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) 2004-2011 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/kthread.h>
  28 #include <linux/pci.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/ctype.h>
  31 #include <linux/aer.h>
  32 #include <linux/slab.h>
  33
  34 #include <scsi/scsi.h>
  35 #include <scsi/scsi_device.h>
  36 #include <scsi/scsi_host.h>
  37 #include <scsi/scsi_transport_fc.h>
  38
  39 #include "lpfc_hw4.h"
  40 #include "lpfc_hw.h"
  41 #include "lpfc_sli.h"
  42 #include "lpfc_sli4.h"
  43 #include "lpfc_nl.h"
  44 #include "lpfc_disc.h"
  45 #include "lpfc_scsi.h"
  46 #include "lpfc.h"
  47 #include "lpfc_logmsg.h"
  48 #include "lpfc_crtn.h"
  49 #include "lpfc_vport.h"
  50 #include "lpfc_version.h"
  51
  52 char *_dump_buf_data;
  53 unsigned long _dump_buf_data_order;
  54 char *_dump_buf_dif;
  55 unsigned long _dump_buf_dif_order;
  56 spinlock_t _dump_buf_lock;
  57
  58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  59 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  60 static int lpfc_sli4_queue_create(struct lpfc_hba *);
  61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
  62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  63 static int lpfc_setup_endian_order(struct lpfc_hba *);
  64 static int lpfc_sli4_read_config(struct lpfc_hba *);
  65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  66 static void lpfc_free_sgl_list(struct lpfc_hba *);
  67 static int lpfc_init_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  69 static void lpfc_free_active_sgl(struct lpfc_hba *);
  70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  75
  76 static struct scsi_transport_template *lpfc_transport_template = NULL;
  77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  78 static DEFINE_IDR(lpfc_hba_index);
  79
  80 /**
  81  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  82  * @phba: pointer to lpfc hba data structure.
  83  *
  84  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  85  * mailbox command. It retrieves the revision information from the HBA and
  86  * collects the Vital Product Data (VPD) about the HBA for preparing the
  87  * configuration of the HBA.
  88  *
  89  * Return codes:
  90  *   0 - success.
  91  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  92  *   Any other value - indicates an error.
  93  **/
  94 int
  95 lpfc_config_port_prep(struct lpfc_hba *phba)
  96 {
  97         lpfc_vpd_t *vp = &phba->vpd;
  98         int i = 0, rc;
  99         LPFC_MBOXQ_t *pmb;
 100         MAILBOX_t *mb;
 101         char *lpfc_vpd_data = NULL;
 102         uint16_t offset = 0;
 103         static char licensed[56] =
 104                     "key unlock for use with gnu public licensed code only\0";
 105         static int init_key = 1;
 106
 107         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 108         if (!pmb) {
 109                 phba->link_state = LPFC_HBA_ERROR;
 110                 return -ENOMEM;
 111         }
 112
 113         mb = &pmb->u.mb;
 114         phba->link_state = LPFC_INIT_MBX_CMDS;
 115
 116         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 117                 if (init_key) {
 118                         uint32_t *ptext = (uint32_t *) licensed;
 119
 120                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 121                                 *ptext = cpu_to_be32(*ptext);
 122                         init_key = 0;
 123                 }
 124
 125                 lpfc_read_nv(phba, pmb);
 126                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 127                         sizeof (mb->un.varRDnvp.rsvd3));
 128                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 129                          sizeof (licensed));
 130
 131                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 132
 133                 if (rc != MBX_SUCCESS) {
 134                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 135                                         "0324 Config Port initialization "
 136                                         "error, mbxCmd x%x READ_NVPARM, "
 137                                         "mbxStatus x%x\n",
 138                                         mb->mbxCommand, mb->mbxStatus);
 139                         mempool_free(pmb, phba->mbox_mem_pool);
 140                         return -ERESTART;
 141                 }
 142                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 143                        sizeof(phba->wwnn));
 144                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 145                        sizeof(phba->wwpn));
 146         }
 147
 148         phba->sli3_options = 0x0;
 149
 150         /* Setup and issue mailbox READ REV command */
 151         lpfc_read_rev(phba, pmb);
 152         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153         if (rc != MBX_SUCCESS) {
 154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 155                                 "0439 Adapter failed to init, mbxCmd x%x "
 156                                 "READ_REV, mbxStatus x%x\n",
 157                                 mb->mbxCommand, mb->mbxStatus);
 158                 mempool_free( pmb, phba->mbox_mem_pool);
 159                 return -ERESTART;
 160         }
 161
 162
 163         /*
 164          * The value of rr must be 1 since the driver set the cv field to 1.
 165          * This setting requires the FW to set all revision fields.
 166          */
 167         if (mb->un.varRdRev.rr == 0) {
 168                 vp->rev.rBit = 0;
 169                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 170                                 "0440 Adapter failed to init, READ_REV has "
 171                                 "missing revision information.\n");
 172                 mempool_free(pmb, phba->mbox_mem_pool);
 173                 return -ERESTART;
 174         }
 175
 176         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 177                 mempool_free(pmb, phba->mbox_mem_pool);
 178                 return -EINVAL;
 179         }
 180
 181         /* Save information as VPD data */
 182         vp->rev.rBit = 1;
 183         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 184         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 185         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 186         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 187         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 188         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 189         vp->rev.smRev = mb->un.varRdRev.smRev;
 190         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 191         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 192         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 193         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 194         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 195         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 196         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 197         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 198
 199         /* If the sli feature level is less then 9, we must
 200          * tear down all RPIs and VPIs on link down if NPIV
 201          * is enabled.
 202          */
 203         if (vp->rev.feaLevelHigh < 9)
 204                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 205
 206         if (lpfc_is_LC_HBA(phba->pcidev->device))
 207                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 208                                                 sizeof (phba->RandomData));
 209
 210         /* Get adapter VPD information */
 211         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 212         if (!lpfc_vpd_data)
 213                 goto out_free_mbox;
 214
 215         do {
 216                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 217                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 218
 219                 if (rc != MBX_SUCCESS) {
 220                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 221                                         "0441 VPD not present on adapter, "
 222                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 223                                         mb->mbxCommand, mb->mbxStatus);
 224                         mb->un.varDmp.word_cnt = 0;
 225                 }
 226                 /* dump mem may return a zero when finished or we got a
 227                  * mailbox error, either way we are done.
 228                  */
 229                 if (mb->un.varDmp.word_cnt == 0)
 230                         break;
 231                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 232                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 233                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 234                                       lpfc_vpd_data + offset,
 235                                       mb->un.varDmp.word_cnt);
 236                 offset += mb->un.varDmp.word_cnt;
 237         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 238         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 239
 240         kfree(lpfc_vpd_data);
 241 out_free_mbox:
 242         mempool_free(pmb, phba->mbox_mem_pool);
 243         return 0;
 244 }
 245
 246 /**
 247  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 248  * @phba: pointer to lpfc hba data structure.
 249  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 250  *
 251  * This is the completion handler for driver's configuring asynchronous event
 252  * mailbox command to the device. If the mailbox command returns successfully,
 253  * it will set internal async event support flag to 1; otherwise, it will
 254  * set internal async event support flag to 0.
 255  **/
 256 static void
 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 258 {
 259         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 260                 phba->temp_sensor_support = 1;
 261         else
 262                 phba->temp_sensor_support = 0;
 263         mempool_free(pmboxq, phba->mbox_mem_pool);
 264         return;
 265 }
 266
 267 /**
 268  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for dump mailbox command for getting
 273  * wake up parameters. When this command complete, the response contain
 274  * Option rom version of the HBA. This function translate the version number
 275  * into a human readable string and store it in OptionROMVersion.
 276  **/
 277 static void
 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 279 {
 280         struct prog_id *prg;
 281         uint32_t prog_id_word;
 282         char dist = ' ';
 283         /* character array used for decoding dist type. */
 284         char dist_char[] = "nabx";
 285
 286         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 287                 mempool_free(pmboxq, phba->mbox_mem_pool);
 288                 return;
 289         }
 290
 291         prg = (struct prog_id *) &prog_id_word;
 292
 293         /* word 7 contain option rom version */
 294         prog_id_word = pmboxq->u.mb.un.varWords[7];
 295
 296         /* Decode the Option rom version word to a readable string */
 297         if (prg->dist < 4)
 298                 dist = dist_char[prg->dist];
 299
 300         if ((prg->dist == 3) && (prg->num == 0))
 301                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 302                         prg->ver, prg->rev, prg->lev);
 303         else
 304                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 305                         prg->ver, prg->rev, prg->lev,
 306                         dist, prg->num);
 307         mempool_free(pmboxq, phba->mbox_mem_pool);
 308         return;
 309 }
 310
 311 /**
 312  * lpfc_config_port_post - Perform lpfc initialization after config port
 313  * @phba: pointer to lpfc hba data structure.
 314  *
 315  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 316  * command call. It performs all internal resource and state setups on the
 317  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 318  * ELS ring timers, etc.
 319  *
 320  * Return codes
 321  *   0 - success.
 322  *   Any other value - error.
 323  **/
 324 int
 325 lpfc_config_port_post(struct lpfc_hba *phba)
 326 {
 327         struct lpfc_vport *vport = phba->pport;
 328         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 329         LPFC_MBOXQ_t *pmb;
 330         MAILBOX_t *mb;
 331         struct lpfc_dmabuf *mp;
 332         struct lpfc_sli *psli = &phba->sli;
 333         uint32_t status, timeout;
 334         int i, j;
 335         int rc;
 336
 337         spin_lock_irq(&phba->hbalock);
 338         /*
 339          * If the Config port completed correctly the HBA is not
 340          * over heated any more.
 341          */
 342         if (phba->over_temp_state == HBA_OVER_TEMP)
 343                 phba->over_temp_state = HBA_NORMAL_TEMP;
 344         spin_unlock_irq(&phba->hbalock);
 345
 346         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 347         if (!pmb) {
 348                 phba->link_state = LPFC_HBA_ERROR;
 349                 return -ENOMEM;
 350         }
 351         mb = &pmb->u.mb;
 352
 353         /* Get login parameters for NID.  */
 354         rc = lpfc_read_sparam(phba, pmb, 0);
 355         if (rc) {
 356                 mempool_free(pmb, phba->mbox_mem_pool);
 357                 return -ENOMEM;
 358         }
 359
 360         pmb->vport = vport;
 361         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 363                                 "0448 Adapter failed init, mbxCmd x%x "
 364                                 "READ_SPARM mbxStatus x%x\n",
 365                                 mb->mbxCommand, mb->mbxStatus);
 366                 phba->link_state = LPFC_HBA_ERROR;
 367                 mp = (struct lpfc_dmabuf *) pmb->context1;
 368                 mempool_free(pmb, phba->mbox_mem_pool);
 369                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 370                 kfree(mp);
 371                 return -EIO;
 372         }
 373
 374         mp = (struct lpfc_dmabuf *) pmb->context1;
 375
 376         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 377         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 378         kfree(mp);
 379         pmb->context1 = NULL;
 380
 381         if (phba->cfg_soft_wwnn)
 382                 u64_to_wwn(phba->cfg_soft_wwnn,
 383                            vport->fc_sparam.nodeName.u.wwn);
 384         if (phba->cfg_soft_wwpn)
 385                 u64_to_wwn(phba->cfg_soft_wwpn,
 386                            vport->fc_sparam.portName.u.wwn);
 387         memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 388                sizeof (struct lpfc_name));
 389         memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 390                sizeof (struct lpfc_name));
 391
 392         /* Update the fc_host data structures with new wwn. */
 393         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 394         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 395         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 396
 397         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 398         /* This should be consolidated into parse_vpd ? - mr */
 399         if (phba->SerialNumber[0] == 0) {
 400                 uint8_t *outptr;
 401
 402                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 403                 for (i = 0; i < 12; i++) {
 404                         status = *outptr++;
 405                         j = ((status & 0xf0) >> 4);
 406                         if (j <= 9)
 407                                 phba->SerialNumber[i] =
 408                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 409                         else
 410                                 phba->SerialNumber[i] =
 411                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 412                         i++;
 413                         j = (status & 0xf);
 414                         if (j <= 9)
 415                                 phba->SerialNumber[i] =
 416                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 417                         else
 418                                 phba->SerialNumber[i] =
 419                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 420                 }
 421         }
 422
 423         lpfc_read_config(phba, pmb);
 424         pmb->vport = vport;
 425         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 427                                 "0453 Adapter failed to init, mbxCmd x%x "
 428                                 "READ_CONFIG, mbxStatus x%x\n",
 429                                 mb->mbxCommand, mb->mbxStatus);
 430                 phba->link_state = LPFC_HBA_ERROR;
 431                 mempool_free( pmb, phba->mbox_mem_pool);
 432                 return -EIO;
 433         }
 434
 435         /* Check if the port is disabled */
 436         lpfc_sli_read_link_ste(phba);
 437
 438         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 439         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 440                 phba->cfg_hba_queue_depth =
 441                         (mb->un.varRdConfig.max_xri + 1) -
 442                                         lpfc_sli4_get_els_iocb_cnt(phba);
 443
 444         phba->lmt = mb->un.varRdConfig.lmt;
 445
 446         /* Get the default values for Model Name and Description */
 447         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 448
 449         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
 450             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
 451                 && !(phba->lmt & LMT_1Gb))
 452             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
 453                 && !(phba->lmt & LMT_2Gb))
 454             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
 455                 && !(phba->lmt & LMT_4Gb))
 456             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
 457                 && !(phba->lmt & LMT_8Gb))
 458             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
 459                 && !(phba->lmt & LMT_10Gb))
 460             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
 461                 && !(phba->lmt & LMT_16Gb))) {
 462                 /* Reset link speed to auto */
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 464                         "1302 Invalid speed for this board: "
 465                         "Reset link speed to auto: x%x\n",
 466                         phba->cfg_link_speed);
 467                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 468         }
 469
 470         phba->link_state = LPFC_LINK_DOWN;
 471
 472         /* Only process IOCBs on ELS ring till hba_state is READY */
 473         if (psli->ring[psli->extra_ring].cmdringaddr)
 474                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 475         if (psli->ring[psli->fcp_ring].cmdringaddr)
 476                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 477         if (psli->ring[psli->next_ring].cmdringaddr)
 478                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 479
 480         /* Post receive buffers for desired rings */
 481         if (phba->sli_rev != 3)
 482                 lpfc_post_rcv_buf(phba);
 483
 484         /*
 485          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 486          */
 487         if (phba->intr_type == MSIX) {
 488                 rc = lpfc_config_msi(phba, pmb);
 489                 if (rc) {
 490                         mempool_free(pmb, phba->mbox_mem_pool);
 491                         return -EIO;
 492                 }
 493                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 494                 if (rc != MBX_SUCCESS) {
 495                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 496                                         "0352 Config MSI mailbox command "
 497                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 498                                         pmb->u.mb.mbxCommand,
 499                                         pmb->u.mb.mbxStatus);
 500                         mempool_free(pmb, phba->mbox_mem_pool);
 501                         return -EIO;
 502                 }
 503         }
 504
 505         spin_lock_irq(&phba->hbalock);
 506         /* Initialize ERATT handling flag */
 507         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 508
 509         /* Enable appropriate host interrupts */
 510         if (lpfc_readl(phba->HCregaddr, &status)) {
 511                 spin_unlock_irq(&phba->hbalock);
 512                 return -EIO;
 513         }
 514         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 515         if (psli->num_rings > 0)
 516                 status |= HC_R0INT_ENA;
 517         if (psli->num_rings > 1)
 518                 status |= HC_R1INT_ENA;
 519         if (psli->num_rings > 2)
 520                 status |= HC_R2INT_ENA;
 521         if (psli->num_rings > 3)
 522                 status |= HC_R3INT_ENA;
 523
 524         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 525             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 526                 status &= ~(HC_R0INT_ENA);
 527
 528         writel(status, phba->HCregaddr);
 529         readl(phba->HCregaddr); /* flush */
 530         spin_unlock_irq(&phba->hbalock);
 531
 532         /* Set up ring-0 (ELS) timer */
 533         timeout = phba->fc_ratov * 2;
 534         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 535         /* Set up heart beat (HB) timer */
 536         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 537         phba->hb_outstanding = 0;
 538         phba->last_completion_time = jiffies;
 539         /* Set up error attention (ERATT) polling timer */
 540         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 541
 542         if (phba->hba_flag & LINK_DISABLED) {
 543                 lpfc_printf_log(phba,
 544                         KERN_ERR, LOG_INIT,
 545                         "2598 Adapter Link is disabled.\n");
 546                 lpfc_down_link(phba, pmb);
 547                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 548                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 549                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 550                         lpfc_printf_log(phba,
 551                         KERN_ERR, LOG_INIT,
 552                         "2599 Adapter failed to issue DOWN_LINK"
 553                         " mbox command rc 0x%x\n", rc);
 554
 555                         mempool_free(pmb, phba->mbox_mem_pool);
 556                         return -EIO;
 557                 }
 558         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 559                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 560                         phba->cfg_link_speed);
 561                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 562                 lpfc_set_loopback_flag(phba);
 563                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 564                 if (rc != MBX_SUCCESS) {
 565                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 566                                 "0454 Adapter failed to init, mbxCmd x%x "
 567                                 "INIT_LINK, mbxStatus x%x\n",
 568                                 mb->mbxCommand, mb->mbxStatus);
 569
 570                         /* Clear all interrupt enable conditions */
 571                         writel(0, phba->HCregaddr);
 572                         readl(phba->HCregaddr); /* flush */
 573                         /* Clear all pending interrupts */
 574                         writel(0xffffffff, phba->HAregaddr);
 575                         readl(phba->HAregaddr); /* flush */
 576
 577                         phba->link_state = LPFC_HBA_ERROR;
 578                         if (rc != MBX_BUSY)
 579                                 mempool_free(pmb, phba->mbox_mem_pool);
 580                         return -EIO;
 581                 }
 582         }
 583         /* MBOX buffer will be freed in mbox compl */
 584         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 585         if (!pmb) {
 586                 phba->link_state = LPFC_HBA_ERROR;
 587                 return -ENOMEM;
 588         }
 589
 590         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 591         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 592         pmb->vport = phba->pport;
 593         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 594
 595         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 596                 lpfc_printf_log(phba,
 597                                 KERN_ERR,
 598                                 LOG_INIT,
 599                                 "0456 Adapter failed to issue "
 600                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 601                                 rc);
 602                 mempool_free(pmb, phba->mbox_mem_pool);
 603         }
 604
 605         /* Get Option rom version */
 606         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 607         if (!pmb) {
 608                 phba->link_state = LPFC_HBA_ERROR;
 609                 return -ENOMEM;
 610         }
 611
 612         lpfc_dump_wakeup_param(phba, pmb);
 613         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 614         pmb->vport = phba->pport;
 615         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 616
 617         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 618                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 619                                 "to get Option ROM version status x%x\n", rc);
 620                 mempool_free(pmb, phba->mbox_mem_pool);
 621         }
 622
 623         return 0;
 624 }
 625
 626 /**
 627  * lpfc_hba_init_link - Initialize the FC link
 628  * @phba: pointer to lpfc hba data structure.
 629  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 630  *
 631  * This routine will issue the INIT_LINK mailbox command call.
 632  * It is available to other drivers through the lpfc_hba data
 633  * structure for use as a delayed link up mechanism with the
 634  * module parameter lpfc_suppress_link_up.
 635  *
 636  * Return code
 637  *              0 - success
 638  *              Any other value - error
 639  **/
 640 int
 641 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 642 {
 643         struct lpfc_vport *vport = phba->pport;
 644         LPFC_MBOXQ_t *pmb;
 645         MAILBOX_t *mb;
 646         int rc;
 647
 648         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 649         if (!pmb) {
 650                 phba->link_state = LPFC_HBA_ERROR;
 651                 return -ENOMEM;
 652         }
 653         mb = &pmb->u.mb;
 654         pmb->vport = vport;
 655
 656         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 657         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 658         lpfc_set_loopback_flag(phba);
 659         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 660         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 661                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 662                         "0498 Adapter failed to init, mbxCmd x%x "
 663                         "INIT_LINK, mbxStatus x%x\n",
 664                         mb->mbxCommand, mb->mbxStatus);
 665                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 666                         /* Clear all interrupt enable conditions */
 667                         writel(0, phba->HCregaddr);
 668                         readl(phba->HCregaddr); /* flush */
 669                         /* Clear all pending interrupts */
 670                         writel(0xffffffff, phba->HAregaddr);
 671                         readl(phba->HAregaddr); /* flush */
 672                 }
 673                 phba->link_state = LPFC_HBA_ERROR;
 674                 if (rc != MBX_BUSY || flag == MBX_POLL)
 675                         mempool_free(pmb, phba->mbox_mem_pool);
 676                 return -EIO;
 677         }
 678         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 679         if (flag == MBX_POLL)
 680                 mempool_free(pmb, phba->mbox_mem_pool);
 681
 682         return 0;
 683 }
 684
 685 /**
 686  * lpfc_hba_down_link - this routine downs the FC link
 687  * @phba: pointer to lpfc hba data structure.
 688  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 689  *
 690  * This routine will issue the DOWN_LINK mailbox command call.
 691  * It is available to other drivers through the lpfc_hba data
 692  * structure for use to stop the link.
 693  *
 694  * Return code
 695  *              0 - success
 696  *              Any other value - error
 697  **/
 698 int
 699 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 700 {
 701         LPFC_MBOXQ_t *pmb;
 702         int rc;
 703
 704         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 705         if (!pmb) {
 706                 phba->link_state = LPFC_HBA_ERROR;
 707                 return -ENOMEM;
 708         }
 709
 710         lpfc_printf_log(phba,
 711                 KERN_ERR, LOG_INIT,
 712                 "0491 Adapter Link is disabled.\n");
 713         lpfc_down_link(phba, pmb);
 714         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 715         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 716         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 717                 lpfc_printf_log(phba,
 718                 KERN_ERR, LOG_INIT,
 719                 "2522 Adapter failed to issue DOWN_LINK"
 720                 " mbox command rc 0x%x\n", rc);
 721
 722                 mempool_free(pmb, phba->mbox_mem_pool);
 723                 return -EIO;
 724         }
 725         if (flag == MBX_POLL)
 726                 mempool_free(pmb, phba->mbox_mem_pool);
 727
 728         return 0;
 729 }
 730
 731 /**
 732  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 733  * @phba: pointer to lpfc HBA data structure.
 734  *
 735  * This routine will do LPFC uninitialization before the HBA is reset when
 736  * bringing down the SLI Layer.
 737  *
 738  * Return codes
 739  *   0 - success.
 740  *   Any other value - error.
 741  **/
 742 int
 743 lpfc_hba_down_prep(struct lpfc_hba *phba)
 744 {
 745         struct lpfc_vport **vports;
 746         int i;
 747
 748         if (phba->sli_rev <= LPFC_SLI_REV3) {
 749                 /* Disable interrupts */
 750                 writel(0, phba->HCregaddr);
 751                 readl(phba->HCregaddr); /* flush */
 752         }
 753
 754         if (phba->pport->load_flag & FC_UNLOADING)
 755                 lpfc_cleanup_discovery_resources(phba->pport);
 756         else {
 757                 vports = lpfc_create_vport_work_array(phba);
 758                 if (vports != NULL)
 759                         for (i = 0; i <= phba->max_vports &&
 760                                 vports[i] != NULL; i++)
 761                                 lpfc_cleanup_discovery_resources(vports[i]);
 762                 lpfc_destroy_vport_work_array(phba, vports);
 763         }
 764         return 0;
 765 }
 766
 767 /**
 768  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 769  * @phba: pointer to lpfc HBA data structure.
