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 Broadcom. All Rights Reserved. The term      *
   5  * “Broadcom” refers to Broadcom Limited 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
  41 #include <scsi/scsi.h>
  42 #include <scsi/scsi_device.h>
  43 #include <scsi/scsi_host.h>
  44 #include <scsi/scsi_transport_fc.h>
  45 #include <scsi/scsi_tcq.h>
  46 #include <scsi/fc/fc_fs.h>
  47
  48 #include <linux/nvme-fc-driver.h>
  49
  50 #include "lpfc_hw4.h"
  51 #include "lpfc_hw.h"
  52 #include "lpfc_sli.h"
  53 #include "lpfc_sli4.h"
  54 #include "lpfc_nl.h"
  55 #include "lpfc_disc.h"
  56 #include "lpfc.h"
  57 #include "lpfc_scsi.h"
  58 #include "lpfc_nvme.h"
  59 #include "lpfc_nvmet.h"
  60 #include "lpfc_logmsg.h"
  61 #include "lpfc_crtn.h"
  62 #include "lpfc_vport.h"
  63 #include "lpfc_version.h"
  64 #include "lpfc_ids.h"
  65
  66 char *_dump_buf_data;
  67 unsigned long _dump_buf_data_order;
  68 char *_dump_buf_dif;
  69 unsigned long _dump_buf_dif_order;
  70 spinlock_t _dump_buf_lock;
  71
  72 /* Used when mapping IRQ vectors in a driver centric manner */
  73 uint16_t *lpfc_used_cpu;
  74 uint32_t lpfc_present_cpu;
  75
  76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  80 static int lpfc_setup_endian_order(struct lpfc_hba *);
  81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  84 static void lpfc_init_sgl_list(struct lpfc_hba *);
  85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  86 static void lpfc_free_active_sgl(struct lpfc_hba *);
  87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  95
  96 static struct scsi_transport_template *lpfc_transport_template = NULL;
  97 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  98 static DEFINE_IDR(lpfc_hba_index);
  99 #define LPFC_NVMET_BUF_POST 254
 100
 101 /**
 102  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 103  * @phba: pointer to lpfc hba data structure.
 104  *
 105  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 106  * mailbox command. It retrieves the revision information from the HBA and
 107  * collects the Vital Product Data (VPD) about the HBA for preparing the
 108  * configuration of the HBA.
 109  *
 110  * Return codes:
 111  *   0 - success.
 112  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 113  *   Any other value - indicates an error.
 114  **/
 115 int
 116 lpfc_config_port_prep(struct lpfc_hba *phba)
 117 {
 118         lpfc_vpd_t *vp = &phba->vpd;
 119         int i = 0, rc;
 120         LPFC_MBOXQ_t *pmb;
 121         MAILBOX_t *mb;
 122         char *lpfc_vpd_data = NULL;
 123         uint16_t offset = 0;
 124         static char licensed[56] =
 125                     "key unlock for use with gnu public licensed code only\0";
 126         static int init_key = 1;
 127
 128         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 129         if (!pmb) {
 130                 phba->link_state = LPFC_HBA_ERROR;
 131                 return -ENOMEM;
 132         }
 133
 134         mb = &pmb->u.mb;
 135         phba->link_state = LPFC_INIT_MBX_CMDS;
 136
 137         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 138                 if (init_key) {
 139                         uint32_t *ptext = (uint32_t *) licensed;
 140
 141                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 142                                 *ptext = cpu_to_be32(*ptext);
 143                         init_key = 0;
 144                 }
 145
 146                 lpfc_read_nv(phba, pmb);
 147                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 148                         sizeof (mb->un.varRDnvp.rsvd3));
 149                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 150                          sizeof (licensed));
 151
 152                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153
 154                 if (rc != MBX_SUCCESS) {
 155                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 156                                         "0324 Config Port initialization "
 157                                         "error, mbxCmd x%x READ_NVPARM, "
 158                                         "mbxStatus x%x\n",
 159                                         mb->mbxCommand, mb->mbxStatus);
 160                         mempool_free(pmb, phba->mbox_mem_pool);
 161                         return -ERESTART;
 162                 }
 163                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 164                        sizeof(phba->wwnn));
 165                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 166                        sizeof(phba->wwpn));
 167         }
 168
 169         phba->sli3_options = 0x0;
 170
 171         /* Setup and issue mailbox READ REV command */
 172         lpfc_read_rev(phba, pmb);
 173         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 174         if (rc != MBX_SUCCESS) {
 175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 176                                 "0439 Adapter failed to init, mbxCmd x%x "
 177                                 "READ_REV, mbxStatus x%x\n",
 178                                 mb->mbxCommand, mb->mbxStatus);
 179                 mempool_free( pmb, phba->mbox_mem_pool);
 180                 return -ERESTART;
 181         }
 182
 183
 184         /*
 185          * The value of rr must be 1 since the driver set the cv field to 1.
 186          * This setting requires the FW to set all revision fields.
 187          */
 188         if (mb->un.varRdRev.rr == 0) {
 189                 vp->rev.rBit = 0;
 190                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 191                                 "0440 Adapter failed to init, READ_REV has "
 192                                 "missing revision information.\n");
 193                 mempool_free(pmb, phba->mbox_mem_pool);
 194                 return -ERESTART;
 195         }
 196
 197         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -EINVAL;
 200         }
 201
 202         /* Save information as VPD data */
 203         vp->rev.rBit = 1;
 204         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 205         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 206         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 207         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 208         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 209         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 210         vp->rev.smRev = mb->un.varRdRev.smRev;
 211         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 212         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 213         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 214         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 215         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 216         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 217         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 218         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 219
 220         /* If the sli feature level is less then 9, we must
 221          * tear down all RPIs and VPIs on link down if NPIV
 222          * is enabled.
 223          */
 224         if (vp->rev.feaLevelHigh < 9)
 225                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 226
 227         if (lpfc_is_LC_HBA(phba->pcidev->device))
 228                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 229                                                 sizeof (phba->RandomData));
 230
 231         /* Get adapter VPD information */
 232         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 233         if (!lpfc_vpd_data)
 234                 goto out_free_mbox;
 235         do {
 236                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 237                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 238
 239                 if (rc != MBX_SUCCESS) {
 240                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 241                                         "0441 VPD not present on adapter, "
 242                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 243                                         mb->mbxCommand, mb->mbxStatus);
 244                         mb->un.varDmp.word_cnt = 0;
 245                 }
 246                 /* dump mem may return a zero when finished or we got a
 247                  * mailbox error, either way we are done.
 248                  */
 249                 if (mb->un.varDmp.word_cnt == 0)
 250                         break;
 251                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 252                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 253                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 254                                       lpfc_vpd_data + offset,
 255                                       mb->un.varDmp.word_cnt);
 256                 offset += mb->un.varDmp.word_cnt;
 257         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 258         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 259
 260         kfree(lpfc_vpd_data);
 261 out_free_mbox:
 262         mempool_free(pmb, phba->mbox_mem_pool);
 263         return 0;
 264 }
 265
 266 /**
 267  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 268  * @phba: pointer to lpfc hba data structure.
 269  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 270  *
 271  * This is the completion handler for driver's configuring asynchronous event
 272  * mailbox command to the device. If the mailbox command returns successfully,
 273  * it will set internal async event support flag to 1; otherwise, it will
 274  * set internal async event support flag to 0.
 275  **/
 276 static void
 277 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 278 {
 279         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 280                 phba->temp_sensor_support = 1;
 281         else
 282                 phba->temp_sensor_support = 0;
 283         mempool_free(pmboxq, phba->mbox_mem_pool);
 284         return;
 285 }
 286
 287 /**
 288  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 289  * @phba: pointer to lpfc hba data structure.
 290  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 291  *
 292  * This is the completion handler for dump mailbox command for getting
 293  * wake up parameters. When this command complete, the response contain
 294  * Option rom version of the HBA. This function translate the version number
 295  * into a human readable string and store it in OptionROMVersion.
 296  **/
 297 static void
 298 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 299 {
 300         struct prog_id *prg;
 301         uint32_t prog_id_word;
 302         char dist = ' ';
 303         /* character array used for decoding dist type. */
 304         char dist_char[] = "nabx";
 305
 306         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 307                 mempool_free(pmboxq, phba->mbox_mem_pool);
 308                 return;
 309         }
 310
 311         prg = (struct prog_id *) &prog_id_word;
 312
 313         /* word 7 contain option rom version */
 314         prog_id_word = pmboxq->u.mb.un.varWords[7];
 315
 316         /* Decode the Option rom version word to a readable string */
 317         if (prg->dist < 4)
 318                 dist = dist_char[prg->dist];
 319
 320         if ((prg->dist == 3) && (prg->num == 0))
 321                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 322                         prg->ver, prg->rev, prg->lev);
 323         else
 324                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 325                         prg->ver, prg->rev, prg->lev,
 326                         dist, prg->num);
 327         mempool_free(pmboxq, phba->mbox_mem_pool);
 328         return;
 329 }
 330
 331 /**
 332  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 333  *      cfg_soft_wwnn, cfg_soft_wwpn
 334  * @vport: pointer to lpfc vport data structure.
 335  *
 336  *
 337  * Return codes
 338  *   None.
 339  **/
 340 void
 341 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 342 {
 343         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 344         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 345
 346         /* If the soft name exists then update it using the service params */
 347         if (vport->phba->cfg_soft_wwnn)
 348                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 349                            vport->fc_sparam.nodeName.u.wwn);
 350         if (vport->phba->cfg_soft_wwpn)
 351                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 352                            vport->fc_sparam.portName.u.wwn);
 353
 354         /*
 355          * If the name is empty or there exists a soft name
 356          * then copy the service params name, otherwise use the fc name
 357          */
 358         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 359                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 360                         sizeof(struct lpfc_name));
 361         else
 362                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 363                         sizeof(struct lpfc_name));
 364
 365         /*
 366          * If the port name has changed, then set the Param changes flag
 367          * to unreg the login
 368          */
 369         if (vport->fc_portname.u.wwn[0] != 0 &&
 370                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 371                         sizeof(struct lpfc_name)))
 372                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 373
 374         if (vport->fc_portname.u.wwn[0] == 0 ||
 375             vport->phba->cfg_soft_wwpn ||
 376             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 377             vport->vport_flag & FAWWPN_SET) {
 378                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 379                         sizeof(struct lpfc_name));
 380                 vport->vport_flag &= ~FAWWPN_SET;
 381                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 382                         vport->vport_flag |= FAWWPN_SET;
 383         }
 384         else
 385                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 386                         sizeof(struct lpfc_name));
 387 }
 388
 389 /**
 390  * lpfc_config_port_post - Perform lpfc initialization after config port
 391  * @phba: pointer to lpfc hba data structure.
 392  *
 393  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 394  * command call. It performs all internal resource and state setups on the
 395  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 396  * ELS ring timers, etc.
 397  *
 398  * Return codes
 399  *   0 - success.
 400  *   Any other value - error.
 401  **/
 402 int
 403 lpfc_config_port_post(struct lpfc_hba *phba)
 404 {
 405         struct lpfc_vport *vport = phba->pport;
 406         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 407         LPFC_MBOXQ_t *pmb;
 408         MAILBOX_t *mb;
 409         struct lpfc_dmabuf *mp;
 410         struct lpfc_sli *psli = &phba->sli;
 411         uint32_t status, timeout;
 412         int i, j;
 413         int rc;
 414
 415         spin_lock_irq(&phba->hbalock);
 416         /*
 417          * If the Config port completed correctly the HBA is not
 418          * over heated any more.
 419          */
 420         if (phba->over_temp_state == HBA_OVER_TEMP)
 421                 phba->over_temp_state = HBA_NORMAL_TEMP;
 422         spin_unlock_irq(&phba->hbalock);
 423
 424         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 425         if (!pmb) {
 426                 phba->link_state = LPFC_HBA_ERROR;
 427                 return -ENOMEM;
 428         }
 429         mb = &pmb->u.mb;
 430
 431         /* Get login parameters for NID.  */
 432         rc = lpfc_read_sparam(phba, pmb, 0);
 433         if (rc) {
 434                 mempool_free(pmb, phba->mbox_mem_pool);
 435                 return -ENOMEM;
 436         }
 437
 438         pmb->vport = vport;
 439         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 440                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 441                                 "0448 Adapter failed init, mbxCmd x%x "
 442                                 "READ_SPARM mbxStatus x%x\n",
 443                                 mb->mbxCommand, mb->mbxStatus);
 444                 phba->link_state = LPFC_HBA_ERROR;
 445                 mp = (struct lpfc_dmabuf *) pmb->context1;
 446                 mempool_free(pmb, phba->mbox_mem_pool);
 447                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 448                 kfree(mp);
 449                 return -EIO;
 450         }
 451
 452         mp = (struct lpfc_dmabuf *) pmb->context1;
 453
 454         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 455         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 456         kfree(mp);
 457         pmb->context1 = NULL;
 458         lpfc_update_vport_wwn(vport);
 459
 460         /* Update the fc_host data structures with new wwn. */
 461         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 462         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 463         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 464
 465         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 466         /* This should be consolidated into parse_vpd ? - mr */
 467         if (phba->SerialNumber[0] == 0) {
 468                 uint8_t *outptr;
 469
 470                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 471                 for (i = 0; i < 12; i++) {
 472                         status = *outptr++;
 473                         j = ((status & 0xf0) >> 4);
 474                         if (j <= 9)
 475                                 phba->SerialNumber[i] =
 476                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 477                         else
 478                                 phba->SerialNumber[i] =
 479                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 480                         i++;
 481                         j = (status & 0xf);
 482                         if (j <= 9)
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 485                         else
 486                                 phba->SerialNumber[i] =
 487                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 488                 }
 489         }
 490
 491         lpfc_read_config(phba, pmb);
 492         pmb->vport = vport;
 493         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 495                                 "0453 Adapter failed to init, mbxCmd x%x "
 496                                 "READ_CONFIG, mbxStatus x%x\n",
 497                                 mb->mbxCommand, mb->mbxStatus);
 498                 phba->link_state = LPFC_HBA_ERROR;
 499                 mempool_free( pmb, phba->mbox_mem_pool);
 500                 return -EIO;
 501         }
 502
 503         /* Check if the port is disabled */
 504         lpfc_sli_read_link_ste(phba);
 505
 506         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 507         i = (mb->un.varRdConfig.max_xri + 1);
 508         if (phba->cfg_hba_queue_depth > i) {
 509                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 510                                 "3359 HBA queue depth changed from %d to %d\n",
 511                                 phba->cfg_hba_queue_depth, i);
 512                 phba->cfg_hba_queue_depth = i;
 513         }
 514
 515         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 516         i = (mb->un.varRdConfig.max_xri >> 3);
 517         if (phba->pport->cfg_lun_queue_depth > i) {
 518                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 519                                 "3360 LUN queue depth changed from %d to %d\n",
 520                                 phba->pport->cfg_lun_queue_depth, i);
 521                 phba->pport->cfg_lun_queue_depth = i;
 522         }
 523
 524         phba->lmt = mb->un.varRdConfig.lmt;
 525
 526         /* Get the default values for Model Name and Description */
 527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 528
 529         phba->link_state = LPFC_LINK_DOWN;
 530
 531         /* Only process IOCBs on ELS ring till hba_state is READY */
 532         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536
 537         /* Post receive buffers for desired rings */
 538         if (phba->sli_rev != 3)
 539                 lpfc_post_rcv_buf(phba);
 540
 541         /*
 542          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 543          */
 544         if (phba->intr_type == MSIX) {
 545                 rc = lpfc_config_msi(phba, pmb);
 546                 if (rc) {
 547                         mempool_free(pmb, phba->mbox_mem_pool);
 548                         return -EIO;
 549                 }
 550                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 551                 if (rc != MBX_SUCCESS) {
 552                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 553                                         "0352 Config MSI mailbox command "
 554                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 555                                         pmb->u.mb.mbxCommand,
 556                                         pmb->u.mb.mbxStatus);
 557                         mempool_free(pmb, phba->mbox_mem_pool);
 558                         return -EIO;
 559                 }
 560         }
 561
 562         spin_lock_irq(&phba->hbalock);
 563         /* Initialize ERATT handling flag */
 564         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 565
 566         /* Enable appropriate host interrupts */
 567         if (lpfc_readl(phba->HCregaddr, &status)) {
 568                 spin_unlock_irq(&phba->hbalock);
 569                 return -EIO;
 570         }
 571         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 572         if (psli->num_rings > 0)
 573                 status |= HC_R0INT_ENA;
 574         if (psli->num_rings > 1)
 575                 status |= HC_R1INT_ENA;
 576         if (psli->num_rings > 2)
 577                 status |= HC_R2INT_ENA;
 578         if (psli->num_rings > 3)
 579                 status |= HC_R3INT_ENA;
 580
 581         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 582             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 583                 status &= ~(HC_R0INT_ENA);
 584
 585         writel(status, phba->HCregaddr);
 586         readl(phba->HCregaddr); /* flush */
 587         spin_unlock_irq(&phba->hbalock);
 588
 589         /* Set up ring-0 (ELS) timer */
 590         timeout = phba->fc_ratov * 2;
 591         mod_timer(&vport->els_tmofunc,
 592                   jiffies + msecs_to_jiffies(1000 * timeout));
 593         /* Set up heart beat (HB) timer */
 594         mod_timer(&phba->hb_tmofunc,
 595                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 596         phba->hb_outstanding = 0;
 597         phba->last_completion_time = jiffies;
 598         /* Set up error attention (ERATT) polling timer */
 599         mod_timer(&phba->eratt_poll,
 600                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 601
 602         if (phba->hba_flag & LINK_DISABLED) {
 603                 lpfc_printf_log(phba,
 604                         KERN_ERR, LOG_INIT,
 605                         "2598 Adapter Link is disabled.\n");
 606                 lpfc_down_link(phba, pmb);
 607                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 608                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 609                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 610                         lpfc_printf_log(phba,
 611                         KERN_ERR, LOG_INIT,
 612                         "2599 Adapter failed to issue DOWN_LINK"
 613                         " mbox command rc 0x%x\n", rc);
 614
 615                         mempool_free(pmb, phba->mbox_mem_pool);
 616                         return -EIO;
 617                 }
 618         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 619                 mempool_free(pmb, phba->mbox_mem_pool);
 620                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 621                 if (rc)
 622                         return rc;
 623         }
 624         /* MBOX buffer will be freed in mbox compl */
 625         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 626         if (!pmb) {
 627                 phba->link_state = LPFC_HBA_ERROR;
 628                 return -ENOMEM;
 629         }
 630
 631         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 632         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 633         pmb->vport = phba->pport;
 634         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 635
 636         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 637                 lpfc_printf_log(phba,
 638                                 KERN_ERR,
 639                                 LOG_INIT,
 640                                 "0456 Adapter failed to issue "
 641                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 642                                 rc);
 643                 mempool_free(pmb, phba->mbox_mem_pool);
 644         }
 645
 646         /* Get Option rom version */
 647         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 648         if (!pmb) {
 649                 phba->link_state = LPFC_HBA_ERROR;
 650                 return -ENOMEM;
 651         }
 652
 653         lpfc_dump_wakeup_param(phba, pmb);
 654         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 655         pmb->vport = phba->pport;
 656         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 657
 658         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 660                                 "to get Option ROM version status x%x\n", rc);
 661                 mempool_free(pmb, phba->mbox_mem_pool);
 662         }
 663
 664         return 0;
 665 }
 666
 667 /**
 668  * lpfc_hba_init_link - Initialize the FC link
 669  * @phba: pointer to lpfc hba data structure.
 670  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 671  *
 672  * This routine will issue the INIT_LINK mailbox command call.
 673  * It is available to other drivers through the lpfc_hba data
 674  * structure for use as a delayed link up mechanism with the
 675  * module parameter lpfc_suppress_link_up.
 676  *
 677  * Return code
 678  *              0 - success
 679  *              Any other value - error
 680  **/
 681 static int
 682 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 683 {
 684         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 685 }
 686
 687 /**
 688  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 689  * @phba: pointer to lpfc hba data structure.
 690  * @fc_topology: desired fc topology.
 691  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 692  *
 693  * This routine will issue the INIT_LINK mailbox command call.
 694  * It is available to other drivers through the lpfc_hba data
 695  * structure for use as a delayed link up mechanism with the
 696  * module parameter lpfc_suppress_link_up.
 697  *
 698  * Return code
 699  *              0 - success
 700  *              Any other value - error
 701  **/
 702 int
 703 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 704                                uint32_t flag)
 705 {
 706         struct lpfc_vport *vport = phba->pport;
 707         LPFC_MBOXQ_t *pmb;
 708         MAILBOX_t *mb;
 709         int rc;
 710
 711         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 712         if (!pmb) {
 713                 phba->link_state = LPFC_HBA_ERROR;
 714                 return -ENOMEM;
 715         }
 716         mb = &pmb->u.mb;
 717         pmb->vport = vport;
 718
 719         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 720             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 721              !(phba->lmt & LMT_1Gb)) ||
 722             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 723              !(phba->lmt & LMT_2Gb)) ||
 724             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 725              !(phba->lmt & LMT_4Gb)) ||
 726             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 727              !(phba->lmt & LMT_8Gb)) ||
 728             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 729              !(phba->lmt & LMT_10Gb)) ||
 730             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 731              !(phba->lmt & LMT_16Gb)) ||
 732             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 733              !(phba->lmt & LMT_32Gb))) {
 734                 /* Reset link speed to auto */
 735                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 736                         "1302 Invalid speed for this board:%d "
 737                         "Reset link speed to auto.\n",
 738                         phba->cfg_link_speed);
 739                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 740         }
 741         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 742         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 743         if (phba->sli_rev < LPFC_SLI_REV4)
 744                 lpfc_set_loopback_flag(phba);
 745         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 746         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 748                         "0498 Adapter failed to init, mbxCmd x%x "
 749                         "INIT_LINK, mbxStatus x%x\n",
 750                         mb->mbxCommand, mb->mbxStatus);
 751                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 752                         /* Clear all interrupt enable conditions */
 753                         writel(0, phba->HCregaddr);
 754                         readl(phba->HCregaddr); /* flush */
 755                         /* Clear all pending interrupts */
 756                         writel(0xffffffff, phba->HAregaddr);
 757                         readl(phba->HAregaddr); /* flush */
 758                 }
 759                 phba->link_state = LPFC_HBA_ERROR;
 760                 if (rc != MBX_BUSY || flag == MBX_POLL)
 761                         mempool_free(pmb, phba->mbox_mem_pool);
 762                 return -EIO;
 763         }
 764         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 765         if (flag == MBX_POLL)
 766                 mempool_free(pmb, phba->mbox_mem_pool);
 767
 768         return 0;
 769 }
 770
 771 /**
 772  * lpfc_hba_down_link - this routine downs the FC link
 773  * @phba: pointer to lpfc hba data structure.
 774  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 775  *
 776  * This routine will issue the DOWN_LINK mailbox command call.
 777  * It is available to other drivers through the lpfc_hba data
 778  * structure for use to stop the link.
 779  *
 780  * Return code
 781  *              0 - success
 782  *              Any other value - error
 783  **/
 784 static int
 785 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 786 {
 787         LPFC_MBOXQ_t *pmb;
 788         int rc;
 789
 790         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 791         if (!pmb) {
 792                 phba->link_state = LPFC_HBA_ERROR;
 793                 return -ENOMEM;
 794         }
 795
 796         lpfc_printf_log(phba,
 797                 KERN_ERR, LOG_INIT,
 798                 "0491 Adapter Link is disabled.\n");
 799         lpfc_down_link(phba, pmb);
 800         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 801         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 802         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 803                 lpfc_printf_log(phba,
 804                 KERN_ERR, LOG_INIT,
 805                 "2522 Adapter failed to issue DOWN_LINK"
 806                 " mbox command rc 0x%x\n", rc);
 807
 808                 mempool_free(pmb, phba->mbox_mem_pool);
 809                 return -EIO;
 810         }
 811         if (flag == MBX_POLL)
 812                 mempool_free(pmb, phba->mbox_mem_pool);
 813
 814         return 0;
 815 }
 816
 817 /**
 818  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 819  * @phba: pointer to lpfc HBA data structure.
 820  *
 821  * This routine will do LPFC uninitialization before the HBA is reset when
 822  * bringing down the SLI Layer.
 823  *
 824  * Return codes
 825  *   0 - success.
 826  *   Any other value - error.
 827  **/
 828 int
 829 lpfc_hba_down_prep(struct lpfc_hba *phba)
 830 {
 831         struct lpfc_vport **vports;
 832         int i;
 833
 834         if (phba->sli_rev <= LPFC_SLI_REV3) {
 835                 /* Disable interrupts */
 836                 writel(0, phba->HCregaddr);
 837                 readl(phba->HCregaddr); /* flush */
 838         }
 839
 840         if (phba->pport->load_flag & FC_UNLOADING)
 841                 lpfc_cleanup_discovery_resources(phba->pport);
 842         else {
 843                 vports = lpfc_create_vport_work_array(phba);
 844                 if (vports != NULL)
 845                         for (i = 0; i <= phba->max_vports &&
 846                                 vports[i] != NULL; i++)
 847                                 lpfc_cleanup_discovery_resources(vports[i]);
 848                 lpfc_destroy_vport_work_array(phba, vports);
 849         }
 850         return 0;
 851 }
 852
 853 /**
 854  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 855  * rspiocb which got deferred
 856  *
 857  * @phba: pointer to lpfc HBA data structure.
 858  *
 859  * This routine will cleanup completed slow path events after HBA is reset
 860  * when bringing down the SLI Layer.
 861  *
 862  *
 863  * Return codes
 864  *   void.
 865  **/
 866 static void
 867 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 868 {
 869         struct lpfc_iocbq *rspiocbq;
 870         struct hbq_dmabuf *dmabuf;
 871         struct lpfc_cq_event *cq_event;
 872
 873         spin_lock_irq(&phba->hbalock);
 874         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 875         spin_unlock_irq(&phba->hbalock);
 876
 877         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 878                 /* Get the response iocb from the head of work queue */
 879                 spin_lock_irq(&phba->hbalock);
 880                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 881                                  cq_event, struct lpfc_cq_event, list);
 882                 spin_unlock_irq(&phba->hbalock);
 883
 884                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 885                 case CQE_CODE_COMPL_WQE:
 886                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 887                                                  cq_event);
 888                         lpfc_sli_release_iocbq(phba, rspiocbq);
 889                         break;
 890                 case CQE_CODE_RECEIVE:
 891                 case CQE_CODE_RECEIVE_V1:
 892                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 893                                               cq_event);
 894                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 895                 }
 896         }
 897 }
 898
 899 /**
 900  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 901  * @phba: pointer to lpfc HBA data structure.
 902  *
 903  * This routine will cleanup posted ELS buffers after the HBA is reset
 904  * when bringing down the SLI Layer.
 905  *
 906  *
 907  * Return codes
 908  *   void.
 909  **/
 910 static void
 911 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 912 {
 913         struct lpfc_sli *psli = &phba->sli;
 914         struct lpfc_sli_ring *pring;
 915         struct lpfc_dmabuf *mp, *next_mp;
 916         LIST_HEAD(buflist);
 917         int count;
 918
 919         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 920                 lpfc_sli_hbqbuf_free_all(phba);
 921         else {
 922                 /* Cleanup preposted buffers on the ELS ring */
 923                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 924                 spin_lock_irq(&phba->hbalock);
 925                 list_splice_init(&pring->postbufq, &buflist);
 926                 spin_unlock_irq(&phba->hbalock);
 927
 928                 count = 0;
 929                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 930                         list_del(&mp->list);
 931                         count++;
 932                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 933                         kfree(mp);
 934                 }
 935
 936                 spin_lock_irq(&phba->hbalock);
 937                 pring->postbufq_cnt -= count;
 938                 spin_unlock_irq(&phba->hbalock);
 939         }
 940 }
 941
 942 /**
 943  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 944  * @phba: pointer to lpfc HBA data structure.
 945  *
 946  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 947  * down the SLI Layer.
 948  *
 949  * Return codes
 950  *   void
 951  **/
 952 static void
 953 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 954 {
 955         struct lpfc_sli *psli = &phba->sli;
 956         struct lpfc_queue *qp = NULL;
 957         struct lpfc_sli_ring *pring;
 958         LIST_HEAD(completions);
 959         int i;
 960
 961         if (phba->sli_rev != LPFC_SLI_REV4) {
 962                 for (i = 0; i < psli->num_rings; i++) {
 963                         pring = &psli->sli3_ring[i];
 964                         spin_lock_irq(&phba->hbalock);
 965                         /* At this point in time the HBA is either reset or DOA
 966                          * Nothing should be on txcmplq as it will
 967                          * NEVER complete.
 968                          */
 969                         list_splice_init(&pring->txcmplq, &completions);
 970                         pring->txcmplq_cnt = 0;
 971                         spin_unlock_irq(&phba->hbalock);
 972
 973                         lpfc_sli_abort_iocb_ring(phba, pring);
 974                 }
 975                 /* Cancel all the IOCBs from the completions list */
 976                 lpfc_sli_cancel_iocbs(phba, &completions,
 977                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 978                 return;
 979         }
 980         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 981                 pring = qp->pring;
 982                 if (!pring)
 983                         continue;
 984                 spin_lock_irq(&pring->ring_lock);
 985                 list_splice_init(&pring->txcmplq, &completions);
 986                 pring->txcmplq_cnt = 0;
 987                 spin_unlock_irq(&pring->ring_lock);
 988                 lpfc_sli_abort_iocb_ring(phba, pring);
 989         }
 990         /* Cancel all the IOCBs from the completions list */
 991         lpfc_sli_cancel_iocbs(phba, &completions,
 992                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 993 }
 994
 995 /**
 996  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 997         int i;
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will do uninitialization after the HBA is reset when bring
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   0 - success.
1005  *   Any other value - error.
1006  **/
1007 static int
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1009 {
1010         lpfc_hba_free_post_buf(phba);
1011         lpfc_hba_clean_txcmplq(phba);
1012         return 0;
1013 }
1014
1015 /**
1016  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017  * @phba: pointer to lpfc HBA data structure.
1018  *
1019  * This routine will do uninitialization after the HBA is reset when bring
1020  * down the SLI Layer.
1021  *
1022  * Return codes
1023  *   0 - success.
1024  *   Any other value - error.
1025  **/
1026 static int
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1028 {
1029         struct lpfc_scsi_buf *psb, *psb_next;
1030         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1031         LIST_HEAD(aborts);
1032         LIST_HEAD(nvme_aborts);
1033         LIST_HEAD(nvmet_aborts);
1034         unsigned long iflag = 0;
1035         struct lpfc_sglq *sglq_entry = NULL;
1036
1037
1038         lpfc_sli_hbqbuf_free_all(phba);
1039         lpfc_hba_clean_txcmplq(phba);
1040
1041         /* At this point in time the HBA is either reset or DOA. Either
1042          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1043          * on the lpfc_els_sgl_list so that it can either be freed if the
1044          * driver is unloading or reposted if the driver is restarting
1045          * the port.
1046          */
1047         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1048                                         /* scsl_buf_list */
1049         /* sgl_list_lock required because worker thread uses this
1050          * list.
1051          */
1052         spin_lock(&phba->sli4_hba.sgl_list_lock);
1053         list_for_each_entry(sglq_entry,
1054                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055                 sglq_entry->state = SGL_FREED;
1056
1057         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058                         &phba->sli4_hba.lpfc_els_sgl_list);
1059
1060
1061         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1062         /* abts_scsi_buf_list_lock required because worker thread uses this
1063          * list.
1064          */
1065         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1066                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1067                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1068                                  &aborts);
1069                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1070         }
1071
1072         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1073                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1074                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1075                                  &nvme_aborts);
1076                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1077                                  &nvmet_aborts);
1078                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1079         }
1080
1081         spin_unlock_irq(&phba->hbalock);
1082
1083         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1084                 psb->pCmd = NULL;
1085                 psb->status = IOSTAT_SUCCESS;
1086         }
1087         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1088         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1089         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1090
1091         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1093                         psb->pCmd = NULL;
1094                         psb->status = IOSTAT_SUCCESS;
1095                 }
1096                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1097                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1098                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1099
1100                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1101                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1102                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1103                 }
1104         }
1105
1106         lpfc_sli4_free_sp_events(phba);
1107         return 0;
1108 }
1109
1110 /**
1111  * lpfc_hba_down_post - Wrapper func for hba down post routine
1112  * @phba: pointer to lpfc HBA data structure.
1113  *
1114  * This routine wraps the actual SLI3 or SLI4 routine for performing
1115  * uninitialization after the HBA is reset when bring down the SLI Layer.
1116  *
1117  * Return codes
1118  *   0 - success.
1119  *   Any other value - error.
1120  **/
1121 int
1122 lpfc_hba_down_post(struct lpfc_hba *phba)
1123 {
1124         return (*phba->lpfc_hba_down_post)(phba);
1125 }
1126
1127 /**
1128  * lpfc_hb_timeout - The HBA-timer timeout handler
1129  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1130  *
1131  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1132  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1133  * work-port-events bitmap and the worker thread is notified. This timeout
1134  * event will be used by the worker thread to invoke the actual timeout
1135  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1136  * be performed in the timeout handler and the HBA timeout event bit shall
1137  * be cleared by the worker thread after it has taken the event bitmap out.
1138  **/
1139 static void
1140 lpfc_hb_timeout(unsigned long ptr)
1141 {
1142         struct lpfc_hba *phba;
1143         uint32_t tmo_posted;
1144         unsigned long iflag;
1145
1146         phba = (struct lpfc_hba *)ptr;
1147
1148         /* Check for heart beat timeout conditions */
1149         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1150         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1151         if (!tmo_posted)
1152                 phba->pport->work_port_events |= WORKER_HB_TMO;
1153         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1154
1155         /* Tell the worker thread there is work to do */
1156         if (!tmo_posted)
1157                 lpfc_worker_wake_up(phba);
1158         return;
1159 }
1160
1161 /**
1162  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1163  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1164  *
1165  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1166  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1167  * work-port-events bitmap and the worker thread is notified. This timeout
1168  * event will be used by the worker thread to invoke the actual timeout
1169  * handler routine, lpfc_rrq_handler. Any periodical operations will
1170  * be performed in the timeout handler and the RRQ timeout event bit shall
1171  * be cleared by the worker thread after it has taken the event bitmap out.
1172  **/
1173 static void
1174 lpfc_rrq_timeout(unsigned long ptr)
1175 {
1176         struct lpfc_hba *phba;
1177         unsigned long iflag;
1178
1179         phba = (struct lpfc_hba *)ptr;
1180         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1181         if (!(phba->pport->load_flag & FC_UNLOADING))
1182                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1183         else
1184                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1185         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1186
1187         if (!(phba->pport->load_flag & FC_UNLOADING))
1188                 lpfc_worker_wake_up(phba);
1189 }
1190
1191 /**
1192  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1193  * @phba: pointer to lpfc hba data structure.
1194  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1195  *
1196  * This is the callback function to the lpfc heart-beat mailbox command.
1197  * If configured, the lpfc driver issues the heart-beat mailbox command to
1198  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1199  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1200  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1201  * heart-beat outstanding state. Once the mailbox command comes back and
1202  * no error conditions detected, the heart-beat mailbox command timer is
1203  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1204  * state is cleared for the next heart-beat. If the timer expired with the
1205  * heart-beat outstanding state set, the driver will put the HBA offline.
1206  **/
1207 static void
1208 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1209 {
1210         unsigned long drvr_flag;
1211
1212         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1213         phba->hb_outstanding = 0;
1214         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1215
1216         /* Check and reset heart-beat timer is necessary */
1217         mempool_free(pmboxq, phba->mbox_mem_pool);
1218         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1219                 !(phba->link_state == LPFC_HBA_ERROR) &&
1220                 !(phba->pport->load_flag & FC_UNLOADING))
1221                 mod_timer(&phba->hb_tmofunc,
1222                           jiffies +
1223                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1224         return;
1225 }
1226
1227 /**
1228  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1229  * @phba: pointer to lpfc hba data structure.
1230  *
1231  * This is the actual HBA-timer timeout handler to be invoked by the worker
1232  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1233  * handler performs any periodic operations needed for the device. If such
1234  * periodic event has already been attended to either in the interrupt handler
1235  * or by processing slow-ring or fast-ring events within the HBA-timer
1236  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1237  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1238  * is configured and there is no heart-beat mailbox command outstanding, a
1239  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1240  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1241  * to offline.
1242  **/
1243 void
1244 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1245 {
1246         struct lpfc_vport **vports;
1247         LPFC_MBOXQ_t *pmboxq;
1248         struct lpfc_dmabuf *buf_ptr;
1249         int retval, i;
1250         struct lpfc_sli *psli = &phba->sli;
1251         LIST_HEAD(completions);
1252         struct lpfc_queue *qp;
1253         unsigned long time_elapsed;
1254         uint32_t tick_cqe, max_cqe, val;
1255         uint64_t tot, data1, data2, data3;
1256         struct lpfc_register reg_data;
1257         void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1258
1259         vports = lpfc_create_vport_work_array(phba);
1260         if (vports != NULL)
1261                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1262                         lpfc_rcv_seq_check_edtov(vports[i]);
1263                         lpfc_fdmi_num_disc_check(vports[i]);
1264                 }
1265         lpfc_destroy_vport_work_array(phba, vports);
1266
1267         if ((phba->link_state == LPFC_HBA_ERROR) ||
1268                 (phba->pport->load_flag & FC_UNLOADING) ||
1269                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1270                 return;
1271
1272         if (phba->cfg_auto_imax) {
1273                 if (!phba->last_eqdelay_time) {
1274                         phba->last_eqdelay_time = jiffies;
1275                         goto skip_eqdelay;
1276                 }
1277                 time_elapsed = jiffies - phba->last_eqdelay_time;
1278                 phba->last_eqdelay_time = jiffies;
1279
1280                 tot = 0xffff;
1281                 /* Check outstanding IO count */
1282                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1283                         if (phba->nvmet_support) {
1284                                 spin_lock(&phba->sli4_hba.nvmet_ctx_get_lock);
1285                                 spin_lock(&phba->sli4_hba.nvmet_ctx_put_lock);
1286                                 tot = phba->sli4_hba.nvmet_xri_cnt -
1287                                         (phba->sli4_hba.nvmet_ctx_get_cnt +
1288                                         phba->sli4_hba.nvmet_ctx_put_cnt);
1289                                 spin_unlock(&phba->sli4_hba.nvmet_ctx_put_lock);
1290                                 spin_unlock(&phba->sli4_hba.nvmet_ctx_get_lock);
1291                         } else {
1292                                 tot = atomic_read(&phba->fc4NvmeIoCmpls);
1293                                 data1 = atomic_read(
1294                                         &phba->fc4NvmeInputRequests);
1295                                 data2 = atomic_read(
1296                                         &phba->fc4NvmeOutputRequests);
1297                                 data3 = atomic_read(
1298                                         &phba->fc4NvmeControlRequests);
1299                                 tot =  (data1 + data2 + data3) - tot;
1300                         }
1301                 }
1302
1303                 /* Interrupts per sec per EQ */
1304                 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1305                 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1306
1307                 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1308                 max_cqe = time_elapsed * tick_cqe;
1309
1310                 for (i = 0; i < phba->io_channel_irqs; i++) {
1311                         /* Fast-path EQ */
1312                         qp = phba->sli4_hba.hba_eq[i];
1313                         if (!qp)
1314                                 continue;
1315
1316                         /* Use no EQ delay if we don't have many outstanding
1317                          * IOs, or if we are only processing 1 CQE/ISR or less.
1318                          * Otherwise, assume we can process up to lpfc_fcp_imax
1319                          * interrupts per HBA.
1320                          */
1321                         if (tot < LPFC_NODELAY_MAX_IO ||
1322                             qp->EQ_cqe_cnt <= max_cqe)
1323                                 val = 0;
1324                         else
1325                                 val = phba->cfg_fcp_imax;
1326
1327                         if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1328                                 /* Use EQ Delay Register method */
1329
1330                                 /* Convert for EQ Delay register */
1331                                 if (val) {
1332                                         /* First, interrupts per sec per EQ */
1333                                         val = phba->cfg_fcp_imax /
1334                                                 phba->io_channel_irqs;
1335
1336                                         /* us delay between each interrupt */
1337                                         val = LPFC_SEC_TO_USEC / val;
1338                                 }
1339                                 if (val != qp->q_mode) {
1340                                         reg_data.word0 = 0;
1341                                         bf_set(lpfc_sliport_eqdelay_id,
1342                                                &reg_data, qp->queue_id);
1343                                         bf_set(lpfc_sliport_eqdelay_delay,
1344                                                &reg_data, val);
1345                                         writel(reg_data.word0, eqdreg);
1346                                 }
1347                         } else {
1348                                 /* Use mbox command method */
1349                                 if (val != qp->q_mode)
1350                                         lpfc_modify_hba_eq_delay(phba, i,
1351                                                                  1, val);
1352                         }
1353
1354                         /*
1355                          * val is cfg_fcp_imax or 0 for mbox delay or us delay
1356                          * between interrupts for EQDR.
1357                          */
1358                         qp->q_mode = val;
1359                         qp->EQ_cqe_cnt = 0;
1360                 }
1361         }
1362
1363 skip_eqdelay:
1364         spin_lock_irq(&phba->pport->work_port_lock);
1365
1366         if (time_after(phba->last_completion_time +
1367                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1368                         jiffies)) {
1369                 spin_unlock_irq(&phba->pport->work_port_lock);
1370                 if (!phba->hb_outstanding)
1371                         mod_timer(&phba->hb_tmofunc,
1372                                 jiffies +
1373                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1374                 else
1375                         mod_timer(&phba->hb_tmofunc,
1376                                 jiffies +
1377                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1378                 return;
1379         }
1380         spin_unlock_irq(&phba->pport->work_port_lock);
1381
1382         if (phba->elsbuf_cnt &&
1383                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1384                 spin_lock_irq(&phba->hbalock);
1385                 list_splice_init(&phba->elsbuf, &completions);
1386                 phba->elsbuf_cnt = 0;
1387                 phba->elsbuf_prev_cnt = 0;
1388                 spin_unlock_irq(&phba->hbalock);
1389
1390                 while (!list_empty(&completions)) {
1391                         list_remove_head(&completions, buf_ptr,
1392                                 struct lpfc_dmabuf, list);
1393                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1394                         kfree(buf_ptr);
1395                 }
1396         }
1397         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1398
1399         /* If there is no heart beat outstanding, issue a heartbeat command */
1400         if (phba->cfg_enable_hba_heartbeat) {
1401                 if (!phba->hb_outstanding) {
1402                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1403                                 (list_empty(&psli->mboxq))) {
1404                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1405                                                         GFP_KERNEL);
1406                                 if (!pmboxq) {
1407                                         mod_timer(&phba->hb_tmofunc,
1408                                                  jiffies +
1409                                                  msecs_to_jiffies(1000 *
1410                                                  LPFC_HB_MBOX_INTERVAL));
1411                                         return;
1412                                 }
1413
1414                                 lpfc_heart_beat(phba, pmboxq);
1415                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1416                                 pmboxq->vport = phba->pport;
1417                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1418                                                 MBX_NOWAIT);
1419
1420                                 if (retval != MBX_BUSY &&
1421                                         retval != MBX_SUCCESS) {
1422                                         mempool_free(pmboxq,
1423                                                         phba->mbox_mem_pool);
1424                                         mod_timer(&phba->hb_tmofunc,
1425                                                 jiffies +
1426                                                 msecs_to_jiffies(1000 *
1427                                                 LPFC_HB_MBOX_INTERVAL));
1428                                         return;
1429                                 }
1430                                 phba->skipped_hb = 0;
1431                                 phba->hb_outstanding = 1;
1432                         } else if (time_before_eq(phba->last_completion_time,
1433                                         phba->skipped_hb)) {
1434                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1435                                         "2857 Last completion time not "
1436                                         " updated in %d ms\n",
1437                                         jiffies_to_msecs(jiffies
1438                                                  - phba->last_completion_time));
1439                         } else
1440                                 phba->skipped_hb = jiffies;
1441
1442                         mod_timer(&phba->hb_tmofunc,
1443                                  jiffies +
1444                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1445                         return;
1446                 } else {
1447                         /*
1448                         * If heart beat timeout called with hb_outstanding set
1449                         * we need to give the hb mailbox cmd a chance to
1450                         * complete or TMO.
1451                         */
1452                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1453                                         "0459 Adapter heartbeat still out"
1454                                         "standing:last compl time was %d ms.\n",
1455                                         jiffies_to_msecs(jiffies
1456                                                  - phba->last_completion_time));
1457                         mod_timer(&phba->hb_tmofunc,
1458                                 jiffies +
1459                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1460                 }
1461         } else {
1462                         mod_timer(&phba->hb_tmofunc,
1463                                 jiffies +
1464                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1465         }
1466 }
1467
1468 /**
1469  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1470  * @phba: pointer to lpfc hba data structure.
1471  *
1472  * This routine is called to bring the HBA offline when HBA hardware error
1473  * other than Port Error 6 has been detected.
1474  **/
1475 static void
1476 lpfc_offline_eratt(struct lpfc_hba *phba)
1477 {
1478         struct lpfc_sli   *psli = &phba->sli;
1479
1480         spin_lock_irq(&phba->hbalock);
1481         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1482         spin_unlock_irq(&phba->hbalock);
1483         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1484
1485         lpfc_offline(phba);
1486         lpfc_reset_barrier(phba);
1487         spin_lock_irq(&phba->hbalock);
1488         lpfc_sli_brdreset(phba);
1489         spin_unlock_irq(&phba->hbalock);
1490         lpfc_hba_down_post(phba);
1491         lpfc_sli_brdready(phba, HS_MBRDY);
1492         lpfc_unblock_mgmt_io(phba);
1493         phba->link_state = LPFC_HBA_ERROR;
1494         return;
1495 }
1496
1497 /**
1498  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1499  * @phba: pointer to lpfc hba data structure.
1500  *
1501  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1502  * other than Port Error 6 has been detected.
1503  **/
1504 void
1505 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1506 {
1507         spin_lock_irq(&phba->hbalock);
1508         phba->link_state = LPFC_HBA_ERROR;
1509         spin_unlock_irq(&phba->hbalock);
1510
1511         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512         lpfc_offline(phba);
1513         lpfc_hba_down_post(phba);
1514         lpfc_unblock_mgmt_io(phba);
1515 }
1516
1517 /**
1518  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1519  * @phba: pointer to lpfc hba data structure.
1520  *
1521  * This routine is invoked to handle the deferred HBA hardware error
1522  * conditions. This type of error is indicated by HBA by setting ER1
1523  * and another ER bit in the host status register. The driver will
1524  * wait until the ER1 bit clears before handling the error condition.
1525  **/
1526 static void
1527 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1528 {
1529         uint32_t old_host_status = phba->work_hs;
1530         struct lpfc_sli *psli = &phba->sli;
1531
1532         /* If the pci channel is offline, ignore possible errors,
1533          * since we cannot communicate with the pci card anyway.
