_move_tail(&lpfc_ncmd->list,
3136                                &qp->lpfc_io_buf_list_put);
3137                 lpfc_ncmd->flags = false;
3138                 qp->put_io_bufs++;
3139                 epd_pool->count--;
3140         }
3141         spin_unlock(&epd_pool->lock);
3142         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3143 }
3144
3145 /**
3146  * lpfc_create_multixri_pools - create multi-XRI pools
3147  * @phba: pointer to lpfc hba data structure.
3148  *
3149  * This routine initialize public, private per HWQ. Then, move XRIs from
3150  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3151  * Initialized.
3152  **/
3153 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3154 {
3155         u32 i, j;
3156         u32 hwq_count;
3157         u32 count_per_hwq;
3158         struct lpfc_io_buf *lpfc_ncmd;
3159         struct lpfc_io_buf *lpfc_ncmd_next;
3160         unsigned long iflag;
3161         struct lpfc_sli4_hdw_queue *qp;
3162         struct lpfc_multixri_pool *multixri_pool;
3163         struct lpfc_pbl_pool *pbl_pool;
3164         struct lpfc_pvt_pool *pvt_pool;
3165
3166         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3167                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3168                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3169                         phba->sli4_hba.io_xri_cnt);
3170
3171         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3172                 lpfc_create_expedite_pool(phba);
3173
3174         hwq_count = phba->cfg_hdw_queue;
3175         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3176
3177         for (i = 0; i < hwq_count; i++) {
3178                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3179
3180                 if (!multixri_pool) {
3181                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3182                                         "1238 Failed to allocate memory for "
3183                                         "multixri_pool\n");
3184
3185                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3186                                 lpfc_destroy_expedite_pool(phba);
3187
3188                         j = 0;
3189                         while (j < i) {
3190                                 qp = &phba->sli4_hba.hdwq[j];
3191                                 kfree(qp->p_multixri_pool);
3192                                 j++;
3193                         }
3194                         phba->cfg_xri_rebalancing = 0;
3195                         return;
3196                 }
3197
3198                 qp = &phba->sli4_hba.hdwq[i];
3199                 qp->p_multixri_pool = multixri_pool;
3200
3201                 multixri_pool->xri_limit = count_per_hwq;
3202                 multixri_pool->rrb_next_hwqid = i;
3203
3204                 /* Deal with public free xri pool */
3205                 pbl_pool = &multixri_pool->pbl_pool;
3206                 spin_lock_init(&pbl_pool->lock);
3207                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3208                 spin_lock(&pbl_pool->lock);
3209                 INIT_LIST_HEAD(&pbl_pool->list);
3210                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3211                                          &qp->lpfc_io_buf_list_put, list) {
3212                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3213                         qp->put_io_bufs--;
3214                         pbl_pool->count++;
3215                 }
3216                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3217                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3218                                 pbl_pool->count, i);
3219                 spin_unlock(&pbl_pool->lock);
3220                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3221
3222                 /* Deal with private free xri pool */
3223                 pvt_pool = &multixri_pool->pvt_pool;
3224                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3225                 pvt_pool->low_watermark = XRI_BATCH;
3226                 spin_lock_init(&pvt_pool->lock);
3227                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3228                 INIT_LIST_HEAD(&pvt_pool->list);
3229                 pvt_pool->count = 0;
3230                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3231         }
3232 }
3233
3234 /**
3235  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3236  * @phba: pointer to lpfc hba data structure.
3237  *
3238  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3239  **/
3240 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3241 {
3242         u32 i;
3243         u32 hwq_count;
3244         struct lpfc_io_buf *lpfc_ncmd;
3245         struct lpfc_io_buf *lpfc_ncmd_next;
3246         unsigned long iflag;
3247         struct lpfc_sli4_hdw_queue *qp;
3248         struct lpfc_multixri_pool *multixri_pool;
3249         struct lpfc_pbl_pool *pbl_pool;
3250         struct lpfc_pvt_pool *pvt_pool;
3251
3252         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3253                 lpfc_destroy_expedite_pool(phba);
3254
3255         if (!(phba->pport->load_flag & FC_UNLOADING)) {
3256                 lpfc_sli_flush_fcp_rings(phba);
3257
3258                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3259                         lpfc_sli_flush_nvme_rings(phba);
3260         }
3261
3262         hwq_count = phba->cfg_hdw_queue;
3263
3264         for (i = 0; i < hwq_count; i++) {
3265                 qp = &phba->sli4_hba.hdwq[i];
3266                 multixri_pool = qp->p_multixri_pool;
3267                 if (!multixri_pool)
3268                         continue;
3269
3270                 qp->p_multixri_pool = NULL;
3271
3272                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3273
3274                 /* Deal with public free xri pool */
3275                 pbl_pool = &multixri_pool->pbl_pool;
3276                 spin_lock(&pbl_pool->lock);
3277
3278                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3279                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3280                                 pbl_pool->count, i);
3281
3282                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3283                                          &pbl_pool->list, list) {
3284                         list_move_tail(&lpfc_ncmd->list,
3285                                        &qp->lpfc_io_buf_list_put);
3286                         qp->put_io_bufs++;
3287                         pbl_pool->count--;
3288                 }
3289
3290                 INIT_LIST_HEAD(&pbl_pool->list);
3291                 pbl_pool->count = 0;
3292
3293                 spin_unlock(&pbl_pool->lock);
3294
3295                 /* Deal with private free xri pool */
3296                 pvt_pool = &multixri_pool->pvt_pool;
3297                 spin_lock(&pvt_pool->lock);
3298
3299                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3300                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3301                                 pvt_pool->count, i);
3302
3303                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3304                                          &pvt_pool->list, list) {
3305                         list_move_tail(&lpfc_ncmd->list,
3306                                        &qp->lpfc_io_buf_list_put);
3307                         qp->put_io_bufs++;
3308                         pvt_pool->count--;
3309                 }
3310
3311                 INIT_LIST_HEAD(&pvt_pool->list);
3312                 pvt_pool->count = 0;
3313
3314                 spin_unlock(&pvt_pool->lock);
3315                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3316
3317                 kfree(multixri_pool);
3318         }
3319 }
3320
3321 /**
3322  * lpfc_online - Initialize and bring a HBA online
3323  * @phba: pointer to lpfc hba data structure.
3324  *
3325  * This routine initializes the HBA and brings a HBA online. During this
3326  * process, the management interface is blocked to prevent user space access
3327  * to the HBA interfering with the driver initialization.
3328  *
3329  * Return codes
3330  *   0 - successful
3331  *   1 - failed
3332  **/
3333 int
3334 lpfc_online(struct lpfc_hba *phba)
3335 {
3336         struct lpfc_vport *vport;
3337         struct lpfc_vport **vports;
3338         int i, error = 0;
3339         bool vpis_cleared = false;
3340
3341         if (!phba)
3342                 return 0;
3343         vport = phba->pport;
3344
3345         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3346                 return 0;
3347
3348         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3349                         "0458 Bring Adapter online\n");
3350
3351         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3352
3353         if (phba->sli_rev == LPFC_SLI_REV4) {
3354                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3355                         lpfc_unblock_mgmt_io(phba);
3356                         return 1;
3357                 }
3358                 spin_lock_irq(&phba->hbalock);
3359                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3360                         vpis_cleared = true;
3361                 spin_unlock_irq(&phba->hbalock);
3362
3363                 /* Reestablish the local initiator port.
3364                  * The offline process destroyed the previous lport.
3365                  */
3366                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3367                                 !phba->nvmet_support) {
3368                         error = lpfc_nvme_create_localport(phba->pport);
3369                         if (error)
3370                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3371                                         "6132 NVME restore reg failed "
3372                                         "on nvmei error x%x\n", error);
3373                 }
3374         } else {
3375                 lpfc_sli_queue_init(phba);
3376                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3377                         lpfc_unblock_mgmt_io(phba);
3378                         return 1;
3379                 }
3380         }
3381
3382         vports = lpfc_create_vport_work_array(phba);
3383         if (vports != NULL) {
3384                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3385                         struct Scsi_Host *shost;
3386                         shost = lpfc_shost_from_vport(vports[i]);
3387                         spin_lock_irq(shost->host_lock);
3388                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3389                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3390                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3391                         if (phba->sli_rev == LPFC_SLI_REV4) {
3392                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3393                                 if ((vpis_cleared) &&
3394                                     (vports[i]->port_type !=
3395                                         LPFC_PHYSICAL_PORT))
3396                                         vports[i]->vpi = 0;
3397                         }
3398                         spin_unlock_irq(shost->host_lock);
3399                 }
3400         }
3401         lpfc_destroy_vport_work_array(phba, vports);
3402
3403         if (phba->cfg_xri_rebalancing)
3404                 lpfc_create_multixri_pools(phba);
3405
3406         lpfc_unblock_mgmt_io(phba);
3407         return 0;
3408 }
3409
3410 /**
3411  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3412  * @phba: pointer to lpfc hba data structure.
3413  *
3414  * This routine marks a HBA's management interface as not blocked. Once the
3415  * HBA's management interface is marked as not blocked, all the user space
3416  * access to the HBA, whether they are from sysfs interface or libdfc
3417  * interface will be allowed. The HBA is set to block the management interface
3418  * when the driver prepares the HBA interface for online or offline and then
3419  * set to unblock the management interface afterwards.
3420  **/
3421 void
3422 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3423 {
3424         unsigned long iflag;
3425
3426         spin_lock_irqsave(&phba->hbalock, iflag);
3427         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3428         spin_unlock_irqrestore(&phba->hbalock, iflag);
3429 }
3430
3431 /**
3432  * lpfc_offline_prep - Prepare a HBA to be brought offline
3433  * @phba: pointer to lpfc hba data structure.
3434  *
3435  * This routine is invoked to prepare a HBA to be brought offline. It performs
3436  * unregistration login to all the nodes on all vports and flushes the mailbox
3437  * queue to make it ready to be brought offline.
3438  **/
3439 void
3440 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3441 {
3442         struct lpfc_vport *vport = phba->pport;
3443         struct lpfc_nodelist  *ndlp, *next_ndlp;
3444         struct lpfc_vport **vports;
3445         struct Scsi_Host *shost;
3446         int i;
3447
3448         if (vport->fc_flag & FC_OFFLINE_MODE)
3449                 return;
3450
3451         lpfc_block_mgmt_io(phba, mbx_action);
3452
3453         lpfc_linkdown(phba);
3454
3455         /* Issue an unreg_login to all nodes on all vports */
3456         vports = lpfc_create_vport_work_array(phba);
3457         if (vports != NULL) {
3458                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3459                         if (vports[i]->load_flag & FC_UNLOADING)
3460                                 continue;
3461                         shost = lpfc_shost_from_vport(vports[i]);
3462                         spin_lock_irq(shost->host_lock);
3463                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3464                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3465                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3466                         spin_unlock_irq(shost->host_lock);
3467
3468                         shost = lpfc_shost_from_vport(vports[i]);
3469                         list_for_each_entry_safe(ndlp, next_ndlp,
3470                                                  &vports[i]->fc_nodes,
3471                                                  nlp_listp) {
3472                                 if (!NLP_CHK_NODE_ACT(ndlp))
3473                                         continue;
3474                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3475                                         continue;
3476                                 if (ndlp->nlp_type & NLP_FABRIC) {
3477                                         lpfc_disc_state_machine(vports[i], ndlp,
3478                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3479                                         lpfc_disc_state_machine(vports[i], ndlp,
3480                                                 NULL, NLP_EVT_DEVICE_RM);
3481                                 }
3482                                 spin_lock_irq(shost->host_lock);
3483                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3484                                 spin_unlock_irq(shost->host_lock);
3485                                 /*
3486                                  * Whenever an SLI4 port goes offline, free the
3487                                  * RPI. Get a new RPI when the adapter port
3488                                  * comes back online.
3489                                  */
3490                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3491                                         lpfc_printf_vlog(ndlp->vport,
3492                                                          KERN_INFO, LOG_NODE,
3493                                                          "0011 lpfc_offline: "
3494                                                          "ndlp:x%p did %x "
3495                                                          "usgmap:x%x rpi:%x\n",
3496                                                          ndlp, ndlp->nlp_DID,
3497                                                          ndlp->nlp_usg_map,
3498                                                          ndlp->nlp_rpi);
3499
3500                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3501                                 }
3502                                 lpfc_unreg_rpi(vports[i], ndlp);
3503                         }
3504                 }
3505         }
3506         lpfc_destroy_vport_work_array(phba, vports);
3507
3508         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3509
3510         if (phba->wq)
3511                 flush_workqueue(phba->wq);
3512 }
3513
3514 /**
3515  * lpfc_offline - Bring a HBA offline
3516  * @phba: pointer to lpfc hba data structure.
3517  *
3518  * This routine actually brings a HBA offline. It stops all the timers
3519  * associated with the HBA, brings down the SLI layer, and eventually
3520  * marks the HBA as in offline state for the upper layer protocol.
3521  **/
3522 void
3523 lpfc_offline(struct lpfc_hba *phba)
3524 {
3525         struct Scsi_Host  *shost;
3526         struct lpfc_vport **vports;
3527         int i;
3528
3529         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3530                 return;
3531
3532         /* stop port and all timers associated with this hba */
3533         lpfc_stop_port(phba);
3534
3535         /* Tear down the local and target port registrations.  The
3536          * nvme transports need to cleanup.
3537          */
3538         lpfc_nvmet_destroy_targetport(phba);
3539         lpfc_nvme_destroy_localport(phba->pport);
3540
3541         vports = lpfc_create_vport_work_array(phba);
3542         if (vports != NULL)
3543                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3544                         lpfc_stop_vport_timers(vports[i]);
3545         lpfc_destroy_vport_work_array(phba, vports);
3546         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3547                         "0460 Bring Adapter offline\n");
3548         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3549            now.  */
3550         lpfc_sli_hba_down(phba);
3551         spin_lock_irq(&phba->hbalock);
3552         phba->work_ha = 0;
3553         spin_unlock_irq(&phba->hbalock);
3554         vports = lpfc_create_vport_work_array(phba);
3555         if (vports != NULL)
3556                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3557                         shost = lpfc_shost_from_vport(vports[i]);
3558                         spin_lock_irq(shost->host_lock);
3559                         vports[i]->work_port_events = 0;
3560                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3561                         spin_unlock_irq(shost->host_lock);
3562                 }
3563         lpfc_destroy_vport_work_array(phba, vports);
3564
3565         if (phba->cfg_xri_rebalancing)
3566                 lpfc_destroy_multixri_pools(phba);
3567 }
3568
3569 /**
3570  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3571  * @phba: pointer to lpfc hba data structure.
3572  *
3573  * This routine is to free all the SCSI buffers and IOCBs from the driver
3574  * list back to kernel. It is called from lpfc_pci_remove_one to free
3575  * the internal resources before the device is removed from the system.
3576  **/
3577 static void
3578 lpfc_scsi_free(struct lpfc_hba *phba)
3579 {
3580         struct lpfc_io_buf *sb, *sb_next;
3581
3582         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3583                 return;
3584
3585         spin_lock_irq(&phba->hbalock);
3586
3587         /* Release all the lpfc_scsi_bufs maintained by this host. */
3588
3589         spin_lock(&phba->scsi_buf_list_put_lock);
3590         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3591                                  list) {
3592                 list_del(&sb->list);
3593                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3594                               sb->dma_handle);
3595                 kfree(sb);
3596                 phba->total_scsi_bufs--;
3597         }
3598         spin_unlock(&phba->scsi_buf_list_put_lock);
3599
3600         spin_lock(&phba->scsi_buf_list_get_lock);
3601         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3602                                  list) {
3603                 list_del(&sb->list);
3604                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3605                               sb->dma_handle);
3606                 kfree(sb);
3607                 phba->total_scsi_bufs--;
3608         }
3609         spin_unlock(&phba->scsi_buf_list_get_lock);
3610         spin_unlock_irq(&phba->hbalock);
3611 }
3612
3613 /**
3614  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3615  * @phba: pointer to lpfc hba data structure.
3616  *
3617  * This routine is to free all the IO buffers and IOCBs from the driver
3618  * list back to kernel. It is called from lpfc_pci_remove_one to free
3619  * the internal resources before the device is removed from the system.
3620  **/
3621 void
3622 lpfc_io_free(struct lpfc_hba *phba)
3623 {
3624         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3625         struct lpfc_sli4_hdw_queue *qp;
3626         int idx;
3627
3628         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3629                 qp = &phba->sli4_hba.hdwq[idx];
3630                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3631                 spin_lock(&qp->io_buf_list_put_lock);
3632                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3633                                          &qp->lpfc_io_buf_list_put,
3634                                          list) {
3635                         list_del(&lpfc_ncmd->list);
3636                         qp->put_io_bufs--;
3637                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3638                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3639                         kfree(lpfc_ncmd);
3640                         qp->total_io_bufs--;
3641                 }
3642                 spin_unlock(&qp->io_buf_list_put_lock);
3643
3644                 spin_lock(&qp->io_buf_list_get_lock);
3645                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3646                                          &qp->lpfc_io_buf_list_get,
3647                                          list) {
3648                         list_del(&lpfc_ncmd->list);
3649                         qp->get_io_bufs--;
3650                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3651                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3652                         kfree(lpfc_ncmd);
3653                         qp->total_io_bufs--;
3654                 }
3655                 spin_unlock(&qp->io_buf_list_get_lock);
3656         }
3657 }
3658
3659 /**
3660  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3661  * @phba: pointer to lpfc hba data structure.
3662  *
3663  * This routine first calculates the sizes of the current els and allocated
3664  * scsi sgl lists, and then goes through all sgls to updates the physical
3665  * XRIs assigned due to port function reset. During port initialization, the
3666  * current els and allocated scsi sgl lists are 0s.
3667  *
3668  * Return codes
3669  *   0 - successful (for now, it always returns 0)
3670  **/
3671 int
3672 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3673 {
3674         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3675         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3676         LIST_HEAD(els_sgl_list);
3677         int rc;
3678
3679         /*
3680          * update on pci function's els xri-sgl list
3681          */
3682         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3683
3684         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3685                 /* els xri-sgl expanded */
3686                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3687                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3688                                 "3157 ELS xri-sgl count increased from "
3689                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3690                                 els_xri_cnt);
3691                 /* allocate the additional els sgls */
3692                 for (i = 0; i < xri_cnt; i++) {
3693                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3694                                              GFP_KERNEL);
3695                         if (sglq_entry == NULL) {
3696                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3697                                                 "2562 Failure to allocate an "
3698                                                 "ELS sgl entry:%d\n", i);
3699                                 rc = -ENOMEM;
3700                                 goto out_free_mem;
3701                         }
3702                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3703                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3704                                                            &sglq_entry->phys);
3705                         if (sglq_entry->virt == NULL) {
3706                                 kfree(sglq_entry);
3707                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3708                                                 "2563 Failure to allocate an "
3709                                                 "ELS mbuf:%d\n", i);
3710                                 rc = -ENOMEM;
3711                                 goto out_free_mem;
3712                         }
3713                         sglq_entry->sgl = sglq_entry->virt;
3714                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3715                         sglq_entry->state = SGL_FREED;
3716                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3717                 }
3718                 spin_lock_irq(&phba->hbalock);
3719                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3720                 list_splice_init(&els_sgl_list,
3721                                  &phba->sli4_hba.lpfc_els_sgl_list);
3722                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3723                 spin_unlock_irq(&phba->hbalock);
3724         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3725                 /* els xri-sgl shrinked */
3726                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3727                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3728                                 "3158 ELS xri-sgl count decreased from "
3729                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3730                                 els_xri_cnt);
3731                 spin_lock_irq(&phba->hbalock);
3732                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3733                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3734                                  &els_sgl_list);
3735                 /* release extra els sgls from list */
3736                 for (i = 0; i < xri_cnt; i++) {
3737                         list_remove_head(&els_sgl_list,
3738                                          sglq_entry, struct lpfc_sglq, list);
3739                         if (sglq_entry) {
3740                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3741                                                  sglq_entry->phys);
3742                                 kfree(sglq_entry);
3743                         }
3744                 }
3745                 list_splice_init(&els_sgl_list,
3746                                  &phba->sli4_hba.lpfc_els_sgl_list);
3747                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3748                 spin_unlock_irq(&phba->hbalock);
3749         } else
3750                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3751                                 "3163 ELS xri-sgl count unchanged: %d\n",
3752                                 els_xri_cnt);
3753         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3754
3755         /* update xris to els sgls on the list */
3756         sglq_entry = NULL;
3757         sglq_entry_next = NULL;
3758         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3759                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3760                 lxri = lpfc_sli4_next_xritag(phba);
3761                 if (lxri == NO_XRI) {
3762                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3763                                         "2400 Failed to allocate xri for "
3764                                         "ELS sgl\n");
3765                         rc = -ENOMEM;
3766                         goto out_free_mem;
3767                 }
3768                 sglq_entry->sli4_lxritag = lxri;
3769                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3770         }
3771         return 0;
3772
3773 out_free_mem:
3774         lpfc_free_els_sgl_list(phba);
3775         return rc;
3776 }
3777
3778 /**
3779  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3780  * @phba: pointer to lpfc hba data structure.
3781  *
3782  * This routine first calculates the sizes of the current els and allocated
3783  * scsi sgl lists, and then goes through all sgls to updates the physical
3784  * XRIs assigned due to port function reset. During port initialization, the
3785  * current els and allocated scsi sgl lists are 0s.
3786  *
3787  * Return codes
3788  *   0 - successful (for now, it always returns 0)
3789  **/
3790 int
3791 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3792 {
3793         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3794         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3795         uint16_t nvmet_xri_cnt;
3796         LIST_HEAD(nvmet_sgl_list);
3797         int rc;
3798
3799         /*
3800          * update on pci function's nvmet xri-sgl list
3801          */
3802         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3803
3804         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3805         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3806         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3807                 /* els xri-sgl expanded */
3808                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3809                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3810                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3811                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3812                 /* allocate the additional nvmet sgls */
3813                 for (i = 0; i < xri_cnt; i++) {
3814                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3815                                              GFP_KERNEL);
3816                         if (sglq_entry == NULL) {
3817                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3818                                                 "6303 Failure to allocate an "
3819                                                 "NVMET sgl entry:%d\n", i);
3820                                 rc = -ENOMEM;
3821                                 goto out_free_mem;
3822                         }
3823                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3824                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3825                                                            &sglq_entry->phys);
3826                         if (sglq_entry->virt == NULL) {
3827                                 kfree(sglq_entry);
3828                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3829                                                 "6304 Failure to allocate an "
3830                                                 "NVMET buf:%d\n", i);
3831                                 rc = -ENOMEM;
3832                                 goto out_free_mem;
3833                         }
3834                         sglq_entry->sgl = sglq_entry->virt;
3835                         memset(sglq_entry->sgl, 0,
3836                                phba->cfg_sg_dma_buf_size);
3837                         sglq_entry->state = SGL_FREED;
3838                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3839                 }
3840                 spin_lock_irq(&phba->hbalock);
3841                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3842                 list_splice_init(&nvmet_sgl_list,
3843                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3844                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3845                 spin_unlock_irq(&phba->hbalock);
3846         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3847                 /* nvmet xri-sgl shrunk */
3848                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3849                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3850                                 "6305 NVMET xri-sgl count decreased from "
3851                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3852                                 nvmet_xri_cnt);
3853                 spin_lock_irq(&phba->hbalock);
3854                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3855                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3856                                  &nvmet_sgl_list);
3857                 /* release extra nvmet sgls from list */
3858                 for (i = 0; i < xri_cnt; i++) {
3859                         list_remove_head(&nvmet_sgl_list,
3860                                          sglq_entry, struct lpfc_sglq, list);
3861                         if (sglq_entry) {
3862                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3863                                                     sglq_entry->phys);
3864                                 kfree(sglq_entry);
3865                         }
3866                 }
3867                 list_splice_init(&nvmet_sgl_list,
3868                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3869                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3870                 spin_unlock_irq(&phba->hbalock);
3871         } else
3872                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3873                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3874                                 nvmet_xri_cnt);
3875         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3876
3877         /* update xris to nvmet sgls on the list */
3878         sglq_entry = NULL;
3879         sglq_entry_next = NULL;
3880         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3881                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3882                 lxri = lpfc_sli4_next_xritag(phba);
3883                 if (lxri == NO_XRI) {
3884                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3885                                         "6307 Failed to allocate xri for "
3886                                         "NVMET sgl\n");
3887                         rc = -ENOMEM;
3888                         goto out_free_mem;
3889                 }
3890                 sglq_entry->sli4_lxritag = lxri;
3891                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3892         }
3893         return 0;
3894
3895 out_free_mem:
3896         lpfc_free_nvmet_sgl_list(phba);
3897         return rc;
3898 }
3899
3900 int
3901 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3902 {
3903         LIST_HEAD(blist);
3904         struct lpfc_sli4_hdw_queue *qp;
3905         struct lpfc_io_buf *lpfc_cmd;
3906         struct lpfc_io_buf *iobufp, *prev_iobufp;
3907         int idx, cnt, xri, inserted;
3908
3909         cnt = 0;
3910         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3911                 qp = &phba->sli4_hba.hdwq[idx];
3912                 spin_lock_irq(&qp->io_buf_list_get_lock);
3913                 spin_lock(&qp->io_buf_list_put_lock);
3914
3915                 /* Take everything off the get and put lists */
3916                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3917                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3918                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3919                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3920                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3921                 qp->get_io_bufs = 0;
3922                 qp->put_io_bufs = 0;
3923                 qp->total_io_bufs = 0;
3924                 spin_unlock(&qp->io_buf_list_put_lock);
3925                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3926         }
3927
3928         /*
3929          * Take IO buffers off blist and put on cbuf sorted by XRI.
3930          * This is because POST_SGL takes a sequential range of XRIs
3931          * to post to the firmware.
3932          */
3933         for (idx = 0; idx < cnt; idx++) {
3934                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3935                 if (!lpfc_cmd)
3936                         return cnt;
3937                 if (idx == 0) {
3938                         list_add_tail(&lpfc_cmd->list, cbuf);
3939                         continue;
3940                 }
3941                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3942                 inserted = 0;
3943                 prev_iobufp = NULL;
3944                 list_for_each_entry(iobufp, cbuf, list) {
3945                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3946                                 if (prev_iobufp)
3947                                         list_add(&lpfc_cmd->list,
3948                                                  &prev_iobufp->list);
3949                                 else
3950                                         list_add(&lpfc_cmd->list, cbuf);
3951                                 inserted = 1;
3952                                 break;
3953                         }
3954                         prev_iobufp = iobufp;
3955                 }
3956                 if (!inserted)
3957                         list_add_tail(&lpfc_cmd->list, cbuf);
3958         }
3959         return cnt;
3960 }
3961
3962 int
3963 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3964 {
3965         struct lpfc_sli4_hdw_queue *qp;
3966         struct lpfc_io_buf *lpfc_cmd;
3967         int idx, cnt;
3968
3969         qp = phba->sli4_hba.hdwq;
3970         cnt = 0;
3971         while (!list_empty(cbuf)) {
3972                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3973                         list_remove_head(cbuf, lpfc_cmd,
3974                                          struct lpfc_io_buf, list);
3975                         if (!lpfc_cmd)
3976                                 return cnt;
3977                         cnt++;
3978                         qp = &phba->sli4_hba.hdwq[idx];
3979                         lpfc_cmd->hdwq_no = idx;
3980                         lpfc_cmd->hdwq = qp;
3981                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3982                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3983                         spin_lock(&qp->io_buf_list_put_lock);
3984                         list_add_tail(&lpfc_cmd->list,
3985                                       &qp->lpfc_io_buf_list_put);
3986                         qp->put_io_bufs++;
3987                         qp->total_io_bufs++;
3988                         spin_unlock(&qp->io_buf_list_put_lock);
3989                 }
3990         }
3991         return cnt;
3992 }
3993
3994 /**
3995  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3996  * @phba: pointer to lpfc hba data structure.
3997  *
3998  * This routine first calculates the sizes of the current els and allocated
3999  * scsi sgl lists, and then goes through all sgls to updates the physical
4000  * XRIs assigned due to port function reset. During port initialization, the
4001  * current els and allocated scsi sgl lists are 0s.
4002  *
4003  * Return codes
4004  *   0 - successful (for now, it always returns 0)
4005  **/
4006 int
4007 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4008 {
4009         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4010         uint16_t i, lxri, els_xri_cnt;
4011         uint16_t io_xri_cnt, io_xri_max;
4012         LIST_HEAD(io_sgl_list);
4013         int rc, cnt;
4014
4015         /*
4016          * update on pci function's allocated nvme xri-sgl list
4017          */
4018
4019         /* maximum number of xris available for nvme buffers */
4020         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4021         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4022         phba->sli4_hba.io_xri_max = io_xri_max;
4023
4024         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4025                         "6074 Current allocated XRI sgl count:%d, "
4026                         "maximum XRI count:%d\n",
4027                         phba->sli4_hba.io_xri_cnt,
4028                         phba->sli4_hba.io_xri_max);
4029
4030         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4031
4032         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4033                 /* max nvme xri shrunk below the allocated nvme buffers */
4034                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4035                                         phba->sli4_hba.io_xri_max;
4036                 /* release the extra allocated nvme buffers */
4037                 for (i = 0; i < io_xri_cnt; i++) {
4038                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4039                                          struct lpfc_io_buf, list);
4040                         if (lpfc_ncmd) {
4041                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4042                                               lpfc_ncmd->data,
4043                                               lpfc_ncmd->dma_handle);
4044                                 kfree(lpfc_ncmd);
4045                         }
4046                 }
4047                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4048         }
4049
4050         /* update xris associated to remaining allocated nvme buffers */
4051         lpfc_ncmd = NULL;
4052         lpfc_ncmd_next = NULL;
4053         phba->sli4_hba.io_xri_cnt = cnt;
4054         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4055                                  &io_sgl_list, list) {
4056                 lxri = lpfc_sli4_next_xritag(phba);
4057                 if (lxri == NO_XRI) {
4058                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4059                                         "6075 Failed to allocate xri for "
4060                                         "nvme buffer\n");
4061                         rc = -ENOMEM;
4062                         goto out_free_mem;
4063                 }
4064                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4065                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4066         }
4067         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4068         return 0;
4069
4070 out_free_mem:
4071         lpfc_io_free(phba);
4072         return rc;
4073 }
4074
4075 /**
4076  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4077  * @vport: The virtual port for which this call being executed.
4078  * @num_to_allocate: The requested number of buffers to allocate.
4079  *
4080  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4081  * the nvme buffer contains all the necessary information needed to initiate
4082  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4083  * them on a list, it post them to the port by using SGL block post.
4084  *
4085  * Return codes:
4086  *   int - number of IO buffers that were allocated and posted.
4087  *   0 = failure, less than num_to_alloc is a partial failure.
4088  **/
4089 int
4090 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4091 {
4092         struct lpfc_io_buf *lpfc_ncmd;
4093         struct lpfc_iocbq *pwqeq;
4094         uint16_t iotag, lxri = 0;
4095         int bcnt, num_posted;
4096         LIST_HEAD(prep_nblist);
4097         LIST_HEAD(post_nblist);
4098         LIST_HEAD(nvme_nblist);
4099
4100         /* Sanity check to ensure our sizing is right for both SCSI and NVME */
4101         if (sizeof(struct lpfc_io_buf) > LPFC_COMMON_IO_BUF_SZ) {
4102                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4103                                 "6426 Common buffer size %zd exceeds %d\n",
4104                                 sizeof(struct lpfc_io_buf),
4105                                 LPFC_COMMON_IO_BUF_SZ);
4106                 return 0;
4107         }
4108
4109         phba->sli4_hba.io_xri_cnt = 0;
4110         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4111                 lpfc_ncmd = kzalloc(LPFC_COMMON_IO_BUF_SZ, GFP_KERNEL);
4112                 if (!lpfc_ncmd)
4113                         break;
4114                 /*
4115                  * Get memory from the pci pool to map the virt space to
4116                  * pci bus space for an I/O. The DMA buffer includes the
4117                  * number of SGE's necessary to support the sg_tablesize.
4118                  */
4119                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4120                                                   GFP_KERNEL,
4121                                                   &lpfc_ncmd->dma_handle);
4122                 if (!lpfc_ncmd->data) {
4123                         kfree(lpfc_ncmd);
4124                         break;
4125                 }
4126
4127                 /*
4128                  * 4K Page alignment is CRITICAL to BlockGuard, double check
4129                  * to be sure.
4130                  */
4131                 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4132                     (((unsigned long)(lpfc_ncmd->data) &
4133                     (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4134                         lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4135                                         "3369 Memory alignment err: addr=%lx\n",
4136                                         (unsigned long)lpfc_ncmd->data);
4137                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4138                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4139                         kfree(lpfc_ncmd);
4140                         break;
4141                 }
4142
4143                 lxri = lpfc_sli4_next_xritag(phba);
4144                 if (lxri == NO_XRI) {
4145                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4146                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4147                         kfree(lpfc_ncmd);
4148                         break;
4149                 }
4150                 pwqeq = &lpfc_ncmd->cur_iocbq;
4151
4152                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4153                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4154                 if (iotag == 0) {
4155                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4156                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4157                         kfree(lpfc_ncmd);
4158                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4159                                         "6121 Failed to allocate IOTAG for"
4160                                         " XRI:0x%x\n", lxri);
4161                         lpfc_sli4_free_xri(phba, lxri);
4162                         break;
4163                 }
4164                 pwqeq->sli4_lxritag = lxri;
4165                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4166                 pwqeq->context1 = lpfc_ncmd;
4167
4168                 /* Initialize local short-hand pointers. */
4169                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4170                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4171                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4172                 spin_lock_init(&lpfc_ncmd->buf_lock);
4173
4174                 /* add the nvme buffer to a post list */
4175                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4176                 phba->sli4_hba.io_xri_cnt++;
4177         }
4178         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4179                         "6114 Allocate %d out of %d requested new NVME "
4180                         "buffers\n", bcnt, num_to_alloc);
4181
4182         /* post the list of nvme buffer sgls to port if available */
4183         if (!list_empty(&post_nblist))
4184                 num_posted = lpfc_sli4_post_io_sgl_list(
4185                                 phba, &post_nblist, bcnt);
4186         else
4187                 num_posted = 0;
4188
4189         return num_posted;
4190 }
4191
4192 static uint64_t
4193 lpfc_get_wwpn(struct lpfc_hba *phba)
4194 {
4195         uint64_t wwn;
4196         int rc;
4197         LPFC_MBOXQ_t *mboxq;
4198         MAILBOX_t *mb;
4199
4200         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4201                                                 GFP_KERNEL);
4202         if (!mboxq)
4203                 return (uint64_t)-1;
4204
4205         /* First get WWN of HBA instance */
4206         lpfc_read_nv(phba, mboxq);
4207         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4208         if (rc != MBX_SUCCESS) {
4209                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4210                                 "6019 Mailbox failed , mbxCmd x%x "
4211                                 "READ_NV, mbxStatus x%x\n",
4212                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4213                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4214                 mempool_free(mboxq, phba->mbox_mem_pool);
4215                 return (uint64_t) -1;
4216         }
4217         mb = &mboxq->u.mb;
4218         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4219         /* wwn is WWPN of HBA instance */
4220         mempool_free(mboxq, phba->mbox_mem_pool);
4221         if (phba->sli_rev == LPFC_SLI_REV4)
4222                 return be64_to_cpu(wwn);
4223         else
4224                 return rol64(wwn, 32);
4225 }
4226
4227 /**
4228  * lpfc_create_port - Create an FC port
4229  * @phba: pointer to lpfc hba data structure.
4230  * @instance: a unique integer ID to this FC port.
4231  * @dev: pointer to the device data structure.
4232  *
4233  * This routine creates a FC port for the upper layer protocol. The FC port
4234  * can be created on top of either a physical port or a virtual port provided
4235  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4236  * and associates the FC port created before adding the shost into the SCSI
4237  * layer.
4238  *
4239  * Return codes
4240  *   @vport - pointer to the virtual N_Port data structure.
4241  *   NULL - port create failed.
4242  **/
4243 struct lpfc_vport *
4244 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4245 {
4246         struct lpfc_vport *vport;
4247         struct Scsi_Host  *shost = NULL;
4248         int error = 0;
4249         int i;
4250         uint64_t wwn;
4251         bool use_no_reset_hba = false;
4252         int rc;
4253
4254         if (lpfc_no_hba_reset_cnt) {
4255                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4256                     dev == &phba->pcidev->dev) {
4257                         /* Reset the port first */
4258                         lpfc_sli_brdrestart(phba);
4259                         rc = lpfc_sli_chipset_init(phba);
4260                         if (rc)
4261                                 return NULL;
4262                 }
4263                 wwn = lpfc_get_wwpn(phba);
4264         }
4265
4266         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4267                 if (wwn == lpfc_no_hba_reset[i]) {
4268                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4269                                         "6020 Setting use_no_reset port=%llx\n",
4270                                         wwn);
4271                         use_no_reset_hba = true;
4272                         break;
4273                 }
4274         }
4275
4276         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4277                 if (dev != &phba->pcidev->dev) {
4278                         shost = scsi_host_alloc(&lpfc_vport_template,
4279                                                 sizeof(struct lpfc_vport));
4280                 } else {
4281                         if (!use_no_reset_hba)
4282                                 shost = scsi_host_alloc(&lpfc_template,
4283                                                 sizeof(struct lpfc_vport));
4284                         else
4285                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4286                                                 sizeof(struct lpfc_vport));
4287                 }
4288         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4289                 shost = scsi_host_alloc(&lpfc_template_nvme,
4290                                         sizeof(struct lpfc_vport));
4291         }
4292         if (!shost)
4293                 goto out;
4294
4295         vport = (struct lpfc_vport *) shost->hostdata;
4296         vport->phba = phba;
4297         vport->load_flag |= FC_LOADING;
4298         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4299         vport->fc_rscn_flush = 0;
4300         lpfc_get_vport_cfgparam(vport);
4301
4302         /* Adjust value in vport */
4303         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4304
4305         shost->unique_id = instance;
4306         shost->max_id = LPFC_MAX_TARGET;
4307         shost->max_lun = vport->cfg_max_luns;
4308         shost->this_id = -1;
4309         shost->max_cmd_len = 16;
4310
4311         if (phba->sli_rev == LPFC_SLI_REV4) {
4312                 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ)
4313                         shost->nr_hw_queues = phba->cfg_hdw_queue;
4314                 else
4315                         shost->nr_hw_queues = phba->sli4_hba.num_present_cpu;
4316
4317                 shost->dma_boundary =
4318                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4319                 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4320         } else
4321                 /* SLI-3 has a limited number of hardware queues (3),
4322                  * thus there is only one for FCP processing.
4323                  */
4324                 shost->nr_hw_queues = 1;
4325
4326         /*
4327          * Set initial can_queue value since 0 is no longer supported and
4328          * scsi_add_host will fail. This will be adjusted later based on the
4329          * max xri value determined in hba setup.
4330          */
4331         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4332         if (dev != &phba->pcidev->dev) {
4333                 shost->transportt = lpfc_vport_transport_template;
4334                 vport->port_type = LPFC_NPIV_PORT;
4335         } else {
4336                 shost->transportt = lpfc_transport_template;
4337                 vport->port_type = LPFC_PHYSICAL_PORT;
4338         }
4339
4340         /* Initialize all internally managed lists. */
4341         INIT_LIST_HEAD(&vport->fc_nodes);
4342         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4343         spin_lock_init(&vport->work_port_lock);
4344
4345         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4346
4347         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4348
4349         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4350
4351         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4352                 lpfc_setup_bg(phba, shost);
4353
4354         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4355         if (error)
4356                 goto out_put_shost;
4357
4358         spin_lock_irq(&phba->port_list_lock);
4359         list_add_tail(&vport->listentry, &phba->port_list);
4360         spin_unlock_irq(&phba->port_list_lock);
4361         return vport;
4362
4363 out_put_shost:
4364         scsi_host_put(shost);
4365 out:
4366         return NULL;
4367 }
4368
4369 /**
4370  * destroy_port -  destroy an FC port
4371  * @vport: pointer to an lpfc virtual N_Port data structure.
4372  *
4373  * This routine destroys a FC port from the upper layer protocol. All the
4374  * resources associated with the port are released.