 770  *
 771  * This routine will do uninitialization after the HBA is reset when bring
 772  * down the SLI Layer.
 773  *
 774  * Return codes
 775  *   0 - success.
 776  *   Any other value - error.
 777  **/
 778 static int
 779 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 780 {
 781         struct lpfc_sli *psli = &phba->sli;
 782         struct lpfc_sli_ring *pring;
 783         struct lpfc_dmabuf *mp, *next_mp;
 784         LIST_HEAD(completions);
 785         int i;
 786
 787         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 788                 lpfc_sli_hbqbuf_free_all(phba);
 789         else {
 790                 /* Cleanup preposted buffers on the ELS ring */
 791                 pring = &psli->ring[LPFC_ELS_RING];
 792                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 793                         list_del(&mp->list);
 794                         pring->postbufq_cnt--;
 795                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 796                         kfree(mp);
 797                 }
 798         }
 799
 800         spin_lock_irq(&phba->hbalock);
 801         for (i = 0; i < psli->num_rings; i++) {
 802                 pring = &psli->ring[i];
 803
 804                 /* At this point in time the HBA is either reset or DOA. Either
 805                  * way, nothing should be on txcmplq as it will NEVER complete.
 806                  */
 807                 list_splice_init(&pring->txcmplq, &completions);
 808                 pring->txcmplq_cnt = 0;
 809                 spin_unlock_irq(&phba->hbalock);
 810
 811                 /* Cancel all the IOCBs from the completions list */
 812                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 813                                       IOERR_SLI_ABORTED);
 814
 815                 lpfc_sli_abort_iocb_ring(phba, pring);
 816                 spin_lock_irq(&phba->hbalock);
 817         }
 818         spin_unlock_irq(&phba->hbalock);
 819
 820         return 0;
 821 }
 822
 823 /**
 824  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 825  * @phba: pointer to lpfc HBA data structure.
 826  *
 827  * This routine will do uninitialization after the HBA is reset when bring
 828  * down the SLI Layer.
 829  *
 830  * Return codes
 831  *   0 - success.
 832  *   Any other value - error.
 833  **/
 834 static int
 835 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 836 {
 837         struct lpfc_scsi_buf *psb, *psb_next;
 838         LIST_HEAD(aborts);
 839         int ret;
 840         unsigned long iflag = 0;
 841         struct lpfc_sglq *sglq_entry = NULL;
 842
 843         ret = lpfc_hba_down_post_s3(phba);
 844         if (ret)
 845                 return ret;
 846         /* At this point in time the HBA is either reset or DOA. Either
 847          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 848          * on the lpfc_sgl_list so that it can either be freed if the
 849          * driver is unloading or reposted if the driver is restarting
 850          * the port.
 851          */
 852         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 853                                         /* scsl_buf_list */
 854         /* abts_sgl_list_lock required because worker thread uses this
 855          * list.
 856          */
 857         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 858         list_for_each_entry(sglq_entry,
 859                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 860                 sglq_entry->state = SGL_FREED;
 861
 862         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 863                         &phba->sli4_hba.lpfc_sgl_list);
 864         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 865         /* abts_scsi_buf_list_lock required because worker thread uses this
 866          * list.
 867          */
 868         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 869         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 870                         &aborts);
 871         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 872         spin_unlock_irq(&phba->hbalock);
 873
 874         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 875                 psb->pCmd = NULL;
 876                 psb->status = IOSTAT_SUCCESS;
 877         }
 878         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 879         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 880         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 881         return 0;
 882 }
 883
 884 /**
 885  * lpfc_hba_down_post - Wrapper func for hba down post routine
 886  * @phba: pointer to lpfc HBA data structure.
 887  *
 888  * This routine wraps the actual SLI3 or SLI4 routine for performing
 889  * uninitialization after the HBA is reset when bring down the SLI Layer.
 890  *
 891  * Return codes
 892  *   0 - success.
 893  *   Any other value - error.
 894  **/
 895 int
 896 lpfc_hba_down_post(struct lpfc_hba *phba)
 897 {
 898         return (*phba->lpfc_hba_down_post)(phba);
 899 }
 900
 901 /**
 902  * lpfc_hb_timeout - The HBA-timer timeout handler
 903  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 904  *
 905  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 906  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 907  * work-port-events bitmap and the worker thread is notified. This timeout
 908  * event will be used by the worker thread to invoke the actual timeout
 909  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 910  * be performed in the timeout handler and the HBA timeout event bit shall
 911  * be cleared by the worker thread after it has taken the event bitmap out.
 912  **/
 913 static void
 914 lpfc_hb_timeout(unsigned long ptr)
 915 {
 916         struct lpfc_hba *phba;
 917         uint32_t tmo_posted;
 918         unsigned long iflag;
 919
 920         phba = (struct lpfc_hba *)ptr;
 921
 922         /* Check for heart beat timeout conditions */
 923         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 924         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 925         if (!tmo_posted)
 926                 phba->pport->work_port_events |= WORKER_HB_TMO;
 927         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 928
 929         /* Tell the worker thread there is work to do */
 930         if (!tmo_posted)
 931                 lpfc_worker_wake_up(phba);
 932         return;
 933 }
 934
 935 /**
 936  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 937  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 938  *
 939  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 940  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 941  * work-port-events bitmap and the worker thread is notified. This timeout
 942  * event will be used by the worker thread to invoke the actual timeout
 943  * handler routine, lpfc_rrq_handler. Any periodical operations will
 944  * be performed in the timeout handler and the RRQ timeout event bit shall
 945  * be cleared by the worker thread after it has taken the event bitmap out.
 946  **/
 947 static void
 948 lpfc_rrq_timeout(unsigned long ptr)
 949 {
 950         struct lpfc_hba *phba;
 951         unsigned long iflag;
 952
 953         phba = (struct lpfc_hba *)ptr;
 954         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 955         phba->hba_flag |= HBA_RRQ_ACTIVE;
 956         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 957         lpfc_worker_wake_up(phba);
 958 }
 959
 960 /**
 961  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 962  * @phba: pointer to lpfc hba data structure.
 963  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 964  *
 965  * This is the callback function to the lpfc heart-beat mailbox command.
 966  * If configured, the lpfc driver issues the heart-beat mailbox command to
 967  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 968  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 969  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 970  * heart-beat outstanding state. Once the mailbox command comes back and
 971  * no error conditions detected, the heart-beat mailbox command timer is
 972  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 973  * state is cleared for the next heart-beat. If the timer expired with the
 974  * heart-beat outstanding state set, the driver will put the HBA offline.
 975  **/
 976 static void
 977 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 978 {
 979         unsigned long drvr_flag;
 980
 981         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 982         phba->hb_outstanding = 0;
 983         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 984
 985         /* Check and reset heart-beat timer is necessary */
 986         mempool_free(pmboxq, phba->mbox_mem_pool);
 987         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 988                 !(phba->link_state == LPFC_HBA_ERROR) &&
 989                 !(phba->pport->load_flag & FC_UNLOADING))
 990                 mod_timer(&phba->hb_tmofunc,
 991                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 992         return;
 993 }
 994
 995 /**
 996  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 997  * @phba: pointer to lpfc hba data structure.
 998  *
 999  * This is the actual HBA-timer timeout handler to be invoked by the worker
1000  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1001  * handler performs any periodic operations needed for the device. If such
1002  * periodic event has already been attended to either in the interrupt handler
1003  * or by processing slow-ring or fast-ring events within the HBA-timer
1004  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1005  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1006  * is configured and there is no heart-beat mailbox command outstanding, a
1007  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1008  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1009  * to offline.
1010  **/
1011 void
1012 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1013 {
1014         struct lpfc_vport **vports;
1015         LPFC_MBOXQ_t *pmboxq;
1016         struct lpfc_dmabuf *buf_ptr;
1017         int retval, i;
1018         struct lpfc_sli *psli = &phba->sli;
1019         LIST_HEAD(completions);
1020
1021         vports = lpfc_create_vport_work_array(phba);
1022         if (vports != NULL)
1023                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1024                         lpfc_rcv_seq_check_edtov(vports[i]);
1025         lpfc_destroy_vport_work_array(phba, vports);
1026
1027         if ((phba->link_state == LPFC_HBA_ERROR) ||
1028                 (phba->pport->load_flag & FC_UNLOADING) ||
1029                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1030                 return;
1031
1032         spin_lock_irq(&phba->pport->work_port_lock);
1033
1034         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1035                 jiffies)) {
1036                 spin_unlock_irq(&phba->pport->work_port_lock);
1037                 if (!phba->hb_outstanding)
1038                         mod_timer(&phba->hb_tmofunc,
1039                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1040                 else
1041                         mod_timer(&phba->hb_tmofunc,
1042                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1043                 return;
1044         }
1045         spin_unlock_irq(&phba->pport->work_port_lock);
1046
1047         if (phba->elsbuf_cnt &&
1048                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1049                 spin_lock_irq(&phba->hbalock);
1050                 list_splice_init(&phba->elsbuf, &completions);
1051                 phba->elsbuf_cnt = 0;
1052                 phba->elsbuf_prev_cnt = 0;
1053                 spin_unlock_irq(&phba->hbalock);
1054
1055                 while (!list_empty(&completions)) {
1056                         list_remove_head(&completions, buf_ptr,
1057                                 struct lpfc_dmabuf, list);
1058                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1059                         kfree(buf_ptr);
1060                 }
1061         }
1062         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1063
1064         /* If there is no heart beat outstanding, issue a heartbeat command */
1065         if (phba->cfg_enable_hba_heartbeat) {
1066                 if (!phba->hb_outstanding) {
1067                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1068                                 (list_empty(&psli->mboxq))) {
1069                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1070                                                         GFP_KERNEL);
1071                                 if (!pmboxq) {
1072                                         mod_timer(&phba->hb_tmofunc,
1073                                                  jiffies +
1074                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1075                                         return;
1076                                 }
1077
1078                                 lpfc_heart_beat(phba, pmboxq);
1079                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1080                                 pmboxq->vport = phba->pport;
1081                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1082                                                 MBX_NOWAIT);
1083
1084                                 if (retval != MBX_BUSY &&
1085                                         retval != MBX_SUCCESS) {
1086                                         mempool_free(pmboxq,
1087                                                         phba->mbox_mem_pool);
1088                                         mod_timer(&phba->hb_tmofunc,
1089                                                 jiffies +
1090                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1091                                         return;
1092                                 }
1093                                 phba->skipped_hb = 0;
1094                                 phba->hb_outstanding = 1;
1095                         } else if (time_before_eq(phba->last_completion_time,
1096                                         phba->skipped_hb)) {
1097                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1098                                         "2857 Last completion time not "
1099                                         " updated in %d ms\n",
1100                                         jiffies_to_msecs(jiffies
1101                                                  - phba->last_completion_time));
1102                         } else
1103                                 phba->skipped_hb = jiffies;
1104
1105                         mod_timer(&phba->hb_tmofunc,
1106                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1107                         return;
1108                 } else {
1109                         /*
1110                         * If heart beat timeout called with hb_outstanding set
1111                         * we need to give the hb mailbox cmd a chance to
1112                         * complete or TMO.
1113                         */
1114                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1115                                         "0459 Adapter heartbeat still out"
1116                                         "standing:last compl time was %d ms.\n",
1117                                         jiffies_to_msecs(jiffies
1118                                                  - phba->last_completion_time));
1119                         mod_timer(&phba->hb_tmofunc,
1120                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1121                 }
1122         }
1123 }
1124
1125 /**
1126  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1127  * @phba: pointer to lpfc hba data structure.
1128  *
1129  * This routine is called to bring the HBA offline when HBA hardware error
1130  * other than Port Error 6 has been detected.
1131  **/
1132 static void
1133 lpfc_offline_eratt(struct lpfc_hba *phba)
1134 {
1135         struct lpfc_sli   *psli = &phba->sli;
1136
1137         spin_lock_irq(&phba->hbalock);
1138         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1139         spin_unlock_irq(&phba->hbalock);
1140         lpfc_offline_prep(phba);
1141
1142         lpfc_offline(phba);
1143         lpfc_reset_barrier(phba);
1144         spin_lock_irq(&phba->hbalock);
1145         lpfc_sli_brdreset(phba);
1146         spin_unlock_irq(&phba->hbalock);
1147         lpfc_hba_down_post(phba);
1148         lpfc_sli_brdready(phba, HS_MBRDY);
1149         lpfc_unblock_mgmt_io(phba);
1150         phba->link_state = LPFC_HBA_ERROR;
1151         return;
1152 }
1153
1154 /**
1155  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1156  * @phba: pointer to lpfc hba data structure.
1157  *
1158  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1159  * other than Port Error 6 has been detected.
1160  **/
1161 static void
1162 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1163 {
1164         lpfc_offline_prep(phba);
1165         lpfc_offline(phba);
1166         lpfc_sli4_brdreset(phba);
1167         lpfc_hba_down_post(phba);
1168         lpfc_sli4_post_status_check(phba);
1169         lpfc_unblock_mgmt_io(phba);
1170         phba->link_state = LPFC_HBA_ERROR;
1171 }
1172
1173 /**
1174  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1175  * @phba: pointer to lpfc hba data structure.
1176  *
1177  * This routine is invoked to handle the deferred HBA hardware error
1178  * conditions. This type of error is indicated by HBA by setting ER1
1179  * and another ER bit in the host status register. The driver will
1180  * wait until the ER1 bit clears before handling the error condition.
1181  **/
1182 static void
1183 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1184 {
1185         uint32_t old_host_status = phba->work_hs;
1186         struct lpfc_sli_ring  *pring;
1187         struct lpfc_sli *psli = &phba->sli;
1188
1189         /* If the pci channel is offline, ignore possible errors,
1190          * since we cannot communicate with the pci card anyway.
1191          */
1192         if (pci_channel_offline(phba->pcidev)) {
1193                 spin_lock_irq(&phba->hbalock);
1194                 phba->hba_flag &= ~DEFER_ERATT;
1195                 spin_unlock_irq(&phba->hbalock);
1196                 return;
1197         }
1198
1199         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1200                 "0479 Deferred Adapter Hardware Error "
1201                 "Data: x%x x%x x%x\n",
1202                 phba->work_hs,
1203                 phba->work_status[0], phba->work_status[1]);
1204
1205         spin_lock_irq(&phba->hbalock);
1206         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1207         spin_unlock_irq(&phba->hbalock);
1208
1209
1210         /*
1211          * Firmware stops when it triggred erratt. That could cause the I/Os
1212          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1213          * SCSI layer retry it after re-establishing link.
1214          */
1215         pring = &psli->ring[psli->fcp_ring];
1216         lpfc_sli_abort_iocb_ring(phba, pring);
1217
1218         /*
1219          * There was a firmware error. Take the hba offline and then
1220          * attempt to restart it.
1221          */
1222         lpfc_offline_prep(phba);
1223         lpfc_offline(phba);
1224
1225         /* Wait for the ER1 bit to clear.*/
1226         while (phba->work_hs & HS_FFER1) {
1227                 msleep(100);
1228                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1229                         phba->work_hs = UNPLUG_ERR ;
1230                         break;
1231                 }
1232                 /* If driver is unloading let the worker thread continue */
1233                 if (phba->pport->load_flag & FC_UNLOADING) {
1234                         phba->work_hs = 0;
1235                         break;
1236                 }
1237         }
1238
1239         /*
1240          * This is to ptrotect against a race condition in which
1241          * first write to the host attention register clear the
1242          * host status register.
1243          */
1244         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1245                 phba->work_hs = old_host_status & ~HS_FFER1;
1246
1247         spin_lock_irq(&phba->hbalock);
1248         phba->hba_flag &= ~DEFER_ERATT;
1249         spin_unlock_irq(&phba->hbalock);
1250         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1251         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1252 }
1253
1254 static void
1255 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1256 {
1257         struct lpfc_board_event_header board_event;
1258         struct Scsi_Host *shost;
1259
1260         board_event.event_type = FC_REG_BOARD_EVENT;
1261         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1262         shost = lpfc_shost_from_vport(phba->pport);
1263         fc_host_post_vendor_event(shost, fc_get_event_number(),
1264                                   sizeof(board_event),
1265                                   (char *) &board_event,
1266                                   LPFC_NL_VENDOR_ID);
1267 }
1268
1269 /**
1270  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1271  * @phba: pointer to lpfc hba data structure.
1272  *
1273  * This routine is invoked to handle the following HBA hardware error
1274  * conditions:
1275  * 1 - HBA error attention interrupt
1276  * 2 - DMA ring index out of range
1277  * 3 - Mailbox command came back as unknown
1278  **/
1279 static void
1280 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1281 {
1282         struct lpfc_vport *vport = phba->pport;
1283         struct lpfc_sli   *psli = &phba->sli;
1284         struct lpfc_sli_ring  *pring;
1285         uint32_t event_data;
1286         unsigned long temperature;
1287         struct temp_event temp_event_data;
1288         struct Scsi_Host  *shost;
1289
1290         /* If the pci channel is offline, ignore possible errors,
1291          * since we cannot communicate with the pci card anyway.
1292          */
1293         if (pci_channel_offline(phba->pcidev)) {
1294                 spin_lock_irq(&phba->hbalock);
1295                 phba->hba_flag &= ~DEFER_ERATT;
1296                 spin_unlock_irq(&phba->hbalock);
1297                 return;
1298         }
1299
1300         /* If resets are disabled then leave the HBA alone and return */
1301         if (!phba->cfg_enable_hba_reset)
1302                 return;
1303
1304         /* Send an internal error event to mgmt application */
1305         lpfc_board_errevt_to_mgmt(phba);
1306
1307         if (phba->hba_flag & DEFER_ERATT)
1308                 lpfc_handle_deferred_eratt(phba);
1309
1310         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1311                 if (phba->work_hs & HS_FFER6)
1312                         /* Re-establishing Link */
1313                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1314                                         "1301 Re-establishing Link "
1315                                         "Data: x%x x%x x%x\n",
1316                                         phba->work_hs, phba->work_status[0],
1317                                         phba->work_status[1]);
1318                 if (phba->work_hs & HS_FFER8)
1319                         /* Device Zeroization */
1320                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1321                                         "2861 Host Authentication device "
1322                                         "zeroization Data:x%x x%x x%x\n",
1323                                         phba->work_hs, phba->work_status[0],
1324                                         phba->work_status[1]);
1325
1326                 spin_lock_irq(&phba->hbalock);
1327                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1328                 spin_unlock_irq(&phba->hbalock);
1329
1330                 /*
1331                 * Firmware stops when it triggled erratt with HS_FFER6.
1332                 * That could cause the I/Os dropped by the firmware.
1333                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1334                 * retry it after re-establishing link.
1335                 */
1336                 pring = &psli->ring[psli->fcp_ring];
1337                 lpfc_sli_abort_iocb_ring(phba, pring);
1338
1339                 /*
1340                  * There was a firmware error.  Take the hba offline and then
1341                  * attempt to restart it.
1342                  */
1343                 lpfc_offline_prep(phba);
1344                 lpfc_offline(phba);
1345                 lpfc_sli_brdrestart(phba);
1346                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1347                         lpfc_unblock_mgmt_io(phba);
1348                         return;
1349                 }
1350                 lpfc_unblock_mgmt_io(phba);
1351         } else if (phba->work_hs & HS_CRIT_TEMP) {
1352                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1353                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1354                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1355                 temp_event_data.data = (uint32_t)temperature;
1356
1357                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1358                                 "0406 Adapter maximum temperature exceeded "
1359                                 "(%ld), taking this port offline "
1360                                 "Data: x%x x%x x%x\n",
1361                                 temperature, phba->work_hs,
1362                                 phba->work_status[0], phba->work_status[1]);
1363
1364                 shost = lpfc_shost_from_vport(phba->pport);
1365                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1366                                           sizeof(temp_event_data),
1367                                           (char *) &temp_event_data,
1368                                           SCSI_NL_VID_TYPE_PCI
1369                                           | PCI_VENDOR_ID_EMULEX);
1370
1371                 spin_lock_irq(&phba->hbalock);
1372                 phba->over_temp_state = HBA_OVER_TEMP;
1373                 spin_unlock_irq(&phba->hbalock);
1374                 lpfc_offline_eratt(phba);
1375
1376         } else {
1377                 /* The if clause above forces this code path when the status
1378                  * failure is a value other than FFER6. Do not call the offline
1379                  * twice. This is the adapter hardware error path.
1380                  */
1381                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1382                                 "0457 Adapter Hardware Error "
1383                                 "Data: x%x x%x x%x\n",
1384                                 phba->work_hs,
1385                                 phba->work_status[0], phba->work_status[1]);
1386
1387                 event_data = FC_REG_DUMP_EVENT;
1388                 shost = lpfc_shost_from_vport(vport);
1389                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1390                                 sizeof(event_data), (char *) &event_data,
1391                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1392
1393                 lpfc_offline_eratt(phba);
1394         }
1395         return;
1396 }
1397
1398 /**
1399  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1400  * @phba: pointer to lpfc hba data structure.
1401  *
1402  * This routine is invoked to handle the SLI4 HBA hardware error attention
1403  * conditions.
1404  **/
1405 static void
1406 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1407 {
1408         struct lpfc_vport *vport = phba->pport;
1409         uint32_t event_data;
1410         struct Scsi_Host *shost;
1411         uint32_t if_type;
1412         struct lpfc_register portstat_reg;
1413
1414         /* If the pci channel is offline, ignore possible errors, since
1415          * we cannot communicate with the pci card anyway.
1416          */
1417         if (pci_channel_offline(phba->pcidev))
1418                 return;
1419         /* If resets are disabled then leave the HBA alone and return */
1420         if (!phba->cfg_enable_hba_reset)
1421                 return;
1422
1423         /* Send an internal error event to mgmt application */
1424         lpfc_board_errevt_to_mgmt(phba);
1425
1426         /* For now, the actual action for SLI4 device handling is not
1427          * specified yet, just treated it as adaptor hardware failure
1428          */
1429         event_data = FC_REG_DUMP_EVENT;
1430         shost = lpfc_shost_from_vport(vport);
1431         fc_host_post_vendor_event(shost, fc_get_event_number(),
1432                                   sizeof(event_data), (char *) &event_data,
1433                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1434
1435         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1436         switch (if_type) {
1437         case LPFC_SLI_INTF_IF_TYPE_0:
1438                 lpfc_sli4_offline_eratt(phba);
1439                 break;
1440         case LPFC_SLI_INTF_IF_TYPE_2:
1441                 portstat_reg.word0 =
1442                         readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1443
1444                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1445                         /* TODO: Register for Overtemp async events. */
1446                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1447                                 "2889 Port Overtemperature event, "
1448                                 "taking port\n");
1449                         spin_lock_irq(&phba->hbalock);
1450                         phba->over_temp_state = HBA_OVER_TEMP;
1451                         spin_unlock_irq(&phba->hbalock);
1452                         lpfc_sli4_offline_eratt(phba);
1453                         return;
1454                 }
1455                 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1456                         /*
1457                          * TODO: Attempt port recovery via a port reset.