1534          */
1535         if (pci_channel_offline(phba->pcidev)) {
1536                 spin_lock_irq(&phba->hbalock);
1537                 phba->hba_flag &= ~DEFER_ERATT;
1538                 spin_unlock_irq(&phba->hbalock);
1539                 return;
1540         }
1541
1542         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1543                 "0479 Deferred Adapter Hardware Error "
1544                 "Data: x%x x%x x%x\n",
1545                 phba->work_hs,
1546                 phba->work_status[0], phba->work_status[1]);
1547
1548         spin_lock_irq(&phba->hbalock);
1549         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1550         spin_unlock_irq(&phba->hbalock);
1551
1552
1553         /*
1554          * Firmware stops when it triggred erratt. That could cause the I/Os
1555          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1556          * SCSI layer retry it after re-establishing link.
1557          */
1558         lpfc_sli_abort_fcp_rings(phba);
1559
1560         /*
1561          * There was a firmware error. Take the hba offline and then
1562          * attempt to restart it.
1563          */
1564         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1565         lpfc_offline(phba);
1566
1567         /* Wait for the ER1 bit to clear.*/
1568         while (phba->work_hs & HS_FFER1) {
1569                 msleep(100);
1570                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1571                         phba->work_hs = UNPLUG_ERR ;
1572                         break;
1573                 }
1574                 /* If driver is unloading let the worker thread continue */
1575                 if (phba->pport->load_flag & FC_UNLOADING) {
1576                         phba->work_hs = 0;
1577                         break;
1578                 }
1579         }
1580
1581         /*
1582          * This is to ptrotect against a race condition in which
1583          * first write to the host attention register clear the
1584          * host status register.
1585          */
1586         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1587                 phba->work_hs = old_host_status & ~HS_FFER1;
1588
1589         spin_lock_irq(&phba->hbalock);
1590         phba->hba_flag &= ~DEFER_ERATT;
1591         spin_unlock_irq(&phba->hbalock);
1592         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1593         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1594 }
1595
1596 static void
1597 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1598 {
1599         struct lpfc_board_event_header board_event;
1600         struct Scsi_Host *shost;
1601
1602         board_event.event_type = FC_REG_BOARD_EVENT;
1603         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1604         shost = lpfc_shost_from_vport(phba->pport);
1605         fc_host_post_vendor_event(shost, fc_get_event_number(),
1606                                   sizeof(board_event),
1607                                   (char *) &board_event,
1608                                   LPFC_NL_VENDOR_ID);
1609 }
1610
1611 /**
1612  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1613  * @phba: pointer to lpfc hba data structure.
1614  *
1615  * This routine is invoked to handle the following HBA hardware error
1616  * conditions:
1617  * 1 - HBA error attention interrupt
1618  * 2 - DMA ring index out of range
1619  * 3 - Mailbox command came back as unknown
1620  **/
1621 static void
1622 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_vport *vport = phba->pport;
1625         struct lpfc_sli   *psli = &phba->sli;
1626         uint32_t event_data;
1627         unsigned long temperature;
1628         struct temp_event temp_event_data;
1629         struct Scsi_Host  *shost;
1630
1631         /* If the pci channel is offline, ignore possible errors,
1632          * since we cannot communicate with the pci card anyway.
1633          */
1634         if (pci_channel_offline(phba->pcidev)) {
1635                 spin_lock_irq(&phba->hbalock);
1636                 phba->hba_flag &= ~DEFER_ERATT;
1637                 spin_unlock_irq(&phba->hbalock);
1638                 return;
1639         }
1640
1641         /* If resets are disabled then leave the HBA alone and return */
1642         if (!phba->cfg_enable_hba_reset)
1643                 return;
1644
1645         /* Send an internal error event to mgmt application */
1646         lpfc_board_errevt_to_mgmt(phba);
1647
1648         if (phba->hba_flag & DEFER_ERATT)
1649                 lpfc_handle_deferred_eratt(phba);
1650
1651         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1652                 if (phba->work_hs & HS_FFER6)
1653                         /* Re-establishing Link */
1654                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1655                                         "1301 Re-establishing Link "
1656                                         "Data: x%x x%x x%x\n",
1657                                         phba->work_hs, phba->work_status[0],
1658                                         phba->work_status[1]);
1659                 if (phba->work_hs & HS_FFER8)
1660                         /* Device Zeroization */
1661                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1662                                         "2861 Host Authentication device "
1663                                         "zeroization Data:x%x x%x x%x\n",
1664                                         phba->work_hs, phba->work_status[0],
1665                                         phba->work_status[1]);
1666
1667                 spin_lock_irq(&phba->hbalock);
1668                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1669                 spin_unlock_irq(&phba->hbalock);
1670
1671                 /*
1672                 * Firmware stops when it triggled erratt with HS_FFER6.
1673                 * That could cause the I/Os dropped by the firmware.
1674                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1675                 * retry it after re-establishing link.
1676                 */
1677                 lpfc_sli_abort_fcp_rings(phba);
1678
1679                 /*
1680                  * There was a firmware error.  Take the hba offline and then
1681                  * attempt to restart it.
1682                  */
1683                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1684                 lpfc_offline(phba);
1685                 lpfc_sli_brdrestart(phba);
1686                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1687                         lpfc_unblock_mgmt_io(phba);
1688                         return;
1689                 }
1690                 lpfc_unblock_mgmt_io(phba);
1691         } else if (phba->work_hs & HS_CRIT_TEMP) {
1692                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1693                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1694                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1695                 temp_event_data.data = (uint32_t)temperature;
1696
1697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1698                                 "0406 Adapter maximum temperature exceeded "
1699                                 "(%ld), taking this port offline "
1700                                 "Data: x%x x%x x%x\n",
1701                                 temperature, phba->work_hs,
1702                                 phba->work_status[0], phba->work_status[1]);
1703
1704                 shost = lpfc_shost_from_vport(phba->pport);
1705                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1706                                           sizeof(temp_event_data),
1707                                           (char *) &temp_event_data,
1708                                           SCSI_NL_VID_TYPE_PCI
1709                                           | PCI_VENDOR_ID_EMULEX);
1710
1711                 spin_lock_irq(&phba->hbalock);
1712                 phba->over_temp_state = HBA_OVER_TEMP;
1713                 spin_unlock_irq(&phba->hbalock);
1714                 lpfc_offline_eratt(phba);
1715
1716         } else {
1717                 /* The if clause above forces this code path when the status
1718                  * failure is a value other than FFER6. Do not call the offline
1719                  * twice. This is the adapter hardware error path.
1720                  */
1721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722                                 "0457 Adapter Hardware Error "
1723                                 "Data: x%x x%x x%x\n",
1724                                 phba->work_hs,
1725                                 phba->work_status[0], phba->work_status[1]);
1726
1727                 event_data = FC_REG_DUMP_EVENT;
1728                 shost = lpfc_shost_from_vport(vport);
1729                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730                                 sizeof(event_data), (char *) &event_data,
1731                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1732
1733                 lpfc_offline_eratt(phba);
1734         }
1735         return;
1736 }
1737
1738 /**
1739  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1740  * @phba: pointer to lpfc hba data structure.
1741  * @mbx_action: flag for mailbox shutdown action.
1742  *
1743  * This routine is invoked to perform an SLI4 port PCI function reset in
1744  * response to port status register polling attention. It waits for port
1745  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1746  * During this process, interrupt vectors are freed and later requested
1747  * for handling possible port resource change.
1748  **/
1749 static int
1750 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1751                             bool en_rn_msg)
1752 {
1753         int rc;
1754         uint32_t intr_mode;
1755
1756         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1757             LPFC_SLI_INTF_IF_TYPE_2) {
1758                 /*
1759                  * On error status condition, driver need to wait for port
1760                  * ready before performing reset.
1761                  */
1762                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1763                 if (rc)
1764                         return rc;
1765         }
1766
1767         /* need reset: attempt for port recovery */
1768         if (en_rn_msg)
1769                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1770                                 "2887 Reset Needed: Attempting Port "
1771                                 "Recovery...\n");
1772         lpfc_offline_prep(phba, mbx_action);
1773         lpfc_offline(phba);
1774         /* release interrupt for possible resource change */
1775         lpfc_sli4_disable_intr(phba);
1776         lpfc_sli_brdrestart(phba);
1777         /* request and enable interrupt */
1778         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1779         if (intr_mode == LPFC_INTR_ERROR) {
1780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1781                                 "3175 Failed to enable interrupt\n");
1782                 return -EIO;
1783         }
1784         phba->intr_mode = intr_mode;
1785         rc = lpfc_online(phba);
1786         if (rc == 0)
1787                 lpfc_unblock_mgmt_io(phba);
1788
1789         return rc;
1790 }
1791
1792 /**
1793  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1794  * @phba: pointer to lpfc hba data structure.
1795  *
1796  * This routine is invoked to handle the SLI4 HBA hardware error attention
1797  * conditions.
1798  **/
1799 static void
1800 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1801 {
1802         struct lpfc_vport *vport = phba->pport;
1803         uint32_t event_data;
1804         struct Scsi_Host *shost;
1805         uint32_t if_type;
1806         struct lpfc_register portstat_reg = {0};
1807         uint32_t reg_err1, reg_err2;
1808         uint32_t uerrlo_reg, uemasklo_reg;
1809         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1810         bool en_rn_msg = true;
1811         struct temp_event temp_event_data;
1812         struct lpfc_register portsmphr_reg;
1813         int rc, i;
1814
1815         /* If the pci channel is offline, ignore possible errors, since
1816          * we cannot communicate with the pci card anyway.
1817          */
1818         if (pci_channel_offline(phba->pcidev))
1819                 return;
1820
1821         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1822         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1823         switch (if_type) {
1824         case LPFC_SLI_INTF_IF_TYPE_0:
1825                 pci_rd_rc1 = lpfc_readl(
1826                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1827                                 &uerrlo_reg);
1828                 pci_rd_rc2 = lpfc_readl(
1829                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1830                                 &uemasklo_reg);
1831                 /* consider PCI bus read error as pci_channel_offline */
1832                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1833                         return;
1834                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1835                         lpfc_sli4_offline_eratt(phba);
1836                         return;
1837                 }
1838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1839                                 "7623 Checking UE recoverable");
1840
1841                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1842                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1843                                        &portsmphr_reg.word0))
1844                                 continue;
1845
1846                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1847                                                    &portsmphr_reg);
1848                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1849                             LPFC_PORT_SEM_UE_RECOVERABLE)
1850                                 break;
1851                         /*Sleep for 1Sec, before checking SEMAPHORE */
1852                         msleep(1000);
1853                 }
1854
1855                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1856                                 "4827 smphr_port_status x%x : Waited %dSec",
1857                                 smphr_port_status, i);
1858
1859                 /* Recoverable UE, reset the HBA device */
1860                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1861                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1862                         for (i = 0; i < 20; i++) {
1863                                 msleep(1000);
1864                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1865                                     &portsmphr_reg.word0) &&
1866                                     (LPFC_POST_STAGE_PORT_READY ==
1867                                      bf_get(lpfc_port_smphr_port_status,
1868                                      &portsmphr_reg))) {
1869                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1870                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1871                                         if (rc == 0)
1872                                                 return;
1873                                         lpfc_printf_log(phba,
1874                                                 KERN_ERR, LOG_INIT,
1875                                                 "4215 Failed to recover UE");
1876                                         break;
1877                                 }
1878                         }
1879                 }
1880                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1881                                 "7624 Firmware not ready: Failing UE recovery,"
1882                                 " waited %dSec", i);
1883                 lpfc_sli4_offline_eratt(phba);
1884                 break;
1885
1886         case LPFC_SLI_INTF_IF_TYPE_2:
1887                 pci_rd_rc1 = lpfc_readl(
1888                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1889                                 &portstat_reg.word0);
1890                 /* consider PCI bus read error as pci_channel_offline */
1891                 if (pci_rd_rc1 == -EIO) {
1892                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1893                                 "3151 PCI bus read access failure: x%x\n",
1894                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1895                         return;
1896                 }
1897                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1898                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1899                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1900                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1901                                 "2889 Port Overtemperature event, "
1902                                 "taking port offline Data: x%x x%x\n",
1903                                 reg_err1, reg_err2);
1904
1905                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1906                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1907                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1908                         temp_event_data.data = 0xFFFFFFFF;
1909
1910                         shost = lpfc_shost_from_vport(phba->pport);
1911                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1912                                                   sizeof(temp_event_data),
1913                                                   (char *)&temp_event_data,
1914                                                   SCSI_NL_VID_TYPE_PCI
1915                                                   | PCI_VENDOR_ID_EMULEX);
1916
1917                         spin_lock_irq(&phba->hbalock);
1918                         phba->over_temp_state = HBA_OVER_TEMP;
1919                         spin_unlock_irq(&phba->hbalock);
1920                         lpfc_sli4_offline_eratt(phba);
1921                         return;
1922                 }
1923                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1924                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1925                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1926                                         "3143 Port Down: Firmware Update "
1927                                         "Detected\n");
1928                         en_rn_msg = false;
1929                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1930                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1931                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1932                                         "3144 Port Down: Debug Dump\n");
1933                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1934                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1935                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1936                                         "3145 Port Down: Provisioning\n");
1937
1938                 /* If resets are disabled then leave the HBA alone and return */
1939                 if (!phba->cfg_enable_hba_reset)
1940                         return;
1941
1942                 /* Check port status register for function reset */
1943                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1944                                 en_rn_msg);
1945                 if (rc == 0) {
1946                         /* don't report event on forced debug dump */
1947                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1948                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1949                                 return;
1950                         else
1951                                 break;
1952                 }
1953                 /* fall through for not able to recover */
1954                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1955                                 "3152 Unrecoverable error, bring the port "
1956                                 "offline\n");
1957                 lpfc_sli4_offline_eratt(phba);
1958                 break;
1959         case LPFC_SLI_INTF_IF_TYPE_1:
1960         default:
1961                 break;
1962         }
1963         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1964                         "3123 Report dump event to upper layer\n");
1965         /* Send an internal error event to mgmt application */
1966         lpfc_board_errevt_to_mgmt(phba);
1967
1968         event_data = FC_REG_DUMP_EVENT;
1969         shost = lpfc_shost_from_vport(vport);
1970         fc_host_post_vendor_event(shost, fc_get_event_number(),
1971                                   sizeof(event_data), (char *) &event_data,
1972                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1973 }
1974
1975 /**
1976  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1977  * @phba: pointer to lpfc HBA data structure.
1978  *
1979  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1980  * routine from the API jump table function pointer from the lpfc_hba struct.
1981  *
1982  * Return codes
1983  *   0 - success.
1984  *   Any other value - error.
1985  **/
1986 void
1987 lpfc_handle_eratt(struct lpfc_hba *phba)
1988 {
1989         (*phba->lpfc_handle_eratt)(phba);
1990 }
1991
1992 /**
1993  * lpfc_handle_latt - The HBA link event handler
1994  * @phba: pointer to lpfc hba data structure.
1995  *
1996  * This routine is invoked from the worker thread to handle a HBA host
1997  * attention link event. SLI3 only.
1998  **/
1999 void
2000 lpfc_handle_latt(struct lpfc_hba *phba)
2001 {
2002         struct lpfc_vport *vport = phba->pport;
2003         struct lpfc_sli   *psli = &phba->sli;
2004         LPFC_MBOXQ_t *pmb;
2005         volatile uint32_t control;
2006         struct lpfc_dmabuf *mp;
2007         int rc = 0;
2008
2009         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2010         if (!pmb) {
2011                 rc = 1;
2012                 goto lpfc_handle_latt_err_exit;
2013         }
2014
2015         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2016         if (!mp) {
2017                 rc = 2;
2018                 goto lpfc_handle_latt_free_pmb;
2019         }
2020
2021         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2022         if (!mp->virt) {
2023                 rc = 3;
2024                 goto lpfc_handle_latt_free_mp;
2025         }
2026
2027         /* Cleanup any outstanding ELS commands */
2028         lpfc_els_flush_all_cmd(phba);
2029
2030         psli->slistat.link_event++;
2031         lpfc_read_topology(phba, pmb, mp);
2032         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2033         pmb->vport = vport;
2034         /* Block ELS IOCBs until we have processed this mbox command */
2035         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2036         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2037         if (rc == MBX_NOT_FINISHED) {
2038                 rc = 4;
2039                 goto lpfc_handle_latt_free_mbuf;
2040         }
2041
2042         /* Clear Link Attention in HA REG */
2043         spin_lock_irq(&phba->hbalock);
2044         writel(HA_LATT, phba->HAregaddr);
2045         readl(phba->HAregaddr); /* flush */
2046         spin_unlock_irq(&phba->hbalock);
2047
2048         return;
2049
2050 lpfc_handle_latt_free_mbuf:
2051         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2052         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2053 lpfc_handle_latt_free_mp:
2054         kfree(mp);
2055 lpfc_handle_latt_free_pmb:
2056         mempool_free(pmb, phba->mbox_mem_pool);
2057 lpfc_handle_latt_err_exit:
2058         /* Enable Link attention interrupts */
2059         spin_lock_irq(&phba->hbalock);
2060         psli->sli_flag |= LPFC_PROCESS_LA;
2061         control = readl(phba->HCregaddr);
2062         control |= HC_LAINT_ENA;
2063         writel(control, phba->HCregaddr);
2064         readl(phba->HCregaddr); /* flush */
2065
2066         /* Clear Link Attention in HA REG */
2067         writel(HA_LATT, phba->HAregaddr);
2068         readl(phba->HAregaddr); /* flush */
2069         spin_unlock_irq(&phba->hbalock);
2070         lpfc_linkdown(phba);
2071         phba->link_state = LPFC_HBA_ERROR;
2072
2073         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2074                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2075
2076         return;
2077 }
2078
2079 /**
2080  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2081  * @phba: pointer to lpfc hba data structure.
2082  * @vpd: pointer to the vital product data.
2083  * @len: length of the vital product data in bytes.
2084  *
2085  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2086  * an array of characters. In this routine, the ModelName, ProgramType, and
2087  * ModelDesc, etc. fields of the phba data structure will be populated.
2088  *
2089  * Return codes
2090  *   0 - pointer to the VPD passed in is NULL
2091  *   1 - success
2092  **/
2093 int
2094 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2095 {
2096         uint8_t lenlo, lenhi;
2097         int Length;
2098         int i, j;
2099         int finished = 0;
2100         int index = 0;
2101
2102         if (!vpd)
2103                 return 0;
2104
2105         /* Vital Product */
2106         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2107                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2108                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2109                         (uint32_t) vpd[3]);
2110         while (!finished && (index < (len - 4))) {
2111                 switch (vpd[index]) {
2112                 case 0x82:
2113                 case 0x91:
2114                         index += 1;
2115                         lenlo = vpd[index];
2116                         index += 1;
2117                         lenhi = vpd[index];
2118                         index += 1;
2119                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2120                         index += i;
2121                         break;
2122                 case 0x90:
2123                         index += 1;
2124                         lenlo = vpd[index];
2125                         index += 1;
2126                         lenhi = vpd[index];
2127                         index += 1;
2128                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2129                         if (Length > len - index)
2130                                 Length = len - index;
2131                         while (Length > 0) {
2132                         /* Look for Serial Number */
2133                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2134                                 index += 2;
2135                                 i = vpd[index];
2136                                 index += 1;
2137                                 j = 0;
2138                                 Length -= (3+i);
2139                                 while(i--) {
2140                                         phba->SerialNumber[j++] = vpd[index++];
2141                                         if (j == 31)
2142                                                 break;
2143                                 }
2144                                 phba->SerialNumber[j] = 0;
2145                                 continue;
2146                         }
2147                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2148                                 phba->vpd_flag |= VPD_MODEL_DESC;
2149                                 index += 2;
2150                                 i = vpd[index];
2151                                 index += 1;
2152                                 j = 0;
2153                                 Length -= (3+i);
2154                                 while(i--) {
2155                                         phba->ModelDesc[j++] = vpd[index++];
2156                                         if (j == 255)
2157                                                 break;
2158                                 }
2159                                 phba->ModelDesc[j] = 0;
2160                                 continue;
2161                         }
2162                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2163                                 phba->vpd_flag |= VPD_MODEL_NAME;
2164                                 index += 2;
2165                                 i = vpd[index];
2166                                 index += 1;
2167                                 j = 0;
2168                                 Length -= (3+i);
2169                                 while(i--) {
2170                                         phba->ModelName[j++] = vpd[index++];
2171                                         if (j == 79)
2172                                                 break;
2173                                 }
2174                                 phba->ModelName[j] = 0;
2175                                 continue;
2176                         }
2177                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2178                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2179                                 index += 2;
2180                                 i = vpd[index];
2181                                 index += 1;
2182                                 j = 0;
2183                                 Length -= (3+i);
2184                                 while(i--) {
2185                                         phba->ProgramType[j++] = vpd[index++];
2186                                         if (j == 255)
2187                                                 break;
2188                                 }
2189                                 phba->ProgramType[j] = 0;
2190                                 continue;
2191                         }
2192                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2193                                 phba->vpd_flag |= VPD_PORT;
2194                                 index += 2;
2195                                 i = vpd[index];
2196                                 index += 1;
2197                                 j = 0;
2198                                 Length -= (3+i);
2199                                 while(i--) {
2200                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2201                                             (phba->sli4_hba.pport_name_sta ==
2202                                              LPFC_SLI4_PPNAME_GET)) {
2203                                                 j++;
2204                                                 index++;
2205                                         } else
2206                                                 phba->Port[j++] = vpd[index++];
2207                                         if (j == 19)
2208                                                 break;
2209                                 }
2210                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2211                                     (phba->sli4_hba.pport_name_sta ==
2212                                      LPFC_SLI4_PPNAME_NON))
2213                                         phba->Port[j] = 0;
2214                                 continue;
2215                         }
2216                         else {
2217                                 index += 2;
2218                                 i = vpd[index];
2219                                 index += 1;
2220                                 index += i;
2221                                 Length -= (3 + i);
2222                         }
2223                 }
2224                 finished = 0;
2225                 break;
2226                 case 0x78:
2227                         finished = 1;
2228                         break;
2229                 default:
2230                         index ++;
2231                         break;
2232                 }
2233         }
2234
2235         return(1);
2236 }
2237
2238 /**
2239  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2240  * @phba: pointer to lpfc hba data structure.
2241  * @mdp: pointer to the data structure to hold the derived model name.
2242  * @descp: pointer to the data structure to hold the derived description.
2243  *
2244  * This routine retrieves HBA's description based on its registered PCI device
2245  * ID. The @descp passed into this function points to an array of 256 chars. It
2246  * shall be returned with the model name, maximum speed, and the host bus type.
2247  * The @mdp passed into this function points to an array of 80 chars. When the
2248  * function returns, the @mdp will be filled with the model name.
2249  **/
2250 static void
2251 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2252 {
2253         lpfc_vpd_t *vp;
2254         uint16_t dev_id = phba->pcidev->device;
2255         int max_speed;
2256         int GE = 0;
2257         int oneConnect = 0; /* default is not a oneConnect */
2258         struct {
2259                 char *name;
2260                 char *bus;
2261                 char *function;
2262         } m = {"<Unknown>", "", ""};
2263
2264         if (mdp && mdp[0] != '\0'
2265                 && descp && descp[0] != '\0')
2266                 return;
2267
2268         if (phba->lmt & LMT_32Gb)
2269                 max_speed = 32;
2270         else if (phba->lmt & LMT_16Gb)
2271                 max_speed = 16;
2272         else if (phba->lmt & LMT_10Gb)
2273                 max_speed = 10;
2274         else if (phba->lmt & LMT_8Gb)
2275                 max_speed = 8;
2276         else if (phba->lmt & LMT_4Gb)
2277                 max_speed = 4;
2278         else if (phba->lmt & LMT_2Gb)
2279                 max_speed = 2;
2280         else if (phba->lmt & LMT_1Gb)
2281                 max_speed = 1;
2282         else
2283                 max_speed = 0;
2284
2285         vp = &phba->vpd;
2286
2287         switch (dev_id) {
2288         case PCI_DEVICE_ID_FIREFLY:
2289                 m = (typeof(m)){"LP6000", "PCI",
2290                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2291                 break;
2292         case PCI_DEVICE_ID_SUPERFLY:
2293                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2294                         m = (typeof(m)){"LP7000", "PCI", ""};
2295                 else
2296                         m = (typeof(m)){"LP7000E", "PCI", ""};
2297                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2298                 break;
2299         case PCI_DEVICE_ID_DRAGONFLY:
2300                 m = (typeof(m)){"LP8000", "PCI",
2301                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2302                 break;
2303         case PCI_DEVICE_ID_CENTAUR:
2304                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2305                         m = (typeof(m)){"LP9002", "PCI", ""};
2306                 else
2307                         m = (typeof(m)){"LP9000", "PCI", ""};
2308                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2309                 break;
2310         case PCI_DEVICE_ID_RFLY:
2311                 m = (typeof(m)){"LP952", "PCI",
2312                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2313                 break;
2314         case PCI_DEVICE_ID_PEGASUS:
2315                 m = (typeof(m)){"LP9802", "PCI-X",
2316                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2317                 break;
2318         case PCI_DEVICE_ID_THOR:
2319                 m = (typeof(m)){"LP10000", "PCI-X",
2320                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2321                 break;
2322         case PCI_DEVICE_ID_VIPER:
2323                 m = (typeof(m)){"LPX1000",  "PCI-X",
2324                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2325                 break;
2326         case PCI_DEVICE_ID_PFLY:
2327                 m = (typeof(m)){"LP982", "PCI-X",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_TFLY:
2331                 m = (typeof(m)){"LP1050", "PCI-X",
2332                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2333                 break;
2334         case PCI_DEVICE_ID_HELIOS:
2335                 m = (typeof(m)){"LP11000", "PCI-X2",
2336                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2337                 break;
2338         case PCI_DEVICE_ID_HELIOS_SCSP:
2339                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2340                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2341                 break;
2342         case PCI_DEVICE_ID_HELIOS_DCSP:
2343                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2344                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2345                 break;
2346         case PCI_DEVICE_ID_NEPTUNE:
2347                 m = (typeof(m)){"LPe1000", "PCIe",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2351                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2355                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_BMID:
2359                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_BSMB:
2362                 m = (typeof(m)){"LP111", "PCI-X2",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_ZEPHYR:
2366                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2367                 break;
2368         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2369                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2370                 break;
2371         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2372                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2373                 GE = 1;
2374                 break;
2375         case PCI_DEVICE_ID_ZMID:
2376                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_ZSMB:
2379                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2380                 break;
2381         case PCI_DEVICE_ID_LP101:
2382                 m = (typeof(m)){"LP101", "PCI-X",
2383                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_LP10000S:
2386                 m = (typeof(m)){"LP10000-S", "PCI",
2387                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2388                 break;
2389         case PCI_DEVICE_ID_LP11000S:
2390                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2391                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_LPE11000S:
2394                 m = (typeof(m)){"LPe11000-S", "PCIe",
2395                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_SAT:
2398                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_SAT_MID:
2401                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2402                 break;
2403         case PCI_DEVICE_ID_SAT_SMB:
2404                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2405                 break;
2406         case PCI_DEVICE_ID_SAT_DCSP:
2407                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2408                 break;
2409         case PCI_DEVICE_ID_SAT_SCSP:
2410                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_SAT_S:
2413                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2414                 break;
2415         case PCI_DEVICE_ID_HORNET:
2416                 m = (typeof(m)){"LP21000", "PCIe",
2417                                 "Obsolete, Unsupported FCoE Adapter"};
2418                 GE = 1;
2419                 break;
2420         case PCI_DEVICE_ID_PROTEUS_VF:
2421                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2422                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_PROTEUS_PF:
2425                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2426                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2427                 break;
2428         case PCI_DEVICE_ID_PROTEUS_S:
2429                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2430                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2431                 break;
2432         case PCI_DEVICE_ID_TIGERSHARK:
2433                 oneConnect = 1;
2434                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2435                 break;
2436         case PCI_DEVICE_ID_TOMCAT:
2437                 oneConnect = 1;
2438                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2439                 break;
2440         case PCI_DEVICE_ID_FALCON:
2441                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2442                                 "EmulexSecure Fibre"};
2443                 break;
2444         case PCI_DEVICE_ID_BALIUS:
2445                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2446                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_LANCER_FC:
2449                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_LANCER_FC_VF:
2452                 m = (typeof(m)){"LPe16000", "PCIe",
2453                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_LANCER_FCOE:
2456                 oneConnect = 1;
2457                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2458                 break;
2459         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2460                 oneConnect = 1;
2461                 m = (typeof(m)){"OCe15100", "PCIe",
2462                                 "Obsolete, Unsupported FCoE"};
2463                 break;
2464         case PCI_DEVICE_ID_LANCER_G6_FC:
2465                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2466                 break;
2467         case PCI_DEVICE_ID_SKYHAWK:
2468         case PCI_DEVICE_ID_SKYHAWK_VF:
2469                 oneConnect = 1;
2470                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2471                 break;
2472         default:
2473                 m = (typeof(m)){"Unknown", "", ""};
2474                 break;
2475         }
2476
2477         if (mdp && mdp[0] == '\0')
2478                 snprintf(mdp, 79,"%s", m.name);
2479         /*
2480          * oneConnect hba requires special processing, they are all initiators
2481          * and we put the port number on the end
2482          */
2483         if (descp && descp[0] == '\0') {
2484                 if (oneConnect)
2485                         snprintf(descp, 255,
2486                                 "Emulex OneConnect %s, %s Initiator %s",
2487                                 m.name, m.function,
2488                                 phba->Port);
2489                 else if (max_speed == 0)
2490                         snprintf(descp, 255,
2491                                 "Emulex %s %s %s",
2492                                 m.name, m.bus, m.function);
2493                 else
2494                         snprintf(descp, 255,
2495                                 "Emulex %s %d%s %s %s",
2496                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2497                                 m.bus, m.function);
2498         }
2499 }
2500
2501 /**
2502  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2503  * @phba: pointer to lpfc hba data structure.
2504  * @pring: pointer to a IOCB ring.
2505  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2506  *
2507  * This routine posts a given number of IOCBs with the associated DMA buffer
2508  * descriptors specified by the cnt argument to the given IOCB ring.
2509  *
2510  * Return codes
2511  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2512  **/
2513 int
2514 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2515 {
2516         IOCB_t *icmd;
2517         struct lpfc_iocbq *iocb;
2518         struct lpfc_dmabuf *mp1, *mp2;
2519
2520         cnt += pring->missbufcnt;
2521
2522         /* While there are buffers to post */
2523         while (cnt > 0) {
2524                 /* Allocate buffer for  command iocb */
2525                 iocb = lpfc_sli_get_iocbq(phba);
2526                 if (iocb == NULL) {
2527                         pring->missbufcnt = cnt;
2528                         return cnt;
2529                 }
2530                 icmd = &iocb->iocb;
2531
2532                 /* 2 buffers can be posted per command */
2533                 /* Allocate buffer to post */
2534                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2535                 if (mp1)
2536                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2537                 if (!mp1 || !mp1->virt) {
2538                         kfree(mp1);
2539                         lpfc_sli_release_iocbq(phba, iocb);
2540                         pring->missbufcnt = cnt;
2541                         return cnt;
2542                 }
2543
2544                 INIT_LIST_HEAD(&mp1->list);
2545                 /* Allocate buffer to post */
2546                 if (cnt > 1) {
2547                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2548                         if (mp2)
2549                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2550                                                             &mp2->phys);
2551                         if (!mp2 || !mp2->virt) {
2552                                 kfree(mp2);
2553                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2554                                 kfree(mp1);
2555                                 lpfc_sli_release_iocbq(phba, iocb);
2556                                 pring->missbufcnt = cnt;
2557                                 return cnt;
2558                         }
2559
2560                         INIT_LIST_HEAD(&mp2->list);
2561                 } else {
2562                         mp2 = NULL;
2563                 }
2564
2565                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2566                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2567                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2568                 icmd->ulpBdeCount = 1;
2569                 cnt--;
2570                 if (mp2) {
2571                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2572                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2573                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2574                         cnt--;
2575                         icmd->ulpBdeCount = 2;
2576                 }
2577
2578                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2579                 icmd->ulpLe = 1;
2580
2581                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2582                     IOCB_ERROR) {
2583                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584                         kfree(mp1);
2585                         cnt++;
2586                         if (mp2) {
2587                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2588                                 kfree(mp2);
2589                                 cnt++;
2590                         }
2591                         lpfc_sli_release_iocbq(phba, iocb);
2592                         pring->missbufcnt = cnt;
2593                         return cnt;
2594                 }
2595                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2596                 if (mp2)
2597                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2598         }
2599         pring->missbufcnt = 0;
2600         return 0;
2601 }
2602
2603 /**
2604  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2605  * @phba: pointer to lpfc hba data structure.
2606  *
2607  * This routine posts initial receive IOCB buffers to the ELS ring. The
2608  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2609  * set to 64 IOCBs. SLI3 only.
2610  *
2611  * Return codes
2612  *   0 - success (currently always success)
2613  **/
2614 static int
2615 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2616 {
2617         struct lpfc_sli *psli = &phba->sli;
2618
2619         /* Ring 0, ELS / CT buffers */
2620         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2621         /* Ring 2 - FCP no buffers needed */
2622
2623         return 0;
2624 }
2625
2626 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2627
2628 /**
2629  * lpfc_sha_init - Set up initial array of hash table entries
2630  * @HashResultPointer: pointer to an array as hash table.
2631  *
2632  * This routine sets up the initial values to the array of hash table entries
2633  * for the LC HBAs.
2634  **/
2635 static void
2636 lpfc_sha_init(uint32_t * HashResultPointer)
2637 {
2638         HashResultPointer[0] = 0x67452301;
2639         HashResultPointer[1] = 0xEFCDAB89;
2640         HashResultPointer[2] = 0x98BADCFE;
2641         HashResultPointer[3] = 0x10325476;
2642         HashResultPointer[4] = 0xC3D2E1F0;
2643 }
2644
2645 /**
2646  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2647  * @HashResultPointer: pointer to an initial/result hash table.
2648  * @HashWorkingPointer: pointer to an working hash table.
2649  *
2650  * This routine iterates an initial hash table pointed by @HashResultPointer
2651  * with the values from the working hash table pointeed by @HashWorkingPointer.
2652  * The results are putting back to the initial hash table, returned through
2653  * the @HashResultPointer as the result hash table.
2654  **/
2655 static void
2656 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2657 {
2658         int t;
2659         uint32_t TEMP;
2660         uint32_t A, B, C, D, E;
2661         t = 16;
2662         do {
2663                 HashWorkingPointer[t] =
2664                     S(1,
2665                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2666                                                                      8] ^
2667                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2668         } while (++t <= 79);
2669         t = 0;
2670         A = HashResultPointer[0];
2671         B = HashResultPointer[1];
2672         C = HashResultPointer[2];
2673         D = HashResultPointer[3];
2674         E = HashResultPointer[4];
2675
2676         do {
2677                 if (t < 20) {
2678                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2679                 } else if (t < 40) {
2680                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2681                 } else if (t < 60) {
2682                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2683                 } else {
2684                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2685                 }
2686                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2687                 E = D;
2688                 D = C;
2689                 C = S(30, B);
2690                 B = A;
2691                 A = TEMP;
2692         } while (++t <= 79);
2693
2694         HashResultPointer[0] += A;
2695         HashResultPointer[1] += B;
2696         HashResultPointer[2] += C;
2697         HashResultPointer[3] += D;
2698         HashResultPointer[4] += E;
2699
2700 }
2701
2702 /**
2703  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2704  * @RandomChallenge: pointer to the entry of host challenge random number array.
2705  * @HashWorking: pointer to the entry of the working hash array.
2706  *
2707  * This routine calculates the working hash array referred by @HashWorking
2708  * from the challenge random numbers associated with the host, referred by
2709  * @RandomChallenge. The result is put into the entry of the working hash
2710  * array and returned by reference through @HashWorking.
2711  **/
2712 static void
2713 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2714 {
2715         *HashWorking = (*RandomChallenge ^ *HashWorking);
2716 }
2717
2718 /**
2719  * lpfc_hba_init - Perform special handling for LC HBA initialization
2720  * @phba: pointer to lpfc hba data structure.
2721  * @hbainit: pointer to an array of unsigned 32-bit integers.
2722  *
2723  * This routine performs the special handling for LC HBA initialization.
2724  **/
2725 void
2726 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2727 {
2728         int t;
2729         uint32_t *HashWorking;
2730         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2731
2732         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2733         if (!HashWorking)
2734                 return;
2735
2736         HashWorking[0] = HashWorking[78] = *pwwnn++;
2737         HashWorking[1] = HashWorking[79] = *pwwnn;
2738
2739         for (t = 0; t < 7; t++)
2740                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2741
2742         lpfc_sha_init(hbainit);
2743         lpfc_sha_iterate(hbainit, HashWorking);
2744         kfree(HashWorking);
2745 }
2746
2747 /**
2748  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2749  * @vport: pointer to a virtual N_Port data structure.
2750  *
2751  * This routine performs the necessary cleanups before deleting the @vport.
2752  * It invokes the discovery state machine to perform necessary state
2753  * transitions and to release the ndlps associated with the @vport. Note,
2754  * the physical port is treated as @vport 0.
2755  **/
2756 void
2757 lpfc_cleanup(struct lpfc_vport *vport)
2758 {
2759         struct lpfc_hba   *phba = vport->phba;
2760         struct lpfc_nodelist *ndlp, *next_ndlp;
2761         int i = 0;
2762
2763         if (phba->link_state > LPFC_LINK_DOWN)
2764                 lpfc_port_link_failure(vport);
2765
2766         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2767                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2768                         ndlp = lpfc_enable_node(vport, ndlp,
2769                                                 NLP_STE_UNUSED_NODE);
2770                         if (!ndlp)
2771                                 continue;
2772                         spin_lock_irq(&phba->ndlp_lock);
2773                         NLP_SET_FREE_REQ(ndlp);
2774                         spin_unlock_irq(&phba->ndlp_lock);
2775                         /* Trigger the release of the ndlp memory */
2776                         lpfc_nlp_put(ndlp);
2777                         continue;
2778                 }
2779                 spin_lock_irq(&phba->ndlp_lock);
2780                 if (NLP_CHK_FREE_REQ(ndlp)) {
2781                         /* The ndlp should not be in memory free mode already */
2782                         spin_unlock_irq(&phba->ndlp_lock);
2783                         continue;
2784                 } else
2785                         /* Indicate request for freeing ndlp memory */
2786                         NLP_SET_FREE_REQ(ndlp);
2787                 spin_unlock_irq(&phba->ndlp_lock);
2788
2789                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2790                     ndlp->nlp_DID == Fabric_DID) {
2791                         /* Just free up ndlp with Fabric_DID for vports */
2792                         lpfc_nlp_put(ndlp);
2793                         continue;
2794                 }
2795
2796                 /* take care of nodes in unused state before the state
2797                  * machine taking action.
2798                  */
2799                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2800                         lpfc_nlp_put(ndlp);
2801                         continue;
2802                 }
2803
2804                 if (ndlp->nlp_type & NLP_FABRIC)
2805                         lpfc_disc_state_machine(vport, ndlp, NULL,
2806                                         NLP_EVT_DEVICE_RECOVERY);
2807
2808                 lpfc_disc_state_machine(vport, ndlp, NULL,
2809                                              NLP_EVT_DEVICE_RM);
2810         }
2811
2812         /* At this point, ALL ndlp's should be gone
2813          * because of the previous NLP_EVT_DEVICE_RM.
2814          * Lets wait for this to happen, if needed.
2815          */
2816         while (!list_empty(&vport->fc_nodes)) {
2817                 if (i++ > 3000) {
2818                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2819                                 "0233 Nodelist not empty\n");
2820                         list_for_each_entry_safe(ndlp, next_ndlp,
2821                                                 &vport->fc_nodes, nlp_listp) {
2822                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2823                                                 LOG_NODE,
2824                                                 "0282 did:x%x ndlp:x%p "
2825                                                 "usgmap:x%x refcnt:%d\n",
2826                                                 ndlp->nlp_DID, (void *)ndlp,
2827                                                 ndlp->nlp_usg_map,
2828                                                 kref_read(&ndlp->kref));
2829                         }
2830                         break;
2831                 }
2832
2833                 /* Wait for any activity on ndlps to settle */
2834                 msleep(10);
2835         }
2836         lpfc_cleanup_vports_rrqs(vport, NULL);
2837 }
2838
2839 /**
2840  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2841  * @vport: pointer to a virtual N_Port data structure.
2842  *
2843  * This routine stops all the timers associated with a @vport. This function
2844  * is invoked before disabling or deleting a @vport. Note that the physical
2845  * port is treated as @vport 0.
2846  **/
2847 void
2848 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2849 {
2850         del_timer_sync(&vport->els_tmofunc);
2851         del_timer_sync(&vport->delayed_disc_tmo);
2852         lpfc_can_disctmo(vport);
2853         return;
2854 }
2855
2856 /**
2857  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2858  * @phba: pointer to lpfc hba data structure.
2859  *
2860  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2861  * caller of this routine should already hold the host lock.
2862  **/
2863 void
2864 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2865 {
2866         /* Clear pending FCF rediscovery wait flag */
2867         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2868
2869         /* Now, try to stop the timer */
2870         del_timer(&phba->fcf.redisc_wait);
2871 }
2872
2873 /**
2874  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2875  * @phba: pointer to lpfc hba data structure.
2876  *
2877  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2878  * checks whether the FCF rediscovery wait timer is pending with the host
2879  * lock held before proceeding with disabling the timer and clearing the
2880  * wait timer pendig flag.
2881  **/
2882 void
2883 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2884 {
2885         spin_lock_irq(&phba->hbalock);
2886         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2887                 /* FCF rediscovery timer already fired or stopped */
2888                 spin_unlock_irq(&phba->hbalock);
2889                 return;
2890         }
2891         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2892         /* Clear failover in progress flags */
2893         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2894         spin_unlock_irq(&phba->hbalock);
2895 }
2896
2897 /**
2898  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2899  * @phba: pointer to lpfc hba data structure.
2900  *
2901  * This routine stops all the timers associated with a HBA. This function is
2902  * invoked before either putting a HBA offline or unloading the driver.
2903  **/
2904 void
2905 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2906 {
2907         lpfc_stop_vport_timers(phba->pport);
2908         del_timer_sync(&phba->sli.mbox_tmo);
2909         del_timer_sync(&phba->fabric_block_timer);
2910         del_timer_sync(&phba->eratt_poll);
2911         del_timer_sync(&phba->hb_tmofunc);
2912         if (phba->sli_rev == LPFC_SLI_REV4) {
2913                 del_timer_sync(&phba->rrq_tmr);
2914                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2915         }
2916         phba->hb_outstanding = 0;
2917
2918         switch (phba->pci_dev_grp) {
2919         case LPFC_PCI_DEV_LP:
2920                 /* Stop any LightPulse device specific driver timers */
2921                 del_timer_sync(&phba->fcp_poll_timer);
2922                 break;
2923         case LPFC_PCI_DEV_OC:
2924                 /* Stop any OneConnect device sepcific driver timers */
2925                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2926                 break;
2927         default:
2928                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2929                                 "0297 Invalid device group (x%x)\n",
2930                                 phba->pci_dev_grp);
2931                 break;
2932         }
2933         return;
2934 }
2935
2936 /**
2937  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2938  * @phba: pointer to lpfc hba data structure.
2939  *
2940  * This routine marks a HBA's management interface as blocked. Once the HBA's
2941  * management interface is marked as blocked, all the user space access to
2942  * the HBA, whether they are from sysfs interface or libdfc interface will
2943  * all be blocked. The HBA is set to block the management interface when the
2944  * driver prepares the HBA interface for online or offline.
2945  **/
2946 static void
2947 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2948 {
2949         unsigned long iflag;
2950         uint8_t actcmd = MBX_HEARTBEAT;
2951         unsigned long timeout;
2952
2953         spin_lock_irqsave(&phba->hbalock, iflag);
2954         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2955         spin_unlock_irqrestore(&phba->hbalock, iflag);
2956         if (mbx_action == LPFC_MBX_NO_WAIT)
2957                 return;
2958         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2959         spin_lock_irqsave(&phba->hbalock, iflag);
2960         if (phba->sli.mbox_active) {
2961                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2962                 /* Determine how long we might wait for the active mailbox
2963                  * command to be gracefully completed by firmware.
2964                  */
2965                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2966                                 phba->sli.mbox_active) * 1000) + jiffies;
2967         }
2968         spin_unlock_irqrestore(&phba->hbalock, iflag);
2969
2970         /* Wait for the outstnading mailbox command to complete */
2971         while (phba->sli.mbox_active) {
2972                 /* Check active mailbox complete status every 2ms */
2973                 msleep(2);
2974                 if (time_after(jiffies, timeout)) {
2975                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2976                                 "2813 Mgmt IO is Blocked %x "
2977                                 "- mbox cmd %x still active\n",
2978                                 phba->sli.sli_flag, actcmd);
2979                         break;
2980                 }
2981         }
2982 }
2983
2984 /**
2985  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2986  * @phba: pointer to lpfc hba data structure.
2987  *
2988  * Allocate RPIs for all active remote nodes. This is needed whenever
2989  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2990  * is to fixup the temporary rpi assignments.
2991  **/
2992 void
2993 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2994 {
2995         struct lpfc_nodelist  *ndlp, *next_ndlp;
2996         struct lpfc_vport **vports;
2997         int i, rpi;
2998         unsigned long flags;
2999
3000         if (phba->sli_rev != LPFC_SLI_REV4)
3001                 return;
3002
3003         vports = lpfc_create_vport_work_array(phba);
3004         if (vports == NULL)
3005                 return;
3006
3007         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3008                 if (vports[i]->load_flag & FC_UNLOADING)
3009                         continue;
3010
3011                 list_for_each_entry_safe(ndlp, next_ndlp,
3012                                          &vports[i]->fc_nodes,
3013                                          nlp_listp) {
3014                         if (!NLP_CHK_NODE_ACT(ndlp))
3015                                 continue;
3016                         rpi = lpfc_sli4_alloc_rpi(phba);
3017                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3018                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3019                                 NLP_CLR_NODE_ACT(ndlp);
3020                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3021                                 continue;
3022                         }
3023                         ndlp->nlp_rpi = rpi;
3024                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3025                                          "0009 rpi:%x DID:%x "
3026                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3027                                          ndlp->nlp_DID, ndlp->nlp_flag,
3028                                          ndlp->nlp_usg_map, ndlp);
3029                 }
3030         }
3031         lpfc_destroy_vport_work_array(phba, vports);
3032 }
3033
3034 /**
3035  * lpfc_online - Initialize and bring a HBA online
3036  * @phba: pointer to lpfc hba data structure.