4375  **/
4376 void
4377 destroy_port(struct lpfc_vport *vport)
4378 {
4379         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4380         struct lpfc_hba  *phba = vport->phba;
4381
4382         lpfc_debugfs_terminate(vport);
4383         fc_remove_host(shost);
4384         scsi_remove_host(shost);
4385
4386         spin_lock_irq(&phba->port_list_lock);
4387         list_del_init(&vport->listentry);
4388         spin_unlock_irq(&phba->port_list_lock);
4389
4390         lpfc_cleanup(vport);
4391         return;
4392 }
4393
4394 /**
4395  * lpfc_get_instance - Get a unique integer ID
4396  *
4397  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4398  * uses the kernel idr facility to perform the task.
4399  *
4400  * Return codes:
4401  *   instance - a unique integer ID allocated as the new instance.
4402  *   -1 - lpfc get instance failed.
4403  **/
4404 int
4405 lpfc_get_instance(void)
4406 {
4407         int ret;
4408
4409         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4410         return ret < 0 ? -1 : ret;
4411 }
4412
4413 /**
4414  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4415  * @shost: pointer to SCSI host data structure.
4416  * @time: elapsed time of the scan in jiffies.
4417  *
4418  * This routine is called by the SCSI layer with a SCSI host to determine
4419  * whether the scan host is finished.
4420  *
4421  * Note: there is no scan_start function as adapter initialization will have
4422  * asynchronously kicked off the link initialization.
4423  *
4424  * Return codes
4425  *   0 - SCSI host scan is not over yet.
4426  *   1 - SCSI host scan is over.
4427  **/
4428 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4429 {
4430         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4431         struct lpfc_hba   *phba = vport->phba;
4432         int stat = 0;
4433
4434         spin_lock_irq(shost->host_lock);
4435
4436         if (vport->load_flag & FC_UNLOADING) {
4437                 stat = 1;
4438                 goto finished;
4439         }
4440         if (time >= msecs_to_jiffies(30 * 1000)) {
4441                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4442                                 "0461 Scanning longer than 30 "
4443                                 "seconds.  Continuing initialization\n");
4444                 stat = 1;
4445                 goto finished;
4446         }
4447         if (time >= msecs_to_jiffies(15 * 1000) &&
4448             phba->link_state <= LPFC_LINK_DOWN) {
4449                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4450                                 "0465 Link down longer than 15 "
4451                                 "seconds.  Continuing initialization\n");
4452                 stat = 1;
4453                 goto finished;
4454         }
4455
4456         if (vport->port_state != LPFC_VPORT_READY)
4457                 goto finished;
4458         if (vport->num_disc_nodes || vport->fc_prli_sent)
4459                 goto finished;
4460         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4461                 goto finished;
4462         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4463                 goto finished;
4464
4465         stat = 1;
4466
4467 finished:
4468         spin_unlock_irq(shost->host_lock);
4469         return stat;
4470 }
4471
4472 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4473 {
4474         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4475         struct lpfc_hba   *phba = vport->phba;
4476
4477         fc_host_supported_speeds(shost) = 0;
4478         if (phba->lmt & LMT_128Gb)
4479                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4480         if (phba->lmt & LMT_64Gb)
4481                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4482         if (phba->lmt & LMT_32Gb)
4483                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4484         if (phba->lmt & LMT_16Gb)
4485                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4486         if (phba->lmt & LMT_10Gb)
4487                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4488         if (phba->lmt & LMT_8Gb)
4489                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4490         if (phba->lmt & LMT_4Gb)
4491                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4492         if (phba->lmt & LMT_2Gb)
4493                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4494         if (phba->lmt & LMT_1Gb)
4495                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4496 }
4497
4498 /**
4499  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4500  * @shost: pointer to SCSI host data structure.
4501  *
4502  * This routine initializes a given SCSI host attributes on a FC port. The
4503  * SCSI host can be either on top of a physical port or a virtual port.
4504  **/
4505 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4506 {
4507         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4508         struct lpfc_hba   *phba = vport->phba;
4509         /*
4510          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4511          */
4512
4513         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4514         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4515         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4516
4517         memset(fc_host_supported_fc4s(shost), 0,
4518                sizeof(fc_host_supported_fc4s(shost)));
4519         fc_host_supported_fc4s(shost)[2] = 1;
4520         fc_host_supported_fc4s(shost)[7] = 1;
4521
4522         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4523                                  sizeof fc_host_symbolic_name(shost));
4524
4525         lpfc_host_supported_speeds_set(shost);
4526
4527         fc_host_maxframe_size(shost) =
4528                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4529                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4530
4531         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4532
4533         /* This value is also unchanging */
4534         memset(fc_host_active_fc4s(shost), 0,
4535                sizeof(fc_host_active_fc4s(shost)));
4536         fc_host_active_fc4s(shost)[2] = 1;
4537         fc_host_active_fc4s(shost)[7] = 1;
4538
4539         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4540         spin_lock_irq(shost->host_lock);
4541         vport->load_flag &= ~FC_LOADING;
4542         spin_unlock_irq(shost->host_lock);
4543 }
4544
4545 /**
4546  * lpfc_stop_port_s3 - Stop SLI3 device port
4547  * @phba: pointer to lpfc hba data structure.
4548  *
4549  * This routine is invoked to stop an SLI3 device port, it stops the device
4550  * from generating interrupts and stops the device driver's timers for the
4551  * device.
4552  **/
4553 static void
4554 lpfc_stop_port_s3(struct lpfc_hba *phba)
4555 {
4556         /* Clear all interrupt enable conditions */
4557         writel(0, phba->HCregaddr);
4558         readl(phba->HCregaddr); /* flush */
4559         /* Clear all pending interrupts */
4560         writel(0xffffffff, phba->HAregaddr);
4561         readl(phba->HAregaddr); /* flush */
4562
4563         /* Reset some HBA SLI setup states */
4564         lpfc_stop_hba_timers(phba);
4565         phba->pport->work_port_events = 0;
4566 }
4567
4568 /**
4569  * lpfc_stop_port_s4 - Stop SLI4 device port
4570  * @phba: pointer to lpfc hba data structure.
4571  *
4572  * This routine is invoked to stop an SLI4 device port, it stops the device
4573  * from generating interrupts and stops the device driver's timers for the
4574  * device.
4575  **/
4576 static void
4577 lpfc_stop_port_s4(struct lpfc_hba *phba)
4578 {
4579         /* Reset some HBA SLI4 setup states */
4580         lpfc_stop_hba_timers(phba);
4581         if (phba->pport)
4582                 phba->pport->work_port_events = 0;
4583         phba->sli4_hba.intr_enable = 0;
4584 }
4585
4586 /**
4587  * lpfc_stop_port - Wrapper function for stopping hba port
4588  * @phba: Pointer to HBA context object.
4589  *
4590  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4591  * the API jump table function pointer from the lpfc_hba struct.
4592  **/
4593 void
4594 lpfc_stop_port(struct lpfc_hba *phba)
4595 {
4596         phba->lpfc_stop_port(phba);
4597
4598         if (phba->wq)
4599                 flush_workqueue(phba->wq);
4600 }
4601
4602 /**
4603  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4604  * @phba: Pointer to hba for which this call is being executed.
4605  *
4606  * This routine starts the timer waiting for the FCF rediscovery to complete.
4607  **/
4608 void
4609 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4610 {
4611         unsigned long fcf_redisc_wait_tmo =
4612                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4613         /* Start fcf rediscovery wait period timer */
4614         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4615         spin_lock_irq(&phba->hbalock);
4616         /* Allow action to new fcf asynchronous event */
4617         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4618         /* Mark the FCF rediscovery pending state */
4619         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4620         spin_unlock_irq(&phba->hbalock);
4621 }
4622
4623 /**
4624  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4625  * @ptr: Map to lpfc_hba data structure pointer.
4626  *
4627  * This routine is invoked when waiting for FCF table rediscover has been
4628  * timed out. If new FCF record(s) has (have) been discovered during the
4629  * wait period, a new FCF event shall be added to the FCOE async event
4630  * list, and then worker thread shall be waked up for processing from the
4631  * worker thread context.
4632  **/
4633 static void
4634 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4635 {
4636         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4637
4638         /* Don't send FCF rediscovery event if timer cancelled */
4639         spin_lock_irq(&phba->hbalock);
4640         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4641                 spin_unlock_irq(&phba->hbalock);
4642                 return;
4643         }
4644         /* Clear FCF rediscovery timer pending flag */
4645         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4646         /* FCF rediscovery event to worker thread */
4647         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4648         spin_unlock_irq(&phba->hbalock);
4649         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4650                         "2776 FCF rediscover quiescent timer expired\n");
4651         /* wake up worker thread */
4652         lpfc_worker_wake_up(phba);
4653 }
4654
4655 /**
4656  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4657  * @phba: pointer to lpfc hba data structure.
4658  * @acqe_link: pointer to the async link completion queue entry.
4659  *
4660  * This routine is to parse the SLI4 link-attention link fault code.
4661  **/
4662 static void
4663 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4664                            struct lpfc_acqe_link *acqe_link)
4665 {
4666         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4667         case LPFC_ASYNC_LINK_FAULT_NONE:
4668         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4669         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4670         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4671                 break;
4672         default:
4673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4674                                 "0398 Unknown link fault code: x%x\n",
4675                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4676                 break;
4677         }
4678 }
4679
4680 /**
4681  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4682  * @phba: pointer to lpfc hba data structure.
4683  * @acqe_link: pointer to the async link completion queue entry.
4684  *
4685  * This routine is to parse the SLI4 link attention type and translate it
4686  * into the base driver's link attention type coding.
4687  *
4688  * Return: Link attention type in terms of base driver's coding.
4689  **/
4690 static uint8_t
4691 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4692                           struct lpfc_acqe_link *acqe_link)
4693 {
4694         uint8_t att_type;
4695
4696         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4697         case LPFC_ASYNC_LINK_STATUS_DOWN:
4698         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4699                 att_type = LPFC_ATT_LINK_DOWN;
4700                 break;
4701         case LPFC_ASYNC_LINK_STATUS_UP:
4702                 /* Ignore physical link up events - wait for logical link up */
4703                 att_type = LPFC_ATT_RESERVED;
4704                 break;
4705         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4706                 att_type = LPFC_ATT_LINK_UP;
4707                 break;
4708         default:
4709                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4710                                 "0399 Invalid link attention type: x%x\n",
4711                                 bf_get(lpfc_acqe_link_status, acqe_link));
4712                 att_type = LPFC_ATT_RESERVED;
4713                 break;
4714         }
4715         return att_type;
4716 }
4717
4718 /**
4719  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4720  * @phba: pointer to lpfc hba data structure.
4721  *
4722  * This routine is to get an SLI3 FC port's link speed in Mbps.
4723  *
4724  * Return: link speed in terms of Mbps.
4725  **/
4726 uint32_t
4727 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4728 {
4729         uint32_t link_speed;
4730
4731         if (!lpfc_is_link_up(phba))
4732                 return 0;
4733
4734         if (phba->sli_rev <= LPFC_SLI_REV3) {
4735                 switch (phba->fc_linkspeed) {
4736                 case LPFC_LINK_SPEED_1GHZ:
4737                         link_speed = 1000;
4738                         break;
4739                 case LPFC_LINK_SPEED_2GHZ:
4740                         link_speed = 2000;
4741                         break;
4742                 case LPFC_LINK_SPEED_4GHZ:
4743                         link_speed = 4000;
4744                         break;
4745                 case LPFC_LINK_SPEED_8GHZ:
4746                         link_speed = 8000;
4747                         break;
4748                 case LPFC_LINK_SPEED_10GHZ:
4749                         link_speed = 10000;
4750                         break;
4751                 case LPFC_LINK_SPEED_16GHZ:
4752                         link_speed = 16000;
4753                         break;
4754                 default:
4755                         link_speed = 0;
4756                 }
4757         } else {
4758                 if (phba->sli4_hba.link_state.logical_speed)
4759                         link_speed =
4760                               phba->sli4_hba.link_state.logical_speed;
4761                 else
4762                         link_speed = phba->sli4_hba.link_state.speed;
4763         }
4764         return link_speed;
4765 }
4766
4767 /**
4768  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4769  * @phba: pointer to lpfc hba data structure.
4770  * @evt_code: asynchronous event code.
4771  * @speed_code: asynchronous event link speed code.
4772  *
4773  * This routine is to parse the giving SLI4 async event link speed code into
4774  * value of Mbps for the link speed.
4775  *
4776  * Return: link speed in terms of Mbps.
4777  **/
4778 static uint32_t
4779 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4780                            uint8_t speed_code)
4781 {
4782         uint32_t port_speed;
4783
4784         switch (evt_code) {
4785         case LPFC_TRAILER_CODE_LINK:
4786                 switch (speed_code) {
4787                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4788                         port_speed = 0;
4789                         break;
4790                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4791                         port_speed = 10;
4792                         break;
4793                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4794                         port_speed = 100;
4795                         break;
4796                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4797                         port_speed = 1000;
4798                         break;
4799                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4800                         port_speed = 10000;
4801                         break;
4802                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4803                         port_speed = 20000;
4804                         break;
4805                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4806                         port_speed = 25000;
4807                         break;
4808                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4809                         port_speed = 40000;
4810                         break;
4811                 default:
4812                         port_speed = 0;
4813                 }
4814                 break;
4815         case LPFC_TRAILER_CODE_FC:
4816                 switch (speed_code) {
4817                 case LPFC_FC_LA_SPEED_UNKNOWN:
4818                         port_speed = 0;
4819                         break;
4820                 case LPFC_FC_LA_SPEED_1G:
4821                         port_speed = 1000;
4822                         break;
4823                 case LPFC_FC_LA_SPEED_2G:
4824                         port_speed = 2000;
4825                         break;
4826                 case LPFC_FC_LA_SPEED_4G:
4827                         port_speed = 4000;
4828                         break;
4829                 case LPFC_FC_LA_SPEED_8G:
4830                         port_speed = 8000;
4831                         break;
4832                 case LPFC_FC_LA_SPEED_10G:
4833                         port_speed = 10000;
4834                         break;
4835                 case LPFC_FC_LA_SPEED_16G:
4836                         port_speed = 16000;
4837                         break;
4838                 case LPFC_FC_LA_SPEED_32G:
4839                         port_speed = 32000;
4840                         break;
4841                 case LPFC_FC_LA_SPEED_64G:
4842                         port_speed = 64000;
4843                         break;
4844                 case LPFC_FC_LA_SPEED_128G:
4845                         port_speed = 128000;
4846                         break;
4847                 default:
4848                         port_speed = 0;
4849                 }
4850                 break;
4851         default:
4852                 port_speed = 0;
4853         }
4854         return port_speed;
4855 }
4856
4857 /**
4858  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4859  * @phba: pointer to lpfc hba data structure.
4860  * @acqe_link: pointer to the async link completion queue entry.
4861  *
4862  * This routine is to handle the SLI4 asynchronous FCoE link event.
4863  **/
4864 static void
4865 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4866                          struct lpfc_acqe_link *acqe_link)
4867 {
4868         struct lpfc_dmabuf *mp;
4869         LPFC_MBOXQ_t *pmb;
4870         MAILBOX_t *mb;
4871         struct lpfc_mbx_read_top *la;
4872         uint8_t att_type;
4873         int rc;
4874
4875         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4876         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4877                 return;
4878         phba->fcoe_eventtag = acqe_link->event_tag;
4879         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4880         if (!pmb) {
4881                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4882                                 "0395 The mboxq allocation failed\n");
4883                 return;
4884         }
4885         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4886         if (!mp) {
4887                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4888                                 "0396 The lpfc_dmabuf allocation failed\n");
4889                 goto out_free_pmb;
4890         }
4891         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4892         if (!mp->virt) {
4893                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4894                                 "0397 The mbuf allocation failed\n");
4895                 goto out_free_dmabuf;
4896         }
4897
4898         /* Cleanup any outstanding ELS commands */
4899         lpfc_els_flush_all_cmd(phba);
4900
4901         /* Block ELS IOCBs until we have done process link event */
4902         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4903
4904         /* Update link event statistics */
4905         phba->sli.slistat.link_event++;
4906
4907         /* Create lpfc_handle_latt mailbox command from link ACQE */
4908         lpfc_read_topology(phba, pmb, mp);
4909         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4910         pmb->vport = phba->pport;
4911
4912         /* Keep the link status for extra SLI4 state machine reference */
4913         phba->sli4_hba.link_state.speed =
4914                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4915                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4916         phba->sli4_hba.link_state.duplex =
4917                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4918         phba->sli4_hba.link_state.status =
4919                                 bf_get(lpfc_acqe_link_status, acqe_link);
4920         phba->sli4_hba.link_state.type =
4921                                 bf_get(lpfc_acqe_link_type, acqe_link);
4922         phba->sli4_hba.link_state.number =
4923                                 bf_get(lpfc_acqe_link_number, acqe_link);
4924         phba->sli4_hba.link_state.fault =
4925                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4926         phba->sli4_hba.link_state.logical_speed =
4927                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4928
4929         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4930                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4931                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4932                         "Logical speed:%dMbps Fault:%d\n",
4933                         phba->sli4_hba.link_state.speed,
4934                         phba->sli4_hba.link_state.topology,
4935                         phba->sli4_hba.link_state.status,
4936                         phba->sli4_hba.link_state.type,
4937                         phba->sli4_hba.link_state.number,
4938                         phba->sli4_hba.link_state.logical_speed,
4939                         phba->sli4_hba.link_state.fault);
4940         /*
4941          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4942          * topology info. Note: Optional for non FC-AL ports.
4943          */
4944         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4945                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4946                 if (rc == MBX_NOT_FINISHED)
4947                         goto out_free_dmabuf;
4948                 return;
4949         }
4950         /*
4951          * For FCoE Mode: fill in all the topology information we need and call
4952          * the READ_TOPOLOGY completion routine to continue without actually
4953          * sending the READ_TOPOLOGY mailbox command to the port.
4954          */
4955         /* Initialize completion status */
4956         mb = &pmb->u.mb;
4957         mb->mbxStatus = MBX_SUCCESS;
4958
4959         /* Parse port fault information field */
4960         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4961
4962         /* Parse and translate link attention fields */
4963         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4964         la->eventTag = acqe_link->event_tag;
4965         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4966         bf_set(lpfc_mbx_read_top_link_spd, la,
4967                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4968
4969         /* Fake the the following irrelvant fields */
4970         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4971         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4972         bf_set(lpfc_mbx_read_top_il, la, 0);
4973         bf_set(lpfc_mbx_read_top_pb, la, 0);
4974         bf_set(lpfc_mbx_read_top_fa, la, 0);
4975         bf_set(lpfc_mbx_read_top_mm, la, 0);
4976
4977         /* Invoke the lpfc_handle_latt mailbox command callback function */
4978         lpfc_mbx_cmpl_read_topology(phba, pmb);
4979
4980         return;
4981
4982 out_free_dmabuf:
4983         kfree(mp);
4984 out_free_pmb:
4985         mempool_free(pmb, phba->mbox_mem_pool);
4986 }
4987
4988 /**
4989  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4990  * topology.
4991  * @phba: pointer to lpfc hba data structure.
4992  * @evt_code: asynchronous event code.
4993  * @speed_code: asynchronous event link speed code.
4994  *
4995  * This routine is to parse the giving SLI4 async event link speed code into
4996  * value of Read topology link speed.
4997  *
4998  * Return: link speed in terms of Read topology.
4999  **/
5000 static uint8_t
5001 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5002 {
5003         uint8_t port_speed;
5004
5005         switch (speed_code) {
5006         case LPFC_FC_LA_SPEED_1G:
5007                 port_speed = LPFC_LINK_SPEED_1GHZ;
5008                 break;
5009         case LPFC_FC_LA_SPEED_2G:
5010                 port_speed = LPFC_LINK_SPEED_2GHZ;
5011                 break;
5012         case LPFC_FC_LA_SPEED_4G:
5013                 port_speed = LPFC_LINK_SPEED_4GHZ;
5014                 break;
5015         case LPFC_FC_LA_SPEED_8G:
5016                 port_speed = LPFC_LINK_SPEED_8GHZ;
5017                 break;
5018         case LPFC_FC_LA_SPEED_16G:
5019                 port_speed = LPFC_LINK_SPEED_16GHZ;
5020                 break;
5021         case LPFC_FC_LA_SPEED_32G:
5022                 port_speed = LPFC_LINK_SPEED_32GHZ;
5023                 break;
5024         case LPFC_FC_LA_SPEED_64G:
5025                 port_speed = LPFC_LINK_SPEED_64GHZ;
5026                 break;
5027         case LPFC_FC_LA_SPEED_128G:
5028                 port_speed = LPFC_LINK_SPEED_128GHZ;
5029                 break;
5030         case LPFC_FC_LA_SPEED_256G:
5031                 port_speed = LPFC_LINK_SPEED_256GHZ;
5032                 break;
5033         default:
5034                 port_speed = 0;
5035                 break;
5036         }
5037
5038         return port_speed;
5039 }
5040
5041 #define trunk_link_status(__idx)\
5042         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5043                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5044                 "Link up" : "Link down") : "NA"
5045 /* Did port __idx reported an error */
5046 #define trunk_port_fault(__idx)\
5047         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5048                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5049
5050 static void
5051 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5052                               struct lpfc_acqe_fc_la *acqe_fc)
5053 {
5054         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5055         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5056
5057         phba->sli4_hba.link_state.speed =
5058                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5059                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5060
5061         phba->sli4_hba.link_state.logical_speed =
5062                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5063         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5064         phba->fc_linkspeed =
5065                  lpfc_async_link_speed_to_read_top(
5066                                 phba,
5067                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5068
5069         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5070                 phba->trunk_link.link0.state =
5071                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5072                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5073                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5074         }
5075         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5076                 phba->trunk_link.link1.state =
5077                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5078                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5079                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5080         }
5081         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5082                 phba->trunk_link.link2.state =
5083                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5084                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5085                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5086         }
5087         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5088                 phba->trunk_link.link3.state =
5089                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5090                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5091                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5092         }
5093
5094         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5095                         "2910 Async FC Trunking Event - Speed:%d\n"
5096                         "\tLogical speed:%d "
5097                         "port0: %s port1: %s port2: %s port3: %s\n",
5098                         phba->sli4_hba.link_state.speed,
5099                         phba->sli4_hba.link_state.logical_speed,
5100                         trunk_link_status(0), trunk_link_status(1),
5101                         trunk_link_status(2), trunk_link_status(3));
5102
5103         if (port_fault)
5104                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5105                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5106                                 /*
5107                                  * SLI-4: We have only 0xA error codes
5108                                  * defined as of now. print an appropriate
5109                                  * message in case driver needs to be updated.
5110                                  */
5111                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5112                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5113                                 trunk_port_fault(0), trunk_port_fault(1),
5114                                 trunk_port_fault(2), trunk_port_fault(3));
5115 }
5116
5117
5118 /**
5119  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5120  * @phba: pointer to lpfc hba data structure.
5121  * @acqe_fc: pointer to the async fc completion queue entry.
5122  *
5123  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5124  * that the event was received and then issue a read_topology mailbox command so
5125  * that the rest of the driver will treat it the same as SLI3.
5126  **/
5127 static void
5128 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5129 {
5130         struct lpfc_dmabuf *mp;
5131         LPFC_MBOXQ_t *pmb;
5132         MAILBOX_t *mb;
5133         struct lpfc_mbx_read_top *la;
5134         int rc;
5135
5136         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5137             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5138                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5139                                 "2895 Non FC link Event detected.(%d)\n",
5140                                 bf_get(lpfc_trailer_type, acqe_fc));
5141                 return;
5142         }
5143
5144         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5145             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5146                 lpfc_update_trunk_link_status(phba, acqe_fc);
5147                 return;
5148         }
5149
5150         /* Keep the link status for extra SLI4 state machine reference */
5151         phba->sli4_hba.link_state.speed =
5152                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5153                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5154         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5155         phba->sli4_hba.link_state.topology =
5156                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5157         phba->sli4_hba.link_state.status =
5158                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5159         phba->sli4_hba.link_state.type =
5160                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5161         phba->sli4_hba.link_state.number =
5162                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5163         phba->sli4_hba.link_state.fault =
5164                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5165
5166         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5167             LPFC_FC_LA_TYPE_LINK_DOWN)
5168                 phba->sli4_hba.link_state.logical_speed = 0;
5169         else if (!phba->sli4_hba.conf_trunk)
5170                 phba->sli4_hba.link_state.logical_speed =
5171                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5172
5173         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5174                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5175                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5176                         "%dMbps Fault:%d\n",
5177                         phba->sli4_hba.link_state.speed,
5178                         phba->sli4_hba.link_state.topology,
5179                         phba->sli4_hba.link_state.status,
5180                         phba->sli4_hba.link_state.type,
5181                         phba->sli4_hba.link_state.number,
5182                         phba->sli4_hba.link_state.logical_speed,
5183                         phba->sli4_hba.link_state.fault);
5184         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5185         if (!pmb) {
5186                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5187                                 "2897 The mboxq allocation failed\n");
5188                 return;
5189         }
5190         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5191         if (!mp) {
5192                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5193                                 "2898 The lpfc_dmabuf allocation failed\n");
5194                 goto out_free_pmb;
5195         }
5196         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5197         if (!mp->virt) {
5198                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5199                                 "2899 The mbuf allocation failed\n");
5200                 goto out_free_dmabuf;
5201         }
5202
5203         /* Cleanup any outstanding ELS commands */
5204         lpfc_els_flush_all_cmd(phba);
5205
5206         /* Block ELS IOCBs until we have done process link event */
5207         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5208
5209         /* Update link event statistics */
5210         phba->sli.slistat.link_event++;
5211
5212         /* Create lpfc_handle_latt mailbox command from link ACQE */
5213         lpfc_read_topology(phba, pmb, mp);
5214         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5215         pmb->vport = phba->pport;
5216
5217         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5218                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5219
5220                 switch (phba->sli4_hba.link_state.status) {
5221                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5222                         phba->link_flag |= LS_MDS_LINK_DOWN;
5223                         break;
5224                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5225                         phba->link_flag |= LS_MDS_LOOPBACK;
5226                         break;
5227                 default:
5228                         break;
5229                 }
5230
5231                 /* Initialize completion status */
5232                 mb = &pmb->u.mb;
5233                 mb->mbxStatus = MBX_SUCCESS;
5234
5235                 /* Parse port fault information field */
5236                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5237
5238                 /* Parse and translate link attention fields */
5239                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5240                 la->eventTag = acqe_fc->event_tag;
5241
5242                 if (phba->sli4_hba.link_state.status ==
5243                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5244                         bf_set(lpfc_mbx_read_top_att_type, la,
5245                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5246                 } else {
5247                         bf_set(lpfc_mbx_read_top_att_type, la,
5248                                LPFC_FC_LA_TYPE_LINK_DOWN);
5249                 }
5250                 /* Invoke the mailbox command callback function */
5251                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5252
5253                 return;
5254         }
5255
5256         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5257         if (rc == MBX_NOT_FINISHED)
5258                 goto out_free_dmabuf;
5259         return;
5260
5261 out_free_dmabuf:
5262         kfree(mp);
5263 out_free_pmb:
5264         mempool_free(pmb, phba->mbox_mem_pool);
5265 }
5266
5267 /**
5268  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5269  * @phba: pointer to lpfc hba data structure.
5270  * @acqe_fc: pointer to the async SLI completion queue entry.
5271  *
5272  * This routine is to handle the SLI4 asynchronous SLI events.
5273  **/
5274 static void
5275 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5276 {
5277         char port_name;
5278         char message[128];
5279         uint8_t status;
5280         uint8_t evt_type;
5281         uint8_t operational = 0;
5282         struct temp_event temp_event_data;
5283         struct lpfc_acqe_misconfigured_event *misconfigured;
5284         struct Scsi_Host  *shost;
5285         struct lpfc_vport **vports;
5286         int rc, i;
5287
5288         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5289
5290         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5291                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
5292                         "x%08x SLI Event Type:%d\n",
5293                         acqe_sli->event_data1, acqe_sli->event_data2,
5294                         evt_type);
5295
5296         port_name = phba->Port[0];
5297         if (port_name == 0x00)
5298                 port_name = '?'; /* get port name is empty */
5299
5300         switch (evt_type) {
5301         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5302                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5303                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5304                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5305
5306                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5307                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5308                                 acqe_sli->event_data1, port_name);
5309
5310                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5311                 shost = lpfc_shost_from_vport(phba->pport);
5312                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5313                                           sizeof(temp_event_data),
5314                                           (char *)&temp_event_data,
5315                                           SCSI_NL_VID_TYPE_PCI
5316                                           | PCI_VENDOR_ID_EMULEX);
5317                 break;
5318         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5319                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5320                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5321                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5322
5323                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5324                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5325                                 acqe_sli->event_data1, port_name);
5326
5327                 shost = lpfc_shost_from_vport(phba->pport);
5328                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5329                                           sizeof(temp_event_data),
5330                                           (char *)&temp_event_data,
5331                                           SCSI_NL_VID_TYPE_PCI
5332                                           | PCI_VENDOR_ID_EMULEX);
5333                 break;
5334         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5335                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5336                                         &acqe_sli->event_data1;
5337
5338                 /* fetch the status for this port */
5339                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5340                 case LPFC_LINK_NUMBER_0:
5341                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5342                                         &misconfigured->theEvent);
5343                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5344                                         &misconfigured->theEvent);
5345                         break;
5346                 case LPFC_LINK_NUMBER_1:
5347                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5348                                         &misconfigured->theEvent);
5349                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5350                                         &misconfigured->theEvent);
5351                         break;
5352                 case LPFC_LINK_NUMBER_2:
5353                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5354                                         &misconfigured->theEvent);
5355                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5356                                         &misconfigured->theEvent);
5357                         break;
5358                 case LPFC_LINK_NUMBER_3:
5359                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5360                                         &misconfigured->theEvent);
5361                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5362                                         &misconfigured->theEvent);
5363                         break;
5364                 default:
5365                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5366                                         "3296 "
5367                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5368                                         "event: Invalid link %d",
5369                                         phba->sli4_hba.lnk_info.lnk_no);
5370                         return;
5371                 }
5372
5373                 /* Skip if optic state unchanged */
5374                 if (phba->sli4_hba.lnk_info.optic_state == status)
5375                         return;
5376
5377                 switch (status) {
5378                 case LPFC_SLI_EVENT_STATUS_VALID:
5379                         sprintf(message, "Physical Link is functional");
5380                         break;
5381                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5382                         sprintf(message, "Optics faulted/incorrectly "
5383                                 "installed/not installed - Reseat optics, "
5384                                 "if issue not resolved, replace.");
5385                         break;
5386                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5387                         sprintf(message,
5388                                 "Optics of two types installed - Remove one "
5389                                 "optic or install matching pair of optics.");
5390                         break;
5391                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5392                         sprintf(message, "Incompatible optics - Replace with "
5393                                 "compatible optics for card to function.");
5394                         break;
5395                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5396                         sprintf(message, "Unqualified optics - Replace with "
5397                                 "Avago optics for Warranty and Technical "
5398                                 "Support - Link is%s operational",
5399                                 (operational) ? " not" : "");
5400                         break;
5401                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5402                         sprintf(message, "Uncertified optics - Replace with "
5403                                 "Avago-certified optics to enable link "
5404                                 "operation - Link is%s operational",
5405                                 (operational) ? " not" : "");
5406                         break;
5407                 default:
5408                         /* firmware is reporting a status we don't know about */
5409                         sprintf(message, "Unknown event status x%02x", status);
5410                         break;
5411                 }
5412
5413                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5414                 rc = lpfc_sli4_read_config(phba);
5415                 if (rc) {
5416                         phba->lmt = 0;
5417                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5418                                         "3194 Unable to retrieve supported "
5419                                         "speeds, rc = 0x%x\n", rc);
5420                 }
5421                 vports = lpfc_create_vport_work_array(phba);
5422                 if (vports != NULL) {
5423                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5424                                         i++) {
5425                                 shost = lpfc_shost_from_vport(vports[i]);
5426                                 lpfc_host_supported_speeds_set(shost);
5427                         }
5428                 }
5429                 lpfc_destroy_vport_work_array(phba, vports);
5430
5431                 phba->sli4_hba.lnk_info.optic_state = status;
5432                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5433                                 "3176 Port Name %c %s\n", port_name, message);
5434                 break;
5435         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5436                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5437                                 "3192 Remote DPort Test Initiated - "
5438                                 "Event Data1:x%08x Event Data2: x%08x\n",
5439                                 acqe_sli->event_data1, acqe_sli->event_data2);
5440                 break;
5441         default:
5442                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5443                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5444                                 "x%08x SLI Event Type:%d\n",
5445                                 acqe_sli->event_data1, acqe_sli->event_data2,
5446                                 evt_type);
5447                 break;
5448         }
5449 }
5450
5451 /**
5452  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5453  * @vport: pointer to vport data structure.
5454  *
5455  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5456  * response to a CVL event.
5457  *
5458  * Return the pointer to the ndlp with the vport if successful, otherwise
5459  * return NULL.
5460  **/
5461 static struct lpfc_nodelist *
5462 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5463 {
5464         struct lpfc_nodelist *ndlp;
5465         struct Scsi_Host *shost;
5466         struct lpfc_hba *phba;
5467
5468         if (!vport)
5469                 return NULL;
5470         phba = vport->phba;
5471         if (!phba)
5472                 return NULL;
5473         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5474         if (!ndlp) {
5475                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5476                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5477                 if (!ndlp)
5478                         return 0;
5479                 /* Set the node type */
5480                 ndlp->nlp_type |= NLP_FABRIC;
5481                 /* Put ndlp onto node list */
5482                 lpfc_enqueue_node(vport, ndlp);
5483         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5484                 /* re-setup ndlp without removing from node list */
5485                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5486                 if (!ndlp)
5487                         return 0;
5488         }
5489         if ((phba->pport->port_state < LPFC_FLOGI) &&
5490                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5491                 return NULL;
5492         /* If virtual link is not yet instantiated ignore CVL */
5493         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5494                 && (vport->port_state != LPFC_VPORT_FAILED))
5495                 return NULL;
5496         shost = lpfc_shost_from_vport(vport);
5497         if (!shost)
5498                 return NULL;
5499         lpfc_linkdown_port(vport);
5500         lpfc_cleanup_pending_mbox(vport);
5501         spin_lock_irq(shost->host_lock);
5502         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5503         spin_unlock_irq(shost->host_lock);
5504
5505         return ndlp;
5506 }
5507
5508 /**
5509  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5510  * @vport: pointer to lpfc hba data structure.
5511  *
5512  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5513  * response to a FCF dead event.
5514  **/
5515 static void
5516 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5517 {
5518         struct lpfc_vport **vports;
5519         int i;
5520
5521         vports = lpfc_create_vport_work_array(phba);
5522         if (vports)
5523                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5524                         lpfc_sli4_perform_vport_cvl(vports[i]);
5525         lpfc_destroy_vport_work_array(phba, vports);
5526 }
5527
5528 /**
5529  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5530  * @phba: pointer to lpfc hba data structure.
5531  * @acqe_link: pointer to the async fcoe completion queue entry.
5532  *
5533  * This routine is to handle the SLI4 asynchronous fcoe event.
5534  **/
5535 static void
5536 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5537                         struct lpfc_acqe_fip *acqe_fip)
5538 {
5539         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5540         int rc;
5541         struct lpfc_vport *vport;
5542         struct lpfc_nodelist *ndlp;
5543         struct Scsi_Host  *shost;
5544         int active_vlink_present;
5545         struct lpfc_vport **vports;
5546         int i;
5547
5548         phba->fc_eventTag = acqe_fip->event_tag;
5549         phba->fcoe_eventtag = acqe_fip->event_tag;
5550         switch (event_type) {
5551         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5552         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5553                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5554                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5555                                         LOG_DISCOVERY,
5556                                         "2546 New FCF event, evt_tag:x%x, "
5557                                         "index:x%x\n",
5558                                         acqe_fip->event_tag,
5559                                         acqe_fip->index);
5560                 else
5561                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5562                                         LOG_DISCOVERY,
5563                                         "2788 FCF param modified event, "
5564                                         "evt_tag:x%x, index:x%x\n",
5565                                         acqe_fip->event_tag,
5566                                         acqe_fip->index);
5567                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5568                         /*
5569                          * During period of FCF discovery, read the FCF
5570                          * table record indexed by the event to update
5571                          * FCF roundrobin failover eligible FCF bmask.
5572                          */
5573                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5574                                         LOG_DISCOVERY,
5575                                         "2779 Read FCF (x%x) for updating "
5576                                         "roundrobin FCF failover bmask\n",
5577                                         acqe_fip->index);
5578                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5579                 }
5580
5581                 /* If the FCF discovery is in progress, do nothing. */
5582                 spin_lock_irq(&phba->hbalock);
5583                 if (phba->hba_flag & FCF_TS_INPROG) {
5584                         spin_unlock_irq(&phba->hbalock);
5585                         break;
5586                 }
5587                 /* If fast FCF failover rescan event is pending, do nothing */
5588                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5589                         spin_unlock_irq(&phba->hbalock);
5590                         break;
5591                 }
5592
5593                 /* If the FCF has been in discovered state, do nothing. */
5594                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5595                         spin_unlock_irq(&phba->hbalock);
5596                         break;
5597                 }
5598                 spin_unlock_irq(&phba->hbalock);
5599
5600                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5601                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5602                                 "2770 Start FCF table scan per async FCF "
5603                                 "event, evt_tag:x%x, index:x%x\n",
5604                                 acqe_fip->event_tag, acqe_fip->index);
5605                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5606                                                      LPFC_FCOE_FCF_GET_FIRST);
5607                 if (rc)
5608                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5609                                         "2547 Issue FCF scan read FCF mailbox "
5610                                         "command failed (x%x)\n", rc);
5611                 break;
5612
5613         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5614                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5615                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5616                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5617                         acqe_fip->event_tag);
5618                 break;
5619
5620         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5621                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5622                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5623                         "2549 FCF (x%x) disconnected from network, "
5624                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5625                 /*
5626                  * If we are in the middle of FCF failover process, clear
5627                  * the corresponding FCF bit in the roundrobin bitmap.
5628                  */
5629                 spin_lock_irq(&phba->hbalock);
5630                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5631                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5632                         spin_unlock_irq(&phba->hbalock);
5633                         /* Update FLOGI FCF failover eligible FCF bmask */
5634                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5635                         break;
5636                 }
5637                 spin_unlock_irq(&phba->hbalock);
5638
5639                 /* If the event is not for currently used fcf do nothing */
5640                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5641                         break;
5642
5643                 /*
5644                  * Otherwise, request the port to rediscover the entire FCF
5645                  * table for a fast recovery from case that the current FCF
5646                  * is no longer valid as we are not in the middle of FCF
5647                  * failover process already.
5648                  */
5649                 spin_lock_irq(&phba->hbalock);
5650                 /* Mark the fast failover process in progress */
5651                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5652                 spin_unlock_irq(&phba->hbalock);
5653
5654                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5655                                 "2771 Start FCF fast failover process due to "
5656                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5657                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5658                 rc = lpfc_sli4_redisc_fcf_table(phba);
5659                 if (rc) {
5660                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5661                                         LOG_DISCOVERY,
5662                                         "2772 Issue FCF rediscover mailbox "
5663                                         "command failed, fail through to FCF "
5664                                         "dead event\n");
5665                         spin_lock_irq(&phba->hbalock);
5666                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5667                         spin_unlock_irq(&phba->hbalock);
5668                         /*
5669                          * Last resort will fail over by treating this
5670                          * as a link down to FCF registration.
5671                          */
5672                         lpfc_sli4_fcf_dead_failthrough(phba);
5673                 } else {
5674                         /* Reset FCF roundrobin bmask for new discovery */
5675                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5676                         /*
5677                          * Handling fast FCF failover to a DEAD FCF event is
5678                          * considered equalivant to receiving CVL to all vports.