1458                          * When fully implemented, the driver should
1459                          * attempt to recover the port here and return.
1460                          * For now, log an error and take the port offline.
1461                          */
1462                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1463                                         "2887 Port Error: Attempting "
1464                                         "Port Recovery\n");
1465                 }
1466                 lpfc_sli4_offline_eratt(phba);
1467                 break;
1468         case LPFC_SLI_INTF_IF_TYPE_1:
1469         default:
1470                 break;
1471         }
1472 }
1473
1474 /**
1475  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1476  * @phba: pointer to lpfc HBA data structure.
1477  *
1478  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1479  * routine from the API jump table function pointer from the lpfc_hba struct.
1480  *
1481  * Return codes
1482  *   0 - success.
1483  *   Any other value - error.
1484  **/
1485 void
1486 lpfc_handle_eratt(struct lpfc_hba *phba)
1487 {
1488         (*phba->lpfc_handle_eratt)(phba);
1489 }
1490
1491 /**
1492  * lpfc_handle_latt - The HBA link event handler
1493  * @phba: pointer to lpfc hba data structure.
1494  *
1495  * This routine is invoked from the worker thread to handle a HBA host
1496  * attention link event.
1497  **/
1498 void
1499 lpfc_handle_latt(struct lpfc_hba *phba)
1500 {
1501         struct lpfc_vport *vport = phba->pport;
1502         struct lpfc_sli   *psli = &phba->sli;
1503         LPFC_MBOXQ_t *pmb;
1504         volatile uint32_t control;
1505         struct lpfc_dmabuf *mp;
1506         int rc = 0;
1507
1508         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1509         if (!pmb) {
1510                 rc = 1;
1511                 goto lpfc_handle_latt_err_exit;
1512         }
1513
1514         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1515         if (!mp) {
1516                 rc = 2;
1517                 goto lpfc_handle_latt_free_pmb;
1518         }
1519
1520         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1521         if (!mp->virt) {
1522                 rc = 3;
1523                 goto lpfc_handle_latt_free_mp;
1524         }
1525
1526         /* Cleanup any outstanding ELS commands */
1527         lpfc_els_flush_all_cmd(phba);
1528
1529         psli->slistat.link_event++;
1530         lpfc_read_topology(phba, pmb, mp);
1531         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1532         pmb->vport = vport;
1533         /* Block ELS IOCBs until we have processed this mbox command */
1534         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1535         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1536         if (rc == MBX_NOT_FINISHED) {
1537                 rc = 4;
1538                 goto lpfc_handle_latt_free_mbuf;
1539         }
1540
1541         /* Clear Link Attention in HA REG */
1542         spin_lock_irq(&phba->hbalock);
1543         writel(HA_LATT, phba->HAregaddr);
1544         readl(phba->HAregaddr); /* flush */
1545         spin_unlock_irq(&phba->hbalock);
1546
1547         return;
1548
1549 lpfc_handle_latt_free_mbuf:
1550         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1551         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1552 lpfc_handle_latt_free_mp:
1553         kfree(mp);
1554 lpfc_handle_latt_free_pmb:
1555         mempool_free(pmb, phba->mbox_mem_pool);
1556 lpfc_handle_latt_err_exit:
1557         /* Enable Link attention interrupts */
1558         spin_lock_irq(&phba->hbalock);
1559         psli->sli_flag |= LPFC_PROCESS_LA;
1560         control = readl(phba->HCregaddr);
1561         control |= HC_LAINT_ENA;
1562         writel(control, phba->HCregaddr);
1563         readl(phba->HCregaddr); /* flush */
1564
1565         /* Clear Link Attention in HA REG */
1566         writel(HA_LATT, phba->HAregaddr);
1567         readl(phba->HAregaddr); /* flush */
1568         spin_unlock_irq(&phba->hbalock);
1569         lpfc_linkdown(phba);
1570         phba->link_state = LPFC_HBA_ERROR;
1571
1572         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1573                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1574
1575         return;
1576 }
1577
1578 /**
1579  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1580  * @phba: pointer to lpfc hba data structure.
1581  * @vpd: pointer to the vital product data.
1582  * @len: length of the vital product data in bytes.
1583  *
1584  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1585  * an array of characters. In this routine, the ModelName, ProgramType, and
1586  * ModelDesc, etc. fields of the phba data structure will be populated.
1587  *
1588  * Return codes
1589  *   0 - pointer to the VPD passed in is NULL
1590  *   1 - success
1591  **/
1592 int
1593 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1594 {
1595         uint8_t lenlo, lenhi;
1596         int Length;
1597         int i, j;
1598         int finished = 0;
1599         int index = 0;
1600
1601         if (!vpd)
1602                 return 0;
1603
1604         /* Vital Product */
1605         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1606                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1607                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1608                         (uint32_t) vpd[3]);
1609         while (!finished && (index < (len - 4))) {
1610                 switch (vpd[index]) {
1611                 case 0x82:
1612                 case 0x91:
1613                         index += 1;
1614                         lenlo = vpd[index];
1615                         index += 1;
1616                         lenhi = vpd[index];
1617                         index += 1;
1618                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1619                         index += i;
1620                         break;
1621                 case 0x90:
1622                         index += 1;
1623                         lenlo = vpd[index];
1624                         index += 1;
1625                         lenhi = vpd[index];
1626                         index += 1;
1627                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1628                         if (Length > len - index)
1629                                 Length = len - index;
1630                         while (Length > 0) {
1631                         /* Look for Serial Number */
1632                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1633                                 index += 2;
1634                                 i = vpd[index];
1635                                 index += 1;
1636                                 j = 0;
1637                                 Length -= (3+i);
1638                                 while(i--) {
1639                                         phba->SerialNumber[j++] = vpd[index++];
1640                                         if (j == 31)
1641                                                 break;
1642                                 }
1643                                 phba->SerialNumber[j] = 0;
1644                                 continue;
1645                         }
1646                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1647                                 phba->vpd_flag |= VPD_MODEL_DESC;
1648                                 index += 2;
1649                                 i = vpd[index];
1650                                 index += 1;
1651                                 j = 0;
1652                                 Length -= (3+i);
1653                                 while(i--) {
1654                                         phba->ModelDesc[j++] = vpd[index++];
1655                                         if (j == 255)
1656                                                 break;
1657                                 }
1658                                 phba->ModelDesc[j] = 0;
1659                                 continue;
1660                         }
1661                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1662                                 phba->vpd_flag |= VPD_MODEL_NAME;
1663                                 index += 2;
1664                                 i = vpd[index];
1665                                 index += 1;
1666                                 j = 0;
1667                                 Length -= (3+i);
1668                                 while(i--) {
1669                                         phba->ModelName[j++] = vpd[index++];
1670                                         if (j == 79)
1671                                                 break;
1672                                 }
1673                                 phba->ModelName[j] = 0;
1674                                 continue;
1675                         }
1676                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1677                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1678                                 index += 2;
1679                                 i = vpd[index];
1680                                 index += 1;
1681                                 j = 0;
1682                                 Length -= (3+i);
1683                                 while(i--) {
1684                                         phba->ProgramType[j++] = vpd[index++];
1685                                         if (j == 255)
1686                                                 break;
1687                                 }
1688                                 phba->ProgramType[j] = 0;
1689                                 continue;
1690                         }
1691                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1692                                 phba->vpd_flag |= VPD_PORT;
1693                                 index += 2;
1694                                 i = vpd[index];
1695                                 index += 1;
1696                                 j = 0;
1697                                 Length -= (3+i);
1698                                 while(i--) {
1699                                 phba->Port[j++] = vpd[index++];
1700                                 if (j == 19)
1701                                         break;
1702                                 }
1703                                 phba->Port[j] = 0;
1704                                 continue;
1705                         }
1706                         else {
1707                                 index += 2;
1708                                 i = vpd[index];
1709                                 index += 1;
1710                                 index += i;
1711                                 Length -= (3 + i);
1712                         }
1713                 }
1714                 finished = 0;
1715                 break;
1716                 case 0x78:
1717                         finished = 1;
1718                         break;
1719                 default:
1720                         index ++;
1721                         break;
1722                 }
1723         }
1724
1725         return(1);
1726 }
1727
1728 /**
1729  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1730  * @phba: pointer to lpfc hba data structure.
1731  * @mdp: pointer to the data structure to hold the derived model name.
1732  * @descp: pointer to the data structure to hold the derived description.
1733  *
1734  * This routine retrieves HBA's description based on its registered PCI device
1735  * ID. The @descp passed into this function points to an array of 256 chars. It
1736  * shall be returned with the model name, maximum speed, and the host bus type.
1737  * The @mdp passed into this function points to an array of 80 chars. When the
1738  * function returns, the @mdp will be filled with the model name.
1739  **/
1740 static void
1741 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1742 {
1743         lpfc_vpd_t *vp;
1744         uint16_t dev_id = phba->pcidev->device;
1745         int max_speed;
1746         int GE = 0;
1747         int oneConnect = 0; /* default is not a oneConnect */
1748         struct {
1749                 char *name;
1750                 char *bus;
1751                 char *function;
1752         } m = {"<Unknown>", "", ""};
1753
1754         if (mdp && mdp[0] != '\0'
1755                 && descp && descp[0] != '\0')
1756                 return;
1757
1758         if (phba->lmt & LMT_10Gb)
1759                 max_speed = 10;
1760         else if (phba->lmt & LMT_8Gb)
1761                 max_speed = 8;
1762         else if (phba->lmt & LMT_4Gb)
1763                 max_speed = 4;
1764         else if (phba->lmt & LMT_2Gb)
1765                 max_speed = 2;
1766         else
1767                 max_speed = 1;
1768
1769         vp = &phba->vpd;
1770
1771         switch (dev_id) {
1772         case PCI_DEVICE_ID_FIREFLY:
1773                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1774                 break;
1775         case PCI_DEVICE_ID_SUPERFLY:
1776                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1777                         m = (typeof(m)){"LP7000", "PCI",
1778                                         "Fibre Channel Adapter"};
1779                 else
1780                         m = (typeof(m)){"LP7000E", "PCI",
1781                                         "Fibre Channel Adapter"};
1782                 break;
1783         case PCI_DEVICE_ID_DRAGONFLY:
1784                 m = (typeof(m)){"LP8000", "PCI",
1785                                 "Fibre Channel Adapter"};
1786                 break;
1787         case PCI_DEVICE_ID_CENTAUR:
1788                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1789                         m = (typeof(m)){"LP9002", "PCI",
1790                                         "Fibre Channel Adapter"};
1791                 else
1792                         m = (typeof(m)){"LP9000", "PCI",
1793                                         "Fibre Channel Adapter"};
1794                 break;
1795         case PCI_DEVICE_ID_RFLY:
1796                 m = (typeof(m)){"LP952", "PCI",
1797                                 "Fibre Channel Adapter"};
1798                 break;
1799         case PCI_DEVICE_ID_PEGASUS:
1800                 m = (typeof(m)){"LP9802", "PCI-X",
1801                                 "Fibre Channel Adapter"};
1802                 break;
1803         case PCI_DEVICE_ID_THOR:
1804                 m = (typeof(m)){"LP10000", "PCI-X",
1805                                 "Fibre Channel Adapter"};
1806                 break;
1807         case PCI_DEVICE_ID_VIPER:
1808                 m = (typeof(m)){"LPX1000",  "PCI-X",
1809                                 "Fibre Channel Adapter"};
1810                 break;
1811         case PCI_DEVICE_ID_PFLY:
1812                 m = (typeof(m)){"LP982", "PCI-X",
1813                                 "Fibre Channel Adapter"};
1814                 break;
1815         case PCI_DEVICE_ID_TFLY:
1816                 m = (typeof(m)){"LP1050", "PCI-X",
1817                                 "Fibre Channel Adapter"};
1818                 break;
1819         case PCI_DEVICE_ID_HELIOS:
1820                 m = (typeof(m)){"LP11000", "PCI-X2",
1821                                 "Fibre Channel Adapter"};
1822                 break;
1823         case PCI_DEVICE_ID_HELIOS_SCSP:
1824                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1825                                 "Fibre Channel Adapter"};
1826                 break;
1827         case PCI_DEVICE_ID_HELIOS_DCSP:
1828                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1829                                 "Fibre Channel Adapter"};
1830                 break;
1831         case PCI_DEVICE_ID_NEPTUNE:
1832                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1833                 break;
1834         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1835                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1836                 break;
1837         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1838                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1839                 break;
1840         case PCI_DEVICE_ID_BMID:
1841                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1842                 break;
1843         case PCI_DEVICE_ID_BSMB:
1844                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1845                 break;
1846         case PCI_DEVICE_ID_ZEPHYR:
1847                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1848                 break;
1849         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1850                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1851                 break;
1852         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1853                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1854                 GE = 1;
1855                 break;
1856         case PCI_DEVICE_ID_ZMID:
1857                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1858                 break;
1859         case PCI_DEVICE_ID_ZSMB:
1860                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1861                 break;
1862         case PCI_DEVICE_ID_LP101:
1863                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1864                 break;
1865         case PCI_DEVICE_ID_LP10000S:
1866                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1867                 break;
1868         case PCI_DEVICE_ID_LP11000S:
1869                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1870                 break;
1871         case PCI_DEVICE_ID_LPE11000S:
1872                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1873                 break;
1874         case PCI_DEVICE_ID_SAT:
1875                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1876                 break;
1877         case PCI_DEVICE_ID_SAT_MID:
1878                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1879                 break;
1880         case PCI_DEVICE_ID_SAT_SMB:
1881                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1882                 break;
1883         case PCI_DEVICE_ID_SAT_DCSP:
1884                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1885                 break;
1886         case PCI_DEVICE_ID_SAT_SCSP:
1887                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1888                 break;
1889         case PCI_DEVICE_ID_SAT_S:
1890                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1891                 break;
1892         case PCI_DEVICE_ID_HORNET:
1893                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1894                 GE = 1;
1895                 break;
1896         case PCI_DEVICE_ID_PROTEUS_VF:
1897                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1898                                 "Fibre Channel Adapter"};
1899                 break;
1900         case PCI_DEVICE_ID_PROTEUS_PF:
1901                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1902                                 "Fibre Channel Adapter"};
1903                 break;
1904         case PCI_DEVICE_ID_PROTEUS_S:
1905                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1906                                 "Fibre Channel Adapter"};
1907                 break;
1908         case PCI_DEVICE_ID_TIGERSHARK:
1909                 oneConnect = 1;
1910                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1911                 break;
1912         case PCI_DEVICE_ID_TOMCAT:
1913                 oneConnect = 1;
1914                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1915                 break;
1916         case PCI_DEVICE_ID_FALCON:
1917                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1918                                 "EmulexSecure Fibre"};
1919                 break;
1920         case PCI_DEVICE_ID_BALIUS:
1921                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1922                                 "Fibre Channel Adapter"};
1923                 break;
1924         case PCI_DEVICE_ID_LANCER_FC:
1925                 oneConnect = 1;
1926                 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1927                 break;
1928         case PCI_DEVICE_ID_LANCER_FCOE:
1929                 oneConnect = 1;
1930                 m = (typeof(m)){"Undefined", "PCIe", "FCoE"};
1931                 break;
1932         default:
1933                 m = (typeof(m)){"Unknown", "", ""};
1934                 break;
1935         }
1936
1937         if (mdp && mdp[0] == '\0')
1938                 snprintf(mdp, 79,"%s", m.name);
1939         /* oneConnect hba requires special processing, they are all initiators
1940          * and we put the port number on the end
1941          */
1942         if (descp && descp[0] == '\0') {
1943                 if (oneConnect)
1944                         snprintf(descp, 255,
1945                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1946                                 m.name, m.function,
1947                                 phba->Port);
1948                 else
1949                         snprintf(descp, 255,
1950                                 "Emulex %s %d%s %s %s",
1951                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1952                                 m.bus, m.function);
1953         }
1954 }
1955
1956 /**
1957  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1958  * @phba: pointer to lpfc hba data structure.
1959  * @pring: pointer to a IOCB ring.
1960  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1961  *
1962  * This routine posts a given number of IOCBs with the associated DMA buffer
1963  * descriptors specified by the cnt argument to the given IOCB ring.
1964  *
1965  * Return codes
1966  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1967  **/
1968 int
1969 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1970 {
1971         IOCB_t *icmd;
1972         struct lpfc_iocbq *iocb;
1973         struct lpfc_dmabuf *mp1, *mp2;
1974
1975         cnt += pring->missbufcnt;
1976
1977         /* While there are buffers to post */
1978         while (cnt > 0) {
1979                 /* Allocate buffer for  command iocb */
1980                 iocb = lpfc_sli_get_iocbq(phba);
1981                 if (iocb == NULL) {
1982                         pring->missbufcnt = cnt;
1983                         return cnt;
1984                 }
1985                 icmd = &iocb->iocb;
1986
1987                 /* 2 buffers can be posted per command */
1988                 /* Allocate buffer to post */
1989                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1990                 if (mp1)
1991                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1992                 if (!mp1 || !mp1->virt) {
1993                         kfree(mp1);
1994                         lpfc_sli_release_iocbq(phba, iocb);
1995                         pring->missbufcnt = cnt;
1996                         return cnt;
1997                 }
1998
1999                 INIT_LIST_HEAD(&mp1->list);
2000                 /* Allocate buffer to post */
2001                 if (cnt > 1) {
2002                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2003                         if (mp2)
2004                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2005                                                             &mp2->phys);
2006                         if (!mp2 || !mp2->virt) {
2007                                 kfree(mp2);
2008                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2009                                 kfree(mp1);
2010                                 lpfc_sli_release_iocbq(phba, iocb);
2011                                 pring->missbufcnt = cnt;
2012                                 return cnt;
2013                         }
2014
2015                         INIT_LIST_HEAD(&mp2->list);
2016                 } else {
2017                         mp2 = NULL;
2018                 }
2019
2020                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2021                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2022                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2023                 icmd->ulpBdeCount = 1;
2024                 cnt--;
2025                 if (mp2) {
2026                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2027                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2028                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2029                         cnt--;
2030                         icmd->ulpBdeCount = 2;
2031                 }
2032
2033                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2034                 icmd->ulpLe = 1;
2035
2036                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2037                     IOCB_ERROR) {
2038                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2039                         kfree(mp1);
2040                         cnt++;
2041                         if (mp2) {
2042                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2043                                 kfree(mp2);
2044                                 cnt++;
2045                         }
2046                         lpfc_sli_release_iocbq(phba, iocb);
2047                         pring->missbufcnt = cnt;
2048                         return cnt;
2049                 }
2050                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2051                 if (mp2)
2052                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2053         }
2054         pring->missbufcnt = 0;
2055         return 0;
2056 }
2057
2058 /**
2059  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2060  * @phba: pointer to lpfc hba data structure.
2061  *
2062  * This routine posts initial receive IOCB buffers to the ELS ring. The
2063  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2064  * set to 64 IOCBs.
2065  *
2066  * Return codes
2067  *   0 - success (currently always success)
2068  **/
2069 static int
2070 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2071 {
2072         struct lpfc_sli *psli = &phba->sli;
2073
2074         /* Ring 0, ELS / CT buffers */
2075         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2076         /* Ring 2 - FCP no buffers needed */
2077
2078         return 0;
2079 }
2080
2081 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2082
2083 /**
2084  * lpfc_sha_init - Set up initial array of hash table entries
2085  * @HashResultPointer: pointer to an array as hash table.
2086  *
2087  * This routine sets up the initial values to the array of hash table entries
2088  * for the LC HBAs.
2089  **/
2090 static void
2091 lpfc_sha_init(uint32_t * HashResultPointer)
2092 {
2093         HashResultPointer[0] = 0x67452301;
2094         HashResultPointer[1] = 0xEFCDAB89;
2095         HashResultPointer[2] = 0x98BADCFE;
2096         HashResultPointer[3] = 0x10325476;
2097         HashResultPointer[4] = 0xC3D2E1F0;
2098 }
2099
2100 /**
2101  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2102  * @HashResultPointer: pointer to an initial/result hash table.
2103  * @HashWorkingPointer: pointer to an working hash table.
2104  *
2105  * This routine iterates an initial hash table pointed by @HashResultPointer
2106  * with the values from the working hash table pointeed by @HashWorkingPointer.
2107  * The results are putting back to the initial hash table, returned through
2108  * the @HashResultPointer as the result hash table.
2109  **/
2110 static void
2111 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2112 {
2113         int t;
2114         uint32_t TEMP;
2115         uint32_t A, B, C, D, E;
2116         t = 16;
2117         do {
2118                 HashWorkingPointer[t] =
2119                     S(1,
2120                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2121                                                                      8] ^
2122                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2123         } while (++t <= 79);
2124         t = 0;
2125         A = HashResultPointer[0];
2126         B = HashResultPointer[1];
2127         C = HashResultPointer[2];
2128         D = HashResultPointer[3];
2129         E = HashResultPointer[4];
2130
2131         do {
2132                 if (t < 20) {
2133                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2134                 } else if (t < 40) {
2135                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2136                 } else if (t < 60) {
2137                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2138                 } else {
2139                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2140                 }
2141                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2142                 E = D;
2143                 D = C;
2144                 C = S(30, B);
2145                 B = A;
2146                 A = TEMP;
2147         } while (++t <= 79);
2148
2149         HashResultPointer[0] += A;
2150         HashResultPointer[1] += B;
2151         HashResultPointer[2] += C;
2152         HashResultPointer[3] += D;
2153         HashResultPointer[4] += E;
2154
2155 }
2156
2157 /**
2158  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2159  * @RandomChallenge: pointer to the entry of host challenge random number array.
2160  * @HashWorking: pointer to the entry of the working hash array.
2161  *
2162  * This routine calculates the working hash array referred by @HashWorking
2163  * from the challenge random numbers associated with the host, referred by
2164  * @RandomChallenge. The result is put into the entry of the working hash
2165  * array and returned by reference through @HashWorking.
2166  **/
2167 static void
2168 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2169 {
2170         *HashWorking = (*RandomChallenge ^ *HashWorking);
2171 }
2172
2173 /**
2174  * lpfc_hba_init - Perform special handling for LC HBA initialization
2175  * @phba: pointer to lpfc hba data structure.
2176  * @hbainit: pointer to an array of unsigned 32-bit integers.
2177  *
2178  * This routine performs the special handling for LC HBA initialization.
2179  **/
2180 void
2181 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2182 {
2183         int t;
2184         uint32_t *HashWorking;
2185         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2186
2187         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2188         if (!HashWorking)
2189                 return;
2190
2191         HashWorking[0] = HashWorking[78] = *pwwnn++;
2192         HashWorking[1] = HashWorking[79] = *pwwnn;
2193
2194         for (t = 0; t < 7; t++)
2195                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2196
2197         lpfc_sha_init(hbainit);
2198         lpfc_sha_iterate(hbainit, HashWorking);
2199         kfree(HashWorking);
2200 }
2201
2202 /**
2203  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2204  * @vport: pointer to a virtual N_Port data structure.
2205  *
2206  * This routine performs the necessary cleanups before deleting the @vport.
2207  * It invokes the discovery state machine to perform necessary state
2208  * transitions and to release the ndlps associated with the @vport. Note,
2209  * the physical port is treated as @vport 0.