3037  *
3038  * This routine initializes the HBA and brings a HBA online. During this
3039  * process, the management interface is blocked to prevent user space access
3040  * to the HBA interfering with the driver initialization.
3041  *
3042  * Return codes
3043  *   0 - successful
3044  *   1 - failed
3045  **/
3046 int
3047 lpfc_online(struct lpfc_hba *phba)
3048 {
3049         struct lpfc_vport *vport;
3050         struct lpfc_vport **vports;
3051         int i;
3052         bool vpis_cleared = false;
3053
3054         if (!phba)
3055                 return 0;
3056         vport = phba->pport;
3057
3058         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3059                 return 0;
3060
3061         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3062                         "0458 Bring Adapter online\n");
3063
3064         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3065
3066         if (phba->sli_rev == LPFC_SLI_REV4) {
3067                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3068                         lpfc_unblock_mgmt_io(phba);
3069                         return 1;
3070                 }
3071                 spin_lock_irq(&phba->hbalock);
3072                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3073                         vpis_cleared = true;
3074                 spin_unlock_irq(&phba->hbalock);
3075         } else {
3076                 lpfc_sli_queue_init(phba);
3077                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3078                         lpfc_unblock_mgmt_io(phba);
3079                         return 1;
3080                 }
3081         }
3082
3083         vports = lpfc_create_vport_work_array(phba);
3084         if (vports != NULL) {
3085                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3086                         struct Scsi_Host *shost;
3087                         shost = lpfc_shost_from_vport(vports[i]);
3088                         spin_lock_irq(shost->host_lock);
3089                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3090                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3091                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3092                         if (phba->sli_rev == LPFC_SLI_REV4) {
3093                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3094                                 if ((vpis_cleared) &&
3095                                     (vports[i]->port_type !=
3096                                         LPFC_PHYSICAL_PORT))
3097                                         vports[i]->vpi = 0;
3098                         }
3099                         spin_unlock_irq(shost->host_lock);
3100                 }
3101         }
3102         lpfc_destroy_vport_work_array(phba, vports);
3103
3104         lpfc_unblock_mgmt_io(phba);
3105         return 0;
3106 }
3107
3108 /**
3109  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3110  * @phba: pointer to lpfc hba data structure.
3111  *
3112  * This routine marks a HBA's management interface as not blocked. Once the
3113  * HBA's management interface is marked as not blocked, all the user space
3114  * access to the HBA, whether they are from sysfs interface or libdfc
3115  * interface will be allowed. The HBA is set to block the management interface
3116  * when the driver prepares the HBA interface for online or offline and then
3117  * set to unblock the management interface afterwards.
3118  **/
3119 void
3120 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3121 {
3122         unsigned long iflag;
3123
3124         spin_lock_irqsave(&phba->hbalock, iflag);
3125         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3126         spin_unlock_irqrestore(&phba->hbalock, iflag);
3127 }
3128
3129 /**
3130  * lpfc_offline_prep - Prepare a HBA to be brought offline
3131  * @phba: pointer to lpfc hba data structure.
3132  *
3133  * This routine is invoked to prepare a HBA to be brought offline. It performs
3134  * unregistration login to all the nodes on all vports and flushes the mailbox
3135  * queue to make it ready to be brought offline.
3136  **/
3137 void
3138 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3139 {
3140         struct lpfc_vport *vport = phba->pport;
3141         struct lpfc_nodelist  *ndlp, *next_ndlp;
3142         struct lpfc_vport **vports;
3143         struct Scsi_Host *shost;
3144         int i;
3145
3146         if (vport->fc_flag & FC_OFFLINE_MODE)
3147                 return;
3148
3149         lpfc_block_mgmt_io(phba, mbx_action);
3150
3151         lpfc_linkdown(phba);
3152
3153         /* Issue an unreg_login to all nodes on all vports */
3154         vports = lpfc_create_vport_work_array(phba);
3155         if (vports != NULL) {
3156                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3157                         if (vports[i]->load_flag & FC_UNLOADING)
3158                                 continue;
3159                         shost = lpfc_shost_from_vport(vports[i]);
3160                         spin_lock_irq(shost->host_lock);
3161                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3162                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3163                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3164                         spin_unlock_irq(shost->host_lock);
3165
3166                         shost = lpfc_shost_from_vport(vports[i]);
3167                         list_for_each_entry_safe(ndlp, next_ndlp,
3168                                                  &vports[i]->fc_nodes,
3169                                                  nlp_listp) {
3170                                 if (!NLP_CHK_NODE_ACT(ndlp))
3171                                         continue;
3172                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3173                                         continue;
3174                                 if (ndlp->nlp_type & NLP_FABRIC) {
3175                                         lpfc_disc_state_machine(vports[i], ndlp,
3176                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3177                                         lpfc_disc_state_machine(vports[i], ndlp,
3178                                                 NULL, NLP_EVT_DEVICE_RM);
3179                                 }
3180                                 spin_lock_irq(shost->host_lock);
3181                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3182                                 spin_unlock_irq(shost->host_lock);
3183                                 /*
3184                                  * Whenever an SLI4 port goes offline, free the
3185                                  * RPI. Get a new RPI when the adapter port
3186                                  * comes back online.
3187                                  */
3188                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3189                                         lpfc_printf_vlog(ndlp->vport,
3190                                                          KERN_INFO, LOG_NODE,
3191                                                          "0011 lpfc_offline: "
3192                                                          "ndlp:x%p did %x "
3193                                                          "usgmap:x%x rpi:%x\n",
3194                                                          ndlp, ndlp->nlp_DID,
3195                                                          ndlp->nlp_usg_map,
3196                                                          ndlp->nlp_rpi);
3197
3198                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3199                                 }
3200                                 lpfc_unreg_rpi(vports[i], ndlp);
3201                         }
3202                 }
3203         }
3204         lpfc_destroy_vport_work_array(phba, vports);
3205
3206         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3207 }
3208
3209 /**
3210  * lpfc_offline - Bring a HBA offline
3211  * @phba: pointer to lpfc hba data structure.
3212  *
3213  * This routine actually brings a HBA offline. It stops all the timers
3214  * associated with the HBA, brings down the SLI layer, and eventually
3215  * marks the HBA as in offline state for the upper layer protocol.
3216  **/
3217 void
3218 lpfc_offline(struct lpfc_hba *phba)
3219 {
3220         struct Scsi_Host  *shost;
3221         struct lpfc_vport **vports;
3222         int i;
3223
3224         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3225                 return;
3226
3227         /* stop port and all timers associated with this hba */
3228         lpfc_stop_port(phba);
3229         vports = lpfc_create_vport_work_array(phba);
3230         if (vports != NULL)
3231                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3232                         lpfc_stop_vport_timers(vports[i]);
3233         lpfc_destroy_vport_work_array(phba, vports);
3234         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3235                         "0460 Bring Adapter offline\n");
3236         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3237            now.  */
3238         lpfc_sli_hba_down(phba);
3239         spin_lock_irq(&phba->hbalock);
3240         phba->work_ha = 0;
3241         spin_unlock_irq(&phba->hbalock);
3242         vports = lpfc_create_vport_work_array(phba);
3243         if (vports != NULL)
3244                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3245                         shost = lpfc_shost_from_vport(vports[i]);
3246                         spin_lock_irq(shost->host_lock);
3247                         vports[i]->work_port_events = 0;
3248                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3249                         spin_unlock_irq(shost->host_lock);
3250                 }
3251         lpfc_destroy_vport_work_array(phba, vports);
3252 }
3253
3254 /**
3255  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3256  * @phba: pointer to lpfc hba data structure.
3257  *
3258  * This routine is to free all the SCSI buffers and IOCBs from the driver
3259  * list back to kernel. It is called from lpfc_pci_remove_one to free
3260  * the internal resources before the device is removed from the system.
3261  **/
3262 static void
3263 lpfc_scsi_free(struct lpfc_hba *phba)
3264 {
3265         struct lpfc_scsi_buf *sb, *sb_next;
3266
3267         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3268                 return;
3269
3270         spin_lock_irq(&phba->hbalock);
3271
3272         /* Release all the lpfc_scsi_bufs maintained by this host. */
3273
3274         spin_lock(&phba->scsi_buf_list_put_lock);
3275         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3276                                  list) {
3277                 list_del(&sb->list);
3278                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3279                               sb->dma_handle);
3280                 kfree(sb);
3281                 phba->total_scsi_bufs--;
3282         }
3283         spin_unlock(&phba->scsi_buf_list_put_lock);
3284
3285         spin_lock(&phba->scsi_buf_list_get_lock);
3286         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3287                                  list) {
3288                 list_del(&sb->list);
3289                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3290                               sb->dma_handle);
3291                 kfree(sb);
3292                 phba->total_scsi_bufs--;
3293         }
3294         spin_unlock(&phba->scsi_buf_list_get_lock);
3295         spin_unlock_irq(&phba->hbalock);
3296 }
3297 /**
3298  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3299  * @phba: pointer to lpfc hba data structure.
3300  *
3301  * This routine is to free all the NVME buffers and IOCBs from the driver
3302  * list back to kernel. It is called from lpfc_pci_remove_one to free
3303  * the internal resources before the device is removed from the system.
3304  **/
3305 static void
3306 lpfc_nvme_free(struct lpfc_hba *phba)
3307 {
3308         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3309
3310         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3311                 return;
3312
3313         spin_lock_irq(&phba->hbalock);
3314
3315         /* Release all the lpfc_nvme_bufs maintained by this host. */
3316         spin_lock(&phba->nvme_buf_list_put_lock);
3317         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3318                                  &phba->lpfc_nvme_buf_list_put, list) {
3319                 list_del(&lpfc_ncmd->list);
3320                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3321                               lpfc_ncmd->dma_handle);
3322                 kfree(lpfc_ncmd);
3323                 phba->total_nvme_bufs--;
3324         }
3325         spin_unlock(&phba->nvme_buf_list_put_lock);
3326
3327         spin_lock(&phba->nvme_buf_list_get_lock);
3328         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3329                                  &phba->lpfc_nvme_buf_list_get, list) {
3330                 list_del(&lpfc_ncmd->list);
3331                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3332                               lpfc_ncmd->dma_handle);
3333                 kfree(lpfc_ncmd);
3334                 phba->total_nvme_bufs--;
3335         }
3336         spin_unlock(&phba->nvme_buf_list_get_lock);
3337         spin_unlock_irq(&phba->hbalock);
3338 }
3339 /**
3340  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3341  * @phba: pointer to lpfc hba data structure.
3342  *
3343  * This routine first calculates the sizes of the current els and allocated
3344  * scsi sgl lists, and then goes through all sgls to updates the physical
3345  * XRIs assigned due to port function reset. During port initialization, the
3346  * current els and allocated scsi sgl lists are 0s.
3347  *
3348  * Return codes
3349  *   0 - successful (for now, it always returns 0)
3350  **/
3351 int
3352 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3353 {
3354         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3355         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3356         LIST_HEAD(els_sgl_list);
3357         int rc;
3358
3359         /*
3360          * update on pci function's els xri-sgl list
3361          */
3362         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3363
3364         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3365                 /* els xri-sgl expanded */
3366                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3367                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3368                                 "3157 ELS xri-sgl count increased from "
3369                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3370                                 els_xri_cnt);
3371                 /* allocate the additional els sgls */
3372                 for (i = 0; i < xri_cnt; i++) {
3373                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3374                                              GFP_KERNEL);
3375                         if (sglq_entry == NULL) {
3376                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3377                                                 "2562 Failure to allocate an "
3378                                                 "ELS sgl entry:%d\n", i);
3379                                 rc = -ENOMEM;
3380                                 goto out_free_mem;
3381                         }
3382                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3383                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3384                                                            &sglq_entry->phys);
3385                         if (sglq_entry->virt == NULL) {
3386                                 kfree(sglq_entry);
3387                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3388                                                 "2563 Failure to allocate an "
3389                                                 "ELS mbuf:%d\n", i);
3390                                 rc = -ENOMEM;
3391                                 goto out_free_mem;
3392                         }
3393                         sglq_entry->sgl = sglq_entry->virt;
3394                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3395                         sglq_entry->state = SGL_FREED;
3396                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3397                 }
3398                 spin_lock_irq(&phba->hbalock);
3399                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3400                 list_splice_init(&els_sgl_list,
3401                                  &phba->sli4_hba.lpfc_els_sgl_list);
3402                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3403                 spin_unlock_irq(&phba->hbalock);
3404         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3405                 /* els xri-sgl shrinked */
3406                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3407                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3408                                 "3158 ELS xri-sgl count decreased from "
3409                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3410                                 els_xri_cnt);
3411                 spin_lock_irq(&phba->hbalock);
3412                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3413                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3414                                  &els_sgl_list);
3415                 /* release extra els sgls from list */
3416                 for (i = 0; i < xri_cnt; i++) {
3417                         list_remove_head(&els_sgl_list,
3418                                          sglq_entry, struct lpfc_sglq, list);
3419                         if (sglq_entry) {
3420                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3421                                                  sglq_entry->phys);
3422                                 kfree(sglq_entry);
3423                         }
3424                 }
3425                 list_splice_init(&els_sgl_list,
3426                                  &phba->sli4_hba.lpfc_els_sgl_list);
3427                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3428                 spin_unlock_irq(&phba->hbalock);
3429         } else
3430                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3431                                 "3163 ELS xri-sgl count unchanged: %d\n",
3432                                 els_xri_cnt);
3433         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3434
3435         /* update xris to els sgls on the list */
3436         sglq_entry = NULL;
3437         sglq_entry_next = NULL;
3438         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3439                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3440                 lxri = lpfc_sli4_next_xritag(phba);
3441                 if (lxri == NO_XRI) {
3442                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3443                                         "2400 Failed to allocate xri for "
3444                                         "ELS sgl\n");
3445                         rc = -ENOMEM;
3446                         goto out_free_mem;
3447                 }
3448                 sglq_entry->sli4_lxritag = lxri;
3449                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3450         }
3451         return 0;
3452
3453 out_free_mem:
3454         lpfc_free_els_sgl_list(phba);
3455         return rc;
3456 }
3457
3458 /**
3459  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3460  * @phba: pointer to lpfc hba data structure.
3461  *
3462  * This routine first calculates the sizes of the current els and allocated
3463  * scsi sgl lists, and then goes through all sgls to updates the physical
3464  * XRIs assigned due to port function reset. During port initialization, the
3465  * current els and allocated scsi sgl lists are 0s.
3466  *
3467  * Return codes
3468  *   0 - successful (for now, it always returns 0)
3469  **/
3470 int
3471 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3472 {
3473         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3474         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3475         uint16_t nvmet_xri_cnt;
3476         LIST_HEAD(nvmet_sgl_list);
3477         int rc;
3478
3479         /*
3480          * update on pci function's nvmet xri-sgl list
3481          */
3482         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3483
3484         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3485         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3486         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3487                 /* els xri-sgl expanded */
3488                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3489                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3490                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3491                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3492                 /* allocate the additional nvmet sgls */
3493                 for (i = 0; i < xri_cnt; i++) {
3494                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3495                                              GFP_KERNEL);
3496                         if (sglq_entry == NULL) {
3497                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3498                                                 "6303 Failure to allocate an "
3499                                                 "NVMET sgl entry:%d\n", i);
3500                                 rc = -ENOMEM;
3501                                 goto out_free_mem;
3502                         }
3503                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3504                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3505                                                            &sglq_entry->phys);
3506                         if (sglq_entry->virt == NULL) {
3507                                 kfree(sglq_entry);
3508                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3509                                                 "6304 Failure to allocate an "
3510                                                 "NVMET buf:%d\n", i);
3511                                 rc = -ENOMEM;
3512                                 goto out_free_mem;
3513                         }
3514                         sglq_entry->sgl = sglq_entry->virt;
3515                         memset(sglq_entry->sgl, 0,
3516                                phba->cfg_sg_dma_buf_size);
3517                         sglq_entry->state = SGL_FREED;
3518                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3519                 }
3520                 spin_lock_irq(&phba->hbalock);
3521                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3522                 list_splice_init(&nvmet_sgl_list,
3523                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3524                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3525                 spin_unlock_irq(&phba->hbalock);
3526         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3527                 /* nvmet xri-sgl shrunk */
3528                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3529                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3530                                 "6305 NVMET xri-sgl count decreased from "
3531                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3532                                 nvmet_xri_cnt);
3533                 spin_lock_irq(&phba->hbalock);
3534                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3535                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3536                                  &nvmet_sgl_list);
3537                 /* release extra nvmet sgls from list */
3538                 for (i = 0; i < xri_cnt; i++) {
3539                         list_remove_head(&nvmet_sgl_list,
3540                                          sglq_entry, struct lpfc_sglq, list);
3541                         if (sglq_entry) {
3542                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3543                                                     sglq_entry->phys);
3544                                 kfree(sglq_entry);
3545                         }
3546                 }
3547                 list_splice_init(&nvmet_sgl_list,
3548                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3549                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3550                 spin_unlock_irq(&phba->hbalock);
3551         } else
3552                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3553                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3554                                 nvmet_xri_cnt);
3555         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3556
3557         /* update xris to nvmet sgls on the list */
3558         sglq_entry = NULL;
3559         sglq_entry_next = NULL;
3560         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3561                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3562                 lxri = lpfc_sli4_next_xritag(phba);
3563                 if (lxri == NO_XRI) {
3564                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3565                                         "6307 Failed to allocate xri for "
3566                                         "NVMET sgl\n");
3567                         rc = -ENOMEM;
3568                         goto out_free_mem;
3569                 }
3570                 sglq_entry->sli4_lxritag = lxri;
3571                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3572         }
3573         return 0;
3574
3575 out_free_mem:
3576         lpfc_free_nvmet_sgl_list(phba);
3577         return rc;
3578 }
3579
3580 /**
3581  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3582  * @phba: pointer to lpfc hba data structure.
3583  *
3584  * This routine first calculates the sizes of the current els and allocated
3585  * scsi sgl lists, and then goes through all sgls to updates the physical
3586  * XRIs assigned due to port function reset. During port initialization, the
3587  * current els and allocated scsi sgl lists are 0s.
3588  *
3589  * Return codes
3590  *   0 - successful (for now, it always returns 0)
3591  **/
3592 int
3593 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3594 {
3595         struct lpfc_scsi_buf *psb, *psb_next;
3596         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3597         LIST_HEAD(scsi_sgl_list);
3598         int rc;
3599
3600         /*
3601          * update on pci function's els xri-sgl list
3602          */
3603         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3604         phba->total_scsi_bufs = 0;
3605
3606         /*
3607          * update on pci function's allocated scsi xri-sgl list
3608          */
3609         /* maximum number of xris available for scsi buffers */
3610         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3611                                       els_xri_cnt;
3612
3613         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3614                 return 0;
3615
3616         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3617                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3618                         (phba->sli4_hba.scsi_xri_max *
3619                          phba->cfg_xri_split) / 100;
3620
3621         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3622         spin_lock(&phba->scsi_buf_list_put_lock);
3623         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3624         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3625         spin_unlock(&phba->scsi_buf_list_put_lock);
3626         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3627
3628         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3629                         "6060 Current allocated SCSI xri-sgl count:%d, "
3630                         "maximum  SCSI xri count:%d (split:%d)\n",
3631                         phba->sli4_hba.scsi_xri_cnt,
3632                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3633
3634         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3635                 /* max scsi xri shrinked below the allocated scsi buffers */
3636                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3637                                         phba->sli4_hba.scsi_xri_max;
3638                 /* release the extra allocated scsi buffers */
3639                 for (i = 0; i < scsi_xri_cnt; i++) {
3640                         list_remove_head(&scsi_sgl_list, psb,
3641                                          struct lpfc_scsi_buf, list);
3642                         if (psb) {
3643                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3644                                               psb->data, psb->dma_handle);
3645                                 kfree(psb);
3646                         }
3647                 }
3648                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3649                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3650                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3651         }
3652
3653         /* update xris associated to remaining allocated scsi buffers */
3654         psb = NULL;
3655         psb_next = NULL;
3656         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3657                 lxri = lpfc_sli4_next_xritag(phba);
3658                 if (lxri == NO_XRI) {
3659                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3660                                         "2560 Failed to allocate xri for "
3661                                         "scsi buffer\n");
3662                         rc = -ENOMEM;
3663                         goto out_free_mem;
3664                 }
3665                 psb->cur_iocbq.sli4_lxritag = lxri;
3666                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3667         }
3668         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3669         spin_lock(&phba->scsi_buf_list_put_lock);
3670         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3671         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3672         spin_unlock(&phba->scsi_buf_list_put_lock);
3673         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3674         return 0;
3675
3676 out_free_mem:
3677         lpfc_scsi_free(phba);
3678         return rc;
3679 }
3680
3681 static uint64_t
3682 lpfc_get_wwpn(struct lpfc_hba *phba)
3683 {
3684         uint64_t wwn;
3685         int rc;
3686         LPFC_MBOXQ_t *mboxq;
3687         MAILBOX_t *mb;
3688
3689         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3690                                                 GFP_KERNEL);
3691         if (!mboxq)
3692                 return (uint64_t)-1;
3693
3694         /* First get WWN of HBA instance */
3695         lpfc_read_nv(phba, mboxq);
3696         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3697         if (rc != MBX_SUCCESS) {
3698                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3699                                 "6019 Mailbox failed , mbxCmd x%x "
3700                                 "READ_NV, mbxStatus x%x\n",
3701                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3702                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3703                 mempool_free(mboxq, phba->mbox_mem_pool);
3704                 return (uint64_t) -1;
3705         }
3706         mb = &mboxq->u.mb;
3707         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3708         /* wwn is WWPN of HBA instance */
3709         mempool_free(mboxq, phba->mbox_mem_pool);
3710         if (phba->sli_rev == LPFC_SLI_REV4)
3711                 return be64_to_cpu(wwn);
3712         else
3713                 return (((wwn & 0xffffffff00000000) >> 32) |
3714                         ((wwn & 0x00000000ffffffff) << 32));
3715
3716 }
3717
3718 /**
3719  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3720  * @phba: pointer to lpfc hba data structure.
3721  *
3722  * This routine first calculates the sizes of the current els and allocated
3723  * scsi sgl lists, and then goes through all sgls to updates the physical
3724  * XRIs assigned due to port function reset. During port initialization, the
3725  * current els and allocated scsi sgl lists are 0s.
3726  *
3727  * Return codes
3728  *   0 - successful (for now, it always returns 0)
3729  **/
3730 int
3731 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3732 {
3733         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3734         uint16_t i, lxri, els_xri_cnt;
3735         uint16_t nvme_xri_cnt, nvme_xri_max;
3736         LIST_HEAD(nvme_sgl_list);
3737         int rc;
3738
3739         phba->total_nvme_bufs = 0;
3740
3741         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3742                 return 0;
3743         /*
3744          * update on pci function's allocated nvme xri-sgl list
3745          */
3746
3747         /* maximum number of xris available for nvme buffers */
3748         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3749         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3750         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3751         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3752
3753         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3754                         "6074 Current allocated NVME xri-sgl count:%d, "
3755                         "maximum  NVME xri count:%d\n",
3756                         phba->sli4_hba.nvme_xri_cnt,
3757                         phba->sli4_hba.nvme_xri_max);
3758
3759         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3760         spin_lock(&phba->nvme_buf_list_put_lock);
3761         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3762         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3763         spin_unlock(&phba->nvme_buf_list_put_lock);
3764         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3765
3766         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3767                 /* max nvme xri shrunk below the allocated nvme buffers */
3768                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3769                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3770                                         phba->sli4_hba.nvme_xri_max;
3771                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3772                 /* release the extra allocated nvme buffers */
3773                 for (i = 0; i < nvme_xri_cnt; i++) {
3774                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3775                                          struct lpfc_nvme_buf, list);
3776                         if (lpfc_ncmd) {
3777                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3778                                               lpfc_ncmd->data,
3779                                               lpfc_ncmd->dma_handle);
3780                                 kfree(lpfc_ncmd);
3781                         }
3782                 }
3783                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3784                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3785                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3786         }
3787
3788         /* update xris associated to remaining allocated nvme buffers */
3789         lpfc_ncmd = NULL;
3790         lpfc_ncmd_next = NULL;
3791         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3792                                  &nvme_sgl_list, list) {
3793                 lxri = lpfc_sli4_next_xritag(phba);
3794                 if (lxri == NO_XRI) {
3795                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3796                                         "6075 Failed to allocate xri for "
3797                                         "nvme buffer\n");
3798                         rc = -ENOMEM;
3799                         goto out_free_mem;
3800                 }
3801                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3802                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3803         }
3804         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3805         spin_lock(&phba->nvme_buf_list_put_lock);
3806         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3807         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3808         spin_unlock(&phba->nvme_buf_list_put_lock);
3809         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3810         return 0;
3811
3812 out_free_mem:
3813         lpfc_nvme_free(phba);
3814         return rc;
3815 }
3816
3817 /**
3818  * lpfc_create_port - Create an FC port
3819  * @phba: pointer to lpfc hba data structure.
3820  * @instance: a unique integer ID to this FC port.
3821  * @dev: pointer to the device data structure.
3822  *
3823  * This routine creates a FC port for the upper layer protocol. The FC port
3824  * can be created on top of either a physical port or a virtual port provided
3825  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3826  * and associates the FC port created before adding the shost into the SCSI
3827  * layer.
3828  *
3829  * Return codes
3830  *   @vport - pointer to the virtual N_Port data structure.
3831  *   NULL - port create failed.
3832  **/
3833 struct lpfc_vport *
3834 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3835 {
3836         struct lpfc_vport *vport;
3837         struct Scsi_Host  *shost = NULL;
3838         int error = 0;
3839         int i;
3840         uint64_t wwn;
3841         bool use_no_reset_hba = false;
3842         int rc;
3843
3844         if (lpfc_no_hba_reset_cnt) {
3845                 if (phba->sli_rev < LPFC_SLI_REV4 &&
3846                     dev == &phba->pcidev->dev) {
3847                         /* Reset the port first */
3848                         lpfc_sli_brdrestart(phba);
3849                         rc = lpfc_sli_chipset_init(phba);
3850                         if (rc)
3851                                 return NULL;
3852                 }
3853                 wwn = lpfc_get_wwpn(phba);
3854         }
3855
3856         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3857                 if (wwn == lpfc_no_hba_reset[i]) {
3858                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3859                                         "6020 Setting use_no_reset port=%llx\n",
3860                                         wwn);
3861                         use_no_reset_hba = true;
3862                         break;
3863                 }
3864         }
3865
3866         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3867                 if (dev != &phba->pcidev->dev) {
3868                         shost = scsi_host_alloc(&lpfc_vport_template,
3869                                                 sizeof(struct lpfc_vport));
3870                 } else {
3871                         if (!use_no_reset_hba)
3872                                 shost = scsi_host_alloc(&lpfc_template,
3873                                                 sizeof(struct lpfc_vport));
3874                         else
3875                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3876                                                 sizeof(struct lpfc_vport));
3877                 }
3878         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3879                 shost = scsi_host_alloc(&lpfc_template_nvme,
3880                                         sizeof(struct lpfc_vport));
3881         }
3882         if (!shost)
3883                 goto out;
3884
3885         vport = (struct lpfc_vport *) shost->hostdata;
3886         vport->phba = phba;
3887         vport->load_flag |= FC_LOADING;
3888         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3889         vport->fc_rscn_flush = 0;
3890         lpfc_get_vport_cfgparam(vport);
3891
3892         shost->unique_id = instance;
3893         shost->max_id = LPFC_MAX_TARGET;
3894         shost->max_lun = vport->cfg_max_luns;
3895         shost->this_id = -1;
3896         shost->max_cmd_len = 16;
3897         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3898         if (phba->sli_rev == LPFC_SLI_REV4) {
3899                 shost->dma_boundary =
3900                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3901                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3902         }
3903
3904         /*
3905          * Set initial can_queue value since 0 is no longer supported and
3906          * scsi_add_host will fail. This will be adjusted later based on the
3907          * max xri value determined in hba setup.
3908          */
3909         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3910         if (dev != &phba->pcidev->dev) {
3911                 shost->transportt = lpfc_vport_transport_template;
3912                 vport->port_type = LPFC_NPIV_PORT;
3913         } else {
3914                 shost->transportt = lpfc_transport_template;
3915                 vport->port_type = LPFC_PHYSICAL_PORT;
3916         }
3917
3918         /* Initialize all internally managed lists. */
3919         INIT_LIST_HEAD(&vport->fc_nodes);
3920         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3921         spin_lock_init(&vport->work_port_lock);
3922
3923         setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
3924                         (unsigned long)vport);
3925
3926         setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
3927                         (unsigned long)vport);
3928
3929         setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
3930                         (unsigned long)vport);
3931
3932         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3933         if (error)
3934                 goto out_put_shost;
3935
3936         spin_lock_irq(&phba->hbalock);
3937         list_add_tail(&vport->listentry, &phba->port_list);
3938         spin_unlock_irq(&phba->hbalock);
3939         return vport;
3940
3941 out_put_shost:
3942         scsi_host_put(shost);
3943 out:
3944         return NULL;
3945 }
3946
3947 /**
3948  * destroy_port -  destroy an FC port
3949  * @vport: pointer to an lpfc virtual N_Port data structure.
3950  *
3951  * This routine destroys a FC port from the upper layer protocol. All the
3952  * resources associated with the port are released.
3953  **/
3954 void
3955 destroy_port(struct lpfc_vport *vport)
3956 {
3957         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3958         struct lpfc_hba  *phba = vport->phba;
3959
3960         lpfc_debugfs_terminate(vport);
3961         fc_remove_host(shost);
3962         scsi_remove_host(shost);
3963
3964         spin_lock_irq(&phba->hbalock);
3965         list_del_init(&vport->listentry);
3966         spin_unlock_irq(&phba->hbalock);
3967
3968         lpfc_cleanup(vport);
3969         return;
3970 }
3971
3972 /**
3973  * lpfc_get_instance - Get a unique integer ID
3974  *
3975  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3976  * uses the kernel idr facility to perform the task.
3977  *
3978  * Return codes:
3979  *   instance - a unique integer ID allocated as the new instance.
3980  *   -1 - lpfc get instance failed.
3981  **/
3982 int
3983 lpfc_get_instance(void)
3984 {
3985         int ret;
3986
3987         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3988         return ret < 0 ? -1 : ret;
3989 }
3990
3991 /**
3992  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3993  * @shost: pointer to SCSI host data structure.
3994  * @time: elapsed time of the scan in jiffies.
3995  *
3996  * This routine is called by the SCSI layer with a SCSI host to determine
3997  * whether the scan host is finished.
3998  *
3999  * Note: there is no scan_start function as adapter initialization will have
4000  * asynchronously kicked off the link initialization.
4001  *
4002  * Return codes
4003  *   0 - SCSI host scan is not over yet.
4004  *   1 - SCSI host scan is over.
4005  **/
4006 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4007 {
4008         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4009         struct lpfc_hba   *phba = vport->phba;
4010         int stat = 0;
4011
4012         spin_lock_irq(shost->host_lock);
4013
4014         if (vport->load_flag & FC_UNLOADING) {
4015                 stat = 1;
4016                 goto finished;
4017         }
4018         if (time >= msecs_to_jiffies(30 * 1000)) {
4019                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4020                                 "0461 Scanning longer than 30 "
4021                                 "seconds.  Continuing initialization\n");
4022                 stat = 1;
4023                 goto finished;
4024         }
4025         if (time >= msecs_to_jiffies(15 * 1000) &&
4026             phba->link_state <= LPFC_LINK_DOWN) {
4027                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4028                                 "0465 Link down longer than 15 "
4029                                 "seconds.  Continuing initialization\n");
4030                 stat = 1;
4031                 goto finished;
4032         }
4033
4034         if (vport->port_state != LPFC_VPORT_READY)
4035                 goto finished;
4036         if (vport->num_disc_nodes || vport->fc_prli_sent)
4037                 goto finished;
4038         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4039                 goto finished;
4040         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4041                 goto finished;
4042
4043         stat = 1;
4044
4045 finished:
4046         spin_unlock_irq(shost->host_lock);
4047         return stat;
4048 }
4049
4050 /**
4051  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4052  * @shost: pointer to SCSI host data structure.
4053  *
4054  * This routine initializes a given SCSI host attributes on a FC port. The
4055  * SCSI host can be either on top of a physical port or a virtual port.
4056  **/
4057 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4058 {
4059         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4060         struct lpfc_hba   *phba = vport->phba;
4061         /*
4062          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4063          */
4064
4065         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4066         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4067         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4068
4069         memset(fc_host_supported_fc4s(shost), 0,
4070                sizeof(fc_host_supported_fc4s(shost)));
4071         fc_host_supported_fc4s(shost)[2] = 1;
4072         fc_host_supported_fc4s(shost)[7] = 1;
4073
4074         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4075                                  sizeof fc_host_symbolic_name(shost));
4076
4077         fc_host_supported_speeds(shost) = 0;
4078         if (phba->lmt & LMT_32Gb)
4079                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4080         if (phba->lmt & LMT_16Gb)
4081                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4082         if (phba->lmt & LMT_10Gb)
4083                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4084         if (phba->lmt & LMT_8Gb)
4085                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4086         if (phba->lmt & LMT_4Gb)
4087                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4088         if (phba->lmt & LMT_2Gb)
4089                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4090         if (phba->lmt & LMT_1Gb)
4091                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4092
4093         fc_host_maxframe_size(shost) =
4094                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4095                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4096
4097         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4098
4099         /* This value is also unchanging */
4100         memset(fc_host_active_fc4s(shost), 0,
4101                sizeof(fc_host_active_fc4s(shost)));
4102         fc_host_active_fc4s(shost)[2] = 1;
4103         fc_host_active_fc4s(shost)[7] = 1;
4104
4105         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4106         spin_lock_irq(shost->host_lock);
4107         vport->load_flag &= ~FC_LOADING;
4108         spin_unlock_irq(shost->host_lock);
4109 }
4110
4111 /**
4112  * lpfc_stop_port_s3 - Stop SLI3 device port
4113  * @phba: pointer to lpfc hba data structure.
4114  *
4115  * This routine is invoked to stop an SLI3 device port, it stops the device
4116  * from generating interrupts and stops the device driver's timers for the
4117  * device.
4118  **/
4119 static void
4120 lpfc_stop_port_s3(struct lpfc_hba *phba)
4121 {
4122         /* Clear all interrupt enable conditions */
4123         writel(0, phba->HCregaddr);
4124         readl(phba->HCregaddr); /* flush */
4125         /* Clear all pending interrupts */
4126         writel(0xffffffff, phba->HAregaddr);
4127         readl(phba->HAregaddr); /* flush */
4128
4129         /* Reset some HBA SLI setup states */
4130         lpfc_stop_hba_timers(phba);
4131         phba->pport->work_port_events = 0;
4132 }
4133
4134 /**
4135  * lpfc_stop_port_s4 - Stop SLI4 device port
4136  * @phba: pointer to lpfc hba data structure.
4137  *
4138  * This routine is invoked to stop an SLI4 device port, it stops the device
4139  * from generating interrupts and stops the device driver's timers for the
4140  * device.
4141  **/
4142 static void
4143 lpfc_stop_port_s4(struct lpfc_hba *phba)
4144 {
4145         /* Reset some HBA SLI4 setup states */
4146         lpfc_stop_hba_timers(phba);
4147         phba->pport->work_port_events = 0;
4148         phba->sli4_hba.intr_enable = 0;
4149 }
4150
4151 /**
4152  * lpfc_stop_port - Wrapper function for stopping hba port
4153  * @phba: Pointer to HBA context object.
4154  *
4155  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4156  * the API jump table function pointer from the lpfc_hba struct.
4157  **/
4158 void
4159 lpfc_stop_port(struct lpfc_hba *phba)
4160 {
4161         phba->lpfc_stop_port(phba);
4162 }
4163
4164 /**
4165  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4166  * @phba: Pointer to hba for which this call is being executed.
4167  *
4168  * This routine starts the timer waiting for the FCF rediscovery to complete.
4169  **/
4170 void
4171 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4172 {
4173         unsigned long fcf_redisc_wait_tmo =
4174                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4175         /* Start fcf rediscovery wait period timer */
4176         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4177         spin_lock_irq(&phba->hbalock);
4178         /* Allow action to new fcf asynchronous event */
4179         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4180         /* Mark the FCF rediscovery pending state */
4181         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4182         spin_unlock_irq(&phba->hbalock);
4183 }
4184
4185 /**
4186  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4187  * @ptr: Map to lpfc_hba data structure pointer.
4188  *
4189  * This routine is invoked when waiting for FCF table rediscover has been
4190  * timed out. If new FCF record(s) has (have) been discovered during the
4191  * wait period, a new FCF event shall be added to the FCOE async event
4192  * list, and then worker thread shall be waked up for processing from the
4193  * worker thread context.
4194  **/
4195 static void
4196 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
4197 {
4198         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
4199
4200         /* Don't send FCF rediscovery event if timer cancelled */
4201         spin_lock_irq(&phba->hbalock);
4202         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4203                 spin_unlock_irq(&phba->hbalock);
4204                 return;
4205         }
4206         /* Clear FCF rediscovery timer pending flag */
4207         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4208         /* FCF rediscovery event to worker thread */
4209         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4210         spin_unlock_irq(&phba->hbalock);
4211         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4212                         "2776 FCF rediscover quiescent timer expired\n");
4213         /* wake up worker thread */
4214         lpfc_worker_wake_up(phba);
4215 }
4216
4217 /**
4218  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4219  * @phba: pointer to lpfc hba data structure.
4220  * @acqe_link: pointer to the async link completion queue entry.
4221  *
4222  * This routine is to parse the SLI4 link-attention link fault code and
4223  * translate it into the base driver's read link attention mailbox command
4224  * status.
4225  *
4226  * Return: Link-attention status in terms of base driver's coding.
4227  **/
4228 static uint16_t
4229 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4230                            struct lpfc_acqe_link *acqe_link)
4231 {
4232         uint16_t latt_fault;
4233
4234         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4235         case LPFC_ASYNC_LINK_FAULT_NONE:
4236         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4237         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4238                 latt_fault = 0;
4239                 break;
4240         default:
4241                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4242                                 "0398 Invalid link fault code: x%x\n",
4243                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4244                 latt_fault = MBXERR_ERROR;
4245                 break;
4246         }
4247         return latt_fault;
4248 }
4249
4250 /**
4251  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4252  * @phba: pointer to lpfc hba data structure.
4253  * @acqe_link: pointer to the async link completion queue entry.
4254  *
4255  * This routine is to parse the SLI4 link attention type and translate it
4256  * into the base driver's link attention type coding.
4257  *
4258  * Return: Link attention type in terms of base driver's coding.
4259  **/
4260 static uint8_t
4261 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4262                           struct lpfc_acqe_link *acqe_link)
4263 {
4264         uint8_t att_type;
4265
4266         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4267         case LPFC_ASYNC_LINK_STATUS_DOWN:
4268         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4269                 att_type = LPFC_ATT_LINK_DOWN;
4270                 break;
4271         case LPFC_ASYNC_LINK_STATUS_UP:
4272                 /* Ignore physical link up events - wait for logical link up */
4273                 att_type = LPFC_ATT_RESERVED;
4274                 break;
4275         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4276                 att_type = LPFC_ATT_LINK_UP;
4277                 break;
4278         default:
4279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4280                                 "0399 Invalid link attention type: x%x\n",
4281                                 bf_get(lpfc_acqe_link_status, acqe_link));
4282                 att_type = LPFC_ATT_RESERVED;
4283                 break;
4284         }
4285         return att_type;
4286 }
4287
4288 /**
4289  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4290  * @phba: pointer to lpfc hba data structure.
4291  *
4292  * This routine is to get an SLI3 FC port's link speed in Mbps.
4293  *
4294  * Return: link speed in terms of Mbps.
4295  **/
4296 uint32_t
4297 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4298 {
4299         uint32_t link_speed;
4300
4301         if (!lpfc_is_link_up(phba))
4302                 return 0;
4303
4304         if (phba->sli_rev <= LPFC_SLI_REV3) {
4305                 switch (phba->fc_linkspeed) {
4306                 case LPFC_LINK_SPEED_1GHZ:
4307                         link_speed = 1000;
4308                         break;
4309                 case LPFC_LINK_SPEED_2GHZ:
4310                         link_speed = 2000;
4311                         break;
4312                 case LPFC_LINK_SPEED_4GHZ:
4313                         link_speed = 4000;
4314                         break;
4315                 case LPFC_LINK_SPEED_8GHZ:
4316                         link_speed = 8000;
4317                         break;
4318                 case LPFC_LINK_SPEED_10GHZ:
4319                         link_speed = 10000;
4320                         break;
4321                 case LPFC_LINK_SPEED_16GHZ:
4322                         link_speed = 16000;
4323                         break;
4324                 default:
4325                         link_speed = 0;
4326                 }
4327         } else {
4328                 if (phba->sli4_hba.link_state.logical_speed)
4329                         link_speed =
4330                               phba->sli4_hba.link_state.logical_speed;
4331                 else
4332                         link_speed = phba->sli4_hba.link_state.speed;
4333         }
4334         return link_speed;
4335 }
4336
4337 /**
4338  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4339  * @phba: pointer to lpfc hba data structure.
4340  * @evt_code: asynchronous event code.
4341  * @speed_code: asynchronous event link speed code.
4342  *
4343  * This routine is to parse the giving SLI4 async event link speed code into
4344  * value of Mbps for the link speed.
4345  *
4346  * Return: link speed in terms of Mbps.
4347  **/
4348 static uint32_t
4349 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4350                            uint8_t speed_code)
4351 {
4352         uint32_t port_speed;
4353
4354         switch (evt_code) {
4355         case LPFC_TRAILER_CODE_LINK:
4356                 switch (speed_code) {
4357                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4358                         port_speed = 0;
4359                         break;
4360                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4361                         port_speed = 10;
4362                         break;
4363                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4364                         port_speed = 100;
4365                         break;
4366                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4367                         port_speed = 1000;
4368                         break;
4369                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4370                         port_speed = 10000;
4371                         break;
4372                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4373                         port_speed = 20000;
4374                         break;
4375                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4376                         port_speed = 25000;
4377                         break;
4378                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4379                         port_speed = 40000;
4380                         break;
4381                 default:
4382                         port_speed = 0;
4383                 }
4384                 break;
4385         case LPFC_TRAILER_CODE_FC:
4386                 switch (speed_code) {
4387                 case LPFC_FC_LA_SPEED_UNKNOWN:
4388                         port_speed = 0;
4389                         break;
4390                 case LPFC_FC_LA_SPEED_1G:
4391                         port_speed = 1000;
4392                         break;
4393                 case LPFC_FC_LA_SPEED_2G:
4394                         port_speed = 2000;
4395                         break;
4396                 case LPFC_FC_LA_SPEED_4G:
4397                         port_speed = 4000;
4398                         break;
4399                 case LPFC_FC_LA_SPEED_8G:
4400                         port_speed = 8000;
4401                         break;
4402                 case LPFC_FC_LA_SPEED_10G:
4403                         port_speed = 10000;
4404                         break;
4405                 case LPFC_FC_LA_SPEED_16G:
4406                         port_speed = 16000;
4407                         break;
4408                 case LPFC_FC_LA_SPEED_32G:
4409                         port_speed = 32000;
4410                         break;
4411                 default:
4412                         port_speed = 0;
4413                 }
4414                 break;
4415         default:
4416                 port_speed = 0;
4417         }
4418         return port_speed;
4419 }
4420
4421 /**
4422  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4423  * @phba: pointer to lpfc hba data structure.
4424  * @acqe_link: pointer to the async link completion queue entry.
4425  *
4426  * This routine is to handle the SLI4 asynchronous FCoE link event.
4427  **/
4428 static void
4429 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4430                          struct lpfc_acqe_link *acqe_link)
4431 {
4432         struct lpfc_dmabuf *mp;
4433         LPFC_MBOXQ_t *pmb;
4434         MAILBOX_t *mb;
4435         struct lpfc_mbx_read_top *la;
4436         uint8_t att_type;
4437         int rc;
4438
4439         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4440         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4441                 return;
4442         phba->fcoe_eventtag = acqe_link->event_tag;
4443         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4444         if (!pmb) {
4445                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4446                                 "0395 The mboxq allocation failed\n");
4447                 return;
4448         }
4449         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4450         if (!mp) {
4451                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4452                                 "0396 The lpfc_dmabuf allocation failed\n");
4453                 goto out_free_pmb;
4454         }
4455         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4456         if (!mp->virt) {
4457                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4458                                 "0397 The mbuf allocation failed\n");
4459                 goto out_free_dmabuf;
4460         }
4461
4462         /* Cleanup any outstanding ELS commands */
4463         lpfc_els_flush_all_cmd(phba);
4464
4465         /* Block ELS IOCBs until we have done process link event */
4466         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4467
4468         /* Update link event statistics */
4469         phba->sli.slistat.link_event++;
4470
4471         /* Create lpfc_handle_latt mailbox command from link ACQE */
4472         lpfc_read_topology(phba, pmb, mp);
4473         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4474         pmb->vport = phba->pport;
4475
4476         /* Keep the link status for extra SLI4 state machine reference */
4477         phba->sli4_hba.link_state.speed =
4478                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4479                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4480         phba->sli4_hba.link_state.duplex =
4481                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4482         phba->sli4_hba.link_state.status =
4483                                 bf_get(lpfc_acqe_link_status, acqe_link);
4484         phba->sli4_hba.link_state.type =
4485                                 bf_get(lpfc_acqe_link_type, acqe_link);
4486         phba->sli4_hba.link_state.number =
4487                                 bf_get(lpfc_acqe_link_number, acqe_link);
4488         phba->sli4_hba.link_state.fault =
4489                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4490         phba->sli4_hba.link_state.logical_speed =
4491                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4492
4493         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4494                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4495                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4496                         "Logical speed:%dMbps Fault:%d\n",
4497                         phba->sli4_hba.link_state.speed,
4498                         phba->sli4_hba.link_state.topology,
4499                         phba->sli4_hba.link_state.status,
4500                         phba->sli4_hba.link_state.type,
4501                         phba->sli4_hba.link_state.number,
4502                         phba->sli4_hba.link_state.logical_speed,
4503                         phba->sli4_hba.link_state.fault);
4504         /*
4505          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4506          * topology info. Note: Optional for non FC-AL ports.
4507          */
4508         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4509                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4510                 if (rc == MBX_NOT_FINISHED)
4511                         goto out_free_dmabuf;
4512                 return;
4513         }
4514         /*
4515          * For FCoE Mode: fill in all the topology information we need and call
4516          * the READ_TOPOLOGY completion routine to continue without actually
4517          * sending the READ_TOPOLOGY mailbox command to the port.