5679                          */
5680                         lpfc_sli4_perform_all_vport_cvl(phba);
5681                 }
5682                 break;
5683         case LPFC_FIP_EVENT_TYPE_CVL:
5684                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5685                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5686                         "2718 Clear Virtual Link Received for VPI 0x%x"
5687                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5688
5689                 vport = lpfc_find_vport_by_vpid(phba,
5690                                                 acqe_fip->index);
5691                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5692                 if (!ndlp)
5693                         break;
5694                 active_vlink_present = 0;
5695
5696                 vports = lpfc_create_vport_work_array(phba);
5697                 if (vports) {
5698                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5699                                         i++) {
5700                                 if ((!(vports[i]->fc_flag &
5701                                         FC_VPORT_CVL_RCVD)) &&
5702                                         (vports[i]->port_state > LPFC_FDISC)) {
5703                                         active_vlink_present = 1;
5704                                         break;
5705                                 }
5706                         }
5707                         lpfc_destroy_vport_work_array(phba, vports);
5708                 }
5709
5710                 /*
5711                  * Don't re-instantiate if vport is marked for deletion.
5712                  * If we are here first then vport_delete is going to wait
5713                  * for discovery to complete.
5714                  */
5715                 if (!(vport->load_flag & FC_UNLOADING) &&
5716                                         active_vlink_present) {
5717                         /*
5718                          * If there are other active VLinks present,
5719                          * re-instantiate the Vlink using FDISC.
5720                          */
5721                         mod_timer(&ndlp->nlp_delayfunc,
5722                                   jiffies + msecs_to_jiffies(1000));
5723                         shost = lpfc_shost_from_vport(vport);
5724                         spin_lock_irq(shost->host_lock);
5725                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5726                         spin_unlock_irq(shost->host_lock);
5727                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5728                         vport->port_state = LPFC_FDISC;
5729                 } else {
5730                         /*
5731                          * Otherwise, we request port to rediscover
5732                          * the entire FCF table for a fast recovery
5733                          * from possible case that the current FCF
5734                          * is no longer valid if we are not already
5735                          * in the FCF failover process.
5736                          */
5737                         spin_lock_irq(&phba->hbalock);
5738                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5739                                 spin_unlock_irq(&phba->hbalock);
5740                                 break;
5741                         }
5742                         /* Mark the fast failover process in progress */
5743                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5744                         spin_unlock_irq(&phba->hbalock);
5745                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5746                                         LOG_DISCOVERY,
5747                                         "2773 Start FCF failover per CVL, "
5748                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5749                         rc = lpfc_sli4_redisc_fcf_table(phba);
5750                         if (rc) {
5751                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5752                                                 LOG_DISCOVERY,
5753                                                 "2774 Issue FCF rediscover "
5754                                                 "mailbox command failed, "
5755                                                 "through to CVL event\n");
5756                                 spin_lock_irq(&phba->hbalock);
5757                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5758                                 spin_unlock_irq(&phba->hbalock);
5759                                 /*
5760                                  * Last resort will be re-try on the
5761                                  * the current registered FCF entry.
5762                                  */
5763                                 lpfc_retry_pport_discovery(phba);
5764                         } else
5765                                 /*
5766                                  * Reset FCF roundrobin bmask for new
5767                                  * discovery.
5768                                  */
5769                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5770                 }
5771                 break;
5772         default:
5773                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5774                         "0288 Unknown FCoE event type 0x%x event tag "
5775                         "0x%x\n", event_type, acqe_fip->event_tag);
5776                 break;
5777         }
5778 }
5779
5780 /**
5781  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5782  * @phba: pointer to lpfc hba data structure.
5783  * @acqe_link: pointer to the async dcbx completion queue entry.
5784  *
5785  * This routine is to handle the SLI4 asynchronous dcbx event.
5786  **/
5787 static void
5788 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5789                          struct lpfc_acqe_dcbx *acqe_dcbx)
5790 {
5791         phba->fc_eventTag = acqe_dcbx->event_tag;
5792         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5793                         "0290 The SLI4 DCBX asynchronous event is not "
5794                         "handled yet\n");
5795 }
5796
5797 /**
5798  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5799  * @phba: pointer to lpfc hba data structure.
5800  * @acqe_link: pointer to the async grp5 completion queue entry.
5801  *
5802  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5803  * is an asynchronous notified of a logical link speed change.  The Port
5804  * reports the logical link speed in units of 10Mbps.
5805  **/
5806 static void
5807 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5808                          struct lpfc_acqe_grp5 *acqe_grp5)
5809 {
5810         uint16_t prev_ll_spd;
5811
5812         phba->fc_eventTag = acqe_grp5->event_tag;
5813         phba->fcoe_eventtag = acqe_grp5->event_tag;
5814         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5815         phba->sli4_hba.link_state.logical_speed =
5816                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5817         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5818                         "2789 GRP5 Async Event: Updating logical link speed "
5819                         "from %dMbps to %dMbps\n", prev_ll_spd,
5820                         phba->sli4_hba.link_state.logical_speed);
5821 }
5822
5823 /**
5824  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5825  * @phba: pointer to lpfc hba data structure.
5826  *
5827  * This routine is invoked by the worker thread to process all the pending
5828  * SLI4 asynchronous events.
5829  **/
5830 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5831 {
5832         struct lpfc_cq_event *cq_event;
5833
5834         /* First, declare the async event has been handled */
5835         spin_lock_irq(&phba->hbalock);
5836         phba->hba_flag &= ~ASYNC_EVENT;
5837         spin_unlock_irq(&phba->hbalock);
5838         /* Now, handle all the async events */
5839         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5840                 /* Get the first event from the head of the event queue */
5841                 spin_lock_irq(&phba->hbalock);
5842                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5843                                  cq_event, struct lpfc_cq_event, list);
5844                 spin_unlock_irq(&phba->hbalock);
5845                 /* Process the asynchronous event */
5846                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5847                 case LPFC_TRAILER_CODE_LINK:
5848                         lpfc_sli4_async_link_evt(phba,
5849                                                  &cq_event->cqe.acqe_link);
5850                         break;
5851                 case LPFC_TRAILER_CODE_FCOE:
5852                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5853                         break;
5854                 case LPFC_TRAILER_CODE_DCBX:
5855                         lpfc_sli4_async_dcbx_evt(phba,
5856                                                  &cq_event->cqe.acqe_dcbx);
5857                         break;
5858                 case LPFC_TRAILER_CODE_GRP5:
5859                         lpfc_sli4_async_grp5_evt(phba,
5860                                                  &cq_event->cqe.acqe_grp5);
5861                         break;
5862                 case LPFC_TRAILER_CODE_FC:
5863                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5864                         break;
5865                 case LPFC_TRAILER_CODE_SLI:
5866                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5867                         break;
5868                 default:
5869                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5870                                         "1804 Invalid asynchrous event code: "
5871                                         "x%x\n", bf_get(lpfc_trailer_code,
5872                                         &cq_event->cqe.mcqe_cmpl));
5873                         break;
5874                 }
5875                 /* Free the completion event processed to the free pool */
5876                 lpfc_sli4_cq_event_release(phba, cq_event);
5877         }
5878 }
5879
5880 /**
5881  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5882  * @phba: pointer to lpfc hba data structure.
5883  *
5884  * This routine is invoked by the worker thread to process FCF table
5885  * rediscovery pending completion event.
5886  **/
5887 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5888 {
5889         int rc;
5890
5891         spin_lock_irq(&phba->hbalock);
5892         /* Clear FCF rediscovery timeout event */
5893         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5894         /* Clear driver fast failover FCF record flag */
5895         phba->fcf.failover_rec.flag = 0;
5896         /* Set state for FCF fast failover */
5897         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5898         spin_unlock_irq(&phba->hbalock);
5899
5900         /* Scan FCF table from the first entry to re-discover SAN */
5901         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5902                         "2777 Start post-quiescent FCF table scan\n");
5903         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5904         if (rc)
5905                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5906                                 "2747 Issue FCF scan read FCF mailbox "
5907                                 "command failed 0x%x\n", rc);
5908 }
5909
5910 /**
5911  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5912  * @phba: pointer to lpfc hba data structure.
5913  * @dev_grp: The HBA PCI-Device group number.
5914  *
5915  * This routine is invoked to set up the per HBA PCI-Device group function
5916  * API jump table entries.
5917  *
5918  * Return: 0 if success, otherwise -ENODEV
5919  **/
5920 int
5921 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5922 {
5923         int rc;
5924
5925         /* Set up lpfc PCI-device group */
5926         phba->pci_dev_grp = dev_grp;
5927
5928         /* The LPFC_PCI_DEV_OC uses SLI4 */
5929         if (dev_grp == LPFC_PCI_DEV_OC)
5930                 phba->sli_rev = LPFC_SLI_REV4;
5931
5932         /* Set up device INIT API function jump table */
5933         rc = lpfc_init_api_table_setup(phba, dev_grp);
5934         if (rc)
5935                 return -ENODEV;
5936         /* Set up SCSI API function jump table */
5937         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5938         if (rc)
5939                 return -ENODEV;
5940         /* Set up SLI API function jump table */
5941         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5942         if (rc)
5943                 return -ENODEV;
5944         /* Set up MBOX API function jump table */
5945         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5946         if (rc)
5947                 return -ENODEV;
5948
5949         return 0;
5950 }
5951
5952 /**
5953  * lpfc_log_intr_mode - Log the active interrupt mode
5954  * @phba: pointer to lpfc hba data structure.
5955  * @intr_mode: active interrupt mode adopted.
5956  *
5957  * This routine it invoked to log the currently used active interrupt mode
5958  * to the device.
5959  **/
5960 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5961 {
5962         switch (intr_mode) {
5963         case 0:
5964                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5965                                 "0470 Enable INTx interrupt mode.\n");
5966                 break;
5967         case 1:
5968                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5969                                 "0481 Enabled MSI interrupt mode.\n");
5970                 break;
5971         case 2:
5972                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5973                                 "0480 Enabled MSI-X interrupt mode.\n");
5974                 break;
5975         default:
5976                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5977                                 "0482 Illegal interrupt mode.\n");
5978                 break;
5979         }
5980         return;
5981 }
5982
5983 /**
5984  * lpfc_enable_pci_dev - Enable a generic PCI device.
5985  * @phba: pointer to lpfc hba data structure.
5986  *
5987  * This routine is invoked to enable the PCI device that is common to all
5988  * PCI devices.
5989  *
5990  * Return codes
5991  *      0 - successful
5992  *      other values - error
5993  **/
5994 static int
5995 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5996 {
5997         struct pci_dev *pdev;
5998
5999         /* Obtain PCI device reference */
6000         if (!phba->pcidev)
6001                 goto out_error;
6002         else
6003                 pdev = phba->pcidev;
6004         /* Enable PCI device */
6005         if (pci_enable_device_mem(pdev))
6006                 goto out_error;
6007         /* Request PCI resource for the device */
6008         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6009                 goto out_disable_device;
6010         /* Set up device as PCI master and save state for EEH */
6011         pci_set_master(pdev);
6012         pci_try_set_mwi(pdev);
6013         pci_save_state(pdev);
6014
6015         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6016         if (pci_is_pcie(pdev))
6017                 pdev->needs_freset = 1;
6018
6019         return 0;
6020
6021 out_disable_device:
6022         pci_disable_device(pdev);
6023 out_error:
6024         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6025                         "1401 Failed to enable pci device\n");
6026         return -ENODEV;
6027 }
6028
6029 /**
6030  * lpfc_disable_pci_dev - Disable a generic PCI device.
6031  * @phba: pointer to lpfc hba data structure.
6032  *
6033  * This routine is invoked to disable the PCI device that is common to all
6034  * PCI devices.
6035  **/
6036 static void
6037 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6038 {
6039         struct pci_dev *pdev;
6040
6041         /* Obtain PCI device reference */
6042         if (!phba->pcidev)
6043                 return;
6044         else
6045                 pdev = phba->pcidev;
6046         /* Release PCI resource and disable PCI device */
6047         pci_release_mem_regions(pdev);
6048         pci_disable_device(pdev);
6049
6050         return;
6051 }
6052
6053 /**
6054  * lpfc_reset_hba - Reset a hba
6055  * @phba: pointer to lpfc hba data structure.
6056  *
6057  * This routine is invoked to reset a hba device. It brings the HBA
6058  * offline, performs a board restart, and then brings the board back
6059  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6060  * on outstanding mailbox commands.
6061  **/
6062 void
6063 lpfc_reset_hba(struct lpfc_hba *phba)
6064 {
6065         /* If resets are disabled then set error state and return. */
6066         if (!phba->cfg_enable_hba_reset) {
6067                 phba->link_state = LPFC_HBA_ERROR;
6068                 return;
6069         }
6070         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6071                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6072         else
6073                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6074         lpfc_offline(phba);
6075         lpfc_sli_brdrestart(phba);
6076         lpfc_online(phba);
6077         lpfc_unblock_mgmt_io(phba);
6078 }
6079
6080 /**
6081  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6082  * @phba: pointer to lpfc hba data structure.
6083  *
6084  * This function enables the PCI SR-IOV virtual functions to a physical
6085  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6086  * enable the number of virtual functions to the physical function. As
6087  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6088  * API call does not considered as an error condition for most of the device.
6089  **/
6090 uint16_t
6091 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6092 {
6093         struct pci_dev *pdev = phba->pcidev;
6094         uint16_t nr_virtfn;
6095         int pos;
6096
6097         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6098         if (pos == 0)
6099                 return 0;
6100
6101         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6102         return nr_virtfn;
6103 }
6104
6105 /**
6106  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6107  * @phba: pointer to lpfc hba data structure.
6108  * @nr_vfn: number of virtual functions to be enabled.
6109  *
6110  * This function enables the PCI SR-IOV virtual functions to a physical
6111  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6112  * enable the number of virtual functions to the physical function. As
6113  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6114  * API call does not considered as an error condition for most of the device.
6115  **/
6116 int
6117 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6118 {
6119         struct pci_dev *pdev = phba->pcidev;
6120         uint16_t max_nr_vfn;
6121         int rc;
6122
6123         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6124         if (nr_vfn > max_nr_vfn) {
6125                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6126                                 "3057 Requested vfs (%d) greater than "
6127                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6128                 return -EINVAL;
6129         }
6130
6131         rc = pci_enable_sriov(pdev, nr_vfn);
6132         if (rc) {
6133                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6134                                 "2806 Failed to enable sriov on this device "
6135                                 "with vfn number nr_vf:%d, rc:%d\n",
6136                                 nr_vfn, rc);
6137         } else
6138                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6139                                 "2807 Successful enable sriov on this device "
6140                                 "with vfn number nr_vf:%d\n", nr_vfn);
6141         return rc;
6142 }
6143
6144 /**
6145  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6146  * @phba: pointer to lpfc hba data structure.
6147  *
6148  * This routine is invoked to set up the driver internal resources before the
6149  * device specific resource setup to support the HBA device it attached to.
6150  *
6151  * Return codes
6152  *      0 - successful
6153  *      other values - error
6154  **/
6155 static int
6156 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6157 {
6158         struct lpfc_sli *psli = &phba->sli;
6159
6160         /*
6161          * Driver resources common to all SLI revisions
6162          */
6163         atomic_set(&phba->fast_event_count, 0);
6164         spin_lock_init(&phba->hbalock);
6165
6166         /* Initialize ndlp management spinlock */
6167         spin_lock_init(&phba->ndlp_lock);
6168
6169         /* Initialize port_list spinlock */
6170         spin_lock_init(&phba->port_list_lock);
6171         INIT_LIST_HEAD(&phba->port_list);
6172
6173         INIT_LIST_HEAD(&phba->work_list);
6174         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6175
6176         /* Initialize the wait queue head for the kernel thread */
6177         init_waitqueue_head(&phba->work_waitq);
6178
6179         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6180                         "1403 Protocols supported %s %s %s\n",
6181                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6182                                 "SCSI" : " "),
6183                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6184                                 "NVME" : " "),
6185                         (phba->nvmet_support ? "NVMET" : " "));
6186
6187         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6188         spin_lock_init(&phba->scsi_buf_list_get_lock);
6189         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6190         spin_lock_init(&phba->scsi_buf_list_put_lock);
6191         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6192
6193         /* Initialize the fabric iocb list */
6194         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6195
6196         /* Initialize list to save ELS buffers */
6197         INIT_LIST_HEAD(&phba->elsbuf);
6198
6199         /* Initialize FCF connection rec list */
6200         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6201
6202         /* Initialize OAS configuration list */
6203         spin_lock_init(&phba->devicelock);
6204         INIT_LIST_HEAD(&phba->luns);
6205
6206         /* MBOX heartbeat timer */
6207         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6208         /* Fabric block timer */
6209         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6210         /* EA polling mode timer */
6211         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6212         /* Heartbeat timer */
6213         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6214
6215         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6216
6217         return 0;
6218 }
6219
6220 /**
6221  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6222  * @phba: pointer to lpfc hba data structure.
6223  *
6224  * This routine is invoked to set up the driver internal resources specific to
6225  * support the SLI-3 HBA device it attached to.
6226  *
6227  * Return codes
6228  * 0 - successful
6229  * other values - error
6230  **/
6231 static int
6232 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6233 {
6234         int rc, entry_sz;
6235
6236         /*
6237          * Initialize timers used by driver
6238          */
6239
6240         /* FCP polling mode timer */
6241         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6242
6243         /* Host attention work mask setup */
6244         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6245         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6246
6247         /* Get all the module params for configuring this host */
6248         lpfc_get_cfgparam(phba);
6249         /* Set up phase-1 common device driver resources */
6250
6251         rc = lpfc_setup_driver_resource_phase1(phba);
6252         if (rc)
6253                 return -ENODEV;
6254
6255         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6256                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6257                 /* check for menlo minimum sg count */
6258                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6259                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6260         }
6261
6262         if (!phba->sli.sli3_ring)
6263                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6264                                               sizeof(struct lpfc_sli_ring),
6265                                               GFP_KERNEL);
6266         if (!phba->sli.sli3_ring)
6267                 return -ENOMEM;
6268
6269         /*
6270          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6271          * used to create the sg_dma_buf_pool must be dynamically calculated.
6272          */
6273
6274         /* Initialize the host templates the configured values. */
6275         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6276         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6277         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6278
6279         if (phba->sli_rev == LPFC_SLI_REV4)
6280                 entry_sz = sizeof(struct sli4_sge);
6281         else
6282                 entry_sz = sizeof(struct ulp_bde64);
6283
6284         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6285         if (phba->cfg_enable_bg) {
6286                 /*
6287                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6288                  * the FCP rsp, and a BDE for each. Sice we have no control
6289                  * over how many protection data segments the SCSI Layer
6290                  * will hand us (ie: there could be one for every block
6291                  * in the IO), we just allocate enough BDEs to accomidate
6292                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6293                  * minimize the risk of running out.
6294                  */
6295                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6296                         sizeof(struct fcp_rsp) +
6297                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6298
6299                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6300                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6301
6302                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6303                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6304         } else {
6305                 /*
6306                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6307                  * the FCP rsp, a BDE for each, and a BDE for up to
6308                  * cfg_sg_seg_cnt data segments.
6309                  */
6310                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6311                         sizeof(struct fcp_rsp) +
6312                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6313
6314                 /* Total BDEs in BPL for scsi_sg_list */
6315                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6316         }
6317
6318         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6319                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6320                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6321                         phba->cfg_total_seg_cnt);
6322
6323         phba->max_vpi = LPFC_MAX_VPI;
6324         /* This will be set to correct value after config_port mbox */
6325         phba->max_vports = 0;
6326
6327         /*
6328          * Initialize the SLI Layer to run with lpfc HBAs.
6329          */
6330         lpfc_sli_setup(phba);
6331         lpfc_sli_queue_init(phba);
6332
6333         /* Allocate device driver memory */
6334         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6335                 return -ENOMEM;
6336
6337         /*
6338          * Enable sr-iov virtual functions if supported and configured
6339          * through the module parameter.
6340          */
6341         if (phba->cfg_sriov_nr_virtfn > 0) {
6342                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6343                                                  phba->cfg_sriov_nr_virtfn);
6344                 if (rc) {
6345                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6346                                         "2808 Requested number of SR-IOV "
6347                                         "virtual functions (%d) is not "
6348                                         "supported\n",
6349                                         phba->cfg_sriov_nr_virtfn);
6350                         phba->cfg_sriov_nr_virtfn = 0;
6351                 }
6352         }
6353
6354         return 0;
6355 }
6356
6357 /**
6358  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6359  * @phba: pointer to lpfc hba data structure.
6360  *
6361  * This routine is invoked to unset the driver internal resources set up
6362  * specific for supporting the SLI-3 HBA device it attached to.
6363  **/
6364 static void
6365 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6366 {
6367         /* Free device driver memory allocated */
6368         lpfc_mem_free_all(phba);
6369
6370         return;
6371 }
6372
6373 /**
6374  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6375  * @phba: pointer to lpfc hba data structure.
6376  *
6377  * This routine is invoked to set up the driver internal resources specific to
6378  * support the SLI-4 HBA device it attached to.
6379  *
6380  * Return codes
6381  *      0 - successful
6382  *      other values - error
6383  **/
6384 static int
6385 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6386 {
6387         LPFC_MBOXQ_t *mboxq;
6388         MAILBOX_t *mb;
6389         int rc, i, max_buf_size;
6390         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6391         struct lpfc_mqe *mqe;
6392         int longs;
6393         int extra;
6394         uint64_t wwn;
6395         u32 if_type;
6396         u32 if_fam;
6397
6398         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6399         phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6400         phba->sli4_hba.curr_disp_cpu = 0;
6401
6402         /* Get all the module params for configuring this host */
6403         lpfc_get_cfgparam(phba);
6404
6405         /* Set up phase-1 common device driver resources */
6406         rc = lpfc_setup_driver_resource_phase1(phba);
6407         if (rc)
6408                 return -ENODEV;
6409
6410         /* Before proceed, wait for POST done and device ready */
6411         rc = lpfc_sli4_post_status_check(phba);
6412         if (rc)
6413                 return -ENODEV;
6414
6415         /*
6416          * Initialize timers used by driver
6417          */
6418
6419         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6420
6421         /* FCF rediscover timer */
6422         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6423
6424         /*
6425          * Control structure for handling external multi-buffer mailbox
6426          * command pass-through.
6427          */
6428         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6429                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6430         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6431
6432         phba->max_vpi = LPFC_MAX_VPI;
6433
6434         /* This will be set to correct value after the read_config mbox */
6435         phba->max_vports = 0;
6436
6437         /* Program the default value of vlan_id and fc_map */
6438         phba->valid_vlan = 0;
6439         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6440         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6441         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6442
6443         /*
6444          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6445          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6446          * The WQ create will allocate the ring.
6447          */
6448
6449         /*
6450          * 1 for cmd, 1 for rsp, NVME adds an extra one
6451          * for boundary conditions in its max_sgl_segment template.
6452          */
6453         extra = 2;
6454         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6455                 extra++;
6456
6457         /*
6458          * It doesn't matter what family our adapter is in, we are
6459          * limited to 2 Pages, 512 SGEs, for our SGL.
6460          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6461          */
6462         max_buf_size = (2 * SLI4_PAGE_SIZE);
6463
6464         /*
6465          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6466          * used to create the sg_dma_buf_pool must be calculated.
6467          */
6468         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6469                 /*
6470                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6471                  * the FCP rsp, and a SGE. Sice we have no control
6472                  * over how many protection segments the SCSI Layer
6473                  * will hand us (ie: there could be one for every block
6474                  * in the IO), just allocate enough SGEs to accomidate
6475                  * our max amount and we need to limit lpfc_sg_seg_cnt
6476                  * to minimize the risk of running out.
6477                  */
6478                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6479                                 sizeof(struct fcp_rsp) + max_buf_size;
6480
6481                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6482                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6483
6484                 /*
6485                  * If supporting DIF, reduce the seg count for scsi to
6486                  * allow room for the DIF sges.
6487                  */
6488                 if (phba->cfg_enable_bg &&
6489                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6490                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6491                 else
6492                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6493
6494         } else {
6495                 /*
6496                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6497                  * the FCP rsp, a SGE for each, and a SGE for up to
6498                  * cfg_sg_seg_cnt data segments.
6499                  */
6500                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6501                                 sizeof(struct fcp_rsp) +
6502                                 ((phba->cfg_sg_seg_cnt + extra) *
6503                                 sizeof(struct sli4_sge));
6504
6505                 /* Total SGEs for scsi_sg_list */
6506                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6507                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6508
6509                 /*
6510                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6511                  * need to post 1 page for the SGL.
6512                  */
6513         }
6514
6515         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6516         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6517                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6518                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6519                                         "6300 Reducing NVME sg segment "
6520                                         "cnt to %d\n",
6521                                         LPFC_MAX_NVME_SEG_CNT);
6522                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6523                 } else
6524                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6525         }
6526
6527         /* Initialize the host templates with the updated values. */
6528         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6529         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6530         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6531
6532         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6533                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6534         else
6535                 phba->cfg_sg_dma_buf_size =
6536                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6537
6538         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6539                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6540                         "total:%d scsi:%d nvme:%d\n",
6541                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6542                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6543                         phba->cfg_nvme_seg_cnt);
6544
6545         /* Initialize buffer queue management fields */
6546         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6547         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6548         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6549
6550         /*
6551          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6552          */
6553         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6554                 /* Initialize the Abort scsi buffer list used by driver */
6555                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6556                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6557         }
6558
6559         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6560                 /* Initialize the Abort nvme buffer list used by driver */
6561                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6562                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6563                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6564                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6565                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6566         }
6567
6568         /* This abort list used by worker thread */
6569         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6570         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6571
6572         /*
6573          * Initialize driver internal slow-path work queues
6574          */
6575
6576         /* Driver internel slow-path CQ Event pool */
6577         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6578         /* Response IOCB work queue list */
6579         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6580         /* Asynchronous event CQ Event work queue list */
6581         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6582         /* Fast-path XRI aborted CQ Event work queue list */
6583         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6584         /* Slow-path XRI aborted CQ Event work queue list */
6585         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6586         /* Receive queue CQ Event work queue list */
6587         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6588
6589         /* Initialize extent block lists. */
6590         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6591         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6592         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6593         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6594
6595         /* Initialize mboxq lists. If the early init routines fail
6596          * these lists need to be correctly initialized.
6597          */
6598         INIT_LIST_HEAD(&phba->sli.mboxq);
6599         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6600
6601         /* initialize optic_state to 0xFF */
6602         phba->sli4_hba.lnk_info.optic_state = 0xff;
6603
6604         /* Allocate device driver memory */
6605         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6606         if (rc)
6607                 return -ENOMEM;
6608
6609         /* IF Type 2 ports get initialized now. */
6610         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6611             LPFC_SLI_INTF_IF_TYPE_2) {
6612                 rc = lpfc_pci_function_reset(phba);
6613                 if (unlikely(rc)) {
6614                         rc = -ENODEV;
6615                         goto out_free_mem;
6616                 }
6617                 phba->temp_sensor_support = 1;
6618         }
6619
6620         /* Create the bootstrap mailbox command */
6621         rc = lpfc_create_bootstrap_mbox(phba);
6622         if (unlikely(rc))
6623                 goto out_free_mem;
6624
6625         /* Set up the host's endian order with the device. */
6626         rc = lpfc_setup_endian_order(phba);
6627         if (unlikely(rc))
6628                 goto out_free_bsmbx;
6629
6630         /* Set up the hba's configuration parameters. */
6631         rc = lpfc_sli4_read_config(phba);
6632         if (unlikely(rc))
6633                 goto out_free_bsmbx;
6634         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6635         if (unlikely(rc))
6636                 goto out_free_bsmbx;
6637
6638         /* IF Type 0 ports get initialized now. */
6639         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6640             LPFC_SLI_INTF_IF_TYPE_0) {
6641                 rc = lpfc_pci_function_reset(phba);
6642                 if (unlikely(rc))
6643                         goto out_free_bsmbx;
6644         }
6645
6646         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6647                                                        GFP_KERNEL);
6648         if (!mboxq) {
6649                 rc = -ENOMEM;
6650                 goto out_free_bsmbx;
6651         }
6652
6653         /* Check for NVMET being configured */
6654         phba->nvmet_support = 0;
6655         if (lpfc_enable_nvmet_cnt) {
6656
6657                 /* First get WWN of HBA instance */
6658                 lpfc_read_nv(phba, mboxq);
6659                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6660                 if (rc != MBX_SUCCESS) {
6661                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6662                                         "6016 Mailbox failed , mbxCmd x%x "
6663                                         "READ_NV, mbxStatus x%x\n",
6664                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6665                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6666                         mempool_free(mboxq, phba->mbox_mem_pool);
6667                         rc = -EIO;
6668                         goto out_free_bsmbx;
6669                 }
6670                 mb = &mboxq->u.mb;
6671                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6672                        sizeof(uint64_t));
6673                 wwn = cpu_to_be64(wwn);
6674                 phba->sli4_hba.wwnn.u.name = wwn;
6675                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6676                        sizeof(uint64_t));
6677                 /* wwn is WWPN of HBA instance */
6678                 wwn = cpu_to_be64(wwn);
6679                 phba->sli4_hba.wwpn.u.name = wwn;
6680
6681                 /* Check to see if it matches any module parameter */
6682                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6683                         if (wwn == lpfc_enable_nvmet[i]) {
6684 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6685                                 if (lpfc_nvmet_mem_alloc(phba))
6686                                         break;
6687
6688                                 phba->nvmet_support = 1; /* a match */
6689
6690                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6691                                                 "6017 NVME Target %016llx\n",
6692                                                 wwn);
6693 #else
6694                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6695                                                 "6021 Can't enable NVME Target."
6696                                                 " NVME_TARGET_FC infrastructure"
6697                                                 " is not in kernel\n");
6698 #endif
6699                                 /* Not supported for NVMET */
6700                                 phba->cfg_xri_rebalancing = 0;
6701                                 break;
6702                         }
6703                 }
6704         }
6705
6706         lpfc_nvme_mod_param_dep(phba);
6707
6708         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6709         lpfc_supported_pages(mboxq);
6710         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6711         if (!rc) {
6712                 mqe = &mboxq->u.mqe;
6713                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6714                        LPFC_MAX_SUPPORTED_PAGES);
6715                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6716                         switch (pn_page[i]) {
6717                         case LPFC_SLI4_PARAMETERS:
6718                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6719                                 break;
6720                         default:
6721                                 break;
6722                         }
6723                 }
6724                 /* Read the port's SLI4 Parameters capabilities if supported. */
6725                 if (phba->sli4_hba.pc_sli4_params.supported)
6726                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6727                 if (rc) {
6728                         mempool_free(mboxq, phba->mbox_mem_pool);
6729                         rc = -EIO;
6730                         goto out_free_bsmbx;
6731                 }
6732         }
6733
6734         /*
6735          * Get sli4 parameters that override parameters from Port capabilities.
6736          * If this call fails, it isn't critical unless the SLI4 parameters come
6737          * back in conflict.
6738          */
6739         rc = lpfc_get_sli4_parameters(phba, mboxq);
6740         if (rc) {
6741                 if_type = bf_get(lpfc_sli_intf_if_type,
6742                                  &phba->sli4_hba.sli_intf);
6743                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6744                                 &phba->sli4_hba.sli_intf);
6745                 if (phba->sli4_hba.extents_in_use &&
6746                     phba->sli4_hba.rpi_hdrs_in_use) {
6747                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6748                                 "2999 Unsupported SLI4 Parameters "
6749                                 "Extents and RPI headers enabled.\n");
6750                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6751                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6752                                 mempool_free(mboxq, phba->mbox_mem_pool);
6753                                 rc = -EIO;
6754                                 goto out_free_bsmbx;
6755                         }
6756                 }
6757                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6758                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6759                         mempool_free(mboxq, phba->mbox_mem_pool);
6760                         rc = -EIO;
6761                         goto out_free_bsmbx;
6762                 }
6763         }
6764
6765         mempool_free(mboxq, phba->mbox_mem_pool);
6766
6767         /* Verify OAS is supported */
6768         lpfc_sli4_oas_verify(phba);
6769
6770         /* Verify RAS support on adapter */
6771         lpfc_sli4_ras_init(phba);
6772
6773         /* Verify all the SLI4 queues */
6774         rc = lpfc_sli4_queue_verify(phba);
6775         if (rc)
6776                 goto out_free_bsmbx;
6777
6778         /* Create driver internal CQE event pool */
6779         rc = lpfc_sli4_cq_event_pool_create(phba);
6780         if (rc)
6781                 goto out_free_bsmbx;
6782
6783         /* Initialize sgl lists per host */
6784         lpfc_init_sgl_list(phba);
6785
6786         /* Allocate and initialize active sgl array */
6787         rc = lpfc_init_active_sgl_array(phba);
6788         if (rc) {
6789                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6790                                 "1430 Failed to initialize sgl list.\n");
6791                 goto out_destroy_cq_event_pool;
6792         }
6793         rc = lpfc_sli4_init_rpi_hdrs(phba);
6794         if (rc) {
6795                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6796                                 "1432 Failed to initialize rpi headers.\n");
6797                 goto out_free_active_sgl;
6798         }
6799
6800         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6801         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6802         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6803                                          GFP_KERNEL);
6804         if (!phba->fcf.fcf_rr_bmask) {
6805                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6806                                 "2759 Failed allocate memory for FCF round "
6807                                 "robin failover bmask\n");
6808                 rc = -ENOMEM;
6809                 goto out_remove_rpi_hdrs;
6810         }
6811
6812         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6813                                             sizeof(struct lpfc_hba_eq_hdl),
6814                                             GFP_KERNEL);
6815         if (!phba->sli4_hba.hba_eq_hdl) {
6816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6817                                 "2572 Failed allocate memory for "
6818                                 "fast-path per-EQ handle array\n");
6819                 rc = -ENOMEM;
6820                 goto out_free_fcf_rr_bmask;
6821         }
6822
6823         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6824                                         sizeof(struct lpfc_vector_map_info),
6825                                         GFP_KERNEL);
6826         if (!phba->sli4_hba.cpu_map) {
6827                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6828                                 "3327 Failed allocate memory for msi-x "
6829                                 "interrupt vector mapping\n");
6830                 rc = -ENOMEM;
6831                 goto out_free_hba_eq_hdl;
6832         }
6833
6834         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6835         if (!phba->sli4_hba.eq_info) {
6836                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6837                                 "3321 Failed allocation for per_cpu stats\n");
6838                 rc = -ENOMEM;
6839                 goto out_free_hba_cpu_map;
6840         }
6841         /*
6842          * Enable sr-iov virtual functions if supported and configured
6843          * through the module parameter.
6844          */
6845         if (phba->cfg_sriov_nr_virtfn > 0) {
6846                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6847                                                  phba->cfg_sriov_nr_virtfn);
6848                 if (rc) {
6849                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6850                                         "3020 Requested number of SR-IOV "
6851                                         "virtual functions (%d) is not "
6852                                         "supported\n",
6853                                         phba->cfg_sriov_nr_virtfn);
6854                         phba->cfg_sriov_nr_virtfn = 0;
6855                 }
6856         }
6857
6858         return 0;
6859
6860 out_free_hba_cpu_map:
6861         kfree(phba->sli4_hba.cpu_map);
6862 out_free_hba_eq_hdl:
6863         kfree(phba->sli4_hba.hba_eq_hdl);
6864 out_free_fcf_rr_bmask:
6865         kfree(phba->fcf.fcf_rr_bmask);
6866 out_remove_rpi_hdrs:
6867         lpfc_sli4_remove_rpi_hdrs(phba);
6868 out_free_active_sgl:
6869         lpfc_free_active_sgl(phba);
6870 out_destroy_cq_event_pool:
6871         lpfc_sli4_cq_event_pool_destroy(phba);
6872 out_free_bsmbx:
6873         lpfc_destroy_bootstrap_mbox(phba);
6874 out_free_mem:
6875         lpfc_mem_free(phba);
6876         return rc;
6877 }
6878
6879 /**
6880  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6881  * @phba: pointer to lpfc hba data structure.
6882  *
6883  * This routine is invoked to unset the driver internal resources set up
6884  * specific for supporting the SLI-4 HBA device it attached to.
6885  **/
6886 static void
6887 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6888 {
6889         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6890
6891         free_percpu(phba->sli4_hba.eq_info);
6892
6893         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6894         kfree(phba->sli4_hba.cpu_map);
6895         phba->sli4_hba.num_possible_cpu = 0;
6896         phba->sli4_hba.num_present_cpu = 0;
6897         phba->sli4_hba.curr_disp_cpu = 0;
6898
6899         /* Free memory allocated for fast-path work queue handles */
6900         kfree(phba->sli4_hba.hba_eq_hdl);
6901
6902         /* Free the allocated rpi headers. */
6903         lpfc_sli4_remove_rpi_hdrs(phba);
6904         lpfc_sli4_remove_rpis(phba);
6905
6906         /* Free eligible FCF index bmask */
6907         kfree(phba->fcf.fcf_rr_bmask);
6908
6909         /* Free the ELS sgl list */
6910         lpfc_free_active_sgl(phba);
6911         lpfc_free_els_sgl_list(phba);
6912         lpfc_free_nvmet_sgl_list(phba);
6913
6914         /* Free the completion queue EQ event pool */
6915         lpfc_sli4_cq_event_release_all(phba);
6916         lpfc_sli4_cq_event_pool_destroy(phba);
6917
6918         /* Release resource identifiers. */
6919         lpfc_sli4_dealloc_resource_identifiers(phba);
6920
6921         /* Free the bsmbx region. */
6922         lpfc_destroy_bootstrap_mbox(phba);
6923
6924         /* Free the SLI Layer memory with SLI4 HBAs */
6925         lpfc_mem_free_all(phba);
6926
6927         /* Free the current connect table */
6928         list_for_each_entry_safe(conn_entry, next_conn_entry,
6929                 &phba->fcf_conn_rec_list, list) {
6930                 list_del_init(&conn_entry->list);
6931                 kfree(conn_entry);
6932         }
6933
6934         return;
6935 }
6936
6937 /**
6938  * lpfc_init_api_table_setup - Set up init api function jump table
6939  * @phba: The hba struct for which this call is being executed.
6940  * @dev_grp: The HBA PCI-Device group number.
6941  *
6942  * This routine sets up the device INIT interface API function jump table
6943  * in @phba struct.
6944  *
6945  * Returns: 0 - success, -ENODEV - failure.
6946  **/
6947 int
6948 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6949 {
6950         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6951         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6952         phba->lpfc_selective_reset = lpfc_selective_reset;
6953         switch (dev_grp) {
6954         case LPFC_PCI_DEV_LP:
6955                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6956                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6957                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6958                 break;
6959         case LPFC_PCI_DEV_OC:
6960                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6961                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6962                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6963                 break;
6964         default:
6965                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6966                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6967                                 dev_grp);
6968                 return -ENODEV;
6969                 break;
6970         }
6971         return 0;
6972 }
6973
6974 /**
6975  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6976  * @phba: pointer to lpfc hba data structure.
6977  *
6978  * This routine is invoked to set up the driver internal resources after the
6979  * device specific resource setup to support the HBA device it attached to.
6980  *
6981  * Return codes
6982  *      0 - successful
6983  *      other values - error
6984  **/
6985 static int
6986 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6987 {
6988         int error;
6989
6990         /* Startup the kernel thread for this host adapter. */
6991         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6992                                           "lpfc_worker_%d", phba->brd_no);
6993         if (IS_ERR(phba->worker_thread)) {
6994                 error = PTR_ERR(phba->worker_thread);
6995                 return error;
6996         }
6997
6998         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6999         if (phba->sli_rev == LPFC_SLI_REV4)
7000                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7001         else
7002                 phba->wq = NULL;
7003
7004         return 0;
7005 }
7006
7007 /**
7008  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7009  * @phba: pointer to lpfc hba data structure.
7010  *
7011  * This routine is invoked to unset the driver internal resources set up after
7012  * the device specific resource setup for supporting the HBA device it
7013  * attached to.
7014  **/
7015 static void
7016 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7017 {
7018         if (phba->wq) {
7019                 flush_workqueue(phba->wq);
7020                 destroy_workqueue(phba->wq);
7021                 phba->wq = NULL;
7022         }
7023
7024         /* Stop kernel worker thread */
7025         if (phba->worker_thread)
7026                 kthread_stop(phba->worker_thread);
7027 }
7028
7029 /**
7030  * lpfc_free_iocb_list - Free iocb list.
7031  * @phba: pointer to lpfc hba data structure.
7032  *
7033  * This routine is invoked to free the driver's IOCB list and memory.