2210  **/
2211 void
2212 lpfc_cleanup(struct lpfc_vport *vport)
2213 {
2214         struct lpfc_hba   *phba = vport->phba;
2215         struct lpfc_nodelist *ndlp, *next_ndlp;
2216         int i = 0;
2217
2218         if (phba->link_state > LPFC_LINK_DOWN)
2219                 lpfc_port_link_failure(vport);
2220
2221         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2222                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2223                         ndlp = lpfc_enable_node(vport, ndlp,
2224                                                 NLP_STE_UNUSED_NODE);
2225                         if (!ndlp)
2226                                 continue;
2227                         spin_lock_irq(&phba->ndlp_lock);
2228                         NLP_SET_FREE_REQ(ndlp);
2229                         spin_unlock_irq(&phba->ndlp_lock);
2230                         /* Trigger the release of the ndlp memory */
2231                         lpfc_nlp_put(ndlp);
2232                         continue;
2233                 }
2234                 spin_lock_irq(&phba->ndlp_lock);
2235                 if (NLP_CHK_FREE_REQ(ndlp)) {
2236                         /* The ndlp should not be in memory free mode already */
2237                         spin_unlock_irq(&phba->ndlp_lock);
2238                         continue;
2239                 } else
2240                         /* Indicate request for freeing ndlp memory */
2241                         NLP_SET_FREE_REQ(ndlp);
2242                 spin_unlock_irq(&phba->ndlp_lock);
2243
2244                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2245                     ndlp->nlp_DID == Fabric_DID) {
2246                         /* Just free up ndlp with Fabric_DID for vports */
2247                         lpfc_nlp_put(ndlp);
2248                         continue;
2249                 }
2250
2251                 if (ndlp->nlp_type & NLP_FABRIC)
2252                         lpfc_disc_state_machine(vport, ndlp, NULL,
2253                                         NLP_EVT_DEVICE_RECOVERY);
2254
2255                 lpfc_disc_state_machine(vport, ndlp, NULL,
2256                                              NLP_EVT_DEVICE_RM);
2257
2258         }
2259
2260         /* At this point, ALL ndlp's should be gone
2261          * because of the previous NLP_EVT_DEVICE_RM.
2262          * Lets wait for this to happen, if needed.
2263          */
2264         while (!list_empty(&vport->fc_nodes)) {
2265                 if (i++ > 3000) {
2266                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2267                                 "0233 Nodelist not empty\n");
2268                         list_for_each_entry_safe(ndlp, next_ndlp,
2269                                                 &vport->fc_nodes, nlp_listp) {
2270                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2271                                                 LOG_NODE,
2272                                                 "0282 did:x%x ndlp:x%p "
2273                                                 "usgmap:x%x refcnt:%d\n",
2274                                                 ndlp->nlp_DID, (void *)ndlp,
2275                                                 ndlp->nlp_usg_map,
2276                                                 atomic_read(
2277                                                         &ndlp->kref.refcount));
2278                         }
2279                         break;
2280                 }
2281
2282                 /* Wait for any activity on ndlps to settle */
2283                 msleep(10);
2284         }
2285         lpfc_cleanup_vports_rrqs(vport, NULL);
2286 }
2287
2288 /**
2289  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2290  * @vport: pointer to a virtual N_Port data structure.
2291  *
2292  * This routine stops all the timers associated with a @vport. This function
2293  * is invoked before disabling or deleting a @vport. Note that the physical
2294  * port is treated as @vport 0.
2295  **/
2296 void
2297 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2298 {
2299         del_timer_sync(&vport->els_tmofunc);
2300         del_timer_sync(&vport->fc_fdmitmo);
2301         del_timer_sync(&vport->delayed_disc_tmo);
2302         lpfc_can_disctmo(vport);
2303         return;
2304 }
2305
2306 /**
2307  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2308  * @phba: pointer to lpfc hba data structure.
2309  *
2310  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2311  * caller of this routine should already hold the host lock.
2312  **/
2313 void
2314 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2315 {
2316         /* Clear pending FCF rediscovery wait flag */
2317         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2318
2319         /* Now, try to stop the timer */
2320         del_timer(&phba->fcf.redisc_wait);
2321 }
2322
2323 /**
2324  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2325  * @phba: pointer to lpfc hba data structure.
2326  *
2327  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2328  * checks whether the FCF rediscovery wait timer is pending with the host
2329  * lock held before proceeding with disabling the timer and clearing the
2330  * wait timer pendig flag.
2331  **/
2332 void
2333 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2334 {
2335         spin_lock_irq(&phba->hbalock);
2336         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2337                 /* FCF rediscovery timer already fired or stopped */
2338                 spin_unlock_irq(&phba->hbalock);
2339                 return;
2340         }
2341         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2342         /* Clear failover in progress flags */
2343         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2344         spin_unlock_irq(&phba->hbalock);
2345 }
2346
2347 /**
2348  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2349  * @phba: pointer to lpfc hba data structure.
2350  *
2351  * This routine stops all the timers associated with a HBA. This function is
2352  * invoked before either putting a HBA offline or unloading the driver.
2353  **/
2354 void
2355 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2356 {
2357         lpfc_stop_vport_timers(phba->pport);
2358         del_timer_sync(&phba->sli.mbox_tmo);
2359         del_timer_sync(&phba->fabric_block_timer);
2360         del_timer_sync(&phba->eratt_poll);
2361         del_timer_sync(&phba->hb_tmofunc);
2362         if (phba->sli_rev == LPFC_SLI_REV4) {
2363                 del_timer_sync(&phba->rrq_tmr);
2364                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2365         }
2366         phba->hb_outstanding = 0;
2367
2368         switch (phba->pci_dev_grp) {
2369         case LPFC_PCI_DEV_LP:
2370                 /* Stop any LightPulse device specific driver timers */
2371                 del_timer_sync(&phba->fcp_poll_timer);
2372                 break;
2373         case LPFC_PCI_DEV_OC:
2374                 /* Stop any OneConnect device sepcific driver timers */
2375                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2376                 break;
2377         default:
2378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2379                                 "0297 Invalid device group (x%x)\n",
2380                                 phba->pci_dev_grp);
2381                 break;
2382         }
2383         return;
2384 }
2385
2386 /**
2387  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2388  * @phba: pointer to lpfc hba data structure.
2389  *
2390  * This routine marks a HBA's management interface as blocked. Once the HBA's
2391  * management interface is marked as blocked, all the user space access to
2392  * the HBA, whether they are from sysfs interface or libdfc interface will
2393  * all be blocked. The HBA is set to block the management interface when the
2394  * driver prepares the HBA interface for online or offline.
2395  **/
2396 static void
2397 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2398 {
2399         unsigned long iflag;
2400         uint8_t actcmd = MBX_HEARTBEAT;
2401         unsigned long timeout;
2402
2403
2404         spin_lock_irqsave(&phba->hbalock, iflag);
2405         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2406         if (phba->sli.mbox_active)
2407                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2408         spin_unlock_irqrestore(&phba->hbalock, iflag);
2409         /* Determine how long we might wait for the active mailbox
2410          * command to be gracefully completed by firmware.
2411          */
2412         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2413                         jiffies;
2414         /* Wait for the outstnading mailbox command to complete */
2415         while (phba->sli.mbox_active) {
2416                 /* Check active mailbox complete status every 2ms */
2417                 msleep(2);
2418                 if (time_after(jiffies, timeout)) {
2419                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2420                                 "2813 Mgmt IO is Blocked %x "
2421                                 "- mbox cmd %x still active\n",
2422                                 phba->sli.sli_flag, actcmd);
2423                         break;
2424                 }
2425         }
2426 }
2427
2428 /**
2429  * lpfc_online - Initialize and bring a HBA online
2430  * @phba: pointer to lpfc hba data structure.
2431  *
2432  * This routine initializes the HBA and brings a HBA online. During this
2433  * process, the management interface is blocked to prevent user space access
2434  * to the HBA interfering with the driver initialization.
2435  *
2436  * Return codes
2437  *   0 - successful
2438  *   1 - failed
2439  **/
2440 int
2441 lpfc_online(struct lpfc_hba *phba)
2442 {
2443         struct lpfc_vport *vport;
2444         struct lpfc_vport **vports;
2445         int i;
2446
2447         if (!phba)
2448                 return 0;
2449         vport = phba->pport;
2450
2451         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2452                 return 0;
2453
2454         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2455                         "0458 Bring Adapter online\n");
2456
2457         lpfc_block_mgmt_io(phba);
2458
2459         if (!lpfc_sli_queue_setup(phba)) {
2460                 lpfc_unblock_mgmt_io(phba);
2461                 return 1;
2462         }
2463
2464         if (phba->sli_rev == LPFC_SLI_REV4) {
2465                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2466                         lpfc_unblock_mgmt_io(phba);
2467                         return 1;
2468                 }
2469         } else {
2470                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2471                         lpfc_unblock_mgmt_io(phba);
2472                         return 1;
2473                 }
2474         }
2475
2476         vports = lpfc_create_vport_work_array(phba);
2477         if (vports != NULL)
2478                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2479                         struct Scsi_Host *shost;
2480                         shost = lpfc_shost_from_vport(vports[i]);
2481                         spin_lock_irq(shost->host_lock);
2482                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2483                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2484                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2485                         if (phba->sli_rev == LPFC_SLI_REV4)
2486                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2487                         spin_unlock_irq(shost->host_lock);
2488                 }
2489                 lpfc_destroy_vport_work_array(phba, vports);
2490
2491         lpfc_unblock_mgmt_io(phba);
2492         return 0;
2493 }
2494
2495 /**
2496  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2497  * @phba: pointer to lpfc hba data structure.
2498  *
2499  * This routine marks a HBA's management interface as not blocked. Once the
2500  * HBA's management interface is marked as not blocked, all the user space
2501  * access to the HBA, whether they are from sysfs interface or libdfc
2502  * interface will be allowed. The HBA is set to block the management interface
2503  * when the driver prepares the HBA interface for online or offline and then
2504  * set to unblock the management interface afterwards.
2505  **/
2506 void
2507 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2508 {
2509         unsigned long iflag;
2510
2511         spin_lock_irqsave(&phba->hbalock, iflag);
2512         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2513         spin_unlock_irqrestore(&phba->hbalock, iflag);
2514 }
2515
2516 /**
2517  * lpfc_offline_prep - Prepare a HBA to be brought offline
2518  * @phba: pointer to lpfc hba data structure.
2519  *
2520  * This routine is invoked to prepare a HBA to be brought offline. It performs
2521  * unregistration login to all the nodes on all vports and flushes the mailbox
2522  * queue to make it ready to be brought offline.
2523  **/
2524 void
2525 lpfc_offline_prep(struct lpfc_hba * phba)
2526 {
2527         struct lpfc_vport *vport = phba->pport;
2528         struct lpfc_nodelist  *ndlp, *next_ndlp;
2529         struct lpfc_vport **vports;
2530         struct Scsi_Host *shost;
2531         int i;
2532
2533         if (vport->fc_flag & FC_OFFLINE_MODE)
2534                 return;
2535
2536         lpfc_block_mgmt_io(phba);
2537
2538         lpfc_linkdown(phba);
2539
2540         /* Issue an unreg_login to all nodes on all vports */
2541         vports = lpfc_create_vport_work_array(phba);
2542         if (vports != NULL) {
2543                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2544                         if (vports[i]->load_flag & FC_UNLOADING)
2545                                 continue;
2546                         shost = lpfc_shost_from_vport(vports[i]);
2547                         spin_lock_irq(shost->host_lock);
2548                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2549                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2550                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2551                         spin_unlock_irq(shost->host_lock);
2552
2553                         shost = lpfc_shost_from_vport(vports[i]);
2554                         list_for_each_entry_safe(ndlp, next_ndlp,
2555                                                  &vports[i]->fc_nodes,
2556                                                  nlp_listp) {
2557                                 if (!NLP_CHK_NODE_ACT(ndlp))
2558                                         continue;
2559                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2560                                         continue;
2561                                 if (ndlp->nlp_type & NLP_FABRIC) {
2562                                         lpfc_disc_state_machine(vports[i], ndlp,
2563                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2564                                         lpfc_disc_state_machine(vports[i], ndlp,
2565                                                 NULL, NLP_EVT_DEVICE_RM);
2566                                 }
2567                                 spin_lock_irq(shost->host_lock);
2568                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2569                                 spin_unlock_irq(shost->host_lock);
2570                                 lpfc_unreg_rpi(vports[i], ndlp);
2571                         }
2572                 }
2573         }
2574         lpfc_destroy_vport_work_array(phba, vports);
2575
2576         lpfc_sli_mbox_sys_shutdown(phba);
2577 }
2578
2579 /**
2580  * lpfc_offline - Bring a HBA offline
2581  * @phba: pointer to lpfc hba data structure.
2582  *
2583  * This routine actually brings a HBA offline. It stops all the timers
2584  * associated with the HBA, brings down the SLI layer, and eventually
2585  * marks the HBA as in offline state for the upper layer protocol.
2586  **/
2587 void
2588 lpfc_offline(struct lpfc_hba *phba)
2589 {
2590         struct Scsi_Host  *shost;
2591         struct lpfc_vport **vports;
2592         int i;
2593
2594         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2595                 return;
2596
2597         /* stop port and all timers associated with this hba */
2598         lpfc_stop_port(phba);
2599         vports = lpfc_create_vport_work_array(phba);
2600         if (vports != NULL)
2601                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2602                         lpfc_stop_vport_timers(vports[i]);
2603         lpfc_destroy_vport_work_array(phba, vports);
2604         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2605                         "0460 Bring Adapter offline\n");
2606         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2607            now.  */
2608         lpfc_sli_hba_down(phba);
2609         spin_lock_irq(&phba->hbalock);
2610         phba->work_ha = 0;
2611         spin_unlock_irq(&phba->hbalock);
2612         vports = lpfc_create_vport_work_array(phba);
2613         if (vports != NULL)
2614                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2615                         shost = lpfc_shost_from_vport(vports[i]);
2616                         spin_lock_irq(shost->host_lock);
2617                         vports[i]->work_port_events = 0;
2618                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2619                         spin_unlock_irq(shost->host_lock);
2620                 }
2621         lpfc_destroy_vport_work_array(phba, vports);
2622 }
2623
2624 /**
2625  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2626  * @phba: pointer to lpfc hba data structure.
2627  *
2628  * This routine is to free all the SCSI buffers and IOCBs from the driver
2629  * list back to kernel. It is called from lpfc_pci_remove_one to free
2630  * the internal resources before the device is removed from the system.
2631  *
2632  * Return codes
2633  *   0 - successful (for now, it always returns 0)
2634  **/
2635 static int
2636 lpfc_scsi_free(struct lpfc_hba *phba)
2637 {
2638         struct lpfc_scsi_buf *sb, *sb_next;
2639         struct lpfc_iocbq *io, *io_next;
2640
2641         spin_lock_irq(&phba->hbalock);
2642         /* Release all the lpfc_scsi_bufs maintained by this host. */
2643         spin_lock(&phba->scsi_buf_list_lock);
2644         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2645                 list_del(&sb->list);
2646                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2647                               sb->dma_handle);
2648                 kfree(sb);
2649                 phba->total_scsi_bufs--;
2650         }
2651         spin_unlock(&phba->scsi_buf_list_lock);
2652
2653         /* Release all the lpfc_iocbq entries maintained by this host. */
2654         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2655                 list_del(&io->list);
2656                 kfree(io);
2657                 phba->total_iocbq_bufs--;
2658         }
2659         spin_unlock_irq(&phba->hbalock);
2660         return 0;
2661 }
2662
2663 /**
2664  * lpfc_create_port - Create an FC port
2665  * @phba: pointer to lpfc hba data structure.
2666  * @instance: a unique integer ID to this FC port.
2667  * @dev: pointer to the device data structure.
2668  *
2669  * This routine creates a FC port for the upper layer protocol. The FC port
2670  * can be created on top of either a physical port or a virtual port provided
2671  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2672  * and associates the FC port created before adding the shost into the SCSI
2673  * layer.
2674  *
2675  * Return codes
2676  *   @vport - pointer to the virtual N_Port data structure.
2677  *   NULL - port create failed.
2678  **/
2679 struct lpfc_vport *
2680 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2681 {
2682         struct lpfc_vport *vport;
2683         struct Scsi_Host  *shost;
2684         int error = 0;
2685
2686         if (dev != &phba->pcidev->dev)
2687                 shost = scsi_host_alloc(&lpfc_vport_template,
2688                                         sizeof(struct lpfc_vport));
2689         else
2690                 shost = scsi_host_alloc(&lpfc_template,
2691                                         sizeof(struct lpfc_vport));
2692         if (!shost)
2693                 goto out;
2694
2695         vport = (struct lpfc_vport *) shost->hostdata;
2696         vport->phba = phba;
2697         vport->load_flag |= FC_LOADING;
2698         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2699         vport->fc_rscn_flush = 0;
2700
2701         lpfc_get_vport_cfgparam(vport);
2702         shost->unique_id = instance;
2703         shost->max_id = LPFC_MAX_TARGET;
2704         shost->max_lun = vport->cfg_max_luns;
2705         shost->this_id = -1;
2706         shost->max_cmd_len = 16;
2707         if (phba->sli_rev == LPFC_SLI_REV4) {
2708                 shost->dma_boundary =
2709                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2710                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2711         }
2712
2713         /*
2714          * Set initial can_queue value since 0 is no longer supported and
2715          * scsi_add_host will fail. This will be adjusted later based on the
2716          * max xri value determined in hba setup.
2717          */
2718         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2719         if (dev != &phba->pcidev->dev) {
2720                 shost->transportt = lpfc_vport_transport_template;
2721                 vport->port_type = LPFC_NPIV_PORT;
2722         } else {
2723                 shost->transportt = lpfc_transport_template;
2724                 vport->port_type = LPFC_PHYSICAL_PORT;
2725         }
2726
2727         /* Initialize all internally managed lists. */
2728         INIT_LIST_HEAD(&vport->fc_nodes);
2729         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2730         spin_lock_init(&vport->work_port_lock);
2731
2732         init_timer(&vport->fc_disctmo);
2733         vport->fc_disctmo.function = lpfc_disc_timeout;
2734         vport->fc_disctmo.data = (unsigned long)vport;
2735
2736         init_timer(&vport->fc_fdmitmo);
2737         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2738         vport->fc_fdmitmo.data = (unsigned long)vport;
2739
2740         init_timer(&vport->els_tmofunc);
2741         vport->els_tmofunc.function = lpfc_els_timeout;
2742         vport->els_tmofunc.data = (unsigned long)vport;
2743
2744         init_timer(&vport->delayed_disc_tmo);
2745         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2746         vport->delayed_disc_tmo.data = (unsigned long)vport;
2747
2748         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2749         if (error)
2750                 goto out_put_shost;
2751
2752         spin_lock_irq(&phba->hbalock);
2753         list_add_tail(&vport->listentry, &phba->port_list);
2754         spin_unlock_irq(&phba->hbalock);
2755         return vport;
2756
2757 out_put_shost:
2758         scsi_host_put(shost);
2759 out:
2760         return NULL;
2761 }
2762
2763 /**
2764  * destroy_port -  destroy an FC port
2765  * @vport: pointer to an lpfc virtual N_Port data structure.
2766  *
2767  * This routine destroys a FC port from the upper layer protocol. All the
2768  * resources associated with the port are released.
2769  **/
2770 void
2771 destroy_port(struct lpfc_vport *vport)
2772 {
2773         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2774         struct lpfc_hba  *phba = vport->phba;
2775
2776         lpfc_debugfs_terminate(vport);
2777         fc_remove_host(shost);
2778         scsi_remove_host(shost);
2779
2780         spin_lock_irq(&phba->hbalock);
2781         list_del_init(&vport->listentry);
2782         spin_unlock_irq(&phba->hbalock);
2783
2784         lpfc_cleanup(vport);
2785         return;
2786 }
2787
2788 /**
2789  * lpfc_get_instance - Get a unique integer ID
2790  *
2791  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2792  * uses the kernel idr facility to perform the task.
2793  *
2794  * Return codes:
2795  *   instance - a unique integer ID allocated as the new instance.
2796  *   -1 - lpfc get instance failed.
2797  **/
2798 int
2799 lpfc_get_instance(void)
2800 {
2801         int instance = 0;
2802
2803         /* Assign an unused number */
2804         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2805                 return -1;
2806         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2807                 return -1;
2808         return instance;
2809 }
2810
2811 /**
2812  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2813  * @shost: pointer to SCSI host data structure.
2814  * @time: elapsed time of the scan in jiffies.
2815  *
2816  * This routine is called by the SCSI layer with a SCSI host to determine
2817  * whether the scan host is finished.
2818  *
2819  * Note: there is no scan_start function as adapter initialization will have
2820  * asynchronously kicked off the link initialization.
2821  *
2822  * Return codes
2823  *   0 - SCSI host scan is not over yet.
2824  *   1 - SCSI host scan is over.
2825  **/
2826 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2827 {
2828         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2829         struct lpfc_hba   *phba = vport->phba;
2830         int stat = 0;
2831
2832         spin_lock_irq(shost->host_lock);
2833
2834         if (vport->load_flag & FC_UNLOADING) {
2835                 stat = 1;
2836                 goto finished;
2837         }
2838         if (time >= 30 * HZ) {
2839                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2840                                 "0461 Scanning longer than 30 "
2841                                 "seconds.  Continuing initialization\n");
2842                 stat = 1;
2843                 goto finished;
2844         }
2845         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2846                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2847                                 "0465 Link down longer than 15 "
2848                                 "seconds.  Continuing initialization\n");
2849                 stat = 1;
2850                 goto finished;
2851         }
2852
2853         if (vport->port_state != LPFC_VPORT_READY)
2854                 goto finished;
2855         if (vport->num_disc_nodes || vport->fc_prli_sent)
2856                 goto finished;
2857         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2858                 goto finished;
2859         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2860                 goto finished;
2861
2862         stat = 1;
2863
2864 finished:
2865         spin_unlock_irq(shost->host_lock);
2866         return stat;
2867 }
2868
2869 /**
2870  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2871  * @shost: pointer to SCSI host data structure.
2872  *
2873  * This routine initializes a given SCSI host attributes on a FC port. The
2874  * SCSI host can be either on top of a physical port or a virtual port.
2875  **/
2876 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2877 {
2878         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2879         struct lpfc_hba   *phba = vport->phba;
2880         /*
2881          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2882          */
2883
2884         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2885         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2886         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2887
2888         memset(fc_host_supported_fc4s(shost), 0,
2889                sizeof(fc_host_supported_fc4s(shost)));
2890         fc_host_supported_fc4s(shost)[2] = 1;
2891         fc_host_supported_fc4s(shost)[7] = 1;
2892
2893         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2894                                  sizeof fc_host_symbolic_name(shost));
2895
2896         fc_host_supported_speeds(shost) = 0;
2897         if (phba->lmt & LMT_10Gb)
2898                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2899         if (phba->lmt & LMT_8Gb)
2900                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2901         if (phba->lmt & LMT_4Gb)
2902                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2903         if (phba->lmt & LMT_2Gb)
2904                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2905         if (phba->lmt & LMT_1Gb)
2906                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2907
2908         fc_host_maxframe_size(shost) =
2909                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2910                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2911
2912         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2913
2914         /* This value is also unchanging */
2915         memset(fc_host_active_fc4s(shost), 0,
2916                sizeof(fc_host_active_fc4s(shost)));
2917         fc_host_active_fc4s(shost)[2] = 1;
2918         fc_host_active_fc4s(shost)[7] = 1;
2919
2920         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2921         spin_lock_irq(shost->host_lock);
2922         vport->load_flag &= ~FC_LOADING;
2923         spin_unlock_irq(shost->host_lock);
2924 }
2925
2926 /**
2927  * lpfc_stop_port_s3 - Stop SLI3 device port
2928  * @phba: pointer to lpfc hba data structure.