4518          */
4519         /* Parse and translate status field */
4520         mb = &pmb->u.mb;
4521         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4522
4523         /* Parse and translate link attention fields */
4524         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4525         la->eventTag = acqe_link->event_tag;
4526         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4527         bf_set(lpfc_mbx_read_top_link_spd, la,
4528                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4529
4530         /* Fake the the following irrelvant fields */
4531         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4532         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4533         bf_set(lpfc_mbx_read_top_il, la, 0);
4534         bf_set(lpfc_mbx_read_top_pb, la, 0);
4535         bf_set(lpfc_mbx_read_top_fa, la, 0);
4536         bf_set(lpfc_mbx_read_top_mm, la, 0);
4537
4538         /* Invoke the lpfc_handle_latt mailbox command callback function */
4539         lpfc_mbx_cmpl_read_topology(phba, pmb);
4540
4541         return;
4542
4543 out_free_dmabuf:
4544         kfree(mp);
4545 out_free_pmb:
4546         mempool_free(pmb, phba->mbox_mem_pool);
4547 }
4548
4549 /**
4550  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4551  * @phba: pointer to lpfc hba data structure.
4552  * @acqe_fc: pointer to the async fc completion queue entry.
4553  *
4554  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4555  * that the event was received and then issue a read_topology mailbox command so
4556  * that the rest of the driver will treat it the same as SLI3.
4557  **/
4558 static void
4559 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4560 {
4561         struct lpfc_dmabuf *mp;
4562         LPFC_MBOXQ_t *pmb;
4563         MAILBOX_t *mb;
4564         struct lpfc_mbx_read_top *la;
4565         int rc;
4566
4567         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4568             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4569                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4570                                 "2895 Non FC link Event detected.(%d)\n",
4571                                 bf_get(lpfc_trailer_type, acqe_fc));
4572                 return;
4573         }
4574         /* Keep the link status for extra SLI4 state machine reference */
4575         phba->sli4_hba.link_state.speed =
4576                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4577                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4578         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4579         phba->sli4_hba.link_state.topology =
4580                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4581         phba->sli4_hba.link_state.status =
4582                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4583         phba->sli4_hba.link_state.type =
4584                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4585         phba->sli4_hba.link_state.number =
4586                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4587         phba->sli4_hba.link_state.fault =
4588                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4589         phba->sli4_hba.link_state.logical_speed =
4590                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4591         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4592                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4593                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4594                         "%dMbps Fault:%d\n",
4595                         phba->sli4_hba.link_state.speed,
4596                         phba->sli4_hba.link_state.topology,
4597                         phba->sli4_hba.link_state.status,
4598                         phba->sli4_hba.link_state.type,
4599                         phba->sli4_hba.link_state.number,
4600                         phba->sli4_hba.link_state.logical_speed,
4601                         phba->sli4_hba.link_state.fault);
4602         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4603         if (!pmb) {
4604                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4605                                 "2897 The mboxq allocation failed\n");
4606                 return;
4607         }
4608         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4609         if (!mp) {
4610                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4611                                 "2898 The lpfc_dmabuf allocation failed\n");
4612                 goto out_free_pmb;
4613         }
4614         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4615         if (!mp->virt) {
4616                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4617                                 "2899 The mbuf allocation failed\n");
4618                 goto out_free_dmabuf;
4619         }
4620
4621         /* Cleanup any outstanding ELS commands */
4622         lpfc_els_flush_all_cmd(phba);
4623
4624         /* Block ELS IOCBs until we have done process link event */
4625         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4626
4627         /* Update link event statistics */
4628         phba->sli.slistat.link_event++;
4629
4630         /* Create lpfc_handle_latt mailbox command from link ACQE */
4631         lpfc_read_topology(phba, pmb, mp);
4632         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4633         pmb->vport = phba->pport;
4634
4635         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4636                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4637
4638                 switch (phba->sli4_hba.link_state.status) {
4639                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4640                         phba->link_flag |= LS_MDS_LINK_DOWN;
4641                         break;
4642                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4643                         phba->link_flag |= LS_MDS_LOOPBACK;
4644                         break;
4645                 default:
4646                         break;
4647                 }
4648
4649                 /* Parse and translate status field */
4650                 mb = &pmb->u.mb;
4651                 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4652                                                            (void *)acqe_fc);
4653
4654                 /* Parse and translate link attention fields */
4655                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4656                 la->eventTag = acqe_fc->event_tag;
4657
4658                 if (phba->sli4_hba.link_state.status ==
4659                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4660                         bf_set(lpfc_mbx_read_top_att_type, la,
4661                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4662                 } else {
4663                         bf_set(lpfc_mbx_read_top_att_type, la,
4664                                LPFC_FC_LA_TYPE_LINK_DOWN);
4665                 }
4666                 /* Invoke the mailbox command callback function */
4667                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4668
4669                 return;
4670         }
4671
4672         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4673         if (rc == MBX_NOT_FINISHED)
4674                 goto out_free_dmabuf;
4675         return;
4676
4677 out_free_dmabuf:
4678         kfree(mp);
4679 out_free_pmb:
4680         mempool_free(pmb, phba->mbox_mem_pool);
4681 }
4682
4683 /**
4684  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4685  * @phba: pointer to lpfc hba data structure.
4686  * @acqe_fc: pointer to the async SLI completion queue entry.
4687  *
4688  * This routine is to handle the SLI4 asynchronous SLI events.
4689  **/
4690 static void
4691 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4692 {
4693         char port_name;
4694         char message[128];
4695         uint8_t status;
4696         uint8_t evt_type;
4697         uint8_t operational = 0;
4698         struct temp_event temp_event_data;
4699         struct lpfc_acqe_misconfigured_event *misconfigured;
4700         struct Scsi_Host  *shost;
4701
4702         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4703
4704         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4705                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4706                         "x%08x SLI Event Type:%d\n",
4707                         acqe_sli->event_data1, acqe_sli->event_data2,
4708                         evt_type);
4709
4710         port_name = phba->Port[0];
4711         if (port_name == 0x00)
4712                 port_name = '?'; /* get port name is empty */
4713
4714         switch (evt_type) {
4715         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4716                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4717                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4718                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4719
4720                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4721                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4722                                 acqe_sli->event_data1, port_name);
4723
4724                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4725                 shost = lpfc_shost_from_vport(phba->pport);
4726                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4727                                           sizeof(temp_event_data),
4728                                           (char *)&temp_event_data,
4729                                           SCSI_NL_VID_TYPE_PCI
4730                                           | PCI_VENDOR_ID_EMULEX);
4731                 break;
4732         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4733                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4734                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4735                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4736
4737                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4738                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4739                                 acqe_sli->event_data1, port_name);
4740
4741                 shost = lpfc_shost_from_vport(phba->pport);
4742                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4743                                           sizeof(temp_event_data),
4744                                           (char *)&temp_event_data,
4745                                           SCSI_NL_VID_TYPE_PCI
4746                                           | PCI_VENDOR_ID_EMULEX);
4747                 break;
4748         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4749                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4750                                         &acqe_sli->event_data1;
4751
4752                 /* fetch the status for this port */
4753                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4754                 case LPFC_LINK_NUMBER_0:
4755                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4756                                         &misconfigured->theEvent);
4757                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4758                                         &misconfigured->theEvent);
4759                         break;
4760                 case LPFC_LINK_NUMBER_1:
4761                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4762                                         &misconfigured->theEvent);
4763                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4764                                         &misconfigured->theEvent);
4765                         break;
4766                 case LPFC_LINK_NUMBER_2:
4767                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4768                                         &misconfigured->theEvent);
4769                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4770                                         &misconfigured->theEvent);
4771                         break;
4772                 case LPFC_LINK_NUMBER_3:
4773                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4774                                         &misconfigured->theEvent);
4775                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4776                                         &misconfigured->theEvent);
4777                         break;
4778                 default:
4779                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4780                                         "3296 "
4781                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4782                                         "event: Invalid link %d",
4783                                         phba->sli4_hba.lnk_info.lnk_no);
4784                         return;
4785                 }
4786
4787                 /* Skip if optic state unchanged */
4788                 if (phba->sli4_hba.lnk_info.optic_state == status)
4789                         return;
4790
4791                 switch (status) {
4792                 case LPFC_SLI_EVENT_STATUS_VALID:
4793                         sprintf(message, "Physical Link is functional");
4794                         break;
4795                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4796                         sprintf(message, "Optics faulted/incorrectly "
4797                                 "installed/not installed - Reseat optics, "
4798                                 "if issue not resolved, replace.");
4799                         break;
4800                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4801                         sprintf(message,
4802                                 "Optics of two types installed - Remove one "
4803                                 "optic or install matching pair of optics.");
4804                         break;
4805                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4806                         sprintf(message, "Incompatible optics - Replace with "
4807                                 "compatible optics for card to function.");
4808                         break;
4809                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4810                         sprintf(message, "Unqualified optics - Replace with "
4811                                 "Avago optics for Warranty and Technical "
4812                                 "Support - Link is%s operational",
4813                                 (operational) ? " not" : "");
4814                         break;
4815                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4816                         sprintf(message, "Uncertified optics - Replace with "
4817                                 "Avago-certified optics to enable link "
4818                                 "operation - Link is%s operational",
4819                                 (operational) ? " not" : "");
4820                         break;
4821                 default:
4822                         /* firmware is reporting a status we don't know about */
4823                         sprintf(message, "Unknown event status x%02x", status);
4824                         break;
4825                 }
4826                 phba->sli4_hba.lnk_info.optic_state = status;
4827                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4828                                 "3176 Port Name %c %s\n", port_name, message);
4829                 break;
4830         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4831                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4832                                 "3192 Remote DPort Test Initiated - "
4833                                 "Event Data1:x%08x Event Data2: x%08x\n",
4834                                 acqe_sli->event_data1, acqe_sli->event_data2);
4835                 break;
4836         default:
4837                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4838                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4839                                 "x%08x SLI Event Type:%d\n",
4840                                 acqe_sli->event_data1, acqe_sli->event_data2,
4841                                 evt_type);
4842                 break;
4843         }
4844 }
4845
4846 /**
4847  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4848  * @vport: pointer to vport data structure.
4849  *
4850  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4851  * response to a CVL event.
4852  *
4853  * Return the pointer to the ndlp with the vport if successful, otherwise
4854  * return NULL.
4855  **/
4856 static struct lpfc_nodelist *
4857 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4858 {
4859         struct lpfc_nodelist *ndlp;
4860         struct Scsi_Host *shost;
4861         struct lpfc_hba *phba;
4862
4863         if (!vport)
4864                 return NULL;
4865         phba = vport->phba;
4866         if (!phba)
4867                 return NULL;
4868         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4869         if (!ndlp) {
4870                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4871                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4872                 if (!ndlp)
4873                         return 0;
4874                 /* Set the node type */
4875                 ndlp->nlp_type |= NLP_FABRIC;
4876                 /* Put ndlp onto node list */
4877                 lpfc_enqueue_node(vport, ndlp);
4878         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4879                 /* re-setup ndlp without removing from node list */
4880                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4881                 if (!ndlp)
4882                         return 0;
4883         }
4884         if ((phba->pport->port_state < LPFC_FLOGI) &&
4885                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4886                 return NULL;
4887         /* If virtual link is not yet instantiated ignore CVL */
4888         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4889                 && (vport->port_state != LPFC_VPORT_FAILED))
4890                 return NULL;
4891         shost = lpfc_shost_from_vport(vport);
4892         if (!shost)
4893                 return NULL;
4894         lpfc_linkdown_port(vport);
4895         lpfc_cleanup_pending_mbox(vport);
4896         spin_lock_irq(shost->host_lock);
4897         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4898         spin_unlock_irq(shost->host_lock);
4899
4900         return ndlp;
4901 }
4902
4903 /**
4904  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4905  * @vport: pointer to lpfc hba data structure.
4906  *
4907  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4908  * response to a FCF dead event.
4909  **/
4910 static void
4911 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4912 {
4913         struct lpfc_vport **vports;
4914         int i;
4915
4916         vports = lpfc_create_vport_work_array(phba);
4917         if (vports)
4918                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4919                         lpfc_sli4_perform_vport_cvl(vports[i]);
4920         lpfc_destroy_vport_work_array(phba, vports);
4921 }
4922
4923 /**
4924  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4925  * @phba: pointer to lpfc hba data structure.
4926  * @acqe_link: pointer to the async fcoe completion queue entry.
4927  *
4928  * This routine is to handle the SLI4 asynchronous fcoe event.
4929  **/
4930 static void
4931 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4932                         struct lpfc_acqe_fip *acqe_fip)
4933 {
4934         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4935         int rc;
4936         struct lpfc_vport *vport;
4937         struct lpfc_nodelist *ndlp;
4938         struct Scsi_Host  *shost;
4939         int active_vlink_present;
4940         struct lpfc_vport **vports;
4941         int i;
4942
4943         phba->fc_eventTag = acqe_fip->event_tag;
4944         phba->fcoe_eventtag = acqe_fip->event_tag;
4945         switch (event_type) {
4946         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4947         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4948                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4949                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4950                                         LOG_DISCOVERY,
4951                                         "2546 New FCF event, evt_tag:x%x, "
4952                                         "index:x%x\n",
4953                                         acqe_fip->event_tag,
4954                                         acqe_fip->index);
4955                 else
4956                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4957                                         LOG_DISCOVERY,
4958                                         "2788 FCF param modified event, "
4959                                         "evt_tag:x%x, index:x%x\n",
4960                                         acqe_fip->event_tag,
4961                                         acqe_fip->index);
4962                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4963                         /*
4964                          * During period of FCF discovery, read the FCF
4965                          * table record indexed by the event to update
4966                          * FCF roundrobin failover eligible FCF bmask.
4967                          */
4968                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4969                                         LOG_DISCOVERY,
4970                                         "2779 Read FCF (x%x) for updating "
4971                                         "roundrobin FCF failover bmask\n",
4972                                         acqe_fip->index);
4973                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4974                 }
4975
4976                 /* If the FCF discovery is in progress, do nothing. */
4977                 spin_lock_irq(&phba->hbalock);
4978                 if (phba->hba_flag & FCF_TS_INPROG) {
4979                         spin_unlock_irq(&phba->hbalock);
4980                         break;
4981                 }
4982                 /* If fast FCF failover rescan event is pending, do nothing */
4983                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4984                         spin_unlock_irq(&phba->hbalock);
4985                         break;
4986                 }
4987
4988                 /* If the FCF has been in discovered state, do nothing. */
4989                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4990                         spin_unlock_irq(&phba->hbalock);
4991                         break;
4992                 }
4993                 spin_unlock_irq(&phba->hbalock);
4994
4995                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4996                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4997                                 "2770 Start FCF table scan per async FCF "
4998                                 "event, evt_tag:x%x, index:x%x\n",
4999                                 acqe_fip->event_tag, acqe_fip->index);
5000                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5001                                                      LPFC_FCOE_FCF_GET_FIRST);
5002                 if (rc)
5003                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5004                                         "2547 Issue FCF scan read FCF mailbox "
5005                                         "command failed (x%x)\n", rc);
5006                 break;
5007
5008         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5009                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5010                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5011                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5012                         acqe_fip->event_tag);
5013                 break;
5014
5015         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5016                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5017                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5018                         "2549 FCF (x%x) disconnected from network, "
5019                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5020                 /*
5021                  * If we are in the middle of FCF failover process, clear
5022                  * the corresponding FCF bit in the roundrobin bitmap.
5023                  */
5024                 spin_lock_irq(&phba->hbalock);
5025                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5026                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5027                         spin_unlock_irq(&phba->hbalock);
5028                         /* Update FLOGI FCF failover eligible FCF bmask */
5029                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5030                         break;
5031                 }
5032                 spin_unlock_irq(&phba->hbalock);
5033
5034                 /* If the event is not for currently used fcf do nothing */
5035                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5036                         break;
5037
5038                 /*
5039                  * Otherwise, request the port to rediscover the entire FCF
5040                  * table for a fast recovery from case that the current FCF
5041                  * is no longer valid as we are not in the middle of FCF
5042                  * failover process already.
5043                  */
5044                 spin_lock_irq(&phba->hbalock);
5045                 /* Mark the fast failover process in progress */
5046                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5047                 spin_unlock_irq(&phba->hbalock);
5048
5049                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5050                                 "2771 Start FCF fast failover process due to "
5051                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5052                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5053                 rc = lpfc_sli4_redisc_fcf_table(phba);
5054                 if (rc) {
5055                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5056                                         LOG_DISCOVERY,
5057                                         "2772 Issue FCF rediscover mabilbox "
5058                                         "command failed, fail through to FCF "
5059                                         "dead event\n");
5060                         spin_lock_irq(&phba->hbalock);
5061                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5062                         spin_unlock_irq(&phba->hbalock);
5063                         /*
5064                          * Last resort will fail over by treating this
5065                          * as a link down to FCF registration.
5066                          */
5067                         lpfc_sli4_fcf_dead_failthrough(phba);
5068                 } else {
5069                         /* Reset FCF roundrobin bmask for new discovery */
5070                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5071                         /*
5072                          * Handling fast FCF failover to a DEAD FCF event is
5073                          * considered equalivant to receiving CVL to all vports.
5074                          */
5075                         lpfc_sli4_perform_all_vport_cvl(phba);
5076                 }
5077                 break;
5078         case LPFC_FIP_EVENT_TYPE_CVL:
5079                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5080                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5081                         "2718 Clear Virtual Link Received for VPI 0x%x"
5082                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5083
5084                 vport = lpfc_find_vport_by_vpid(phba,
5085                                                 acqe_fip->index);
5086                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5087                 if (!ndlp)
5088                         break;
5089                 active_vlink_present = 0;
5090
5091                 vports = lpfc_create_vport_work_array(phba);
5092                 if (vports) {
5093                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5094                                         i++) {
5095                                 if ((!(vports[i]->fc_flag &
5096                                         FC_VPORT_CVL_RCVD)) &&
5097                                         (vports[i]->port_state > LPFC_FDISC)) {
5098                                         active_vlink_present = 1;
5099                                         break;
5100                                 }
5101                         }
5102                         lpfc_destroy_vport_work_array(phba, vports);
5103                 }
5104
5105                 /*
5106                  * Don't re-instantiate if vport is marked for deletion.
5107                  * If we are here first then vport_delete is going to wait
5108                  * for discovery to complete.
5109                  */
5110                 if (!(vport->load_flag & FC_UNLOADING) &&
5111                                         active_vlink_present) {
5112                         /*
5113                          * If there are other active VLinks present,
5114                          * re-instantiate the Vlink using FDISC.
5115                          */
5116                         mod_timer(&ndlp->nlp_delayfunc,
5117                                   jiffies + msecs_to_jiffies(1000));
5118                         shost = lpfc_shost_from_vport(vport);
5119                         spin_lock_irq(shost->host_lock);
5120                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5121                         spin_unlock_irq(shost->host_lock);
5122                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5123                         vport->port_state = LPFC_FDISC;
5124                 } else {
5125                         /*
5126                          * Otherwise, we request port to rediscover
5127                          * the entire FCF table for a fast recovery
5128                          * from possible case that the current FCF
5129                          * is no longer valid if we are not already
5130                          * in the FCF failover process.
5131                          */
5132                         spin_lock_irq(&phba->hbalock);
5133                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5134                                 spin_unlock_irq(&phba->hbalock);
5135                                 break;
5136                         }
5137                         /* Mark the fast failover process in progress */
5138                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5139                         spin_unlock_irq(&phba->hbalock);
5140                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5141                                         LOG_DISCOVERY,
5142                                         "2773 Start FCF failover per CVL, "
5143                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5144                         rc = lpfc_sli4_redisc_fcf_table(phba);
5145                         if (rc) {
5146                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5147                                                 LOG_DISCOVERY,
5148                                                 "2774 Issue FCF rediscover "
5149                                                 "mabilbox command failed, "
5150                                                 "through to CVL event\n");
5151                                 spin_lock_irq(&phba->hbalock);
5152                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5153                                 spin_unlock_irq(&phba->hbalock);
5154                                 /*
5155                                  * Last resort will be re-try on the
5156                                  * the current registered FCF entry.
5157                                  */
5158                                 lpfc_retry_pport_discovery(phba);
5159                         } else
5160                                 /*
5161                                  * Reset FCF roundrobin bmask for new
5162                                  * discovery.
5163                                  */
5164                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5165                 }
5166                 break;
5167         default:
5168                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5169                         "0288 Unknown FCoE event type 0x%x event tag "
5170                         "0x%x\n", event_type, acqe_fip->event_tag);
5171                 break;
5172         }
5173 }
5174
5175 /**
5176  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5177  * @phba: pointer to lpfc hba data structure.
5178  * @acqe_link: pointer to the async dcbx completion queue entry.
5179  *
5180  * This routine is to handle the SLI4 asynchronous dcbx event.
5181  **/
5182 static void
5183 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5184                          struct lpfc_acqe_dcbx *acqe_dcbx)
5185 {
5186         phba->fc_eventTag = acqe_dcbx->event_tag;
5187         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5188                         "0290 The SLI4 DCBX asynchronous event is not "
5189                         "handled yet\n");
5190 }
5191
5192 /**
5193  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5194  * @phba: pointer to lpfc hba data structure.
5195  * @acqe_link: pointer to the async grp5 completion queue entry.
5196  *
5197  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5198  * is an asynchronous notified of a logical link speed change.  The Port
5199  * reports the logical link speed in units of 10Mbps.
5200  **/
5201 static void
5202 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5203                          struct lpfc_acqe_grp5 *acqe_grp5)
5204 {
5205         uint16_t prev_ll_spd;
5206
5207         phba->fc_eventTag = acqe_grp5->event_tag;
5208         phba->fcoe_eventtag = acqe_grp5->event_tag;
5209         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5210         phba->sli4_hba.link_state.logical_speed =
5211                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5212         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5213                         "2789 GRP5 Async Event: Updating logical link speed "
5214                         "from %dMbps to %dMbps\n", prev_ll_spd,
5215                         phba->sli4_hba.link_state.logical_speed);
5216 }
5217
5218 /**
5219  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5220  * @phba: pointer to lpfc hba data structure.
5221  *
5222  * This routine is invoked by the worker thread to process all the pending
5223  * SLI4 asynchronous events.
5224  **/
5225 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5226 {
5227         struct lpfc_cq_event *cq_event;
5228
5229         /* First, declare the async event has been handled */
5230         spin_lock_irq(&phba->hbalock);
5231         phba->hba_flag &= ~ASYNC_EVENT;
5232         spin_unlock_irq(&phba->hbalock);
5233         /* Now, handle all the async events */
5234         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5235                 /* Get the first event from the head of the event queue */
5236                 spin_lock_irq(&phba->hbalock);
5237                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5238                                  cq_event, struct lpfc_cq_event, list);
5239                 spin_unlock_irq(&phba->hbalock);
5240                 /* Process the asynchronous event */
5241                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5242                 case LPFC_TRAILER_CODE_LINK:
5243                         lpfc_sli4_async_link_evt(phba,
5244                                                  &cq_event->cqe.acqe_link);
5245                         break;
5246                 case LPFC_TRAILER_CODE_FCOE:
5247                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5248                         break;
5249                 case LPFC_TRAILER_CODE_DCBX:
5250                         lpfc_sli4_async_dcbx_evt(phba,
5251                                                  &cq_event->cqe.acqe_dcbx);
5252                         break;
5253                 case LPFC_TRAILER_CODE_GRP5:
5254                         lpfc_sli4_async_grp5_evt(phba,
5255                                                  &cq_event->cqe.acqe_grp5);
5256                         break;
5257                 case LPFC_TRAILER_CODE_FC:
5258                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5259                         break;
5260                 case LPFC_TRAILER_CODE_SLI:
5261                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5262                         break;
5263                 default:
5264                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5265                                         "1804 Invalid asynchrous event code: "
5266                                         "x%x\n", bf_get(lpfc_trailer_code,
5267                                         &cq_event->cqe.mcqe_cmpl));
5268                         break;
5269                 }
5270                 /* Free the completion event processed to the free pool */
5271                 lpfc_sli4_cq_event_release(phba, cq_event);
5272         }
5273 }
5274
5275 /**
5276  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5277  * @phba: pointer to lpfc hba data structure.
5278  *
5279  * This routine is invoked by the worker thread to process FCF table
5280  * rediscovery pending completion event.
5281  **/
5282 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5283 {
5284         int rc;
5285
5286         spin_lock_irq(&phba->hbalock);
5287         /* Clear FCF rediscovery timeout event */
5288         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5289         /* Clear driver fast failover FCF record flag */
5290         phba->fcf.failover_rec.flag = 0;
5291         /* Set state for FCF fast failover */
5292         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5293         spin_unlock_irq(&phba->hbalock);
5294
5295         /* Scan FCF table from the first entry to re-discover SAN */
5296         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5297                         "2777 Start post-quiescent FCF table scan\n");
5298         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5299         if (rc)
5300                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5301                                 "2747 Issue FCF scan read FCF mailbox "
5302                                 "command failed 0x%x\n", rc);
5303 }
5304
5305 /**
5306  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5307  * @phba: pointer to lpfc hba data structure.
5308  * @dev_grp: The HBA PCI-Device group number.
5309  *
5310  * This routine is invoked to set up the per HBA PCI-Device group function
5311  * API jump table entries.
5312  *
5313  * Return: 0 if success, otherwise -ENODEV
5314  **/
5315 int
5316 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5317 {
5318         int rc;
5319
5320         /* Set up lpfc PCI-device group */
5321         phba->pci_dev_grp = dev_grp;
5322
5323         /* The LPFC_PCI_DEV_OC uses SLI4 */
5324         if (dev_grp == LPFC_PCI_DEV_OC)
5325                 phba->sli_rev = LPFC_SLI_REV4;
5326
5327         /* Set up device INIT API function jump table */
5328         rc = lpfc_init_api_table_setup(phba, dev_grp);
5329         if (rc)
5330                 return -ENODEV;
5331         /* Set up SCSI API function jump table */
5332         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5333         if (rc)
5334                 return -ENODEV;
5335         /* Set up SLI API function jump table */
5336         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5337         if (rc)
5338                 return -ENODEV;
5339         /* Set up MBOX API function jump table */
5340         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5341         if (rc)
5342                 return -ENODEV;
5343
5344         return 0;
5345 }
5346
5347 /**
5348  * lpfc_log_intr_mode - Log the active interrupt mode
5349  * @phba: pointer to lpfc hba data structure.
5350  * @intr_mode: active interrupt mode adopted.
5351  *
5352  * This routine it invoked to log the currently used active interrupt mode
5353  * to the device.
5354  **/
5355 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5356 {
5357         switch (intr_mode) {
5358         case 0:
5359                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5360                                 "0470 Enable INTx interrupt mode.\n");
5361                 break;
5362         case 1:
5363                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5364                                 "0481 Enabled MSI interrupt mode.\n");
5365                 break;
5366         case 2:
5367                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5368                                 "0480 Enabled MSI-X interrupt mode.\n");
5369                 break;
5370         default:
5371                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5372                                 "0482 Illegal interrupt mode.\n");
5373                 break;
5374         }
5375         return;
5376 }
5377
5378 /**
5379  * lpfc_enable_pci_dev - Enable a generic PCI device.
5380  * @phba: pointer to lpfc hba data structure.
5381  *
5382  * This routine is invoked to enable the PCI device that is common to all
5383  * PCI devices.
5384  *
5385  * Return codes
5386  *      0 - successful
5387  *      other values - error
5388  **/
5389 static int
5390 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5391 {
5392         struct pci_dev *pdev;
5393
5394         /* Obtain PCI device reference */
5395         if (!phba->pcidev)
5396                 goto out_error;
5397         else
5398                 pdev = phba->pcidev;
5399         /* Enable PCI device */
5400         if (pci_enable_device_mem(pdev))
5401                 goto out_error;
5402         /* Request PCI resource for the device */
5403         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5404                 goto out_disable_device;
5405         /* Set up device as PCI master and save state for EEH */
5406         pci_set_master(pdev);
5407         pci_try_set_mwi(pdev);
5408         pci_save_state(pdev);
5409
5410         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5411         if (pci_is_pcie(pdev))
5412                 pdev->needs_freset = 1;
5413
5414         return 0;
5415
5416 out_disable_device:
5417         pci_disable_device(pdev);
5418 out_error:
5419         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5420                         "1401 Failed to enable pci device\n");
5421         return -ENODEV;
5422 }
5423
5424 /**
5425  * lpfc_disable_pci_dev - Disable a generic PCI device.
5426  * @phba: pointer to lpfc hba data structure.
5427  *
5428  * This routine is invoked to disable the PCI device that is common to all
5429  * PCI devices.
5430  **/
5431 static void
5432 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5433 {
5434         struct pci_dev *pdev;
5435
5436         /* Obtain PCI device reference */
5437         if (!phba->pcidev)
5438                 return;
5439         else
5440                 pdev = phba->pcidev;
5441         /* Release PCI resource and disable PCI device */
5442         pci_release_mem_regions(pdev);
5443         pci_disable_device(pdev);
5444
5445         return;
5446 }
5447
5448 /**
5449  * lpfc_reset_hba - Reset a hba
5450  * @phba: pointer to lpfc hba data structure.
5451  *
5452  * This routine is invoked to reset a hba device. It brings the HBA
5453  * offline, performs a board restart, and then brings the board back
5454  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5455  * on outstanding mailbox commands.
5456  **/
5457 void
5458 lpfc_reset_hba(struct lpfc_hba *phba)
5459 {
5460         /* If resets are disabled then set error state and return. */
5461         if (!phba->cfg_enable_hba_reset) {
5462                 phba->link_state = LPFC_HBA_ERROR;
5463                 return;
5464         }
5465         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5466                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5467         else
5468                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5469         lpfc_offline(phba);
5470         lpfc_sli_brdrestart(phba);
5471         lpfc_online(phba);
5472         lpfc_unblock_mgmt_io(phba);
5473 }
5474
5475 /**
5476  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5477  * @phba: pointer to lpfc hba data structure.
5478  *
5479  * This function enables the PCI SR-IOV virtual functions to a physical
5480  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5481  * enable the number of virtual functions to the physical function. As
5482  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5483  * API call does not considered as an error condition for most of the device.
5484  **/
5485 uint16_t
5486 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5487 {
5488         struct pci_dev *pdev = phba->pcidev;
5489         uint16_t nr_virtfn;
5490         int pos;
5491
5492         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5493         if (pos == 0)
5494                 return 0;
5495
5496         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5497         return nr_virtfn;
5498 }
5499
5500 /**
5501  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5502  * @phba: pointer to lpfc hba data structure.
5503  * @nr_vfn: number of virtual functions to be enabled.
5504  *
5505  * This function enables the PCI SR-IOV virtual functions to a physical
5506  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5507  * enable the number of virtual functions to the physical function. As
5508  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5509  * API call does not considered as an error condition for most of the device.
5510  **/
5511 int
5512 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5513 {
5514         struct pci_dev *pdev = phba->pcidev;
5515         uint16_t max_nr_vfn;
5516         int rc;
5517
5518         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5519         if (nr_vfn > max_nr_vfn) {
5520                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5521                                 "3057 Requested vfs (%d) greater than "
5522                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5523                 return -EINVAL;
5524         }
5525
5526         rc = pci_enable_sriov(pdev, nr_vfn);
5527         if (rc) {
5528                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5529                                 "2806 Failed to enable sriov on this device "
5530                                 "with vfn number nr_vf:%d, rc:%d\n",
5531                                 nr_vfn, rc);
5532         } else
5533                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5534                                 "2807 Successful enable sriov on this device "
5535                                 "with vfn number nr_vf:%d\n", nr_vfn);
5536         return rc;
5537 }
5538
5539 /**
5540  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5541  * @phba: pointer to lpfc hba data structure.
5542  *
5543  * This routine is invoked to set up the driver internal resources before the
5544  * device specific resource setup to support the HBA device it attached to.
5545  *
5546  * Return codes
5547  *      0 - successful
5548  *      other values - error
5549  **/
5550 static int
5551 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5552 {
5553         struct lpfc_sli *psli = &phba->sli;
5554
5555         /*
5556          * Driver resources common to all SLI revisions
5557          */
5558         atomic_set(&phba->fast_event_count, 0);
5559         spin_lock_init(&phba->hbalock);
5560
5561         /* Initialize ndlp management spinlock */
5562         spin_lock_init(&phba->ndlp_lock);
5563
5564         INIT_LIST_HEAD(&phba->port_list);
5565         INIT_LIST_HEAD(&phba->work_list);
5566         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5567
5568         /* Initialize the wait queue head for the kernel thread */
5569         init_waitqueue_head(&phba->work_waitq);
5570
5571         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5572                         "1403 Protocols supported %s %s %s\n",
5573                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5574                                 "SCSI" : " "),
5575                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5576                                 "NVME" : " "),
5577                         (phba->nvmet_support ? "NVMET" : " "));
5578
5579         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5580                 /* Initialize the scsi buffer list used by driver for scsi IO */
5581                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5582                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5583                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5584                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5585         }
5586
5587         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5588                 (phba->nvmet_support == 0)) {
5589                 /* Initialize the NVME buffer list used by driver for NVME IO */
5590                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5591                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5592                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5593                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5594         }
5595
5596         /* Initialize the fabric iocb list */
5597         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5598
5599         /* Initialize list to save ELS buffers */
5600         INIT_LIST_HEAD(&phba->elsbuf);
5601
5602         /* Initialize FCF connection rec list */
5603         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5604
5605         /* Initialize OAS configuration list */
5606         spin_lock_init(&phba->devicelock);
5607         INIT_LIST_HEAD(&phba->luns);
5608
5609         /* MBOX heartbeat timer */
5610         setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
5611         /* Fabric block timer */
5612         setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
5613                         (unsigned long)phba);
5614         /* EA polling mode timer */
5615         setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
5616                         (unsigned long)phba);
5617         /* Heartbeat timer */
5618         setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
5619
5620         return 0;
5621 }
5622
5623 /**
5624  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5625  * @phba: pointer to lpfc hba data structure.
5626  *
5627  * This routine is invoked to set up the driver internal resources specific to
5628  * support the SLI-3 HBA device it attached to.
5629  *
5630  * Return codes
5631  * 0 - successful
5632  * other values - error
5633  **/
5634 static int
5635 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5636 {
5637         int rc;
5638
5639         /*
5640          * Initialize timers used by driver
5641          */
5642
5643         /* FCP polling mode timer */
5644         setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
5645                         (unsigned long)phba);
5646
5647         /* Host attention work mask setup */
5648         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5649         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5650
5651         /* Get all the module params for configuring this host */
5652         lpfc_get_cfgparam(phba);
5653         /* Set up phase-1 common device driver resources */
5654
5655         rc = lpfc_setup_driver_resource_phase1(phba);
5656         if (rc)
5657                 return -ENODEV;
5658
5659         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5660                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5661                 /* check for menlo minimum sg count */
5662                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5663                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5664         }
5665
5666         if (!phba->sli.sli3_ring)
5667                 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5668                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5669         if (!phba->sli.sli3_ring)
5670                 return -ENOMEM;
5671
5672         /*
5673          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5674          * used to create the sg_dma_buf_pool must be dynamically calculated.
5675          */
5676
5677         /* Initialize the host templates the configured values. */
5678         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5679         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5680         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5681
5682         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5683         if (phba->cfg_enable_bg) {
5684                 /*
5685                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5686                  * the FCP rsp, and a BDE for each. Sice we have no control
5687                  * over how many protection data segments the SCSI Layer
5688                  * will hand us (ie: there could be one for every block
5689                  * in the IO), we just allocate enough BDEs to accomidate
5690                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5691                  * minimize the risk of running out.
5692                  */
5693                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5694                         sizeof(struct fcp_rsp) +
5695                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5696
5697                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5698                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5699
5700                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5701                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5702         } else {
5703                 /*
5704                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5705                  * the FCP rsp, a BDE for each, and a BDE for up to
5706                  * cfg_sg_seg_cnt data segments.
5707                  */
5708                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5709                         sizeof(struct fcp_rsp) +
5710                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5711
5712                 /* Total BDEs in BPL for scsi_sg_list */
5713                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5714         }
5715
5716         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5717                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5718                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5719                         phba->cfg_total_seg_cnt);
5720
5721         phba->max_vpi = LPFC_MAX_VPI;
5722         /* This will be set to correct value after config_port mbox */
5723         phba->max_vports = 0;
5724
5725         /*
5726          * Initialize the SLI Layer to run with lpfc HBAs.
5727          */
5728         lpfc_sli_setup(phba);
5729         lpfc_sli_queue_init(phba);
5730
5731         /* Allocate device driver memory */
5732         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5733                 return -ENOMEM;
5734
5735         /*
5736          * Enable sr-iov virtual functions if supported and configured
5737          * through the module parameter.
5738          */
5739         if (phba->cfg_sriov_nr_virtfn > 0) {
5740                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5741                                                  phba->cfg_sriov_nr_virtfn);
5742                 if (rc) {
5743                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5744                                         "2808 Requested number of SR-IOV "
5745                                         "virtual functions (%d) is not "
5746                                         "supported\n",
5747                                         phba->cfg_sriov_nr_virtfn);
5748                         phba->cfg_sriov_nr_virtfn = 0;
5749                 }
5750         }
5751
5752         return 0;
5753 }
5754
5755 /**
5756  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5757  * @phba: pointer to lpfc hba data structure.
5758  *
5759  * This routine is invoked to unset the driver internal resources set up
5760  * specific for supporting the SLI-3 HBA device it attached to.
5761  **/
5762 static void
5763 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5764 {
5765         /* Free device driver memory allocated */
5766         lpfc_mem_free_all(phba);
5767
5768         return;
5769 }
5770
5771 /**
5772  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5773  * @phba: pointer to lpfc hba data structure.
5774  *
5775  * This routine is invoked to set up the driver internal resources specific to
5776  * support the SLI-4 HBA device it attached to.
5777  *
5778  * Return codes
5779  *      0 - successful
5780  *      other values - error
5781  **/
5782 static int
5783 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5784 {
5785         LPFC_MBOXQ_t *mboxq;
5786         MAILBOX_t *mb;
5787         int rc, i, max_buf_size;
5788         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5789         struct lpfc_mqe *mqe;
5790         int longs;
5791         int fof_vectors = 0;
5792         uint64_t wwn;
5793
5794         phba->sli4_hba.num_online_cpu = num_online_cpus();
5795         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5796         phba->sli4_hba.curr_disp_cpu = 0;
5797
5798         /* Get all the module params for configuring this host */
5799         lpfc_get_cfgparam(phba);
5800
5801         /* Set up phase-1 common device driver resources */
5802         rc = lpfc_setup_driver_resource_phase1(phba);
5803         if (rc)
5804                 return -ENODEV;
5805
5806         /* Before proceed, wait for POST done and device ready */
5807         rc = lpfc_sli4_post_status_check(phba);
5808         if (rc)
5809                 return -ENODEV;
5810
5811         /*
5812          * Initialize timers used by driver
5813          */
5814
5815         setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
5816
5817         /* FCF rediscover timer */
5818         setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
5819                         (unsigned long)phba);
5820
5821         /*
5822          * Control structure for handling external multi-buffer mailbox
5823          * command pass-through.
5824          */
5825         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5826                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5827         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5828
5829         phba->max_vpi = LPFC_MAX_VPI;
5830
5831         /* This will be set to correct value after the read_config mbox */
5832         phba->max_vports = 0;
5833
5834         /* Program the default value of vlan_id and fc_map */
5835         phba->valid_vlan = 0;
5836         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5837         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5838         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5839
5840         /*
5841          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5842          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5843          * The WQ create will allocate the ring.
5844          */
5845
5846         /*
5847          * It doesn't matter what family our adapter is in, we are
5848          * limited to 2 Pages, 512 SGEs, for our SGL.
5849          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5850          */
5851         max_buf_size = (2 * SLI4_PAGE_SIZE);
5852         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5853                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5854
5855         /*
5856          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5857          * used to create the sg_dma_buf_pool must be calculated.
5858          */
5859         if (phba->cfg_enable_bg) {
5860                 /*
5861                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5862                  * the FCP rsp, and a SGE. Sice we have no control
5863                  * over how many protection segments the SCSI Layer
5864                  * will hand us (ie: there could be one for every block
5865                  * in the IO), just allocate enough SGEs to accomidate
5866                  * our max amount and we need to limit lpfc_sg_seg_cnt
5867                  * to minimize the risk of running out.
5868                  */
5869                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5870                                 sizeof(struct fcp_rsp) + max_buf_size;
5871
5872                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5873                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5874
5875                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5876                         phba->cfg_sg_seg_cnt =
5877                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5878         } else {
5879                 /*
5880                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5881                  * the FCP rsp, a SGE for each, and a SGE for up to
5882                  * cfg_sg_seg_cnt data segments.
5883                  */
5884                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5885                                 sizeof(struct fcp_rsp) +
5886                                 ((phba->cfg_sg_seg_cnt + 2) *
5887                                 sizeof(struct sli4_sge));
5888
5889                 /* Total SGEs for scsi_sg_list */
5890                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5891
5892                 /*
5893                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5894                  * need to post 1 page for the SGL.
5895                  */
5896         }
5897
5898         /* Initialize the host templates with the updated values. */
5899         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5900         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5901         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5902
5903         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5904                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5905         else
5906                 phba->cfg_sg_dma_buf_size =
5907                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5908
5909         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5910                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5911                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5912                         phba->cfg_total_seg_cnt);
5913
5914         /* Initialize buffer queue management fields */
5915         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5916         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5917         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5918
5919         /*
5920          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5921          */
5922         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5923                 /* Initialize the Abort scsi buffer list used by driver */
5924                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5925                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5926         }
5927
5928         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5929                 /* Initialize the Abort nvme buffer list used by driver */
5930                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5931                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5932                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5933                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_ctx_get_list);
5934                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_ctx_put_list);
5935                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
5936
5937                 /* Fast-path XRI aborted CQ Event work queue list */
5938                 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5939         }
5940
5941         /* This abort list used by worker thread */
5942         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5943         spin_lock_init(&phba->sli4_hba.nvmet_ctx_get_lock);
5944         spin_lock_init(&phba->sli4_hba.nvmet_ctx_put_lock);
5945         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
5946
5947         /*
5948          * Initialize driver internal slow-path work queues
5949          */
5950
5951         /* Driver internel slow-path CQ Event pool */
5952         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5953         /* Response IOCB work queue list */
5954         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5955         /* Asynchronous event CQ Event work queue list */
5956         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5957         /* Fast-path XRI aborted CQ Event work queue list */
5958         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5959         /* Slow-path XRI aborted CQ Event work queue list */
5960         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5961         /* Receive queue CQ Event work queue list */
5962         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5963
5964         /* Initialize extent block lists. */
5965         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5966         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5967         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5968         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5969
5970         /* Initialize mboxq lists. If the early init routines fail
5971          * these lists need to be correctly initialized.
5972          */
5973         INIT_LIST_HEAD(&phba->sli.mboxq);
5974         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5975
5976         /* initialize optic_state to 0xFF */
5977         phba->sli4_hba.lnk_info.optic_state = 0xff;
5978
5979         /* Allocate device driver memory */
5980         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5981         if (rc)
5982                 return -ENOMEM;
5983
5984         /* IF Type 2 ports get initialized now. */
5985         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5986             LPFC_SLI_INTF_IF_TYPE_2) {
5987                 rc = lpfc_pci_function_reset(phba);
5988                 if (unlikely(rc)) {
5989                         rc = -ENODEV;
5990                         goto out_free_mem;
5991                 }
5992                 phba->temp_sensor_support = 1;
5993         }
5994
5995         /* Create the bootstrap mailbox command */
5996         rc = lpfc_create_bootstrap_mbox(phba);
5997         if (unlikely(rc))
5998                 goto out_free_mem;
5999
6000         /* Set up the host's endian order with the device. */
6001         rc = lpfc_setup_endian_order(phba);
6002         if (unlikely(rc))
6003                 goto out_free_bsmbx;
6004
6005         /* Set up the hba's configuration parameters. */
6006         rc = lpfc_sli4_read_config(phba);
6007         if (unlikely(rc))
6008                 goto out_free_bsmbx;
6009         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6010         if (unlikely(rc))
6011                 goto out_free_bsmbx;
6012
6013         /* IF Type 0 ports get initialized now. */
6014         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6015             LPFC_SLI_INTF_IF_TYPE_0) {
6016                 rc = lpfc_pci_function_reset(phba);
6017                 if (unlikely(rc))
6018                         goto out_free_bsmbx;
6019         }
6020
6021         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6022                                                        GFP_KERNEL);
6023         if (!mboxq) {
6024                 rc = -ENOMEM;
6025                 goto out_free_bsmbx;
6026         }
6027
6028         /* Check for NVMET being configured */
6029         phba->nvmet_support = 0;
6030         if (lpfc_enable_nvmet_cnt) {
6031
6032                 /* First get WWN of HBA instance */
6033                 lpfc_read_nv(phba, mboxq);
6034                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6035                 if (rc != MBX_SUCCESS) {
6036                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6037                                         "6016 Mailbox failed , mbxCmd x%x "
6038                                         "READ_NV, mbxStatus x%x\n",
6039                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6040                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6041                         mempool_free(mboxq, phba->mbox_mem_pool);
6042                         rc = -EIO;
6043                         goto out_free_bsmbx;
6044                 }
6045                 mb = &mboxq->u.mb;
6046                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6047                        sizeof(uint64_t));
6048                 wwn = cpu_to_be64(wwn);
6049                 phba->sli4_hba.wwnn.u.name = wwn;
6050                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6051                        sizeof(uint64_t));
6052                 /* wwn is WWPN of HBA instance */
6053                 wwn = cpu_to_be64(wwn);
6054                 phba->sli4_hba.wwpn.u.name = wwn;
6055
6056                 /* Check to see if it matches any module parameter */
6057                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6058                         if (wwn == lpfc_enable_nvmet[i]) {
6059 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6060                                 if (lpfc_nvmet_mem_alloc(phba))
6061                                         break;
6062
6063                                 phba->nvmet_support = 1; /* a match */
6064
6065                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6066                                                 "6017 NVME Target %016llx\n",
6067                                                 wwn);
6068 #else
6069                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6070                                                 "6021 Can't enable NVME Target."
6071                                                 " NVME_TARGET_FC infrastructure"
6072                                                 " is not in kernel\n");
6073 #endif
6074                                 break;
6075                         }
6076                 }
6077         }
6078
6079         lpfc_nvme_mod_param_dep(phba);
6080
6081         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6082         lpfc_supported_pages(mboxq);
6083         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6084         if (!rc) {
6085                 mqe = &mboxq->u.mqe;
6086                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6087                        LPFC_MAX_SUPPORTED_PAGES);
6088                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6089                         switch (pn_page[i]) {
6090                         case LPFC_SLI4_PARAMETERS:
6091                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6092                                 break;
6093                         default:
6094                                 break;
6095                         }
6096                 }
6097                 /* Read the port's SLI4 Parameters capabilities if supported. */
6098                 if (phba->sli4_hba.pc_sli4_params.supported)
6099                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6100                 if (rc) {
6101                         mempool_free(mboxq, phba->mbox_mem_pool);
6102                         rc = -EIO;
6103                         goto out_free_bsmbx;
6104                 }
6105         }
6106
6107         /*
6108          * Get sli4 parameters that override parameters from Port capabilities.