7034  **/
7035 void
7036 lpfc_free_iocb_list(struct lpfc_hba *phba)
7037 {
7038         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7039
7040         spin_lock_irq(&phba->hbalock);
7041         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7042                                  &phba->lpfc_iocb_list, list) {
7043                 list_del(&iocbq_entry->list);
7044                 kfree(iocbq_entry);
7045                 phba->total_iocbq_bufs--;
7046         }
7047         spin_unlock_irq(&phba->hbalock);
7048
7049         return;
7050 }
7051
7052 /**
7053  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7054  * @phba: pointer to lpfc hba data structure.
7055  *
7056  * This routine is invoked to allocate and initizlize the driver's IOCB
7057  * list and set up the IOCB tag array accordingly.
7058  *
7059  * Return codes
7060  *      0 - successful
7061  *      other values - error
7062  **/
7063 int
7064 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7065 {
7066         struct lpfc_iocbq *iocbq_entry = NULL;
7067         uint16_t iotag;
7068         int i;
7069
7070         /* Initialize and populate the iocb list per host.  */
7071         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7072         for (i = 0; i < iocb_count; i++) {
7073                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7074                 if (iocbq_entry == NULL) {
7075                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7076                                 "expected %d count. Unloading driver.\n",
7077                                 __func__, i, LPFC_IOCB_LIST_CNT);
7078                         goto out_free_iocbq;
7079                 }
7080
7081                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7082                 if (iotag == 0) {
7083                         kfree(iocbq_entry);
7084                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7085                                 "Unloading driver.\n", __func__);
7086                         goto out_free_iocbq;
7087                 }
7088                 iocbq_entry->sli4_lxritag = NO_XRI;
7089                 iocbq_entry->sli4_xritag = NO_XRI;
7090
7091                 spin_lock_irq(&phba->hbalock);
7092                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7093                 phba->total_iocbq_bufs++;
7094                 spin_unlock_irq(&phba->hbalock);
7095         }
7096
7097         return 0;
7098
7099 out_free_iocbq:
7100         lpfc_free_iocb_list(phba);
7101
7102         return -ENOMEM;
7103 }
7104
7105 /**
7106  * lpfc_free_sgl_list - Free a given sgl list.
7107  * @phba: pointer to lpfc hba data structure.
7108  * @sglq_list: pointer to the head of sgl list.
7109  *
7110  * This routine is invoked to free a give sgl list and memory.
7111  **/
7112 void
7113 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7114 {
7115         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7116
7117         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7118                 list_del(&sglq_entry->list);
7119                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7120                 kfree(sglq_entry);
7121         }
7122 }
7123
7124 /**
7125  * lpfc_free_els_sgl_list - Free els sgl list.
7126  * @phba: pointer to lpfc hba data structure.
7127  *
7128  * This routine is invoked to free the driver's els sgl list and memory.
7129  **/
7130 static void
7131 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7132 {
7133         LIST_HEAD(sglq_list);
7134
7135         /* Retrieve all els sgls from driver list */
7136         spin_lock_irq(&phba->hbalock);
7137         spin_lock(&phba->sli4_hba.sgl_list_lock);
7138         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7139         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7140         spin_unlock_irq(&phba->hbalock);
7141
7142         /* Now free the sgl list */
7143         lpfc_free_sgl_list(phba, &sglq_list);
7144 }
7145
7146 /**
7147  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7148  * @phba: pointer to lpfc hba data structure.
7149  *
7150  * This routine is invoked to free the driver's nvmet sgl list and memory.
7151  **/
7152 static void
7153 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7154 {
7155         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7156         LIST_HEAD(sglq_list);
7157
7158         /* Retrieve all nvmet sgls from driver list */
7159         spin_lock_irq(&phba->hbalock);
7160         spin_lock(&phba->sli4_hba.sgl_list_lock);
7161         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7162         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7163         spin_unlock_irq(&phba->hbalock);
7164
7165         /* Now free the sgl list */
7166         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7167                 list_del(&sglq_entry->list);
7168                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7169                 kfree(sglq_entry);
7170         }
7171
7172         /* Update the nvmet_xri_cnt to reflect no current sgls.
7173          * The next initialization cycle sets the count and allocates
7174          * the sgls over again.
7175          */
7176         phba->sli4_hba.nvmet_xri_cnt = 0;
7177 }
7178
7179 /**
7180  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7181  * @phba: pointer to lpfc hba data structure.
7182  *
7183  * This routine is invoked to allocate the driver's active sgl memory.
7184  * This array will hold the sglq_entry's for active IOs.
7185  **/
7186 static int
7187 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7188 {
7189         int size;
7190         size = sizeof(struct lpfc_sglq *);
7191         size *= phba->sli4_hba.max_cfg_param.max_xri;
7192
7193         phba->sli4_hba.lpfc_sglq_active_list =
7194                 kzalloc(size, GFP_KERNEL);
7195         if (!phba->sli4_hba.lpfc_sglq_active_list)
7196                 return -ENOMEM;
7197         return 0;
7198 }
7199
7200 /**
7201  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7202  * @phba: pointer to lpfc hba data structure.
7203  *
7204  * This routine is invoked to walk through the array of active sglq entries
7205  * and free all of the resources.
7206  * This is just a place holder for now.
7207  **/
7208 static void
7209 lpfc_free_active_sgl(struct lpfc_hba *phba)
7210 {
7211         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7212 }
7213
7214 /**
7215  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7216  * @phba: pointer to lpfc hba data structure.
7217  *
7218  * This routine is invoked to allocate and initizlize the driver's sgl
7219  * list and set up the sgl xritag tag array accordingly.
7220  *
7221  **/
7222 static void
7223 lpfc_init_sgl_list(struct lpfc_hba *phba)
7224 {
7225         /* Initialize and populate the sglq list per host/VF. */
7226         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7227         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7228         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7229         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7230
7231         /* els xri-sgl book keeping */
7232         phba->sli4_hba.els_xri_cnt = 0;
7233
7234         /* nvme xri-buffer book keeping */
7235         phba->sli4_hba.io_xri_cnt = 0;
7236 }
7237
7238 /**
7239  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7240  * @phba: pointer to lpfc hba data structure.
7241  *
7242  * This routine is invoked to post rpi header templates to the
7243  * port for those SLI4 ports that do not support extents.  This routine
7244  * posts a PAGE_SIZE memory region to the port to hold up to
7245  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7246  * and should be called only when interrupts are disabled.
7247  *
7248  * Return codes
7249  *      0 - successful
7250  *      -ERROR - otherwise.
7251  **/
7252 int
7253 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7254 {
7255         int rc = 0;
7256         struct lpfc_rpi_hdr *rpi_hdr;
7257
7258         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7259         if (!phba->sli4_hba.rpi_hdrs_in_use)
7260                 return rc;
7261         if (phba->sli4_hba.extents_in_use)
7262                 return -EIO;
7263
7264         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7265         if (!rpi_hdr) {
7266                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7267                                 "0391 Error during rpi post operation\n");
7268                 lpfc_sli4_remove_rpis(phba);
7269                 rc = -ENODEV;
7270         }
7271
7272         return rc;
7273 }
7274
7275 /**
7276  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7277  * @phba: pointer to lpfc hba data structure.
7278  *
7279  * This routine is invoked to allocate a single 4KB memory region to
7280  * support rpis and stores them in the phba.  This single region
7281  * provides support for up to 64 rpis.  The region is used globally
7282  * by the device.
7283  *
7284  * Returns:
7285  *   A valid rpi hdr on success.
7286  *   A NULL pointer on any failure.
7287  **/
7288 struct lpfc_rpi_hdr *
7289 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7290 {
7291         uint16_t rpi_limit, curr_rpi_range;
7292         struct lpfc_dmabuf *dmabuf;
7293         struct lpfc_rpi_hdr *rpi_hdr;
7294
7295         /*
7296          * If the SLI4 port supports extents, posting the rpi header isn't
7297          * required.  Set the expected maximum count and let the actual value
7298          * get set when extents are fully allocated.
7299          */
7300         if (!phba->sli4_hba.rpi_hdrs_in_use)
7301                 return NULL;
7302         if (phba->sli4_hba.extents_in_use)
7303                 return NULL;
7304
7305         /* The limit on the logical index is just the max_rpi count. */
7306         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7307
7308         spin_lock_irq(&phba->hbalock);
7309         /*
7310          * Establish the starting RPI in this header block.  The starting
7311          * rpi is normalized to a zero base because the physical rpi is
7312          * port based.
7313          */
7314         curr_rpi_range = phba->sli4_hba.next_rpi;
7315         spin_unlock_irq(&phba->hbalock);
7316
7317         /* Reached full RPI range */
7318         if (curr_rpi_range == rpi_limit)
7319                 return NULL;
7320
7321         /*
7322          * First allocate the protocol header region for the port.  The
7323          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7324          */
7325         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7326         if (!dmabuf)
7327                 return NULL;
7328
7329         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7330                                           LPFC_HDR_TEMPLATE_SIZE,
7331                                           &dmabuf->phys, GFP_KERNEL);
7332         if (!dmabuf->virt) {
7333                 rpi_hdr = NULL;
7334                 goto err_free_dmabuf;
7335         }
7336
7337         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7338                 rpi_hdr = NULL;
7339                 goto err_free_coherent;
7340         }
7341
7342         /* Save the rpi header data for cleanup later. */
7343         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7344         if (!rpi_hdr)
7345                 goto err_free_coherent;
7346
7347         rpi_hdr->dmabuf = dmabuf;
7348         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7349         rpi_hdr->page_count = 1;
7350         spin_lock_irq(&phba->hbalock);
7351
7352         /* The rpi_hdr stores the logical index only. */
7353         rpi_hdr->start_rpi = curr_rpi_range;
7354         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7355         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7356
7357         spin_unlock_irq(&phba->hbalock);
7358         return rpi_hdr;
7359
7360  err_free_coherent:
7361         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7362                           dmabuf->virt, dmabuf->phys);
7363  err_free_dmabuf:
7364         kfree(dmabuf);
7365         return NULL;
7366 }
7367
7368 /**
7369  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7370  * @phba: pointer to lpfc hba data structure.
7371  *
7372  * This routine is invoked to remove all memory resources allocated
7373  * to support rpis for SLI4 ports not supporting extents. This routine
7374  * presumes the caller has released all rpis consumed by fabric or port
7375  * logins and is prepared to have the header pages removed.
7376  **/
7377 void
7378 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7379 {
7380         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7381
7382         if (!phba->sli4_hba.rpi_hdrs_in_use)
7383                 goto exit;
7384
7385         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7386                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7387                 list_del(&rpi_hdr->list);
7388                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7389                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7390                 kfree(rpi_hdr->dmabuf);
7391                 kfree(rpi_hdr);
7392         }
7393  exit:
7394         /* There are no rpis available to the port now. */
7395         phba->sli4_hba.next_rpi = 0;
7396 }
7397
7398 /**
7399  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7400  * @pdev: pointer to pci device data structure.
7401  *
7402  * This routine is invoked to allocate the driver hba data structure for an
7403  * HBA device. If the allocation is successful, the phba reference to the
7404  * PCI device data structure is set.
7405  *
7406  * Return codes
7407  *      pointer to @phba - successful
7408  *      NULL - error
7409  **/
7410 static struct lpfc_hba *
7411 lpfc_hba_alloc(struct pci_dev *pdev)
7412 {
7413         struct lpfc_hba *phba;
7414
7415         /* Allocate memory for HBA structure */
7416         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7417         if (!phba) {
7418                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7419                 return NULL;
7420         }
7421
7422         /* Set reference to PCI device in HBA structure */
7423         phba->pcidev = pdev;
7424
7425         /* Assign an unused board number */
7426         phba->brd_no = lpfc_get_instance();
7427         if (phba->brd_no < 0) {
7428                 kfree(phba);
7429                 return NULL;
7430         }
7431         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7432
7433         spin_lock_init(&phba->ct_ev_lock);
7434         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7435
7436         return phba;
7437 }
7438
7439 /**
7440  * lpfc_hba_free - Free driver hba data structure with a device.
7441  * @phba: pointer to lpfc hba data structure.
7442  *
7443  * This routine is invoked to free the driver hba data structure with an
7444  * HBA device.
7445  **/
7446 static void
7447 lpfc_hba_free(struct lpfc_hba *phba)
7448 {
7449         if (phba->sli_rev == LPFC_SLI_REV4)
7450                 kfree(phba->sli4_hba.hdwq);
7451
7452         /* Release the driver assigned board number */
7453         idr_remove(&lpfc_hba_index, phba->brd_no);
7454
7455         /* Free memory allocated with sli3 rings */
7456         kfree(phba->sli.sli3_ring);
7457         phba->sli.sli3_ring = NULL;
7458
7459         kfree(phba);
7460         return;
7461 }
7462
7463 /**
7464  * lpfc_create_shost - Create hba physical port with associated scsi host.
7465  * @phba: pointer to lpfc hba data structure.
7466  *
7467  * This routine is invoked to create HBA physical port and associate a SCSI
7468  * host with it.
7469  *
7470  * Return codes
7471  *      0 - successful
7472  *      other values - error
7473  **/
7474 static int
7475 lpfc_create_shost(struct lpfc_hba *phba)
7476 {
7477         struct lpfc_vport *vport;
7478         struct Scsi_Host  *shost;
7479
7480         /* Initialize HBA FC structure */
7481         phba->fc_edtov = FF_DEF_EDTOV;
7482         phba->fc_ratov = FF_DEF_RATOV;
7483         phba->fc_altov = FF_DEF_ALTOV;
7484         phba->fc_arbtov = FF_DEF_ARBTOV;
7485
7486         atomic_set(&phba->sdev_cnt, 0);
7487         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7488         if (!vport)
7489                 return -ENODEV;
7490
7491         shost = lpfc_shost_from_vport(vport);
7492         phba->pport = vport;
7493
7494         if (phba->nvmet_support) {
7495                 /* Only 1 vport (pport) will support NVME target */
7496                 if (phba->txrdy_payload_pool == NULL) {
7497                         phba->txrdy_payload_pool = dma_pool_create(
7498                                 "txrdy_pool", &phba->pcidev->dev,
7499                                 TXRDY_PAYLOAD_LEN, 16, 0);
7500                         if (phba->txrdy_payload_pool) {
7501                                 phba->targetport = NULL;
7502                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7503                                 lpfc_printf_log(phba, KERN_INFO,
7504                                                 LOG_INIT | LOG_NVME_DISC,
7505                                                 "6076 NVME Target Found\n");
7506                         }
7507                 }
7508         }
7509
7510         lpfc_debugfs_initialize(vport);
7511         /* Put reference to SCSI host to driver's device private data */
7512         pci_set_drvdata(phba->pcidev, shost);
7513
7514         /*
7515          * At this point we are fully registered with PSA. In addition,
7516          * any initial discovery should be completed.
7517          */
7518         vport->load_flag |= FC_ALLOW_FDMI;
7519         if (phba->cfg_enable_SmartSAN ||
7520             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7521
7522                 /* Setup appropriate attribute masks */
7523                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7524                 if (phba->cfg_enable_SmartSAN)
7525                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7526                 else
7527                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7528         }
7529         return 0;
7530 }
7531
7532 /**
7533  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7534  * @phba: pointer to lpfc hba data structure.
7535  *
7536  * This routine is invoked to destroy HBA physical port and the associated
7537  * SCSI host.
7538  **/
7539 static void
7540 lpfc_destroy_shost(struct lpfc_hba *phba)
7541 {
7542         struct lpfc_vport *vport = phba->pport;
7543
7544         /* Destroy physical port that associated with the SCSI host */
7545         destroy_port(vport);
7546
7547         return;
7548 }
7549
7550 /**
7551  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7552  * @phba: pointer to lpfc hba data structure.
7553  * @shost: the shost to be used to detect Block guard settings.
7554  *
7555  * This routine sets up the local Block guard protocol settings for @shost.
7556  * This routine also allocates memory for debugging bg buffers.
7557  **/
7558 static void
7559 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7560 {
7561         uint32_t old_mask;
7562         uint32_t old_guard;
7563
7564         int pagecnt = 10;
7565         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7566                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7567                                 "1478 Registering BlockGuard with the "
7568                                 "SCSI layer\n");
7569
7570                 old_mask = phba->cfg_prot_mask;
7571                 old_guard = phba->cfg_prot_guard;
7572
7573                 /* Only allow supported values */
7574                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7575                         SHOST_DIX_TYPE0_PROTECTION |
7576                         SHOST_DIX_TYPE1_PROTECTION);
7577                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7578                                          SHOST_DIX_GUARD_CRC);
7579
7580                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7581                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7582                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7583
7584                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7585                         if ((old_mask != phba->cfg_prot_mask) ||
7586                                 (old_guard != phba->cfg_prot_guard))
7587                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7588                                         "1475 Registering BlockGuard with the "
7589                                         "SCSI layer: mask %d  guard %d\n",
7590                                         phba->cfg_prot_mask,
7591                                         phba->cfg_prot_guard);
7592
7593                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7594                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7595                 } else
7596                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7597                                 "1479 Not Registering BlockGuard with the SCSI "
7598                                 "layer, Bad protection parameters: %d %d\n",
7599                                 old_mask, old_guard);
7600         }
7601
7602         if (!_dump_buf_data) {
7603                 while (pagecnt) {
7604                         spin_lock_init(&_dump_buf_lock);
7605                         _dump_buf_data =
7606                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7607                         if (_dump_buf_data) {
7608                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7609                                         "9043 BLKGRD: allocated %d pages for "
7610                                        "_dump_buf_data at 0x%p\n",
7611                                        (1 << pagecnt), _dump_buf_data);
7612                                 _dump_buf_data_order = pagecnt;
7613                                 memset(_dump_buf_data, 0,
7614                                        ((1 << PAGE_SHIFT) << pagecnt));
7615                                 break;
7616                         } else
7617                                 --pagecnt;
7618                 }
7619                 if (!_dump_buf_data_order)
7620                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7621                                 "9044 BLKGRD: ERROR unable to allocate "
7622                                "memory for hexdump\n");
7623         } else
7624                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7625                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7626                        "\n", _dump_buf_data);
7627         if (!_dump_buf_dif) {
7628                 while (pagecnt) {
7629                         _dump_buf_dif =
7630                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7631                         if (_dump_buf_dif) {
7632                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7633                                         "9046 BLKGRD: allocated %d pages for "
7634                                        "_dump_buf_dif at 0x%p\n",
7635                                        (1 << pagecnt), _dump_buf_dif);
7636                                 _dump_buf_dif_order = pagecnt;
7637                                 memset(_dump_buf_dif, 0,
7638                                        ((1 << PAGE_SHIFT) << pagecnt));
7639                                 break;
7640                         } else
7641                                 --pagecnt;
7642                 }
7643                 if (!_dump_buf_dif_order)
7644                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7645                         "9047 BLKGRD: ERROR unable to allocate "
7646                                "memory for hexdump\n");
7647         } else
7648                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7649                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7650                        _dump_buf_dif);
7651 }
7652
7653 /**
7654  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7655  * @phba: pointer to lpfc hba data structure.
7656  *
7657  * This routine is invoked to perform all the necessary post initialization
7658  * setup for the device.
7659  **/
7660 static void
7661 lpfc_post_init_setup(struct lpfc_hba *phba)
7662 {
7663         struct Scsi_Host  *shost;
7664         struct lpfc_adapter_event_header adapter_event;
7665
7666         /* Get the default values for Model Name and Description */
7667         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7668
7669         /*
7670          * hba setup may have changed the hba_queue_depth so we need to
7671          * adjust the value of can_queue.
7672          */
7673         shost = pci_get_drvdata(phba->pcidev);
7674         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7675
7676         lpfc_host_attrib_init(shost);
7677
7678         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7679                 spin_lock_irq(shost->host_lock);
7680                 lpfc_poll_start_timer(phba);
7681                 spin_unlock_irq(shost->host_lock);
7682         }
7683
7684         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7685                         "0428 Perform SCSI scan\n");
7686         /* Send board arrival event to upper layer */
7687         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7688         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7689         fc_host_post_vendor_event(shost, fc_get_event_number(),
7690                                   sizeof(adapter_event),
7691                                   (char *) &adapter_event,
7692                                   LPFC_NL_VENDOR_ID);
7693         return;
7694 }
7695
7696 /**
7697  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7698  * @phba: pointer to lpfc hba data structure.
7699  *
7700  * This routine is invoked to set up the PCI device memory space for device
7701  * with SLI-3 interface spec.
7702  *
7703  * Return codes
7704  *      0 - successful
7705  *      other values - error
7706  **/
7707 static int
7708 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7709 {
7710         struct pci_dev *pdev = phba->pcidev;
7711         unsigned long bar0map_len, bar2map_len;
7712         int i, hbq_count;
7713         void *ptr;
7714         int error;
7715
7716         if (!pdev)
7717                 return -ENODEV;
7718
7719         /* Set the device DMA mask size */
7720         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7721         if (error)
7722                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7723         if (error)
7724                 return error;
7725         error = -ENODEV;
7726
7727         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7728          * required by each mapping.
7729          */
7730         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7731         bar0map_len = pci_resource_len(pdev, 0);
7732
7733         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7734         bar2map_len = pci_resource_len(pdev, 2);
7735
7736         /* Map HBA SLIM to a kernel virtual address. */
7737         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7738         if (!phba->slim_memmap_p) {
7739                 dev_printk(KERN_ERR, &pdev->dev,
7740                            "ioremap failed for SLIM memory.\n");
7741                 goto out;
7742         }
7743
7744         /* Map HBA Control Registers to a kernel virtual address. */
7745         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7746         if (!phba->ctrl_regs_memmap_p) {
7747                 dev_printk(KERN_ERR, &pdev->dev,
7748                            "ioremap failed for HBA control registers.\n");
7749                 goto out_iounmap_slim;
7750         }
7751
7752         /* Allocate memory for SLI-2 structures */
7753         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7754                                                &phba->slim2p.phys, GFP_KERNEL);
7755         if (!phba->slim2p.virt)
7756                 goto out_iounmap;
7757
7758         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7759         phba->mbox_ext = (phba->slim2p.virt +
7760                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7761         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7762         phba->IOCBs = (phba->slim2p.virt +
7763                        offsetof(struct lpfc_sli2_slim, IOCBs));
7764
7765         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7766                                                  lpfc_sli_hbq_size(),
7767                                                  &phba->hbqslimp.phys,
7768                                                  GFP_KERNEL);
7769         if (!phba->hbqslimp.virt)
7770                 goto out_free_slim;
7771
7772         hbq_count = lpfc_sli_hbq_count();
7773         ptr = phba->hbqslimp.virt;
7774         for (i = 0; i < hbq_count; ++i) {
7775                 phba->hbqs[i].hbq_virt = ptr;
7776                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7777                 ptr += (lpfc_hbq_defs[i]->entry_count *
7778                         sizeof(struct lpfc_hbq_entry));
7779         }
7780         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7781         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7782
7783         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7784
7785         phba->MBslimaddr = phba->slim_memmap_p;
7786         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7787         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7788         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7789         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7790
7791         return 0;
7792
7793 out_free_slim:
7794         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7795                           phba->slim2p.virt, phba->slim2p.phys);
7796 out_iounmap:
7797         iounmap(phba->ctrl_regs_memmap_p);
7798 out_iounmap_slim:
7799         iounmap(phba->slim_memmap_p);
7800 out:
7801         return error;
7802 }
7803
7804 /**
7805  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7806  * @phba: pointer to lpfc hba data structure.
7807  *
7808  * This routine is invoked to unset the PCI device memory space for device
7809  * with SLI-3 interface spec.
7810  **/
7811 static void
7812 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7813 {
7814         struct pci_dev *pdev;
7815
7816         /* Obtain PCI device reference */
7817         if (!phba->pcidev)
7818                 return;
7819         else
7820                 pdev = phba->pcidev;
7821
7822         /* Free coherent DMA memory allocated */
7823         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7824                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7825         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7826                           phba->slim2p.virt, phba->slim2p.phys);
7827
7828         /* I/O memory unmap */
7829         iounmap(phba->ctrl_regs_memmap_p);
7830         iounmap(phba->slim_memmap_p);
7831
7832         return;
7833 }
7834
7835 /**
7836  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7837  * @phba: pointer to lpfc hba data structure.
7838  *
7839  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7840  * done and check status.
7841  *
7842  * Return 0 if successful, otherwise -ENODEV.
7843  **/
7844 int
7845 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7846 {
7847         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7848         struct lpfc_register reg_data;
7849         int i, port_error = 0;
7850         uint32_t if_type;
7851
7852         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7853         memset(&reg_data, 0, sizeof(reg_data));
7854         if (!phba->sli4_hba.PSMPHRregaddr)
7855                 return -ENODEV;
7856
7857         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7858         for (i = 0; i < 3000; i++) {
7859                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7860                         &portsmphr_reg.word0) ||
7861                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7862                         /* Port has a fatal POST error, break out */
7863                         port_error = -ENODEV;
7864                         break;
7865                 }
7866                 if (LPFC_POST_STAGE_PORT_READY ==
7867                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7868                         break;
7869                 msleep(10);
7870         }
7871
7872         /*
7873          * If there was a port error during POST, then don't proceed with
7874          * other register reads as the data may not be valid.  Just exit.
7875          */
7876         if (port_error) {
7877                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7878                         "1408 Port Failed POST - portsmphr=0x%x, "
7879                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7880                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7881                         portsmphr_reg.word0,
7882                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7883                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7884                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7885                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7886                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7887                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7888                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7889                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7890         } else {
7891                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7892                                 "2534 Device Info: SLIFamily=0x%x, "
7893                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7894                                 "SLIHint_2=0x%x, FT=0x%x\n",
7895                                 bf_get(lpfc_sli_intf_sli_family,
7896                                        &phba->sli4_hba.sli_intf),
7897                                 bf_get(lpfc_sli_intf_slirev,
7898                                        &phba->sli4_hba.sli_intf),
7899                                 bf_get(lpfc_sli_intf_if_type,
7900                                        &phba->sli4_hba.sli_intf),
7901                                 bf_get(lpfc_sli_intf_sli_hint1,
7902                                        &phba->sli4_hba.sli_intf),
7903                                 bf_get(lpfc_sli_intf_sli_hint2,
7904                                        &phba->sli4_hba.sli_intf),
7905                                 bf_get(lpfc_sli_intf_func_type,
7906                                        &phba->sli4_hba.sli_intf));
7907                 /*
7908                  * Check for other Port errors during the initialization
7909                  * process.  Fail the load if the port did not come up
7910                  * correctly.
7911                  */
7912                 if_type = bf_get(lpfc_sli_intf_if_type,
7913                                  &phba->sli4_hba.sli_intf);
7914                 switch (if_type) {
7915                 case LPFC_SLI_INTF_IF_TYPE_0:
7916                         phba->sli4_hba.ue_mask_lo =
7917                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7918                         phba->sli4_hba.ue_mask_hi =
7919                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7920                         uerrlo_reg.word0 =
7921                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7922                         uerrhi_reg.word0 =
7923                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7924                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7925                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7926                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7927                                                 "1422 Unrecoverable Error "
7928                                                 "Detected during POST "
7929                                                 "uerr_lo_reg=0x%x, "
7930                                                 "uerr_hi_reg=0x%x, "
7931                                                 "ue_mask_lo_reg=0x%x, "
7932                                                 "ue_mask_hi_reg=0x%x\n",
7933                                                 uerrlo_reg.word0,
7934                                                 uerrhi_reg.word0,
7935                                                 phba->sli4_hba.ue_mask_lo,
7936                                                 phba->sli4_hba.ue_mask_hi);
7937                                 port_error = -ENODEV;
7938                         }
7939                         break;
7940                 case LPFC_SLI_INTF_IF_TYPE_2:
7941                 case LPFC_SLI_INTF_IF_TYPE_6:
7942                         /* Final checks.  The port status should be clean. */
7943                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7944                                 &reg_data.word0) ||
7945                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7946                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7947                                 phba->work_status[0] =
7948                                         readl(phba->sli4_hba.u.if_type2.
7949                                               ERR1regaddr);
7950                                 phba->work_status[1] =
7951                                         readl(phba->sli4_hba.u.if_type2.
7952                                               ERR2regaddr);
7953                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7954                                         "2888 Unrecoverable port error "
7955                                         "following POST: port status reg "
7956                                         "0x%x, port_smphr reg 0x%x, "
7957                                         "error 1=0x%x, error 2=0x%x\n",
7958                                         reg_data.word0,
7959                                         portsmphr_reg.word0,
7960                                         phba->work_status[0],
7961                                         phba->work_status[1]);
7962                                 port_error = -ENODEV;
7963                         }
7964                         break;
7965                 case LPFC_SLI_INTF_IF_TYPE_1:
7966                 default:
7967                         break;
7968                 }
7969         }
7970         return port_error;
7971 }
7972
7973 /**
7974  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7975  * @phba: pointer to lpfc hba data structure.
7976  * @if_type:  The SLI4 interface type getting configured.
7977  *
7978  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7979  * memory map.
7980  **/
7981 static void
7982 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7983 {
7984         switch (if_type) {
7985         case LPFC_SLI_INTF_IF_TYPE_0:
7986                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7987                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7988                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7989                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7990                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7991                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7992                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7993                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7994                 phba->sli4_hba.SLIINTFregaddr =
7995                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7996                 break;
7997         case LPFC_SLI_INTF_IF_TYPE_2:
7998                 phba->sli4_hba.u.if_type2.EQDregaddr =
7999                         phba->sli4_hba.conf_regs_memmap_p +
8000                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8001                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8002                         phba->sli4_hba.conf_regs_memmap_p +
8003                                                 LPFC_CTL_PORT_ER1_OFFSET;
8004                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8005                         phba->sli4_hba.conf_regs_memmap_p +
8006                                                 LPFC_CTL_PORT_ER2_OFFSET;
8007                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8008                         phba->sli4_hba.conf_regs_memmap_p +
8009                                                 LPFC_CTL_PORT_CTL_OFFSET;
8010                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8011                         phba->sli4_hba.conf_regs_memmap_p +
8012                                                 LPFC_CTL_PORT_STA_OFFSET;
8013                 phba->sli4_hba.SLIINTFregaddr =
8014                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8015                 phba->sli4_hba.PSMPHRregaddr =
8016                         phba->sli4_hba.conf_regs_memmap_p +
8017                                                 LPFC_CTL_PORT_SEM_OFFSET;
8018                 phba->sli4_hba.RQDBregaddr =
8019                         phba->sli4_hba.conf_regs_memmap_p +
8020                                                 LPFC_ULP0_RQ_DOORBELL;
8021                 phba->sli4_hba.WQDBregaddr =
8022                         phba->sli4_hba.conf_regs_memmap_p +
8023                                                 LPFC_ULP0_WQ_DOORBELL;
8024                 phba->sli4_hba.CQDBregaddr =
8025                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8026                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8027                 phba->sli4_hba.MQDBregaddr =
8028                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8029                 phba->sli4_hba.BMBXregaddr =
8030                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8031                 break;
8032         case LPFC_SLI_INTF_IF_TYPE_6:
8033                 phba->sli4_hba.u.if_type2.EQDregaddr =
8034                         phba->sli4_hba.conf_regs_memmap_p +
8035                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8036                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8037                         phba->sli4_hba.conf_regs_memmap_p +
8038                                                 LPFC_CTL_PORT_ER1_OFFSET;
8039                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8040                         phba->sli4_hba.conf_regs_memmap_p +
8041                                                 LPFC_CTL_PORT_ER2_OFFSET;
8042                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8043                         phba->sli4_hba.conf_regs_memmap_p +
8044                                                 LPFC_CTL_PORT_CTL_OFFSET;
8045                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8046                         phba->sli4_hba.conf_regs_memmap_p +
8047                                                 LPFC_CTL_PORT_STA_OFFSET;
8048                 phba->sli4_hba.PSMPHRregaddr =
8049                         phba->sli4_hba.conf_regs_memmap_p +
8050                                                 LPFC_CTL_PORT_SEM_OFFSET;
8051                 phba->sli4_hba.BMBXregaddr =
8052                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8053                 break;
8054         case LPFC_SLI_INTF_IF_TYPE_1:
8055         default:
8056                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8057                            "FATAL - unsupported SLI4 interface type - %d\n",
8058                            if_type);
8059                 break;
8060         }
8061 }
8062
8063 /**
8064  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8065  * @phba: pointer to lpfc hba data structure.
8066  *
8067  * This routine is invoked to set up SLI4 BAR1 register memory map.
8068  **/
8069 static void
8070 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8071 {
8072         switch (if_type) {
8073         case LPFC_SLI_INTF_IF_TYPE_0:
8074                 phba->sli4_hba.PSMPHRregaddr =
8075                         phba->sli4_hba.ctrl_regs_memmap_p +
8076                         LPFC_SLIPORT_IF0_SMPHR;
8077                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8078                         LPFC_HST_ISR0;
8079                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8080                         LPFC_HST_IMR0;
8081                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8082                         LPFC_HST_ISCR0;
8083                 break;
8084         case LPFC_SLI_INTF_IF_TYPE_6:
8085                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8086                         LPFC_IF6_RQ_DOORBELL;
8087                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8088                         LPFC_IF6_WQ_DOORBELL;
8089                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8090                         LPFC_IF6_CQ_DOORBELL;
8091                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8092                         LPFC_IF6_EQ_DOORBELL;
8093                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8094                         LPFC_IF6_MQ_DOORBELL;
8095                 break;
8096         case LPFC_SLI_INTF_IF_TYPE_2:
8097         case LPFC_SLI_INTF_IF_TYPE_1:
8098         default:
8099                 dev_err(&phba->pcidev->dev,
8100                            "FATAL - unsupported SLI4 interface type - %d\n",
8101                            if_type);
8102                 break;
8103         }
8104 }
8105
8106 /**
8107  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8108  * @phba: pointer to lpfc hba data structure.
8109  * @vf: virtual function number
8110  *
8111  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8112  * based on the given viftual function number, @vf.
8113  *
8114  * Return 0 if successful, otherwise -ENODEV.
8115  **/
8116 static int
8117 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8118 {
8119         if (vf > LPFC_VIR_FUNC_MAX)
8120                 return -ENODEV;
8121
8122         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8123                                 vf * LPFC_VFR_PAGE_SIZE +
8124                                         LPFC_ULP0_RQ_DOORBELL);
8125         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8126                                 vf * LPFC_VFR_PAGE_SIZE +
8127                                         LPFC_ULP0_WQ_DOORBELL);
8128         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8129                                 vf * LPFC_VFR_PAGE_SIZE +
8130                                         LPFC_EQCQ_DOORBELL);
8131         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8132         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8133                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8134         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8135                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8136         return 0;
8137 }
8138
8139 /**
8140  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8141  * @phba: pointer to lpfc hba data structure.
8142  *
8143  * This routine is invoked to create the bootstrap mailbox
8144  * region consistent with the SLI-4 interface spec.  This
8145  * routine allocates all memory necessary to communicate
8146  * mailbox commands to the port and sets up all alignment
8147  * needs.  No locks are expected to be held when calling
8148  * this routine.
8149  *
8150  * Return codes
8151  *      0 - successful
8152  *      -ENOMEM - could not allocated memory.
8153  **/
8154 static int
8155 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8156 {
8157         uint32_t bmbx_size;
8158         struct lpfc_dmabuf *dmabuf;
8159         struct dma_address *dma_address;
8160         uint32_t pa_addr;
8161         uint64_t phys_addr;
8162
8163         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8164         if (!dmabuf)
8165                 return -ENOMEM;
8166
8167         /*
8168          * The bootstrap mailbox region is comprised of 2 parts
8169          * plus an alignment restriction of 16 bytes.
8170          */
8171         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8172         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8173                                           &dmabuf->phys, GFP_KERNEL);
8174         if (!dmabuf->virt) {
8175                 kfree(dmabuf);
8176                 return -ENOMEM;
8177         }
8178
8179         /*
8180          * Initialize the bootstrap mailbox pointers now so that the register
8181          * operations are simple later.  The mailbox dma address is required
8182          * to be 16-byte aligned.  Also align the virtual memory as each
8183          * maibox is copied into the bmbx mailbox region before issuing the
8184          * command to the port.
8185          */
8186         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8187         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8188
8189         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8190                                               LPFC_ALIGN_16_BYTE);
8191         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8192                                               LPFC_ALIGN_16_BYTE);
8193
8194         /*
8195          * Set the high and low physical addresses now.  The SLI4 alignment
8196          * requirement is 16 bytes and the mailbox is posted to the port
8197          * as two 30-bit addresses.  The other data is a bit marking whether
8198          * the 30-bit address is the high or low address.
8199          * Upcast bmbx aphys to 64bits so shift instruction compiles
8200          * clean on 32 bit machines.
8201          */
8202         dma_address = &phba->sli4_hba.bmbx.dma_address;
8203         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8204         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8205         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8206                                            LPFC_BMBX_BIT1_ADDR_HI);
8207
8208         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8209         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8210                                            LPFC_BMBX_BIT1_ADDR_LO);
8211         return 0;
8212 }
8213
8214 /**
8215  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8216  * @phba: pointer to lpfc hba data structure.
8217  *
8218  * This routine is invoked to teardown the bootstrap mailbox
8219  * region and release all host resources. This routine requires
8220  * the caller to ensure all mailbox commands recovered, no
8221  * additional mailbox comands are sent, and interrupts are disabled
8222  * before calling this routine.
8223  *
8224  **/
8225 static void
8226 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8227 {
8228         dma_free_coherent(&phba->pcidev->dev,
8229                           phba->sli4_hba.bmbx.bmbx_size,
8230                           phba->sli4_hba.bmbx.dmabuf->virt,
8231                           phba->sli4_hba.bmbx.dmabuf->phys);
8232
8233         kfree(phba->sli4_hba.bmbx.dmabuf);
8234         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8235 }
8236
8237 /**
8238  * lpfc_sli4_read_config - Get the config parameters.
8239  * @phba: pointer to lpfc hba data structure.
8240  *
8241  * This routine is invoked to read the configuration parameters from the HBA.
8242  * The configuration parameters are used to set the base and maximum values
8243  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8244  * allocation for the port.
8245  *
8246  * Return codes
8247  *      0 - successful
8248  *      -ENOMEM - No available memory
8249  *      -EIO - The mailbox failed to complete successfully.