2929  *
2930  * This routine is invoked to stop an SLI3 device port, it stops the device
2931  * from generating interrupts and stops the device driver's timers for the
2932  * device.
2933  **/
2934 static void
2935 lpfc_stop_port_s3(struct lpfc_hba *phba)
2936 {
2937         /* Clear all interrupt enable conditions */
2938         writel(0, phba->HCregaddr);
2939         readl(phba->HCregaddr); /* flush */
2940         /* Clear all pending interrupts */
2941         writel(0xffffffff, phba->HAregaddr);
2942         readl(phba->HAregaddr); /* flush */
2943
2944         /* Reset some HBA SLI setup states */
2945         lpfc_stop_hba_timers(phba);
2946         phba->pport->work_port_events = 0;
2947 }
2948
2949 /**
2950  * lpfc_stop_port_s4 - Stop SLI4 device port
2951  * @phba: pointer to lpfc hba data structure.
2952  *
2953  * This routine is invoked to stop an SLI4 device port, it stops the device
2954  * from generating interrupts and stops the device driver's timers for the
2955  * device.
2956  **/
2957 static void
2958 lpfc_stop_port_s4(struct lpfc_hba *phba)
2959 {
2960         /* Reset some HBA SLI4 setup states */
2961         lpfc_stop_hba_timers(phba);
2962         phba->pport->work_port_events = 0;
2963         phba->sli4_hba.intr_enable = 0;
2964 }
2965
2966 /**
2967  * lpfc_stop_port - Wrapper function for stopping hba port
2968  * @phba: Pointer to HBA context object.
2969  *
2970  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2971  * the API jump table function pointer from the lpfc_hba struct.
2972  **/
2973 void
2974 lpfc_stop_port(struct lpfc_hba *phba)
2975 {
2976         phba->lpfc_stop_port(phba);
2977 }
2978
2979 /**
2980  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2981  * @phba: Pointer to hba for which this call is being executed.
2982  *
2983  * This routine starts the timer waiting for the FCF rediscovery to complete.
2984  **/
2985 void
2986 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2987 {
2988         unsigned long fcf_redisc_wait_tmo =
2989                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2990         /* Start fcf rediscovery wait period timer */
2991         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2992         spin_lock_irq(&phba->hbalock);
2993         /* Allow action to new fcf asynchronous event */
2994         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2995         /* Mark the FCF rediscovery pending state */
2996         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2997         spin_unlock_irq(&phba->hbalock);
2998 }
2999
3000 /**
3001  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3002  * @ptr: Map to lpfc_hba data structure pointer.
3003  *
3004  * This routine is invoked when waiting for FCF table rediscover has been
3005  * timed out. If new FCF record(s) has (have) been discovered during the
3006  * wait period, a new FCF event shall be added to the FCOE async event
3007  * list, and then worker thread shall be waked up for processing from the
3008  * worker thread context.
3009  **/
3010 void
3011 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3012 {
3013         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3014
3015         /* Don't send FCF rediscovery event if timer cancelled */
3016         spin_lock_irq(&phba->hbalock);
3017         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3018                 spin_unlock_irq(&phba->hbalock);
3019                 return;
3020         }
3021         /* Clear FCF rediscovery timer pending flag */
3022         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3023         /* FCF rediscovery event to worker thread */
3024         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3025         spin_unlock_irq(&phba->hbalock);
3026         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3027                         "2776 FCF rediscover quiescent timer expired\n");
3028         /* wake up worker thread */
3029         lpfc_worker_wake_up(phba);
3030 }
3031
3032 /**
3033  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3034  * @phba: pointer to lpfc hba data structure.
3035  * @acqe_link: pointer to the async link completion queue entry.
3036  *
3037  * This routine is to parse the SLI4 link-attention link fault code and
3038  * translate it into the base driver's read link attention mailbox command
3039  * status.
3040  *
3041  * Return: Link-attention status in terms of base driver's coding.
3042  **/
3043 static uint16_t
3044 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3045                            struct lpfc_acqe_link *acqe_link)
3046 {
3047         uint16_t latt_fault;
3048
3049         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3050         case LPFC_ASYNC_LINK_FAULT_NONE:
3051         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3052         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3053                 latt_fault = 0;
3054                 break;
3055         default:
3056                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3057                                 "0398 Invalid link fault code: x%x\n",
3058                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3059                 latt_fault = MBXERR_ERROR;
3060                 break;
3061         }
3062         return latt_fault;
3063 }
3064
3065 /**
3066  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3067  * @phba: pointer to lpfc hba data structure.
3068  * @acqe_link: pointer to the async link completion queue entry.
3069  *
3070  * This routine is to parse the SLI4 link attention type and translate it
3071  * into the base driver's link attention type coding.
3072  *
3073  * Return: Link attention type in terms of base driver's coding.
3074  **/
3075 static uint8_t
3076 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3077                           struct lpfc_acqe_link *acqe_link)
3078 {
3079         uint8_t att_type;
3080
3081         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3082         case LPFC_ASYNC_LINK_STATUS_DOWN:
3083         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3084                 att_type = LPFC_ATT_LINK_DOWN;
3085                 break;
3086         case LPFC_ASYNC_LINK_STATUS_UP:
3087                 /* Ignore physical link up events - wait for logical link up */
3088                 att_type = LPFC_ATT_RESERVED;
3089                 break;
3090         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3091                 att_type = LPFC_ATT_LINK_UP;
3092                 break;
3093         default:
3094                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3095                                 "0399 Invalid link attention type: x%x\n",
3096                                 bf_get(lpfc_acqe_link_status, acqe_link));
3097                 att_type = LPFC_ATT_RESERVED;
3098                 break;
3099         }
3100         return att_type;
3101 }
3102
3103 /**
3104  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3105  * @phba: pointer to lpfc hba data structure.
3106  * @acqe_link: pointer to the async link completion queue entry.
3107  *
3108  * This routine is to parse the SLI4 link-attention link speed and translate
3109  * it into the base driver's link-attention link speed coding.
3110  *
3111  * Return: Link-attention link speed in terms of base driver's coding.
3112  **/
3113 static uint8_t
3114 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3115                                 struct lpfc_acqe_link *acqe_link)
3116 {
3117         uint8_t link_speed;
3118
3119         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3120         case LPFC_ASYNC_LINK_SPEED_ZERO:
3121         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3122         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3123                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3124                 break;
3125         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3126                 link_speed = LPFC_LINK_SPEED_1GHZ;
3127                 break;
3128         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3129                 link_speed = LPFC_LINK_SPEED_10GHZ;
3130                 break;
3131         default:
3132                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3133                                 "0483 Invalid link-attention link speed: x%x\n",
3134                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3135                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3136                 break;
3137         }
3138         return link_speed;
3139 }
3140
3141 /**
3142  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3143  * @phba: pointer to lpfc hba data structure.
3144  * @acqe_link: pointer to the async link completion queue entry.
3145  *
3146  * This routine is to handle the SLI4 asynchronous FCoE link event.
3147  **/
3148 static void
3149 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3150                          struct lpfc_acqe_link *acqe_link)
3151 {
3152         struct lpfc_dmabuf *mp;
3153         LPFC_MBOXQ_t *pmb;
3154         MAILBOX_t *mb;
3155         struct lpfc_mbx_read_top *la;
3156         uint8_t att_type;
3157         int rc;
3158
3159         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3160         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3161                 return;
3162         phba->fcoe_eventtag = acqe_link->event_tag;
3163         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3164         if (!pmb) {
3165                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3166                                 "0395 The mboxq allocation failed\n");
3167                 return;
3168         }
3169         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3170         if (!mp) {
3171                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3172                                 "0396 The lpfc_dmabuf allocation failed\n");
3173                 goto out_free_pmb;
3174         }
3175         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3176         if (!mp->virt) {
3177                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3178                                 "0397 The mbuf allocation failed\n");
3179                 goto out_free_dmabuf;
3180         }
3181
3182         /* Cleanup any outstanding ELS commands */
3183         lpfc_els_flush_all_cmd(phba);
3184
3185         /* Block ELS IOCBs until we have done process link event */
3186         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3187
3188         /* Update link event statistics */
3189         phba->sli.slistat.link_event++;
3190
3191         /* Create lpfc_handle_latt mailbox command from link ACQE */
3192         lpfc_read_topology(phba, pmb, mp);
3193         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3194         pmb->vport = phba->pport;
3195
3196         /* Keep the link status for extra SLI4 state machine reference */
3197         phba->sli4_hba.link_state.speed =
3198                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3199         phba->sli4_hba.link_state.duplex =
3200                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3201         phba->sli4_hba.link_state.status =
3202                                 bf_get(lpfc_acqe_link_status, acqe_link);
3203         phba->sli4_hba.link_state.type =
3204                                 bf_get(lpfc_acqe_link_type, acqe_link);
3205         phba->sli4_hba.link_state.number =
3206                                 bf_get(lpfc_acqe_link_number, acqe_link);
3207         phba->sli4_hba.link_state.fault =
3208                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3209         phba->sli4_hba.link_state.logical_speed =
3210                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3211         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3212                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3213                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3214                         "Logical speed:%dMbps Fault:%d\n",
3215                         phba->sli4_hba.link_state.speed,
3216                         phba->sli4_hba.link_state.topology,
3217                         phba->sli4_hba.link_state.status,
3218                         phba->sli4_hba.link_state.type,
3219                         phba->sli4_hba.link_state.number,
3220                         phba->sli4_hba.link_state.logical_speed * 10,
3221                         phba->sli4_hba.link_state.fault);
3222         /*
3223          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3224          * topology info. Note: Optional for non FC-AL ports.
3225          */
3226         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3227                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3228                 if (rc == MBX_NOT_FINISHED)
3229                         goto out_free_dmabuf;
3230                 return;
3231         }
3232         /*
3233          * For FCoE Mode: fill in all the topology information we need and call
3234          * the READ_TOPOLOGY completion routine to continue without actually
3235          * sending the READ_TOPOLOGY mailbox command to the port.
3236          */
3237         /* Parse and translate status field */
3238         mb = &pmb->u.mb;
3239         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3240
3241         /* Parse and translate link attention fields */
3242         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3243         la->eventTag = acqe_link->event_tag;
3244         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3245         bf_set(lpfc_mbx_read_top_link_spd, la,
3246                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3247
3248         /* Fake the the following irrelvant fields */
3249         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3250         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3251         bf_set(lpfc_mbx_read_top_il, la, 0);
3252         bf_set(lpfc_mbx_read_top_pb, la, 0);
3253         bf_set(lpfc_mbx_read_top_fa, la, 0);
3254         bf_set(lpfc_mbx_read_top_mm, la, 0);
3255
3256         /* Invoke the lpfc_handle_latt mailbox command callback function */
3257         lpfc_mbx_cmpl_read_topology(phba, pmb);
3258
3259         return;
3260
3261 out_free_dmabuf:
3262         kfree(mp);
3263 out_free_pmb:
3264         mempool_free(pmb, phba->mbox_mem_pool);
3265 }
3266
3267 /**
3268  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3269  * @phba: pointer to lpfc hba data structure.
3270  * @acqe_fc: pointer to the async fc completion queue entry.
3271  *
3272  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3273  * that the event was received and then issue a read_topology mailbox command so
3274  * that the rest of the driver will treat it the same as SLI3.
3275  **/
3276 static void
3277 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3278 {
3279         struct lpfc_dmabuf *mp;
3280         LPFC_MBOXQ_t *pmb;
3281         int rc;
3282
3283         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3284             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3285                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3286                                 "2895 Non FC link Event detected.(%d)\n",
3287                                 bf_get(lpfc_trailer_type, acqe_fc));
3288                 return;
3289         }
3290         /* Keep the link status for extra SLI4 state machine reference */
3291         phba->sli4_hba.link_state.speed =
3292                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3293         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3294         phba->sli4_hba.link_state.topology =
3295                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3296         phba->sli4_hba.link_state.status =
3297                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3298         phba->sli4_hba.link_state.type =
3299                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3300         phba->sli4_hba.link_state.number =
3301                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3302         phba->sli4_hba.link_state.fault =
3303                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3304         phba->sli4_hba.link_state.logical_speed =
3305                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3306         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3307                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3308                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3309                         "%dMbps Fault:%d\n",
3310                         phba->sli4_hba.link_state.speed,
3311                         phba->sli4_hba.link_state.topology,
3312                         phba->sli4_hba.link_state.status,
3313                         phba->sli4_hba.link_state.type,
3314                         phba->sli4_hba.link_state.number,
3315                         phba->sli4_hba.link_state.logical_speed * 10,
3316                         phba->sli4_hba.link_state.fault);
3317         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3318         if (!pmb) {
3319                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3320                                 "2897 The mboxq allocation failed\n");
3321                 return;
3322         }
3323         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3324         if (!mp) {
3325                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3326                                 "2898 The lpfc_dmabuf allocation failed\n");
3327                 goto out_free_pmb;
3328         }
3329         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3330         if (!mp->virt) {
3331                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3332                                 "2899 The mbuf allocation failed\n");
3333                 goto out_free_dmabuf;
3334         }
3335
3336         /* Cleanup any outstanding ELS commands */
3337         lpfc_els_flush_all_cmd(phba);
3338
3339         /* Block ELS IOCBs until we have done process link event */
3340         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3341
3342         /* Update link event statistics */
3343         phba->sli.slistat.link_event++;
3344
3345         /* Create lpfc_handle_latt mailbox command from link ACQE */
3346         lpfc_read_topology(phba, pmb, mp);
3347         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3348         pmb->vport = phba->pport;
3349
3350         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3351         if (rc == MBX_NOT_FINISHED)
3352                 goto out_free_dmabuf;
3353         return;
3354
3355 out_free_dmabuf:
3356         kfree(mp);
3357 out_free_pmb:
3358         mempool_free(pmb, phba->mbox_mem_pool);
3359 }
3360
3361 /**
3362  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3363  * @phba: pointer to lpfc hba data structure.
3364  * @acqe_fc: pointer to the async SLI completion queue entry.
3365  *
3366  * This routine is to handle the SLI4 asynchronous SLI events.
3367  **/
3368 static void
3369 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3370 {
3371         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3372                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3373                         "x%08x SLI Event Type:%d",
3374                         acqe_sli->event_data1, acqe_sli->event_data2,
3375                         bf_get(lpfc_trailer_type, acqe_sli));
3376         return;
3377 }
3378
3379 /**
3380  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3381  * @vport: pointer to vport data structure.
3382  *
3383  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3384  * response to a CVL event.
3385  *
3386  * Return the pointer to the ndlp with the vport if successful, otherwise
3387  * return NULL.
3388  **/
3389 static struct lpfc_nodelist *
3390 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3391 {
3392         struct lpfc_nodelist *ndlp;
3393         struct Scsi_Host *shost;
3394         struct lpfc_hba *phba;
3395
3396         if (!vport)
3397                 return NULL;
3398         phba = vport->phba;
3399         if (!phba)
3400                 return NULL;
3401         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3402         if (!ndlp) {
3403                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3404                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3405                 if (!ndlp)
3406                         return 0;
3407                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3408                 /* Set the node type */
3409                 ndlp->nlp_type |= NLP_FABRIC;
3410                 /* Put ndlp onto node list */
3411                 lpfc_enqueue_node(vport, ndlp);
3412         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3413                 /* re-setup ndlp without removing from node list */
3414                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3415                 if (!ndlp)
3416                         return 0;
3417         }
3418         if ((phba->pport->port_state < LPFC_FLOGI) &&
3419                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3420                 return NULL;
3421         /* If virtual link is not yet instantiated ignore CVL */
3422         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3423                 && (vport->port_state != LPFC_VPORT_FAILED))
3424                 return NULL;
3425         shost = lpfc_shost_from_vport(vport);
3426         if (!shost)
3427                 return NULL;
3428         lpfc_linkdown_port(vport);
3429         lpfc_cleanup_pending_mbox(vport);
3430         spin_lock_irq(shost->host_lock);
3431         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3432         spin_unlock_irq(shost->host_lock);
3433
3434         return ndlp;
3435 }
3436
3437 /**
3438  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3439  * @vport: pointer to lpfc hba data structure.
3440  *
3441  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3442  * response to a FCF dead event.
3443  **/
3444 static void
3445 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3446 {
3447         struct lpfc_vport **vports;
3448         int i;
3449
3450         vports = lpfc_create_vport_work_array(phba);
3451         if (vports)
3452                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3453                         lpfc_sli4_perform_vport_cvl(vports[i]);
3454         lpfc_destroy_vport_work_array(phba, vports);
3455 }
3456
3457 /**
3458  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3459  * @phba: pointer to lpfc hba data structure.
3460  * @acqe_link: pointer to the async fcoe completion queue entry.
3461  *
3462  * This routine is to handle the SLI4 asynchronous fcoe event.
3463  **/
3464 static void
3465 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3466                         struct lpfc_acqe_fip *acqe_fip)
3467 {
3468         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3469         int rc;
3470         struct lpfc_vport *vport;
3471         struct lpfc_nodelist *ndlp;
3472         struct Scsi_Host  *shost;
3473         int active_vlink_present;
3474         struct lpfc_vport **vports;
3475         int i;
3476
3477         phba->fc_eventTag = acqe_fip->event_tag;
3478         phba->fcoe_eventtag = acqe_fip->event_tag;
3479         switch (event_type) {
3480         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3481         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3482                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3483                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3484                                         LOG_DISCOVERY,
3485                                         "2546 New FCF event, evt_tag:x%x, "
3486                                         "index:x%x\n",
3487                                         acqe_fip->event_tag,
3488                                         acqe_fip->index);
3489                 else
3490                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3491                                         LOG_DISCOVERY,
3492                                         "2788 FCF param modified event, "
3493                                         "evt_tag:x%x, index:x%x\n",
3494                                         acqe_fip->event_tag,
3495                                         acqe_fip->index);
3496                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3497                         /*
3498                          * During period of FCF discovery, read the FCF
3499                          * table record indexed by the event to update
3500                          * FCF roundrobin failover eligible FCF bmask.
3501                          */
3502                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3503                                         LOG_DISCOVERY,
3504                                         "2779 Read FCF (x%x) for updating "
3505                                         "roundrobin FCF failover bmask\n",
3506                                         acqe_fip->index);
3507                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3508                 }
3509
3510                 /* If the FCF discovery is in progress, do nothing. */
3511                 spin_lock_irq(&phba->hbalock);
3512                 if (phba->hba_flag & FCF_TS_INPROG) {
3513                         spin_unlock_irq(&phba->hbalock);
3514                         break;
3515                 }
3516                 /* If fast FCF failover rescan event is pending, do nothing */
3517                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3518                         spin_unlock_irq(&phba->hbalock);
3519                         break;
3520                 }
3521
3522                 /* If the FCF has been in discovered state, do nothing. */
3523                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3524                         spin_unlock_irq(&phba->hbalock);
3525                         break;
3526                 }
3527                 spin_unlock_irq(&phba->hbalock);
3528
3529                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3530                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3531                                 "2770 Start FCF table scan per async FCF "
3532                                 "event, evt_tag:x%x, index:x%x\n",
3533                                 acqe_fip->event_tag, acqe_fip->index);
3534                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3535                                                      LPFC_FCOE_FCF_GET_FIRST);
3536                 if (rc)
3537                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3538                                         "2547 Issue FCF scan read FCF mailbox "
3539                                         "command failed (x%x)\n", rc);
3540                 break;
3541
3542         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3543                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3544                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3545                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3546                         acqe_fip->event_tag);
3547                 break;
3548
3549         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3550                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3551                         "2549 FCF (x%x) disconnected from network, "
3552                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3553                 /*
3554                  * If we are in the middle of FCF failover process, clear
3555                  * the corresponding FCF bit in the roundrobin bitmap.
3556                  */
3557                 spin_lock_irq(&phba->hbalock);
3558                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3559                         spin_unlock_irq(&phba->hbalock);
3560                         /* Update FLOGI FCF failover eligible FCF bmask */
3561                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3562                         break;
3563                 }
3564                 spin_unlock_irq(&phba->hbalock);
3565
3566                 /* If the event is not for currently used fcf do nothing */
3567                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3568                         break;
3569
3570                 /*
3571                  * Otherwise, request the port to rediscover the entire FCF
3572                  * table for a fast recovery from case that the current FCF
3573                  * is no longer valid as we are not in the middle of FCF
3574                  * failover process already.
3575                  */
3576                 spin_lock_irq(&phba->hbalock);
3577                 /* Mark the fast failover process in progress */
3578                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3579                 spin_unlock_irq(&phba->hbalock);
3580
3581                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3582                                 "2771 Start FCF fast failover process due to "
3583                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3584                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3585                 rc = lpfc_sli4_redisc_fcf_table(phba);
3586                 if (rc) {
3587                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3588                                         LOG_DISCOVERY,
3589                                         "2772 Issue FCF rediscover mabilbox "
3590                                         "command failed, fail through to FCF "
3591                                         "dead event\n");
3592                         spin_lock_irq(&phba->hbalock);
3593                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3594                         spin_unlock_irq(&phba->hbalock);
3595                         /*
3596                          * Last resort will fail over by treating this
3597                          * as a link down to FCF registration.
3598                          */
3599                         lpfc_sli4_fcf_dead_failthrough(phba);
3600                 } else {
3601                         /* Reset FCF roundrobin bmask for new discovery */
3602                         memset(phba->fcf.fcf_rr_bmask, 0,
3603                                sizeof(*phba->fcf.fcf_rr_bmask));
3604                         /*
3605                          * Handling fast FCF failover to a DEAD FCF event is
3606                          * considered equalivant to receiving CVL to all vports.
3607                          */
3608                         lpfc_sli4_perform_all_vport_cvl(phba);
3609                 }
3610                 break;
3611         case LPFC_FIP_EVENT_TYPE_CVL:
3612                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3613                         "2718 Clear Virtual Link Received for VPI 0x%x"
3614                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3615                 vport = lpfc_find_vport_by_vpid(phba,
3616                                 acqe_fip->index - phba->vpi_base);
3617                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3618                 if (!ndlp)
3619                         break;
3620                 active_vlink_present = 0;
3621
3622                 vports = lpfc_create_vport_work_array(phba);
3623                 if (vports) {
3624                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3625                                         i++) {
3626                                 if ((!(vports[i]->fc_flag &
3627                                         FC_VPORT_CVL_RCVD)) &&
3628                                         (vports[i]->port_state > LPFC_FDISC)) {
3629                                         active_vlink_present = 1;
3630                                         break;
3631                                 }
3632                         }
3633                         lpfc_destroy_vport_work_array(phba, vports);
3634                 }
3635
3636                 if (active_vlink_present) {
3637                         /*
3638                          * If there are other active VLinks present,
3639                          * re-instantiate the Vlink using FDISC.