6109          * If this call fails, it isn't critical unless the SLI4 parameters come
6110          * back in conflict.
6111          */
6112         rc = lpfc_get_sli4_parameters(phba, mboxq);
6113         if (rc) {
6114                 if (phba->sli4_hba.extents_in_use &&
6115                     phba->sli4_hba.rpi_hdrs_in_use) {
6116                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6117                                 "2999 Unsupported SLI4 Parameters "
6118                                 "Extents and RPI headers enabled.\n");
6119                 }
6120                 mempool_free(mboxq, phba->mbox_mem_pool);
6121                 goto out_free_bsmbx;
6122         }
6123
6124         mempool_free(mboxq, phba->mbox_mem_pool);
6125
6126         /* Verify OAS is supported */
6127         lpfc_sli4_oas_verify(phba);
6128         if (phba->cfg_fof)
6129                 fof_vectors = 1;
6130
6131         /* Verify all the SLI4 queues */
6132         rc = lpfc_sli4_queue_verify(phba);
6133         if (rc)
6134                 goto out_free_bsmbx;
6135
6136         /* Create driver internal CQE event pool */
6137         rc = lpfc_sli4_cq_event_pool_create(phba);
6138         if (rc)
6139                 goto out_free_bsmbx;
6140
6141         /* Initialize sgl lists per host */
6142         lpfc_init_sgl_list(phba);
6143
6144         /* Allocate and initialize active sgl array */
6145         rc = lpfc_init_active_sgl_array(phba);
6146         if (rc) {
6147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6148                                 "1430 Failed to initialize sgl list.\n");
6149                 goto out_destroy_cq_event_pool;
6150         }
6151         rc = lpfc_sli4_init_rpi_hdrs(phba);
6152         if (rc) {
6153                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6154                                 "1432 Failed to initialize rpi headers.\n");
6155                 goto out_free_active_sgl;
6156         }
6157
6158         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6159         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6160         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6161                                          GFP_KERNEL);
6162         if (!phba->fcf.fcf_rr_bmask) {
6163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6164                                 "2759 Failed allocate memory for FCF round "
6165                                 "robin failover bmask\n");
6166                 rc = -ENOMEM;
6167                 goto out_remove_rpi_hdrs;
6168         }
6169
6170         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6171                                                 sizeof(struct lpfc_hba_eq_hdl),
6172                                                 GFP_KERNEL);
6173         if (!phba->sli4_hba.hba_eq_hdl) {
6174                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6175                                 "2572 Failed allocate memory for "
6176                                 "fast-path per-EQ handle array\n");
6177                 rc = -ENOMEM;
6178                 goto out_free_fcf_rr_bmask;
6179         }
6180
6181         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6182                                         sizeof(struct lpfc_vector_map_info),
6183                                         GFP_KERNEL);
6184         if (!phba->sli4_hba.cpu_map) {
6185                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6186                                 "3327 Failed allocate memory for msi-x "
6187                                 "interrupt vector mapping\n");
6188                 rc = -ENOMEM;
6189                 goto out_free_hba_eq_hdl;
6190         }
6191         if (lpfc_used_cpu == NULL) {
6192                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6193                                                 GFP_KERNEL);
6194                 if (!lpfc_used_cpu) {
6195                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6196                                         "3335 Failed allocate memory for msi-x "
6197                                         "interrupt vector mapping\n");
6198                         kfree(phba->sli4_hba.cpu_map);
6199                         rc = -ENOMEM;
6200                         goto out_free_hba_eq_hdl;
6201                 }
6202                 for (i = 0; i < lpfc_present_cpu; i++)
6203                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6204         }
6205
6206         /*
6207          * Enable sr-iov virtual functions if supported and configured
6208          * through the module parameter.
6209          */
6210         if (phba->cfg_sriov_nr_virtfn > 0) {
6211                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6212                                                  phba->cfg_sriov_nr_virtfn);
6213                 if (rc) {
6214                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6215                                         "3020 Requested number of SR-IOV "
6216                                         "virtual functions (%d) is not "
6217                                         "supported\n",
6218                                         phba->cfg_sriov_nr_virtfn);
6219                         phba->cfg_sriov_nr_virtfn = 0;
6220                 }
6221         }
6222
6223         return 0;
6224
6225 out_free_hba_eq_hdl:
6226         kfree(phba->sli4_hba.hba_eq_hdl);
6227 out_free_fcf_rr_bmask:
6228         kfree(phba->fcf.fcf_rr_bmask);
6229 out_remove_rpi_hdrs:
6230         lpfc_sli4_remove_rpi_hdrs(phba);
6231 out_free_active_sgl:
6232         lpfc_free_active_sgl(phba);
6233 out_destroy_cq_event_pool:
6234         lpfc_sli4_cq_event_pool_destroy(phba);
6235 out_free_bsmbx:
6236         lpfc_destroy_bootstrap_mbox(phba);
6237 out_free_mem:
6238         lpfc_mem_free(phba);
6239         return rc;
6240 }
6241
6242 /**
6243  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6244  * @phba: pointer to lpfc hba data structure.
6245  *
6246  * This routine is invoked to unset the driver internal resources set up
6247  * specific for supporting the SLI-4 HBA device it attached to.
6248  **/
6249 static void
6250 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6251 {
6252         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6253
6254         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6255         kfree(phba->sli4_hba.cpu_map);
6256         phba->sli4_hba.num_present_cpu = 0;
6257         phba->sli4_hba.num_online_cpu = 0;
6258         phba->sli4_hba.curr_disp_cpu = 0;
6259
6260         /* Free memory allocated for fast-path work queue handles */
6261         kfree(phba->sli4_hba.hba_eq_hdl);
6262
6263         /* Free the allocated rpi headers. */
6264         lpfc_sli4_remove_rpi_hdrs(phba);
6265         lpfc_sli4_remove_rpis(phba);
6266
6267         /* Free eligible FCF index bmask */
6268         kfree(phba->fcf.fcf_rr_bmask);
6269
6270         /* Free the ELS sgl list */
6271         lpfc_free_active_sgl(phba);
6272         lpfc_free_els_sgl_list(phba);
6273         lpfc_free_nvmet_sgl_list(phba);
6274
6275         /* Free the completion queue EQ event pool */
6276         lpfc_sli4_cq_event_release_all(phba);
6277         lpfc_sli4_cq_event_pool_destroy(phba);
6278
6279         /* Release resource identifiers. */
6280         lpfc_sli4_dealloc_resource_identifiers(phba);
6281
6282         /* Free the bsmbx region. */
6283         lpfc_destroy_bootstrap_mbox(phba);
6284
6285         /* Free the SLI Layer memory with SLI4 HBAs */
6286         lpfc_mem_free_all(phba);
6287
6288         /* Free the current connect table */
6289         list_for_each_entry_safe(conn_entry, next_conn_entry,
6290                 &phba->fcf_conn_rec_list, list) {
6291                 list_del_init(&conn_entry->list);
6292                 kfree(conn_entry);
6293         }
6294
6295         return;
6296 }
6297
6298 /**
6299  * lpfc_init_api_table_setup - Set up init api function jump table
6300  * @phba: The hba struct for which this call is being executed.
6301  * @dev_grp: The HBA PCI-Device group number.
6302  *
6303  * This routine sets up the device INIT interface API function jump table
6304  * in @phba struct.
6305  *
6306  * Returns: 0 - success, -ENODEV - failure.
6307  **/
6308 int
6309 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6310 {
6311         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6312         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6313         phba->lpfc_selective_reset = lpfc_selective_reset;
6314         switch (dev_grp) {
6315         case LPFC_PCI_DEV_LP:
6316                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6317                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6318                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6319                 break;
6320         case LPFC_PCI_DEV_OC:
6321                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6322                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6323                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6324                 break;
6325         default:
6326                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6327                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6328                                 dev_grp);
6329                 return -ENODEV;
6330                 break;
6331         }
6332         return 0;
6333 }
6334
6335 /**
6336  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6337  * @phba: pointer to lpfc hba data structure.
6338  *
6339  * This routine is invoked to set up the driver internal resources after the
6340  * device specific resource setup to support the HBA device it attached to.
6341  *
6342  * Return codes
6343  *      0 - successful
6344  *      other values - error
6345  **/
6346 static int
6347 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6348 {
6349         int error;
6350
6351         /* Startup the kernel thread for this host adapter. */
6352         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6353                                           "lpfc_worker_%d", phba->brd_no);
6354         if (IS_ERR(phba->worker_thread)) {
6355                 error = PTR_ERR(phba->worker_thread);
6356                 return error;
6357         }
6358
6359         return 0;
6360 }
6361
6362 /**
6363  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6364  * @phba: pointer to lpfc hba data structure.
6365  *
6366  * This routine is invoked to unset the driver internal resources set up after
6367  * the device specific resource setup for supporting the HBA device it
6368  * attached to.
6369  **/
6370 static void
6371 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6372 {
6373         /* Stop kernel worker thread */
6374         kthread_stop(phba->worker_thread);
6375 }
6376
6377 /**
6378  * lpfc_free_iocb_list - Free iocb list.
6379  * @phba: pointer to lpfc hba data structure.
6380  *
6381  * This routine is invoked to free the driver's IOCB list and memory.
6382  **/
6383 void
6384 lpfc_free_iocb_list(struct lpfc_hba *phba)
6385 {
6386         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6387
6388         spin_lock_irq(&phba->hbalock);
6389         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6390                                  &phba->lpfc_iocb_list, list) {
6391                 list_del(&iocbq_entry->list);
6392                 kfree(iocbq_entry);
6393                 phba->total_iocbq_bufs--;
6394         }
6395         spin_unlock_irq(&phba->hbalock);
6396
6397         return;
6398 }
6399
6400 /**
6401  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6402  * @phba: pointer to lpfc hba data structure.
6403  *
6404  * This routine is invoked to allocate and initizlize the driver's IOCB
6405  * list and set up the IOCB tag array accordingly.
6406  *
6407  * Return codes
6408  *      0 - successful
6409  *      other values - error
6410  **/
6411 int
6412 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6413 {
6414         struct lpfc_iocbq *iocbq_entry = NULL;
6415         uint16_t iotag;
6416         int i;
6417
6418         /* Initialize and populate the iocb list per host.  */
6419         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6420         for (i = 0; i < iocb_count; i++) {
6421                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6422                 if (iocbq_entry == NULL) {
6423                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6424                                 "expected %d count. Unloading driver.\n",
6425                                 __func__, i, LPFC_IOCB_LIST_CNT);
6426                         goto out_free_iocbq;
6427                 }
6428
6429                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6430                 if (iotag == 0) {
6431                         kfree(iocbq_entry);
6432                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6433                                 "Unloading driver.\n", __func__);
6434                         goto out_free_iocbq;
6435                 }
6436                 iocbq_entry->sli4_lxritag = NO_XRI;
6437                 iocbq_entry->sli4_xritag = NO_XRI;
6438
6439                 spin_lock_irq(&phba->hbalock);
6440                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6441                 phba->total_iocbq_bufs++;
6442                 spin_unlock_irq(&phba->hbalock);
6443         }
6444
6445         return 0;
6446
6447 out_free_iocbq:
6448         lpfc_free_iocb_list(phba);
6449
6450         return -ENOMEM;
6451 }
6452
6453 /**
6454  * lpfc_free_sgl_list - Free a given sgl list.
6455  * @phba: pointer to lpfc hba data structure.
6456  * @sglq_list: pointer to the head of sgl list.
6457  *
6458  * This routine is invoked to free a give sgl list and memory.
6459  **/
6460 void
6461 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6462 {
6463         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6464
6465         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6466                 list_del(&sglq_entry->list);
6467                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6468                 kfree(sglq_entry);
6469         }
6470 }
6471
6472 /**
6473  * lpfc_free_els_sgl_list - Free els sgl list.
6474  * @phba: pointer to lpfc hba data structure.
6475  *
6476  * This routine is invoked to free the driver's els sgl list and memory.
6477  **/
6478 static void
6479 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6480 {
6481         LIST_HEAD(sglq_list);
6482
6483         /* Retrieve all els sgls from driver list */
6484         spin_lock_irq(&phba->hbalock);
6485         spin_lock(&phba->sli4_hba.sgl_list_lock);
6486         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6487         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6488         spin_unlock_irq(&phba->hbalock);
6489
6490         /* Now free the sgl list */
6491         lpfc_free_sgl_list(phba, &sglq_list);
6492 }
6493
6494 /**
6495  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6496  * @phba: pointer to lpfc hba data structure.
6497  *
6498  * This routine is invoked to free the driver's nvmet sgl list and memory.
6499  **/
6500 static void
6501 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6502 {
6503         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6504         LIST_HEAD(sglq_list);
6505
6506         /* Retrieve all nvmet sgls from driver list */
6507         spin_lock_irq(&phba->hbalock);
6508         spin_lock(&phba->sli4_hba.sgl_list_lock);
6509         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6510         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6511         spin_unlock_irq(&phba->hbalock);
6512
6513         /* Now free the sgl list */
6514         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6515                 list_del(&sglq_entry->list);
6516                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6517                 kfree(sglq_entry);
6518         }
6519 }
6520
6521 /**
6522  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6523  * @phba: pointer to lpfc hba data structure.
6524  *
6525  * This routine is invoked to allocate the driver's active sgl memory.
6526  * This array will hold the sglq_entry's for active IOs.
6527  **/
6528 static int
6529 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6530 {
6531         int size;
6532         size = sizeof(struct lpfc_sglq *);
6533         size *= phba->sli4_hba.max_cfg_param.max_xri;
6534
6535         phba->sli4_hba.lpfc_sglq_active_list =
6536                 kzalloc(size, GFP_KERNEL);
6537         if (!phba->sli4_hba.lpfc_sglq_active_list)
6538                 return -ENOMEM;
6539         return 0;
6540 }
6541
6542 /**
6543  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6544  * @phba: pointer to lpfc hba data structure.
6545  *
6546  * This routine is invoked to walk through the array of active sglq entries
6547  * and free all of the resources.
6548  * This is just a place holder for now.
6549  **/
6550 static void
6551 lpfc_free_active_sgl(struct lpfc_hba *phba)
6552 {
6553         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6554 }
6555
6556 /**
6557  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6558  * @phba: pointer to lpfc hba data structure.
6559  *
6560  * This routine is invoked to allocate and initizlize the driver's sgl
6561  * list and set up the sgl xritag tag array accordingly.
6562  *
6563  **/
6564 static void
6565 lpfc_init_sgl_list(struct lpfc_hba *phba)
6566 {
6567         /* Initialize and populate the sglq list per host/VF. */
6568         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6569         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6570         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6571         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6572
6573         /* els xri-sgl book keeping */
6574         phba->sli4_hba.els_xri_cnt = 0;
6575
6576         /* scsi xri-buffer book keeping */
6577         phba->sli4_hba.scsi_xri_cnt = 0;
6578
6579         /* nvme xri-buffer book keeping */
6580         phba->sli4_hba.nvme_xri_cnt = 0;
6581 }
6582
6583 /**
6584  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6585  * @phba: pointer to lpfc hba data structure.
6586  *
6587  * This routine is invoked to post rpi header templates to the
6588  * port for those SLI4 ports that do not support extents.  This routine
6589  * posts a PAGE_SIZE memory region to the port to hold up to
6590  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6591  * and should be called only when interrupts are disabled.
6592  *
6593  * Return codes
6594  *      0 - successful
6595  *      -ERROR - otherwise.
6596  **/
6597 int
6598 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6599 {
6600         int rc = 0;
6601         struct lpfc_rpi_hdr *rpi_hdr;
6602
6603         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6604         if (!phba->sli4_hba.rpi_hdrs_in_use)
6605                 return rc;
6606         if (phba->sli4_hba.extents_in_use)
6607                 return -EIO;
6608
6609         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6610         if (!rpi_hdr) {
6611                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6612                                 "0391 Error during rpi post operation\n");
6613                 lpfc_sli4_remove_rpis(phba);
6614                 rc = -ENODEV;
6615         }
6616
6617         return rc;
6618 }
6619
6620 /**
6621  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6622  * @phba: pointer to lpfc hba data structure.
6623  *
6624  * This routine is invoked to allocate a single 4KB memory region to
6625  * support rpis and stores them in the phba.  This single region
6626  * provides support for up to 64 rpis.  The region is used globally
6627  * by the device.
6628  *
6629  * Returns:
6630  *   A valid rpi hdr on success.
6631  *   A NULL pointer on any failure.
6632  **/
6633 struct lpfc_rpi_hdr *
6634 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6635 {
6636         uint16_t rpi_limit, curr_rpi_range;
6637         struct lpfc_dmabuf *dmabuf;
6638         struct lpfc_rpi_hdr *rpi_hdr;
6639
6640         /*
6641          * If the SLI4 port supports extents, posting the rpi header isn't
6642          * required.  Set the expected maximum count and let the actual value
6643          * get set when extents are fully allocated.
6644          */
6645         if (!phba->sli4_hba.rpi_hdrs_in_use)
6646                 return NULL;
6647         if (phba->sli4_hba.extents_in_use)
6648                 return NULL;
6649
6650         /* The limit on the logical index is just the max_rpi count. */
6651         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6652
6653         spin_lock_irq(&phba->hbalock);
6654         /*
6655          * Establish the starting RPI in this header block.  The starting
6656          * rpi is normalized to a zero base because the physical rpi is
6657          * port based.
6658          */
6659         curr_rpi_range = phba->sli4_hba.next_rpi;
6660         spin_unlock_irq(&phba->hbalock);
6661
6662         /* Reached full RPI range */
6663         if (curr_rpi_range == rpi_limit)
6664                 return NULL;
6665
6666         /*
6667          * First allocate the protocol header region for the port.  The
6668          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6669          */
6670         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6671         if (!dmabuf)
6672                 return NULL;
6673
6674         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6675                                            LPFC_HDR_TEMPLATE_SIZE,
6676                                            &dmabuf->phys, GFP_KERNEL);
6677         if (!dmabuf->virt) {
6678                 rpi_hdr = NULL;
6679                 goto err_free_dmabuf;
6680         }
6681
6682         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6683                 rpi_hdr = NULL;
6684                 goto err_free_coherent;
6685         }
6686
6687         /* Save the rpi header data for cleanup later. */
6688         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6689         if (!rpi_hdr)
6690                 goto err_free_coherent;
6691
6692         rpi_hdr->dmabuf = dmabuf;
6693         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6694         rpi_hdr->page_count = 1;
6695         spin_lock_irq(&phba->hbalock);
6696
6697         /* The rpi_hdr stores the logical index only. */
6698         rpi_hdr->start_rpi = curr_rpi_range;
6699         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6700         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6701
6702         spin_unlock_irq(&phba->hbalock);
6703         return rpi_hdr;
6704
6705  err_free_coherent:
6706         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6707                           dmabuf->virt, dmabuf->phys);
6708  err_free_dmabuf:
6709         kfree(dmabuf);
6710         return NULL;
6711 }
6712
6713 /**
6714  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6715  * @phba: pointer to lpfc hba data structure.
6716  *
6717  * This routine is invoked to remove all memory resources allocated
6718  * to support rpis for SLI4 ports not supporting extents. This routine
6719  * presumes the caller has released all rpis consumed by fabric or port
6720  * logins and is prepared to have the header pages removed.
6721  **/
6722 void
6723 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6724 {
6725         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6726
6727         if (!phba->sli4_hba.rpi_hdrs_in_use)
6728                 goto exit;
6729
6730         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6731                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6732                 list_del(&rpi_hdr->list);
6733                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6734                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6735                 kfree(rpi_hdr->dmabuf);
6736                 kfree(rpi_hdr);
6737         }
6738  exit:
6739         /* There are no rpis available to the port now. */
6740         phba->sli4_hba.next_rpi = 0;
6741 }
6742
6743 /**
6744  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6745  * @pdev: pointer to pci device data structure.
6746  *
6747  * This routine is invoked to allocate the driver hba data structure for an
6748  * HBA device. If the allocation is successful, the phba reference to the
6749  * PCI device data structure is set.
6750  *
6751  * Return codes
6752  *      pointer to @phba - successful
6753  *      NULL - error
6754  **/
6755 static struct lpfc_hba *
6756 lpfc_hba_alloc(struct pci_dev *pdev)
6757 {
6758         struct lpfc_hba *phba;
6759
6760         /* Allocate memory for HBA structure */
6761         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6762         if (!phba) {
6763                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6764                 return NULL;
6765         }
6766
6767         /* Set reference to PCI device in HBA structure */
6768         phba->pcidev = pdev;
6769
6770         /* Assign an unused board number */
6771         phba->brd_no = lpfc_get_instance();
6772         if (phba->brd_no < 0) {
6773                 kfree(phba);
6774                 return NULL;
6775         }
6776         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6777
6778         spin_lock_init(&phba->ct_ev_lock);
6779         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6780
6781         return phba;
6782 }
6783
6784 /**
6785  * lpfc_hba_free - Free driver hba data structure with a device.
6786  * @phba: pointer to lpfc hba data structure.
6787  *
6788  * This routine is invoked to free the driver hba data structure with an
6789  * HBA device.
6790  **/
6791 static void
6792 lpfc_hba_free(struct lpfc_hba *phba)
6793 {
6794         /* Release the driver assigned board number */
6795         idr_remove(&lpfc_hba_index, phba->brd_no);
6796
6797         /* Free memory allocated with sli3 rings */
6798         kfree(phba->sli.sli3_ring);
6799         phba->sli.sli3_ring = NULL;
6800
6801         kfree(phba);
6802         return;
6803 }
6804
6805 /**
6806  * lpfc_create_shost - Create hba physical port with associated scsi host.
6807  * @phba: pointer to lpfc hba data structure.
6808  *
6809  * This routine is invoked to create HBA physical port and associate a SCSI
6810  * host with it.
6811  *
6812  * Return codes
6813  *      0 - successful
6814  *      other values - error
6815  **/
6816 static int
6817 lpfc_create_shost(struct lpfc_hba *phba)
6818 {
6819         struct lpfc_vport *vport;
6820         struct Scsi_Host  *shost;
6821
6822         /* Initialize HBA FC structure */
6823         phba->fc_edtov = FF_DEF_EDTOV;
6824         phba->fc_ratov = FF_DEF_RATOV;
6825         phba->fc_altov = FF_DEF_ALTOV;
6826         phba->fc_arbtov = FF_DEF_ARBTOV;
6827
6828         atomic_set(&phba->sdev_cnt, 0);
6829         atomic_set(&phba->fc4ScsiInputRequests, 0);
6830         atomic_set(&phba->fc4ScsiOutputRequests, 0);
6831         atomic_set(&phba->fc4ScsiControlRequests, 0);
6832         atomic_set(&phba->fc4ScsiIoCmpls, 0);
6833         atomic_set(&phba->fc4NvmeInputRequests, 0);
6834         atomic_set(&phba->fc4NvmeOutputRequests, 0);
6835         atomic_set(&phba->fc4NvmeControlRequests, 0);
6836         atomic_set(&phba->fc4NvmeIoCmpls, 0);
6837         atomic_set(&phba->fc4NvmeLsRequests, 0);
6838         atomic_set(&phba->fc4NvmeLsCmpls, 0);
6839         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6840         if (!vport)
6841                 return -ENODEV;
6842
6843         shost = lpfc_shost_from_vport(vport);
6844         phba->pport = vport;
6845
6846         if (phba->nvmet_support) {
6847                 /* Only 1 vport (pport) will support NVME target */
6848                 if (phba->txrdy_payload_pool == NULL) {
6849                         phba->txrdy_payload_pool = pci_pool_create(
6850                                 "txrdy_pool", phba->pcidev,
6851                                 TXRDY_PAYLOAD_LEN, 16, 0);
6852                         if (phba->txrdy_payload_pool) {
6853                                 phba->targetport = NULL;
6854                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6855                                 lpfc_printf_log(phba, KERN_INFO,
6856                                                 LOG_INIT | LOG_NVME_DISC,
6857                                                 "6076 NVME Target Found\n");
6858                         }
6859                 }
6860         }
6861
6862         lpfc_debugfs_initialize(vport);
6863         /* Put reference to SCSI host to driver's device private data */
6864         pci_set_drvdata(phba->pcidev, shost);
6865
6866         /*
6867          * At this point we are fully registered with PSA. In addition,
6868          * any initial discovery should be completed.
6869          */
6870         vport->load_flag |= FC_ALLOW_FDMI;
6871         if (phba->cfg_enable_SmartSAN ||
6872             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6873
6874                 /* Setup appropriate attribute masks */
6875                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6876                 if (phba->cfg_enable_SmartSAN)
6877                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6878                 else
6879                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6880         }
6881         return 0;
6882 }
6883
6884 /**
6885  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6886  * @phba: pointer to lpfc hba data structure.
6887  *
6888  * This routine is invoked to destroy HBA physical port and the associated
6889  * SCSI host.
6890  **/
6891 static void
6892 lpfc_destroy_shost(struct lpfc_hba *phba)
6893 {
6894         struct lpfc_vport *vport = phba->pport;
6895
6896         /* Destroy physical port that associated with the SCSI host */
6897         destroy_port(vport);
6898
6899         return;
6900 }
6901
6902 /**
6903  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6904  * @phba: pointer to lpfc hba data structure.
6905  * @shost: the shost to be used to detect Block guard settings.
6906  *
6907  * This routine sets up the local Block guard protocol settings for @shost.
6908  * This routine also allocates memory for debugging bg buffers.
6909  **/
6910 static void
6911 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6912 {
6913         uint32_t old_mask;
6914         uint32_t old_guard;
6915
6916         int pagecnt = 10;
6917         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6918                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6919                                 "1478 Registering BlockGuard with the "
6920                                 "SCSI layer\n");
6921
6922                 old_mask = phba->cfg_prot_mask;
6923                 old_guard = phba->cfg_prot_guard;
6924
6925                 /* Only allow supported values */
6926                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6927                         SHOST_DIX_TYPE0_PROTECTION |
6928                         SHOST_DIX_TYPE1_PROTECTION);
6929                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6930                                          SHOST_DIX_GUARD_CRC);
6931
6932                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6933                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6934                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6935
6936                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6937                         if ((old_mask != phba->cfg_prot_mask) ||
6938                                 (old_guard != phba->cfg_prot_guard))
6939                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6940                                         "1475 Registering BlockGuard with the "
6941                                         "SCSI layer: mask %d  guard %d\n",
6942                                         phba->cfg_prot_mask,
6943                                         phba->cfg_prot_guard);
6944
6945                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
6946                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
6947                 } else
6948                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6949                                 "1479 Not Registering BlockGuard with the SCSI "
6950                                 "layer, Bad protection parameters: %d %d\n",
6951                                 old_mask, old_guard);
6952         }
6953
6954         if (!_dump_buf_data) {
6955                 while (pagecnt) {
6956                         spin_lock_init(&_dump_buf_lock);
6957                         _dump_buf_data =
6958                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6959                         if (_dump_buf_data) {
6960                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6961                                         "9043 BLKGRD: allocated %d pages for "
6962                                        "_dump_buf_data at 0x%p\n",
6963                                        (1 << pagecnt), _dump_buf_data);
6964                                 _dump_buf_data_order = pagecnt;
6965                                 memset(_dump_buf_data, 0,
6966                                        ((1 << PAGE_SHIFT) << pagecnt));
6967                                 break;
6968                         } else
6969                                 --pagecnt;
6970                 }
6971                 if (!_dump_buf_data_order)
6972                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6973                                 "9044 BLKGRD: ERROR unable to allocate "
6974                                "memory for hexdump\n");
6975         } else
6976                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6977                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6978                        "\n", _dump_buf_data);
6979         if (!_dump_buf_dif) {
6980                 while (pagecnt) {
6981                         _dump_buf_dif =
6982                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6983                         if (_dump_buf_dif) {
6984                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6985                                         "9046 BLKGRD: allocated %d pages for "
6986                                        "_dump_buf_dif at 0x%p\n",
6987                                        (1 << pagecnt), _dump_buf_dif);
6988                                 _dump_buf_dif_order = pagecnt;
6989                                 memset(_dump_buf_dif, 0,
6990                                        ((1 << PAGE_SHIFT) << pagecnt));
6991                                 break;
6992                         } else
6993                                 --pagecnt;
6994                 }
6995                 if (!_dump_buf_dif_order)
6996                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6997                         "9047 BLKGRD: ERROR unable to allocate "
6998                                "memory for hexdump\n");
6999         } else
7000                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7001                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7002                        _dump_buf_dif);
7003 }
7004
7005 /**
7006  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7007  * @phba: pointer to lpfc hba data structure.
7008  *
7009  * This routine is invoked to perform all the necessary post initialization
7010  * setup for the device.
7011  **/
7012 static void
7013 lpfc_post_init_setup(struct lpfc_hba *phba)
7014 {
7015         struct Scsi_Host  *shost;
7016         struct lpfc_adapter_event_header adapter_event;
7017
7018         /* Get the default values for Model Name and Description */
7019         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7020
7021         /*
7022          * hba setup may have changed the hba_queue_depth so we need to
7023          * adjust the value of can_queue.
7024          */
7025         shost = pci_get_drvdata(phba->pcidev);
7026         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7027         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7028                 lpfc_setup_bg(phba, shost);
7029
7030         lpfc_host_attrib_init(shost);
7031
7032         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7033                 spin_lock_irq(shost->host_lock);
7034                 lpfc_poll_start_timer(phba);
7035                 spin_unlock_irq(shost->host_lock);
7036         }
7037
7038         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7039                         "0428 Perform SCSI scan\n");
7040         /* Send board arrival event to upper layer */
7041         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7042         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7043         fc_host_post_vendor_event(shost, fc_get_event_number(),
7044                                   sizeof(adapter_event),
7045                                   (char *) &adapter_event,
7046                                   LPFC_NL_VENDOR_ID);
7047         return;
7048 }
7049
7050 /**
7051  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7052  * @phba: pointer to lpfc hba data structure.
7053  *
7054  * This routine is invoked to set up the PCI device memory space for device
7055  * with SLI-3 interface spec.
7056  *
7057  * Return codes
7058  *      0 - successful
7059  *      other values - error
7060  **/
7061 static int
7062 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7063 {
7064         struct pci_dev *pdev;
7065         unsigned long bar0map_len, bar2map_len;
7066         int i, hbq_count;
7067         void *ptr;
7068         int error = -ENODEV;
7069
7070         /* Obtain PCI device reference */
7071         if (!phba->pcidev)
7072                 return error;
7073         else
7074                 pdev = phba->pcidev;
7075
7076         /* Set the device DMA mask size */
7077         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7078          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7079                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7080                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7081                         return error;
7082                 }
7083         }
7084
7085         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7086          * required by each mapping.
7087          */
7088         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7089         bar0map_len = pci_resource_len(pdev, 0);
7090
7091         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7092         bar2map_len = pci_resource_len(pdev, 2);
7093
7094         /* Map HBA SLIM to a kernel virtual address. */
7095         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7096         if (!phba->slim_memmap_p) {
7097                 dev_printk(KERN_ERR, &pdev->dev,
7098                            "ioremap failed for SLIM memory.\n");
7099                 goto out;
7100         }
7101
7102         /* Map HBA Control Registers to a kernel virtual address. */
7103         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7104         if (!phba->ctrl_regs_memmap_p) {
7105                 dev_printk(KERN_ERR, &pdev->dev,
7106                            "ioremap failed for HBA control registers.\n");
7107                 goto out_iounmap_slim;
7108         }
7109
7110         /* Allocate memory for SLI-2 structures */
7111         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7112                                                 &phba->slim2p.phys, GFP_KERNEL);
7113         if (!phba->slim2p.virt)
7114                 goto out_iounmap;
7115
7116         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7117         phba->mbox_ext = (phba->slim2p.virt +
7118                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7119         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7120         phba->IOCBs = (phba->slim2p.virt +
7121                        offsetof(struct lpfc_sli2_slim, IOCBs));
7122
7123         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7124                                                  lpfc_sli_hbq_size(),
7125                                                  &phba->hbqslimp.phys,
7126                                                  GFP_KERNEL);
7127         if (!phba->hbqslimp.virt)
7128                 goto out_free_slim;
7129
7130         hbq_count = lpfc_sli_hbq_count();
7131         ptr = phba->hbqslimp.virt;
7132         for (i = 0; i < hbq_count; ++i) {
7133                 phba->hbqs[i].hbq_virt = ptr;
7134                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7135                 ptr += (lpfc_hbq_defs[i]->entry_count *
7136                         sizeof(struct lpfc_hbq_entry));
7137         }
7138         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7139         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7140
7141         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7142
7143         phba->MBslimaddr = phba->slim_memmap_p;
7144         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7145         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7146         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7147         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7148
7149         return 0;
7150
7151 out_free_slim:
7152         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7153                           phba->slim2p.virt, phba->slim2p.phys);
7154 out_iounmap:
7155         iounmap(phba->ctrl_regs_memmap_p);
7156 out_iounmap_slim:
7157         iounmap(phba->slim_memmap_p);
7158 out:
7159         return error;
7160 }
7161
7162 /**
7163  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7164  * @phba: pointer to lpfc hba data structure.
7165  *
7166  * This routine is invoked to unset the PCI device memory space for device
7167  * with SLI-3 interface spec.
7168  **/
7169 static void
7170 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7171 {
7172         struct pci_dev *pdev;
7173
7174         /* Obtain PCI device reference */
7175         if (!phba->pcidev)
7176                 return;
7177         else
7178                 pdev = phba->pcidev;
7179
7180         /* Free coherent DMA memory allocated */
7181         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7182                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7183         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7184                           phba->slim2p.virt, phba->slim2p.phys);
7185
7186         /* I/O memory unmap */
7187         iounmap(phba->ctrl_regs_memmap_p);
7188         iounmap(phba->slim_memmap_p);
7189
7190         return;
7191 }
7192
7193 /**
7194  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7195  * @phba: pointer to lpfc hba data structure.
7196  *
7197  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7198  * done and check status.
7199  *
7200  * Return 0 if successful, otherwise -ENODEV.
7201  **/
7202 int
7203 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7204 {
7205         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7206         struct lpfc_register reg_data;
7207         int i, port_error = 0;
7208         uint32_t if_type;
7209
7210         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7211         memset(&reg_data, 0, sizeof(reg_data));
7212         if (!phba->sli4_hba.PSMPHRregaddr)
7213                 return -ENODEV;
7214
7215         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7216         for (i = 0; i < 3000; i++) {
7217                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7218                         &portsmphr_reg.word0) ||
7219                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7220                         /* Port has a fatal POST error, break out */
7221                         port_error = -ENODEV;
7222                         break;
7223                 }
7224                 if (LPFC_POST_STAGE_PORT_READY ==
7225                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7226                         break;
7227                 msleep(10);
7228         }
7229
7230         /*
7231          * If there was a port error during POST, then don't proceed with
7232          * other register reads as the data may not be valid.  Just exit.
7233          */
7234         if (port_error) {
7235                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7236                         "1408 Port Failed POST - portsmphr=0x%x, "
7237                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7238                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7239                         portsmphr_reg.word0,
7240                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7241                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7242                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7243                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7244                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7245                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7246                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7247                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7248         } else {
7249                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7250                                 "2534 Device Info: SLIFamily=0x%x, "
7251                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7252                                 "SLIHint_2=0x%x, FT=0x%x\n",
7253                                 bf_get(lpfc_sli_intf_sli_family,
7254                                        &phba->sli4_hba.sli_intf),
7255                                 bf_get(lpfc_sli_intf_slirev,
7256                                        &phba->sli4_hba.sli_intf),
7257                                 bf_get(lpfc_sli_intf_if_type,
7258                                        &phba->sli4_hba.sli_intf),
7259                                 bf_get(lpfc_sli_intf_sli_hint1,
7260                                        &phba->sli4_hba.sli_intf),
7261                                 bf_get(lpfc_sli_intf_sli_hint2,
7262                                        &phba->sli4_hba.sli_intf),
7263                                 bf_get(lpfc_sli_intf_func_type,
7264                                        &phba->sli4_hba.sli_intf));
7265                 /*
7266                  * Check for other Port errors during the initialization
7267                  * process.  Fail the load if the port did not come up
7268                  * correctly.
7269                  */
7270                 if_type = bf_get(lpfc_sli_intf_if_type,
7271                                  &phba->sli4_hba.sli_intf);
7272                 switch (if_type) {
7273                 case LPFC_SLI_INTF_IF_TYPE_0:
7274                         phba->sli4_hba.ue_mask_lo =
7275                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7276                         phba->sli4_hba.ue_mask_hi =
7277                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7278                         uerrlo_reg.word0 =
7279                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7280                         uerrhi_reg.word0 =
7281                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7282                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7283                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7284                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7285                                                 "1422 Unrecoverable Error "
7286                                                 "Detected during POST "
7287                                                 "uerr_lo_reg=0x%x, "
7288                                                 "uerr_hi_reg=0x%x, "
7289                                                 "ue_mask_lo_reg=0x%x, "
7290                                                 "ue_mask_hi_reg=0x%x\n",
7291                                                 uerrlo_reg.word0,
7292                                                 uerrhi_reg.word0,
7293                                                 phba->sli4_hba.ue_mask_lo,
7294                                                 phba->sli4_hba.ue_mask_hi);
7295                                 port_error = -ENODEV;
7296                         }
7297                         break;
7298                 case LPFC_SLI_INTF_IF_TYPE_2:
7299                         /* Final checks.  The port status should be clean. */
7300                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7301                                 &reg_data.word0) ||
7302                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7303                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7304                                 phba->work_status[0] =
7305                                         readl(phba->sli4_hba.u.if_type2.
7306                                               ERR1regaddr);
7307                                 phba->work_status[1] =
7308                                         readl(phba->sli4_hba.u.if_type2.
7309                                               ERR2regaddr);
7310                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311                                         "2888 Unrecoverable port error "
7312                                         "following POST: port status reg "
7313                                         "0x%x, port_smphr reg 0x%x, "
7314                                         "error 1=0x%x, error 2=0x%x\n",
7315                                         reg_data.word0,
7316                                         portsmphr_reg.word0,
7317                                         phba->work_status[0],
7318                                         phba->work_status[1]);
7319                                 port_error = -ENODEV;
7320                         }
7321                         break;
7322                 case LPFC_SLI_INTF_IF_TYPE_1:
7323                 default:
7324                         break;
7325                 }
7326         }
7327         return port_error;
7328 }
7329
7330 /**
7331  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7332  * @phba: pointer to lpfc hba data structure.
7333  * @if_type:  The SLI4 interface type getting configured.
7334  *
7335  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7336  * memory map.
7337  **/
7338 static void
7339 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7340 {
7341         switch (if_type) {
7342         case LPFC_SLI_INTF_IF_TYPE_0:
7343                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7344                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7345                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7346                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7347                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7348                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7349                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7350                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7351                 phba->sli4_hba.SLIINTFregaddr =
7352                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7353                 break;
7354         case LPFC_SLI_INTF_IF_TYPE_2:
7355                 phba->sli4_hba.u.if_type2.EQDregaddr =
7356                         phba->sli4_hba.conf_regs_memmap_p +
7357                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7358                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7359                         phba->sli4_hba.conf_regs_memmap_p +
7360                                                 LPFC_CTL_PORT_ER1_OFFSET;
7361                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7362                         phba->sli4_hba.conf_regs_memmap_p +
7363                                                 LPFC_CTL_PORT_ER2_OFFSET;
7364                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7365                         phba->sli4_hba.conf_regs_memmap_p +
7366                                                 LPFC_CTL_PORT_CTL_OFFSET;
7367                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7368                         phba->sli4_hba.conf_regs_memmap_p +
7369                                                 LPFC_CTL_PORT_STA_OFFSET;
7370                 phba->sli4_hba.SLIINTFregaddr =
7371                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7372                 phba->sli4_hba.PSMPHRregaddr =
7373                         phba->sli4_hba.conf_regs_memmap_p +
7374                                                 LPFC_CTL_PORT_SEM_OFFSET;
7375                 phba->sli4_hba.RQDBregaddr =
7376                         phba->sli4_hba.conf_regs_memmap_p +
7377                                                 LPFC_ULP0_RQ_DOORBELL;
7378                 phba->sli4_hba.WQDBregaddr =
7379                         phba->sli4_hba.conf_regs_memmap_p +
7380                                                 LPFC_ULP0_WQ_DOORBELL;
7381                 phba->sli4_hba.EQCQDBregaddr =
7382                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7383                 phba->sli4_hba.MQDBregaddr =
7384                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7385                 phba->sli4_hba.BMBXregaddr =
7386                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7387                 break;
7388         case LPFC_SLI_INTF_IF_TYPE_1:
7389         default:
7390                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7391                            "FATAL - unsupported SLI4 interface type - %d\n",
7392                            if_type);
7393                 break;
7394         }
7395 }
7396
7397 /**
7398  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7399  * @phba: pointer to lpfc hba data structure.
7400  *
7401  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7402  * memory map.
7403  **/
7404 static void
7405 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7406 {
7407         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7408                 LPFC_SLIPORT_IF0_SMPHR;
7409         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7410                 LPFC_HST_ISR0;
7411         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7412                 LPFC_HST_IMR0;
7413         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7414                 LPFC_HST_ISCR0;
7415 }
7416
7417 /**
7418  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7419  * @phba: pointer to lpfc hba data structure.
7420  * @vf: virtual function number
7421  *
7422  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7423  * based on the given viftual function number, @vf.
7424  *
7425  * Return 0 if successful, otherwise -ENODEV.
7426  **/
7427 static int
7428 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7429 {
7430         if (vf > LPFC_VIR_FUNC_MAX)
7431                 return -ENODEV;
7432
7433         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7434                                 vf * LPFC_VFR_PAGE_SIZE +
7435                                         LPFC_ULP0_RQ_DOORBELL);
7436         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7437                                 vf * LPFC_VFR_PAGE_SIZE +
7438                                         LPFC_ULP0_WQ_DOORBELL);
7439         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7440                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7441         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7442                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7443         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7444                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7445         return 0;
7446 }
7447
7448 /**
7449  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7450  * @phba: pointer to lpfc hba data structure.
7451  *
7452  * This routine is invoked to create the bootstrap mailbox
7453  * region consistent with the SLI-4 interface spec.  This
7454  * routine allocates all memory necessary to communicate
7455  * mailbox commands to the port and sets up all alignment
7456  * needs.  No locks are expected to be held when calling
7457  * this routine.
7458  *
7459  * Return codes
7460  *      0 - successful
7461  *      -ENOMEM - could not allocated memory.
7462  **/
7463 static int
7464 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7465 {
7466         uint32_t bmbx_size;
7467         struct lpfc_dmabuf *dmabuf;
7468         struct dma_address *dma_address;
7469         uint32_t pa_addr;
7470         uint64_t phys_addr;
7471
7472         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7473         if (!dmabuf)
7474                 return -ENOMEM;
7475
7476         /*
7477          * The bootstrap mailbox region is comprised of 2 parts
7478          * plus an alignment restriction of 16 bytes.
7479          */
7480         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7481         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7482                                            &dmabuf->phys, GFP_KERNEL);
7483         if (!dmabuf->virt) {
7484                 kfree(dmabuf);
7485                 return -ENOMEM;
7486         }
7487
7488         /*
7489          * Initialize the bootstrap mailbox pointers now so that the register
7490          * operations are simple later.  The mailbox dma address is required
7491          * to be 16-byte aligned.  Also align the virtual memory as each
7492          * maibox is copied into the bmbx mailbox region before issuing the
7493          * command to the port.
7494          */
7495         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7496         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7497
7498         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7499                                               LPFC_ALIGN_16_BYTE);
7500         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7501                                               LPFC_ALIGN_16_BYTE);
7502
7503         /*
7504          * Set the high and low physical addresses now.  The SLI4 alignment
7505          * requirement is 16 bytes and the mailbox is posted to the port
7506          * as two 30-bit addresses.  The other data is a bit marking whether
7507          * the 30-bit address is the high or low address.
7508          * Upcast bmbx aphys to 64bits so shift instruction compiles
7509          * clean on 32 bit machines.
7510          */
7511         dma_address = &phba->sli4_hba.bmbx.dma_address;
7512         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7513         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7514         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7515                                            LPFC_BMBX_BIT1_ADDR_HI);
7516
7517         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7518         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7519                                            LPFC_BMBX_BIT1_ADDR_LO);
7520         return 0;
7521 }
7522
7523 /**
7524  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7525  * @phba: pointer to lpfc hba data structure.
7526  *
7527  * This routine is invoked to teardown the bootstrap mailbox
7528  * region and release all host resources. This routine requires
7529  * the caller to ensure all mailbox commands recovered, no
7530  * additional mailbox comands are sent, and interrupts are disabled
7531  * before calling this routine.
7532  *
7533  **/
7534 static void
7535 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7536 {
7537         dma_free_coherent(&phba->pcidev->dev,
7538                           phba->sli4_hba.bmbx.bmbx_size,
7539                           phba->sli4_hba.bmbx.dmabuf->virt,
7540                           phba->sli4_hba.bmbx.dmabuf->phys);
7541
7542         kfree(phba->sli4_hba.bmbx.dmabuf);
7543         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7544 }
7545
7546 /**
7547  * lpfc_sli4_read_config - Get the config parameters.
7548  * @phba: pointer to lpfc hba data structure.
7549  *
7550  * This routine is invoked to read the configuration parameters from the HBA.
7551  * The configuration parameters are used to set the base and maximum values
7552  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7553  * allocation for the port.
7554  *
7555  * Return codes
7556  *      0 - successful
7557  *      -ENOMEM - No available memory
7558  *      -EIO - The mailbox failed to complete successfully.