8250  **/
8251 int
8252 lpfc_sli4_read_config(struct lpfc_hba *phba)
8253 {
8254         LPFC_MBOXQ_t *pmb;
8255         struct lpfc_mbx_read_config *rd_config;
8256         union  lpfc_sli4_cfg_shdr *shdr;
8257         uint32_t shdr_status, shdr_add_status;
8258         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8259         struct lpfc_rsrc_desc_fcfcoe *desc;
8260         char *pdesc_0;
8261         uint16_t forced_link_speed;
8262         uint32_t if_type, qmin;
8263         int length, i, rc = 0, rc2;
8264
8265         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8266         if (!pmb) {
8267                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8268                                 "2011 Unable to allocate memory for issuing "
8269                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8270                 return -ENOMEM;
8271         }
8272
8273         lpfc_read_config(phba, pmb);
8274
8275         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8276         if (rc != MBX_SUCCESS) {
8277                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8278                         "2012 Mailbox failed , mbxCmd x%x "
8279                         "READ_CONFIG, mbxStatus x%x\n",
8280                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8281                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8282                 rc = -EIO;
8283         } else {
8284                 rd_config = &pmb->u.mqe.un.rd_config;
8285                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8286                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8287                         phba->sli4_hba.lnk_info.lnk_tp =
8288                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8289                         phba->sli4_hba.lnk_info.lnk_no =
8290                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8291                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8292                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8293                                         phba->sli4_hba.lnk_info.lnk_tp,
8294                                         phba->sli4_hba.lnk_info.lnk_no);
8295                 } else
8296                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8297                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8298                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8299                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8300                         phba->bbcredit_support = 1;
8301                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8302                 }
8303
8304                 phba->sli4_hba.conf_trunk =
8305                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8306                 phba->sli4_hba.extents_in_use =
8307                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8308                 phba->sli4_hba.max_cfg_param.max_xri =
8309                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8310                 phba->sli4_hba.max_cfg_param.xri_base =
8311                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8312                 phba->sli4_hba.max_cfg_param.max_vpi =
8313                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8314                 /* Limit the max we support */
8315                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8316                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8317                 phba->sli4_hba.max_cfg_param.vpi_base =
8318                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8319                 phba->sli4_hba.max_cfg_param.max_rpi =
8320                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8321                 phba->sli4_hba.max_cfg_param.rpi_base =
8322                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8323                 phba->sli4_hba.max_cfg_param.max_vfi =
8324                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8325                 phba->sli4_hba.max_cfg_param.vfi_base =
8326                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8327                 phba->sli4_hba.max_cfg_param.max_fcfi =
8328                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8329                 phba->sli4_hba.max_cfg_param.max_eq =
8330                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8331                 phba->sli4_hba.max_cfg_param.max_rq =
8332                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8333                 phba->sli4_hba.max_cfg_param.max_wq =
8334                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8335                 phba->sli4_hba.max_cfg_param.max_cq =
8336                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8337                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8338                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8339                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8340                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8341                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8342                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8343                 phba->max_vports = phba->max_vpi;
8344                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8345                                 "2003 cfg params Extents? %d "
8346                                 "XRI(B:%d M:%d), "
8347                                 "VPI(B:%d M:%d) "
8348                                 "VFI(B:%d M:%d) "
8349                                 "RPI(B:%d M:%d) "
8350                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8351                                 phba->sli4_hba.extents_in_use,
8352                                 phba->sli4_hba.max_cfg_param.xri_base,
8353                                 phba->sli4_hba.max_cfg_param.max_xri,
8354                                 phba->sli4_hba.max_cfg_param.vpi_base,
8355                                 phba->sli4_hba.max_cfg_param.max_vpi,
8356                                 phba->sli4_hba.max_cfg_param.vfi_base,
8357                                 phba->sli4_hba.max_cfg_param.max_vfi,
8358                                 phba->sli4_hba.max_cfg_param.rpi_base,
8359                                 phba->sli4_hba.max_cfg_param.max_rpi,
8360                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8361                                 phba->sli4_hba.max_cfg_param.max_eq,
8362                                 phba->sli4_hba.max_cfg_param.max_cq,
8363                                 phba->sli4_hba.max_cfg_param.max_wq,
8364                                 phba->sli4_hba.max_cfg_param.max_rq);
8365
8366                 /*
8367                  * Calculate queue resources based on how
8368                  * many WQ/CQ/EQs are available.
8369                  */
8370                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8371                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8372                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8373                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8374                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8375                 /*
8376                  * Whats left after this can go toward NVME / FCP.
8377                  * The minus 4 accounts for ELS, NVME LS, MBOX
8378                  * plus one extra. When configured for
8379                  * NVMET, FCP io channel WQs are not created.
8380                  */
8381                 qmin -= 4;
8382
8383                 /* If NVME is configured, double the number of CQ/WQs needed */
8384                 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
8385                     !phba->nvmet_support)
8386                         qmin /= 2;
8387
8388                 /* Check to see if there is enough for NVME */
8389                 if ((phba->cfg_irq_chann > qmin) ||
8390                     (phba->cfg_hdw_queue > qmin)) {
8391                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8392                                         "2005 Reducing Queues: "
8393                                         "WQ %d CQ %d EQ %d: min %d: "
8394                                         "IRQ %d HDWQ %d\n",
8395                                         phba->sli4_hba.max_cfg_param.max_wq,
8396                                         phba->sli4_hba.max_cfg_param.max_cq,
8397                                         phba->sli4_hba.max_cfg_param.max_eq,
8398                                         qmin, phba->cfg_irq_chann,
8399                                         phba->cfg_hdw_queue);
8400
8401                         if (phba->cfg_irq_chann > qmin)
8402                                 phba->cfg_irq_chann = qmin;
8403                         if (phba->cfg_hdw_queue > qmin)
8404                                 phba->cfg_hdw_queue = qmin;
8405                 }
8406         }
8407
8408         if (rc)
8409                 goto read_cfg_out;
8410
8411         /* Update link speed if forced link speed is supported */
8412         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8413         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8414                 forced_link_speed =
8415                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8416                 if (forced_link_speed) {
8417                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8418
8419                         switch (forced_link_speed) {
8420                         case LINK_SPEED_1G:
8421                                 phba->cfg_link_speed =
8422                                         LPFC_USER_LINK_SPEED_1G;
8423                                 break;
8424                         case LINK_SPEED_2G:
8425                                 phba->cfg_link_speed =
8426                                         LPFC_USER_LINK_SPEED_2G;
8427                                 break;
8428                         case LINK_SPEED_4G:
8429                                 phba->cfg_link_speed =
8430                                         LPFC_USER_LINK_SPEED_4G;
8431                                 break;
8432                         case LINK_SPEED_8G:
8433                                 phba->cfg_link_speed =
8434                                         LPFC_USER_LINK_SPEED_8G;
8435                                 break;
8436                         case LINK_SPEED_10G:
8437                                 phba->cfg_link_speed =
8438                                         LPFC_USER_LINK_SPEED_10G;
8439                                 break;
8440                         case LINK_SPEED_16G:
8441                                 phba->cfg_link_speed =
8442                                         LPFC_USER_LINK_SPEED_16G;
8443                                 break;
8444                         case LINK_SPEED_32G:
8445                                 phba->cfg_link_speed =
8446                                         LPFC_USER_LINK_SPEED_32G;
8447                                 break;
8448                         case LINK_SPEED_64G:
8449                                 phba->cfg_link_speed =
8450                                         LPFC_USER_LINK_SPEED_64G;
8451                                 break;
8452                         case 0xffff:
8453                                 phba->cfg_link_speed =
8454                                         LPFC_USER_LINK_SPEED_AUTO;
8455                                 break;
8456                         default:
8457                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8458                                                 "0047 Unrecognized link "
8459                                                 "speed : %d\n",
8460                                                 forced_link_speed);
8461                                 phba->cfg_link_speed =
8462                                         LPFC_USER_LINK_SPEED_AUTO;
8463                         }
8464                 }
8465         }
8466
8467         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8468         length = phba->sli4_hba.max_cfg_param.max_xri -
8469                         lpfc_sli4_get_els_iocb_cnt(phba);
8470         if (phba->cfg_hba_queue_depth > length) {
8471                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8472                                 "3361 HBA queue depth changed from %d to %d\n",
8473                                 phba->cfg_hba_queue_depth, length);
8474                 phba->cfg_hba_queue_depth = length;
8475         }
8476
8477         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8478             LPFC_SLI_INTF_IF_TYPE_2)
8479                 goto read_cfg_out;
8480
8481         /* get the pf# and vf# for SLI4 if_type 2 port */
8482         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8483                   sizeof(struct lpfc_sli4_cfg_mhdr));
8484         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8485                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8486                          length, LPFC_SLI4_MBX_EMBED);
8487
8488         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8489         shdr = (union lpfc_sli4_cfg_shdr *)
8490                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8491         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8492         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8493         if (rc2 || shdr_status || shdr_add_status) {
8494                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8495                                 "3026 Mailbox failed , mbxCmd x%x "
8496                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8497                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8498                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8499                 goto read_cfg_out;
8500         }
8501
8502         /* search for fc_fcoe resrouce descriptor */
8503         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8504
8505         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8506         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8507         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8508         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8509                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8510         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8511                 goto read_cfg_out;
8512
8513         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8514                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8515                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8516                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8517                         phba->sli4_hba.iov.pf_number =
8518                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8519                         phba->sli4_hba.iov.vf_number =
8520                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8521                         break;
8522                 }
8523         }
8524
8525         if (i < LPFC_RSRC_DESC_MAX_NUM)
8526                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8527                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8528                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8529                                 phba->sli4_hba.iov.vf_number);
8530         else
8531                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8532                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8533                                 "Resource Descriptor:x%x\n",
8534                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8535
8536 read_cfg_out:
8537         mempool_free(pmb, phba->mbox_mem_pool);
8538         return rc;
8539 }
8540
8541 /**
8542  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8543  * @phba: pointer to lpfc hba data structure.
8544  *
8545  * This routine is invoked to setup the port-side endian order when
8546  * the port if_type is 0.  This routine has no function for other
8547  * if_types.
8548  *
8549  * Return codes
8550  *      0 - successful
8551  *      -ENOMEM - No available memory
8552  *      -EIO - The mailbox failed to complete successfully.
8553  **/
8554 static int
8555 lpfc_setup_endian_order(struct lpfc_hba *phba)
8556 {
8557         LPFC_MBOXQ_t *mboxq;
8558         uint32_t if_type, rc = 0;
8559         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8560                                       HOST_ENDIAN_HIGH_WORD1};
8561
8562         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8563         switch (if_type) {
8564         case LPFC_SLI_INTF_IF_TYPE_0:
8565                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8566                                                        GFP_KERNEL);
8567                 if (!mboxq) {
8568                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8569                                         "0492 Unable to allocate memory for "
8570                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8571                                         "command\n");
8572                         return -ENOMEM;
8573                 }
8574
8575                 /*
8576                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8577                  * two words to contain special data values and no other data.
8578                  */
8579                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8580                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8581                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8582                 if (rc != MBX_SUCCESS) {
8583                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8584                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8585                                         "failed with status x%x\n",
8586                                         rc);
8587                         rc = -EIO;
8588                 }
8589                 mempool_free(mboxq, phba->mbox_mem_pool);
8590                 break;
8591         case LPFC_SLI_INTF_IF_TYPE_6:
8592         case LPFC_SLI_INTF_IF_TYPE_2:
8593         case LPFC_SLI_INTF_IF_TYPE_1:
8594         default:
8595                 break;
8596         }
8597         return rc;
8598 }
8599
8600 /**
8601  * lpfc_sli4_queue_verify - Verify and update EQ counts
8602  * @phba: pointer to lpfc hba data structure.
8603  *
8604  * This routine is invoked to check the user settable queue counts for EQs.
8605  * After this routine is called the counts will be set to valid values that
8606  * adhere to the constraints of the system's interrupt vectors and the port's
8607  * queue resources.
8608  *
8609  * Return codes
8610  *      0 - successful
8611  *      -ENOMEM - No available memory
8612  **/
8613 static int
8614 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8615 {
8616         /*
8617          * Sanity check for configured queue parameters against the run-time
8618          * device parameters
8619          */
8620
8621         if (phba->nvmet_support) {
8622                 if (phba->cfg_irq_chann < phba->cfg_nvmet_mrq)
8623                         phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
8624                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8625                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8626         }
8627
8628         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8629                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8630                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8631                         phba->cfg_nvmet_mrq);
8632
8633         /* Get EQ depth from module parameter, fake the default for now */
8634         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8635         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8636
8637         /* Get CQ depth from module parameter, fake the default for now */
8638         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8639         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8640         return 0;
8641 }
8642
8643 static int
8644 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8645 {
8646         struct lpfc_queue *qdesc;
8647         int cpu;
8648
8649         cpu = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8650         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8651                                       phba->sli4_hba.cq_esize,
8652                                       LPFC_CQE_EXP_COUNT, cpu);
8653         if (!qdesc) {
8654                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8655                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8656                                 wqidx);
8657                 return 1;
8658         }
8659         qdesc->qe_valid = 1;
8660         qdesc->hdwq = wqidx;
8661         qdesc->chann = cpu;
8662         phba->sli4_hba.hdwq[wqidx].nvme_cq = qdesc;
8663
8664         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8665                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT,
8666                                       cpu);
8667         if (!qdesc) {
8668                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8669                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8670                                 wqidx);
8671                 return 1;
8672         }
8673         qdesc->hdwq = wqidx;
8674         qdesc->chann = wqidx;
8675         phba->sli4_hba.hdwq[wqidx].nvme_wq = qdesc;
8676         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8677         return 0;
8678 }
8679
8680 static int
8681 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8682 {
8683         struct lpfc_queue *qdesc;
8684         uint32_t wqesize;
8685         int cpu;
8686
8687         cpu = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8688         /* Create Fast Path FCP CQs */
8689         if (phba->enab_exp_wqcq_pages)
8690                 /* Increase the CQ size when WQEs contain an embedded cdb */
8691                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8692                                               phba->sli4_hba.cq_esize,
8693                                               LPFC_CQE_EXP_COUNT, cpu);
8694
8695         else
8696                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8697                                               phba->sli4_hba.cq_esize,
8698                                               phba->sli4_hba.cq_ecount, cpu);
8699         if (!qdesc) {
8700                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8701                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8702                 return 1;
8703         }
8704         qdesc->qe_valid = 1;
8705         qdesc->hdwq = wqidx;
8706         qdesc->chann = cpu;
8707         phba->sli4_hba.hdwq[wqidx].fcp_cq = qdesc;
8708
8709         /* Create Fast Path FCP WQs */
8710         if (phba->enab_exp_wqcq_pages) {
8711                 /* Increase the WQ size when WQEs contain an embedded cdb */
8712                 wqesize = (phba->fcp_embed_io) ?
8713                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8714                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8715                                               wqesize,
8716                                               LPFC_WQE_EXP_COUNT, cpu);
8717         } else
8718                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8719                                               phba->sli4_hba.wq_esize,
8720                                               phba->sli4_hba.wq_ecount, cpu);
8721
8722         if (!qdesc) {
8723                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8724                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8725                                 wqidx);
8726                 return 1;
8727         }
8728         qdesc->hdwq = wqidx;
8729         qdesc->chann = wqidx;
8730         phba->sli4_hba.hdwq[wqidx].fcp_wq = qdesc;
8731         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8732         return 0;
8733 }
8734
8735 /**
8736  * lpfc_sli4_queue_create - Create all the SLI4 queues
8737  * @phba: pointer to lpfc hba data structure.
8738  *
8739  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8740  * operation. For each SLI4 queue type, the parameters such as queue entry
8741  * count (queue depth) shall be taken from the module parameter. For now,
8742  * we just use some constant number as place holder.
8743  *
8744  * Return codes
8745  *      0 - successful
8746  *      -ENOMEM - No availble memory
8747  *      -EIO - The mailbox failed to complete successfully.
8748  **/
8749 int
8750 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8751 {
8752         struct lpfc_queue *qdesc;
8753         int idx, cpu, eqcpu;
8754         struct lpfc_sli4_hdw_queue *qp;
8755         struct lpfc_vector_map_info *cpup;
8756         struct lpfc_vector_map_info *eqcpup;
8757         struct lpfc_eq_intr_info *eqi;
8758
8759         /*
8760          * Create HBA Record arrays.
8761          * Both NVME and FCP will share that same vectors / EQs
8762          */
8763         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8764         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8765         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8766         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8767         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8768         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8769         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8770         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8771         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8772         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8773
8774         if (!phba->sli4_hba.hdwq) {
8775                 phba->sli4_hba.hdwq = kcalloc(
8776                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8777                         GFP_KERNEL);
8778                 if (!phba->sli4_hba.hdwq) {
8779                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8780                                         "6427 Failed allocate memory for "
8781                                         "fast-path Hardware Queue array\n");
8782                         goto out_error;
8783                 }
8784                 /* Prepare hardware queues to take IO buffers */
8785                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8786                         qp = &phba->sli4_hba.hdwq[idx];
8787                         spin_lock_init(&qp->io_buf_list_get_lock);
8788                         spin_lock_init(&qp->io_buf_list_put_lock);
8789                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8790                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8791                         qp->get_io_bufs = 0;
8792                         qp->put_io_bufs = 0;
8793                         qp->total_io_bufs = 0;
8794                         spin_lock_init(&qp->abts_scsi_buf_list_lock);
8795                         INIT_LIST_HEAD(&qp->lpfc_abts_scsi_buf_list);
8796                         qp->abts_scsi_io_bufs = 0;
8797                         spin_lock_init(&qp->abts_nvme_buf_list_lock);
8798                         INIT_LIST_HEAD(&qp->lpfc_abts_nvme_buf_list);
8799                         qp->abts_nvme_io_bufs = 0;
8800                 }
8801         }
8802
8803         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8804                 if (phba->nvmet_support) {
8805                         phba->sli4_hba.nvmet_cqset = kcalloc(
8806                                         phba->cfg_nvmet_mrq,
8807                                         sizeof(struct lpfc_queue *),
8808                                         GFP_KERNEL);
8809                         if (!phba->sli4_hba.nvmet_cqset) {
8810                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8811                                         "3121 Fail allocate memory for "
8812                                         "fast-path CQ set array\n");
8813                                 goto out_error;
8814                         }
8815                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8816                                         phba->cfg_nvmet_mrq,
8817                                         sizeof(struct lpfc_queue *),
8818                                         GFP_KERNEL);
8819                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8820                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8821                                         "3122 Fail allocate memory for "
8822                                         "fast-path RQ set hdr array\n");
8823                                 goto out_error;
8824                         }
8825                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8826                                         phba->cfg_nvmet_mrq,
8827                                         sizeof(struct lpfc_queue *),
8828                                         GFP_KERNEL);
8829                         if (!phba->sli4_hba.nvmet_mrq_data) {
8830                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8831                                         "3124 Fail allocate memory for "
8832                                         "fast-path RQ set data array\n");
8833                                 goto out_error;
8834                         }
8835                 }
8836         }
8837
8838         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8839
8840         /* Create HBA Event Queues (EQs) */
8841         for_each_present_cpu(cpu) {
8842                 /* We only want to create 1 EQ per vector, even though
8843                  * multiple CPUs might be using that vector. so only
8844                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8845                  */
8846                 cpup = &phba->sli4_hba.cpu_map[cpu];
8847                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8848                         continue;
8849
8850                 /* Get a ptr to the Hardware Queue associated with this CPU */
8851                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8852
8853                 /* Allocate an EQ */
8854                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8855                                               phba->sli4_hba.eq_esize,
8856                                               phba->sli4_hba.eq_ecount, cpu);
8857                 if (!qdesc) {
8858                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8859                                         "0497 Failed allocate EQ (%d)\n",
8860                                         cpup->hdwq);
8861                         goto out_error;
8862                 }
8863                 qdesc->qe_valid = 1;
8864                 qdesc->hdwq = cpup->hdwq;
8865                 qdesc->chann = cpu; /* First CPU this EQ is affinitised to */
8866                 qdesc->last_cpu = qdesc->chann;
8867
8868                 /* Save the allocated EQ in the Hardware Queue */
8869                 qp->hba_eq = qdesc;
8870
8871                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8872                 list_add(&qdesc->cpu_list, &eqi->list);
8873         }
8874
8875         /* Now we need to populate the other Hardware Queues, that share
8876          * an IRQ vector, with the associated EQ ptr.
8877          */
8878         for_each_present_cpu(cpu) {
8879                 cpup = &phba->sli4_hba.cpu_map[cpu];
8880
8881                 /* Check for EQ already allocated in previous loop */
8882                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
8883                         continue;
8884
8885                 /* Check for multiple CPUs per hdwq */
8886                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8887                 if (qp->hba_eq)
8888                         continue;
8889
8890                 /* We need to share an EQ for this hdwq */
8891                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
8892                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
8893                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
8894         }
8895
8896         /* Allocate SCSI SLI4 CQ/WQs */
8897         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8898                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8899                         goto out_error;
8900         }
8901
8902         /* Allocate NVME SLI4 CQ/WQs */
8903         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8904                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8905                         if (lpfc_alloc_nvme_wq_cq(phba, idx))
8906                                 goto out_error;
8907                 }
8908
8909                 if (phba->nvmet_support) {
8910                         for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8911                                 cpu = lpfc_find_cpu_handle(phba, idx,
8912                                                            LPFC_FIND_BY_HDWQ);
8913                                 qdesc = lpfc_sli4_queue_alloc(
8914                                                       phba,
8915                                                       LPFC_DEFAULT_PAGE_SIZE,
8916                                                       phba->sli4_hba.cq_esize,
8917                                                       phba->sli4_hba.cq_ecount,
8918                                                       cpu);
8919                                 if (!qdesc) {
8920                                         lpfc_printf_log(
8921                                                 phba, KERN_ERR, LOG_INIT,
8922                                                 "3142 Failed allocate NVME "
8923                                                 "CQ Set (%d)\n", idx);
8924                                         goto out_error;
8925                                 }
8926                                 qdesc->qe_valid = 1;
8927                                 qdesc->hdwq = idx;
8928                                 qdesc->chann = cpu;
8929                                 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8930                         }
8931                 }
8932         }
8933
8934         /*
8935          * Create Slow Path Completion Queues (CQs)
8936          */
8937
8938         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
8939         /* Create slow-path Mailbox Command Complete Queue */
8940         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8941                                       phba->sli4_hba.cq_esize,
8942                                       phba->sli4_hba.cq_ecount, cpu);
8943         if (!qdesc) {
8944                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8945                                 "0500 Failed allocate slow-path mailbox CQ\n");
8946                 goto out_error;
8947         }
8948         qdesc->qe_valid = 1;
8949         phba->sli4_hba.mbx_cq = qdesc;
8950
8951         /* Create slow-path ELS Complete Queue */
8952         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8953                                       phba->sli4_hba.cq_esize,
8954                                       phba->sli4_hba.cq_ecount, cpu);
8955         if (!qdesc) {
8956                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8957                                 "0501 Failed allocate slow-path ELS CQ\n");
8958                 goto out_error;
8959         }
8960         qdesc->qe_valid = 1;
8961         qdesc->chann = 0;
8962         phba->sli4_hba.els_cq = qdesc;
8963
8964
8965         /*
8966          * Create Slow Path Work Queues (WQs)
8967          */
8968
8969         /* Create Mailbox Command Queue */
8970
8971         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8972                                       phba->sli4_hba.mq_esize,
8973                                       phba->sli4_hba.mq_ecount, cpu);
8974         if (!qdesc) {
8975                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8976                                 "0505 Failed allocate slow-path MQ\n");
8977                 goto out_error;
8978         }
8979         qdesc->chann = 0;
8980         phba->sli4_hba.mbx_wq = qdesc;
8981
8982         /*
8983          * Create ELS Work Queues
8984          */
8985
8986         /* Create slow-path ELS Work Queue */
8987         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8988                                       phba->sli4_hba.wq_esize,
8989                                       phba->sli4_hba.wq_ecount, cpu);
8990         if (!qdesc) {
8991                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8992                                 "0504 Failed allocate slow-path ELS WQ\n");
8993                 goto out_error;
8994         }
8995         qdesc->chann = 0;
8996         phba->sli4_hba.els_wq = qdesc;
8997         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8998
8999         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9000                 /* Create NVME LS Complete Queue */
9001                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9002                                               phba->sli4_hba.cq_esize,
9003                                               phba->sli4_hba.cq_ecount, cpu);
9004                 if (!qdesc) {
9005                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9006                                         "6079 Failed allocate NVME LS CQ\n");
9007                         goto out_error;
9008                 }
9009                 qdesc->chann = 0;
9010                 qdesc->qe_valid = 1;
9011                 phba->sli4_hba.nvmels_cq = qdesc;
9012
9013                 /* Create NVME LS Work Queue */
9014                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9015                                               phba->sli4_hba.wq_esize,
9016                                               phba->sli4_hba.wq_ecount, cpu);
9017                 if (!qdesc) {
9018                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9019                                         "6080 Failed allocate NVME LS WQ\n");
9020                         goto out_error;
9021                 }
9022                 qdesc->chann = 0;
9023                 phba->sli4_hba.nvmels_wq = qdesc;
9024                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9025         }
9026
9027         /*
9028          * Create Receive Queue (RQ)
9029          */
9030
9031         /* Create Receive Queue for header */
9032         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9033                                       phba->sli4_hba.rq_esize,
9034                                       phba->sli4_hba.rq_ecount, cpu);
9035         if (!qdesc) {
9036                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9037                                 "0506 Failed allocate receive HRQ\n");
9038                 goto out_error;
9039         }
9040         phba->sli4_hba.hdr_rq = qdesc;
9041
9042         /* Create Receive Queue for data */
9043         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9044                                       phba->sli4_hba.rq_esize,
9045                                       phba->sli4_hba.rq_ecount, cpu);
9046         if (!qdesc) {
9047                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9048                                 "0507 Failed allocate receive DRQ\n");
9049                 goto out_error;
9050         }
9051         phba->sli4_hba.dat_rq = qdesc;
9052
9053         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9054             phba->nvmet_support) {
9055                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9056                         cpu = lpfc_find_cpu_handle(phba, idx,
9057                                                    LPFC_FIND_BY_HDWQ);
9058                         /* Create NVMET Receive Queue for header */
9059                         qdesc = lpfc_sli4_queue_alloc(phba,
9060                                                       LPFC_DEFAULT_PAGE_SIZE,
9061                                                       phba->sli4_hba.rq_esize,
9062                                                       LPFC_NVMET_RQE_DEF_COUNT,
9063                                                       cpu);
9064                         if (!qdesc) {
9065                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9066                                                 "3146 Failed allocate "
9067                                                 "receive HRQ\n");
9068                                 goto out_error;
9069                         }
9070                         qdesc->hdwq = idx;
9071                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9072
9073                         /* Only needed for header of RQ pair */
9074                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9075                                                    GFP_KERNEL,
9076                                                    cpu_to_node(cpu));
9077                         if (qdesc->rqbp == NULL) {
9078                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9079                                                 "6131 Failed allocate "
9080                                                 "Header RQBP\n");
9081                                 goto out_error;
9082                         }
9083
9084                         /* Put list in known state in case driver load fails. */
9085                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9086
9087                         /* Create NVMET Receive Queue for data */
9088                         qdesc = lpfc_sli4_queue_alloc(phba,
9089                                                       LPFC_DEFAULT_PAGE_SIZE,
9090                                                       phba->sli4_hba.rq_esize,
9091                                                       LPFC_NVMET_RQE_DEF_COUNT,
9092                                                       cpu);
9093                         if (!qdesc) {
9094                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9095                                                 "3156 Failed allocate "
9096                                                 "receive DRQ\n");
9097                                 goto out_error;
9098                         }
9099                         qdesc->hdwq = idx;
9100                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9101                 }
9102         }
9103
9104 #if defined(BUILD_NVME)
9105         /* Clear NVME stats */
9106         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9107                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9108                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9109                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9110                 }
9111         }
9112 #endif
9113
9114         /* Clear SCSI stats */
9115         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9116                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9117                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9118                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9119                 }
9120         }
9121
9122         return 0;
9123
9124 out_error:
9125         lpfc_sli4_queue_destroy(phba);
9126         return -ENOMEM;
9127 }
9128
9129 static inline void
9130 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9131 {
9132         if (*qp != NULL) {
9133                 lpfc_sli4_queue_free(*qp);
9134                 *qp = NULL;
9135         }
9136 }
9137
9138 static inline void
9139 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9140 {
9141         int idx;
9142
9143         if (*qs == NULL)
9144                 return;
9145
9146         for (idx = 0; idx < max; idx++)
9147                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9148
9149         kfree(*qs);
9150         *qs = NULL;
9151 }
9152
9153 static inline void
9154 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9155 {
9156         struct lpfc_sli4_hdw_queue *hdwq;
9157         struct lpfc_queue *eq;
9158         uint32_t idx;
9159
9160         hdwq = phba->sli4_hba.hdwq;
9161
9162         /* Loop thru all Hardware Queues */
9163         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9164                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9165                 lpfc_sli4_queue_free(hdwq[idx].fcp_cq);
9166                 lpfc_sli4_queue_free(hdwq[idx].nvme_cq);
9167                 lpfc_sli4_queue_free(hdwq[idx].fcp_wq);
9168                 lpfc_sli4_queue_free(hdwq[idx].nvme_wq);
9169                 hdwq[idx].hba_eq = NULL;
9170                 hdwq[idx].fcp_cq = NULL;
9171                 hdwq[idx].nvme_cq = NULL;
9172                 hdwq[idx].fcp_wq = NULL;
9173                 hdwq[idx].nvme_wq = NULL;
9174         }
9175         /* Loop thru all IRQ vectors */
9176         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9177                 /* Free the EQ corresponding to the IRQ vector */
9178                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9179                 lpfc_sli4_queue_free(eq);
9180                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9181         }
9182 }
9183
9184 /**
9185  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9186  * @phba: pointer to lpfc hba data structure.
9187  *
9188  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9189  * operation.
9190  *
9191  * Return codes
9192  *      0 - successful
9193  *      -ENOMEM - No available memory
9194  *      -EIO - The mailbox failed to complete successfully.
9195  **/
9196 void
9197 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9198 {
9199         /*
9200          * Set FREE_INIT before beginning to free the queues.
9201          * Wait until the users of queues to acknowledge to
9202          * release queues by clearing FREE_WAIT.
9203          */
9204         spin_lock_irq(&phba->hbalock);
9205         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9206         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9207                 spin_unlock_irq(&phba->hbalock);
9208                 msleep(20);
9209                 spin_lock_irq(&phba->hbalock);
9210         }
9211         spin_unlock_irq(&phba->hbalock);
9212
9213         /* Release HBA eqs */
9214         if (phba->sli4_hba.hdwq)
9215                 lpfc_sli4_release_hdwq(phba);
9216
9217         if (phba->nvmet_support) {
9218                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9219                                          phba->cfg_nvmet_mrq);
9220
9221                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9222                                          phba->cfg_nvmet_mrq);
9223                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9224                                          phba->cfg_nvmet_mrq);
9225         }
9226
9227         /* Release mailbox command work queue */
9228         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9229
9230         /* Release ELS work queue */
9231         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9232
9233         /* Release ELS work queue */
9234         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9235
9236         /* Release unsolicited receive queue */
9237         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9238         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9239
9240         /* Release ELS complete queue */
9241         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9242
9243         /* Release NVME LS complete queue */
9244         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9245
9246         /* Release mailbox command complete queue */
9247         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9248
9249         /* Everything on this list has been freed */
9250         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9251
9252         /* Done with freeing the queues */
9253         spin_lock_irq(&phba->hbalock);
9254         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9255         spin_unlock_irq(&phba->hbalock);
9256 }
9257
9258 int
9259 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9260 {
9261         struct lpfc_rqb *rqbp;
9262         struct lpfc_dmabuf *h_buf;
9263         struct rqb_dmabuf *rqb_buffer;
9264
9265         rqbp = rq->rqbp;
9266         while (!list_empty(&rqbp->rqb_buffer_list)) {
9267                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9268                                  struct lpfc_dmabuf, list);
9269
9270                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9271                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9272                 rqbp->buffer_count--;
9273         }
9274         return 1;
9275 }
9276
9277 static int
9278 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9279         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9280         int qidx, uint32_t qtype)
9281 {
9282         struct lpfc_sli_ring *pring;
9283         int rc;
9284
9285         if (!eq || !cq || !wq) {
9286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9287                         "6085 Fast-path %s (%d) not allocated\n",
9288                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9289                 return -ENOMEM;
9290         }
9291
9292         /* create the Cq first */
9293         rc = lpfc_cq_create(phba, cq, eq,
9294                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9295         if (rc) {
9296                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9297                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9298                         qidx, (uint32_t)rc);
9299                 return rc;
9300         }
9301
9302         if (qtype != LPFC_MBOX) {
9303                 /* Setup cq_map for fast lookup */
9304                 if (cq_map)
9305                         *cq_map = cq->queue_id;
9306
9307                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9308                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9309                         qidx, cq->queue_id, qidx, eq->queue_id);
9310
9311                 /* create the wq */
9312                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9313                 if (rc) {
9314                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9315                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9316                                 qidx, (uint32_t)rc);
9317                         /* no need to tear down cq - caller will do so */
9318                         return rc;
9319                 }
9320
9321                 /* Bind this CQ/WQ to the NVME ring */
9322                 pring = wq->pring;
9323                 pring->sli.sli4.wqp = (void *)wq;
9324                 cq->pring = pring;
9325
9326                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9327                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9328                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9329         } else {
9330                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9331                 if (rc) {
9332                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9333                                 "0539 Failed setup of slow-path MQ: "
9334                                 "rc = 0x%x\n", rc);
9335                         /* no need to tear down cq - caller will do so */
9336                         return rc;
9337                 }
9338
9339                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9340                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9341                         phba->sli4_hba.mbx_wq->queue_id,
9342                         phba->sli4_hba.mbx_cq->queue_id);
9343         }
9344
9345         return 0;
9346 }
9347
9348 /**
9349  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9350  * @phba: pointer to lpfc hba data structure.
9351  *
9352  * This routine will populate the cq_lookup table by all
9353  * available CQ queue_id's.
9354  **/
9355 static void
9356 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9357 {
9358         struct lpfc_queue *eq, *childq;
9359         int qidx;
9360
9361         memset(phba->sli4_hba.cq_lookup, 0,
9362                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9363         /* Loop thru all IRQ vectors */
9364         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9365                 /* Get the EQ corresponding to the IRQ vector */
9366                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9367                 if (!eq)
9368                         continue;
9369                 /* Loop through all CQs associated with that EQ */
9370                 list_for_each_entry(childq, &eq->child_list, list) {
9371                         if (childq->queue_id > phba->sli4_hba.cq_max)
9372                                 continue;
9373                         if ((childq->subtype == LPFC_FCP) ||
9374                             (childq->subtype == LPFC_NVME))
9375                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9376                                         childq;
9377                 }
9378         }
9379 }
9380
9381 /**
9382  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9383  * @phba: pointer to lpfc hba data structure.
9384  *
9385  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9386  * operation.
9387  *
9388  * Return codes
9389  *      0 - successful
9390  *      -ENOMEM - No available memory
9391  *      -EIO - The mailbox failed to complete successfully.
9392  **/
9393 int
9394 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9395 {
9396         uint32_t shdr_status, shdr_add_status;
9397         union lpfc_sli4_cfg_shdr *shdr;
9398         struct lpfc_vector_map_info *cpup;
9399         struct lpfc_sli4_hdw_queue *qp;
9400         LPFC_MBOXQ_t *mboxq;
9401         int qidx, cpu;
9402         uint32_t length, usdelay;
9403         int rc = -ENOMEM;
9404
9405         /* Check for dual-ULP support */
9406         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9407         if (!mboxq) {
9408                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9409                                 "3249 Unable to allocate memory for "
9410                                 "QUERY_FW_CFG mailbox command\n");
9411                 return -ENOMEM;
9412         }
9413         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9414                   sizeof(struct lpfc_sli4_cfg_mhdr));
9415         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9416                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9417                          length, LPFC_SLI4_MBX_EMBED);
9418
9419         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9420
9421         shdr = (union lpfc_sli4_cfg_shdr *)
9422                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9423         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9424         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9425         if (shdr_status || shdr_add_status || rc) {
9426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9427                                 "3250 QUERY_FW_CFG mailbox failed with status "
9428                                 "x%x add_status x%x, mbx status x%x\n",
9429                                 shdr_status, shdr_add_status, rc);
9430                 if (rc != MBX_TIMEOUT)
9431                         mempool_free(mboxq, phba->mbox_mem_pool);
9432                 rc = -ENXIO;
9433                 goto out_error;
9434         }
9435
9436         phba->sli4_hba.fw_func_mode =
9437                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9438         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9439         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9440         phba->sli4_hba.physical_port =
9441                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9442         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9443                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9444                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9445                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9446
9447         if (rc != MBX_TIMEOUT)
9448                 mempool_free(mboxq, phba->mbox_mem_pool);
9449
9450         /*
9451          * Set up HBA Event Queues (EQs)
9452          */
9453         qp = phba->sli4_hba.hdwq;
9454
9455         /* Set up HBA event queue */
9456         if (!qp) {
9457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9458                                 "3147 Fast-path EQs not allocated\n");
9459                 rc = -ENOMEM;
9460                 goto out_error;
9461         }
9462
9463         /* Loop thru all IRQ vectors */
9464         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9465                 /* Create HBA Event Queues (EQs) in order */
9466                 for_each_present_cpu(cpu) {
9467                         cpup = &phba->sli4_hba.cpu_map[cpu];
9468
9469                         /* Look for the CPU thats using that vector with
9470                          * LPFC_CPU_FIRST_IRQ set.
9471                          */
9472                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9473                                 continue;
9474                         if (qidx != cpup->eq)
9475                                 continue;
9476
9477                         /* Create an EQ for that vector */
9478                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9479                                             phba->cfg_fcp_imax);
9480                         if (rc) {
9481                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9482                                                 "0523 Failed setup of fast-path"
9483                                                 " EQ (%d), rc = 0x%x\n",
9484                                                 cpup->eq, (uint32_t)rc);
9485                                 goto out_destroy;
9486                         }
9487
9488                         /* Save the EQ for that vector in the hba_eq_hdl */
9489                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9490                                 qp[cpup->hdwq].hba_eq;
9491
9492                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9493                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9494                                         cpup->eq,
9495                                         qp[cpup->hdwq].hba_eq->queue_id);
9496                 }
9497         }
9498
9499         /* Loop thru all Hardware Queues */
9500         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9501                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9502                         cpu = lpfc_find_cpu_handle(phba, qidx,
9503                                                    LPFC_FIND_BY_HDWQ);
9504                         cpup = &phba->sli4_hba.cpu_map[cpu];
9505
9506                         /* Create the CQ/WQ corresponding to the
9507                          * Hardware Queue
9508                          */
9509                         rc = lpfc_create_wq_cq(phba,
9510                                         phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9511                                         qp[qidx].nvme_cq,
9512                                         qp[qidx].nvme_wq,
9513                                         &phba->sli4_hba.hdwq[qidx].nvme_cq_map,
9514                                         qidx, LPFC_NVME);
9515                         if (rc) {
9516                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9517                                         "6123 Failed to setup fastpath "
9518                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
9519                                         qidx, (uint32_t)rc);
9520                                 goto out_destroy;
9521                         }
9522                 }
9523         }
9524
9525         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9526                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9527                 cpup = &phba->sli4_hba.cpu_map[cpu];
9528
9529                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9530                 rc = lpfc_create_wq_cq(phba,
9531                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9532                                        qp[qidx].fcp_cq,
9533                                        qp[qidx].fcp_wq,
9534                                        &phba->sli4_hba.hdwq[qidx].fcp_cq_map,
9535                                        qidx, LPFC_FCP);
9536                 if (rc) {
9537                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9538                                         "0535 Failed to setup fastpath "
9539                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
9540                                         qidx, (uint32_t)rc);
9541                         goto out_destroy;
9542                 }
9543         }
9544
9545         /*
9546          * Set up Slow Path Complete Queues (CQs)
9547          */
9548
9549         /* Set up slow-path MBOX CQ/MQ */
9550
9551         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9552                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9553                                 "0528 %s not allocated\n",
9554                                 phba->sli4_hba.mbx_cq ?