3640                          */
3641                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3642                         shost = lpfc_shost_from_vport(vport);
3643                         spin_lock_irq(shost->host_lock);
3644                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3645                         spin_unlock_irq(shost->host_lock);
3646                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3647                         vport->port_state = LPFC_FDISC;
3648                 } else {
3649                         /*
3650                          * Otherwise, we request port to rediscover
3651                          * the entire FCF table for a fast recovery
3652                          * from possible case that the current FCF
3653                          * is no longer valid if we are not already
3654                          * in the FCF failover process.
3655                          */
3656                         spin_lock_irq(&phba->hbalock);
3657                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3658                                 spin_unlock_irq(&phba->hbalock);
3659                                 break;
3660                         }
3661                         /* Mark the fast failover process in progress */
3662                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3663                         spin_unlock_irq(&phba->hbalock);
3664                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3665                                         LOG_DISCOVERY,
3666                                         "2773 Start FCF failover per CVL, "
3667                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3668                         rc = lpfc_sli4_redisc_fcf_table(phba);
3669                         if (rc) {
3670                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3671                                                 LOG_DISCOVERY,
3672                                                 "2774 Issue FCF rediscover "
3673                                                 "mabilbox command failed, "
3674                                                 "through to CVL event\n");
3675                                 spin_lock_irq(&phba->hbalock);
3676                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3677                                 spin_unlock_irq(&phba->hbalock);
3678                                 /*
3679                                  * Last resort will be re-try on the
3680                                  * the current registered FCF entry.
3681                                  */
3682                                 lpfc_retry_pport_discovery(phba);
3683                         } else
3684                                 /*
3685                                  * Reset FCF roundrobin bmask for new
3686                                  * discovery.
3687                                  */
3688                                 memset(phba->fcf.fcf_rr_bmask, 0,
3689                                        sizeof(*phba->fcf.fcf_rr_bmask));
3690                 }
3691                 break;
3692         default:
3693                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3694                         "0288 Unknown FCoE event type 0x%x event tag "
3695                         "0x%x\n", event_type, acqe_fip->event_tag);
3696                 break;
3697         }
3698 }
3699
3700 /**
3701  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3702  * @phba: pointer to lpfc hba data structure.
3703  * @acqe_link: pointer to the async dcbx completion queue entry.
3704  *
3705  * This routine is to handle the SLI4 asynchronous dcbx event.
3706  **/
3707 static void
3708 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3709                          struct lpfc_acqe_dcbx *acqe_dcbx)
3710 {
3711         phba->fc_eventTag = acqe_dcbx->event_tag;
3712         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3713                         "0290 The SLI4 DCBX asynchronous event is not "
3714                         "handled yet\n");
3715 }
3716
3717 /**
3718  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3719  * @phba: pointer to lpfc hba data structure.
3720  * @acqe_link: pointer to the async grp5 completion queue entry.
3721  *
3722  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3723  * is an asynchronous notified of a logical link speed change.  The Port
3724  * reports the logical link speed in units of 10Mbps.
3725  **/
3726 static void
3727 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3728                          struct lpfc_acqe_grp5 *acqe_grp5)
3729 {
3730         uint16_t prev_ll_spd;
3731
3732         phba->fc_eventTag = acqe_grp5->event_tag;
3733         phba->fcoe_eventtag = acqe_grp5->event_tag;
3734         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3735         phba->sli4_hba.link_state.logical_speed =
3736                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3737         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3738                         "2789 GRP5 Async Event: Updating logical link speed "
3739                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3740                         (phba->sli4_hba.link_state.logical_speed*10));
3741 }
3742
3743 /**
3744  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3745  * @phba: pointer to lpfc hba data structure.
3746  *
3747  * This routine is invoked by the worker thread to process all the pending
3748  * SLI4 asynchronous events.
3749  **/
3750 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3751 {
3752         struct lpfc_cq_event *cq_event;
3753
3754         /* First, declare the async event has been handled */
3755         spin_lock_irq(&phba->hbalock);
3756         phba->hba_flag &= ~ASYNC_EVENT;
3757         spin_unlock_irq(&phba->hbalock);
3758         /* Now, handle all the async events */
3759         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3760                 /* Get the first event from the head of the event queue */
3761                 spin_lock_irq(&phba->hbalock);
3762                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3763                                  cq_event, struct lpfc_cq_event, list);
3764                 spin_unlock_irq(&phba->hbalock);
3765                 /* Process the asynchronous event */
3766                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3767                 case LPFC_TRAILER_CODE_LINK:
3768                         lpfc_sli4_async_link_evt(phba,
3769                                                  &cq_event->cqe.acqe_link);
3770                         break;
3771                 case LPFC_TRAILER_CODE_FCOE:
3772                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3773                         break;
3774                 case LPFC_TRAILER_CODE_DCBX:
3775                         lpfc_sli4_async_dcbx_evt(phba,
3776                                                  &cq_event->cqe.acqe_dcbx);
3777                         break;
3778                 case LPFC_TRAILER_CODE_GRP5:
3779                         lpfc_sli4_async_grp5_evt(phba,
3780                                                  &cq_event->cqe.acqe_grp5);
3781                         break;
3782                 case LPFC_TRAILER_CODE_FC:
3783                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3784                         break;
3785                 case LPFC_TRAILER_CODE_SLI:
3786                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3787                         break;
3788                 default:
3789                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3790                                         "1804 Invalid asynchrous event code: "
3791                                         "x%x\n", bf_get(lpfc_trailer_code,
3792                                         &cq_event->cqe.mcqe_cmpl));
3793                         break;
3794                 }
3795                 /* Free the completion event processed to the free pool */
3796                 lpfc_sli4_cq_event_release(phba, cq_event);
3797         }
3798 }
3799
3800 /**
3801  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3802  * @phba: pointer to lpfc hba data structure.
3803  *
3804  * This routine is invoked by the worker thread to process FCF table
3805  * rediscovery pending completion event.
3806  **/
3807 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3808 {
3809         int rc;
3810
3811         spin_lock_irq(&phba->hbalock);
3812         /* Clear FCF rediscovery timeout event */
3813         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3814         /* Clear driver fast failover FCF record flag */
3815         phba->fcf.failover_rec.flag = 0;
3816         /* Set state for FCF fast failover */
3817         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3818         spin_unlock_irq(&phba->hbalock);
3819
3820         /* Scan FCF table from the first entry to re-discover SAN */
3821         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3822                         "2777 Start post-quiescent FCF table scan\n");
3823         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3824         if (rc)
3825                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3826                                 "2747 Issue FCF scan read FCF mailbox "
3827                                 "command failed 0x%x\n", rc);
3828 }
3829
3830 /**
3831  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3832  * @phba: pointer to lpfc hba data structure.
3833  * @dev_grp: The HBA PCI-Device group number.
3834  *
3835  * This routine is invoked to set up the per HBA PCI-Device group function
3836  * API jump table entries.
3837  *
3838  * Return: 0 if success, otherwise -ENODEV
3839  **/
3840 int
3841 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3842 {
3843         int rc;
3844
3845         /* Set up lpfc PCI-device group */
3846         phba->pci_dev_grp = dev_grp;
3847
3848         /* The LPFC_PCI_DEV_OC uses SLI4 */
3849         if (dev_grp == LPFC_PCI_DEV_OC)
3850                 phba->sli_rev = LPFC_SLI_REV4;
3851
3852         /* Set up device INIT API function jump table */
3853         rc = lpfc_init_api_table_setup(phba, dev_grp);
3854         if (rc)
3855                 return -ENODEV;
3856         /* Set up SCSI API function jump table */
3857         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3858         if (rc)
3859                 return -ENODEV;
3860         /* Set up SLI API function jump table */
3861         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3862         if (rc)
3863                 return -ENODEV;
3864         /* Set up MBOX API function jump table */
3865         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3866         if (rc)
3867                 return -ENODEV;
3868
3869         return 0;
3870 }
3871
3872 /**
3873  * lpfc_log_intr_mode - Log the active interrupt mode
3874  * @phba: pointer to lpfc hba data structure.
3875  * @intr_mode: active interrupt mode adopted.
3876  *
3877  * This routine it invoked to log the currently used active interrupt mode
3878  * to the device.
3879  **/
3880 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3881 {
3882         switch (intr_mode) {
3883         case 0:
3884                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3885                                 "0470 Enable INTx interrupt mode.\n");
3886                 break;
3887         case 1:
3888                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3889                                 "0481 Enabled MSI interrupt mode.\n");
3890                 break;
3891         case 2:
3892                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3893                                 "0480 Enabled MSI-X interrupt mode.\n");
3894                 break;
3895         default:
3896                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3897                                 "0482 Illegal interrupt mode.\n");
3898                 break;
3899         }
3900         return;
3901 }
3902
3903 /**
3904  * lpfc_enable_pci_dev - Enable a generic PCI device.
3905  * @phba: pointer to lpfc hba data structure.
3906  *
3907  * This routine is invoked to enable the PCI device that is common to all
3908  * PCI devices.
3909  *
3910  * Return codes
3911  *      0 - successful
3912  *      other values - error
3913  **/
3914 static int
3915 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3916 {
3917         struct pci_dev *pdev;
3918         int bars;
3919
3920         /* Obtain PCI device reference */
3921         if (!phba->pcidev)
3922                 goto out_error;
3923         else
3924                 pdev = phba->pcidev;
3925         /* Select PCI BARs */
3926         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3927         /* Enable PCI device */
3928         if (pci_enable_device_mem(pdev))
3929                 goto out_error;
3930         /* Request PCI resource for the device */
3931         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3932                 goto out_disable_device;
3933         /* Set up device as PCI master and save state for EEH */
3934         pci_set_master(pdev);
3935         pci_try_set_mwi(pdev);
3936         pci_save_state(pdev);
3937
3938         return 0;
3939
3940 out_disable_device:
3941         pci_disable_device(pdev);
3942 out_error:
3943         return -ENODEV;
3944 }
3945
3946 /**
3947  * lpfc_disable_pci_dev - Disable a generic PCI device.
3948  * @phba: pointer to lpfc hba data structure.
3949  *
3950  * This routine is invoked to disable the PCI device that is common to all
3951  * PCI devices.
3952  **/
3953 static void
3954 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3955 {
3956         struct pci_dev *pdev;
3957         int bars;
3958
3959         /* Obtain PCI device reference */
3960         if (!phba->pcidev)
3961                 return;
3962         else
3963                 pdev = phba->pcidev;
3964         /* Select PCI BARs */
3965         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3966         /* Release PCI resource and disable PCI device */
3967         pci_release_selected_regions(pdev, bars);
3968         pci_disable_device(pdev);
3969         /* Null out PCI private reference to driver */
3970         pci_set_drvdata(pdev, NULL);
3971
3972         return;
3973 }
3974
3975 /**
3976  * lpfc_reset_hba - Reset a hba
3977  * @phba: pointer to lpfc hba data structure.
3978  *
3979  * This routine is invoked to reset a hba device. It brings the HBA
3980  * offline, performs a board restart, and then brings the board back
3981  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3982  * on outstanding mailbox commands.
3983  **/
3984 void
3985 lpfc_reset_hba(struct lpfc_hba *phba)
3986 {
3987         /* If resets are disabled then set error state and return. */
3988         if (!phba->cfg_enable_hba_reset) {
3989                 phba->link_state = LPFC_HBA_ERROR;
3990                 return;
3991         }
3992         lpfc_offline_prep(phba);
3993         lpfc_offline(phba);
3994         lpfc_sli_brdrestart(phba);
3995         lpfc_online(phba);
3996         lpfc_unblock_mgmt_io(phba);
3997 }
3998
3999 /**
4000  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4001  * @phba: pointer to lpfc hba data structure.
4002  *
4003  * This routine is invoked to set up the driver internal resources specific to
4004  * support the SLI-3 HBA device it attached to.
4005  *
4006  * Return codes
4007  *      0 - successful
4008  *      other values - error
4009  **/
4010 static int
4011 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4012 {
4013         struct lpfc_sli *psli;
4014
4015         /*
4016          * Initialize timers used by driver
4017          */
4018
4019         /* Heartbeat timer */
4020         init_timer(&phba->hb_tmofunc);
4021         phba->hb_tmofunc.function = lpfc_hb_timeout;
4022         phba->hb_tmofunc.data = (unsigned long)phba;
4023
4024         psli = &phba->sli;
4025         /* MBOX heartbeat timer */
4026         init_timer(&psli->mbox_tmo);
4027         psli->mbox_tmo.function = lpfc_mbox_timeout;
4028         psli->mbox_tmo.data = (unsigned long) phba;
4029         /* FCP polling mode timer */
4030         init_timer(&phba->fcp_poll_timer);
4031         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4032         phba->fcp_poll_timer.data = (unsigned long) phba;
4033         /* Fabric block timer */
4034         init_timer(&phba->fabric_block_timer);
4035         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4036         phba->fabric_block_timer.data = (unsigned long) phba;
4037         /* EA polling mode timer */
4038         init_timer(&phba->eratt_poll);
4039         phba->eratt_poll.function = lpfc_poll_eratt;
4040         phba->eratt_poll.data = (unsigned long) phba;
4041
4042         /* Host attention work mask setup */
4043         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4044         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4045
4046         /* Get all the module params for configuring this host */
4047         lpfc_get_cfgparam(phba);
4048         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4049                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4050                 /* check for menlo minimum sg count */
4051                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4052                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4053         }
4054
4055         /*
4056          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4057          * used to create the sg_dma_buf_pool must be dynamically calculated.
4058          * 2 segments are added since the IOCB needs a command and response bde.
4059          */
4060         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4061                 sizeof(struct fcp_rsp) +
4062                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4063
4064         if (phba->cfg_enable_bg) {
4065                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4066                 phba->cfg_sg_dma_buf_size +=
4067                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4068         }
4069
4070         /* Also reinitialize the host templates with new values. */
4071         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4072         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4073
4074         phba->max_vpi = LPFC_MAX_VPI;
4075         /* This will be set to correct value after config_port mbox */
4076         phba->max_vports = 0;
4077
4078         /*
4079          * Initialize the SLI Layer to run with lpfc HBAs.
4080          */
4081         lpfc_sli_setup(phba);
4082         lpfc_sli_queue_setup(phba);
4083
4084         /* Allocate device driver memory */
4085         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4086                 return -ENOMEM;
4087
4088         return 0;
4089 }
4090
4091 /**
4092  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4093  * @phba: pointer to lpfc hba data structure.
4094  *
4095  * This routine is invoked to unset the driver internal resources set up
4096  * specific for supporting the SLI-3 HBA device it attached to.
4097  **/
4098 static void
4099 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4100 {
4101         /* Free device driver memory allocated */
4102         lpfc_mem_free_all(phba);
4103
4104         return;
4105 }
4106
4107 /**
4108  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4109  * @phba: pointer to lpfc hba data structure.
4110  *
4111  * This routine is invoked to set up the driver internal resources specific to
4112  * support the SLI-4 HBA device it attached to.
4113  *
4114  * Return codes
4115  *      0 - successful
4116  *      other values - error
4117  **/
4118 static int
4119 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4120 {
4121         struct lpfc_sli *psli;
4122         LPFC_MBOXQ_t *mboxq;
4123         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4124         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4125         struct lpfc_mqe *mqe;
4126         int longs, sli_family;
4127
4128         /* Before proceed, wait for POST done and device ready */
4129         rc = lpfc_sli4_post_status_check(phba);
4130         if (rc)
4131                 return -ENODEV;
4132
4133         /*
4134          * Initialize timers used by driver
4135          */
4136
4137         /* Heartbeat timer */
4138         init_timer(&phba->hb_tmofunc);
4139         phba->hb_tmofunc.function = lpfc_hb_timeout;
4140         phba->hb_tmofunc.data = (unsigned long)phba;
4141         init_timer(&phba->rrq_tmr);
4142         phba->rrq_tmr.function = lpfc_rrq_timeout;
4143         phba->rrq_tmr.data = (unsigned long)phba;
4144
4145         psli = &phba->sli;
4146         /* MBOX heartbeat timer */
4147         init_timer(&psli->mbox_tmo);
4148         psli->mbox_tmo.function = lpfc_mbox_timeout;
4149         psli->mbox_tmo.data = (unsigned long) phba;
4150         /* Fabric block timer */
4151         init_timer(&phba->fabric_block_timer);
4152         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4153         phba->fabric_block_timer.data = (unsigned long) phba;
4154         /* EA polling mode timer */
4155         init_timer(&phba->eratt_poll);
4156         phba->eratt_poll.function = lpfc_poll_eratt;
4157         phba->eratt_poll.data = (unsigned long) phba;
4158         /* FCF rediscover timer */
4159         init_timer(&phba->fcf.redisc_wait);
4160         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4161         phba->fcf.redisc_wait.data = (unsigned long)phba;
4162
4163         /*
4164          * We need to do a READ_CONFIG mailbox command here before
4165          * calling lpfc_get_cfgparam. For VFs this will report the
4166          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4167          * All of the resources allocated
4168          * for this Port are tied to these values.
4169          */
4170         /* Get all the module params for configuring this host */
4171         lpfc_get_cfgparam(phba);
4172         phba->max_vpi = LPFC_MAX_VPI;
4173         /* This will be set to correct value after the read_config mbox */
4174         phba->max_vports = 0;
4175
4176         /* Program the default value of vlan_id and fc_map */
4177         phba->valid_vlan = 0;
4178         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4179         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4180         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4181
4182         /*
4183          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4184          * used to create the sg_dma_buf_pool must be dynamically calculated.
4185          * 2 segments are added since the IOCB needs a command and response bde.
4186          * To insure that the scsi sgl does not cross a 4k page boundary only
4187          * sgl sizes of must be a power of 2.
4188          */
4189         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4190                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4191
4192         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4193         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4194         switch (sli_family) {
4195         case LPFC_SLI_INTF_FAMILY_BE2:
4196         case LPFC_SLI_INTF_FAMILY_BE3:
4197                 /* There is a single hint for BE - 2 pages per BPL. */
4198                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4199                     LPFC_SLI_INTF_SLI_HINT1_1)
4200                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4201                 break;
4202         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4203         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4204         default:
4205                 break;
4206         }
4207         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4208              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4209              dma_buf_size = dma_buf_size << 1)
4210                 ;
4211         if (dma_buf_size == max_buf_size)
4212                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4213                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4214                         (2 * sizeof(struct sli4_sge))) /
4215                                 sizeof(struct sli4_sge);
4216         phba->cfg_sg_dma_buf_size = dma_buf_size;
4217
4218         /* Initialize buffer queue management fields */
4219         hbq_count = lpfc_sli_hbq_count();
4220         for (i = 0; i < hbq_count; ++i)
4221                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4222         INIT_LIST_HEAD(&phba->rb_pend_list);
4223         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4224         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4225
4226         /*
4227          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4228          */
4229         /* Initialize the Abort scsi buffer list used by driver */
4230         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4231         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4232         /* This abort list used by worker thread */
4233         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4234
4235         /*
4236          * Initialize dirver internal slow-path work queues
4237          */
4238
4239         /* Driver internel slow-path CQ Event pool */
4240         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4241         /* Response IOCB work queue list */
4242         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4243         /* Asynchronous event CQ Event work queue list */
4244         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4245         /* Fast-path XRI aborted CQ Event work queue list */
4246         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4247         /* Slow-path XRI aborted CQ Event work queue list */
4248         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4249         /* Receive queue CQ Event work queue list */
4250         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4251
4252         /* Initialize the driver internal SLI layer lists. */
4253         lpfc_sli_setup(phba);
4254         lpfc_sli_queue_setup(phba);
4255
4256         /* Allocate device driver memory */
4257         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4258         if (rc)
4259                 return -ENOMEM;
4260
4261         /* IF Type 2 ports get initialized now. */
4262         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4263             LPFC_SLI_INTF_IF_TYPE_2) {
4264                 rc = lpfc_pci_function_reset(phba);
4265                 if (unlikely(rc))
4266                         return -ENODEV;
4267         }
4268
4269         /* Create the bootstrap mailbox command */
4270         rc = lpfc_create_bootstrap_mbox(phba);
4271         if (unlikely(rc))
4272                 goto out_free_mem;
4273
4274         /* Set up the host's endian order with the device. */
4275         rc = lpfc_setup_endian_order(phba);
4276         if (unlikely(rc))
4277                 goto out_free_bsmbx;
4278
4279         /* Set up the hba's configuration parameters. */
4280         rc = lpfc_sli4_read_config(phba);
4281         if (unlikely(rc))
4282                 goto out_free_bsmbx;
4283
4284         /* IF Type 0 ports get initialized now. */
4285         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4286             LPFC_SLI_INTF_IF_TYPE_0) {
4287                 rc = lpfc_pci_function_reset(phba);
4288                 if (unlikely(rc))
4289                         goto out_free_bsmbx;
4290         }
4291
4292         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4293                                                        GFP_KERNEL);
4294         if (!mboxq) {
4295                 rc = -ENOMEM;
4296                 goto out_free_bsmbx;
4297         }
4298
4299         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4300         lpfc_supported_pages(mboxq);
4301         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4302         if (!rc) {
4303                 mqe = &mboxq->u.mqe;
4304                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4305                        LPFC_MAX_SUPPORTED_PAGES);
4306                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4307                         switch (pn_page[i]) {
4308                         case LPFC_SLI4_PARAMETERS:
4309                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4310                                 break;
4311                         default:
4312                                 break;
4313                         }
4314                 }
4315                 /* Read the port's SLI4 Parameters capabilities if supported. */
4316                 if (phba->sli4_hba.pc_sli4_params.supported)
4317                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4318                 if (rc) {
4319                         mempool_free(mboxq, phba->mbox_mem_pool);
4320                         rc = -EIO;
4321                         goto out_free_bsmbx;
4322                 }
4323         }
4324         /*
4325          * Get sli4 parameters that override parameters from Port capabilities.
4326          * If this call fails it is not a critical error so continue loading.