7559  **/
7560 int
7561 lpfc_sli4_read_config(struct lpfc_hba *phba)
7562 {
7563         LPFC_MBOXQ_t *pmb;
7564         struct lpfc_mbx_read_config *rd_config;
7565         union  lpfc_sli4_cfg_shdr *shdr;
7566         uint32_t shdr_status, shdr_add_status;
7567         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7568         struct lpfc_rsrc_desc_fcfcoe *desc;
7569         char *pdesc_0;
7570         uint16_t forced_link_speed;
7571         uint32_t if_type;
7572         int length, i, rc = 0, rc2;
7573
7574         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7575         if (!pmb) {
7576                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7577                                 "2011 Unable to allocate memory for issuing "
7578                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7579                 return -ENOMEM;
7580         }
7581
7582         lpfc_read_config(phba, pmb);
7583
7584         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7585         if (rc != MBX_SUCCESS) {
7586                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7587                         "2012 Mailbox failed , mbxCmd x%x "
7588                         "READ_CONFIG, mbxStatus x%x\n",
7589                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7590                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7591                 rc = -EIO;
7592         } else {
7593                 rd_config = &pmb->u.mqe.un.rd_config;
7594                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7595                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7596                         phba->sli4_hba.lnk_info.lnk_tp =
7597                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7598                         phba->sli4_hba.lnk_info.lnk_no =
7599                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7600                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7601                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7602                                         phba->sli4_hba.lnk_info.lnk_tp,
7603                                         phba->sli4_hba.lnk_info.lnk_no);
7604                 } else
7605                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7606                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7607                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7608                 phba->sli4_hba.extents_in_use =
7609                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7610                 phba->sli4_hba.max_cfg_param.max_xri =
7611                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7612                 phba->sli4_hba.max_cfg_param.xri_base =
7613                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7614                 phba->sli4_hba.max_cfg_param.max_vpi =
7615                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7616                 phba->sli4_hba.max_cfg_param.vpi_base =
7617                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7618                 phba->sli4_hba.max_cfg_param.max_rpi =
7619                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7620                 phba->sli4_hba.max_cfg_param.rpi_base =
7621                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7622                 phba->sli4_hba.max_cfg_param.max_vfi =
7623                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7624                 phba->sli4_hba.max_cfg_param.vfi_base =
7625                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7626                 phba->sli4_hba.max_cfg_param.max_fcfi =
7627                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7628                 phba->sli4_hba.max_cfg_param.max_eq =
7629                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7630                 phba->sli4_hba.max_cfg_param.max_rq =
7631                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7632                 phba->sli4_hba.max_cfg_param.max_wq =
7633                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7634                 phba->sli4_hba.max_cfg_param.max_cq =
7635                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7636                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7637                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7638                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7639                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7640                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7641                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7642                 phba->max_vports = phba->max_vpi;
7643                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7644                                 "2003 cfg params Extents? %d "
7645                                 "XRI(B:%d M:%d), "
7646                                 "VPI(B:%d M:%d) "
7647                                 "VFI(B:%d M:%d) "
7648                                 "RPI(B:%d M:%d) "
7649                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7650                                 phba->sli4_hba.extents_in_use,
7651                                 phba->sli4_hba.max_cfg_param.xri_base,
7652                                 phba->sli4_hba.max_cfg_param.max_xri,
7653                                 phba->sli4_hba.max_cfg_param.vpi_base,
7654                                 phba->sli4_hba.max_cfg_param.max_vpi,
7655                                 phba->sli4_hba.max_cfg_param.vfi_base,
7656                                 phba->sli4_hba.max_cfg_param.max_vfi,
7657                                 phba->sli4_hba.max_cfg_param.rpi_base,
7658                                 phba->sli4_hba.max_cfg_param.max_rpi,
7659                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7660                                 phba->sli4_hba.max_cfg_param.max_eq,
7661                                 phba->sli4_hba.max_cfg_param.max_cq,
7662                                 phba->sli4_hba.max_cfg_param.max_wq,
7663                                 phba->sli4_hba.max_cfg_param.max_rq);
7664
7665         }
7666
7667         if (rc)
7668                 goto read_cfg_out;
7669
7670         /* Update link speed if forced link speed is supported */
7671         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7672         if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7673                 forced_link_speed =
7674                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7675                 if (forced_link_speed) {
7676                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7677
7678                         switch (forced_link_speed) {
7679                         case LINK_SPEED_1G:
7680                                 phba->cfg_link_speed =
7681                                         LPFC_USER_LINK_SPEED_1G;
7682                                 break;
7683                         case LINK_SPEED_2G:
7684                                 phba->cfg_link_speed =
7685                                         LPFC_USER_LINK_SPEED_2G;
7686                                 break;
7687                         case LINK_SPEED_4G:
7688                                 phba->cfg_link_speed =
7689                                         LPFC_USER_LINK_SPEED_4G;
7690                                 break;
7691                         case LINK_SPEED_8G:
7692                                 phba->cfg_link_speed =
7693                                         LPFC_USER_LINK_SPEED_8G;
7694                                 break;
7695                         case LINK_SPEED_10G:
7696                                 phba->cfg_link_speed =
7697                                         LPFC_USER_LINK_SPEED_10G;
7698                                 break;
7699                         case LINK_SPEED_16G:
7700                                 phba->cfg_link_speed =
7701                                         LPFC_USER_LINK_SPEED_16G;
7702                                 break;
7703                         case LINK_SPEED_32G:
7704                                 phba->cfg_link_speed =
7705                                         LPFC_USER_LINK_SPEED_32G;
7706                                 break;
7707                         case 0xffff:
7708                                 phba->cfg_link_speed =
7709                                         LPFC_USER_LINK_SPEED_AUTO;
7710                                 break;
7711                         default:
7712                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7713                                                 "0047 Unrecognized link "
7714                                                 "speed : %d\n",
7715                                                 forced_link_speed);
7716                                 phba->cfg_link_speed =
7717                                         LPFC_USER_LINK_SPEED_AUTO;
7718                         }
7719                 }
7720         }
7721
7722         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7723         length = phba->sli4_hba.max_cfg_param.max_xri -
7724                         lpfc_sli4_get_els_iocb_cnt(phba);
7725         if (phba->cfg_hba_queue_depth > length) {
7726                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7727                                 "3361 HBA queue depth changed from %d to %d\n",
7728                                 phba->cfg_hba_queue_depth, length);
7729                 phba->cfg_hba_queue_depth = length;
7730         }
7731
7732         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7733             LPFC_SLI_INTF_IF_TYPE_2)
7734                 goto read_cfg_out;
7735
7736         /* get the pf# and vf# for SLI4 if_type 2 port */
7737         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7738                   sizeof(struct lpfc_sli4_cfg_mhdr));
7739         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7740                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7741                          length, LPFC_SLI4_MBX_EMBED);
7742
7743         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7744         shdr = (union lpfc_sli4_cfg_shdr *)
7745                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7746         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7747         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7748         if (rc2 || shdr_status || shdr_add_status) {
7749                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7750                                 "3026 Mailbox failed , mbxCmd x%x "
7751                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7752                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7753                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7754                 goto read_cfg_out;
7755         }
7756
7757         /* search for fc_fcoe resrouce descriptor */
7758         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7759
7760         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7761         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7762         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7763         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7764                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7765         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7766                 goto read_cfg_out;
7767
7768         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7769                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7770                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7771                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7772                         phba->sli4_hba.iov.pf_number =
7773                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7774                         phba->sli4_hba.iov.vf_number =
7775                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7776                         break;
7777                 }
7778         }
7779
7780         if (i < LPFC_RSRC_DESC_MAX_NUM)
7781                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7782                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7783                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7784                                 phba->sli4_hba.iov.vf_number);
7785         else
7786                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7787                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7788                                 "Resrouce Descriptor:x%x\n",
7789                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7790
7791 read_cfg_out:
7792         mempool_free(pmb, phba->mbox_mem_pool);
7793         return rc;
7794 }
7795
7796 /**
7797  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7798  * @phba: pointer to lpfc hba data structure.
7799  *
7800  * This routine is invoked to setup the port-side endian order when
7801  * the port if_type is 0.  This routine has no function for other
7802  * if_types.
7803  *
7804  * Return codes
7805  *      0 - successful
7806  *      -ENOMEM - No available memory
7807  *      -EIO - The mailbox failed to complete successfully.
7808  **/
7809 static int
7810 lpfc_setup_endian_order(struct lpfc_hba *phba)
7811 {
7812         LPFC_MBOXQ_t *mboxq;
7813         uint32_t if_type, rc = 0;
7814         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7815                                       HOST_ENDIAN_HIGH_WORD1};
7816
7817         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7818         switch (if_type) {
7819         case LPFC_SLI_INTF_IF_TYPE_0:
7820                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7821                                                        GFP_KERNEL);
7822                 if (!mboxq) {
7823                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7824                                         "0492 Unable to allocate memory for "
7825                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7826                                         "command\n");
7827                         return -ENOMEM;
7828                 }
7829
7830                 /*
7831                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7832                  * two words to contain special data values and no other data.
7833                  */
7834                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7835                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7836                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7837                 if (rc != MBX_SUCCESS) {
7838                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7839                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7840                                         "failed with status x%x\n",
7841                                         rc);
7842                         rc = -EIO;
7843                 }
7844                 mempool_free(mboxq, phba->mbox_mem_pool);
7845                 break;
7846         case LPFC_SLI_INTF_IF_TYPE_2:
7847         case LPFC_SLI_INTF_IF_TYPE_1:
7848         default:
7849                 break;
7850         }
7851         return rc;
7852 }
7853
7854 /**
7855  * lpfc_sli4_queue_verify - Verify and update EQ counts
7856  * @phba: pointer to lpfc hba data structure.
7857  *
7858  * This routine is invoked to check the user settable queue counts for EQs.
7859  * After this routine is called the counts will be set to valid values that
7860  * adhere to the constraints of the system's interrupt vectors and the port's
7861  * queue resources.
7862  *
7863  * Return codes
7864  *      0 - successful
7865  *      -ENOMEM - No available memory
7866  **/
7867 static int
7868 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7869 {
7870         int io_channel;
7871         int fof_vectors = phba->cfg_fof ? 1 : 0;
7872
7873         /*
7874          * Sanity check for configured queue parameters against the run-time
7875          * device parameters
7876          */
7877
7878         /* Sanity check on HBA EQ parameters */
7879         io_channel = phba->io_channel_irqs;
7880
7881         if (phba->sli4_hba.num_online_cpu < io_channel) {
7882                 lpfc_printf_log(phba,
7883                                 KERN_ERR, LOG_INIT,
7884                                 "3188 Reducing IO channels to match number of "
7885                                 "online CPUs: from %d to %d\n",
7886                                 io_channel, phba->sli4_hba.num_online_cpu);
7887                 io_channel = phba->sli4_hba.num_online_cpu;
7888         }
7889
7890         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7891                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7892                                 "2575 Reducing IO channels to match number of "
7893                                 "available EQs: from %d to %d\n",
7894                                 io_channel,
7895                                 phba->sli4_hba.max_cfg_param.max_eq);
7896                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7897         }
7898
7899         /* The actual number of FCP / NVME event queues adopted */
7900         if (io_channel != phba->io_channel_irqs)
7901                 phba->io_channel_irqs = io_channel;
7902         if (phba->cfg_fcp_io_channel > io_channel)
7903                 phba->cfg_fcp_io_channel = io_channel;
7904         if (phba->cfg_nvme_io_channel > io_channel)
7905                 phba->cfg_nvme_io_channel = io_channel;
7906         if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7907                 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7908
7909         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7910                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7911                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7912                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7913
7914         /* Get EQ depth from module parameter, fake the default for now */
7915         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7916         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7917
7918         /* Get CQ depth from module parameter, fake the default for now */
7919         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7920         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7921         return 0;
7922 }
7923
7924 static int
7925 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7926 {
7927         struct lpfc_queue *qdesc;
7928         int cnt;
7929
7930         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7931                                             phba->sli4_hba.cq_ecount);
7932         if (!qdesc) {
7933                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7934                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7935                                 wqidx);
7936                 return 1;
7937         }
7938         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7939
7940         cnt = LPFC_NVME_WQSIZE;
7941         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7942         if (!qdesc) {
7943                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7944                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7945                                 wqidx);
7946                 return 1;
7947         }
7948         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7949         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7950         return 0;
7951 }
7952
7953 static int
7954 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7955 {
7956         struct lpfc_queue *qdesc;
7957         uint32_t wqesize;
7958
7959         /* Create Fast Path FCP CQs */
7960         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7961                                         phba->sli4_hba.cq_ecount);
7962         if (!qdesc) {
7963                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7964                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7965                 return 1;
7966         }
7967         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
7968
7969         /* Create Fast Path FCP WQs */
7970         wqesize = (phba->fcp_embed_io) ?
7971                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7972         qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
7973         if (!qdesc) {
7974                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7975                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
7976                                 wqidx);
7977                 return 1;
7978         }
7979         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
7980         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7981         return 0;
7982 }
7983
7984 /**
7985  * lpfc_sli4_queue_create - Create all the SLI4 queues
7986  * @phba: pointer to lpfc hba data structure.
7987  *
7988  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7989  * operation. For each SLI4 queue type, the parameters such as queue entry
7990  * count (queue depth) shall be taken from the module parameter. For now,
7991  * we just use some constant number as place holder.
7992  *
7993  * Return codes
7994  *      0 - successful
7995  *      -ENOMEM - No availble memory
7996  *      -EIO - The mailbox failed to complete successfully.
7997  **/
7998 int
7999 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8000 {
8001         struct lpfc_queue *qdesc;
8002         int idx, io_channel;
8003
8004         /*
8005          * Create HBA Record arrays.
8006          * Both NVME and FCP will share that same vectors / EQs
8007          */
8008         io_channel = phba->io_channel_irqs;
8009         if (!io_channel)
8010                 return -ERANGE;
8011
8012         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8013         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8014         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8015         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8016         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8017         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8018         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8019         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8020         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8021         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8022
8023         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8024                                         sizeof(struct lpfc_queue *),
8025                                         GFP_KERNEL);
8026         if (!phba->sli4_hba.hba_eq) {
8027                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8028                         "2576 Failed allocate memory for "
8029                         "fast-path EQ record array\n");
8030                 goto out_error;
8031         }
8032
8033         if (phba->cfg_fcp_io_channel) {
8034                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8035                                                 sizeof(struct lpfc_queue *),
8036                                                 GFP_KERNEL);
8037                 if (!phba->sli4_hba.fcp_cq) {
8038                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8039                                         "2577 Failed allocate memory for "
8040                                         "fast-path CQ record array\n");
8041                         goto out_error;
8042                 }
8043                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8044                                                 sizeof(struct lpfc_queue *),
8045                                                 GFP_KERNEL);
8046                 if (!phba->sli4_hba.fcp_wq) {
8047                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8048                                         "2578 Failed allocate memory for "
8049                                         "fast-path FCP WQ record array\n");
8050                         goto out_error;
8051                 }
8052                 /*
8053                  * Since the first EQ can have multiple CQs associated with it,
8054                  * this array is used to quickly see if we have a FCP fast-path
8055                  * CQ match.
8056                  */
8057                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8058                                                         sizeof(uint16_t),
8059                                                         GFP_KERNEL);
8060                 if (!phba->sli4_hba.fcp_cq_map) {
8061                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8062                                         "2545 Failed allocate memory for "
8063                                         "fast-path CQ map\n");
8064                         goto out_error;
8065                 }
8066         }
8067
8068         if (phba->cfg_nvme_io_channel) {
8069                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8070                                                 sizeof(struct lpfc_queue *),
8071                                                 GFP_KERNEL);
8072                 if (!phba->sli4_hba.nvme_cq) {
8073                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8074                                         "6077 Failed allocate memory for "
8075                                         "fast-path CQ record array\n");
8076                         goto out_error;
8077                 }
8078
8079                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8080                                                 sizeof(struct lpfc_queue *),
8081                                                 GFP_KERNEL);
8082                 if (!phba->sli4_hba.nvme_wq) {
8083                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8084                                         "2581 Failed allocate memory for "
8085                                         "fast-path NVME WQ record array\n");
8086                         goto out_error;
8087                 }
8088
8089                 /*
8090                  * Since the first EQ can have multiple CQs associated with it,
8091                  * this array is used to quickly see if we have a NVME fast-path
8092                  * CQ match.
8093                  */
8094                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8095                                                         sizeof(uint16_t),
8096                                                         GFP_KERNEL);
8097                 if (!phba->sli4_hba.nvme_cq_map) {
8098                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8099                                         "6078 Failed allocate memory for "
8100                                         "fast-path CQ map\n");
8101                         goto out_error;
8102                 }
8103
8104                 if (phba->nvmet_support) {
8105                         phba->sli4_hba.nvmet_cqset = kcalloc(
8106                                         phba->cfg_nvmet_mrq,
8107                                         sizeof(struct lpfc_queue *),
8108                                         GFP_KERNEL);
8109                         if (!phba->sli4_hba.nvmet_cqset) {
8110                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8111                                         "3121 Fail allocate memory for "
8112                                         "fast-path CQ set array\n");
8113                                 goto out_error;
8114                         }
8115                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8116                                         phba->cfg_nvmet_mrq,
8117                                         sizeof(struct lpfc_queue *),
8118                                         GFP_KERNEL);
8119                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8120                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8121                                         "3122 Fail allocate memory for "
8122                                         "fast-path RQ set hdr array\n");
8123                                 goto out_error;
8124                         }
8125                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8126                                         phba->cfg_nvmet_mrq,
8127                                         sizeof(struct lpfc_queue *),
8128                                         GFP_KERNEL);
8129                         if (!phba->sli4_hba.nvmet_mrq_data) {
8130                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8131                                         "3124 Fail allocate memory for "
8132                                         "fast-path RQ set data array\n");
8133                                 goto out_error;
8134                         }
8135                 }
8136         }
8137
8138         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8139
8140         /* Create HBA Event Queues (EQs) */
8141         for (idx = 0; idx < io_channel; idx++) {
8142                 /* Create EQs */
8143                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8144                                               phba->sli4_hba.eq_ecount);
8145                 if (!qdesc) {
8146                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8147                                         "0497 Failed allocate EQ (%d)\n", idx);
8148                         goto out_error;
8149                 }
8150                 phba->sli4_hba.hba_eq[idx] = qdesc;
8151         }
8152
8153         /* FCP and NVME io channels are not required to be balanced */
8154
8155         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8156                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8157                         goto out_error;
8158
8159         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8160                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8161                         goto out_error;
8162
8163         if (phba->nvmet_support) {
8164                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8165                         qdesc = lpfc_sli4_queue_alloc(phba,
8166                                         phba->sli4_hba.cq_esize,
8167                                         phba->sli4_hba.cq_ecount);
8168                         if (!qdesc) {
8169                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8170                                         "3142 Failed allocate NVME "
8171                                         "CQ Set (%d)\n", idx);
8172                                 goto out_error;
8173                         }
8174                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8175                 }
8176         }
8177
8178         /*
8179          * Create Slow Path Completion Queues (CQs)
8180          */
8181
8182         /* Create slow-path Mailbox Command Complete Queue */
8183         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8184                                       phba->sli4_hba.cq_ecount);
8185         if (!qdesc) {
8186                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8187                                 "0500 Failed allocate slow-path mailbox CQ\n");
8188                 goto out_error;
8189         }
8190         phba->sli4_hba.mbx_cq = qdesc;
8191
8192         /* Create slow-path ELS Complete Queue */
8193         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8194                                       phba->sli4_hba.cq_ecount);
8195         if (!qdesc) {
8196                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8197                                 "0501 Failed allocate slow-path ELS CQ\n");
8198                 goto out_error;
8199         }
8200         phba->sli4_hba.els_cq = qdesc;
8201
8202
8203         /*
8204          * Create Slow Path Work Queues (WQs)
8205          */
8206
8207         /* Create Mailbox Command Queue */
8208
8209         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8210                                       phba->sli4_hba.mq_ecount);
8211         if (!qdesc) {
8212                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8213                                 "0505 Failed allocate slow-path MQ\n");
8214                 goto out_error;
8215         }
8216         phba->sli4_hba.mbx_wq = qdesc;
8217
8218         /*
8219          * Create ELS Work Queues
8220          */
8221
8222         /* Create slow-path ELS Work Queue */
8223         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8224                                       phba->sli4_hba.wq_ecount);
8225         if (!qdesc) {
8226                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8227                                 "0504 Failed allocate slow-path ELS WQ\n");
8228                 goto out_error;
8229         }
8230         phba->sli4_hba.els_wq = qdesc;
8231         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8232
8233         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8234                 /* Create NVME LS Complete Queue */
8235                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8236                                               phba->sli4_hba.cq_ecount);
8237                 if (!qdesc) {
8238                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8239                                         "6079 Failed allocate NVME LS CQ\n");
8240                         goto out_error;
8241                 }
8242                 phba->sli4_hba.nvmels_cq = qdesc;
8243
8244                 /* Create NVME LS Work Queue */
8245                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8246                                               phba->sli4_hba.wq_ecount);
8247                 if (!qdesc) {
8248                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8249                                         "6080 Failed allocate NVME LS WQ\n");
8250                         goto out_error;
8251                 }
8252                 phba->sli4_hba.nvmels_wq = qdesc;
8253                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8254         }
8255
8256         /*
8257          * Create Receive Queue (RQ)
8258          */
8259
8260         /* Create Receive Queue for header */
8261         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8262                                       phba->sli4_hba.rq_ecount);
8263         if (!qdesc) {
8264                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8265                                 "0506 Failed allocate receive HRQ\n");
8266                 goto out_error;
8267         }
8268         phba->sli4_hba.hdr_rq = qdesc;
8269
8270         /* Create Receive Queue for data */
8271         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8272                                       phba->sli4_hba.rq_ecount);
8273         if (!qdesc) {
8274                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8275                                 "0507 Failed allocate receive DRQ\n");
8276                 goto out_error;
8277         }
8278         phba->sli4_hba.dat_rq = qdesc;
8279
8280         if (phba->nvmet_support) {
8281                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8282                         /* Create NVMET Receive Queue for header */
8283                         qdesc = lpfc_sli4_queue_alloc(phba,
8284                                                       phba->sli4_hba.rq_esize,
8285                                                       LPFC_NVMET_RQE_DEF_COUNT);
8286                         if (!qdesc) {
8287                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8288                                                 "3146 Failed allocate "
8289                                                 "receive HRQ\n");
8290                                 goto out_error;
8291                         }
8292                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8293
8294                         /* Only needed for header of RQ pair */
8295                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8296                                               GFP_KERNEL);
8297                         if (qdesc->rqbp == NULL) {
8298                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8299                                                 "6131 Failed allocate "
8300                                                 "Header RQBP\n");
8301                                 goto out_error;
8302                         }
8303
8304                         /* Create NVMET Receive Queue for data */
8305                         qdesc = lpfc_sli4_queue_alloc(phba,
8306                                                       phba->sli4_hba.rq_esize,
8307                                                       LPFC_NVMET_RQE_DEF_COUNT);
8308                         if (!qdesc) {
8309                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8310                                                 "3156 Failed allocate "
8311                                                 "receive DRQ\n");
8312                                 goto out_error;
8313                         }
8314                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8315                 }
8316         }
8317
8318         /* Create the Queues needed for Flash Optimized Fabric operations */
8319         if (phba->cfg_fof)
8320                 lpfc_fof_queue_create(phba);
8321         return 0;
8322
8323 out_error:
8324         lpfc_sli4_queue_destroy(phba);
8325         return -ENOMEM;
8326 }
8327
8328 static inline void
8329 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8330 {
8331         if (*qp != NULL) {
8332                 lpfc_sli4_queue_free(*qp);
8333                 *qp = NULL;
8334         }
8335 }
8336
8337 static inline void
8338 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8339 {
8340         int idx;
8341
8342         if (*qs == NULL)
8343                 return;
8344
8345         for (idx = 0; idx < max; idx++)
8346                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8347
8348         kfree(*qs);
8349         *qs = NULL;
8350 }
8351
8352 static inline void
8353 lpfc_sli4_release_queue_map(uint16_t **qmap)
8354 {
8355         if (*qmap != NULL) {
8356                 kfree(*qmap);
8357                 *qmap = NULL;
8358         }
8359 }
8360
8361 /**
8362  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8363  * @phba: pointer to lpfc hba data structure.
8364  *
8365  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8366  * operation.
8367  *
8368  * Return codes
8369  *      0 - successful
8370  *      -ENOMEM - No available memory
8371  *      -EIO - The mailbox failed to complete successfully.
8372  **/
8373 void
8374 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8375 {
8376         if (phba->cfg_fof)
8377                 lpfc_fof_queue_destroy(phba);
8378
8379         /* Release HBA eqs */
8380         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8381
8382         /* Release FCP cqs */
8383         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8384                                  phba->cfg_fcp_io_channel);
8385
8386         /* Release FCP wqs */
8387         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8388                                  phba->cfg_fcp_io_channel);
8389
8390         /* Release FCP CQ mapping array */
8391         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8392
8393         /* Release NVME cqs */
8394         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8395                                         phba->cfg_nvme_io_channel);
8396
8397         /* Release NVME wqs */
8398         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8399                                         phba->cfg_nvme_io_channel);
8400
8401         /* Release NVME CQ mapping array */
8402         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8403
8404         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8405                                         phba->cfg_nvmet_mrq);
8406
8407         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8408                                         phba->cfg_nvmet_mrq);
8409         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8410                                         phba->cfg_nvmet_mrq);
8411
8412         /* Release mailbox command work queue */
8413         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8414
8415         /* Release ELS work queue */
8416         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8417
8418         /* Release ELS work queue */
8419         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8420
8421         /* Release unsolicited receive queue */
8422         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8423         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8424
8425         /* Release ELS complete queue */
8426         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8427
8428         /* Release NVME LS complete queue */
8429         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8430
8431         /* Release mailbox command complete queue */
8432         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8433
8434         /* Everything on this list has been freed */
8435         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8436 }
8437
8438 int
8439 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8440 {
8441         struct lpfc_rqb *rqbp;
8442         struct lpfc_dmabuf *h_buf;
8443         struct rqb_dmabuf *rqb_buffer;
8444
8445         rqbp = rq->rqbp;
8446         while (!list_empty(&rqbp->rqb_buffer_list)) {
8447                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8448                                  struct lpfc_dmabuf, list);
8449
8450                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8451                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8452                 rqbp->buffer_count--;
8453         }
8454         return 1;
8455 }
8456
8457 static int
8458 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8459         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8460         int qidx, uint32_t qtype)
8461 {
8462         struct lpfc_sli_ring *pring;
8463         int rc;
8464
8465         if (!eq || !cq || !wq) {
8466                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8467                         "6085 Fast-path %s (%d) not allocated\n",
8468                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8469                 return -ENOMEM;
8470         }
8471
8472         /* create the Cq first */
8473         rc = lpfc_cq_create(phba, cq, eq,
8474                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8475         if (rc) {
8476                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8477                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8478                         qidx, (uint32_t)rc);
8479                 return rc;
8480         }
8481
8482         if (qtype != LPFC_MBOX) {
8483                 /* Setup nvme_cq_map for fast lookup */
8484                 if (cq_map)
8485                         *cq_map = cq->queue_id;
8486
8487                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8488                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8489                         qidx, cq->queue_id, qidx, eq->queue_id);
8490
8491                 /* create the wq */
8492                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8493                 if (rc) {
8494                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8495                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8496                                 qidx, (uint32_t)rc);
8497                         /* no need to tear down cq - caller will do so */
8498                         return rc;
8499                 }
8500
8501                 /* Bind this CQ/WQ to the NVME ring */
8502                 pring = wq->pring;
8503                 pring->sli.sli4.wqp = (void *)wq;
8504                 cq->pring = pring;
8505
8506                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8507                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8508                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8509         } else {
8510                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8511                 if (rc) {
8512                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8513                                 "0539 Failed setup of slow-path MQ: "
8514                                 "rc = 0x%x\n", rc);
8515                         /* no need to tear down cq - caller will do so */
8516                         return rc;
8517                 }
8518
8519                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8520                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8521                         phba->sli4_hba.mbx_wq->queue_id,
8522                         phba->sli4_hba.mbx_cq->queue_id);
8523         }
8524
8525         return 0;
8526 }
8527
8528 /**
8529  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8530  * @phba: pointer to lpfc hba data structure.
8531  *
8532  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8533  * operation.
8534  *
8535  * Return codes
8536  *      0 - successful
8537  *      -ENOMEM - No available memory
8538  *      -EIO - The mailbox failed to complete successfully.
8539  **/
8540 int
8541 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8542 {
8543         uint32_t shdr_status, shdr_add_status;
8544         union lpfc_sli4_cfg_shdr *shdr;
8545         LPFC_MBOXQ_t *mboxq;
8546         int qidx;
8547         uint32_t length, io_channel;
8548         int rc = -ENOMEM;
8549
8550         /* Check for dual-ULP support */
8551         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8552         if (!mboxq) {
8553                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8554                                 "3249 Unable to allocate memory for "
8555                                 "QUERY_FW_CFG mailbox command\n");
8556                 return -ENOMEM;
8557         }
8558         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8559                   sizeof(struct lpfc_sli4_cfg_mhdr));
8560         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8561                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8562                          length, LPFC_SLI4_MBX_EMBED);
8563
8564         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8565
8566         shdr = (union lpfc_sli4_cfg_shdr *)
8567                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8568         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8569         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8570         if (shdr_status || shdr_add_status || rc) {
8571                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8572                                 "3250 QUERY_FW_CFG mailbox failed with status "
8573                                 "x%x add_status x%x, mbx status x%x\n",
8574                                 shdr_status, shdr_add_status, rc);
8575                 if (rc != MBX_TIMEOUT)
8576                         mempool_free(mboxq, phba->mbox_mem_pool);
8577                 rc = -ENXIO;
8578                 goto out_error;
8579         }
8580
8581         phba->sli4_hba.fw_func_mode =
8582                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8583         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8584         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8585         phba->sli4_hba.physical_port =
8586                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8587         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8588                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8589                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8590                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8591
8592         if (rc != MBX_TIMEOUT)
8593                 mempool_free(mboxq, phba->mbox_mem_pool);
8594
8595         /*
8596          * Set up HBA Event Queues (EQs)
8597          */
8598         io_channel = phba->io_channel_irqs;
8599
8600         /* Set up HBA event queue */
8601         if (io_channel && !phba->sli4_hba.hba_eq) {
8602                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8603                                 "3147 Fast-path EQs not allocated\n");
8604                 rc = -ENOMEM;
8605                 goto out_error;
8606         }
8607         for (qidx = 0; qidx < io_channel; qidx++) {
8608                 if (!phba->sli4_hba.hba_eq[qidx]) {
8609                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8610                                         "0522 Fast-path EQ (%d) not "
8611                                         "allocated\n", qidx);
8612                         rc = -ENOMEM;
8613                         goto out_destroy;
8614                 }
8615                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8616                                                 phba->cfg_fcp_imax);
8617                 if (rc) {
8618                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8619                                         "0523 Failed setup of fast-path EQ "
8620                                         "(%d), rc = 0x%x\n", qidx,
8621                                         (uint32_t)rc);
8622                         goto out_destroy;
8623                 }
8624                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8625                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8626                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8627         }
8628
8629         if (phba->cfg_nvme_io_channel) {
8630                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8631                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8632                                 "6084 Fast-path NVME %s array not allocated\n",
8633                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8634                         rc = -ENOMEM;
8635                         goto out_destroy;
8636                 }
8637
8638                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8639                         rc = lpfc_create_wq_cq(phba,
8640                                         phba->sli4_hba.hba_eq[
8641                                                 qidx % io_channel],
8642                                         phba->sli4_hba.nvme_cq[qidx],
8643                                         phba->sli4_hba.nvme_wq[qidx],
8644                                         &phba->sli4_hba.nvme_cq_map[qidx],
8645                                         qidx, LPFC_NVME);
8646                         if (rc) {
8647                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8648                                         "6123 Failed to setup fastpath "
8649                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8650                                         qidx, (uint32_t)rc);
8651                                 goto out_destroy;
8652                         }
8653                 }
8654         }
8655
8656         if (phba->cfg_fcp_io_channel) {
8657                 /* Set up fast-path FCP Response Complete Queue */
8658                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8659                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8660                                 "3148 Fast-path FCP %s array not allocated\n",
8661                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8662                         rc = -ENOMEM;
8663                         goto out_destroy;
8664                 }
8665
8666                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8667                         rc = lpfc_create_wq_cq(phba,
8668                                         phba->sli4_hba.hba_eq[
8669                                                 qidx % io_channel],
8670                                         phba->sli4_hba.fcp_cq[qidx],
8671                                         phba->sli4_hba.fcp_wq[qidx],
8672                                         &phba->sli4_hba.fcp_cq_map[qidx],
8673                                         qidx, LPFC_FCP);
8674                         if (rc) {
8675                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8676                                         "0535 Failed to setup fastpath "
8677                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8678                                         qidx, (uint32_t)rc);
8679                                 goto out_destroy;
8680                         }
8681                 }
8682         }
8683
8684         /*
8685          * Set up Slow Path Complete Queues (CQs)
8686          */
8687
8688         /* Set up slow-path MBOX CQ/MQ */
8689
8690         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8691                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8692                                 "0528 %s not allocated\n",
8693                                 phba->sli4_hba.mbx_cq ?
8694                                 "Mailbox WQ" : "Mailbox CQ");
8695                 rc = -ENOMEM;
8696                 goto out_destroy;
8697         }
8698
8699         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8700                                phba->sli4_hba.mbx_cq,
8701                                phba->sli4_hba.mbx_wq,
8702                                NULL, 0, LPFC_MBOX);
8703         if (rc) {
8704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8705                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8706                         (uint32_t)rc);
8707                 goto out_destroy;
8708         }
8709         if (phba->nvmet_support) {
8710                 if (!phba->sli4_hba.nvmet_cqset) {
8711                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8712                                         "3165 Fast-path NVME CQ Set "
8713                                         "array not allocated\n");
8714                         rc = -ENOMEM;
8715                         goto out_destroy;
8716                 }
8717                 if (phba->cfg_nvmet_mrq > 1) {
8718                         rc = lpfc_cq_create_set(phba,
8719                                         phba->sli4_hba.nvmet_cqset,
8720                                         phba->sli4_hba.hba_eq,
8721                                         LPFC_WCQ, LPFC_NVMET);
8722                         if (rc) {
8723                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8724                                                 "3164 Failed setup of NVME CQ "
8725                                                 "Set, rc = 0x%x\n",
8726                                                 (uint32_t)rc);
8727                                 goto out_destroy;
8728                         }
8729                 } else {
8730                         /* Set up NVMET Receive Complete Queue */
8731                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8732                                             phba->sli4_hba.hba_eq[0],
8733                                             LPFC_WCQ, LPFC_NVMET);
8734                         if (rc) {
8735                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8736                                                 "6089 Failed setup NVMET CQ: "
8737                                                 "rc = 0x%x\n", (uint32_t)rc);
8738                                 goto out_destroy;
8739                         }
8740                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8741                                         "6090 NVMET CQ setup: cq-id=%d, "
8742                                         "parent eq-id=%d\n",
8743                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8744                                         phba->sli4_hba.hba_eq[0]->queue_id);
8745                 }
8746         }
8747
8748         /* Set up slow-path ELS WQ/CQ */
8749         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8750                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8751                                 "0530 ELS %s not allocated\n",
8752                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8753                 rc = -ENOMEM;
8754                 goto out_destroy;
8755         }
8756         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8757                                         phba->sli4_hba.els_cq,
8758                                         phba->sli4_hba.els_wq,
8759                                         NULL, 0, LPFC_ELS);
8760         if (rc) {
8761                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8762                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8763                         (uint32_t)rc);
8764                 goto out_destroy;
8765         }
8766         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8767                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8768                         phba->sli4_hba.els_wq->queue_id,
8769                         phba->sli4_hba.els_cq->queue_id);
8770
8771         if (phba->cfg_nvme_io_channel) {
8772                 /* Set up NVME LS Complete Queue */
8773                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8774                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8775                                         "6091 LS %s not allocated\n",
8776                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8777                         rc = -ENOMEM;
8778                         goto out_destroy;
8779                 }
8780                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8781                                         phba->sli4_hba.nvmels_cq,
8782                                         phba->sli4_hba.nvmels_wq,
8783                                         NULL, 0, LPFC_NVME_LS);
8784                 if (rc) {
8785                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786                                 "0529 Failed setup of NVVME LS WQ/CQ: "
8787                                 "rc = 0x%x\n", (uint32_t)rc);
8788                         goto out_destroy;
8789                 }
8790
8791                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8792                                 "6096 ELS WQ setup: wq-id=%d, "
8793                                 "parent cq-id=%d\n",
8794                                 phba->sli4_hba.nvmels_wq->queue_id,
8795                                 phba->sli4_hba.nvmels_cq->queue_id);
8796         }
8797
8798         /*
8799          * Create NVMET Receive Queue (RQ)
8800          */
8801         if (phba->nvmet_support) {
8802                 if ((!phba->sli4_hba.nvmet_cqset) ||
8803                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
8804                     (!phba->sli4_hba.nvmet_mrq_data)) {
8805                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8806                                         "6130 MRQ CQ Queues not "
8807                                         "allocated\n");
8808                         rc = -ENOMEM;
8809                         goto out_destroy;
8810                 }
8811                 if (phba->cfg_nvmet_mrq > 1) {
8812                         rc = lpfc_mrq_create(phba,
8813                                              phba->sli4_hba.nvmet_mrq_hdr,
8814                                              phba->sli4_hba.nvmet_mrq_data,
8815                                              phba->sli4_hba.nvmet_cqset,
8816                                              LPFC_NVMET);
8817                         if (rc) {
8818                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8819                                                 "6098 Failed setup of NVMET "
8820                                                 "MRQ: rc = 0x%x\n",
8821                                                 (uint32_t)rc);
8822                                 goto out_destroy;
8823                         }
8824
8825                 } else {
8826                         rc = lpfc_rq_create(phba,
8827                                             phba->sli4_hba.nvmet_mrq_hdr[0],
8828                                             phba->sli4_hba.nvmet_mrq_data[0],
8829                                             phba->sli4_hba.nvmet_cqset[0],
8830                                             LPFC_NVMET);
8831                         if (rc) {
8832                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8833                                                 "6057 Failed setup of NVMET "
8834                                                 "Receive Queue: rc = 0x%x\n",
8835                                                 (uint32_t)rc);
8836                                 goto out_destroy;
8837                         }
8838
8839                         lpfc_printf_log(
8840                                 phba, KERN_INFO, LOG_INIT,
8841                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8842                                 "dat-rq-id=%d parent cq-id=%d\n",
8843                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8844                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8845                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8846
8847                 }
8848         }
8849
8850         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8851                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8852                                 "0540 Receive Queue not allocated\n");
8853                 rc = -ENOMEM;
8854                 goto out_destroy;
8855         }
8856
8857         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8858                             phba->sli4_hba.els_cq, LPFC_USOL);
8859         if (rc) {
8860                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8861                                 "0541 Failed setup of Receive Queue: "
8862                                 "rc = 0x%x\n", (uint32_t)rc);
8863                 goto out_destroy;
8864         }
8865
8866         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8867                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8868                         "parent cq-id=%d\n",
8869                         phba->sli4_hba.hdr_rq->queue_id,
8870                         phba->sli4_hba.dat_rq->queue_id,
8871                         phba->sli4_hba.els_cq->queue_id);
8872
8873         if (phba->cfg_fof) {
8874                 rc = lpfc_fof_queue_setup(phba);
8875                 if (rc) {
8876                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8877                                         "0549 Failed setup of FOF Queues: "
8878                                         "rc = 0x%x\n", rc);
8879                         goto out_destroy;
8880                 }
8881         }
8882
8883         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8884                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
8885                                          phba->cfg_fcp_imax);
8886
8887         return 0;
8888
8889 out_destroy:
8890         lpfc_sli4_queue_unset(phba);
8891 out_error:
8892         return rc;
8893 }
8894
8895 /**
8896  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8897  * @phba: pointer to lpfc hba data structure.
8898  *
8899  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8900  * operation.
8901  *
8902  * Return codes
8903  *      0 - successful
8904  *      -ENOMEM - No available memory
8905  *      -EIO - The mailbox failed to complete successfully.
8906  **/
8907 void
8908 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8909 {
8910         int qidx;
8911
8912         /* Unset the queues created for Flash Optimized Fabric operations */
8913         if (phba->cfg_fof)
8914                 lpfc_fof_queue_destroy(phba);
8915
8916         /* Unset mailbox command work queue */
8917         if (phba->sli4_hba.mbx_wq)
8918                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8919
8920         /* Unset NVME LS work queue */
8921         if (phba->sli4_hba.nvmels_wq)
8922                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8923
8924         /* Unset ELS work queue */
8925         if (phba->sli4_hba.els_wq)
8926                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8927
8928         /* Unset unsolicited receive queue */
8929         if (phba->sli4_hba.hdr_rq)
8930                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8931                                 phba->sli4_hba.dat_rq);
8932
8933         /* Unset FCP work queue */
8934         if (phba->sli4_hba.fcp_wq)
8935                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8936                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8937
8938         /* Unset NVME work queue */
8939         if (phba->sli4_hba.nvme_wq) {
8940                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8941                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8942         }
8943
8944         /* Unset mailbox command complete queue */
8945         if (phba->sli4_hba.mbx_cq)
8946                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8947
8948         /* Unset ELS complete queue */
8949         if (phba->sli4_hba.els_cq)
8950                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8951
8952         /* Unset NVME LS complete queue */
8953         if (phba->sli4_hba.nvmels_cq)
8954                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8955
8956         /* Unset NVME response complete queue */
8957         if (phba->sli4_hba.nvme_cq)
8958                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8959                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8960
8961         /* Unset NVMET MRQ queue */
8962         if (phba->sli4_hba.nvmet_mrq_hdr) {
8963                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8964                         lpfc_rq_destroy(phba,
8965                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
8966                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
8967         }
8968
8969         /* Unset NVMET CQ Set complete queue */
8970         if (phba->sli4_hba.nvmet_cqset) {
8971                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8972                         lpfc_cq_destroy(phba,
8973                                         phba->sli4_hba.nvmet_cqset[qidx]);
8974         }
8975
8976         /* Unset FCP response complete queue */
8977         if (phba->sli4_hba.fcp_cq)
8978                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8979                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
8980
8981         /* Unset fast-path event queue */
8982         if (phba->sli4_hba.hba_eq)
8983                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
8984                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
8985 }
8986
8987 /**
8988  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
8989  * @phba: pointer to lpfc hba data structure.
8990  *
8991  * This routine is invoked to allocate and set up a pool of completion queue
8992  * events. The body of the completion queue event is a completion queue entry
8993  * CQE. For now, this pool is used for the interrupt service routine to queue
8994  * the following HBA completion queue events for the worker thread to process:
8995  *   - Mailbox asynchronous events
8996  *   - Receive queue completion unsolicited events
8997  * Later, this can be used for all the slow-path events.
8998  *
8999  * Return codes
9000  *      0 - successful
9001  *      -ENOMEM - No available memory
9002  **/
9003 static int
9004 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9005 {
9006         struct lpfc_cq_event *cq_event;
9007         int i;
9008
9009         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9010                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9011                 if (!cq_event)
9012                         goto out_pool_create_fail;
9013                 list_add_tail(&cq_event->list,
9014                               &phba->sli4_hba.sp_cqe_event_pool);
9015         }
9016         return 0;
9017
9018 out_pool_create_fail:
9019         lpfc_sli4_cq_event_pool_destroy(phba);
9020         return -ENOMEM;
9021 }
9022
9023 /**
9024  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9025  * @phba: pointer to lpfc hba data structure.
9026  *
9027  * This routine is invoked to free the pool of completion queue events at
9028  * driver unload time. Note that, it is the responsibility of the driver
9029  * cleanup routine to free all the outstanding completion-queue events
9030  * allocated from this pool back into the pool before invoking this routine
9031  * to destroy the pool.
9032  **/
9033 static void
9034 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9035 {
9036         struct lpfc_cq_event *cq_event, *next_cq_event;
9037
9038         list_for_each_entry_safe(cq_event, next_cq_event,
9039                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9040                 list_del(&cq_event->list);
9041                 kfree(cq_event);
9042         }
9043 }
9044
9045 /**
9046  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9047  * @phba: pointer to lpfc hba data structure.
9048  *
9049  * This routine is the lock free version of the API invoked to allocate a
9050  * completion-queue event from the free pool.
9051  *
9052  * Return: Pointer to the newly allocated completion-queue event if successful
9053  *         NULL otherwise.
9054  **/
9055 struct lpfc_cq_event *
9056 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9057 {
9058         struct lpfc_cq_event *cq_event = NULL;
9059
9060         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9061                          struct lpfc_cq_event, list);
9062         return cq_event;
9063 }
9064
9065 /**
9066  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9067  * @phba: pointer to lpfc hba data structure.
9068  *
9069  * This routine is the lock version of the API invoked to allocate a
9070  * completion-queue event from the free pool.
9071  *
9072  * Return: Pointer to the newly allocated completion-queue event if successful
9073  *         NULL otherwise.
9074  **/
9075 struct lpfc_cq_event *
9076 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9077 {
9078         struct lpfc_cq_event *cq_event;
9079         unsigned long iflags;
9080
9081         spin_lock_irqsave(&phba->hbalock, iflags);
9082         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9083         spin_unlock_irqrestore(&phba->hbalock, iflags);
9084         return cq_event;
9085 }
9086
9087 /**
9088  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9089  * @phba: pointer to lpfc hba data structure.
9090  * @cq_event: pointer to the completion queue event to be freed.
9091  *
9092  * This routine is the lock free version of the API invoked to release a
9093  * completion-queue event back into the free pool.
9094  **/
9095 void
9096 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9097                              struct lpfc_cq_event *cq_event)
9098 {
9099         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9100 }
9101
9102 /**
9103  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9104  * @phba: pointer to lpfc hba data structure.
9105  * @cq_event: pointer to the completion queue event to be freed.
9106  *
9107  * This routine is the lock version of the API invoked to release a
9108  * completion-queue event back into the free pool.
9109  **/
9110 void
9111 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9112                            struct lpfc_cq_event *cq_event)
9113 {
9114         unsigned long iflags;
9115         spin_lock_irqsave(&phba->hbalock, iflags);
9116         __lpfc_sli4_cq_event_release(phba, cq_event);
9117         spin_unlock_irqrestore(&phba->hbalock, iflags);
9118 }
9119
9120 /**
9121  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9122  * @phba: pointer to lpfc hba data structure.
9123  *
9124  * This routine is to free all the pending completion-queue events to the
9125  * back into the free pool for device reset.
9126  **/
9127 static void
9128 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9129 {
9130         LIST_HEAD(cqelist);
9131         struct lpfc_cq_event *cqe;
9132         unsigned long iflags;
9133
9134         /* Retrieve all the pending WCQEs from pending WCQE lists */
9135         spin_lock_irqsave(&phba->hbalock, iflags);
9136         /* Pending FCP XRI abort events */
9137         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9138                          &cqelist);
9139         /* Pending ELS XRI abort events */
9140         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9141                          &cqelist);
9142         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9143                 /* Pending NVME XRI abort events */
9144                 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9145                                  &cqelist);
9146         }
9147         /* Pending asynnc events */
9148         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9149                          &cqelist);
9150         spin_unlock_irqrestore(&phba->hbalock, iflags);
9151
9152         while (!list_empty(&cqelist)) {
9153                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9154                 lpfc_sli4_cq_event_release(phba, cqe);
9155         }
9156 }
9157
9158 /**
9159  * lpfc_pci_function_reset - Reset pci function.
9160  * @phba: pointer to lpfc hba data structure.
9161  *
9162  * This routine is invoked to request a PCI function reset. It will destroys
9163  * all resources assigned to the PCI function which originates this request.
9164  *
9165  * Return codes
9166  *      0 - successful
9167  *      -ENOMEM - No available memory
9168  *      -EIO - The mailbox failed to complete successfully.