9555                                 "Mailbox WQ" : "Mailbox CQ");
9556                 rc = -ENOMEM;
9557                 goto out_destroy;
9558         }
9559
9560         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9561                                phba->sli4_hba.mbx_cq,
9562                                phba->sli4_hba.mbx_wq,
9563                                NULL, 0, LPFC_MBOX);
9564         if (rc) {
9565                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9566                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9567                         (uint32_t)rc);
9568                 goto out_destroy;
9569         }
9570         if (phba->nvmet_support) {
9571                 if (!phba->sli4_hba.nvmet_cqset) {
9572                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9573                                         "3165 Fast-path NVME CQ Set "
9574                                         "array not allocated\n");
9575                         rc = -ENOMEM;
9576                         goto out_destroy;
9577                 }
9578                 if (phba->cfg_nvmet_mrq > 1) {
9579                         rc = lpfc_cq_create_set(phba,
9580                                         phba->sli4_hba.nvmet_cqset,
9581                                         qp,
9582                                         LPFC_WCQ, LPFC_NVMET);
9583                         if (rc) {
9584                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9585                                                 "3164 Failed setup of NVME CQ "
9586                                                 "Set, rc = 0x%x\n",
9587                                                 (uint32_t)rc);
9588                                 goto out_destroy;
9589                         }
9590                 } else {
9591                         /* Set up NVMET Receive Complete Queue */
9592                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9593                                             qp[0].hba_eq,
9594                                             LPFC_WCQ, LPFC_NVMET);
9595                         if (rc) {
9596                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9597                                                 "6089 Failed setup NVMET CQ: "
9598                                                 "rc = 0x%x\n", (uint32_t)rc);
9599                                 goto out_destroy;
9600                         }
9601                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9602
9603                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9604                                         "6090 NVMET CQ setup: cq-id=%d, "
9605                                         "parent eq-id=%d\n",
9606                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9607                                         qp[0].hba_eq->queue_id);
9608                 }
9609         }
9610
9611         /* Set up slow-path ELS WQ/CQ */
9612         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9614                                 "0530 ELS %s not allocated\n",
9615                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9616                 rc = -ENOMEM;
9617                 goto out_destroy;
9618         }
9619         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9620                                phba->sli4_hba.els_cq,
9621                                phba->sli4_hba.els_wq,
9622                                NULL, 0, LPFC_ELS);
9623         if (rc) {
9624                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9625                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9626                                 (uint32_t)rc);
9627                 goto out_destroy;
9628         }
9629         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9630                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9631                         phba->sli4_hba.els_wq->queue_id,
9632                         phba->sli4_hba.els_cq->queue_id);
9633
9634         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9635                 /* Set up NVME LS Complete Queue */
9636                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9637                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9638                                         "6091 LS %s not allocated\n",
9639                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9640                         rc = -ENOMEM;
9641                         goto out_destroy;
9642                 }
9643                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9644                                        phba->sli4_hba.nvmels_cq,
9645                                        phba->sli4_hba.nvmels_wq,
9646                                        NULL, 0, LPFC_NVME_LS);
9647                 if (rc) {
9648                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9649                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9650                                         "rc = 0x%x\n", (uint32_t)rc);
9651                         goto out_destroy;
9652                 }
9653
9654                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9655                                 "6096 ELS WQ setup: wq-id=%d, "
9656                                 "parent cq-id=%d\n",
9657                                 phba->sli4_hba.nvmels_wq->queue_id,
9658                                 phba->sli4_hba.nvmels_cq->queue_id);
9659         }
9660
9661         /*
9662          * Create NVMET Receive Queue (RQ)
9663          */
9664         if (phba->nvmet_support) {
9665                 if ((!phba->sli4_hba.nvmet_cqset) ||
9666                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9667                     (!phba->sli4_hba.nvmet_mrq_data)) {
9668                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9669                                         "6130 MRQ CQ Queues not "
9670                                         "allocated\n");
9671                         rc = -ENOMEM;
9672                         goto out_destroy;
9673                 }
9674                 if (phba->cfg_nvmet_mrq > 1) {
9675                         rc = lpfc_mrq_create(phba,
9676                                              phba->sli4_hba.nvmet_mrq_hdr,
9677                                              phba->sli4_hba.nvmet_mrq_data,
9678                                              phba->sli4_hba.nvmet_cqset,
9679                                              LPFC_NVMET);
9680                         if (rc) {
9681                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9682                                                 "6098 Failed setup of NVMET "
9683                                                 "MRQ: rc = 0x%x\n",
9684                                                 (uint32_t)rc);
9685                                 goto out_destroy;
9686                         }
9687
9688                 } else {
9689                         rc = lpfc_rq_create(phba,
9690                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9691                                             phba->sli4_hba.nvmet_mrq_data[0],
9692                                             phba->sli4_hba.nvmet_cqset[0],
9693                                             LPFC_NVMET);
9694                         if (rc) {
9695                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9696                                                 "6057 Failed setup of NVMET "
9697                                                 "Receive Queue: rc = 0x%x\n",
9698                                                 (uint32_t)rc);
9699                                 goto out_destroy;
9700                         }
9701
9702                         lpfc_printf_log(
9703                                 phba, KERN_INFO, LOG_INIT,
9704                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9705                                 "dat-rq-id=%d parent cq-id=%d\n",
9706                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9707                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9708                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9709
9710                 }
9711         }
9712
9713         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9714                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9715                                 "0540 Receive Queue not allocated\n");
9716                 rc = -ENOMEM;
9717                 goto out_destroy;
9718         }
9719
9720         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9721                             phba->sli4_hba.els_cq, LPFC_USOL);
9722         if (rc) {
9723                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9724                                 "0541 Failed setup of Receive Queue: "
9725                                 "rc = 0x%x\n", (uint32_t)rc);
9726                 goto out_destroy;
9727         }
9728
9729         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9730                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9731                         "parent cq-id=%d\n",
9732                         phba->sli4_hba.hdr_rq->queue_id,
9733                         phba->sli4_hba.dat_rq->queue_id,
9734                         phba->sli4_hba.els_cq->queue_id);
9735
9736         if (phba->cfg_fcp_imax)
9737                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9738         else
9739                 usdelay = 0;
9740
9741         for (qidx = 0; qidx < phba->cfg_irq_chann;
9742              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9743                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9744                                          usdelay);
9745
9746         if (phba->sli4_hba.cq_max) {
9747                 kfree(phba->sli4_hba.cq_lookup);
9748                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9749                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9750                 if (!phba->sli4_hba.cq_lookup) {
9751                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9752                                         "0549 Failed setup of CQ Lookup table: "
9753                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9754                         rc = -ENOMEM;
9755                         goto out_destroy;
9756                 }
9757                 lpfc_setup_cq_lookup(phba);
9758         }
9759         return 0;
9760
9761 out_destroy:
9762         lpfc_sli4_queue_unset(phba);
9763 out_error:
9764         return rc;
9765 }
9766
9767 /**
9768  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9769  * @phba: pointer to lpfc hba data structure.
9770  *
9771  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9772  * operation.
9773  *
9774  * Return codes
9775  *      0 - successful
9776  *      -ENOMEM - No available memory
9777  *      -EIO - The mailbox failed to complete successfully.
9778  **/
9779 void
9780 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9781 {
9782         struct lpfc_sli4_hdw_queue *qp;
9783         struct lpfc_queue *eq;
9784         int qidx;
9785
9786         /* Unset mailbox command work queue */
9787         if (phba->sli4_hba.mbx_wq)
9788                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9789
9790         /* Unset NVME LS work queue */
9791         if (phba->sli4_hba.nvmels_wq)
9792                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9793
9794         /* Unset ELS work queue */
9795         if (phba->sli4_hba.els_wq)
9796                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9797
9798         /* Unset unsolicited receive queue */
9799         if (phba->sli4_hba.hdr_rq)
9800                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9801                                 phba->sli4_hba.dat_rq);
9802
9803         /* Unset mailbox command complete queue */
9804         if (phba->sli4_hba.mbx_cq)
9805                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9806
9807         /* Unset ELS complete queue */
9808         if (phba->sli4_hba.els_cq)
9809                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9810
9811         /* Unset NVME LS complete queue */
9812         if (phba->sli4_hba.nvmels_cq)
9813                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9814
9815         if (phba->nvmet_support) {
9816                 /* Unset NVMET MRQ queue */
9817                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9818                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9819                                 lpfc_rq_destroy(
9820                                         phba,
9821                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9822                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9823                 }
9824
9825                 /* Unset NVMET CQ Set complete queue */
9826                 if (phba->sli4_hba.nvmet_cqset) {
9827                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9828                                 lpfc_cq_destroy(
9829                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9830                 }
9831         }
9832
9833         /* Unset fast-path SLI4 queues */
9834         if (phba->sli4_hba.hdwq) {
9835                 /* Loop thru all Hardware Queues */
9836                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9837                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
9838                         qp = &phba->sli4_hba.hdwq[qidx];
9839                         lpfc_wq_destroy(phba, qp->fcp_wq);
9840                         lpfc_wq_destroy(phba, qp->nvme_wq);
9841                         lpfc_cq_destroy(phba, qp->fcp_cq);
9842                         lpfc_cq_destroy(phba, qp->nvme_cq);
9843                 }
9844                 /* Loop thru all IRQ vectors */
9845                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9846                         /* Destroy the EQ corresponding to the IRQ vector */
9847                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9848                         lpfc_eq_destroy(phba, eq);
9849                 }
9850         }
9851
9852         kfree(phba->sli4_hba.cq_lookup);
9853         phba->sli4_hba.cq_lookup = NULL;
9854         phba->sli4_hba.cq_max = 0;
9855 }
9856
9857 /**
9858  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9859  * @phba: pointer to lpfc hba data structure.
9860  *
9861  * This routine is invoked to allocate and set up a pool of completion queue
9862  * events. The body of the completion queue event is a completion queue entry
9863  * CQE. For now, this pool is used for the interrupt service routine to queue
9864  * the following HBA completion queue events for the worker thread to process:
9865  *   - Mailbox asynchronous events
9866  *   - Receive queue completion unsolicited events
9867  * Later, this can be used for all the slow-path events.
9868  *
9869  * Return codes
9870  *      0 - successful
9871  *      -ENOMEM - No available memory
9872  **/
9873 static int
9874 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9875 {
9876         struct lpfc_cq_event *cq_event;
9877         int i;
9878
9879         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9880                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9881                 if (!cq_event)
9882                         goto out_pool_create_fail;
9883                 list_add_tail(&cq_event->list,
9884                               &phba->sli4_hba.sp_cqe_event_pool);
9885         }
9886         return 0;
9887
9888 out_pool_create_fail:
9889         lpfc_sli4_cq_event_pool_destroy(phba);
9890         return -ENOMEM;
9891 }
9892
9893 /**
9894  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9895  * @phba: pointer to lpfc hba data structure.
9896  *
9897  * This routine is invoked to free the pool of completion queue events at
9898  * driver unload time. Note that, it is the responsibility of the driver
9899  * cleanup routine to free all the outstanding completion-queue events
9900  * allocated from this pool back into the pool before invoking this routine
9901  * to destroy the pool.
9902  **/
9903 static void
9904 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9905 {
9906         struct lpfc_cq_event *cq_event, *next_cq_event;
9907
9908         list_for_each_entry_safe(cq_event, next_cq_event,
9909                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9910                 list_del(&cq_event->list);
9911                 kfree(cq_event);
9912         }
9913 }
9914
9915 /**
9916  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9917  * @phba: pointer to lpfc hba data structure.
9918  *
9919  * This routine is the lock free version of the API invoked to allocate a
9920  * completion-queue event from the free pool.
9921  *
9922  * Return: Pointer to the newly allocated completion-queue event if successful
9923  *         NULL otherwise.
9924  **/
9925 struct lpfc_cq_event *
9926 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9927 {
9928         struct lpfc_cq_event *cq_event = NULL;
9929
9930         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9931                          struct lpfc_cq_event, list);
9932         return cq_event;
9933 }
9934
9935 /**
9936  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9937  * @phba: pointer to lpfc hba data structure.
9938  *
9939  * This routine is the lock version of the API invoked to allocate a
9940  * completion-queue event from the free pool.
9941  *
9942  * Return: Pointer to the newly allocated completion-queue event if successful
9943  *         NULL otherwise.
9944  **/
9945 struct lpfc_cq_event *
9946 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9947 {
9948         struct lpfc_cq_event *cq_event;
9949         unsigned long iflags;
9950
9951         spin_lock_irqsave(&phba->hbalock, iflags);
9952         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9953         spin_unlock_irqrestore(&phba->hbalock, iflags);
9954         return cq_event;
9955 }
9956
9957 /**
9958  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9959  * @phba: pointer to lpfc hba data structure.
9960  * @cq_event: pointer to the completion queue event to be freed.
9961  *
9962  * This routine is the lock free version of the API invoked to release a
9963  * completion-queue event back into the free pool.
9964  **/
9965 void
9966 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9967                              struct lpfc_cq_event *cq_event)
9968 {
9969         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9970 }
9971
9972 /**
9973  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9974  * @phba: pointer to lpfc hba data structure.
9975  * @cq_event: pointer to the completion queue event to be freed.
9976  *
9977  * This routine is the lock version of the API invoked to release a
9978  * completion-queue event back into the free pool.
9979  **/
9980 void
9981 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9982                            struct lpfc_cq_event *cq_event)
9983 {
9984         unsigned long iflags;
9985         spin_lock_irqsave(&phba->hbalock, iflags);
9986         __lpfc_sli4_cq_event_release(phba, cq_event);
9987         spin_unlock_irqrestore(&phba->hbalock, iflags);
9988 }
9989
9990 /**
9991  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9992  * @phba: pointer to lpfc hba data structure.
9993  *
9994  * This routine is to free all the pending completion-queue events to the
9995  * back into the free pool for device reset.
9996  **/
9997 static void
9998 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9999 {
10000         LIST_HEAD(cqelist);
10001         struct lpfc_cq_event *cqe;
10002         unsigned long iflags;
10003
10004         /* Retrieve all the pending WCQEs from pending WCQE lists */
10005         spin_lock_irqsave(&phba->hbalock, iflags);
10006         /* Pending FCP XRI abort events */
10007         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10008                          &cqelist);
10009         /* Pending ELS XRI abort events */
10010         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10011                          &cqelist);
10012         /* Pending asynnc events */
10013         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10014                          &cqelist);
10015         spin_unlock_irqrestore(&phba->hbalock, iflags);
10016
10017         while (!list_empty(&cqelist)) {
10018                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
10019                 lpfc_sli4_cq_event_release(phba, cqe);
10020         }
10021 }
10022
10023 /**
10024  * lpfc_pci_function_reset - Reset pci function.
10025  * @phba: pointer to lpfc hba data structure.
10026  *
10027  * This routine is invoked to request a PCI function reset. It will destroys
10028  * all resources assigned to the PCI function which originates this request.
10029  *
10030  * Return codes
10031  *      0 - successful
10032  *      -ENOMEM - No available memory
10033  *      -EIO - The mailbox failed to complete successfully.
10034  **/
10035 int
10036 lpfc_pci_function_reset(struct lpfc_hba *phba)
10037 {
10038         LPFC_MBOXQ_t *mboxq;
10039         uint32_t rc = 0, if_type;
10040         uint32_t shdr_status, shdr_add_status;
10041         uint32_t rdy_chk;
10042         uint32_t port_reset = 0;
10043         union lpfc_sli4_cfg_shdr *shdr;
10044         struct lpfc_register reg_data;
10045         uint16_t devid;
10046
10047         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10048         switch (if_type) {
10049         case LPFC_SLI_INTF_IF_TYPE_0:
10050                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10051                                                        GFP_KERNEL);
10052                 if (!mboxq) {
10053                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10054                                         "0494 Unable to allocate memory for "
10055                                         "issuing SLI_FUNCTION_RESET mailbox "
10056                                         "command\n");
10057                         return -ENOMEM;
10058                 }
10059
10060                 /* Setup PCI function reset mailbox-ioctl command */
10061                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10062                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10063                                  LPFC_SLI4_MBX_EMBED);
10064                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10065                 shdr = (union lpfc_sli4_cfg_shdr *)
10066                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10067                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10068                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10069                                          &shdr->response);
10070                 if (rc != MBX_TIMEOUT)
10071                         mempool_free(mboxq, phba->mbox_mem_pool);
10072                 if (shdr_status || shdr_add_status || rc) {
10073                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10074                                         "0495 SLI_FUNCTION_RESET mailbox "
10075                                         "failed with status x%x add_status x%x,"
10076                                         " mbx status x%x\n",
10077                                         shdr_status, shdr_add_status, rc);
10078                         rc = -ENXIO;
10079                 }
10080                 break;
10081         case LPFC_SLI_INTF_IF_TYPE_2:
10082         case LPFC_SLI_INTF_IF_TYPE_6:
10083 wait:
10084                 /*
10085                  * Poll the Port Status Register and wait for RDY for
10086                  * up to 30 seconds. If the port doesn't respond, treat
10087                  * it as an error.
10088                  */
10089                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10090                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10091                                 STATUSregaddr, &reg_data.word0)) {
10092                                 rc = -ENODEV;
10093                                 goto out;
10094                         }
10095                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10096                                 break;
10097                         msleep(20);
10098                 }
10099
10100                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10101                         phba->work_status[0] = readl(
10102                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10103                         phba->work_status[1] = readl(
10104                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10105                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10106                                         "2890 Port not ready, port status reg "
10107                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10108                                         reg_data.word0,
10109                                         phba->work_status[0],
10110                                         phba->work_status[1]);
10111                         rc = -ENODEV;
10112                         goto out;
10113                 }
10114
10115                 if (!port_reset) {
10116                         /*
10117                          * Reset the port now
10118                          */
10119                         reg_data.word0 = 0;
10120                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10121                                LPFC_SLIPORT_LITTLE_ENDIAN);
10122                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10123                                LPFC_SLIPORT_INIT_PORT);
10124                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10125                                CTRLregaddr);
10126                         /* flush */
10127                         pci_read_config_word(phba->pcidev,
10128                                              PCI_DEVICE_ID, &devid);
10129
10130                         port_reset = 1;
10131                         msleep(20);
10132                         goto wait;
10133                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10134                         rc = -ENODEV;
10135                         goto out;
10136                 }
10137                 break;
10138
10139         case LPFC_SLI_INTF_IF_TYPE_1:
10140         default:
10141                 break;
10142         }
10143
10144 out:
10145         /* Catch the not-ready port failure after a port reset. */
10146         if (rc) {
10147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10148                                 "3317 HBA not functional: IP Reset Failed "
10149                                 "try: echo fw_reset > board_mode\n");
10150                 rc = -ENODEV;
10151         }
10152
10153         return rc;
10154 }
10155
10156 /**
10157  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10158  * @phba: pointer to lpfc hba data structure.
10159  *
10160  * This routine is invoked to set up the PCI device memory space for device
10161  * with SLI-4 interface spec.
10162  *
10163  * Return codes
10164  *      0 - successful
10165  *      other values - error
10166  **/
10167 static int
10168 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10169 {
10170         struct pci_dev *pdev = phba->pcidev;
10171         unsigned long bar0map_len, bar1map_len, bar2map_len;
10172         int error;
10173         uint32_t if_type;
10174
10175         if (!pdev)
10176                 return -ENODEV;
10177
10178         /* Set the device DMA mask size */
10179         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10180         if (error)
10181                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10182         if (error)
10183                 return error;
10184
10185         /*
10186          * The BARs and register set definitions and offset locations are
10187          * dependent on the if_type.
10188          */
10189         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10190                                   &phba->sli4_hba.sli_intf.word0)) {
10191                 return -ENODEV;
10192         }
10193
10194         /* There is no SLI3 failback for SLI4 devices. */
10195         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10196             LPFC_SLI_INTF_VALID) {
10197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10198                                 "2894 SLI_INTF reg contents invalid "
10199                                 "sli_intf reg 0x%x\n",
10200                                 phba->sli4_hba.sli_intf.word0);
10201                 return -ENODEV;
10202         }
10203
10204         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10205         /*
10206          * Get the bus address of SLI4 device Bar regions and the
10207          * number of bytes required by each mapping. The mapping of the
10208          * particular PCI BARs regions is dependent on the type of
10209          * SLI4 device.
10210          */
10211         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10212                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10213                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10214
10215                 /*
10216                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10217                  * addr
10218                  */
10219                 phba->sli4_hba.conf_regs_memmap_p =
10220                         ioremap(phba->pci_bar0_map, bar0map_len);
10221                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10222                         dev_printk(KERN_ERR, &pdev->dev,
10223                                    "ioremap failed for SLI4 PCI config "
10224                                    "registers.\n");
10225                         return -ENODEV;
10226                 }
10227                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10228                 /* Set up BAR0 PCI config space register memory map */
10229                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10230         } else {
10231                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10232                 bar0map_len = pci_resource_len(pdev, 1);
10233                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10234                         dev_printk(KERN_ERR, &pdev->dev,
10235                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10236                         return -ENODEV;
10237                 }
10238                 phba->sli4_hba.conf_regs_memmap_p =
10239                                 ioremap(phba->pci_bar0_map, bar0map_len);
10240                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10241                         dev_printk(KERN_ERR, &pdev->dev,
10242                                 "ioremap failed for SLI4 PCI config "
10243                                 "registers.\n");
10244                         return -ENODEV;
10245                 }
10246                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10247         }
10248
10249         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10250                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10251                         /*
10252                          * Map SLI4 if type 0 HBA Control Register base to a
10253                          * kernel virtual address and setup the registers.
10254                          */
10255                         phba->pci_bar1_map = pci_resource_start(pdev,
10256                                                                 PCI_64BIT_BAR2);
10257                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10258                         phba->sli4_hba.ctrl_regs_memmap_p =
10259                                         ioremap(phba->pci_bar1_map,
10260                                                 bar1map_len);
10261                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10262                                 dev_err(&pdev->dev,
10263                                            "ioremap failed for SLI4 HBA "
10264                                             "control registers.\n");
10265                                 error = -ENOMEM;
10266                                 goto out_iounmap_conf;
10267                         }
10268                         phba->pci_bar2_memmap_p =
10269                                          phba->sli4_hba.ctrl_regs_memmap_p;
10270                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10271                 } else {
10272                         error = -ENOMEM;
10273                         goto out_iounmap_conf;
10274                 }
10275         }
10276
10277         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10278             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10279                 /*
10280                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10281                  * virtual address and setup the registers.
10282                  */
10283                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10284                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10285                 phba->sli4_hba.drbl_regs_memmap_p =
10286                                 ioremap(phba->pci_bar1_map, bar1map_len);
10287                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10288                         dev_err(&pdev->dev,
10289                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10290                         error = -ENOMEM;
10291                         goto out_iounmap_conf;
10292                 }
10293                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10294                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10295         }
10296
10297         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10298                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10299                         /*
10300                          * Map SLI4 if type 0 HBA Doorbell Register base to
10301                          * a kernel virtual address and setup the registers.
10302                          */
10303                         phba->pci_bar2_map = pci_resource_start(pdev,
10304                                                                 PCI_64BIT_BAR4);
10305                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10306                         phba->sli4_hba.drbl_regs_memmap_p =
10307                                         ioremap(phba->pci_bar2_map,
10308                                                 bar2map_len);
10309                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10310                                 dev_err(&pdev->dev,
10311                                            "ioremap failed for SLI4 HBA"
10312                                            " doorbell registers.\n");
10313                                 error = -ENOMEM;
10314                                 goto out_iounmap_ctrl;
10315                         }
10316                         phba->pci_bar4_memmap_p =
10317                                         phba->sli4_hba.drbl_regs_memmap_p;
10318                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10319                         if (error)
10320                                 goto out_iounmap_all;
10321                 } else {
10322                         error = -ENOMEM;
10323                         goto out_iounmap_all;
10324                 }
10325         }
10326
10327         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10328             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10329                 /*
10330                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10331                  * virtual address and setup the registers.
10332                  */
10333                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10334                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10335                 phba->sli4_hba.dpp_regs_memmap_p =
10336                                 ioremap(phba->pci_bar2_map, bar2map_len);
10337                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10338                         dev_err(&pdev->dev,
10339                            "ioremap failed for SLI4 HBA dpp registers.\n");
10340                         error = -ENOMEM;
10341                         goto out_iounmap_ctrl;
10342                 }
10343                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10344         }
10345
10346         /* Set up the EQ/CQ register handeling functions now */
10347         switch (if_type) {
10348         case LPFC_SLI_INTF_IF_TYPE_0:
10349         case LPFC_SLI_INTF_IF_TYPE_2:
10350                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10351                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10352                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10353                 break;
10354         case LPFC_SLI_INTF_IF_TYPE_6:
10355                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10356                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10357                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10358                 break;
10359         default:
10360                 break;
10361         }
10362
10363         return 0;
10364
10365 out_iounmap_all:
10366         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10367 out_iounmap_ctrl:
10368         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10369 out_iounmap_conf:
10370         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10371
10372         return error;
10373 }
10374
10375 /**
10376  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10377  * @phba: pointer to lpfc hba data structure.
10378  *
10379  * This routine is invoked to unset the PCI device memory space for device
10380  * with SLI-4 interface spec.
10381  **/
10382 static void
10383 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10384 {
10385         uint32_t if_type;
10386         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10387
10388         switch (if_type) {
10389         case LPFC_SLI_INTF_IF_TYPE_0:
10390                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10391                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10392                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10393                 break;
10394         case LPFC_SLI_INTF_IF_TYPE_2:
10395                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10396                 break;
10397         case LPFC_SLI_INTF_IF_TYPE_6:
10398                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10399                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10400                 break;
10401         case LPFC_SLI_INTF_IF_TYPE_1:
10402         default:
10403                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10404                            "FATAL - unsupported SLI4 interface type - %d\n",
10405                            if_type);
10406                 break;
10407         }
10408 }
10409
10410 /**
10411  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10412  * @phba: pointer to lpfc hba data structure.
10413  *
10414  * This routine is invoked to enable the MSI-X interrupt vectors to device
10415  * with SLI-3 interface specs.
10416  *
10417  * Return codes
10418  *   0 - successful
10419  *   other values - error
10420  **/
10421 static int
10422 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10423 {
10424         int rc;
10425         LPFC_MBOXQ_t *pmb;
10426
10427         /* Set up MSI-X multi-message vectors */
10428         rc = pci_alloc_irq_vectors(phba->pcidev,
10429                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10430         if (rc < 0) {
10431                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10432                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10433                 goto vec_fail_out;
10434         }
10435
10436         /*
10437          * Assign MSI-X vectors to interrupt handlers
10438          */
10439
10440         /* vector-0 is associated to slow-path handler */
10441         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10442                          &lpfc_sli_sp_intr_handler, 0,
10443                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10444         if (rc) {
10445                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10446                                 "0421 MSI-X slow-path request_irq failed "
10447                                 "(%d)\n", rc);
10448                 goto msi_fail_out;
10449         }
10450
10451         /* vector-1 is associated to fast-path handler */
10452         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10453                          &lpfc_sli_fp_intr_handler, 0,
10454                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10455
10456         if (rc) {
10457                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10458                                 "0429 MSI-X fast-path request_irq failed "
10459                                 "(%d)\n", rc);
10460                 goto irq_fail_out;
10461         }
10462
10463         /*
10464          * Configure HBA MSI-X attention conditions to messages
10465          */
10466         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10467
10468         if (!pmb) {
10469                 rc = -ENOMEM;
10470                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10471                                 "0474 Unable to allocate memory for issuing "
10472                                 "MBOX_CONFIG_MSI command\n");
10473                 goto mem_fail_out;
10474         }
10475         rc = lpfc_config_msi(phba, pmb);
10476         if (rc)
10477                 goto mbx_fail_out;
10478         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10479         if (rc != MBX_SUCCESS) {
10480                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10481                                 "0351 Config MSI mailbox command failed, "
10482                                 "mbxCmd x%x, mbxStatus x%x\n",
10483                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10484                 goto mbx_fail_out;
10485         }
10486
10487         /* Free memory allocated for mailbox command */
10488         mempool_free(pmb, phba->mbox_mem_pool);
10489         return rc;
10490
10491 mbx_fail_out:
10492         /* Free memory allocated for mailbox command */
10493         mempool_free(pmb, phba->mbox_mem_pool);
10494
10495 mem_fail_out:
10496         /* free the irq already requested */
10497         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10498
10499 irq_fail_out:
10500         /* free the irq already requested */
10501         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10502
10503 msi_fail_out:
10504         /* Unconfigure MSI-X capability structure */
10505         pci_free_irq_vectors(phba->pcidev);
10506
10507 vec_fail_out:
10508         return rc;
10509 }
10510
10511 /**
10512  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10513  * @phba: pointer to lpfc hba data structure.
10514  *
10515  * This routine is invoked to enable the MSI interrupt mode to device with
10516  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10517  * enable the MSI vector. The device driver is responsible for calling the
10518  * request_irq() to register MSI vector with a interrupt the handler, which
10519  * is done in this function.
10520  *
10521  * Return codes
10522  *      0 - successful
10523  *      other values - error
10524  */
10525 static int
10526 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10527 {
10528         int rc;
10529
10530         rc = pci_enable_msi(phba->pcidev);
10531         if (!rc)
10532                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10533                                 "0462 PCI enable MSI mode success.\n");
10534         else {
10535                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10536                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10537                 return rc;
10538         }
10539
10540         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10541                          0, LPFC_DRIVER_NAME, phba);
10542         if (rc) {
10543                 pci_disable_msi(phba->pcidev);
10544                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10545                                 "0478 MSI request_irq failed (%d)\n", rc);
10546         }
10547         return rc;
10548 }
10549
10550 /**
10551  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10552  * @phba: pointer to lpfc hba data structure.
10553  *
10554  * This routine is invoked to enable device interrupt and associate driver's
10555  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10556  * spec. Depends on the interrupt mode configured to the driver, the driver
10557  * will try to fallback from the configured interrupt mode to an interrupt
10558  * mode which is supported by the platform, kernel, and device in the order
10559  * of:
10560  * MSI-X -> MSI -> IRQ.
10561  *
10562  * Return codes
10563  *   0 - successful
10564  *   other values - error
10565  **/
10566 static uint32_t
10567 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10568 {
10569         uint32_t intr_mode = LPFC_INTR_ERROR;
10570         int retval;
10571
10572         if (cfg_mode == 2) {
10573                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10574                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10575                 if (!retval) {
10576                         /* Now, try to enable MSI-X interrupt mode */
10577                         retval = lpfc_sli_enable_msix(phba);
10578                         if (!retval) {
10579                                 /* Indicate initialization to MSI-X mode */
10580                                 phba->intr_type = MSIX;
10581                                 intr_mode = 2;
10582                         }
10583                 }
10584         }
10585
10586         /* Fallback to MSI if MSI-X initialization failed */
10587         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10588                 retval = lpfc_sli_enable_msi(phba);
10589                 if (!retval) {
10590                         /* Indicate initialization to MSI mode */
10591                         phba->intr_type = MSI;
10592                         intr_mode = 1;
10593                 }
10594         }
10595
10596         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10597         if (phba->intr_type == NONE) {
10598                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10599                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10600                 if (!retval) {
10601                         /* Indicate initialization to INTx mode */
10602                         phba->intr_type = INTx;
10603                         intr_mode = 0;
10604                 }
10605         }
10606         return intr_mode;
10607 }
10608
10609 /**
10610  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10611  * @phba: pointer to lpfc hba data structure.
10612  *
10613  * This routine is invoked to disable device interrupt and disassociate the
10614  * driver's interrupt handler(s) from interrupt vector(s) to device with
10615  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10616  * release the interrupt vector(s) for the message signaled interrupt.
10617  **/
10618 static void
10619 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10620 {
10621         int nr_irqs, i;
10622
10623         if (phba->intr_type == MSIX)
10624                 nr_irqs = LPFC_MSIX_VECTORS;
10625         else
10626                 nr_irqs = 1;
10627
10628         for (i = 0; i < nr_irqs; i++)
10629                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10630         pci_free_irq_vectors(phba->pcidev);
10631
10632         /* Reset interrupt management states */
10633         phba->intr_type = NONE;
10634         phba->sli.slistat.sli_intr = 0;
10635 }
10636
10637 /**
10638  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10639  * @phba: pointer to lpfc hba data structure.
10640  * @id: EQ vector index or Hardware Queue index
10641  * @match: LPFC_FIND_BY_EQ = match by EQ
10642  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10643  * Return the CPU that matches the selection criteria
10644  */
10645 static uint16_t
10646 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10647 {
10648         struct lpfc_vector_map_info *cpup;
10649         int cpu;
10650
10651         /* Loop through all CPUs */
10652         for_each_present_cpu(cpu) {
10653                 cpup = &phba->sli4_hba.cpu_map[cpu];
10654
10655                 /* If we are matching by EQ, there may be multiple CPUs using
10656                  * using the same vector, so select the one with
10657                  * LPFC_CPU_FIRST_IRQ set.
10658                  */
10659                 if ((match == LPFC_FIND_BY_EQ) &&
10660                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10661                     (cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10662                     (cpup->eq == id))
10663                         return cpu;
10664
10665                 /* If matching by HDWQ, select the first CPU that matches */
10666                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10667                         return cpu;
10668         }
10669         return 0;
10670 }
10671
10672 #ifdef CONFIG_X86
10673 /**
10674  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10675  * @phba: pointer to lpfc hba data structure.
10676  * @cpu: CPU map index
10677  * @phys_id: CPU package physical id
10678  * @core_id: CPU core id
10679  */
10680 static int
10681 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10682                 uint16_t phys_id, uint16_t core_id)
10683 {
10684         struct lpfc_vector_map_info *cpup;
10685         int idx;
10686
10687         for_each_present_cpu(idx) {
10688                 cpup = &phba->sli4_hba.cpu_map[idx];
10689                 /* Does the cpup match the one we are looking for */
10690                 if ((cpup->phys_id == phys_id) &&
10691                     (cpup->core_id == core_id) &&
10692                     (cpu != idx))
10693                         return 1;
10694         }
10695         return 0;
10696 }
10697 #endif
10698
10699 /**
10700  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10701  * @phba: pointer to lpfc hba data structure.
10702  * @vectors: number of msix vectors allocated.
10703  *
10704  * The routine will figure out the CPU affinity assignment for every
10705  * MSI-X vector allocated for the HBA.
10706  * In addition, the CPU to IO channel mapping will be calculated
10707  * and the phba->sli4_hba.cpu_map array will reflect this.
10708  */
10709 static void
10710 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10711 {
10712         int i, cpu, idx, new_cpu, start_cpu, first_cpu;
10713         int max_phys_id, min_phys_id;
10714         int max_core_id, min_core_id;
10715         struct lpfc_vector_map_info *cpup;
10716         struct lpfc_vector_map_info *new_cpup;
10717         const struct cpumask *maskp;
10718 #ifdef CONFIG_X86
10719         struct cpuinfo_x86 *cpuinfo;
10720 #endif
10721
10722         /* Init cpu_map array */
10723         for_each_possible_cpu(cpu) {
10724                 cpup = &phba->sli4_hba.cpu_map[cpu];
10725                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10726                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10727                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10728                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10729                 cpup->irq = LPFC_VECTOR_MAP_EMPTY;
10730                 cpup->flag = 0;
10731         }
10732
10733         max_phys_id = 0;
10734         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10735         max_core_id = 0;
10736         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10737
10738         /* Update CPU map with physical id and core id of each CPU */
10739         for_each_present_cpu(cpu) {
10740                 cpup = &phba->sli4_hba.cpu_map[cpu];
10741 #ifdef CONFIG_X86
10742                 cpuinfo = &cpu_data(cpu);
10743                 cpup->phys_id = cpuinfo->phys_proc_id;
10744                 cpup->core_id = cpuinfo->cpu_core_id;
10745                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10746                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10747 #else
10748                 /* No distinction between CPUs for other platforms */
10749                 cpup->phys_id = 0;
10750                 cpup->core_id = cpu;
10751 #endif
10752
10753                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10754                                 "3328 CPU physid %d coreid %d\n",
10755                                 cpup->phys_id, cpup->core_id);
10756
10757                 if (cpup->phys_id > max_phys_id)
10758                         max_phys_id = cpup->phys_id;
10759                 if (cpup->phys_id < min_phys_id)
10760                         min_phys_id = cpup->phys_id;
10761
10762                 if (cpup->core_id > max_core_id)
10763                         max_core_id = cpup->core_id;
10764                 if (cpup->core_id < min_core_id)
10765                         min_core_id = cpup->core_id;
10766         }
10767
10768         for_each_possible_cpu(i) {
10769                 struct lpfc_eq_intr_info *eqi =
10770                         per_cpu_ptr(phba->sli4_hba.eq_info, i);
10771
10772                 INIT_LIST_HEAD(&eqi->list);
10773                 eqi->icnt = 0;
10774         }
10775
10776         /* This loop sets up all CPUs that are affinitized with a
10777          * irq vector assigned to the driver. All affinitized CPUs
10778          * will get a link to that vectors IRQ and EQ.
10779          */
10780         for (idx = 0; idx <  phba->cfg_irq_chann; idx++) {
10781                 /* Get a CPU mask for all CPUs affinitized to this vector */
10782                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
10783                 if (!maskp)
10784                         continue;
10785
10786                 i = 0;
10787                 /* Loop through all CPUs associated with vector idx */
10788                 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
10789                         /* Set the EQ index and IRQ for that vector */
10790                         cpup = &phba->sli4_hba.cpu_map[cpu];
10791                         cpup->eq = idx;
10792                         cpup->irq = pci_irq_vector(phba->pcidev, idx);
10793
10794                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10795                                         "3336 Set Affinity: CPU %d "
10796                                         "irq %d eq %d\n",
10797                                         cpu, cpup->irq, cpup->eq);
10798
10799                         /* If this is the first CPU thats assigned to this
10800                          * vector, set LPFC_CPU_FIRST_IRQ.
10801                          */
10802                         if (!i)
10803                                 cpup->flag |= LPFC_CPU_FIRST_IRQ;
10804                         i++;
10805                 }
10806         }
10807
10808         /* After looking at each irq vector assigned to this pcidev, its
10809          * possible to see that not ALL CPUs have been accounted for.
10810          * Next we will set any unassigned (unaffinitized) cpu map
10811          * entries to a IRQ on the same phys_id.
10812          */
10813         first_cpu = cpumask_first(cpu_present_mask);
10814         start_cpu = first_cpu;
10815
10816         for_each_present_cpu(cpu) {
10817                 cpup = &phba->sli4_hba.cpu_map[cpu];
10818
10819                 /* Is this CPU entry unassigned */
10820                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10821                         /* Mark CPU as IRQ not assigned by the kernel */
10822                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10823
10824                         /* If so, find a new_cpup thats on the the SAME
10825                          * phys_id as cpup. start_cpu will start where we
10826                          * left off so all unassigned entries don't get assgined
10827                          * the IRQ of the first entry.
10828                          */
10829                         new_cpu = start_cpu;
10830                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10831                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10832                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10833                                     (new_cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10834                                     (new_cpup->phys_id == cpup->phys_id))
10835                                         goto found_same;
10836                                 new_cpu = cpumask_next(
10837                                         new_cpu, cpu_present_mask);
10838                                 if (new_cpu == nr_cpumask_bits)
10839                                         new_cpu = first_cpu;
10840                         }
10841                         /* At this point, we leave the CPU as unassigned */
10842                         continue;
10843 found_same:
10844                         /* We found a matching phys_id, so copy the IRQ info */
10845                         cpup->eq = new_cpup->eq;
10846                         cpup->irq = new_cpup->irq;
10847
10848                         /* Bump start_cpu to the next slot to minmize the
10849                          * chance of having multiple unassigned CPU entries
10850                          * selecting the same IRQ.
10851                          */
10852                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10853                         if (start_cpu == nr_cpumask_bits)
10854                                 start_cpu = first_cpu;
10855
10856                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10857                                         "3337 Set Affinity: CPU %d "
10858                                         "irq %d from id %d same "
10859                                         "phys_id (%d)\n",
10860                                         cpu, cpup->irq, new_cpu, cpup->phys_id);
10861                 }
10862         }
10863
10864         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10865         start_cpu = first_cpu;
10866
10867         for_each_present_cpu(cpu) {
10868                 cpup = &phba->sli4_hba.cpu_map[cpu];
10869
10870                 /* Is this entry unassigned */
10871                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10872                         /* Mark it as IRQ not assigned by the kernel */
10873                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10874
10875                         /* If so, find a new_cpup thats on ANY phys_id
10876                          * as the cpup. start_cpu will start where we
10877                          * left off so all unassigned entries don't get
10878                          * assigned the IRQ of the first entry.
10879                          */
10880                         new_cpu = start_cpu;
10881                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10882                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10883                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10884                                     (new_cpup->irq != LPFC_VECTOR_MAP_EMPTY))
10885                                         goto found_any;
10886                                 new_cpu = cpumask_next(
10887                                         new_cpu, cpu_present_mask);
10888                                 if (new_cpu == nr_cpumask_bits)
10889                                         new_cpu = first_cpu;
10890                         }
10891                         /* We should never leave an entry unassigned */
10892                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10893                                         "3339 Set Affinity: CPU %d "
10894                                         "irq %d UNASSIGNED\n",
10895                                         cpup->hdwq, cpup->irq);
10896                         continue;
10897 found_any:
10898                         /* We found an available entry, copy the IRQ info */
10899                         cpup->eq = new_cpup->eq;
10900                         cpup->irq = new_cpup->irq;
10901
10902                         /* Bump start_cpu to the next slot to minmize the
10903                          * chance of having multiple unassigned CPU entries
10904                          * selecting the same IRQ.
10905                          */
10906                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10907                         if (start_cpu == nr_cpumask_bits)
10908                                 start_cpu = first_cpu;
10909
10910                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10911                                         "3338 Set Affinity: CPU %d "
10912                                         "irq %d from id %d (%d/%d)\n",
10913                                         cpu, cpup->irq, new_cpu,
10914                                         new_cpup->phys_id, new_cpup->core_id);
10915                 }
10916         }
10917
10918         /* Finally we need to associate a hdwq with each cpu_map entry
10919          * This will be 1 to 1 - hdwq to cpu, unless there are less
10920          * hardware queues then CPUs. For that case we will just round-robin
10921          * the available hardware queues as they get assigned to CPUs.