4327          */
4328         lpfc_get_sli4_parameters(phba, mboxq);
4329         mempool_free(mboxq, phba->mbox_mem_pool);
4330         /* Create all the SLI4 queues */
4331         rc = lpfc_sli4_queue_create(phba);
4332         if (rc)
4333                 goto out_free_bsmbx;
4334
4335         /* Create driver internal CQE event pool */
4336         rc = lpfc_sli4_cq_event_pool_create(phba);
4337         if (rc)
4338                 goto out_destroy_queue;
4339
4340         /* Initialize and populate the iocb list per host */
4341         rc = lpfc_init_sgl_list(phba);
4342         if (rc) {
4343                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4344                                 "1400 Failed to initialize sgl list.\n");
4345                 goto out_destroy_cq_event_pool;
4346         }
4347         rc = lpfc_init_active_sgl_array(phba);
4348         if (rc) {
4349                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4350                                 "1430 Failed to initialize sgl list.\n");
4351                 goto out_free_sgl_list;
4352         }
4353
4354         rc = lpfc_sli4_init_rpi_hdrs(phba);
4355         if (rc) {
4356                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4357                                 "1432 Failed to initialize rpi headers.\n");
4358                 goto out_free_active_sgl;
4359         }
4360
4361         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4362         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4363         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4364                                          GFP_KERNEL);
4365         if (!phba->fcf.fcf_rr_bmask) {
4366                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4367                                 "2759 Failed allocate memory for FCF round "
4368                                 "robin failover bmask\n");
4369                 goto out_remove_rpi_hdrs;
4370         }
4371
4372         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4373                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4374         if (!phba->sli4_hba.fcp_eq_hdl) {
4375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4376                                 "2572 Failed allocate memory for fast-path "
4377                                 "per-EQ handle array\n");
4378                 goto out_free_fcf_rr_bmask;
4379         }
4380
4381         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4382                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4383         if (!phba->sli4_hba.msix_entries) {
4384                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4385                                 "2573 Failed allocate memory for msi-x "
4386                                 "interrupt vector entries\n");
4387                 goto out_free_fcp_eq_hdl;
4388         }
4389
4390         return rc;
4391
4392 out_free_fcp_eq_hdl:
4393         kfree(phba->sli4_hba.fcp_eq_hdl);
4394 out_free_fcf_rr_bmask:
4395         kfree(phba->fcf.fcf_rr_bmask);
4396 out_remove_rpi_hdrs:
4397         lpfc_sli4_remove_rpi_hdrs(phba);
4398 out_free_active_sgl:
4399         lpfc_free_active_sgl(phba);
4400 out_free_sgl_list:
4401         lpfc_free_sgl_list(phba);
4402 out_destroy_cq_event_pool:
4403         lpfc_sli4_cq_event_pool_destroy(phba);
4404 out_destroy_queue:
4405         lpfc_sli4_queue_destroy(phba);
4406 out_free_bsmbx:
4407         lpfc_destroy_bootstrap_mbox(phba);
4408 out_free_mem:
4409         lpfc_mem_free(phba);
4410         return rc;
4411 }
4412
4413 /**
4414  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4415  * @phba: pointer to lpfc hba data structure.
4416  *
4417  * This routine is invoked to unset the driver internal resources set up
4418  * specific for supporting the SLI-4 HBA device it attached to.
4419  **/
4420 static void
4421 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4422 {
4423         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4424
4425         /* Free memory allocated for msi-x interrupt vector entries */
4426         kfree(phba->sli4_hba.msix_entries);
4427
4428         /* Free memory allocated for fast-path work queue handles */
4429         kfree(phba->sli4_hba.fcp_eq_hdl);
4430
4431         /* Free the allocated rpi headers. */
4432         lpfc_sli4_remove_rpi_hdrs(phba);
4433         lpfc_sli4_remove_rpis(phba);
4434
4435         /* Free eligible FCF index bmask */
4436         kfree(phba->fcf.fcf_rr_bmask);
4437
4438         /* Free the ELS sgl list */
4439         lpfc_free_active_sgl(phba);
4440         lpfc_free_sgl_list(phba);
4441
4442         /* Free the SCSI sgl management array */
4443         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4444
4445         /* Free the SLI4 queues */
4446         lpfc_sli4_queue_destroy(phba);
4447
4448         /* Free the completion queue EQ event pool */
4449         lpfc_sli4_cq_event_release_all(phba);
4450         lpfc_sli4_cq_event_pool_destroy(phba);
4451
4452         /* Free the bsmbx region. */
4453         lpfc_destroy_bootstrap_mbox(phba);
4454
4455         /* Free the SLI Layer memory with SLI4 HBAs */
4456         lpfc_mem_free_all(phba);
4457
4458         /* Free the current connect table */
4459         list_for_each_entry_safe(conn_entry, next_conn_entry,
4460                 &phba->fcf_conn_rec_list, list) {
4461                 list_del_init(&conn_entry->list);
4462                 kfree(conn_entry);
4463         }
4464
4465         return;
4466 }
4467
4468 /**
4469  * lpfc_init_api_table_setup - Set up init api function jump table
4470  * @phba: The hba struct for which this call is being executed.
4471  * @dev_grp: The HBA PCI-Device group number.
4472  *
4473  * This routine sets up the device INIT interface API function jump table
4474  * in @phba struct.
4475  *
4476  * Returns: 0 - success, -ENODEV - failure.
4477  **/
4478 int
4479 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4480 {
4481         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4482         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4483         phba->lpfc_selective_reset = lpfc_selective_reset;
4484         switch (dev_grp) {
4485         case LPFC_PCI_DEV_LP:
4486                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4487                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4488                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4489                 break;
4490         case LPFC_PCI_DEV_OC:
4491                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4492                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4493                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4494                 break;
4495         default:
4496                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4497                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4498                                 dev_grp);
4499                 return -ENODEV;
4500                 break;
4501         }
4502         return 0;
4503 }
4504
4505 /**
4506  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4507  * @phba: pointer to lpfc hba data structure.
4508  *
4509  * This routine is invoked to set up the driver internal resources before the
4510  * device specific resource setup to support the HBA device it attached to.
4511  *
4512  * Return codes
4513  *      0 - successful
4514  *      other values - error
4515  **/
4516 static int
4517 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4518 {
4519         /*
4520          * Driver resources common to all SLI revisions
4521          */
4522         atomic_set(&phba->fast_event_count, 0);
4523         spin_lock_init(&phba->hbalock);
4524
4525         /* Initialize ndlp management spinlock */
4526         spin_lock_init(&phba->ndlp_lock);
4527
4528         INIT_LIST_HEAD(&phba->port_list);
4529         INIT_LIST_HEAD(&phba->work_list);
4530         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4531
4532         /* Initialize the wait queue head for the kernel thread */
4533         init_waitqueue_head(&phba->work_waitq);
4534
4535         /* Initialize the scsi buffer list used by driver for scsi IO */
4536         spin_lock_init(&phba->scsi_buf_list_lock);
4537         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4538
4539         /* Initialize the fabric iocb list */
4540         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4541
4542         /* Initialize list to save ELS buffers */
4543         INIT_LIST_HEAD(&phba->elsbuf);
4544
4545         /* Initialize FCF connection rec list */
4546         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4547
4548         return 0;
4549 }
4550
4551 /**
4552  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4553  * @phba: pointer to lpfc hba data structure.
4554  *
4555  * This routine is invoked to set up the driver internal resources after the
4556  * device specific resource setup to support the HBA device it attached to.
4557  *
4558  * Return codes
4559  *      0 - successful
4560  *      other values - error
4561  **/
4562 static int
4563 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4564 {
4565         int error;
4566
4567         /* Startup the kernel thread for this host adapter. */
4568         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4569                                           "lpfc_worker_%d", phba->brd_no);
4570         if (IS_ERR(phba->worker_thread)) {
4571                 error = PTR_ERR(phba->worker_thread);
4572                 return error;
4573         }
4574
4575         return 0;
4576 }
4577
4578 /**
4579  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4580  * @phba: pointer to lpfc hba data structure.
4581  *
4582  * This routine is invoked to unset the driver internal resources set up after
4583  * the device specific resource setup for supporting the HBA device it
4584  * attached to.
4585  **/
4586 static void
4587 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4588 {
4589         /* Stop kernel worker thread */
4590         kthread_stop(phba->worker_thread);
4591 }
4592
4593 /**
4594  * lpfc_free_iocb_list - Free iocb list.
4595  * @phba: pointer to lpfc hba data structure.
4596  *
4597  * This routine is invoked to free the driver's IOCB list and memory.
4598  **/
4599 static void
4600 lpfc_free_iocb_list(struct lpfc_hba *phba)
4601 {
4602         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4603
4604         spin_lock_irq(&phba->hbalock);
4605         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4606                                  &phba->lpfc_iocb_list, list) {
4607                 list_del(&iocbq_entry->list);
4608                 kfree(iocbq_entry);
4609                 phba->total_iocbq_bufs--;
4610         }
4611         spin_unlock_irq(&phba->hbalock);
4612
4613         return;
4614 }
4615
4616 /**
4617  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4618  * @phba: pointer to lpfc hba data structure.
4619  *
4620  * This routine is invoked to allocate and initizlize the driver's IOCB
4621  * list and set up the IOCB tag array accordingly.
4622  *
4623  * Return codes
4624  *      0 - successful
4625  *      other values - error
4626  **/
4627 static int
4628 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4629 {
4630         struct lpfc_iocbq *iocbq_entry = NULL;
4631         uint16_t iotag;
4632         int i;
4633
4634         /* Initialize and populate the iocb list per host.  */
4635         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4636         for (i = 0; i < iocb_count; i++) {
4637                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4638                 if (iocbq_entry == NULL) {
4639                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4640                                 "expected %d count. Unloading driver.\n",
4641                                 __func__, i, LPFC_IOCB_LIST_CNT);
4642                         goto out_free_iocbq;
4643                 }
4644
4645                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4646                 if (iotag == 0) {
4647                         kfree(iocbq_entry);
4648                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4649                                 "Unloading driver.\n", __func__);
4650                         goto out_free_iocbq;
4651                 }
4652                 iocbq_entry->sli4_xritag = NO_XRI;
4653
4654                 spin_lock_irq(&phba->hbalock);
4655                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4656                 phba->total_iocbq_bufs++;
4657                 spin_unlock_irq(&phba->hbalock);
4658         }
4659
4660         return 0;
4661
4662 out_free_iocbq:
4663         lpfc_free_iocb_list(phba);
4664
4665         return -ENOMEM;
4666 }
4667
4668 /**
4669  * lpfc_free_sgl_list - Free sgl list.
4670  * @phba: pointer to lpfc hba data structure.
4671  *
4672  * This routine is invoked to free the driver's sgl list and memory.
4673  **/
4674 static void
4675 lpfc_free_sgl_list(struct lpfc_hba *phba)
4676 {
4677         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4678         LIST_HEAD(sglq_list);
4679
4680         spin_lock_irq(&phba->hbalock);
4681         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4682         spin_unlock_irq(&phba->hbalock);
4683
4684         list_for_each_entry_safe(sglq_entry, sglq_next,
4685                                  &sglq_list, list) {
4686                 list_del(&sglq_entry->list);
4687                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4688                 kfree(sglq_entry);
4689                 phba->sli4_hba.total_sglq_bufs--;
4690         }
4691         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4692 }
4693
4694 /**
4695  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4696  * @phba: pointer to lpfc hba data structure.
4697  *
4698  * This routine is invoked to allocate the driver's active sgl memory.
4699  * This array will hold the sglq_entry's for active IOs.
4700  **/
4701 static int
4702 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4703 {
4704         int size;
4705         size = sizeof(struct lpfc_sglq *);
4706         size *= phba->sli4_hba.max_cfg_param.max_xri;
4707
4708         phba->sli4_hba.lpfc_sglq_active_list =
4709                 kzalloc(size, GFP_KERNEL);
4710         if (!phba->sli4_hba.lpfc_sglq_active_list)
4711                 return -ENOMEM;
4712         return 0;
4713 }
4714
4715 /**
4716  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4717  * @phba: pointer to lpfc hba data structure.
4718  *
4719  * This routine is invoked to walk through the array of active sglq entries
4720  * and free all of the resources.
4721  * This is just a place holder for now.
4722  **/
4723 static void
4724 lpfc_free_active_sgl(struct lpfc_hba *phba)
4725 {
4726         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4727 }
4728
4729 /**
4730  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4731  * @phba: pointer to lpfc hba data structure.
4732  *
4733  * This routine is invoked to allocate and initizlize the driver's sgl
4734  * list and set up the sgl xritag tag array accordingly.
4735  *
4736  * Return codes
4737  *      0 - successful
4738  *      other values - error
4739  **/
4740 static int
4741 lpfc_init_sgl_list(struct lpfc_hba *phba)
4742 {
4743         struct lpfc_sglq *sglq_entry = NULL;
4744         int i;
4745         int els_xri_cnt;
4746
4747         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4748         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4749                                 "2400 lpfc_init_sgl_list els %d.\n",
4750                                 els_xri_cnt);
4751         /* Initialize and populate the sglq list per host/VF. */
4752         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4753         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4754
4755         /* Sanity check on XRI management */
4756         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4757                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4758                                 "2562 No room left for SCSI XRI allocation: "
4759                                 "max_xri=%d, els_xri=%d\n",
4760                                 phba->sli4_hba.max_cfg_param.max_xri,
4761                                 els_xri_cnt);
4762                 return -ENOMEM;
4763         }
4764
4765         /* Allocate memory for the ELS XRI management array */
4766         phba->sli4_hba.lpfc_els_sgl_array =
4767                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4768                         GFP_KERNEL);
4769
4770         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4771                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4772                                 "2401 Failed to allocate memory for ELS "
4773                                 "XRI management array of size %d.\n",
4774                                 els_xri_cnt);
4775                 return -ENOMEM;
4776         }
4777
4778         /* Keep the SCSI XRI into the XRI management array */
4779         phba->sli4_hba.scsi_xri_max =
4780                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4781         phba->sli4_hba.scsi_xri_cnt = 0;
4782
4783         phba->sli4_hba.lpfc_scsi_psb_array =
4784                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4785                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4786
4787         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4788                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4789                                 "2563 Failed to allocate memory for SCSI "
4790                                 "XRI management array of size %d.\n",
4791                                 phba->sli4_hba.scsi_xri_max);
4792                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4793                 return -ENOMEM;
4794         }
4795
4796         for (i = 0; i < els_xri_cnt; i++) {
4797                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4798                 if (sglq_entry == NULL) {
4799                         printk(KERN_ERR "%s: only allocated %d sgls of "
4800                                 "expected %d count. Unloading driver.\n",
4801                                 __func__, i, els_xri_cnt);
4802                         goto out_free_mem;
4803                 }
4804
4805                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4806                 if (sglq_entry->sli4_xritag == NO_XRI) {
4807                         kfree(sglq_entry);
4808                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4809                                 "Unloading driver.\n", __func__);
4810                         goto out_free_mem;
4811                 }
4812                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4813                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4814                 if (sglq_entry->virt == NULL) {
4815                         kfree(sglq_entry);
4816                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4817                                 "Unloading driver.\n", __func__);
4818                         goto out_free_mem;
4819                 }
4820                 sglq_entry->sgl = sglq_entry->virt;
4821                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4822
4823                 /* The list order is used by later block SGL registraton */
4824                 spin_lock_irq(&phba->hbalock);
4825                 sglq_entry->state = SGL_FREED;
4826                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4827                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4828                 phba->sli4_hba.total_sglq_bufs++;
4829                 spin_unlock_irq(&phba->hbalock);
4830         }
4831         return 0;
4832
4833 out_free_mem:
4834         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4835         lpfc_free_sgl_list(phba);
4836         return -ENOMEM;
4837 }
4838
4839 /**
4840  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4841  * @phba: pointer to lpfc hba data structure.
4842  *
4843  * This routine is invoked to post rpi header templates to the
4844  * HBA consistent with the SLI-4 interface spec.  This routine
4845  * posts a PAGE_SIZE memory region to the port to hold up to
4846  * PAGE_SIZE modulo 64 rpi context headers.
4847  * No locks are held here because this is an initialization routine
4848  * called only from probe or lpfc_online when interrupts are not
4849  * enabled and the driver is reinitializing the device.
4850  *
4851  * Return codes
4852  *      0 - successful
4853  *      -ENOMEM - No available memory
4854  *      -EIO - The mailbox failed to complete successfully.
4855  **/
4856 int
4857 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4858 {
4859         int rc = 0;
4860         int longs;
4861         uint16_t rpi_count;
4862         struct lpfc_rpi_hdr *rpi_hdr;
4863
4864         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4865
4866         /*
4867          * Provision an rpi bitmask range for discovery. The total count
4868          * is the difference between max and base + 1.
4869          */
4870         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4871                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4872
4873         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4874         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4875                                            GFP_KERNEL);
4876         if (!phba->sli4_hba.rpi_bmask)
4877                 return -ENOMEM;
4878
4879         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4880         if (!rpi_hdr) {
4881                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4882                                 "0391 Error during rpi post operation\n");
4883                 lpfc_sli4_remove_rpis(phba);
4884                 rc = -ENODEV;
4885         }
4886
4887         return rc;
4888 }
4889
4890 /**
4891  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4892  * @phba: pointer to lpfc hba data structure.
4893  *
4894  * This routine is invoked to allocate a single 4KB memory region to
4895  * support rpis and stores them in the phba.  This single region
4896  * provides support for up to 64 rpis.  The region is used globally
4897  * by the device.
4898  *
4899  * Returns:
4900  *   A valid rpi hdr on success.
4901  *   A NULL pointer on any failure.
4902  **/
4903 struct lpfc_rpi_hdr *
4904 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4905 {
4906         uint16_t rpi_limit, curr_rpi_range;
4907         struct lpfc_dmabuf *dmabuf;
4908         struct lpfc_rpi_hdr *rpi_hdr;
4909         uint32_t rpi_count;
4910
4911         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4912                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4913
4914         spin_lock_irq(&phba->hbalock);
4915         curr_rpi_range = phba->sli4_hba.next_rpi;
4916         spin_unlock_irq(&phba->hbalock);
4917
4918         /*
4919          * The port has a limited number of rpis. The increment here
4920          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4921          * and to allow the full max_rpi range per port.
4922          */
4923         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4924                 rpi_count = rpi_limit - curr_rpi_range;
4925         else
4926                 rpi_count = LPFC_RPI_HDR_COUNT;
4927
4928         /*
4929          * First allocate the protocol header region for the port.  The
4930          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4931          */
4932         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4933         if (!dmabuf)
4934                 return NULL;
4935
4936         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4937                                           LPFC_HDR_TEMPLATE_SIZE,
4938                                           &dmabuf->phys,
4939                                           GFP_KERNEL);
4940         if (!dmabuf->virt) {
4941                 rpi_hdr = NULL;
4942                 goto err_free_dmabuf;
4943         }
4944
4945         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4946         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4947                 rpi_hdr = NULL;
4948                 goto err_free_coherent;
4949         }
4950
4951         /* Save the rpi header data for cleanup later. */
4952         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4953         if (!rpi_hdr)
4954                 goto err_free_coherent;
4955
4956         rpi_hdr->dmabuf = dmabuf;
4957         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4958         rpi_hdr->page_count = 1;
4959         spin_lock_irq(&phba->hbalock);
4960         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4961         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4962
4963         /*
4964          * The next_rpi stores the next module-64 rpi value to post
4965          * in any subsequent rpi memory region postings.
4966          */
4967         phba->sli4_hba.next_rpi += rpi_count;
4968         spin_unlock_irq(&phba->hbalock);
4969         return rpi_hdr;
4970
4971  err_free_coherent:
4972         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4973                           dmabuf->virt, dmabuf->phys);
4974  err_free_dmabuf:
4975         kfree(dmabuf);
4976         return NULL;
4977 }
4978
4979 /**
4980  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4981  * @phba: pointer to lpfc hba data structure.
4982  *
4983  * This routine is invoked to remove all memory resources allocated
4984  * to support rpis. This routine presumes the caller has released all
4985  * rpis consumed by fabric or port logins and is prepared to have
4986  * the header pages removed.
4987  **/
4988 void
4989 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4990 {
4991         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4992
4993         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4994                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4995                 list_del(&rpi_hdr->list);
4996                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4997                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4998                 kfree(rpi_hdr->dmabuf);
4999                 kfree(rpi_hdr);
5000         }
5001
5002         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5003         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
5004 }
5005
5006 /**
5007  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5008  * @pdev: pointer to pci device data structure.
5009  *
5010  * This routine is invoked to allocate the driver hba data structure for an
5011  * HBA device. If the allocation is successful, the phba reference to the
5012  * PCI device data structure is set.
5013  *
5014  * Return codes
5015  *      pointer to @phba - successful
5016  *      NULL - error
5017  **/
5018 static struct lpfc_hba *
5019 lpfc_hba_alloc(struct pci_dev *pdev)
5020 {
5021         struct lpfc_hba *phba;
5022
5023         /* Allocate memory for HBA structure */
5024         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5025         if (!phba) {
5026                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5027                 return NULL;
5028         }
5029
5030         /* Set reference to PCI device in HBA structure */
5031         phba->pcidev = pdev;
5032
5033         /* Assign an unused board number */
5034         phba->brd_no = lpfc_get_instance();
5035         if (phba->brd_no < 0) {
5036                 kfree(phba);
5037                 return NULL;
5038         }
5039
5040         spin_lock_init(&phba->ct_ev_lock);
5041         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5042
5043         return phba;
5044 }
5045
5046 /**
5047  * lpfc_hba_free - Free driver hba data structure with a device.
5048  * @phba: pointer to lpfc hba data structure.
5049  *
5050  * This routine is invoked to free the driver hba data structure with an
5051  * HBA device.
5052  **/
5053 static void
5054 lpfc_hba_free(struct lpfc_hba *phba)
5055 {
5056         /* Release the driver assigned board number */
5057         idr_remove(&lpfc_hba_index, phba->brd_no);
5058
5059         kfree(phba);
5060         return;
5061 }
5062
5063 /**
5064  * lpfc_create_shost - Create hba physical port with associated scsi host.
5065  * @phba: pointer to lpfc hba data structure.
5066  *
5067  * This routine is invoked to create HBA physical port and associate a SCSI
5068  * host with it.
5069  *
5070  * Return codes
5071  *      0 - successful
5072  *      other values - error
5073  **/
5074 static int
5075 lpfc_create_shost(struct lpfc_hba *phba)
5076 {
5077         struct lpfc_vport *vport;
5078         struct Scsi_Host  *shost;
5079
5080         /* Initialize HBA FC structure */
5081         phba->fc_edtov = FF_DEF_EDTOV;
5082         phba->fc_ratov = FF_DEF_RATOV;
5083         phba->fc_altov = FF_DEF_ALTOV;
5084         phba->fc_arbtov = FF_DEF_ARBTOV;
5085
5086         atomic_set(&phba->sdev_cnt, 0);
5087         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5088         if (!vport)
5089                 return -ENODEV;
5090
5091         shost = lpfc_shost_from_vport(vport);
5092         phba->pport = vport;
5093         lpfc_debugfs_initialize(vport);
5094         /* Put reference to SCSI host to driver's device private data */
5095         pci_set_drvdata(phba->pcidev, shost);
5096
5097         return 0;
5098 }
5099
5100 /**
5101  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5102  * @phba: pointer to lpfc hba data structure.
5103  *
5104  * This routine is invoked to destroy HBA physical port and the associated
5105  * SCSI host.
5106  **/
5107 static void
5108 lpfc_destroy_shost(struct lpfc_hba *phba)
5109 {
5110         struct lpfc_vport *vport = phba->pport;
5111
5112         /* Destroy physical port that associated with the SCSI host */
5113         destroy_port(vport);
5114
5115         return;
5116 }
5117
5118 /**
5119  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5120  * @phba: pointer to lpfc hba data structure.
5121  * @shost: the shost to be used to detect Block guard settings.
5122  *
5123  * This routine sets up the local Block guard protocol settings for @shost.
5124  * This routine also allocates memory for debugging bg buffers.