9169  **/
9170 int
9171 lpfc_pci_function_reset(struct lpfc_hba *phba)
9172 {
9173         LPFC_MBOXQ_t *mboxq;
9174         uint32_t rc = 0, if_type;
9175         uint32_t shdr_status, shdr_add_status;
9176         uint32_t rdy_chk;
9177         uint32_t port_reset = 0;
9178         union lpfc_sli4_cfg_shdr *shdr;
9179         struct lpfc_register reg_data;
9180         uint16_t devid;
9181
9182         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9183         switch (if_type) {
9184         case LPFC_SLI_INTF_IF_TYPE_0:
9185                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9186                                                        GFP_KERNEL);
9187                 if (!mboxq) {
9188                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9189                                         "0494 Unable to allocate memory for "
9190                                         "issuing SLI_FUNCTION_RESET mailbox "
9191                                         "command\n");
9192                         return -ENOMEM;
9193                 }
9194
9195                 /* Setup PCI function reset mailbox-ioctl command */
9196                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9197                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9198                                  LPFC_SLI4_MBX_EMBED);
9199                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9200                 shdr = (union lpfc_sli4_cfg_shdr *)
9201                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9202                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9203                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9204                                          &shdr->response);
9205                 if (rc != MBX_TIMEOUT)
9206                         mempool_free(mboxq, phba->mbox_mem_pool);
9207                 if (shdr_status || shdr_add_status || rc) {
9208                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9209                                         "0495 SLI_FUNCTION_RESET mailbox "
9210                                         "failed with status x%x add_status x%x,"
9211                                         " mbx status x%x\n",
9212                                         shdr_status, shdr_add_status, rc);
9213                         rc = -ENXIO;
9214                 }
9215                 break;
9216         case LPFC_SLI_INTF_IF_TYPE_2:
9217 wait:
9218                 /*
9219                  * Poll the Port Status Register and wait for RDY for
9220                  * up to 30 seconds. If the port doesn't respond, treat
9221                  * it as an error.
9222                  */
9223                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9224                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9225                                 STATUSregaddr, &reg_data.word0)) {
9226                                 rc = -ENODEV;
9227                                 goto out;
9228                         }
9229                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9230                                 break;
9231                         msleep(20);
9232                 }
9233
9234                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9235                         phba->work_status[0] = readl(
9236                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9237                         phba->work_status[1] = readl(
9238                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9239                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9240                                         "2890 Port not ready, port status reg "
9241                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9242                                         reg_data.word0,
9243                                         phba->work_status[0],
9244                                         phba->work_status[1]);
9245                         rc = -ENODEV;
9246                         goto out;
9247                 }
9248
9249                 if (!port_reset) {
9250                         /*
9251                          * Reset the port now
9252                          */
9253                         reg_data.word0 = 0;
9254                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9255                                LPFC_SLIPORT_LITTLE_ENDIAN);
9256                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9257                                LPFC_SLIPORT_INIT_PORT);
9258                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9259                                CTRLregaddr);
9260                         /* flush */
9261                         pci_read_config_word(phba->pcidev,
9262                                              PCI_DEVICE_ID, &devid);
9263
9264                         port_reset = 1;
9265                         msleep(20);
9266                         goto wait;
9267                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9268                         rc = -ENODEV;
9269                         goto out;
9270                 }
9271                 break;
9272
9273         case LPFC_SLI_INTF_IF_TYPE_1:
9274         default:
9275                 break;
9276         }
9277
9278 out:
9279         /* Catch the not-ready port failure after a port reset. */
9280         if (rc) {
9281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9282                                 "3317 HBA not functional: IP Reset Failed "
9283                                 "try: echo fw_reset > board_mode\n");
9284                 rc = -ENODEV;
9285         }
9286
9287         return rc;
9288 }
9289
9290 /**
9291  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9292  * @phba: pointer to lpfc hba data structure.
9293  *
9294  * This routine is invoked to set up the PCI device memory space for device
9295  * with SLI-4 interface spec.
9296  *
9297  * Return codes
9298  *      0 - successful
9299  *      other values - error
9300  **/
9301 static int
9302 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9303 {
9304         struct pci_dev *pdev;
9305         unsigned long bar0map_len, bar1map_len, bar2map_len;
9306         int error = -ENODEV;
9307         uint32_t if_type;
9308
9309         /* Obtain PCI device reference */
9310         if (!phba->pcidev)
9311                 return error;
9312         else
9313                 pdev = phba->pcidev;
9314
9315         /* Set the device DMA mask size */
9316         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9317          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9318                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9319                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9320                         return error;
9321                 }
9322         }
9323
9324         /*
9325          * The BARs and register set definitions and offset locations are
9326          * dependent on the if_type.
9327          */
9328         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9329                                   &phba->sli4_hba.sli_intf.word0)) {
9330                 return error;
9331         }
9332
9333         /* There is no SLI3 failback for SLI4 devices. */
9334         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9335             LPFC_SLI_INTF_VALID) {
9336                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9337                                 "2894 SLI_INTF reg contents invalid "
9338                                 "sli_intf reg 0x%x\n",
9339                                 phba->sli4_hba.sli_intf.word0);
9340                 return error;
9341         }
9342
9343         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9344         /*
9345          * Get the bus address of SLI4 device Bar regions and the
9346          * number of bytes required by each mapping. The mapping of the
9347          * particular PCI BARs regions is dependent on the type of
9348          * SLI4 device.
9349          */
9350         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9351                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9352                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9353
9354                 /*
9355                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9356                  * addr
9357                  */
9358                 phba->sli4_hba.conf_regs_memmap_p =
9359                         ioremap(phba->pci_bar0_map, bar0map_len);
9360                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9361                         dev_printk(KERN_ERR, &pdev->dev,
9362                                    "ioremap failed for SLI4 PCI config "
9363                                    "registers.\n");
9364                         goto out;
9365                 }
9366                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9367                 /* Set up BAR0 PCI config space register memory map */
9368                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9369         } else {
9370                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9371                 bar0map_len = pci_resource_len(pdev, 1);
9372                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9373                         dev_printk(KERN_ERR, &pdev->dev,
9374                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9375                         goto out;
9376                 }
9377                 phba->sli4_hba.conf_regs_memmap_p =
9378                                 ioremap(phba->pci_bar0_map, bar0map_len);
9379                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9380                         dev_printk(KERN_ERR, &pdev->dev,
9381                                 "ioremap failed for SLI4 PCI config "
9382                                 "registers.\n");
9383                                 goto out;
9384                 }
9385                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9386         }
9387
9388         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9389             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9390                 /*
9391                  * Map SLI4 if type 0 HBA Control Register base to a kernel
9392                  * virtual address and setup the registers.
9393                  */
9394                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9395                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9396                 phba->sli4_hba.ctrl_regs_memmap_p =
9397                                 ioremap(phba->pci_bar1_map, bar1map_len);
9398                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9399                         dev_printk(KERN_ERR, &pdev->dev,
9400                            "ioremap failed for SLI4 HBA control registers.\n");
9401                         goto out_iounmap_conf;
9402                 }
9403                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9404                 lpfc_sli4_bar1_register_memmap(phba);
9405         }
9406
9407         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9408             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9409                 /*
9410                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9411                  * virtual address and setup the registers.
9412                  */
9413                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9414                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9415                 phba->sli4_hba.drbl_regs_memmap_p =
9416                                 ioremap(phba->pci_bar2_map, bar2map_len);
9417                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9418                         dev_printk(KERN_ERR, &pdev->dev,
9419                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9420                         goto out_iounmap_ctrl;
9421                 }
9422                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9423                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9424                 if (error)
9425                         goto out_iounmap_all;
9426         }
9427
9428         return 0;
9429
9430 out_iounmap_all:
9431         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9432 out_iounmap_ctrl:
9433         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9434 out_iounmap_conf:
9435         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9436 out:
9437         return error;
9438 }
9439
9440 /**
9441  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9442  * @phba: pointer to lpfc hba data structure.
9443  *
9444  * This routine is invoked to unset the PCI device memory space for device
9445  * with SLI-4 interface spec.
9446  **/
9447 static void
9448 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9449 {
9450         uint32_t if_type;
9451         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9452
9453         switch (if_type) {
9454         case LPFC_SLI_INTF_IF_TYPE_0:
9455                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9456                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9457                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9458                 break;
9459         case LPFC_SLI_INTF_IF_TYPE_2:
9460                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9461                 break;
9462         case LPFC_SLI_INTF_IF_TYPE_1:
9463         default:
9464                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9465                            "FATAL - unsupported SLI4 interface type - %d\n",
9466                            if_type);
9467                 break;
9468         }
9469 }
9470
9471 /**
9472  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9473  * @phba: pointer to lpfc hba data structure.
9474  *
9475  * This routine is invoked to enable the MSI-X interrupt vectors to device
9476  * with SLI-3 interface specs.
9477  *
9478  * Return codes
9479  *   0 - successful
9480  *   other values - error
9481  **/
9482 static int
9483 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9484 {
9485         int rc;
9486         LPFC_MBOXQ_t *pmb;
9487
9488         /* Set up MSI-X multi-message vectors */
9489         rc = pci_alloc_irq_vectors(phba->pcidev,
9490                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9491         if (rc < 0) {
9492                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9493                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9494                 goto vec_fail_out;
9495         }
9496
9497         /*
9498          * Assign MSI-X vectors to interrupt handlers
9499          */
9500
9501         /* vector-0 is associated to slow-path handler */
9502         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9503                          &lpfc_sli_sp_intr_handler, 0,
9504                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9505         if (rc) {
9506                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9507                                 "0421 MSI-X slow-path request_irq failed "
9508                                 "(%d)\n", rc);
9509                 goto msi_fail_out;
9510         }
9511
9512         /* vector-1 is associated to fast-path handler */
9513         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9514                          &lpfc_sli_fp_intr_handler, 0,
9515                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9516
9517         if (rc) {
9518                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9519                                 "0429 MSI-X fast-path request_irq failed "
9520                                 "(%d)\n", rc);
9521                 goto irq_fail_out;
9522         }
9523
9524         /*
9525          * Configure HBA MSI-X attention conditions to messages
9526          */
9527         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9528
9529         if (!pmb) {
9530                 rc = -ENOMEM;
9531                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9532                                 "0474 Unable to allocate memory for issuing "
9533                                 "MBOX_CONFIG_MSI command\n");
9534                 goto mem_fail_out;
9535         }
9536         rc = lpfc_config_msi(phba, pmb);
9537         if (rc)
9538                 goto mbx_fail_out;
9539         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9540         if (rc != MBX_SUCCESS) {
9541                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9542                                 "0351 Config MSI mailbox command failed, "
9543                                 "mbxCmd x%x, mbxStatus x%x\n",
9544                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9545                 goto mbx_fail_out;
9546         }
9547
9548         /* Free memory allocated for mailbox command */
9549         mempool_free(pmb, phba->mbox_mem_pool);
9550         return rc;
9551
9552 mbx_fail_out:
9553         /* Free memory allocated for mailbox command */
9554         mempool_free(pmb, phba->mbox_mem_pool);
9555
9556 mem_fail_out:
9557         /* free the irq already requested */
9558         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9559
9560 irq_fail_out:
9561         /* free the irq already requested */
9562         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9563
9564 msi_fail_out:
9565         /* Unconfigure MSI-X capability structure */
9566         pci_free_irq_vectors(phba->pcidev);
9567
9568 vec_fail_out:
9569         return rc;
9570 }
9571
9572 /**
9573  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9574  * @phba: pointer to lpfc hba data structure.
9575  *
9576  * This routine is invoked to enable the MSI interrupt mode to device with
9577  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9578  * enable the MSI vector. The device driver is responsible for calling the
9579  * request_irq() to register MSI vector with a interrupt the handler, which
9580  * is done in this function.
9581  *
9582  * Return codes
9583  *      0 - successful
9584  *      other values - error
9585  */
9586 static int
9587 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9588 {
9589         int rc;
9590
9591         rc = pci_enable_msi(phba->pcidev);
9592         if (!rc)
9593                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9594                                 "0462 PCI enable MSI mode success.\n");
9595         else {
9596                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9597                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9598                 return rc;
9599         }
9600
9601         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9602                          0, LPFC_DRIVER_NAME, phba);
9603         if (rc) {
9604                 pci_disable_msi(phba->pcidev);
9605                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9606                                 "0478 MSI request_irq failed (%d)\n", rc);
9607         }
9608         return rc;
9609 }
9610
9611 /**
9612  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9613  * @phba: pointer to lpfc hba data structure.
9614  *
9615  * This routine is invoked to enable device interrupt and associate driver's
9616  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9617  * spec. Depends on the interrupt mode configured to the driver, the driver
9618  * will try to fallback from the configured interrupt mode to an interrupt
9619  * mode which is supported by the platform, kernel, and device in the order
9620  * of:
9621  * MSI-X -> MSI -> IRQ.
9622  *
9623  * Return codes
9624  *   0 - successful
9625  *   other values - error
9626  **/
9627 static uint32_t
9628 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9629 {
9630         uint32_t intr_mode = LPFC_INTR_ERROR;
9631         int retval;
9632
9633         if (cfg_mode == 2) {
9634                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9635                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9636                 if (!retval) {
9637                         /* Now, try to enable MSI-X interrupt mode */
9638                         retval = lpfc_sli_enable_msix(phba);
9639                         if (!retval) {
9640                                 /* Indicate initialization to MSI-X mode */
9641                                 phba->intr_type = MSIX;
9642                                 intr_mode = 2;
9643                         }
9644                 }
9645         }
9646
9647         /* Fallback to MSI if MSI-X initialization failed */
9648         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9649                 retval = lpfc_sli_enable_msi(phba);
9650                 if (!retval) {
9651                         /* Indicate initialization to MSI mode */
9652                         phba->intr_type = MSI;
9653                         intr_mode = 1;
9654                 }
9655         }
9656
9657         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9658         if (phba->intr_type == NONE) {
9659                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9660                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9661                 if (!retval) {
9662                         /* Indicate initialization to INTx mode */
9663                         phba->intr_type = INTx;
9664                         intr_mode = 0;
9665                 }
9666         }
9667         return intr_mode;
9668 }
9669
9670 /**
9671  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9672  * @phba: pointer to lpfc hba data structure.
9673  *
9674  * This routine is invoked to disable device interrupt and disassociate the
9675  * driver's interrupt handler(s) from interrupt vector(s) to device with
9676  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9677  * release the interrupt vector(s) for the message signaled interrupt.
9678  **/
9679 static void
9680 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9681 {
9682         int nr_irqs, i;
9683
9684         if (phba->intr_type == MSIX)
9685                 nr_irqs = LPFC_MSIX_VECTORS;
9686         else
9687                 nr_irqs = 1;
9688
9689         for (i = 0; i < nr_irqs; i++)
9690                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9691         pci_free_irq_vectors(phba->pcidev);
9692
9693         /* Reset interrupt management states */
9694         phba->intr_type = NONE;
9695         phba->sli.slistat.sli_intr = 0;
9696 }
9697
9698 /**
9699  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9700  * @phba: pointer to lpfc hba data structure.
9701  * @vectors: number of msix vectors allocated.
9702  *
9703  * The routine will figure out the CPU affinity assignment for every
9704  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
9705  * with a pointer to the CPU mask that defines ALL the CPUs this vector
9706  * can be associated with. If the vector can be unquely associated with
9707  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9708  * In addition, the CPU to IO channel mapping will be calculated
9709  * and the phba->sli4_hba.cpu_map array will reflect this.
9710  */
9711 static void
9712 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9713 {
9714         struct lpfc_vector_map_info *cpup;
9715         int index = 0;
9716         int vec = 0;
9717         int cpu;
9718 #ifdef CONFIG_X86
9719         struct cpuinfo_x86 *cpuinfo;
9720 #endif
9721
9722         /* Init cpu_map array */
9723         memset(phba->sli4_hba.cpu_map, 0xff,
9724                (sizeof(struct lpfc_vector_map_info) *
9725                phba->sli4_hba.num_present_cpu));
9726
9727         /* Update CPU map with physical id and core id of each CPU */
9728         cpup = phba->sli4_hba.cpu_map;
9729         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9730 #ifdef CONFIG_X86
9731                 cpuinfo = &cpu_data(cpu);
9732                 cpup->phys_id = cpuinfo->phys_proc_id;
9733                 cpup->core_id = cpuinfo->cpu_core_id;
9734 #else
9735                 /* No distinction between CPUs for other platforms */
9736                 cpup->phys_id = 0;
9737                 cpup->core_id = 0;
9738 #endif
9739                 cpup->channel_id = index;  /* For now round robin */
9740                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9741                 vec++;
9742                 if (vec >= vectors)
9743                         vec = 0;
9744                 index++;
9745                 if (index >= phba->cfg_fcp_io_channel)
9746                         index = 0;
9747                 cpup++;
9748         }
9749 }
9750
9751
9752 /**
9753  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9754  * @phba: pointer to lpfc hba data structure.
9755  *
9756  * This routine is invoked to enable the MSI-X interrupt vectors to device
9757  * with SLI-4 interface spec.
9758  *
9759  * Return codes
9760  * 0 - successful
9761  * other values - error
9762  **/
9763 static int
9764 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9765 {
9766         int vectors, rc, index;
9767         char *name;
9768
9769         /* Set up MSI-X multi-message vectors */
9770         vectors = phba->io_channel_irqs;
9771         if (phba->cfg_fof)
9772                 vectors++;
9773
9774         rc = pci_alloc_irq_vectors(phba->pcidev,
9775                                 (phba->nvmet_support) ? 1 : 2,
9776                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9777         if (rc < 0) {
9778                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9779                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
9780                 goto vec_fail_out;
9781         }
9782         vectors = rc;
9783
9784         /* Assign MSI-X vectors to interrupt handlers */
9785         for (index = 0; index < vectors; index++) {
9786                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
9787                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
9788                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
9789                          LPFC_DRIVER_HANDLER_NAME"%d", index);
9790
9791                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9792                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9793                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9794                 if (phba->cfg_fof && (index == (vectors - 1)))
9795                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9796                                  &lpfc_sli4_fof_intr_handler, 0,
9797                                  name,
9798                                  &phba->sli4_hba.hba_eq_hdl[index]);
9799                 else
9800                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9801                                  &lpfc_sli4_hba_intr_handler, 0,
9802                                  name,
9803                                  &phba->sli4_hba.hba_eq_hdl[index]);
9804                 if (rc) {
9805                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9806                                         "0486 MSI-X fast-path (%d) "
9807                                         "request_irq failed (%d)\n", index, rc);
9808                         goto cfg_fail_out;
9809                 }
9810         }
9811
9812         if (phba->cfg_fof)
9813                 vectors--;
9814
9815         if (vectors != phba->io_channel_irqs) {
9816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9817                                 "3238 Reducing IO channels to match number of "
9818                                 "MSI-X vectors, requested %d got %d\n",
9819                                 phba->io_channel_irqs, vectors);
9820                 if (phba->cfg_fcp_io_channel > vectors)
9821                         phba->cfg_fcp_io_channel = vectors;
9822                 if (phba->cfg_nvme_io_channel > vectors)
9823                         phba->cfg_nvme_io_channel = vectors;
9824                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9825                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9826                 else
9827                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9828         }
9829         lpfc_cpu_affinity_check(phba, vectors);
9830
9831         return rc;
9832
9833 cfg_fail_out:
9834         /* free the irq already requested */
9835         for (--index; index >= 0; index--)
9836                 free_irq(pci_irq_vector(phba->pcidev, index),
9837                                 &phba->sli4_hba.hba_eq_hdl[index]);
9838
9839         /* Unconfigure MSI-X capability structure */
9840         pci_free_irq_vectors(phba->pcidev);
9841
9842 vec_fail_out:
9843         return rc;
9844 }
9845
9846 /**
9847  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9848  * @phba: pointer to lpfc hba data structure.
9849  *
9850  * This routine is invoked to enable the MSI interrupt mode to device with
9851  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9852  * to enable the MSI vector. The device driver is responsible for calling
9853  * the request_irq() to register MSI vector with a interrupt the handler,
9854  * which is done in this function.
9855  *
9856  * Return codes
9857  *      0 - successful
9858  *      other values - error
9859  **/
9860 static int
9861 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9862 {
9863         int rc, index;
9864
9865         rc = pci_enable_msi(phba->pcidev);
9866         if (!rc)
9867                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9868                                 "0487 PCI enable MSI mode success.\n");
9869         else {
9870                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9871                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9872                 return rc;
9873         }
9874
9875         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9876                          0, LPFC_DRIVER_NAME, phba);
9877         if (rc) {
9878                 pci_disable_msi(phba->pcidev);
9879                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9880                                 "0490 MSI request_irq failed (%d)\n", rc);
9881                 return rc;
9882         }
9883
9884         for (index = 0; index < phba->io_channel_irqs; index++) {
9885                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9886                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9887         }
9888
9889         if (phba->cfg_fof) {
9890                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9891                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9892         }
9893         return 0;
9894 }
9895
9896 /**
9897  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9898  * @phba: pointer to lpfc hba data structure.
9899  *
9900  * This routine is invoked to enable device interrupt and associate driver's
9901  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9902  * interface spec. Depends on the interrupt mode configured to the driver,
9903  * the driver will try to fallback from the configured interrupt mode to an
9904  * interrupt mode which is supported by the platform, kernel, and device in
9905  * the order of:
9906  * MSI-X -> MSI -> IRQ.
9907  *
9908  * Return codes
9909  *      0 - successful
9910  *      other values - error
9911  **/
9912 static uint32_t
9913 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9914 {
9915         uint32_t intr_mode = LPFC_INTR_ERROR;
9916         int retval, idx;
9917
9918         if (cfg_mode == 2) {
9919                 /* Preparation before conf_msi mbox cmd */
9920                 retval = 0;
9921                 if (!retval) {
9922                         /* Now, try to enable MSI-X interrupt mode */
9923                         retval = lpfc_sli4_enable_msix(phba);
9924                         if (!retval) {
9925                                 /* Indicate initialization to MSI-X mode */
9926                                 phba->intr_type = MSIX;
9927                                 intr_mode = 2;
9928                         }
9929                 }
9930         }
9931
9932         /* Fallback to MSI if MSI-X initialization failed */
9933         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9934                 retval = lpfc_sli4_enable_msi(phba);
9935                 if (!retval) {
9936                         /* Indicate initialization to MSI mode */
9937                         phba->intr_type = MSI;
9938                         intr_mode = 1;
9939                 }
9940         }
9941
9942         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9943         if (phba->intr_type == NONE) {
9944                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9945                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9946                 if (!retval) {
9947                         struct lpfc_hba_eq_hdl *eqhdl;
9948
9949                         /* Indicate initialization to INTx mode */
9950                         phba->intr_type = INTx;
9951                         intr_mode = 0;
9952
9953                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9954                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9955                                 eqhdl->idx = idx;
9956                                 eqhdl->phba = phba;
9957                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9958                         }
9959                         if (phba->cfg_fof) {
9960                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9961                                 eqhdl->idx = idx;
9962                                 eqhdl->phba = phba;
9963                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9964                         }
9965                 }
9966         }
9967         return intr_mode;
9968 }
9969
9970 /**
9971  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9972  * @phba: pointer to lpfc hba data structure.
9973  *
9974  * This routine is invoked to disable device interrupt and disassociate
9975  * the driver's interrupt handler(s) from interrupt vector(s) to device
9976  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9977  * will release the interrupt vector(s) for the message signaled interrupt.
9978  **/
9979 static void
9980 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9981 {
9982         /* Disable the currently initialized interrupt mode */
9983         if (phba->intr_type == MSIX) {
9984                 int index;
9985
9986                 /* Free up MSI-X multi-message vectors */
9987                 for (index = 0; index < phba->io_channel_irqs; index++)
9988                         free_irq(pci_irq_vector(phba->pcidev, index),
9989                                         &phba->sli4_hba.hba_eq_hdl[index]);
9990
9991                 if (phba->cfg_fof)
9992                         free_irq(pci_irq_vector(phba->pcidev, index),
9993                                         &phba->sli4_hba.hba_eq_hdl[index]);
9994         } else {
9995                 free_irq(phba->pcidev->irq, phba);
9996         }
9997
9998         pci_free_irq_vectors(phba->pcidev);
9999
10000         /* Reset interrupt management states */
10001         phba->intr_type = NONE;
10002         phba->sli.slistat.sli_intr = 0;
10003 }
10004
10005 /**
10006  * lpfc_unset_hba - Unset SLI3 hba device initialization
10007  * @phba: pointer to lpfc hba data structure.
10008  *
10009  * This routine is invoked to unset the HBA device initialization steps to
10010  * a device with SLI-3 interface spec.
10011  **/
10012 static void
10013 lpfc_unset_hba(struct lpfc_hba *phba)
10014 {
10015         struct lpfc_vport *vport = phba->pport;
10016         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10017
10018         spin_lock_irq(shost->host_lock);
10019         vport->load_flag |= FC_UNLOADING;
10020         spin_unlock_irq(shost->host_lock);
10021
10022         kfree(phba->vpi_bmask);
10023         kfree(phba->vpi_ids);
10024
10025         lpfc_stop_hba_timers(phba);
10026
10027         phba->pport->work_port_events = 0;
10028
10029         lpfc_sli_hba_down(phba);
10030
10031         lpfc_sli_brdrestart(phba);
10032
10033         lpfc_sli_disable_intr(phba);
10034
10035         return;
10036 }
10037
10038 /**
10039  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10040  * @phba: Pointer to HBA context object.
10041  *
10042  * This function is called in the SLI4 code path to wait for completion
10043  * of device's XRIs exchange busy. It will check the XRI exchange busy
10044  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10045  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10046  * I/Os every 30 seconds, log error message, and wait forever. Only when
10047  * all XRI exchange busy complete, the driver unload shall proceed with
10048  * invoking the function reset ioctl mailbox command to the CNA and the
10049  * the rest of the driver unload resource release.
10050  **/
10051 static void
10052 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10053 {
10054         int wait_time = 0;
10055         int nvme_xri_cmpl = 1;
10056         int nvmet_xri_cmpl = 1;
10057         int fcp_xri_cmpl = 1;
10058         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10059
10060         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10061                 fcp_xri_cmpl =
10062                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10063         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10064                 nvme_xri_cmpl =
10065                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10066                 nvmet_xri_cmpl =
10067                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10068         }
10069
10070         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10071                !nvmet_xri_cmpl) {
10072                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10073                         if (!nvme_xri_cmpl)
10074                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10075                                                 "6100 NVME XRI exchange busy "
10076                                                 "wait time: %d seconds.\n",
10077                                                 wait_time/1000);
10078                         if (!fcp_xri_cmpl)
10079                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10080                                                 "2877 FCP XRI exchange busy "
10081                                                 "wait time: %d seconds.\n",
10082                                                 wait_time/1000);
10083                         if (!els_xri_cmpl)
10084                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10085                                                 "2878 ELS XRI exchange busy "
10086                                                 "wait time: %d seconds.\n",
10087                                                 wait_time/1000);
10088                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10089                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10090                 } else {
10091                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10092                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10093                 }
10094                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10095                         nvme_xri_cmpl = list_empty(
10096                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10097                         nvmet_xri_cmpl = list_empty(
10098                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10099                 }
10100
10101                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10102                         fcp_xri_cmpl = list_empty(
10103                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10104
10105                 els_xri_cmpl =
10106                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10107
10108         }
10109 }
10110
10111 /**
10112  * lpfc_sli4_hba_unset - Unset the fcoe hba
10113  * @phba: Pointer to HBA context object.
10114  *
10115  * This function is called in the SLI4 code path to reset the HBA's FCoE
10116  * function. The caller is not required to hold any lock. This routine
10117  * issues PCI function reset mailbox command to reset the FCoE function.
10118  * At the end of the function, it calls lpfc_hba_down_post function to
10119  * free any pending commands.
10120  **/
10121 static void
10122 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10123 {
10124         int wait_cnt = 0;
10125         LPFC_MBOXQ_t *mboxq;
10126         struct pci_dev *pdev = phba->pcidev;
10127
10128         lpfc_stop_hba_timers(phba);
10129         phba->sli4_hba.intr_enable = 0;
10130
10131         /*
10132          * Gracefully wait out the potential current outstanding asynchronous
10133          * mailbox command.
10134          */
10135
10136         /* First, block any pending async mailbox command from posted */
10137         spin_lock_irq(&phba->hbalock);
10138         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10139         spin_unlock_irq(&phba->hbalock);
10140         /* Now, trying to wait it out if we can */
10141         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10142                 msleep(10);
10143                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10144                         break;
10145         }
10146         /* Forcefully release the outstanding mailbox command if timed out */
10147         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10148                 spin_lock_irq(&phba->hbalock);
10149                 mboxq = phba->sli.mbox_active;
10150                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10151                 __lpfc_mbox_cmpl_put(phba, mboxq);
10152                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10153                 phba->sli.mbox_active = NULL;
10154                 spin_unlock_irq(&phba->hbalock);
10155         }
10156
10157         /* Abort all iocbs associated with the hba */
10158         lpfc_sli_hba_iocb_abort(phba);
10159
10160         /* Wait for completion of device XRI exchange busy */
10161         lpfc_sli4_xri_exchange_busy_wait(phba);
10162
10163         /* Disable PCI subsystem interrupt */
10164         lpfc_sli4_disable_intr(phba);
10165
10166         /* Disable SR-IOV if enabled */
10167         if (phba->cfg_sriov_nr_virtfn)
10168                 pci_disable_sriov(pdev);
10169
10170         /* Stop kthread signal shall trigger work_done one more time */
10171         kthread_stop(phba->worker_thread);
10172
10173         /* Unset the queues shared with the hardware then release all
10174          * allocated resources.
10175          */
10176         lpfc_sli4_queue_unset(phba);
10177         lpfc_sli4_queue_destroy(phba);
10178
10179         /* Reset SLI4 HBA FCoE function */
10180         lpfc_pci_function_reset(phba);
10181
10182         /* Stop the SLI4 device port */
10183         phba->pport->work_port_events = 0;
10184 }
10185
10186  /**
10187  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10188  * @phba: Pointer to HBA context object.
10189  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10190  *
10191  * This function is called in the SLI4 code path to read the port's
10192  * sli4 capabilities.
10193  *
10194  * This function may be be called from any context that can block-wait
10195  * for the completion.  The expectation is that this routine is called
10196  * typically from probe_one or from the online routine.
10197  **/
10198 int
10199 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10200 {
10201         int rc;
10202         struct lpfc_mqe *mqe;
10203         struct lpfc_pc_sli4_params *sli4_params;
10204         uint32_t mbox_tmo;
10205
10206         rc = 0;
10207         mqe = &mboxq->u.mqe;
10208
10209         /* Read the port's SLI4 Parameters port capabilities */
10210         lpfc_pc_sli4_params(mboxq);
10211         if (!phba->sli4_hba.intr_enable)
10212                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10213         else {
10214                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10215                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10216         }
10217
10218         if (unlikely(rc))
10219                 return 1;
10220
10221         sli4_params = &phba->sli4_hba.pc_sli4_params;
10222         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10223         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10224         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10225         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10226                                              &mqe->un.sli4_params);
10227         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10228                                              &mqe->un.sli4_params);
10229         sli4_params->proto_types = mqe->un.sli4_params.word3;
10230         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10231         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10232         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10233         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10234         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10235         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10236         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10237         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10238         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10239         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10240         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10241         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10242         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10243         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10244         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10245         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10246         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10247         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10248         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10249         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10250
10251         /* Make sure that sge_supp_len can be handled by the driver */
10252         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10253                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10254
10255         return rc;
10256 }
10257
10258 /**
10259  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10260  * @phba: Pointer to HBA context object.
10261  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10262  *
10263  * This function is called in the SLI4 code path to read the port's
10264  * sli4 capabilities.
10265  *
10266  * This function may be be called from any context that can block-wait
10267  * for the completion.  The expectation is that this routine is called
10268  * typically from probe_one or from the online routine.
10269  **/
10270 int
10271 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10272 {
10273         int rc;
10274         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10275         struct lpfc_pc_sli4_params *sli4_params;
10276         uint32_t mbox_tmo;
10277         int length;
10278         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10279
10280         /*
10281          * By default, the driver assumes the SLI4 port requires RPI
10282          * header postings.  The SLI4_PARAM response will correct this
10283          * assumption.
10284          */
10285         phba->sli4_hba.rpi_hdrs_in_use = 1;
10286
10287         /* Read the port's SLI4 Config Parameters */
10288         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10289                   sizeof(struct lpfc_sli4_cfg_mhdr));
10290         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10291                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10292                          length, LPFC_SLI4_MBX_EMBED);
10293         if (!phba->sli4_hba.intr_enable)
10294                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10295         else {
10296                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10297                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10298         }
10299         if (unlikely(rc))
10300                 return rc;
10301         sli4_params = &phba->sli4_hba.pc_sli4_params;
10302         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10303         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10304         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10305         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10306         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10307                                              mbx_sli4_parameters);
10308         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10309                                              mbx_sli4_parameters);
10310         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10311                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10312         else
10313                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10314         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10315         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10316         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10317         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10318         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10319         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10320         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10321         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10322         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10323                                             mbx_sli4_parameters);
10324         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10325         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10326                                            mbx_sli4_parameters);
10327         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10328         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10329         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10330                               bf_get(cfg_xib, mbx_sli4_parameters));
10331
10332         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10333             !phba->nvme_support) {
10334                 phba->nvme_support = 0;
10335                 phba->nvmet_support = 0;
10336                 phba->cfg_nvmet_mrq = 0;
10337                 phba->cfg_nvme_io_channel = 0;
10338                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10339                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10340                                 "6101 Disabling NVME support: "
10341                                 "Not supported by firmware: %d %d\n",
10342                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10343                                 bf_get(cfg_xib, mbx_sli4_parameters));
10344
10345                 /* If firmware doesn't support NVME, just use SCSI support */
10346                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10347                         return -ENODEV;
10348                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10349         }
10350
10351         if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10352                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10353
10354         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10355                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10356
10357         /* Make sure that sge_supp_len can be handled by the driver */
10358         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10359                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10360
10361         /*
10362          * Issue IOs with CDB embedded in WQE to minimized the number
10363          * of DMAs the firmware has to do. Setting this to 1 also forces
10364          * the driver to use 128 bytes WQEs for FCP IOs.
10365          */
10366         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10367                 phba->fcp_embed_io = 1;
10368         else
10369                 phba->fcp_embed_io = 0;
10370
10371         /*
10372          * Check if the SLI port supports MDS Diagnostics
10373          */
10374         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10375                 phba->mds_diags_support = 1;
10376         else
10377                 phba->mds_diags_support = 0;
10378         return 0;
10379 }
10380
10381 /**
10382  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10383  * @pdev: pointer to PCI device
10384  * @pid: pointer to PCI device identifier
10385  *
10386  * This routine is to be called to attach a device with SLI-3 interface spec
10387  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10388  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10389  * information of the device and driver to see if the driver state that it can
10390  * support this kind of device. If the match is successful, the driver core
10391  * invokes this routine. If this routine determines it can claim the HBA, it
10392  * does all the initialization that it needs to do to handle the HBA properly.
10393  *
10394  * Return code
10395  *      0 - driver can claim the device
10396  *      negative value - driver can not claim the device
10397  **/
10398 static int
10399 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10400 {
10401         struct lpfc_hba   *phba;
10402         struct lpfc_vport *vport = NULL;
10403         struct Scsi_Host  *shost = NULL;
10404         int error;
10405         uint32_t cfg_mode, intr_mode;
10406
10407         /* Allocate memory for HBA structure */
10408         phba = lpfc_hba_alloc(pdev);
10409         if (!phba)
10410                 return -ENOMEM;
10411
10412         /* Perform generic PCI device enabling operation */
10413         error = lpfc_enable_pci_dev(phba);
10414         if (error)
10415                 goto out_free_phba;
10416
10417         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10418         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10419         if (error)
10420                 goto out_disable_pci_dev;
10421
10422         /* Set up SLI-3 specific device PCI memory space */
10423         error = lpfc_sli_pci_mem_setup(phba);
10424         if (error) {
10425                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10426                                 "1402 Failed to set up pci memory space.\n");
10427                 goto out_disable_pci_dev;
10428         }
10429
10430         /* Set up SLI-3 specific device driver resources */
10431         error = lpfc_sli_driver_resource_setup(phba);
10432         if (error) {
10433                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10434                                 "1404 Failed to set up driver resource.\n");
10435                 goto out_unset_pci_mem_s3;
10436         }
10437
10438         /* Initialize and populate the iocb list per host */
10439
10440         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10441         if (error) {
10442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10443                                 "1405 Failed to initialize iocb list.\n");
10444                 goto out_unset_driver_resource_s3;
10445         }
10446
10447         /* Set up common device driver resources */
10448         error = lpfc_setup_driver_resource_phase2(phba);
10449         if (error) {
10450                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10451                                 "1406 Failed to set up driver resource.\n");
10452                 goto out_free_iocb_list;
10453         }
10454
10455         /* Get the default values for Model Name and Description */
10456         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10457
10458         /* Create SCSI host to the physical port */
10459         error = lpfc_create_shost(phba);
10460         if (error) {
10461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10462                                 "1407 Failed to create scsi host.\n");
10463                 goto out_unset_driver_resource;
10464         }
10465
10466         /* Configure sysfs attributes */
10467         vport = phba->pport;
10468         error = lpfc_alloc_sysfs_attr(vport);
10469         if (error) {
10470                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10471                                 "1476 Failed to allocate sysfs attr\n");
10472                 goto out_destroy_shost;
10473         }
10474
10475         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10476         /* Now, trying to enable interrupt and bring up the device */
10477         cfg_mode = phba->cfg_use_msi;
10478         while (true) {
10479                 /* Put device to a known state before enabling interrupt */
10480                 lpfc_stop_port(phba);
10481                 /* Configure and enable interrupt */
10482                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10483                 if (intr_mode == LPFC_INTR_ERROR) {
10484                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10485                                         "0431 Failed to enable interrupt.\n");
10486                         error = -ENODEV;
10487                         goto out_free_sysfs_attr;
10488                 }
10489                 /* SLI-3 HBA setup */
10490                 if (lpfc_sli_hba_setup(phba)) {
10491                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10492                                         "1477 Failed to set up hba\n");
10493                         error = -ENODEV;
10494                         goto out_remove_device;
10495                 }
10496
10497                 /* Wait 50ms for the interrupts of previous mailbox commands */
10498                 msleep(50);
10499                 /* Check active interrupts on message signaled interrupts */
10500                 if (intr_mode == 0 ||
10501                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10502                         /* Log the current active interrupt mode */
10503                         phba->intr_mode = intr_mode;
10504                         lpfc_log_intr_mode(phba, intr_mode);
10505                         break;
10506                 } else {
10507                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10508                                         "0447 Configure interrupt mode (%d) "
10509                                         "failed active interrupt test.\n",
10510                                         intr_mode);
10511                         /* Disable the current interrupt mode */
10512                         lpfc_sli_disable_intr(phba);
10513                         /* Try next level of interrupt mode */
10514                         cfg_mode = --intr_mode;
10515                 }
10516         }
10517
10518         /* Perform post initialization setup */
10519         lpfc_post_init_setup(phba);
10520
10521         /* Check if there are static vports to be created. */
10522         lpfc_create_static_vport(phba);
10523
10524         return 0;
10525
10526 out_remove_device:
10527         lpfc_unset_hba(phba);
10528 out_free_sysfs_attr:
10529         lpfc_free_sysfs_attr(vport);
10530 out_destroy_shost:
10531         lpfc_destroy_shost(phba);
10532 out_unset_driver_resource:
10533         lpfc_unset_driver_resource_phase2(phba);
10534 out_free_iocb_list:
10535         lpfc_free_iocb_list(phba);
10536 out_unset_driver_resource_s3:
10537         lpfc_sli_driver_resource_unset(phba);
10538 out_unset_pci_mem_s3:
10539         lpfc_sli_pci_mem_unset(phba);
10540 out_disable_pci_dev:
10541         lpfc_disable_pci_dev(phba);
10542         if (shost)
10543                 scsi_host_put(shost);
10544 out_free_phba:
10545         lpfc_hba_free(phba);
10546         return error;
10547 }
10548
10549 /**
10550  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10551  * @pdev: pointer to PCI device
10552  *
10553  * This routine is to be called to disattach a device with SLI-3 interface
10554  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10555  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10556  * device to be removed from the PCI subsystem properly.
10557  **/
10558 static void
10559 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10560 {
10561         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10562         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10563         struct lpfc_vport **vports;
10564         struct lpfc_hba   *phba = vport->phba;
10565         int i;
10566
10567         spin_lock_irq(&phba->hbalock);
10568         vport->load_flag |= FC_UNLOADING;
10569         spin_unlock_irq(&phba->hbalock);
10570
10571         lpfc_free_sysfs_attr(vport);
10572
10573         /* Release all the vports against this physical port */
10574         vports = lpfc_create_vport_work_array(phba);
10575         if (vports != NULL)
10576                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10577                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10578                                 continue;
10579                         fc_vport_terminate(vports[i]->fc_vport);
10580                 }
10581         lpfc_destroy_vport_work_array(phba, vports);
10582
10583         /* Remove FC host and then SCSI host with the physical port */
10584         fc_remove_host(shost);
10585         scsi_remove_host(shost);
10586
10587         lpfc_cleanup(vport);
10588
10589         /*
10590          * Bring down the SLI Layer. This step disable all interrupts,
10591          * clears the rings, discards all mailbox commands, and resets
10592          * the HBA.
10593          */
10594
10595         /* HBA interrupt will be disabled after this call */
10596         lpfc_sli_hba_down(phba);
10597         /* Stop kthread signal shall trigger work_done one more time */
10598         kthread_stop(phba->worker_thread);
10599         /* Final cleanup of txcmplq and reset the HBA */
10600         lpfc_sli_brdrestart(phba);
10601
10602         kfree(phba->vpi_bmask);
10603         kfree(phba->vpi_ids);
10604
10605         lpfc_stop_hba_timers(phba);
10606         spin_lock_irq(&phba->hbalock);
10607         list_del_init(&vport->listentry);
10608         spin_unlock_irq(&phba->hbalock);
10609
10610         lpfc_debugfs_terminate(vport);
10611
10612         /* Disable SR-IOV if enabled */
10613         if (phba->cfg_sriov_nr_virtfn)
10614                 pci_disable_sriov(pdev);
10615
10616         /* Disable interrupt */
10617         lpfc_sli_disable_intr(phba);
10618
10619         scsi_host_put(shost);
10620
10621         /*
10622          * Call scsi_free before mem_free since scsi bufs are released to their
10623          * corresponding pools here.
10624          */
10625         lpfc_scsi_free(phba);
10626         lpfc_mem_free_all(phba);
10627
10628         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10629                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10630
10631         /* Free resources associated with SLI2 interface */
10632         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10633                           phba->slim2p.virt, phba->slim2p.phys);
10634
10635         /* unmap adapter SLIM and Control Registers */
10636         iounmap(phba->ctrl_regs_memmap_p);
10637         iounmap(phba->slim_memmap_p);
10638
10639         lpfc_hba_free(phba);
10640
10641         pci_release_mem_regions(pdev);
10642         pci_disable_device(pdev);
10643 }
10644
10645 /**
10646  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10647  * @pdev: pointer to PCI device
10648  * @msg: power management message
10649  *
10650  * This routine is to be called from the kernel's PCI subsystem to support
10651  * system Power Management (PM) to device with SLI-3 interface spec. When
10652  * PM invokes this method, it quiesces the device by stopping the driver's
10653  * worker thread for the device, turning off device's interrupt and DMA,
10654  * and bring the device offline. Note that as the driver implements the
10655  * minimum PM requirements to a power-aware driver's PM support for the
10656  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10657  * to the suspend() method call will be treated as SUSPEND and the driver will
10658  * fully reinitialize its device during resume() method call, the driver will
10659  * set device to PCI_D3hot state in PCI config space instead of setting it
10660  * according to the @msg provided by the PM.
10661  *
10662  * Return code
10663  *      0 - driver suspended the device
10664  *      Error otherwise
10665  **/
10666 static int
10667 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10668 {
10669         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10670         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10671
10672         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10673                         "0473 PCI device Power Management suspend.\n");
10674
10675         /* Bring down the device */
10676         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10677         lpfc_offline(phba);
10678         kthread_stop(phba->worker_thread);
10679
10680         /* Disable interrupt from device */
10681         lpfc_sli_disable_intr(phba);
10682
10683         /* Save device state to PCI config space */
10684         pci_save_state(pdev);
10685         pci_set_power_state(pdev, PCI_D3hot);
10686
10687         return 0;
10688 }
10689
10690 /**
10691  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10692  * @pdev: pointer to PCI device
10693  *
10694  * This routine is to be called from the kernel's PCI subsystem to support
10695  * system Power Management (PM) to device with SLI-3 interface spec. When PM
10696  * invokes this method, it restores the device's PCI config space state and
10697  * fully reinitializes the device and brings it online. Note that as the
10698  * driver implements the minimum PM requirements to a power-aware driver's
10699  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10700  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10701  * driver will fully reinitialize its device during resume() method call,
10702  * the device will be set to PCI_D0 directly in PCI config space before
10703  * restoring the state.
10704  *
10705  * Return code
10706  *      0 - driver suspended the device
10707  *      Error otherwise
10708  **/
10709 static int
10710 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10711 {
10712         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10713         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10714         uint32_t intr_mode;
10715         int error;
10716
10717         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10718                         "0452 PCI device Power Management resume.\n");
10719
10720         /* Restore device state from PCI config space */
10721         pci_set_power_state(pdev, PCI_D0);
10722         pci_restore_state(pdev);
10723
10724         /*
10725          * As the new kernel behavior of pci_restore_state() API call clears
10726          * device saved_state flag, need to save the restored state again.
10727          */
10728         pci_save_state(pdev);
10729
10730         if (pdev->is_busmaster)
10731                 pci_set_master(pdev);
10732
10733         /* Startup the kernel thread for this host adapter. */
10734         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10735                                         "lpfc_worker_%d", phba->brd_no);
10736         if (IS_ERR(phba->worker_thread)) {
10737                 error = PTR_ERR(phba->worker_thread);
10738                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10739                                 "0434 PM resume failed to start worker "
10740                                 "thread: error=x%x.\n", error);
10741                 return error;
10742         }
10743
10744         /* Configure and enable interrupt */
10745         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10746         if (intr_mode == LPFC_INTR_ERROR) {
10747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10748                                 "0430 PM resume Failed to enable interrupt\n");
10749                 return -EIO;
10750         } else
10751                 phba->intr_mode = intr_mode;
10752
10753         /* Restart HBA and bring it online */
10754         lpfc_sli_brdrestart(phba);
10755         lpfc_online(phba);
10756
10757         /* Log the current active interrupt mode */
10758         lpfc_log_intr_mode(phba, phba->intr_mode);
10759
10760         return 0;
10761 }
10762
10763 /**
10764  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10765  * @phba: pointer to lpfc hba data structure.
10766  *
10767  * This routine is called to prepare the SLI3 device for PCI slot recover. It
10768  * aborts all the outstanding SCSI I/Os to the pci device.