10922          */
10923         idx = 0;
10924         start_cpu = 0;
10925         for_each_present_cpu(cpu) {
10926                 cpup = &phba->sli4_hba.cpu_map[cpu];
10927                 if (idx >=  phba->cfg_hdw_queue) {
10928                         /* We need to reuse a Hardware Queue for another CPU,
10929                          * so be smart about it and pick one that has its
10930                          * IRQ/EQ mapped to the same phys_id (CPU package).
10931                          * and core_id.
10932                          */
10933                         new_cpu = start_cpu;
10934                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10935                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10936                                 if ((new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY) &&
10937                                     (new_cpup->phys_id == cpup->phys_id) &&
10938                                     (new_cpup->core_id == cpup->core_id))
10939                                         goto found_hdwq;
10940                                 new_cpu = cpumask_next(
10941                                         new_cpu, cpu_present_mask);
10942                                 if (new_cpu == nr_cpumask_bits)
10943                                         new_cpu = first_cpu;
10944                         }
10945
10946                         /* If we can't match both phys_id and core_id,
10947                          * settle for just a phys_id match.
10948                          */
10949                         new_cpu = start_cpu;
10950                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10951                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10952                                 if ((new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY) &&
10953                                     (new_cpup->phys_id == cpup->phys_id))
10954                                         goto found_hdwq;
10955                                 new_cpu = cpumask_next(
10956                                         new_cpu, cpu_present_mask);
10957                                 if (new_cpu == nr_cpumask_bits)
10958                                         new_cpu = first_cpu;
10959                         }
10960
10961                         /* Otherwise just round robin on cfg_hdw_queue */
10962                         cpup->hdwq = idx % phba->cfg_hdw_queue;
10963                         goto logit;
10964 found_hdwq:
10965                         /* We found an available entry, copy the IRQ info */
10966                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10967                         if (start_cpu == nr_cpumask_bits)
10968                                 start_cpu = first_cpu;
10969                         cpup->hdwq = new_cpup->hdwq;
10970                 } else {
10971                         /* 1 to 1, CPU to hdwq */
10972                         cpup->hdwq = idx;
10973                 }
10974 logit:
10975                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10976                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
10977                                 "hdwq %d eq %d irq %d flg x%x\n",
10978                                 cpu, cpup->phys_id, cpup->core_id,
10979                                 cpup->hdwq, cpup->eq, cpup->irq, cpup->flag);
10980                 idx++;
10981         }
10982
10983         /* The cpu_map array will be used later during initialization
10984          * when EQ / CQ / WQs are allocated and configured.
10985          */
10986         return;
10987 }
10988
10989 /**
10990  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10991  * @phba: pointer to lpfc hba data structure.
10992  *
10993  * This routine is invoked to enable the MSI-X interrupt vectors to device
10994  * with SLI-4 interface spec.
10995  *
10996  * Return codes
10997  * 0 - successful
10998  * other values - error
10999  **/
11000 static int
11001 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11002 {
11003         int vectors, rc, index;
11004         char *name;
11005
11006         /* Set up MSI-X multi-message vectors */
11007         vectors = phba->cfg_irq_chann;
11008
11009         rc = pci_alloc_irq_vectors(phba->pcidev,
11010                                 1,
11011                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
11012         if (rc < 0) {
11013                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11014                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
11015                 goto vec_fail_out;
11016         }
11017         vectors = rc;
11018
11019         /* Assign MSI-X vectors to interrupt handlers */
11020         for (index = 0; index < vectors; index++) {
11021                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
11022                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11023                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11024                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11025
11026                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
11027                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
11028                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11029                          &lpfc_sli4_hba_intr_handler, 0,
11030                          name,
11031                          &phba->sli4_hba.hba_eq_hdl[index]);
11032                 if (rc) {
11033                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11034                                         "0486 MSI-X fast-path (%d) "
11035                                         "request_irq failed (%d)\n", index, rc);
11036                         goto cfg_fail_out;
11037                 }
11038         }
11039
11040         if (vectors != phba->cfg_irq_chann) {
11041                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11042                                 "3238 Reducing IO channels to match number of "
11043                                 "MSI-X vectors, requested %d got %d\n",
11044                                 phba->cfg_irq_chann, vectors);
11045                 if (phba->cfg_irq_chann > vectors)
11046                         phba->cfg_irq_chann = vectors;
11047                 if (phba->nvmet_support && (phba->cfg_nvmet_mrq > vectors))
11048                         phba->cfg_nvmet_mrq = vectors;
11049         }
11050
11051         return rc;
11052
11053 cfg_fail_out:
11054         /* free the irq already requested */
11055         for (--index; index >= 0; index--)
11056                 free_irq(pci_irq_vector(phba->pcidev, index),
11057                                 &phba->sli4_hba.hba_eq_hdl[index]);
11058
11059         /* Unconfigure MSI-X capability structure */
11060         pci_free_irq_vectors(phba->pcidev);
11061
11062 vec_fail_out:
11063         return rc;
11064 }
11065
11066 /**
11067  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11068  * @phba: pointer to lpfc hba data structure.
11069  *
11070  * This routine is invoked to enable the MSI interrupt mode to device with
11071  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
11072  * to enable the MSI vector. The device driver is responsible for calling
11073  * the request_irq() to register MSI vector with a interrupt the handler,
11074  * which is done in this function.
11075  *
11076  * Return codes
11077  *      0 - successful
11078  *      other values - error
11079  **/
11080 static int
11081 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11082 {
11083         int rc, index;
11084
11085         rc = pci_enable_msi(phba->pcidev);
11086         if (!rc)
11087                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11088                                 "0487 PCI enable MSI mode success.\n");
11089         else {
11090                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11091                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11092                 return rc;
11093         }
11094
11095         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11096                          0, LPFC_DRIVER_NAME, phba);
11097         if (rc) {
11098                 pci_disable_msi(phba->pcidev);
11099                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11100                                 "0490 MSI request_irq failed (%d)\n", rc);
11101                 return rc;
11102         }
11103
11104         for (index = 0; index < phba->cfg_irq_chann; index++) {
11105                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
11106                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
11107         }
11108
11109         return 0;
11110 }
11111
11112 /**
11113  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11114  * @phba: pointer to lpfc hba data structure.
11115  *
11116  * This routine is invoked to enable device interrupt and associate driver's
11117  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11118  * interface spec. Depends on the interrupt mode configured to the driver,
11119  * the driver will try to fallback from the configured interrupt mode to an
11120  * interrupt mode which is supported by the platform, kernel, and device in
11121  * the order of:
11122  * MSI-X -> MSI -> IRQ.
11123  *
11124  * Return codes
11125  *      0 - successful
11126  *      other values - error
11127  **/
11128 static uint32_t
11129 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11130 {
11131         uint32_t intr_mode = LPFC_INTR_ERROR;
11132         int retval, idx;
11133
11134         if (cfg_mode == 2) {
11135                 /* Preparation before conf_msi mbox cmd */
11136                 retval = 0;
11137                 if (!retval) {
11138                         /* Now, try to enable MSI-X interrupt mode */
11139                         retval = lpfc_sli4_enable_msix(phba);
11140                         if (!retval) {
11141                                 /* Indicate initialization to MSI-X mode */
11142                                 phba->intr_type = MSIX;
11143                                 intr_mode = 2;
11144                         }
11145                 }
11146         }
11147
11148         /* Fallback to MSI if MSI-X initialization failed */
11149         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11150                 retval = lpfc_sli4_enable_msi(phba);
11151                 if (!retval) {
11152                         /* Indicate initialization to MSI mode */
11153                         phba->intr_type = MSI;
11154                         intr_mode = 1;
11155                 }
11156         }
11157
11158         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11159         if (phba->intr_type == NONE) {
11160                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11161                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11162                 if (!retval) {
11163                         struct lpfc_hba_eq_hdl *eqhdl;
11164
11165                         /* Indicate initialization to INTx mode */
11166                         phba->intr_type = INTx;
11167                         intr_mode = 0;
11168
11169                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11170                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
11171                                 eqhdl->idx = idx;
11172                                 eqhdl->phba = phba;
11173                         }
11174                 }
11175         }
11176         return intr_mode;
11177 }
11178
11179 /**
11180  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11181  * @phba: pointer to lpfc hba data structure.
11182  *
11183  * This routine is invoked to disable device interrupt and disassociate
11184  * the driver's interrupt handler(s) from interrupt vector(s) to device
11185  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11186  * will release the interrupt vector(s) for the message signaled interrupt.
11187  **/
11188 static void
11189 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11190 {
11191         /* Disable the currently initialized interrupt mode */
11192         if (phba->intr_type == MSIX) {
11193                 int index;
11194
11195                 /* Free up MSI-X multi-message vectors */
11196                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11197                         irq_set_affinity_hint(
11198                                 pci_irq_vector(phba->pcidev, index),
11199                                 NULL);
11200                         free_irq(pci_irq_vector(phba->pcidev, index),
11201                                         &phba->sli4_hba.hba_eq_hdl[index]);
11202                 }
11203         } else {
11204                 free_irq(phba->pcidev->irq, phba);
11205         }
11206
11207         pci_free_irq_vectors(phba->pcidev);
11208
11209         /* Reset interrupt management states */
11210         phba->intr_type = NONE;
11211         phba->sli.slistat.sli_intr = 0;
11212 }
11213
11214 /**
11215  * lpfc_unset_hba - Unset SLI3 hba device initialization
11216  * @phba: pointer to lpfc hba data structure.
11217  *
11218  * This routine is invoked to unset the HBA device initialization steps to
11219  * a device with SLI-3 interface spec.
11220  **/
11221 static void
11222 lpfc_unset_hba(struct lpfc_hba *phba)
11223 {
11224         struct lpfc_vport *vport = phba->pport;
11225         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11226
11227         spin_lock_irq(shost->host_lock);
11228         vport->load_flag |= FC_UNLOADING;
11229         spin_unlock_irq(shost->host_lock);
11230
11231         kfree(phba->vpi_bmask);
11232         kfree(phba->vpi_ids);
11233
11234         lpfc_stop_hba_timers(phba);
11235
11236         phba->pport->work_port_events = 0;
11237
11238         lpfc_sli_hba_down(phba);
11239
11240         lpfc_sli_brdrestart(phba);
11241
11242         lpfc_sli_disable_intr(phba);
11243
11244         return;
11245 }
11246
11247 /**
11248  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11249  * @phba: Pointer to HBA context object.
11250  *
11251  * This function is called in the SLI4 code path to wait for completion
11252  * of device's XRIs exchange busy. It will check the XRI exchange busy
11253  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11254  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11255  * I/Os every 30 seconds, log error message, and wait forever. Only when
11256  * all XRI exchange busy complete, the driver unload shall proceed with
11257  * invoking the function reset ioctl mailbox command to the CNA and the
11258  * the rest of the driver unload resource release.
11259  **/
11260 static void
11261 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11262 {
11263         struct lpfc_sli4_hdw_queue *qp;
11264         int idx, ccnt, fcnt;
11265         int wait_time = 0;
11266         int io_xri_cmpl = 1;
11267         int nvmet_xri_cmpl = 1;
11268         int fcp_xri_cmpl = 1;
11269         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11270
11271         /* Driver just aborted IOs during the hba_unset process.  Pause
11272          * here to give the HBA time to complete the IO and get entries
11273          * into the abts lists.
11274          */
11275         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11276
11277         /* Wait for NVME pending IO to flush back to transport. */
11278         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11279                 lpfc_nvme_wait_for_io_drain(phba);
11280
11281         ccnt = 0;
11282         fcnt = 0;
11283         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11284                 qp = &phba->sli4_hba.hdwq[idx];
11285                 fcp_xri_cmpl = list_empty(
11286                         &qp->lpfc_abts_scsi_buf_list);
11287                 if (!fcp_xri_cmpl) /* if list is NOT empty */
11288                         fcnt++;
11289                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11290                         io_xri_cmpl = list_empty(
11291                                 &qp->lpfc_abts_nvme_buf_list);
11292                         if (!io_xri_cmpl) /* if list is NOT empty */
11293                                 ccnt++;
11294                 }
11295         }
11296         if (ccnt)
11297                 io_xri_cmpl = 0;
11298         if (fcnt)
11299                 fcp_xri_cmpl = 0;
11300
11301         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11302                 nvmet_xri_cmpl =
11303                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11304         }
11305
11306         while (!fcp_xri_cmpl || !els_xri_cmpl || !io_xri_cmpl ||
11307                !nvmet_xri_cmpl) {
11308                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11309                         if (!nvmet_xri_cmpl)
11310                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11311                                                 "6424 NVMET XRI exchange busy "
11312                                                 "wait time: %d seconds.\n",
11313                                                 wait_time/1000);
11314                         if (!io_xri_cmpl)
11315                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11316                                                 "6100 NVME XRI exchange busy "
11317                                                 "wait time: %d seconds.\n",
11318                                                 wait_time/1000);
11319                         if (!fcp_xri_cmpl)
11320                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11321                                                 "2877 FCP XRI exchange busy "
11322                                                 "wait time: %d seconds.\n",
11323                                                 wait_time/1000);
11324                         if (!els_xri_cmpl)
11325                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11326                                                 "2878 ELS XRI exchange busy "
11327                                                 "wait time: %d seconds.\n",
11328                                                 wait_time/1000);
11329                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11330                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11331                 } else {
11332                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11333                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11334                 }
11335
11336                 ccnt = 0;
11337                 fcnt = 0;
11338                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11339                         qp = &phba->sli4_hba.hdwq[idx];
11340                         fcp_xri_cmpl = list_empty(
11341                                 &qp->lpfc_abts_scsi_buf_list);
11342                         if (!fcp_xri_cmpl) /* if list is NOT empty */
11343                                 fcnt++;
11344                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11345                                 io_xri_cmpl = list_empty(
11346                                     &qp->lpfc_abts_nvme_buf_list);
11347                                 if (!io_xri_cmpl) /* if list is NOT empty */
11348                                         ccnt++;
11349                         }
11350                 }
11351                 if (ccnt)
11352                         io_xri_cmpl = 0;
11353                 if (fcnt)
11354                         fcp_xri_cmpl = 0;
11355
11356                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11357                         nvmet_xri_cmpl = list_empty(
11358                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11359                 }
11360                 els_xri_cmpl =
11361                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11362
11363         }
11364 }
11365
11366 /**
11367  * lpfc_sli4_hba_unset - Unset the fcoe hba
11368  * @phba: Pointer to HBA context object.
11369  *
11370  * This function is called in the SLI4 code path to reset the HBA's FCoE
11371  * function. The caller is not required to hold any lock. This routine
11372  * issues PCI function reset mailbox command to reset the FCoE function.
11373  * At the end of the function, it calls lpfc_hba_down_post function to
11374  * free any pending commands.
11375  **/
11376 static void
11377 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11378 {
11379         int wait_cnt = 0;
11380         LPFC_MBOXQ_t *mboxq;
11381         struct pci_dev *pdev = phba->pcidev;
11382
11383         lpfc_stop_hba_timers(phba);
11384         if (phba->pport)
11385                 phba->sli4_hba.intr_enable = 0;
11386
11387         /*
11388          * Gracefully wait out the potential current outstanding asynchronous
11389          * mailbox command.
11390          */
11391
11392         /* First, block any pending async mailbox command from posted */
11393         spin_lock_irq(&phba->hbalock);
11394         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11395         spin_unlock_irq(&phba->hbalock);
11396         /* Now, trying to wait it out if we can */
11397         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11398                 msleep(10);
11399                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11400                         break;
11401         }
11402         /* Forcefully release the outstanding mailbox command if timed out */
11403         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11404                 spin_lock_irq(&phba->hbalock);
11405                 mboxq = phba->sli.mbox_active;
11406                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11407                 __lpfc_mbox_cmpl_put(phba, mboxq);
11408                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11409                 phba->sli.mbox_active = NULL;
11410                 spin_unlock_irq(&phba->hbalock);
11411         }
11412
11413         /* Abort all iocbs associated with the hba */
11414         lpfc_sli_hba_iocb_abort(phba);
11415
11416         /* Wait for completion of device XRI exchange busy */
11417         lpfc_sli4_xri_exchange_busy_wait(phba);
11418
11419         /* Disable PCI subsystem interrupt */
11420         lpfc_sli4_disable_intr(phba);
11421
11422         /* Disable SR-IOV if enabled */
11423         if (phba->cfg_sriov_nr_virtfn)
11424                 pci_disable_sriov(pdev);
11425
11426         /* Stop kthread signal shall trigger work_done one more time */
11427         kthread_stop(phba->worker_thread);
11428
11429         /* Disable FW logging to host memory */
11430         lpfc_ras_stop_fwlog(phba);
11431
11432         /* Unset the queues shared with the hardware then release all
11433          * allocated resources.
11434          */
11435         lpfc_sli4_queue_unset(phba);
11436         lpfc_sli4_queue_destroy(phba);
11437
11438         /* Reset SLI4 HBA FCoE function */
11439         lpfc_pci_function_reset(phba);
11440
11441         /* Free RAS DMA memory */
11442         if (phba->ras_fwlog.ras_enabled)
11443                 lpfc_sli4_ras_dma_free(phba);
11444
11445         /* Stop the SLI4 device port */
11446         if (phba->pport)
11447                 phba->pport->work_port_events = 0;
11448 }
11449
11450  /**
11451  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11452  * @phba: Pointer to HBA context object.
11453  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11454  *
11455  * This function is called in the SLI4 code path to read the port's
11456  * sli4 capabilities.
11457  *
11458  * This function may be be called from any context that can block-wait
11459  * for the completion.  The expectation is that this routine is called
11460  * typically from probe_one or from the online routine.
11461  **/
11462 int
11463 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11464 {
11465         int rc;
11466         struct lpfc_mqe *mqe;
11467         struct lpfc_pc_sli4_params *sli4_params;
11468         uint32_t mbox_tmo;
11469
11470         rc = 0;
11471         mqe = &mboxq->u.mqe;
11472
11473         /* Read the port's SLI4 Parameters port capabilities */
11474         lpfc_pc_sli4_params(mboxq);
11475         if (!phba->sli4_hba.intr_enable)
11476                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11477         else {
11478                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11479                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11480         }
11481
11482         if (unlikely(rc))
11483                 return 1;
11484
11485         sli4_params = &phba->sli4_hba.pc_sli4_params;
11486         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11487         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11488         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11489         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11490                                              &mqe->un.sli4_params);
11491         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11492                                              &mqe->un.sli4_params);
11493         sli4_params->proto_types = mqe->un.sli4_params.word3;
11494         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11495         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11496         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11497         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11498         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11499         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11500         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11501         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11502         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11503         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11504         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11505         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11506         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11507         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11508         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11509         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11510         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11511         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11512         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11513         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11514
11515         /* Make sure that sge_supp_len can be handled by the driver */
11516         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11517                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11518
11519         return rc;
11520 }
11521
11522 /**
11523  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11524  * @phba: Pointer to HBA context object.
11525  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11526  *
11527  * This function is called in the SLI4 code path to read the port's
11528  * sli4 capabilities.
11529  *
11530  * This function may be be called from any context that can block-wait
11531  * for the completion.  The expectation is that this routine is called
11532  * typically from probe_one or from the online routine.
11533  **/
11534 int
11535 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11536 {
11537         int rc;
11538         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11539         struct lpfc_pc_sli4_params *sli4_params;
11540         uint32_t mbox_tmo;
11541         int length;
11542         bool exp_wqcq_pages = true;
11543         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11544
11545         /*
11546          * By default, the driver assumes the SLI4 port requires RPI
11547          * header postings.  The SLI4_PARAM response will correct this
11548          * assumption.
11549          */
11550         phba->sli4_hba.rpi_hdrs_in_use = 1;
11551
11552         /* Read the port's SLI4 Config Parameters */
11553         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11554                   sizeof(struct lpfc_sli4_cfg_mhdr));
11555         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11556                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11557                          length, LPFC_SLI4_MBX_EMBED);
11558         if (!phba->sli4_hba.intr_enable)
11559                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11560         else {
11561                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11562                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11563         }
11564         if (unlikely(rc))
11565                 return rc;
11566         sli4_params = &phba->sli4_hba.pc_sli4_params;
11567         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11568         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11569         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
11570         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
11571         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
11572                                              mbx_sli4_parameters);
11573         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
11574                                              mbx_sli4_parameters);
11575         if (bf_get(cfg_phwq, mbx_sli4_parameters))
11576                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
11577         else
11578                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
11579         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
11580         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
11581         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
11582         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
11583         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
11584         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
11585         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
11586         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
11587         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
11588         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
11589         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
11590         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
11591                                             mbx_sli4_parameters);
11592         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
11593         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
11594                                            mbx_sli4_parameters);
11595         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
11596         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
11597
11598         /* Check for firmware nvme support */
11599         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
11600                      bf_get(cfg_xib, mbx_sli4_parameters));
11601
11602         if (rc) {
11603                 /* Save this to indicate the Firmware supports NVME */
11604                 sli4_params->nvme = 1;
11605
11606                 /* Firmware NVME support, check driver FC4 NVME support */
11607                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
11608                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11609                                         "6133 Disabling NVME support: "
11610                                         "FC4 type not supported: x%x\n",
11611                                         phba->cfg_enable_fc4_type);
11612                         goto fcponly;
11613                 }
11614         } else {
11615                 /* No firmware NVME support, check driver FC4 NVME support */
11616                 sli4_params->nvme = 0;
11617                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11618                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
11619                                         "6101 Disabling NVME support: Not "
11620                                         "supported by firmware (%d %d) x%x\n",
11621                                         bf_get(cfg_nvme, mbx_sli4_parameters),
11622                                         bf_get(cfg_xib, mbx_sli4_parameters),
11623                                         phba->cfg_enable_fc4_type);
11624 fcponly:
11625                         phba->nvme_support = 0;
11626                         phba->nvmet_support = 0;
11627                         phba->cfg_nvmet_mrq = 0;
11628
11629                         /* If no FC4 type support, move to just SCSI support */
11630                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
11631                                 return -ENODEV;
11632                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
11633                 }
11634         }
11635
11636         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
11637         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11638             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
11639                 phba->cfg_enable_pbde = 0;
11640
11641         /*
11642          * To support Suppress Response feature we must satisfy 3 conditions.
11643          * lpfc_suppress_rsp module parameter must be set (default).
11644          * In SLI4-Parameters Descriptor:
11645          * Extended Inline Buffers (XIB) must be supported.
11646          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
11647          * (double negative).
11648          */
11649         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
11650             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
11651                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
11652         else
11653                 phba->cfg_suppress_rsp = 0;
11654
11655         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
11656                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
11657
11658         /* Make sure that sge_supp_len can be handled by the driver */
11659         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11660                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11661
11662         /*
11663          * Check whether the adapter supports an embedded copy of the
11664          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
11665          * to use this option, 128-byte WQEs must be used.
11666          */
11667         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
11668                 phba->fcp_embed_io = 1;
11669         else
11670                 phba->fcp_embed_io = 0;
11671
11672         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11673                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
11674                         bf_get(cfg_xib, mbx_sli4_parameters),
11675                         phba->cfg_enable_pbde,
11676                         phba->fcp_embed_io, phba->nvme_support,
11677                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
11678
11679         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
11680             LPFC_SLI_INTF_IF_TYPE_2) &&
11681             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
11682                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
11683                 exp_wqcq_pages = false;
11684
11685         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
11686             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
11687             exp_wqcq_pages &&
11688             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
11689                 phba->enab_exp_wqcq_pages = 1;
11690         else
11691                 phba->enab_exp_wqcq_pages = 0;
11692         /*
11693          * Check if the SLI port supports MDS Diagnostics
11694          */
11695         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
11696                 phba->mds_diags_support = 1;
11697         else
11698                 phba->mds_diags_support = 0;
11699
11700         return 0;
11701 }
11702
11703 /**
11704  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
11705  * @pdev: pointer to PCI device
11706  * @pid: pointer to PCI device identifier
11707  *
11708  * This routine is to be called to attach a device with SLI-3 interface spec
11709  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11710  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11711  * information of the device and driver to see if the driver state that it can
11712  * support this kind of device. If the match is successful, the driver core
11713  * invokes this routine. If this routine determines it can claim the HBA, it
11714  * does all the initialization that it needs to do to handle the HBA properly.
11715  *
11716  * Return code
11717  *      0 - driver can claim the device
11718  *      negative value - driver can not claim the device
11719  **/
11720 static int
11721 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
11722 {
11723         struct lpfc_hba   *phba;
11724         struct lpfc_vport *vport = NULL;
11725         struct Scsi_Host  *shost = NULL;
11726         int error;
11727         uint32_t cfg_mode, intr_mode;
11728
11729         /* Allocate memory for HBA structure */
11730         phba = lpfc_hba_alloc(pdev);
11731         if (!phba)
11732                 return -ENOMEM;
11733
11734         /* Perform generic PCI device enabling operation */
11735         error = lpfc_enable_pci_dev(phba);
11736         if (error)
11737                 goto out_free_phba;
11738
11739         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
11740         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
11741         if (error)
11742                 goto out_disable_pci_dev;
11743
11744         /* Set up SLI-3 specific device PCI memory space */
11745         error = lpfc_sli_pci_mem_setup(phba);
11746         if (error) {
11747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11748                                 "1402 Failed to set up pci memory space.\n");
11749                 goto out_disable_pci_dev;
11750         }
11751
11752         /* Set up SLI-3 specific device driver resources */
11753         error = lpfc_sli_driver_resource_setup(phba);
11754         if (error) {
11755                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11756                                 "1404 Failed to set up driver resource.\n");
11757                 goto out_unset_pci_mem_s3;
11758         }
11759
11760         /* Initialize and populate the iocb list per host */
11761
11762         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11763         if (error) {
11764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11765                                 "1405 Failed to initialize iocb list.\n");
11766                 goto out_unset_driver_resource_s3;
11767         }
11768
11769         /* Set up common device driver resources */
11770         error = lpfc_setup_driver_resource_phase2(phba);
11771         if (error) {
11772                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11773                                 "1406 Failed to set up driver resource.\n");
11774                 goto out_free_iocb_list;
11775         }
11776
11777         /* Get the default values for Model Name and Description */
11778         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11779
11780         /* Create SCSI host to the physical port */
11781         error = lpfc_create_shost(phba);
11782         if (error) {
11783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11784                                 "1407 Failed to create scsi host.\n");
11785                 goto out_unset_driver_resource;
11786         }
11787
11788         /* Configure sysfs attributes */
11789         vport = phba->pport;
11790         error = lpfc_alloc_sysfs_attr(vport);
11791         if (error) {
11792                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11793                                 "1476 Failed to allocate sysfs attr\n");
11794                 goto out_destroy_shost;
11795         }
11796
11797         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11798         /* Now, trying to enable interrupt and bring up the device */
11799         cfg_mode = phba->cfg_use_msi;
11800         while (true) {
11801                 /* Put device to a known state before enabling interrupt */
11802                 lpfc_stop_port(phba);
11803                 /* Configure and enable interrupt */
11804                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11805                 if (intr_mode == LPFC_INTR_ERROR) {
11806                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11807                                         "0431 Failed to enable interrupt.\n");
11808                         error = -ENODEV;
11809                         goto out_free_sysfs_attr;
11810                 }
11811                 /* SLI-3 HBA setup */
11812                 if (lpfc_sli_hba_setup(phba)) {
11813                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11814                                         "1477 Failed to set up hba\n");
11815                         error = -ENODEV;
11816                         goto out_remove_device;
11817                 }
11818
11819                 /* Wait 50ms for the interrupts of previous mailbox commands */
11820                 msleep(50);
11821                 /* Check active interrupts on message signaled interrupts */
11822                 if (intr_mode == 0 ||
11823                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11824                         /* Log the current active interrupt mode */
11825                         phba->intr_mode = intr_mode;
11826                         lpfc_log_intr_mode(phba, intr_mode);
11827                         break;
11828                 } else {
11829                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11830                                         "0447 Configure interrupt mode (%d) "
11831                                         "failed active interrupt test.\n",
11832                                         intr_mode);
11833                         /* Disable the current interrupt mode */
11834                         lpfc_sli_disable_intr(phba);
11835                         /* Try next level of interrupt mode */
11836                         cfg_mode = --intr_mode;
11837                 }
11838         }
11839
11840         /* Perform post initialization setup */
11841         lpfc_post_init_setup(phba);
11842
11843         /* Check if there are static vports to be created. */
11844         lpfc_create_static_vport(phba);
11845
11846         return 0;
11847
11848 out_remove_device:
11849         lpfc_unset_hba(phba);
11850 out_free_sysfs_attr:
11851         lpfc_free_sysfs_attr(vport);
11852 out_destroy_shost:
11853         lpfc_destroy_shost(phba);
11854 out_unset_driver_resource:
11855         lpfc_unset_driver_resource_phase2(phba);
11856 out_free_iocb_list:
11857         lpfc_free_iocb_list(phba);
11858 out_unset_driver_resource_s3:
11859         lpfc_sli_driver_resource_unset(phba);
11860 out_unset_pci_mem_s3:
11861         lpfc_sli_pci_mem_unset(phba);
11862 out_disable_pci_dev:
11863         lpfc_disable_pci_dev(phba);
11864         if (shost)
11865                 scsi_host_put(shost);
11866 out_free_phba:
11867         lpfc_hba_free(phba);
11868         return error;
11869 }
11870
11871 /**
11872  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11873  * @pdev: pointer to PCI device
11874  *
11875  * This routine is to be called to disattach a device with SLI-3 interface
11876  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11877  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11878  * device to be removed from the PCI subsystem properly.
11879  **/
11880 static void
11881 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11882 {
11883         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11884         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11885         struct lpfc_vport **vports;
11886         struct lpfc_hba   *phba = vport->phba;
11887         int i;
11888
11889         spin_lock_irq(&phba->hbalock);
11890         vport->load_flag |= FC_UNLOADING;
11891         spin_unlock_irq(&phba->hbalock);
11892
11893         lpfc_free_sysfs_attr(vport);
11894
11895         /* Release all the vports against this physical port */
11896         vports = lpfc_create_vport_work_array(phba);
11897         if (vports != NULL)
11898                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11899                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11900                                 continue;
11901                         fc_vport_terminate(vports[i]->fc_vport);
11902                 }
11903         lpfc_destroy_vport_work_array(phba, vports);
11904
11905         /* Remove FC host and then SCSI host with the physical port */
11906         fc_remove_host(shost);
11907         scsi_remove_host(shost);
11908
11909         lpfc_cleanup(vport);
11910
11911         /*
11912          * Bring down the SLI Layer. This step disable all interrupts,
11913          * clears the rings, discards all mailbox commands, and resets
11914          * the HBA.
11915          */
11916
11917         /* HBA interrupt will be disabled after this call */
11918         lpfc_sli_hba_down(phba);
11919         /* Stop kthread signal shall trigger work_done one more time */
11920         kthread_stop(phba->worker_thread);
11921         /* Final cleanup of txcmplq and reset the HBA */
11922         lpfc_sli_brdrestart(phba);
11923
11924         kfree(phba->vpi_bmask);
11925         kfree(phba->vpi_ids);
11926
11927         lpfc_stop_hba_timers(phba);
11928         spin_lock_irq(&phba->port_list_lock);
11929         list_del_init(&vport->listentry);
11930         spin_unlock_irq(&phba->port_list_lock);
11931
11932         lpfc_debugfs_terminate(vport);
11933
11934         /* Disable SR-IOV if enabled */
11935         if (phba->cfg_sriov_nr_virtfn)
11936                 pci_disable_sriov(pdev);
11937
11938         /* Disable interrupt */
11939         lpfc_sli_disable_intr(phba);
11940
11941         scsi_host_put(shost);
11942
11943         /*
11944          * Call scsi_free before mem_free since scsi bufs are released to their
11945          * corresponding pools here.
11946          */
11947         lpfc_scsi_free(phba);
11948         lpfc_free_iocb_list(phba);
11949
11950         lpfc_mem_free_all(phba);
11951
11952         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11953                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11954
11955         /* Free resources associated with SLI2 interface */
11956         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11957                           phba->slim2p.virt, phba->slim2p.phys);
11958
11959         /* unmap adapter SLIM and Control Registers */
11960         iounmap(phba->ctrl_regs_memmap_p);
11961         iounmap(phba->slim_memmap_p);
11962
11963         lpfc_hba_free(phba);
11964
11965         pci_release_mem_regions(pdev);
11966         pci_disable_device(pdev);
11967 }
11968
11969 /**
11970  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11971  * @pdev: pointer to PCI device
11972  * @msg: power management message
11973  *
11974  * This routine is to be called from the kernel's PCI subsystem to support
11975  * system Power Management (PM) to device with SLI-3 interface spec. When
11976  * PM invokes this method, it quiesces the device by stopping the driver's
11977  * worker thread for the device, turning off device's interrupt and DMA,
11978  * and bring the device offline. Note that as the driver implements the
11979  * minimum PM requirements to a power-aware driver's PM support for the
11980  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11981  * to the suspend() method call will be treated as SUSPEND and the driver will
11982  * fully reinitialize its device during resume() method call, the driver will
11983  * set device to PCI_D3hot state in PCI config space instead of setting it
11984  * according to the @msg provided by the PM.
11985  *
11986  * Return code
11987  *      0 - driver suspended the device
11988  *      Error otherwise
11989  **/
11990 static int
11991 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11992 {
11993         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11994         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11995
11996         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11997                         "0473 PCI device Power Management suspend.\n");
11998
11999         /* Bring down the device */
12000         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12001         lpfc_offline(phba);
12002         kthread_stop(phba->worker_thread);
12003
12004         /* Disable interrupt from device */
12005         lpfc_sli_disable_intr(phba);
12006
12007         /* Save device state to PCI config space */
12008         pci_save_state(pdev);
12009         pci_set_power_state(pdev, PCI_D3hot);
12010
12011         return 0;
12012 }
12013
12014 /**
12015  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12016  * @pdev: pointer to PCI device
12017  *
12018  * This routine is to be called from the kernel's PCI subsystem to support
12019  * system Power Management (PM) to device with SLI-3 interface spec. When PM
12020  * invokes this method, it restores the device's PCI config space state and
12021  * fully reinitializes the device and brings it online. Note that as the
12022  * driver implements the minimum PM requirements to a power-aware driver's
12023  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12024  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12025  * driver will fully reinitialize its device during resume() method call,
12026  * the device will be set to PCI_D0 directly in PCI config space before
12027  * restoring the state.
12028  *
12029  * Return code
12030  *      0 - driver suspended the device
12031  *      Error otherwise
12032  **/
12033 static int
12034 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12035 {
12036         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12037         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12038         uint32_t intr_mode;
12039         int error;
12040
12041         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12042                         "0452 PCI device Power Management resume.\n");
12043
12044         /* Restore device state from PCI config space */
12045         pci_set_power_state(pdev, PCI_D0);
12046         pci_restore_state(pdev);
12047
12048         /*
12049          * As the new kernel behavior of pci_restore_state() API call clears
12050          * device saved_state flag, need to save the restored state again.
12051          */
12052         pci_save_state(pdev);
12053
12054         if (pdev->is_busmaster)
12055                 pci_set_master(pdev);
12056
12057         /* Startup the kernel thread for this host adapter. */
12058         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12059                                         "lpfc_worker_%d", phba->brd_no);
12060         if (IS_ERR(phba->worker_thread)) {
12061                 error = PTR_ERR(phba->worker_thread);
12062                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12063                                 "0434 PM resume failed to start worker "
12064                                 "thread: error=x%x.\n", error);
12065                 return error;
12066         }
12067
12068         /* Configure and enable interrupt */
12069         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12070         if (intr_mode == LPFC_INTR_ERROR) {
12071                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12072                                 "0430 PM resume Failed to enable interrupt\n");
12073                 return -EIO;
12074         } else
12075                 phba->intr_mode = intr_mode;
12076
12077         /* Restart HBA and bring it online */
12078         lpfc_sli_brdrestart(phba);
12079         lpfc_online(phba);
12080
12081         /* Log the current active interrupt mode */
12082         lpfc_log_intr_mode(phba, phba->intr_mode);
12083
12084         return 0;
12085 }
12086
12087 /**
12088  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12089  * @phba: pointer to lpfc hba data structure.
12090  *
12091  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12092  * aborts all the outstanding SCSI I/Os to the pci device.
12093  **/
12094 static void
12095 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12096 {
12097         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12098                         "2723 PCI channel I/O abort preparing for recovery\n");
12099
12100         /*
12101          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12102          * and let the SCSI mid-layer to retry them to recover.
12103          */
12104         lpfc_sli_abort_fcp_rings(phba);
12105 }
12106
12107 /**
12108  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12109  * @phba: pointer to lpfc hba data structure.
12110  *
12111  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12112  * disables the device interrupt and pci device, and aborts the internal FCP
12113  * pending I/Os.
12114  **/
12115 static void
12116 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12117 {
12118         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12119                         "2710 PCI channel disable preparing for reset\n");
12120
12121         /* Block any management I/Os to the device */
12122         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12123
12124         /* Block all SCSI devices' I/Os on the host */
12125         lpfc_scsi_dev_block(phba);
12126
12127         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12128         lpfc_sli_flush_fcp_rings(phba);
12129
12130         /* stop all timers */
12131         lpfc_stop_hba_timers(phba);
12132
12133         /* Disable interrupt and pci device */
12134         lpfc_sli_disable_intr(phba);
12135         pci_disable_device(phba->pcidev);
12136 }
12137
12138 /**
12139  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12140  * @phba: pointer to lpfc hba data structure.
12141  *
12142  * This routine is called to prepare the SLI3 device for PCI slot permanently
12143  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12144  * pending I/Os.
12145  **/
12146 static void
12147 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12148 {
12149         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12150                         "2711 PCI channel permanent disable for failure\n");
12151         /* Block all SCSI devices' I/Os on the host */
12152         lpfc_scsi_dev_block(phba);
12153
12154         /* stop all timers */
12155         lpfc_stop_hba_timers(phba);
12156
12157         /* Clean up all driver's outstanding SCSI I/Os */
12158         lpfc_sli_flush_fcp_rings(phba);
12159 }
12160
12161 /**
12162  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12163  * @pdev: pointer to PCI device.
12164  * @state: the current PCI connection state.
12165  *
12166  * This routine is called from the PCI subsystem for I/O error handling to
12167  * device with SLI-3 interface spec. This function is called by the PCI
12168  * subsystem after a PCI bus error affecting this device has been detected.
12169  * When this function is invoked, it will need to stop all the I/Os and
12170  * interrupt(s) to the device. Once that is done, it will return
12171  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12172  * as desired.
12173  *
12174  * Return codes
12175  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12176  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12177  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12178  **/
12179 static pci_ers_result_t
12180 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12181 {
12182         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12183         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12184
12185         switch (state) {
12186         case pci_channel_io_normal:
12187                 /* Non-fatal error, prepare for recovery */
12188                 lpfc_sli_prep_dev_for_recover(phba);
12189                 return PCI_ERS_RESULT_CAN_RECOVER;
12190         case pci_channel_io_frozen:
12191                 /* Fatal error, prepare for slot reset */
12192                 lpfc_sli_prep_dev_for_reset(phba);
12193                 return PCI_ERS_RESULT_NEED_RESET;
12194         case pci_channel_io_perm_failure:
12195                 /* Permanent failure, prepare for device down */
12196                 lpfc_sli_prep_dev_for_perm_failure(phba);
12197                 return PCI_ERS_RESULT_DISCONNECT;
12198         default:
12199                 /* Unknown state, prepare and request slot reset */
12200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12201                                 "0472 Unknown PCI error state: x%x\n", state);
12202                 lpfc_sli_prep_dev_for_reset(phba);
12203                 return PCI_ERS_RESULT_NEED_RESET;
12204         }
12205 }
12206
12207 /**
12208  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12209  * @pdev: pointer to PCI device.
12210  *
12211  * This routine is called from the PCI subsystem for error handling to
12212  * device with SLI-3 interface spec. This is called after PCI bus has been
12213  * reset to restart the PCI card from scratch, as if from a cold-boot.
12214  * During the PCI subsystem error recovery, after driver returns
12215  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12216  * recovery and then call this routine before calling the .resume method
12217  * to recover the device. This function will initialize the HBA device,
12218  * enable the interrupt, but it will just put the HBA to offline state
12219  * without passing any I/O traffic.
12220  *
12221  * Return codes
12222  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12223  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12224  */
12225 static pci_ers_result_t
12226 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12227 {
12228         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12229         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12230         struct lpfc_sli *psli = &phba->sli;
12231         uint32_t intr_mode;
12232
12233         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12234         if (pci_enable_device_mem(pdev)) {
12235                 printk(KERN_ERR "lpfc: Cannot re-enable "
12236                         "PCI device after reset.\n");
12237                 return PCI_ERS_RESULT_DISCONNECT;
12238         }
12239
12240         pci_restore_state(pdev);
12241
12242         /*
12243          * As the new kernel behavior of pci_restore_state() API call clears
12244          * device saved_state flag, need to save the restored state again.
12245          */
12246         pci_save_state(pdev);
12247
12248         if (pdev->is_busmaster)
12249                 pci_set_master(pdev);
12250
12251         spin_lock_irq(&phba->hbalock);
12252         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12253         spin_unlock_irq(&phba->hbalock);
12254
12255         /* Configure and enable interrupt */
12256         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12257         if (intr_mode == LPFC_INTR_ERROR) {
12258                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12259                                 "0427 Cannot re-enable interrupt after "
12260                                 "slot reset.\n");
12261                 return PCI_ERS_RESULT_DISCONNECT;
12262         } else
12263                 phba->intr_mode = intr_mode;
12264
12265         /* Take device offline, it will perform cleanup */
12266         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12267         lpfc_offline(phba);
12268         lpfc_sli_brdrestart(phba);
12269
12270         /* Log the current active interrupt mode */
12271         lpfc_log_intr_mode(phba, phba->intr_mode);
12272
12273         return PCI_ERS_RESULT_RECOVERED;
12274 }
12275
12276 /**
12277  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12278  * @pdev: pointer to PCI device
12279  *
12280  * This routine is called from the PCI subsystem for error handling to device
12281  * with SLI-3 interface spec. It is called when kernel error recovery tells
12282  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12283  * error recovery. After this call, traffic can start to flow from this device
12284  * again.
12285  */
12286 static void
12287 lpfc_io_resume_s3(struct pci_dev *pdev)
12288 {
12289         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12290         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12291
12292         /* Bring device online, it will be no-op for non-fatal error resume */
12293         lpfc_online(phba);
12294 }
12295
12296 /**
12297  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12298  * @phba: pointer to lpfc hba data structure.
12299  *
12300  * returns the number of ELS/CT IOCBs to reserve
12301  **/
12302 int
12303 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12304 {
12305         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12306
12307         if (phba->sli_rev == LPFC_SLI_REV4) {
12308                 if (max_xri <= 100)
12309                         return 10;
12310                 else if (max_xri <= 256)
12311                         return 25;
12312                 else if (max_xri <= 512)
12313                         return 50;
12314                 else if (max_xri <= 1024)
12315                         return 100;
12316                 else if (max_xri <= 1536)
12317                         return 150;
12318                 else if (max_xri <= 2048)
12319                         return 200;
12320                 else
12321                         return 250;
12322         } else
12323                 return 0;
12324 }
12325
12326 /**
12327  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12328  * @phba: pointer to lpfc hba data structure.
12329  *
12330  * returns the number of ELS/CT + NVMET IOCBs to reserve
12331  **/
12332 int
12333 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12334 {
12335         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12336
12337         if (phba->nvmet_support)
12338                 max_xri += LPFC_NVMET_BUF_POST;
12339         return max_xri;
12340 }
12341
12342
12343 static void
12344 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12345         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12346         const struct firmware *fw)
12347 {
12348         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
12349             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12350              magic_number != MAGIC_NUMER_G6) ||
12351             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12352              magic_number != MAGIC_NUMER_G7))
12353                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12354                         "3030 This firmware version is not supported on "
12355                         "this HBA model. Device:%x Magic:%x Type:%x "
12356                         "ID:%x Size %d %zd\n",
12357                         phba->pcidev->device, magic_number, ftype, fid,
12358                         fsize, fw->size);
12359         else
12360                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12361                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
12362                         "ID:%x Size %d %zd\n",
12363                         phba->pcidev->device, magic_number, ftype, fid,
12364                         fsize, fw->size);
12365 }
12366
12367
12368 /**
12369  * lpfc_write_firmware - attempt to write a firmware image to the port
12370  * @fw: pointer to firmware image returned from request_firmware.
12371  * @phba: pointer to lpfc hba data structure.
12372  *
12373  **/
12374 static void
12375 lpfc_write_firmware(const struct firmware *fw, void *context)
12376 {
12377         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12378         char fwrev[FW_REV_STR_SIZE];
12379         struct lpfc_grp_hdr *image;
12380         struct list_head dma_buffer_list;
12381         int i, rc = 0;
12382         struct lpfc_dmabuf *dmabuf, *next;
12383         uint32_t offset = 0, temp_offset = 0;
12384         uint32_t magic_number, ftype, fid, fsize;
12385
12386         /* It can be null in no-wait mode, sanity check */
12387         if (!fw) {
12388                 rc = -ENXIO;
12389                 goto out;
12390         }
12391         image = (struct lpfc_grp_hdr *)fw->data;
12392
12393         magic_number = be32_to_cpu(image->magic_number);
12394         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12395         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12396         fsize = be32_to_cpu(image->size);
12397
12398         INIT_LIST_HEAD(&dma_buffer_list);
12399         lpfc_decode_firmware_rev(phba, fwrev, 1);
12400         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12402                                 "3023 Updating Firmware, Current Version:%s "
12403                                 "New Version:%s\n",
12404                                 fwrev, image->revision);
12405                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12406                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12407                                          GFP_KERNEL);
12408                         if (!dmabuf) {
12409                                 rc = -ENOMEM;
12410                                 goto release_out;
12411                         }
12412                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12413                                                           SLI4_PAGE_SIZE,
12414                                                           &dmabuf->phys,
12415                                                           GFP_KERNEL);
12416                         if (!dmabuf->virt) {
12417                                 kfree(dmabuf);
12418                                 rc = -ENOMEM;
12419                                 goto release_out;
12420                         }
12421                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12422                 }
12423                 while (offset < fw->size) {
12424                         temp_offset = offset;
12425                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12426                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12427                                         memcpy(dmabuf->virt,
12428                                                fw->data + temp_offset,
12429                                                fw->size - temp_offset);
12430                                         temp_offset = fw->size;
12431                                         break;
12432                                 }
12433                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12434                                        SLI4_PAGE_SIZE);
12435                                 temp_offset += SLI4_PAGE_SIZE;
12436                         }
12437                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12438                                     (fw->size - offset), &offset);
12439                         if (rc) {
12440                                 lpfc_log_write_firmware_error(phba, offset,
12441                                         magic_number, ftype, fid, fsize, fw);
12442                                 goto release_out;
12443                         }
12444                 }
12445                 rc = offset;
12446         } else
12447                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12448                                 "3029 Skipped Firmware update, Current "
12449                                 "Version:%s New Version:%s\n",
12450                                 fwrev, image->revision);
12451
12452 release_out:
12453         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12454                 list_del(&dmabuf->list);
12455                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12456                                   dmabuf->virt, dmabuf->phys);
12457                 kfree(dmabuf);
12458         }
12459         release_firmware(fw);
12460 out:
12461         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12462                         "3024 Firmware update done: %d.\n", rc);
12463         return;
12464 }
12465
12466 /**
12467  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12468  * @phba: pointer to lpfc hba data structure.
12469  *
12470  * This routine is called to perform Linux generic firmware upgrade on device
12471  * that supports such feature.
12472  **/
12473 int
12474 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12475 {
12476         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12477         int ret;
12478         const struct firmware *fw;
12479
12480         /* Only supported on SLI4 interface type 2 for now */
12481         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12482             LPFC_SLI_INTF_IF_TYPE_2)
12483                 return -EPERM;
12484
12485         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12486
12487         if (fw_upgrade == INT_FW_UPGRADE) {
12488                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12489                                         file_name, &phba->pcidev->dev,
12490                                         GFP_KERNEL, (void *)phba,
12491                                         lpfc_write_firmware);
12492         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12493                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12494                 if (!ret)
12495                         lpfc_write_firmware(fw, (void *)phba);
12496         } else {
12497                 ret = -EINVAL;
12498         }
12499
12500         return ret;
12501 }
12502
12503 /**
12504  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12505  * @pdev: pointer to PCI device
12506  * @pid: pointer to PCI device identifier
12507  *
12508  * This routine is called from the kernel's PCI subsystem to device with
12509  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12510  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12511  * information of the device and driver to see if the driver state that it
12512  * can support this kind of device. If the match is successful, the driver
12513  * core invokes this routine. If this routine determines it can claim the HBA,
12514  * it does all the initialization that it needs to do to handle the HBA
12515  * properly.
12516  *
12517  * Return code
12518  *      0 - driver can claim the device
12519  *      negative value - driver can not claim the device
12520  **/
12521 static int
12522 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
12523 {
12524         struct lpfc_hba   *phba;
12525         struct lpfc_vport *vport = NULL;
12526         struct Scsi_Host  *shost = NULL;
12527         int error;
12528         uint32_t cfg_mode, intr_mode;
12529
12530         /* Allocate memory for HBA structure */
12531         phba = lpfc_hba_alloc(pdev);
12532         if (!phba)
12533                 return -ENOMEM;
12534
12535         /* Perform generic PCI device enabling operation */
12536         error = lpfc_enable_pci_dev(phba);
12537         if (error)
12538                 goto out_free_phba;
12539
12540         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
12541         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
12542         if (error)
12543                 goto out_disable_pci_dev;
12544
12545         /* Set up SLI-4 specific device PCI memory space */
12546         error = lpfc_sli4_pci_mem_setup(phba);
12547         if (error) {
12548                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12549                                 "1410 Failed to set up pci memory space.\n");
12550                 goto out_disable_pci_dev;
12551         }
12552
12553         /* Set up SLI-4 Specific device driver resources */
12554         error = lpfc_sli4_driver_resource_setup(phba);
12555         if (error) {
12556                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12557                                 "1412 Failed to set up driver resource.\n");
12558                 goto out_unset_pci_mem_s4;
12559         }
12560
12561         INIT_LIST_HEAD(&phba->active_rrq_list);
12562         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
12563
12564         /* Set up common device driver resources */
12565         error = lpfc_setup_driver_resource_phase2(phba);
12566         if (error) {
12567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12568                                 "1414 Failed to set up driver resource.\n");
12569                 goto out_unset_driver_resource_s4;
12570         }
12571
12572         /* Get the default values for Model Name and Description */
12573         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12574
12575         /* Now, trying to enable interrupt and bring up the device */
12576         cfg_mode = phba->cfg_use_msi;
12577
12578         /* Put device to a known state before enabling interrupt */
12579         phba->pport = NULL;
12580         lpfc_stop_port(phba);
12581
12582         /* Configure and enable interrupt */
12583         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
12584         if (intr_mode == LPFC_INTR_ERROR) {
12585                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12586                                 "0426 Failed to enable interrupt.\n");
12587                 error = -ENODEV;
12588                 goto out_unset_driver_resource;
12589         }
12590         /* Default to single EQ for non-MSI-X */
12591         if (phba->intr_type != MSIX) {
12592                 phba->cfg_irq_chann = 1;
12593                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12594                         if (phba->nvmet_support)
12595                                 phba->cfg_nvmet_mrq = 1;
12596                 }
12597         }
12598         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
12599
12600         /* Create SCSI host to the physical port */
12601         error = lpfc_create_shost(phba);
12602         if (error) {
12603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12604                                 "1415 Failed to create scsi host.\n");
12605                 goto out_disable_intr;
12606         }
12607         vport = phba->pport;
12608         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12609
12610         /* Configure sysfs attributes */
12611         error = lpfc_alloc_sysfs_attr(vport);
12612         if (error) {
12613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12614                                 "1416 Failed to allocate sysfs attr\n");
12615                 goto out_destroy_shost;
12616         }
12617
12618         /* Set up SLI-4 HBA */
12619         if (lpfc_sli4_hba_setup(phba)) {
12620                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12621                                 "1421 Failed to set up hba\n");
12622                 error = -ENODEV;
12623                 goto out_free_sysfs_attr;
12624         }
12625
12626         /* Log the current active interrupt mode */
12627         phba->intr_mode = intr_mode;
12628         lpfc_log_intr_mode(phba, intr_mode);
12629
12630         /* Perform post initialization setup */
12631         lpfc_post_init_setup(phba);
12632
12633         /* NVME support in FW earlier in the driver load corrects the
12634          * FC4 type making a check for nvme_support unnecessary.
12635          */
12636         if (phba->nvmet_support == 0) {
12637                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12638                         /* Create NVME binding with nvme_fc_transport. This
12639                          * ensures the vport is initialized.  If the localport
12640                          * create fails, it should not unload the driver to
12641                          * support field issues.
12642                          */
12643                         error = lpfc_nvme_create_localport(vport);
12644                         if (error) {
12645                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12646                                                 "6004 NVME registration "
12647                                                 "failed, error x%x\n",
12648                                                 error);
12649                         }
12650                 }
12651         }
12652
12653         /* check for firmware upgrade or downgrade */
12654         if (phba->cfg_request_firmware_upgrade)
12655                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
12656
12657         /* Check if there are static vports to be created. */
12658         lpfc_create_static_vport(phba);
12659
12660         /* Enable RAS FW log support */
12661         lpfc_sli4_ras_setup(phba);
12662
12663         return 0;
12664
12665 out_free_sysfs_attr:
12666         lpfc_free_sysfs_attr(vport);
12667 out_destroy_shost:
12668         lpfc_destroy_shost(phba);
12669 out_disable_intr:
12670         lpfc_sli4_disable_intr(phba);
12671 out_unset_driver_resource:
12672         lpfc_unset_driver_resource_phase2(phba);
12673 out_unset_driver_resource_s4:
12674         lpfc_sli4_driver_resource_unset(phba);
12675 out_unset_pci_mem_s4:
12676         lpfc_sli4_pci_mem_unset(phba);
12677 out_disable_pci_dev:
12678         lpfc_disable_pci_dev(phba);
12679         if (shost)
12680                 scsi_host_put(shost);
12681 out_free_phba:
12682         lpfc_hba_free(phba);
12683         return error;
12684 }
12685
12686 /**
12687  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
12688  * @pdev: pointer to PCI device
12689  *
12690  * This routine is called from the kernel's PCI subsystem to device with
12691  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12692  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12693  * device to be removed from the PCI subsystem properly.
12694  **/
12695 static void
12696 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
12697 {
12698         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12699         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12700         struct lpfc_vport **vports;
12701         struct lpfc_hba *phba = vport->phba;
12702         int i;
12703
12704         /* Mark the device unloading flag */
12705         spin_lock_irq(&phba->hbalock);
12706         vport->load_flag |= FC_UNLOADING;
12707         spin_unlock_irq(&phba->hbalock);
12708
12709         /* Free the HBA sysfs attributes */
12710         lpfc_free_sysfs_attr(vport);
12711
12712         /* Release all the vports against this physical port */
12713         vports = lpfc_create_vport_work_array(phba);
12714         if (vports != NULL)
12715                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12716                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12717                                 continue;
12718                         fc_vport_terminate(vports[i]->fc_vport);
12719                 }
12720         lpfc_destroy_vport_work_array(phba, vports);
12721
12722         /* Remove FC host and then SCSI host with the physical port */
12723         fc_remove_host(shost);
12724         scsi_remove_host(shost);
12725
12726         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
12727          * localports are destroyed after to cleanup all transport memory.
12728          */
12729         lpfc_cleanup(vport);
12730         lpfc_nvmet_destroy_targetport(phba);
12731         lpfc_nvme_destroy_localport(vport);
12732
12733         /* De-allocate multi-XRI pools */
12734         if (phba->cfg_xri_rebalancing)
12735                 lpfc_destroy_multixri_pools(phba);
12736
12737         /*
12738          * Bring down the SLI Layer. This step disables all interrupts,
12739          * clears the rings, discards all mailbox commands, and resets
12740          * the HBA FCoE function.
12741          */
12742         lpfc_debugfs_terminate(vport);
12743
12744         lpfc_stop_hba_timers(phba);
12745         spin_lock_irq(&phba->port_list_lock);
12746         list_del_init(&vport->listentry);
12747         spin_unlock_irq(&phba->port_list_lock);
12748
12749         /* Perform scsi free before driver resource_unset since scsi
12750          * buffers are released to their corresponding pools here.
12751          */
12752         lpfc_io_free(phba);
12753         lpfc_free_iocb_list(phba);
12754         lpfc_sli4_hba_unset(phba);
12755
12756         lpfc_unset_driver_resource_phase2(phba);
12757         lpfc_sli4_driver_resource_unset(phba);
12758
12759         /* Unmap adapter Control and Doorbell registers */
12760         lpfc_sli4_pci_mem_unset(phba);
12761
12762         /* Release PCI resources and disable device's PCI function */
12763         scsi_host_put(shost);
12764         lpfc_disable_pci_dev(phba);
12765
12766         /* Finally, free the driver's device data structure */
12767         lpfc_hba_free(phba);
12768
12769         return;
12770 }
12771
12772 /**
12773  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12774  * @pdev: pointer to PCI device
12775  * @msg: power management message
12776  *
12777  * This routine is called from the kernel's PCI subsystem to support system
12778  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12779  * this method, it quiesces the device by stopping the driver's worker
12780  * thread for the device, turning off device's interrupt and DMA, and bring
12781  * the device offline. Note that as the driver implements the minimum PM
12782  * requirements to a power-aware driver's PM support for suspend/resume -- all
12783  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12784  * method call will be treated as SUSPEND and the driver will fully
12785  * reinitialize its device during resume() method call, the driver will set
12786  * device to PCI_D3hot state in PCI config space instead of setting it
12787  * according to the @msg provided by the PM.
12788  *
12789  * Return code
12790  *      0 - driver suspended the device
12791  *      Error otherwise
12792  **/
12793 static int
12794 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12795 {
12796         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12797         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12798
12799         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12800                         "2843 PCI device Power Management suspend.\n");
12801
12802         /* Bring down the device */
12803         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12804         lpfc_offline(phba);
12805         kthread_stop(phba->worker_thread);
12806
12807         /* Disable interrupt from device */
12808         lpfc_sli4_disable_intr(phba);
12809         lpfc_sli4_queue_destroy(phba);
12810
12811         /* Save device state to PCI config space */
12812         pci_save_state(pdev);
12813         pci_set_power_state(pdev, PCI_D3hot);
12814
12815         return 0;
12816 }
12817
12818 /**
12819  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12820  * @pdev: pointer to PCI device
12821  *
12822  * This routine is called from the kernel's PCI subsystem to support system
12823  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12824  * this method, it restores the device's PCI config space state and fully
12825  * reinitializes the device and brings it online. Note that as the driver
12826  * implements the minimum PM requirements to a power-aware driver's PM for
12827  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12828  * to the suspend() method call will be treated as SUSPEND and the driver
12829  * will fully reinitialize its device during resume() method call, the device
12830  * will be set to PCI_D0 directly in PCI config space before restoring the
12831  * state.
12832  *
12833  * Return code
12834  *      0 - driver suspended the device
12835  *      Error otherwise
12836  **/
12837 static int
12838 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12839 {
12840         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12841         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12842         uint32_t intr_mode;
12843         int error;
12844
12845         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12846                         "0292 PCI device Power Management resume.\n");
12847
12848         /* Restore device state from PCI config space */
12849         pci_set_power_state(pdev, PCI_D0);
12850         pci_restore_state(pdev);
12851
12852         /*
12853          * As the new kernel behavior of pci_restore_state() API call clears
12854          * device saved_state flag, need to save the restored state again.
12855          */
12856         pci_save_state(pdev);
12857
12858         if (pdev->is_busmaster)
12859                 pci_set_master(pdev);
12860
12861          /* Startup the kernel thread for this host adapter. */
12862         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12863                                         "lpfc_worker_%d", phba->brd_no);
12864         if (IS_ERR(phba->worker_thread)) {
12865                 error = PTR_ERR(phba->worker_thread);
12866                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12867                                 "0293 PM resume failed to start worker "
12868                                 "thread: error=x%x.\n", error);
12869                 return error;
12870         }
12871
12872         /* Configure and enable interrupt */
12873         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12874         if (intr_mode == LPFC_INTR_ERROR) {
12875                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12876                                 "0294 PM resume Failed to enable interrupt\n");
12877                 return -EIO;
12878         } else
12879                 phba->intr_mode = intr_mode;
12880
12881         /* Restart HBA and bring it online */
12882         lpfc_sli_brdrestart(phba);
12883         lpfc_online(phba);
12884
12885         /* Log the current active interrupt mode */
12886         lpfc_log_intr_mode(phba, phba->intr_mode);
12887
12888         return 0;
12889 }
12890
12891 /**
12892  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12893  * @phba: pointer to lpfc hba data structure.
12894  *
12895  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12896  * aborts all the outstanding SCSI I/Os to the pci device.
12897  **/
12898 static void
12899 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12900 {
12901         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12902                         "2828 PCI channel I/O abort preparing for recovery\n");
12903         /*
12904          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12905          * and let the SCSI mid-layer to retry them to recover.
12906          */
12907         lpfc_sli_abort_fcp_rings(phba);
12908 }
12909
12910 /**
12911  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12912  * @phba: pointer to lpfc hba data structure.
12913  *
12914  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12915  * disables the device interrupt and pci device, and aborts the internal FCP
12916  * pending I/Os.
12917  **/
12918 static void
12919 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12920 {
12921         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12922                         "2826 PCI channel disable preparing for reset\n");
12923
12924         /* Block any management I/Os to the device */
12925         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12926
12927         /* Block all SCSI devices' I/Os on the host */
12928         lpfc_scsi_dev_block(phba);
12929
12930         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12931         lpfc_sli_flush_fcp_rings(phba);
12932
12933         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12934         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12935                 lpfc_sli_flush_nvme_rings(phba);
12936
12937         /* stop all timers */
12938         lpfc_stop_hba_timers(phba);
12939
12940         /* Disable interrupt and pci device */
12941         lpfc_sli4_disable_intr(phba);
12942         lpfc_sli4_queue_destroy(phba);
12943         pci_disable_device(phba->pcidev);
12944 }
12945
12946 /**
12947  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12948  * @phba: pointer to lpfc hba data structure.
12949  *
12950  * This routine is called to prepare the SLI4 device for PCI slot permanently
12951  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12952  * pending I/Os.
12953  **/
12954 static void
12955 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12956 {
12957         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12958                         "2827 PCI channel permanent disable for failure\n");
12959
12960         /* Block all SCSI devices' I/Os on the host */
12961         lpfc_scsi_dev_block(phba);
12962
12963         /* stop all timers */
12964         lpfc_stop_hba_timers(phba);
12965
12966         /* Clean up all driver's outstanding SCSI I/Os */
12967         lpfc_sli_flush_fcp_rings(phba);
12968
12969         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12970         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12971                 lpfc_sli_flush_nvme_rings(phba);
12972 }
12973
12974 /**
12975  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12976  * @pdev: pointer to PCI device.
12977  * @state: the current PCI connection state.
12978  *
12979  * This routine is called from the PCI subsystem for error handling to device
12980  * with SLI-4 interface spec. This function is called by the PCI subsystem
12981  * after a PCI bus error affecting this device has been detected. When this
12982  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12983  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12984  * for the PCI subsystem to perform proper recovery as desired.
12985  *
12986  * Return codes
12987  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12988  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12989  **/
12990 static pci_ers_result_t
12991 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12992 {
12993         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12994         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12995
12996         switch (state) {
12997         case pci_channel_io_normal:
12998                 /* Non-fatal error, prepare for recovery */
12999                 lpfc_sli4_prep_dev_for_recover(phba);
13000                 return PCI_ERS_RESULT_CAN_RECOVER;
13001         case pci_channel_io_frozen:
13002                 /* Fatal error, prepare for slot reset */
13003                 lpfc_sli4_prep_dev_for_reset(phba);
13004                 return PCI_ERS_RESULT_NEED_RESET;
13005         case pci_channel_io_perm_failure:
13006                 /* Permanent failure, prepare for device down */
13007                 lpfc_sli4_prep_dev_for_perm_failure(phba);
13008                 return PCI_ERS_RESULT_DISCONNECT;
13009         default:
13010                 /* Unknown state, prepare and request slot reset */
13011                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13012                                 "2825 Unknown PCI error state: x%x\n", state);
13013                 lpfc_sli4_prep_dev_for_reset(phba);
13014                 return PCI_ERS_RESULT_NEED_RESET;
13015         }
13016 }
13017
13018 /**
13019  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13020  * @pdev: pointer to PCI device.
13021  *
13022  * This routine is called from the PCI subsystem for error handling to device
13023  * with SLI-4 interface spec. It is called after PCI bus has been reset to
13024  * restart the PCI card from scratch, as if from a cold-boot. During the
13025  * PCI subsystem error recovery, after the driver returns
13026  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13027  * recovery and then call this routine before calling the .resume method to
13028  * recover the device. This function will initialize the HBA device, enable
13029  * the interrupt, but it will just put the HBA to offline state without
13030  * passing any I/O traffic.
13031  *
13032  * Return codes
13033  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13034  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13035  */
13036 static pci_ers_result_t
13037 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13038 {
13039         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13040         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13041         struct lpfc_sli *psli = &phba->sli;
13042         uint32_t intr_mode;
13043
13044         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13045         if (pci_enable_device_mem(pdev)) {
13046                 printk(KERN_ERR "lpfc: Cannot re-enable "
13047                         "PCI device after reset.\n");
13048                 return PCI_ERS_RESULT_DISCONNECT;
13049         }
13050
13051         pci_restore_state(pdev);
13052
13053         /*
13054          * As the new kernel behavior of pci_restore_state() API call clears
13055          * device saved_state flag, need to save the restored state again.
13056          */
13057         pci_save_state(pdev);
13058
13059         if (pdev->is_busmaster)
13060                 pci_set_master(pdev);
13061
13062         spin_lock_irq(&phba->hbalock);
13063         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13064         spin_unlock_irq(&phba->hbalock);
13065
13066         /* Configure and enable interrupt */
13067         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13068         if (intr_mode == LPFC_INTR_ERROR) {
13069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13070                                 "2824 Cannot re-enable interrupt after "
13071                                 "slot reset.\n");
13072                 return PCI_ERS_RESULT_DISCONNECT;
13073         } else
13074                 phba->intr_mode = intr_mode;
13075
13076         /* Log the current active interrupt mode */
13077         lpfc_log_intr_mode(phba, phba->intr_mode);
13078
13079         return PCI_ERS_RESULT_RECOVERED;
13080 }
13081
13082 /**
13083  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13084  * @pdev: pointer to PCI device
13085  *
13086  * This routine is called from the PCI subsystem for error handling to device
13087  * with SLI-4 interface spec. It is called when kernel error recovery tells
13088  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13089  * error recovery. After this call, traffic can start to flow from this device
13090  * again.
13091  **/
13092 static void
13093 lpfc_io_resume_s4(struct pci_dev *pdev)
13094 {
13095         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13096         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13097
13098         /*
13099          * In case of slot reset, as function reset is performed through
13100          * mailbox command which needs DMA to be enabled, this operation
13101          * has to be moved to the io resume phase. Taking device offline
13102          * will perform the necessary cleanup.
13103          */
13104         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13105                 /* Perform device reset */
13106                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13107                 lpfc_offline(phba);
13108                 lpfc_sli_brdrestart(phba);
13109                 /* Bring the device back online */
13110                 lpfc_online(phba);
13111         }
13112 }
13113
13114 /**
13115  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13116  * @pdev: pointer to PCI device
13117  * @pid: pointer to PCI device identifier
13118  *
13119  * This routine is to be registered to the kernel's PCI subsystem. When an
13120  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13121  * at PCI device-specific information of the device and driver to see if the
13122  * driver state that it can support this kind of device. If the match is
13123  * successful, the driver core invokes this routine. This routine dispatches
13124  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13125  * do all the initialization that it needs to do to handle the HBA device
13126  * properly.
13127  *
13128  * Return code
13129  *      0 - driver can claim the device
13130  *      negative value - driver can not claim the device
13131  **/
13132 static int
13133 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13134 {
13135         int rc;
13136         struct lpfc_sli_intf intf;
13137
13138         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13139                 return -ENODEV;
13140
13141         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13142             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13143                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13144         else
13145                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13146
13147         return rc;
13148 }
13149
13150 /**
13151  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13152  * @pdev: pointer to PCI device
13153  *
13154  * This routine is to be registered to the kernel's PCI subsystem. When an
13155  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13156  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13157  * remove routine, which will perform all the necessary cleanup for the
13158  * device to be removed from the PCI subsystem properly.
13159  **/
13160 static void
13161 lpfc_pci_remove_one(struct pci_dev *pdev)
13162 {
13163         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13164         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13165
13166         switch (phba->pci_dev_grp) {
13167         case LPFC_PCI_DEV_LP:
13168                 lpfc_pci_remove_one_s3(pdev);
13169                 break;
13170         case LPFC_PCI_DEV_OC:
13171                 lpfc_pci_remove_one_s4(pdev);
13172                 break;
13173         default:
13174                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13175                                 "1424 Invalid PCI device group: 0x%x\n",
13176                                 phba->pci_dev_grp);
13177                 break;
13178         }
13179         return;
13180 }
13181
13182 /**
13183  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13184  * @pdev: pointer to PCI device
13185  * @msg: power management message
13186  *
13187  * This routine is to be registered to the kernel's PCI subsystem to support
13188  * system Power Management (PM). When PM invokes this method, it dispatches
13189  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13190  * suspend the device.
13191  *
13192  * Return code
13193  *      0 - driver suspended the device
13194  *      Error otherwise
13195  **/
13196 static int
13197 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13198 {
13199         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13200         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13201         int rc = -ENODEV;
13202
13203         switch (phba->pci_dev_grp) {
13204         case LPFC_PCI_DEV_LP:
13205                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13206                 break;
13207         case LPFC_PCI_DEV_OC:
13208                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13209                 break;
13210         default:
13211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13212                                 "1425 Invalid PCI device group: 0x%x\n",
13213                                 phba->pci_dev_grp);
13214                 break;
13215         }
13216         return rc;
13217 }
13218
13219 /**
13220  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13221  * @pdev: pointer to PCI device
13222  *
13223  * This routine is to be registered to the kernel's PCI subsystem to support
13224  * system Power Management (PM). When PM invokes this method, it dispatches
13225  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13226  * resume the device.
13227  *
13228  * Return code
13229  *      0 - driver suspended the device
13230  *      Error otherwise
13231  **/
13232 static int
13233 lpfc_pci_resume_one(struct pci_dev *pdev)
13234 {
13235         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13236         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13237         int rc = -ENODEV;
13238
13239         switch (phba->pci_dev_grp) {
13240         case LPFC_PCI_DEV_LP:
13241                 rc = lpfc_pci_resume_one_s3(pdev);
13242                 break;
13243         case LPFC_PCI_DEV_OC:
13244                 rc = lpfc_pci_resume_one_s4(pdev);
13245                 break;
13246         default:
13247                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13248                                 "1426 Invalid PCI device group: 0x%x\n",
13249                                 phba->pci_dev_grp);
13250                 break;
13251         }
13252         return rc;
13253 }
13254
13255 /**
13256  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13257  * @pdev: pointer to PCI device.
13258  * @state: the current PCI connection state.
13259  *
13260  * This routine is registered to the PCI subsystem for error handling. This
13261  * function is called by the PCI subsystem after a PCI bus error affecting
13262  * this device has been detected. When this routine is invoked, it dispatches
13263  * the action to the proper SLI-3 or SLI-4 device error detected handling
13264  * routine, which will perform the proper error detected operation.
13265  *
13266  * Return codes
13267  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13268  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13269  **/
13270 static pci_ers_result_t
13271 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13272 {
13273         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13274         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13275         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13276
13277         switch (phba->pci_dev_grp) {
13278         case LPFC_PCI_DEV_LP:
13279                 rc = lpfc_io_error_detected_s3(pdev, state);
13280                 break;
13281         case LPFC_PCI_DEV_OC:
13282                 rc = lpfc_io_error_detected_s4(pdev, state);
13283                 break;
13284         default:
13285                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13286                                 "1427 Invalid PCI device group: 0x%x\n",
13287                                 phba->pci_dev_grp);
13288                 break;
13289         }
13290         return rc;
13291 }
13292
13293 /**
13294  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13295  * @pdev: pointer to PCI device.
13296  *
13297  * This routine is registered to the PCI subsystem for error handling. This
13298  * function is called after PCI bus has been reset to restart the PCI card
13299  * from scratch, as if from a cold-boot. When this routine is invoked, it
13300  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13301  * routine, which will perform the proper device reset.
13302  *
13303  * Return codes
13304  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13305  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13306  **/
13307 static pci_ers_result_t
13308 lpfc_io_slot_reset(struct pci_dev *pdev)
13309 {
13310         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13311         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13312         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13313
13314         switch (phba->pci_dev_grp) {
13315         case LPFC_PCI_DEV_LP:
13316                 rc = lpfc_io_slot_reset_s3(pdev);
13317                 break;
13318         case LPFC_PCI_DEV_OC:
13319                 rc = lpfc_io_slot_reset_s4(pdev);
13320                 break;
13321         default:
13322                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13323                                 "1428 Invalid PCI device group: 0x%x\n",
13324                                 phba->pci_dev_grp);
13325                 break;
13326         }
13327         return rc;
13328 }
13329
13330 /**
13331  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13332  * @pdev: pointer to PCI device
13333  *
13334  * This routine is registered to the PCI subsystem for error handling. It
13335  * is called when kernel error recovery tells the lpfc driver that it is
13336  * OK to resume normal PCI operation after PCI bus error recovery. When
13337  * this routine is invoked, it dispatches the action to the proper SLI-3
13338  * or SLI-4 device io_resume routine, which will resume the device operation.
13339  **/
13340 static void
13341 lpfc_io_resume(struct pci_dev *pdev)
13342 {
13343         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13344         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13345
13346         switch (phba->pci_dev_grp) {
13347         case LPFC_PCI_DEV_LP:
13348                 lpfc_io_resume_s3(pdev);
13349                 break;
13350         case LPFC_PCI_DEV_OC:
13351                 lpfc_io_resume_s4(pdev);
13352                 break;
13353         default:
13354                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13355                                 "1429 Invalid PCI device group: 0x%x\n",
13356                                 phba->pci_dev_grp);
13357                 break;
13358         }
13359         return;
13360 }
13361
13362 /**
13363  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13364  * @phba: pointer to lpfc hba data structure.
13365  *
13366  * This routine checks to see if OAS is supported for this adapter. If
13367  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13368  * the enable oas flag is cleared and the pool created for OAS device data
13369  * is destroyed.
13370  *
13371  **/
13372 static void
13373 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13374 {
13375
13376         if (!phba->cfg_EnableXLane)
13377                 return;
13378
13379         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13380                 phba->cfg_fof = 1;
13381         } else {
13382                 phba->cfg_fof = 0;
13383                 if (phba->device_data_mem_pool)
13384                         mempool_destroy(phba->device_data_mem_pool);
13385                 phba->device_data_mem_pool = NULL;
13386         }
13387
13388         return;
13389 }
13390
13391 /**
13392  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13393  * @phba: pointer to lpfc hba data structure.
13394  *
13395  * This routine checks to see if RAS is supported by the adapter. Check the
13396  * function through which RAS support enablement is to be done.
13397  **/
13398 void
13399 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13400 {
13401         switch (phba->pcidev->device) {
13402         case PCI_DEVICE_ID_LANCER_G6_FC:
13403         case PCI_DEVICE_ID_LANCER_G7_FC:
13404                 phba->ras_fwlog.ras_hwsupport = true;
13405                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13406                     phba->cfg_ras_fwlog_buffsize)
13407                         phba->ras_fwlog.ras_enabled = true;
13408                 else
13409                         phba->ras_fwlog.ras_enabled = false;
13410                 break;
13411         default:
13412                 phba->ras_fwlog.ras_hwsupport = false;
13413         }
13414 }
13415
13416
13417 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13418
13419 static const struct pci_error_handlers lpfc_err_handler = {
13420         .error_detected = lpfc_io_error_detected,
13421         .slot_reset = lpfc_io_slot_reset,
13422         .resume = lpfc_io_resume,
13423 };
13424
13425 static struct pci_driver lpfc_driver = {
13426         .name           = LPFC_DRIVER_NAME,
13427         .id_table       = lpfc_id_table,
13428         .probe          = lpfc_pci_probe_one,
13429         .remove         = lpfc_pci_remove_one,
13430         .shutdown       = lpfc_pci_remove_one,
13431         .suspend        = lpfc_pci_suspend_one,
13432         .resume         = lpfc_pci_resume_one,
13433         .err_handler    = &lpfc_err_handler,
13434 };
13435
13436 static const struct file_operations lpfc_mgmt_fop = {
13437         .owner = THIS_MODULE,
13438 };
13439
13440 static struct miscdevice lpfc_mgmt_dev = {
13441         .minor = MISC_DYNAMIC_MINOR,
13442         .name = "lpfcmgmt",
13443         .fops = &lpfc_mgmt_fop,
13444 };
13445
13446 /**
13447  * lpfc_init - lpfc module initialization routine
13448  *
13449  * This routine is to be invoked when the lpfc module is loaded into the
13450  * kernel. The special kernel macro module_init() is used to indicate the
13451  * role of this routine to the kernel as lpfc module entry point.
13452  *
13453  * Return codes
13454  *   0 - successful
13455  *   -ENOMEM - FC attach transport failed
13456  *   all others - failed
13457  */
13458 static int __init
13459 lpfc_init(void)
13460 {
13461         int error = 0;
13462
13463         printk(LPFC_MODULE_DESC "\n");
13464         printk(LPFC_COPYRIGHT "\n");
13465
13466         error = misc_register(&lpfc_mgmt_dev);
13467         if (error)
13468                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13469                         "misc_register returned with status %d", error);
13470
13471         lpfc_transport_functions.vport_create = lpfc_vport_create;
13472         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13473         lpfc_transport_template =
13474                                 fc_attach_transport(&lpfc_transport_functions);
13475         if (lpfc_transport_template == NULL)
13476                 return -ENOMEM;
13477         lpfc_vport_transport_template =
13478                 fc_attach_transport(&lpfc_vport_transport_functions);
13479         if (lpfc_vport_transport_template == NULL) {
13480                 fc_release_transport(lpfc_transport_template);
13481                 return -ENOMEM;
13482         }
13483         lpfc_nvme_cmd_template();
13484         lpfc_nvmet_cmd_template();
13485
13486         /* Initialize in case vector mapping is needed */
13487         lpfc_present_cpu = num_present_cpus();
13488
13489         error = pci_register_driver(&lpfc_driver);
13490         if (error) {
13491                 fc_release_transport(lpfc_transport_template);
13492                 fc_release_transport(lpfc_vport_transport_template);
13493         }
13494
13495         return error;
13496 }
13497
13498 /**
13499  * lpfc_exit - lpfc module removal routine
13500  *
13501  * This routine is invoked when the lpfc module is removed from the kernel.
13502  * The special kernel macro module_exit() is used to indicate the role of
13503  * this routine to the kernel as lpfc module exit point.
13504  */
13505 static void __exit
13506 lpfc_exit(void)
13507 {
13508         misc_deregister(&lpfc_mgmt_dev);
13509         pci_unregister_driver(&lpfc_driver);
13510         fc_release_transport(lpfc_transport_template);
13511         fc_release_transport(lpfc_vport_transport_template);
13512         if (_dump_buf_data) {
13513                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
13514                                 "_dump_buf_data at 0x%p\n",
13515                                 (1L << _dump_buf_data_order), _dump_buf_data);
13516                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
13517         }
13518
13519         if (_dump_buf_dif) {
13520                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
13521                                 "_dump_buf_dif at 0x%p\n",
13522                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
13523                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
13524         }
13525         idr_destroy(&lpfc_hba_index);
13526 }
13527
13528 module_init(lpfc_init);
13529 module_exit(lpfc_exit);
13530 MODULE_LICENSE("GPL");
13531 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
13532 MODULE_AUTHOR("Broadcom");
13533 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);