10769  **/
10770 static void
10771 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10772 {
10773         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10774                         "2723 PCI channel I/O abort preparing for recovery\n");
10775
10776         /*
10777          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10778          * and let the SCSI mid-layer to retry them to recover.
10779          */
10780         lpfc_sli_abort_fcp_rings(phba);
10781 }
10782
10783 /**
10784  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10785  * @phba: pointer to lpfc hba data structure.
10786  *
10787  * This routine is called to prepare the SLI3 device for PCI slot reset. It
10788  * disables the device interrupt and pci device, and aborts the internal FCP
10789  * pending I/Os.
10790  **/
10791 static void
10792 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10793 {
10794         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10795                         "2710 PCI channel disable preparing for reset\n");
10796
10797         /* Block any management I/Os to the device */
10798         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10799
10800         /* Block all SCSI devices' I/Os on the host */
10801         lpfc_scsi_dev_block(phba);
10802
10803         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10804         lpfc_sli_flush_fcp_rings(phba);
10805
10806         /* stop all timers */
10807         lpfc_stop_hba_timers(phba);
10808
10809         /* Disable interrupt and pci device */
10810         lpfc_sli_disable_intr(phba);
10811         pci_disable_device(phba->pcidev);
10812 }
10813
10814 /**
10815  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10816  * @phba: pointer to lpfc hba data structure.
10817  *
10818  * This routine is called to prepare the SLI3 device for PCI slot permanently
10819  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10820  * pending I/Os.
10821  **/
10822 static void
10823 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10824 {
10825         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10826                         "2711 PCI channel permanent disable for failure\n");
10827         /* Block all SCSI devices' I/Os on the host */
10828         lpfc_scsi_dev_block(phba);
10829
10830         /* stop all timers */
10831         lpfc_stop_hba_timers(phba);
10832
10833         /* Clean up all driver's outstanding SCSI I/Os */
10834         lpfc_sli_flush_fcp_rings(phba);
10835 }
10836
10837 /**
10838  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10839  * @pdev: pointer to PCI device.
10840  * @state: the current PCI connection state.
10841  *
10842  * This routine is called from the PCI subsystem for I/O error handling to
10843  * device with SLI-3 interface spec. This function is called by the PCI
10844  * subsystem after a PCI bus error affecting this device has been detected.
10845  * When this function is invoked, it will need to stop all the I/Os and
10846  * interrupt(s) to the device. Once that is done, it will return
10847  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10848  * as desired.
10849  *
10850  * Return codes
10851  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10852  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10853  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10854  **/
10855 static pci_ers_result_t
10856 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10857 {
10858         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10859         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10860
10861         switch (state) {
10862         case pci_channel_io_normal:
10863                 /* Non-fatal error, prepare for recovery */
10864                 lpfc_sli_prep_dev_for_recover(phba);
10865                 return PCI_ERS_RESULT_CAN_RECOVER;
10866         case pci_channel_io_frozen:
10867                 /* Fatal error, prepare for slot reset */
10868                 lpfc_sli_prep_dev_for_reset(phba);
10869                 return PCI_ERS_RESULT_NEED_RESET;
10870         case pci_channel_io_perm_failure:
10871                 /* Permanent failure, prepare for device down */
10872                 lpfc_sli_prep_dev_for_perm_failure(phba);
10873                 return PCI_ERS_RESULT_DISCONNECT;
10874         default:
10875                 /* Unknown state, prepare and request slot reset */
10876                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10877                                 "0472 Unknown PCI error state: x%x\n", state);
10878                 lpfc_sli_prep_dev_for_reset(phba);
10879                 return PCI_ERS_RESULT_NEED_RESET;
10880         }
10881 }
10882
10883 /**
10884  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10885  * @pdev: pointer to PCI device.
10886  *
10887  * This routine is called from the PCI subsystem for error handling to
10888  * device with SLI-3 interface spec. This is called after PCI bus has been
10889  * reset to restart the PCI card from scratch, as if from a cold-boot.
10890  * During the PCI subsystem error recovery, after driver returns
10891  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10892  * recovery and then call this routine before calling the .resume method
10893  * to recover the device. This function will initialize the HBA device,
10894  * enable the interrupt, but it will just put the HBA to offline state
10895  * without passing any I/O traffic.
10896  *
10897  * Return codes
10898  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10899  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10900  */
10901 static pci_ers_result_t
10902 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10903 {
10904         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10905         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10906         struct lpfc_sli *psli = &phba->sli;
10907         uint32_t intr_mode;
10908
10909         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10910         if (pci_enable_device_mem(pdev)) {
10911                 printk(KERN_ERR "lpfc: Cannot re-enable "
10912                         "PCI device after reset.\n");
10913                 return PCI_ERS_RESULT_DISCONNECT;
10914         }
10915
10916         pci_restore_state(pdev);
10917
10918         /*
10919          * As the new kernel behavior of pci_restore_state() API call clears
10920          * device saved_state flag, need to save the restored state again.
10921          */
10922         pci_save_state(pdev);
10923
10924         if (pdev->is_busmaster)
10925                 pci_set_master(pdev);
10926
10927         spin_lock_irq(&phba->hbalock);
10928         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10929         spin_unlock_irq(&phba->hbalock);
10930
10931         /* Configure and enable interrupt */
10932         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10933         if (intr_mode == LPFC_INTR_ERROR) {
10934                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10935                                 "0427 Cannot re-enable interrupt after "
10936                                 "slot reset.\n");
10937                 return PCI_ERS_RESULT_DISCONNECT;
10938         } else
10939                 phba->intr_mode = intr_mode;
10940
10941         /* Take device offline, it will perform cleanup */
10942         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10943         lpfc_offline(phba);
10944         lpfc_sli_brdrestart(phba);
10945
10946         /* Log the current active interrupt mode */
10947         lpfc_log_intr_mode(phba, phba->intr_mode);
10948
10949         return PCI_ERS_RESULT_RECOVERED;
10950 }
10951
10952 /**
10953  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10954  * @pdev: pointer to PCI device
10955  *
10956  * This routine is called from the PCI subsystem for error handling to device
10957  * with SLI-3 interface spec. It is called when kernel error recovery tells
10958  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10959  * error recovery. After this call, traffic can start to flow from this device
10960  * again.
10961  */
10962 static void
10963 lpfc_io_resume_s3(struct pci_dev *pdev)
10964 {
10965         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10966         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10967
10968         /* Bring device online, it will be no-op for non-fatal error resume */
10969         lpfc_online(phba);
10970
10971         /* Clean up Advanced Error Reporting (AER) if needed */
10972         if (phba->hba_flag & HBA_AER_ENABLED)
10973                 pci_cleanup_aer_uncorrect_error_status(pdev);
10974 }
10975
10976 /**
10977  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10978  * @phba: pointer to lpfc hba data structure.
10979  *
10980  * returns the number of ELS/CT IOCBs to reserve
10981  **/
10982 int
10983 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10984 {
10985         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10986
10987         if (phba->sli_rev == LPFC_SLI_REV4) {
10988                 if (max_xri <= 100)
10989                         return 10;
10990                 else if (max_xri <= 256)
10991                         return 25;
10992                 else if (max_xri <= 512)
10993                         return 50;
10994                 else if (max_xri <= 1024)
10995                         return 100;
10996                 else if (max_xri <= 1536)
10997                         return 150;
10998                 else if (max_xri <= 2048)
10999                         return 200;
11000                 else
11001                         return 250;
11002         } else
11003                 return 0;
11004 }
11005
11006 /**
11007  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11008  * @phba: pointer to lpfc hba data structure.
11009  *
11010  * returns the number of ELS/CT + NVMET IOCBs to reserve
11011  **/
11012 int
11013 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11014 {
11015         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11016
11017         if (phba->nvmet_support)
11018                 max_xri += LPFC_NVMET_BUF_POST;
11019         return max_xri;
11020 }
11021
11022
11023 /**
11024  * lpfc_write_firmware - attempt to write a firmware image to the port
11025  * @fw: pointer to firmware image returned from request_firmware.
11026  * @phba: pointer to lpfc hba data structure.
11027  *
11028  **/
11029 static void
11030 lpfc_write_firmware(const struct firmware *fw, void *context)
11031 {
11032         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11033         char fwrev[FW_REV_STR_SIZE];
11034         struct lpfc_grp_hdr *image;
11035         struct list_head dma_buffer_list;
11036         int i, rc = 0;
11037         struct lpfc_dmabuf *dmabuf, *next;
11038         uint32_t offset = 0, temp_offset = 0;
11039         uint32_t magic_number, ftype, fid, fsize;
11040
11041         /* It can be null in no-wait mode, sanity check */
11042         if (!fw) {
11043                 rc = -ENXIO;
11044                 goto out;
11045         }
11046         image = (struct lpfc_grp_hdr *)fw->data;
11047
11048         magic_number = be32_to_cpu(image->magic_number);
11049         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11050         fid = bf_get_be32(lpfc_grp_hdr_id, image),
11051         fsize = be32_to_cpu(image->size);
11052
11053         INIT_LIST_HEAD(&dma_buffer_list);
11054         if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
11055              magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
11056             ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
11057                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11058                                 "3022 Invalid FW image found. "
11059                                 "Magic:%x Type:%x ID:%x Size %d %zd\n",
11060                                 magic_number, ftype, fid, fsize, fw->size);
11061                 rc = -EINVAL;
11062                 goto release_out;
11063         }
11064         lpfc_decode_firmware_rev(phba, fwrev, 1);
11065         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11066                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11067                                 "3023 Updating Firmware, Current Version:%s "
11068                                 "New Version:%s\n",
11069                                 fwrev, image->revision);
11070                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11071                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11072                                          GFP_KERNEL);
11073                         if (!dmabuf) {
11074                                 rc = -ENOMEM;
11075                                 goto release_out;
11076                         }
11077                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11078                                                           SLI4_PAGE_SIZE,
11079                                                           &dmabuf->phys,
11080                                                           GFP_KERNEL);
11081                         if (!dmabuf->virt) {
11082                                 kfree(dmabuf);
11083                                 rc = -ENOMEM;
11084                                 goto release_out;
11085                         }
11086                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11087                 }
11088                 while (offset < fw->size) {
11089                         temp_offset = offset;
11090                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11091                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11092                                         memcpy(dmabuf->virt,
11093                                                fw->data + temp_offset,
11094                                                fw->size - temp_offset);
11095                                         temp_offset = fw->size;
11096                                         break;
11097                                 }
11098                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11099                                        SLI4_PAGE_SIZE);
11100                                 temp_offset += SLI4_PAGE_SIZE;
11101                         }
11102                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11103                                     (fw->size - offset), &offset);
11104                         if (rc)
11105                                 goto release_out;
11106                 }
11107                 rc = offset;
11108         }
11109
11110 release_out:
11111         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11112                 list_del(&dmabuf->list);
11113                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11114                                   dmabuf->virt, dmabuf->phys);
11115                 kfree(dmabuf);
11116         }
11117         release_firmware(fw);
11118 out:
11119         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11120                         "3024 Firmware update done: %d.\n", rc);
11121         return;
11122 }
11123
11124 /**
11125  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11126  * @phba: pointer to lpfc hba data structure.
11127  *
11128  * This routine is called to perform Linux generic firmware upgrade on device
11129  * that supports such feature.
11130  **/
11131 int
11132 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11133 {
11134         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11135         int ret;
11136         const struct firmware *fw;
11137
11138         /* Only supported on SLI4 interface type 2 for now */
11139         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11140             LPFC_SLI_INTF_IF_TYPE_2)
11141                 return -EPERM;
11142
11143         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11144
11145         if (fw_upgrade == INT_FW_UPGRADE) {
11146                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11147                                         file_name, &phba->pcidev->dev,
11148                                         GFP_KERNEL, (void *)phba,
11149                                         lpfc_write_firmware);
11150         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11151                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11152                 if (!ret)
11153                         lpfc_write_firmware(fw, (void *)phba);
11154         } else {
11155                 ret = -EINVAL;
11156         }
11157
11158         return ret;
11159 }
11160
11161 /**
11162  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11163  * @pdev: pointer to PCI device
11164  * @pid: pointer to PCI device identifier
11165  *
11166  * This routine is called from the kernel's PCI subsystem to device with
11167  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11168  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11169  * information of the device and driver to see if the driver state that it
11170  * can support this kind of device. If the match is successful, the driver
11171  * core invokes this routine. If this routine determines it can claim the HBA,
11172  * it does all the initialization that it needs to do to handle the HBA
11173  * properly.
11174  *
11175  * Return code
11176  *      0 - driver can claim the device
11177  *      negative value - driver can not claim the device
11178  **/
11179 static int
11180 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11181 {
11182         struct lpfc_hba   *phba;
11183         struct lpfc_vport *vport = NULL;
11184         struct Scsi_Host  *shost = NULL;
11185         int error;
11186         uint32_t cfg_mode, intr_mode;
11187
11188         /* Allocate memory for HBA structure */
11189         phba = lpfc_hba_alloc(pdev);
11190         if (!phba)
11191                 return -ENOMEM;
11192
11193         /* Perform generic PCI device enabling operation */
11194         error = lpfc_enable_pci_dev(phba);
11195         if (error)
11196                 goto out_free_phba;
11197
11198         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11199         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11200         if (error)
11201                 goto out_disable_pci_dev;
11202
11203         /* Set up SLI-4 specific device PCI memory space */
11204         error = lpfc_sli4_pci_mem_setup(phba);
11205         if (error) {
11206                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11207                                 "1410 Failed to set up pci memory space.\n");
11208                 goto out_disable_pci_dev;
11209         }
11210
11211         /* Set up SLI-4 Specific device driver resources */
11212         error = lpfc_sli4_driver_resource_setup(phba);
11213         if (error) {
11214                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11215                                 "1412 Failed to set up driver resource.\n");
11216                 goto out_unset_pci_mem_s4;
11217         }
11218
11219         INIT_LIST_HEAD(&phba->active_rrq_list);
11220         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11221
11222         /* Set up common device driver resources */
11223         error = lpfc_setup_driver_resource_phase2(phba);
11224         if (error) {
11225                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11226                                 "1414 Failed to set up driver resource.\n");
11227                 goto out_unset_driver_resource_s4;
11228         }
11229
11230         /* Get the default values for Model Name and Description */
11231         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11232
11233         /* Create SCSI host to the physical port */
11234         error = lpfc_create_shost(phba);
11235         if (error) {
11236                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11237                                 "1415 Failed to create scsi host.\n");
11238                 goto out_unset_driver_resource;
11239         }
11240
11241         /* Configure sysfs attributes */
11242         vport = phba->pport;
11243         error = lpfc_alloc_sysfs_attr(vport);
11244         if (error) {
11245                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11246                                 "1416 Failed to allocate sysfs attr\n");
11247                 goto out_destroy_shost;
11248         }
11249
11250         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11251         /* Now, trying to enable interrupt and bring up the device */
11252         cfg_mode = phba->cfg_use_msi;
11253
11254         /* Put device to a known state before enabling interrupt */
11255         lpfc_stop_port(phba);
11256
11257         /* Configure and enable interrupt */
11258         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11259         if (intr_mode == LPFC_INTR_ERROR) {
11260                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11261                                 "0426 Failed to enable interrupt.\n");
11262                 error = -ENODEV;
11263                 goto out_free_sysfs_attr;
11264         }
11265         /* Default to single EQ for non-MSI-X */
11266         if (phba->intr_type != MSIX) {
11267                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11268                         phba->cfg_fcp_io_channel = 1;
11269                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11270                         phba->cfg_nvme_io_channel = 1;
11271                         if (phba->nvmet_support)
11272                                 phba->cfg_nvmet_mrq = 1;
11273                 }
11274                 phba->io_channel_irqs = 1;
11275         }
11276
11277         /* Set up SLI-4 HBA */
11278         if (lpfc_sli4_hba_setup(phba)) {
11279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11280                                 "1421 Failed to set up hba\n");
11281                 error = -ENODEV;
11282                 goto out_disable_intr;
11283         }
11284
11285         /* Log the current active interrupt mode */
11286         phba->intr_mode = intr_mode;
11287         lpfc_log_intr_mode(phba, intr_mode);
11288
11289         /* Perform post initialization setup */
11290         lpfc_post_init_setup(phba);
11291
11292         /* NVME support in FW earlier in the driver load corrects the
11293          * FC4 type making a check for nvme_support unnecessary.
11294          */
11295         if ((phba->nvmet_support == 0) &&
11296             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11297                 /* Create NVME binding with nvme_fc_transport. This
11298                  * ensures the vport is initialized.  If the localport
11299                  * create fails, it should not unload the driver to
11300                  * support field issues.
11301                  */
11302                 error = lpfc_nvme_create_localport(vport);
11303                 if (error) {
11304                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11305                                         "6004 NVME registration failed, "
11306                                         "error x%x\n",
11307                                         error);
11308                 }
11309         }
11310
11311         /* check for firmware upgrade or downgrade */
11312         if (phba->cfg_request_firmware_upgrade)
11313                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11314
11315         /* Check if there are static vports to be created. */
11316         lpfc_create_static_vport(phba);
11317         return 0;
11318
11319 out_disable_intr:
11320         lpfc_sli4_disable_intr(phba);
11321 out_free_sysfs_attr:
11322         lpfc_free_sysfs_attr(vport);
11323 out_destroy_shost:
11324         lpfc_destroy_shost(phba);
11325 out_unset_driver_resource:
11326         lpfc_unset_driver_resource_phase2(phba);
11327 out_unset_driver_resource_s4:
11328         lpfc_sli4_driver_resource_unset(phba);
11329 out_unset_pci_mem_s4:
11330         lpfc_sli4_pci_mem_unset(phba);
11331 out_disable_pci_dev:
11332         lpfc_disable_pci_dev(phba);
11333         if (shost)
11334                 scsi_host_put(shost);
11335 out_free_phba:
11336         lpfc_hba_free(phba);
11337         return error;
11338 }
11339
11340 /**
11341  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11342  * @pdev: pointer to PCI device
11343  *
11344  * This routine is called from the kernel's PCI subsystem to device with
11345  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11346  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11347  * device to be removed from the PCI subsystem properly.
11348  **/
11349 static void
11350 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11351 {
11352         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11353         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11354         struct lpfc_vport **vports;
11355         struct lpfc_hba *phba = vport->phba;
11356         int i;
11357
11358         /* Mark the device unloading flag */
11359         spin_lock_irq(&phba->hbalock);
11360         vport->load_flag |= FC_UNLOADING;
11361         spin_unlock_irq(&phba->hbalock);
11362
11363         /* Free the HBA sysfs attributes */
11364         lpfc_free_sysfs_attr(vport);
11365
11366         /* Release all the vports against this physical port */
11367         vports = lpfc_create_vport_work_array(phba);
11368         if (vports != NULL)
11369                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11370                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11371                                 continue;
11372                         fc_vport_terminate(vports[i]->fc_vport);
11373                 }
11374         lpfc_destroy_vport_work_array(phba, vports);
11375
11376         /* Remove FC host and then SCSI host with the physical port */
11377         fc_remove_host(shost);
11378         scsi_remove_host(shost);
11379
11380         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11381          * localports are destroyed after to cleanup all transport memory.
11382          */
11383         lpfc_cleanup(vport);
11384         lpfc_nvmet_destroy_targetport(phba);
11385         lpfc_nvme_destroy_localport(vport);
11386
11387         /*
11388          * Bring down the SLI Layer. This step disables all interrupts,
11389          * clears the rings, discards all mailbox commands, and resets
11390          * the HBA FCoE function.
11391          */
11392         lpfc_debugfs_terminate(vport);
11393         lpfc_sli4_hba_unset(phba);
11394
11395         spin_lock_irq(&phba->hbalock);
11396         list_del_init(&vport->listentry);
11397         spin_unlock_irq(&phba->hbalock);
11398
11399         /* Perform scsi free before driver resource_unset since scsi
11400          * buffers are released to their corresponding pools here.
11401          */
11402         lpfc_scsi_free(phba);
11403         lpfc_nvme_free(phba);
11404         lpfc_free_iocb_list(phba);
11405
11406         lpfc_sli4_driver_resource_unset(phba);
11407
11408         /* Unmap adapter Control and Doorbell registers */
11409         lpfc_sli4_pci_mem_unset(phba);
11410
11411         /* Release PCI resources and disable device's PCI function */
11412         scsi_host_put(shost);
11413         lpfc_disable_pci_dev(phba);
11414
11415         /* Finally, free the driver's device data structure */
11416         lpfc_hba_free(phba);
11417
11418         return;
11419 }
11420
11421 /**
11422  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11423  * @pdev: pointer to PCI device
11424  * @msg: power management message
11425  *
11426  * This routine is called from the kernel's PCI subsystem to support system
11427  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11428  * this method, it quiesces the device by stopping the driver's worker
11429  * thread for the device, turning off device's interrupt and DMA, and bring
11430  * the device offline. Note that as the driver implements the minimum PM
11431  * requirements to a power-aware driver's PM support for suspend/resume -- all
11432  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11433  * method call will be treated as SUSPEND and the driver will fully
11434  * reinitialize its device during resume() method call, the driver will set
11435  * device to PCI_D3hot state in PCI config space instead of setting it
11436  * according to the @msg provided by the PM.
11437  *
11438  * Return code
11439  *      0 - driver suspended the device
11440  *      Error otherwise
11441  **/
11442 static int
11443 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11444 {
11445         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11446         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11447
11448         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11449                         "2843 PCI device Power Management suspend.\n");
11450
11451         /* Bring down the device */
11452         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11453         lpfc_offline(phba);
11454         kthread_stop(phba->worker_thread);
11455
11456         /* Disable interrupt from device */
11457         lpfc_sli4_disable_intr(phba);
11458         lpfc_sli4_queue_destroy(phba);
11459
11460         /* Save device state to PCI config space */
11461         pci_save_state(pdev);
11462         pci_set_power_state(pdev, PCI_D3hot);
11463
11464         return 0;
11465 }
11466
11467 /**
11468  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11469  * @pdev: pointer to PCI device
11470  *
11471  * This routine is called from the kernel's PCI subsystem to support system
11472  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11473  * this method, it restores the device's PCI config space state and fully
11474  * reinitializes the device and brings it online. Note that as the driver
11475  * implements the minimum PM requirements to a power-aware driver's PM for
11476  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11477  * to the suspend() method call will be treated as SUSPEND and the driver
11478  * will fully reinitialize its device during resume() method call, the device
11479  * will be set to PCI_D0 directly in PCI config space before restoring the
11480  * state.
11481  *
11482  * Return code
11483  *      0 - driver suspended the device
11484  *      Error otherwise
11485  **/
11486 static int
11487 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11488 {
11489         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11490         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11491         uint32_t intr_mode;
11492         int error;
11493
11494         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11495                         "0292 PCI device Power Management resume.\n");
11496
11497         /* Restore device state from PCI config space */
11498         pci_set_power_state(pdev, PCI_D0);
11499         pci_restore_state(pdev);
11500
11501         /*
11502          * As the new kernel behavior of pci_restore_state() API call clears
11503          * device saved_state flag, need to save the restored state again.
11504          */
11505         pci_save_state(pdev);
11506
11507         if (pdev->is_busmaster)
11508                 pci_set_master(pdev);
11509
11510          /* Startup the kernel thread for this host adapter. */
11511         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11512                                         "lpfc_worker_%d", phba->brd_no);
11513         if (IS_ERR(phba->worker_thread)) {
11514                 error = PTR_ERR(phba->worker_thread);
11515                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11516                                 "0293 PM resume failed to start worker "
11517                                 "thread: error=x%x.\n", error);
11518                 return error;
11519         }
11520
11521         /* Configure and enable interrupt */
11522         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11523         if (intr_mode == LPFC_INTR_ERROR) {
11524                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11525                                 "0294 PM resume Failed to enable interrupt\n");
11526                 return -EIO;
11527         } else
11528                 phba->intr_mode = intr_mode;
11529
11530         /* Restart HBA and bring it online */
11531         lpfc_sli_brdrestart(phba);
11532         lpfc_online(phba);
11533
11534         /* Log the current active interrupt mode */
11535         lpfc_log_intr_mode(phba, phba->intr_mode);
11536
11537         return 0;
11538 }
11539
11540 /**
11541  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11542  * @phba: pointer to lpfc hba data structure.
11543  *
11544  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11545  * aborts all the outstanding SCSI I/Os to the pci device.
11546  **/
11547 static void
11548 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11549 {
11550         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11551                         "2828 PCI channel I/O abort preparing for recovery\n");
11552         /*
11553          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11554          * and let the SCSI mid-layer to retry them to recover.
11555          */
11556         lpfc_sli_abort_fcp_rings(phba);
11557 }
11558
11559 /**
11560  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11561  * @phba: pointer to lpfc hba data structure.
11562  *
11563  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11564  * disables the device interrupt and pci device, and aborts the internal FCP
11565  * pending I/Os.
11566  **/
11567 static void
11568 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11569 {
11570         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11571                         "2826 PCI channel disable preparing for reset\n");
11572
11573         /* Block any management I/Os to the device */
11574         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11575
11576         /* Block all SCSI devices' I/Os on the host */
11577         lpfc_scsi_dev_block(phba);
11578
11579         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11580         lpfc_sli_flush_fcp_rings(phba);
11581
11582         /* stop all timers */
11583         lpfc_stop_hba_timers(phba);
11584
11585         /* Disable interrupt and pci device */
11586         lpfc_sli4_disable_intr(phba);
11587         lpfc_sli4_queue_destroy(phba);
11588         pci_disable_device(phba->pcidev);
11589 }
11590
11591 /**
11592  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11593  * @phba: pointer to lpfc hba data structure.
11594  *
11595  * This routine is called to prepare the SLI4 device for PCI slot permanently
11596  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11597  * pending I/Os.
11598  **/
11599 static void
11600 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11601 {
11602         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11603                         "2827 PCI channel permanent disable for failure\n");
11604
11605         /* Block all SCSI devices' I/Os on the host */
11606         lpfc_scsi_dev_block(phba);
11607
11608         /* stop all timers */
11609         lpfc_stop_hba_timers(phba);
11610
11611         /* Clean up all driver's outstanding SCSI I/Os */
11612         lpfc_sli_flush_fcp_rings(phba);
11613 }
11614
11615 /**
11616  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11617  * @pdev: pointer to PCI device.
11618  * @state: the current PCI connection state.
11619  *
11620  * This routine is called from the PCI subsystem for error handling to device
11621  * with SLI-4 interface spec. This function is called by the PCI subsystem
11622  * after a PCI bus error affecting this device has been detected. When this
11623  * function is invoked, it will need to stop all the I/Os and interrupt(s)
11624  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11625  * for the PCI subsystem to perform proper recovery as desired.
11626  *
11627  * Return codes
11628  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11629  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11630  **/
11631 static pci_ers_result_t
11632 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11633 {
11634         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11635         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11636
11637         switch (state) {
11638         case pci_channel_io_normal:
11639                 /* Non-fatal error, prepare for recovery */
11640                 lpfc_sli4_prep_dev_for_recover(phba);
11641                 return PCI_ERS_RESULT_CAN_RECOVER;
11642         case pci_channel_io_frozen:
11643                 /* Fatal error, prepare for slot reset */
11644                 lpfc_sli4_prep_dev_for_reset(phba);
11645                 return PCI_ERS_RESULT_NEED_RESET;
11646         case pci_channel_io_perm_failure:
11647                 /* Permanent failure, prepare for device down */
11648                 lpfc_sli4_prep_dev_for_perm_failure(phba);
11649                 return PCI_ERS_RESULT_DISCONNECT;
11650         default:
11651                 /* Unknown state, prepare and request slot reset */
11652                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11653                                 "2825 Unknown PCI error state: x%x\n", state);
11654                 lpfc_sli4_prep_dev_for_reset(phba);
11655                 return PCI_ERS_RESULT_NEED_RESET;
11656         }
11657 }
11658
11659 /**
11660  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11661  * @pdev: pointer to PCI device.
11662  *
11663  * This routine is called from the PCI subsystem for error handling to device
11664  * with SLI-4 interface spec. It is called after PCI bus has been reset to
11665  * restart the PCI card from scratch, as if from a cold-boot. During the
11666  * PCI subsystem error recovery, after the driver returns
11667  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11668  * recovery and then call this routine before calling the .resume method to
11669  * recover the device. This function will initialize the HBA device, enable
11670  * the interrupt, but it will just put the HBA to offline state without
11671  * passing any I/O traffic.
11672  *
11673  * Return codes
11674  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11675  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11676  */
11677 static pci_ers_result_t
11678 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11679 {
11680         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11681         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11682         struct lpfc_sli *psli = &phba->sli;
11683         uint32_t intr_mode;
11684
11685         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11686         if (pci_enable_device_mem(pdev)) {
11687                 printk(KERN_ERR "lpfc: Cannot re-enable "
11688                         "PCI device after reset.\n");
11689                 return PCI_ERS_RESULT_DISCONNECT;
11690         }
11691
11692         pci_restore_state(pdev);
11693
11694         /*
11695          * As the new kernel behavior of pci_restore_state() API call clears
11696          * device saved_state flag, need to save the restored state again.
11697          */
11698         pci_save_state(pdev);
11699
11700         if (pdev->is_busmaster)
11701                 pci_set_master(pdev);
11702
11703         spin_lock_irq(&phba->hbalock);
11704         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11705         spin_unlock_irq(&phba->hbalock);
11706
11707         /* Configure and enable interrupt */
11708         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11709         if (intr_mode == LPFC_INTR_ERROR) {
11710                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11711                                 "2824 Cannot re-enable interrupt after "
11712                                 "slot reset.\n");
11713                 return PCI_ERS_RESULT_DISCONNECT;
11714         } else
11715                 phba->intr_mode = intr_mode;
11716
11717         /* Log the current active interrupt mode */
11718         lpfc_log_intr_mode(phba, phba->intr_mode);
11719
11720         return PCI_ERS_RESULT_RECOVERED;
11721 }
11722
11723 /**
11724  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11725  * @pdev: pointer to PCI device
11726  *
11727  * This routine is called from the PCI subsystem for error handling to device
11728  * with SLI-4 interface spec. It is called when kernel error recovery tells
11729  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11730  * error recovery. After this call, traffic can start to flow from this device
11731  * again.
11732  **/
11733 static void
11734 lpfc_io_resume_s4(struct pci_dev *pdev)
11735 {
11736         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11737         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11738
11739         /*
11740          * In case of slot reset, as function reset is performed through
11741          * mailbox command which needs DMA to be enabled, this operation
11742          * has to be moved to the io resume phase. Taking device offline
11743          * will perform the necessary cleanup.
11744          */
11745         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11746                 /* Perform device reset */
11747                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11748                 lpfc_offline(phba);
11749                 lpfc_sli_brdrestart(phba);
11750                 /* Bring the device back online */
11751                 lpfc_online(phba);
11752         }
11753
11754         /* Clean up Advanced Error Reporting (AER) if needed */
11755         if (phba->hba_flag & HBA_AER_ENABLED)
11756                 pci_cleanup_aer_uncorrect_error_status(pdev);
11757 }
11758
11759 /**
11760  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11761  * @pdev: pointer to PCI device
11762  * @pid: pointer to PCI device identifier
11763  *
11764  * This routine is to be registered to the kernel's PCI subsystem. When an
11765  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11766  * at PCI device-specific information of the device and driver to see if the
11767  * driver state that it can support this kind of device. If the match is
11768  * successful, the driver core invokes this routine. This routine dispatches
11769  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11770  * do all the initialization that it needs to do to handle the HBA device
11771  * properly.
11772  *
11773  * Return code
11774  *      0 - driver can claim the device
11775  *      negative value - driver can not claim the device
11776  **/
11777 static int
11778 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11779 {
11780         int rc;
11781         struct lpfc_sli_intf intf;
11782
11783         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11784                 return -ENODEV;
11785
11786         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11787             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11788                 rc = lpfc_pci_probe_one_s4(pdev, pid);
11789         else
11790                 rc = lpfc_pci_probe_one_s3(pdev, pid);
11791
11792         return rc;
11793 }
11794
11795 /**
11796  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11797  * @pdev: pointer to PCI device
11798  *
11799  * This routine is to be registered to the kernel's PCI subsystem. When an
11800  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11801  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11802  * remove routine, which will perform all the necessary cleanup for the
11803  * device to be removed from the PCI subsystem properly.
11804  **/
11805 static void
11806 lpfc_pci_remove_one(struct pci_dev *pdev)
11807 {
11808         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11809         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11810
11811         switch (phba->pci_dev_grp) {
11812         case LPFC_PCI_DEV_LP:
11813                 lpfc_pci_remove_one_s3(pdev);
11814                 break;
11815         case LPFC_PCI_DEV_OC:
11816                 lpfc_pci_remove_one_s4(pdev);
11817                 break;
11818         default:
11819                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11820                                 "1424 Invalid PCI device group: 0x%x\n",
11821                                 phba->pci_dev_grp);
11822                 break;
11823         }
11824         return;
11825 }
11826
11827 /**
11828  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11829  * @pdev: pointer to PCI device
11830  * @msg: power management message
11831  *
11832  * This routine is to be registered to the kernel's PCI subsystem to support
11833  * system Power Management (PM). When PM invokes this method, it dispatches
11834  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11835  * suspend the device.
11836  *
11837  * Return code
11838  *      0 - driver suspended the device
11839  *      Error otherwise
11840  **/
11841 static int
11842 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11843 {
11844         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11845         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11846         int rc = -ENODEV;
11847
11848         switch (phba->pci_dev_grp) {
11849         case LPFC_PCI_DEV_LP:
11850                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11851                 break;
11852         case LPFC_PCI_DEV_OC:
11853                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11854                 break;
11855         default:
11856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11857                                 "1425 Invalid PCI device group: 0x%x\n",
11858                                 phba->pci_dev_grp);
11859                 break;
11860         }
11861         return rc;
11862 }
11863
11864 /**
11865  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11866  * @pdev: pointer to PCI device
11867  *
11868  * This routine is to be registered to the kernel's PCI subsystem to support
11869  * system Power Management (PM). When PM invokes this method, it dispatches
11870  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11871  * resume the device.
11872  *
11873  * Return code
11874  *      0 - driver suspended the device
11875  *      Error otherwise
11876  **/
11877 static int
11878 lpfc_pci_resume_one(struct pci_dev *pdev)
11879 {
11880         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11881         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11882         int rc = -ENODEV;
11883
11884         switch (phba->pci_dev_grp) {
11885         case LPFC_PCI_DEV_LP:
11886                 rc = lpfc_pci_resume_one_s3(pdev);
11887                 break;
11888         case LPFC_PCI_DEV_OC:
11889                 rc = lpfc_pci_resume_one_s4(pdev);
11890                 break;
11891         default:
11892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11893                                 "1426 Invalid PCI device group: 0x%x\n",
11894                                 phba->pci_dev_grp);
11895                 break;
11896         }
11897         return rc;
11898 }
11899
11900 /**
11901  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11902  * @pdev: pointer to PCI device.
11903  * @state: the current PCI connection state.
11904  *
11905  * This routine is registered to the PCI subsystem for error handling. This
11906  * function is called by the PCI subsystem after a PCI bus error affecting
11907  * this device has been detected. When this routine is invoked, it dispatches
11908  * the action to the proper SLI-3 or SLI-4 device error detected handling
11909  * routine, which will perform the proper error detected operation.
11910  *
11911  * Return codes
11912  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11913  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11914  **/
11915 static pci_ers_result_t
11916 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11917 {
11918         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11919         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11920         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11921
11922         switch (phba->pci_dev_grp) {
11923         case LPFC_PCI_DEV_LP:
11924                 rc = lpfc_io_error_detected_s3(pdev, state);
11925                 break;
11926         case LPFC_PCI_DEV_OC:
11927                 rc = lpfc_io_error_detected_s4(pdev, state);
11928                 break;
11929         default:
11930                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11931                                 "1427 Invalid PCI device group: 0x%x\n",
11932                                 phba->pci_dev_grp);
11933                 break;
11934         }
11935         return rc;
11936 }
11937
11938 /**
11939  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11940  * @pdev: pointer to PCI device.
11941  *
11942  * This routine is registered to the PCI subsystem for error handling. This
11943  * function is called after PCI bus has been reset to restart the PCI card
11944  * from scratch, as if from a cold-boot. When this routine is invoked, it
11945  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11946  * routine, which will perform the proper device reset.
11947  *
11948  * Return codes
11949  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11950  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11951  **/
11952 static pci_ers_result_t
11953 lpfc_io_slot_reset(struct pci_dev *pdev)
11954 {
11955         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11956         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11957         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11958
11959         switch (phba->pci_dev_grp) {
11960         case LPFC_PCI_DEV_LP:
11961                 rc = lpfc_io_slot_reset_s3(pdev);
11962                 break;
11963         case LPFC_PCI_DEV_OC:
11964                 rc = lpfc_io_slot_reset_s4(pdev);
11965                 break;
11966         default:
11967                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11968                                 "1428 Invalid PCI device group: 0x%x\n",
11969                                 phba->pci_dev_grp);
11970                 break;
11971         }
11972         return rc;
11973 }
11974
11975 /**
11976  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11977  * @pdev: pointer to PCI device
11978  *
11979  * This routine is registered to the PCI subsystem for error handling. It
11980  * is called when kernel error recovery tells the lpfc driver that it is
11981  * OK to resume normal PCI operation after PCI bus error recovery. When
11982  * this routine is invoked, it dispatches the action to the proper SLI-3
11983  * or SLI-4 device io_resume routine, which will resume the device operation.
11984  **/
11985 static void
11986 lpfc_io_resume(struct pci_dev *pdev)
11987 {
11988         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11989         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11990
11991         switch (phba->pci_dev_grp) {
11992         case LPFC_PCI_DEV_LP:
11993                 lpfc_io_resume_s3(pdev);
11994                 break;
11995         case LPFC_PCI_DEV_OC:
11996                 lpfc_io_resume_s4(pdev);
11997                 break;
11998         default:
11999                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12000                                 "1429 Invalid PCI device group: 0x%x\n",
12001                                 phba->pci_dev_grp);
12002                 break;
12003         }
12004         return;
12005 }
12006
12007 /**
12008  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12009  * @phba: pointer to lpfc hba data structure.
12010  *
12011  * This routine checks to see if OAS is supported for this adapter. If
12012  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12013  * the enable oas flag is cleared and the pool created for OAS device data
12014  * is destroyed.
12015  *
12016  **/
12017 void
12018 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12019 {
12020
12021         if (!phba->cfg_EnableXLane)
12022                 return;
12023
12024         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12025                 phba->cfg_fof = 1;
12026         } else {
12027                 phba->cfg_fof = 0;
12028                 if (phba->device_data_mem_pool)
12029                         mempool_destroy(phba->device_data_mem_pool);
12030                 phba->device_data_mem_pool = NULL;
12031         }
12032
12033         return;
12034 }
12035
12036 /**
12037  * lpfc_fof_queue_setup - Set up all the fof queues
12038  * @phba: pointer to lpfc hba data structure.
12039  *
12040  * This routine is invoked to set up all the fof queues for the FC HBA
12041  * operation.
12042  *
12043  * Return codes
12044  *      0 - successful
12045  *      -ENOMEM - No available memory
12046  **/
12047 int
12048 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12049 {
12050         struct lpfc_sli_ring *pring;
12051         int rc;
12052
12053         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12054         if (rc)
12055                 return -ENOMEM;
12056
12057         if (phba->cfg_fof) {
12058
12059                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12060                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12061                 if (rc)
12062                         goto out_oas_cq;
12063
12064                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12065                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12066                 if (rc)
12067                         goto out_oas_wq;
12068
12069                 /* Bind this CQ/WQ to the NVME ring */
12070                 pring = phba->sli4_hba.oas_wq->pring;
12071                 pring->sli.sli4.wqp =
12072                         (void *)phba->sli4_hba.oas_wq;
12073                 phba->sli4_hba.oas_cq->pring = pring;
12074         }
12075
12076         return 0;
12077
12078 out_oas_wq:
12079         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12080 out_oas_cq:
12081         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12082         return rc;
12083
12084 }
12085
12086 /**
12087  * lpfc_fof_queue_create - Create all the fof queues
12088  * @phba: pointer to lpfc hba data structure.
12089  *
12090  * This routine is invoked to allocate all the fof queues for the FC HBA
12091  * operation. For each SLI4 queue type, the parameters such as queue entry
12092  * count (queue depth) shall be taken from the module parameter. For now,
12093  * we just use some constant number as place holder.
12094  *
12095  * Return codes
12096  *      0 - successful
12097  *      -ENOMEM - No availble memory
12098  *      -EIO - The mailbox failed to complete successfully.
12099  **/
12100 int
12101 lpfc_fof_queue_create(struct lpfc_hba *phba)
12102 {
12103         struct lpfc_queue *qdesc;
12104         uint32_t wqesize;
12105
12106         /* Create FOF EQ */
12107         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
12108                                       phba->sli4_hba.eq_ecount);
12109         if (!qdesc)
12110                 goto out_error;
12111
12112         phba->sli4_hba.fof_eq = qdesc;
12113
12114         if (phba->cfg_fof) {
12115
12116                 /* Create OAS CQ */
12117                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12118                                                       phba->sli4_hba.cq_ecount);
12119                 if (!qdesc)
12120                         goto out_error;
12121
12122                 phba->sli4_hba.oas_cq = qdesc;
12123
12124                 /* Create OAS WQ */
12125                 wqesize = (phba->fcp_embed_io) ?
12126                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12127                 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12128                                               phba->sli4_hba.wq_ecount);
12129
12130                 if (!qdesc)
12131                         goto out_error;
12132
12133                 phba->sli4_hba.oas_wq = qdesc;
12134                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12135
12136         }
12137         return 0;
12138
12139 out_error:
12140         lpfc_fof_queue_destroy(phba);
12141         return -ENOMEM;
12142 }
12143
12144 /**
12145  * lpfc_fof_queue_destroy - Destroy all the fof queues
12146  * @phba: pointer to lpfc hba data structure.
12147  *
12148  * This routine is invoked to release all the SLI4 queues with the FC HBA
12149  * operation.
12150  *
12151  * Return codes
12152  *      0 - successful
12153  **/
12154 int
12155 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12156 {
12157         /* Release FOF Event queue */
12158         if (phba->sli4_hba.fof_eq != NULL) {
12159                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12160                 phba->sli4_hba.fof_eq = NULL;
12161         }
12162
12163         /* Release OAS Completion queue */
12164         if (phba->sli4_hba.oas_cq != NULL) {
12165                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12166                 phba->sli4_hba.oas_cq = NULL;
12167         }
12168
12169         /* Release OAS Work queue */
12170         if (phba->sli4_hba.oas_wq != NULL) {
12171                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12172                 phba->sli4_hba.oas_wq = NULL;
12173         }
12174         return 0;
12175 }
12176
12177 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12178
12179 static const struct pci_error_handlers lpfc_err_handler = {
12180         .error_detected = lpfc_io_error_detected,
12181         .slot_reset = lpfc_io_slot_reset,
12182         .resume = lpfc_io_resume,
12183 };
12184
12185 static struct pci_driver lpfc_driver = {
12186         .name           = LPFC_DRIVER_NAME,
12187         .id_table       = lpfc_id_table,
12188         .probe          = lpfc_pci_probe_one,
12189         .remove         = lpfc_pci_remove_one,
12190         .shutdown       = lpfc_pci_remove_one,
12191         .suspend        = lpfc_pci_suspend_one,
12192         .resume         = lpfc_pci_resume_one,
12193         .err_handler    = &lpfc_err_handler,
12194 };
12195
12196 static const struct file_operations lpfc_mgmt_fop = {
12197         .owner = THIS_MODULE,
12198 };
12199
12200 static struct miscdevice lpfc_mgmt_dev = {
12201         .minor = MISC_DYNAMIC_MINOR,
12202         .name = "lpfcmgmt",
12203         .fops = &lpfc_mgmt_fop,
12204 };
12205
12206 /**
12207  * lpfc_init - lpfc module initialization routine
12208  *
12209  * This routine is to be invoked when the lpfc module is loaded into the
12210  * kernel. The special kernel macro module_init() is used to indicate the
12211  * role of this routine to the kernel as lpfc module entry point.
12212  *
12213  * Return codes
12214  *   0 - successful
12215  *   -ENOMEM - FC attach transport failed
12216  *   all others - failed
12217  */
12218 static int __init
12219 lpfc_init(void)
12220 {
12221         int error = 0;
12222
12223         printk(LPFC_MODULE_DESC "\n");
12224         printk(LPFC_COPYRIGHT "\n");
12225
12226         error = misc_register(&lpfc_mgmt_dev);
12227         if (error)
12228                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12229                         "misc_register returned with status %d", error);
12230
12231         lpfc_transport_functions.vport_create = lpfc_vport_create;
12232         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12233         lpfc_transport_template =
12234                                 fc_attach_transport(&lpfc_transport_functions);
12235         if (lpfc_transport_template == NULL)
12236                 return -ENOMEM;
12237         lpfc_vport_transport_template =
12238                 fc_attach_transport(&lpfc_vport_transport_functions);
12239         if (lpfc_vport_transport_template == NULL) {
12240                 fc_release_transport(lpfc_transport_template);
12241                 return -ENOMEM;
12242         }
12243
12244         /* Initialize in case vector mapping is needed */
12245         lpfc_used_cpu = NULL;
12246         lpfc_present_cpu = num_present_cpus();
12247
12248         error = pci_register_driver(&lpfc_driver);
12249         if (error) {
12250                 fc_release_transport(lpfc_transport_template);
12251                 fc_release_transport(lpfc_vport_transport_template);
12252         }
12253
12254         return error;
12255 }
12256
12257 /**
12258  * lpfc_exit - lpfc module removal routine
12259  *
12260  * This routine is invoked when the lpfc module is removed from the kernel.
12261  * The special kernel macro module_exit() is used to indicate the role of
12262  * this routine to the kernel as lpfc module exit point.
12263  */
12264 static void __exit
12265 lpfc_exit(void)
12266 {
12267         misc_deregister(&lpfc_mgmt_dev);
12268         pci_unregister_driver(&lpfc_driver);
12269         fc_release_transport(lpfc_transport_template);
12270         fc_release_transport(lpfc_vport_transport_template);
12271         if (_dump_buf_data) {
12272                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12273                                 "_dump_buf_data at 0x%p\n",
12274                                 (1L << _dump_buf_data_order), _dump_buf_data);
12275                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12276         }
12277
12278         if (_dump_buf_dif) {
12279                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12280                                 "_dump_buf_dif at 0x%p\n",
12281                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12282                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12283         }
12284         kfree(lpfc_used_cpu);
12285         idr_destroy(&lpfc_hba_index);
12286 }
12287
12288 module_init(lpfc_init);
12289 module_exit(lpfc_exit);
12290 MODULE_LICENSE("GPL");
12291 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12292 MODULE_AUTHOR("Broadcom");
12293 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);