5125  **/
5126 static void
5127 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5128 {
5129         int pagecnt = 10;
5130         if (lpfc_prot_mask && lpfc_prot_guard) {
5131                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5132                                 "1478 Registering BlockGuard with the "
5133                                 "SCSI layer\n");
5134                 scsi_host_set_prot(shost, lpfc_prot_mask);
5135                 scsi_host_set_guard(shost, lpfc_prot_guard);
5136         }
5137         if (!_dump_buf_data) {
5138                 while (pagecnt) {
5139                         spin_lock_init(&_dump_buf_lock);
5140                         _dump_buf_data =
5141                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5142                         if (_dump_buf_data) {
5143                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5144                                         "9043 BLKGRD: allocated %d pages for "
5145                                        "_dump_buf_data at 0x%p\n",
5146                                        (1 << pagecnt), _dump_buf_data);
5147                                 _dump_buf_data_order = pagecnt;
5148                                 memset(_dump_buf_data, 0,
5149                                        ((1 << PAGE_SHIFT) << pagecnt));
5150                                 break;
5151                         } else
5152                                 --pagecnt;
5153                 }
5154                 if (!_dump_buf_data_order)
5155                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5156                                 "9044 BLKGRD: ERROR unable to allocate "
5157                                "memory for hexdump\n");
5158         } else
5159                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5160                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5161                        "\n", _dump_buf_data);
5162         if (!_dump_buf_dif) {
5163                 while (pagecnt) {
5164                         _dump_buf_dif =
5165                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5166                         if (_dump_buf_dif) {
5167                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5168                                         "9046 BLKGRD: allocated %d pages for "
5169                                        "_dump_buf_dif at 0x%p\n",
5170                                        (1 << pagecnt), _dump_buf_dif);
5171                                 _dump_buf_dif_order = pagecnt;
5172                                 memset(_dump_buf_dif, 0,
5173                                        ((1 << PAGE_SHIFT) << pagecnt));
5174                                 break;
5175                         } else
5176                                 --pagecnt;
5177                 }
5178                 if (!_dump_buf_dif_order)
5179                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5180                         "9047 BLKGRD: ERROR unable to allocate "
5181                                "memory for hexdump\n");
5182         } else
5183                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5184                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5185                        _dump_buf_dif);
5186 }
5187
5188 /**
5189  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5190  * @phba: pointer to lpfc hba data structure.
5191  *
5192  * This routine is invoked to perform all the necessary post initialization
5193  * setup for the device.
5194  **/
5195 static void
5196 lpfc_post_init_setup(struct lpfc_hba *phba)
5197 {
5198         struct Scsi_Host  *shost;
5199         struct lpfc_adapter_event_header adapter_event;
5200
5201         /* Get the default values for Model Name and Description */
5202         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5203
5204         /*
5205          * hba setup may have changed the hba_queue_depth so we need to
5206          * adjust the value of can_queue.
5207          */
5208         shost = pci_get_drvdata(phba->pcidev);
5209         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5210         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5211                 lpfc_setup_bg(phba, shost);
5212
5213         lpfc_host_attrib_init(shost);
5214
5215         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5216                 spin_lock_irq(shost->host_lock);
5217                 lpfc_poll_start_timer(phba);
5218                 spin_unlock_irq(shost->host_lock);
5219         }
5220
5221         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5222                         "0428 Perform SCSI scan\n");
5223         /* Send board arrival event to upper layer */
5224         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5225         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5226         fc_host_post_vendor_event(shost, fc_get_event_number(),
5227                                   sizeof(adapter_event),
5228                                   (char *) &adapter_event,
5229                                   LPFC_NL_VENDOR_ID);
5230         return;
5231 }
5232
5233 /**
5234  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5235  * @phba: pointer to lpfc hba data structure.
5236  *
5237  * This routine is invoked to set up the PCI device memory space for device
5238  * with SLI-3 interface spec.
5239  *
5240  * Return codes
5241  *      0 - successful
5242  *      other values - error
5243  **/
5244 static int
5245 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5246 {
5247         struct pci_dev *pdev;
5248         unsigned long bar0map_len, bar2map_len;
5249         int i, hbq_count;
5250         void *ptr;
5251         int error = -ENODEV;
5252
5253         /* Obtain PCI device reference */
5254         if (!phba->pcidev)
5255                 return error;
5256         else
5257                 pdev = phba->pcidev;
5258
5259         /* Set the device DMA mask size */
5260         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5261          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5262                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5263                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5264                         return error;
5265                 }
5266         }
5267
5268         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5269          * required by each mapping.
5270          */
5271         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5272         bar0map_len = pci_resource_len(pdev, 0);
5273
5274         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5275         bar2map_len = pci_resource_len(pdev, 2);
5276
5277         /* Map HBA SLIM to a kernel virtual address. */
5278         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5279         if (!phba->slim_memmap_p) {
5280                 dev_printk(KERN_ERR, &pdev->dev,
5281                            "ioremap failed for SLIM memory.\n");
5282                 goto out;
5283         }
5284
5285         /* Map HBA Control Registers to a kernel virtual address. */
5286         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5287         if (!phba->ctrl_regs_memmap_p) {
5288                 dev_printk(KERN_ERR, &pdev->dev,
5289                            "ioremap failed for HBA control registers.\n");
5290                 goto out_iounmap_slim;
5291         }
5292
5293         /* Allocate memory for SLI-2 structures */
5294         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5295                                                SLI2_SLIM_SIZE,
5296                                                &phba->slim2p.phys,
5297                                                GFP_KERNEL);
5298         if (!phba->slim2p.virt)
5299                 goto out_iounmap;
5300
5301         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5302         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5303         phba->mbox_ext = (phba->slim2p.virt +
5304                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5305         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5306         phba->IOCBs = (phba->slim2p.virt +
5307                        offsetof(struct lpfc_sli2_slim, IOCBs));
5308
5309         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5310                                                  lpfc_sli_hbq_size(),
5311                                                  &phba->hbqslimp.phys,
5312                                                  GFP_KERNEL);
5313         if (!phba->hbqslimp.virt)
5314                 goto out_free_slim;
5315
5316         hbq_count = lpfc_sli_hbq_count();
5317         ptr = phba->hbqslimp.virt;
5318         for (i = 0; i < hbq_count; ++i) {
5319                 phba->hbqs[i].hbq_virt = ptr;
5320                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5321                 ptr += (lpfc_hbq_defs[i]->entry_count *
5322                         sizeof(struct lpfc_hbq_entry));
5323         }
5324         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5325         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5326
5327         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5328
5329         INIT_LIST_HEAD(&phba->rb_pend_list);
5330
5331         phba->MBslimaddr = phba->slim_memmap_p;
5332         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5333         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5334         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5335         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5336
5337         return 0;
5338
5339 out_free_slim:
5340         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5341                           phba->slim2p.virt, phba->slim2p.phys);
5342 out_iounmap:
5343         iounmap(phba->ctrl_regs_memmap_p);
5344 out_iounmap_slim:
5345         iounmap(phba->slim_memmap_p);
5346 out:
5347         return error;
5348 }
5349
5350 /**
5351  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5352  * @phba: pointer to lpfc hba data structure.
5353  *
5354  * This routine is invoked to unset the PCI device memory space for device
5355  * with SLI-3 interface spec.
5356  **/
5357 static void
5358 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5359 {
5360         struct pci_dev *pdev;
5361
5362         /* Obtain PCI device reference */
5363         if (!phba->pcidev)
5364                 return;
5365         else
5366                 pdev = phba->pcidev;
5367
5368         /* Free coherent DMA memory allocated */
5369         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5370                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5371         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5372                           phba->slim2p.virt, phba->slim2p.phys);
5373
5374         /* I/O memory unmap */
5375         iounmap(phba->ctrl_regs_memmap_p);
5376         iounmap(phba->slim_memmap_p);
5377
5378         return;
5379 }
5380
5381 /**
5382  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5383  * @phba: pointer to lpfc hba data structure.
5384  *
5385  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5386  * done and check status.
5387  *
5388  * Return 0 if successful, otherwise -ENODEV.
5389  **/
5390 int
5391 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5392 {
5393         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5394         struct lpfc_register reg_data;
5395         int i, port_error = 0;
5396         uint32_t if_type;
5397
5398         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5399         memset(&reg_data, 0, sizeof(reg_data));
5400         if (!phba->sli4_hba.PSMPHRregaddr)
5401                 return -ENODEV;
5402
5403         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5404         for (i = 0; i < 3000; i++) {
5405                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5406                         &portsmphr_reg.word0) ||
5407                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5408                         /* Port has a fatal POST error, break out */
5409                         port_error = -ENODEV;
5410                         break;
5411                 }
5412                 if (LPFC_POST_STAGE_PORT_READY ==
5413                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5414                         break;
5415                 msleep(10);
5416         }
5417
5418         /*
5419          * If there was a port error during POST, then don't proceed with
5420          * other register reads as the data may not be valid.  Just exit.
5421          */
5422         if (port_error) {
5423                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5424                         "1408 Port Failed POST - portsmphr=0x%x, "
5425                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5426                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5427                         portsmphr_reg.word0,
5428                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5429                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5430                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5431                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5432                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5433                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5434                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5435                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5436         } else {
5437                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5438                                 "2534 Device Info: SLIFamily=0x%x, "
5439                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5440                                 "SLIHint_2=0x%x, FT=0x%x\n",
5441                                 bf_get(lpfc_sli_intf_sli_family,
5442                                        &phba->sli4_hba.sli_intf),
5443                                 bf_get(lpfc_sli_intf_slirev,
5444                                        &phba->sli4_hba.sli_intf),
5445                                 bf_get(lpfc_sli_intf_if_type,
5446                                        &phba->sli4_hba.sli_intf),
5447                                 bf_get(lpfc_sli_intf_sli_hint1,
5448                                        &phba->sli4_hba.sli_intf),
5449                                 bf_get(lpfc_sli_intf_sli_hint2,
5450                                        &phba->sli4_hba.sli_intf),
5451                                 bf_get(lpfc_sli_intf_func_type,
5452                                        &phba->sli4_hba.sli_intf));
5453                 /*
5454                  * Check for other Port errors during the initialization
5455                  * process.  Fail the load if the port did not come up
5456                  * correctly.
5457                  */
5458                 if_type = bf_get(lpfc_sli_intf_if_type,
5459                                  &phba->sli4_hba.sli_intf);
5460                 switch (if_type) {
5461                 case LPFC_SLI_INTF_IF_TYPE_0:
5462                         phba->sli4_hba.ue_mask_lo =
5463                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5464                         phba->sli4_hba.ue_mask_hi =
5465                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5466                         uerrlo_reg.word0 =
5467                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5468                         uerrhi_reg.word0 =
5469                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5470                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5471                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5472                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5473                                                 "1422 Unrecoverable Error "
5474                                                 "Detected during POST "
5475                                                 "uerr_lo_reg=0x%x, "
5476                                                 "uerr_hi_reg=0x%x, "
5477                                                 "ue_mask_lo_reg=0x%x, "
5478                                                 "ue_mask_hi_reg=0x%x\n",
5479                                                 uerrlo_reg.word0,
5480                                                 uerrhi_reg.word0,
5481                                                 phba->sli4_hba.ue_mask_lo,
5482                                                 phba->sli4_hba.ue_mask_hi);
5483                                 port_error = -ENODEV;
5484                         }
5485                         break;
5486                 case LPFC_SLI_INTF_IF_TYPE_2:
5487                         /* Final checks.  The port status should be clean. */
5488                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5489                                 &reg_data.word0) ||
5490                                 bf_get(lpfc_sliport_status_err, &reg_data)) {
5491                                 phba->work_status[0] =
5492                                         readl(phba->sli4_hba.u.if_type2.
5493                                               ERR1regaddr);
5494                                 phba->work_status[1] =
5495                                         readl(phba->sli4_hba.u.if_type2.
5496                                               ERR2regaddr);
5497                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5498                                         "2888 Port Error Detected "
5499                                         "during POST: "
5500                                         "port status reg 0x%x, "
5501                                         "port_smphr reg 0x%x, "
5502                                         "error 1=0x%x, error 2=0x%x\n",
5503                                         reg_data.word0,
5504                                         portsmphr_reg.word0,
5505                                         phba->work_status[0],
5506                                         phba->work_status[1]);
5507                                 port_error = -ENODEV;
5508                         }
5509                         break;
5510                 case LPFC_SLI_INTF_IF_TYPE_1:
5511                 default:
5512                         break;
5513                 }
5514         }
5515         return port_error;
5516 }
5517
5518 /**
5519  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5520  * @phba: pointer to lpfc hba data structure.
5521  * @if_type:  The SLI4 interface type getting configured.
5522  *
5523  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5524  * memory map.
5525  **/
5526 static void
5527 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5528 {
5529         switch (if_type) {
5530         case LPFC_SLI_INTF_IF_TYPE_0:
5531                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5532                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5533                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5534                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5535                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5536                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5537                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5538                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5539                 phba->sli4_hba.SLIINTFregaddr =
5540                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5541                 break;
5542         case LPFC_SLI_INTF_IF_TYPE_2:
5543                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5544                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5545                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5546                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5547                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5548                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5549                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5550                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5551                 phba->sli4_hba.SLIINTFregaddr =
5552                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5553                 phba->sli4_hba.PSMPHRregaddr =
5554                      phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5555                 phba->sli4_hba.RQDBregaddr =
5556                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5557                 phba->sli4_hba.WQDBregaddr =
5558                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5559                 phba->sli4_hba.EQCQDBregaddr =
5560                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5561                 phba->sli4_hba.MQDBregaddr =
5562                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5563                 phba->sli4_hba.BMBXregaddr =
5564                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5565                 break;
5566         case LPFC_SLI_INTF_IF_TYPE_1:
5567         default:
5568                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5569                            "FATAL - unsupported SLI4 interface type - %d\n",
5570                            if_type);
5571                 break;
5572         }
5573 }
5574
5575 /**
5576  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5577  * @phba: pointer to lpfc hba data structure.
5578  *
5579  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5580  * memory map.
5581  **/
5582 static void
5583 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5584 {
5585         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5586                 LPFC_SLIPORT_IF0_SMPHR;
5587         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5588                 LPFC_HST_ISR0;
5589         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5590                 LPFC_HST_IMR0;
5591         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5592                 LPFC_HST_ISCR0;
5593 }
5594
5595 /**
5596  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5597  * @phba: pointer to lpfc hba data structure.
5598  * @vf: virtual function number
5599  *
5600  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5601  * based on the given viftual function number, @vf.
5602  *
5603  * Return 0 if successful, otherwise -ENODEV.
5604  **/
5605 static int
5606 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5607 {
5608         if (vf > LPFC_VIR_FUNC_MAX)
5609                 return -ENODEV;
5610
5611         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5612                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5613         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5614                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5615         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5616                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5617         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5618                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5619         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5620                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5621         return 0;
5622 }
5623
5624 /**
5625  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5626  * @phba: pointer to lpfc hba data structure.
5627  *
5628  * This routine is invoked to create the bootstrap mailbox
5629  * region consistent with the SLI-4 interface spec.  This
5630  * routine allocates all memory necessary to communicate
5631  * mailbox commands to the port and sets up all alignment
5632  * needs.  No locks are expected to be held when calling
5633  * this routine.
5634  *
5635  * Return codes
5636  *      0 - successful
5637  *      -ENOMEM - could not allocated memory.
5638  **/
5639 static int
5640 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5641 {
5642         uint32_t bmbx_size;
5643         struct lpfc_dmabuf *dmabuf;
5644         struct dma_address *dma_address;
5645         uint32_t pa_addr;
5646         uint64_t phys_addr;
5647
5648         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5649         if (!dmabuf)
5650                 return -ENOMEM;
5651
5652         /*
5653          * The bootstrap mailbox region is comprised of 2 parts
5654          * plus an alignment restriction of 16 bytes.
5655          */
5656         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5657         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5658                                           bmbx_size,
5659                                           &dmabuf->phys,
5660                                           GFP_KERNEL);
5661         if (!dmabuf->virt) {
5662                 kfree(dmabuf);
5663                 return -ENOMEM;
5664         }
5665         memset(dmabuf->virt, 0, bmbx_size);
5666
5667         /*
5668          * Initialize the bootstrap mailbox pointers now so that the register
5669          * operations are simple later.  The mailbox dma address is required
5670          * to be 16-byte aligned.  Also align the virtual memory as each
5671          * maibox is copied into the bmbx mailbox region before issuing the
5672          * command to the port.
5673          */
5674         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5675         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5676
5677         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5678                                               LPFC_ALIGN_16_BYTE);
5679         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5680                                               LPFC_ALIGN_16_BYTE);
5681
5682         /*
5683          * Set the high and low physical addresses now.  The SLI4 alignment
5684          * requirement is 16 bytes and the mailbox is posted to the port
5685          * as two 30-bit addresses.  The other data is a bit marking whether
5686          * the 30-bit address is the high or low address.
5687          * Upcast bmbx aphys to 64bits so shift instruction compiles
5688          * clean on 32 bit machines.
5689          */
5690         dma_address = &phba->sli4_hba.bmbx.dma_address;
5691         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5692         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5693         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5694                                            LPFC_BMBX_BIT1_ADDR_HI);
5695
5696         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5697         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5698                                            LPFC_BMBX_BIT1_ADDR_LO);
5699         return 0;
5700 }
5701
5702 /**
5703  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5704  * @phba: pointer to lpfc hba data structure.
5705  *
5706  * This routine is invoked to teardown the bootstrap mailbox
5707  * region and release all host resources. This routine requires
5708  * the caller to ensure all mailbox commands recovered, no
5709  * additional mailbox comands are sent, and interrupts are disabled
5710  * before calling this routine.
5711  *
5712  **/
5713 static void
5714 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5715 {
5716         dma_free_coherent(&phba->pcidev->dev,
5717                           phba->sli4_hba.bmbx.bmbx_size,
5718                           phba->sli4_hba.bmbx.dmabuf->virt,
5719                           phba->sli4_hba.bmbx.dmabuf->phys);
5720
5721         kfree(phba->sli4_hba.bmbx.dmabuf);
5722         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5723 }
5724
5725 /**
5726  * lpfc_sli4_read_config - Get the config parameters.
5727  * @phba: pointer to lpfc hba data structure.
5728  *
5729  * This routine is invoked to read the configuration parameters from the HBA.
5730  * The configuration parameters are used to set the base and maximum values
5731  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5732  * allocation for the port.
5733  *
5734  * Return codes
5735  *      0 - successful
5736  *      -ENOMEM - No available memory
5737  *      -EIO - The mailbox failed to complete successfully.
5738  **/
5739 static int
5740 lpfc_sli4_read_config(struct lpfc_hba *phba)
5741 {
5742         LPFC_MBOXQ_t *pmb;
5743         struct lpfc_mbx_read_config *rd_config;
5744         uint32_t rc = 0;
5745
5746         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5747         if (!pmb) {
5748                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5749                                 "2011 Unable to allocate memory for issuing "
5750                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5751                 return -ENOMEM;
5752         }
5753
5754         lpfc_read_config(phba, pmb);
5755
5756         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5757         if (rc != MBX_SUCCESS) {
5758                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5759                         "2012 Mailbox failed , mbxCmd x%x "
5760                         "READ_CONFIG, mbxStatus x%x\n",
5761                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5762                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5763                 rc = -EIO;
5764         } else {
5765                 rd_config = &pmb->u.mqe.un.rd_config;
5766                 phba->sli4_hba.max_cfg_param.max_xri =
5767                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5768                 phba->sli4_hba.max_cfg_param.xri_base =
5769                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5770                 phba->sli4_hba.max_cfg_param.max_vpi =
5771                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5772                 phba->sli4_hba.max_cfg_param.vpi_base =
5773                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5774                 phba->sli4_hba.max_cfg_param.max_rpi =
5775                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5776                 phba->sli4_hba.max_cfg_param.rpi_base =
5777                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5778                 phba->sli4_hba.max_cfg_param.max_vfi =
5779                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5780                 phba->sli4_hba.max_cfg_param.vfi_base =
5781                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5782                 phba->sli4_hba.max_cfg_param.max_fcfi =
5783                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5784                 phba->sli4_hba.max_cfg_param.fcfi_base =
5785                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5786                 phba->sli4_hba.max_cfg_param.max_eq =
5787                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5788                 phba->sli4_hba.max_cfg_param.max_rq =
5789                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5790                 phba->sli4_hba.max_cfg_param.max_wq =
5791                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5792                 phba->sli4_hba.max_cfg_param.max_cq =
5793                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5794                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5795                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5796                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5797                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5798                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5799                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5800                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5801                 phba->max_vports = phba->max_vpi;
5802                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5803                                 "2003 cfg params XRI(B:%d M:%d), "
5804                                 "VPI(B:%d M:%d) "
5805                                 "VFI(B:%d M:%d) "
5806                                 "RPI(B:%d M:%d) "
5807                                 "FCFI(B:%d M:%d)\n",
5808                                 phba->sli4_hba.max_cfg_param.xri_base,
5809                                 phba->sli4_hba.max_cfg_param.max_xri,
5810                                 phba->sli4_hba.max_cfg_param.vpi_base,
5811                                 phba->sli4_hba.max_cfg_param.max_vpi,
5812                                 phba->sli4_hba.max_cfg_param.vfi_base,
5813                                 phba->sli4_hba.max_cfg_param.max_vfi,
5814                                 phba->sli4_hba.max_cfg_param.rpi_base,
5815                                 phba->sli4_hba.max_cfg_param.max_rpi,
5816                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5817                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5818         }
5819         mempool_free(pmb, phba->mbox_mem_pool);
5820
5821         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5822         if (phba->cfg_hba_queue_depth >
5823                 (phba->sli4_hba.max_cfg_param.max_xri -
5824                         lpfc_sli4_get_els_iocb_cnt(phba)))
5825                 phba->cfg_hba_queue_depth =
5826                         phba->sli4_hba.max_cfg_param.max_xri -
5827                                 lpfc_sli4_get_els_iocb_cnt(phba);
5828         return rc;
5829 }
5830
5831 /**
5832  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
5833  * @phba: pointer to lpfc hba data structure.
5834  *
5835  * This routine is invoked to setup the port-side endian order when
5836  * the port if_type is 0.  This routine has no function for other
5837  * if_types.
5838  *
5839  * Return codes
5840  *      0 - successful
5841  *      -ENOMEM - No available memory
5842  *      -EIO - The mailbox failed to complete successfully.
5843  **/
5844 static int
5845 lpfc_setup_endian_order(struct lpfc_hba *phba)
5846 {
5847         LPFC_MBOXQ_t *mboxq;
5848         uint32_t if_type, rc = 0;
5849         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5850                                       HOST_ENDIAN_HIGH_WORD1};
5851
5852         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
5853         switch (if_type) {
5854         case LPFC_SLI_INTF_IF_TYPE_0:
5855                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5856                                                        GFP_KERNEL);
5857                 if (!mboxq) {
5858                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5859                                         "0492 Unable to allocate memory for "
5860                                         "issuing SLI_CONFIG_SPECIAL mailbox "
5861                                         "command\n");
5862                         return -ENOMEM;
5863                 }
5864
5865                 /*
5866                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5867                  * two words to contain special data values and no other data.
5868                  */
5869                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5870                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5871                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5872                 if (rc != MBX_SUCCESS) {
5873                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5874                                         "0493 SLI_CONFIG_SPECIAL mailbox "
5875                                         "failed with status x%x\n",
5876                                         rc);
5877                         rc = -EIO;
5878                 }
5879                 mempool_free(mboxq, phba->mbox_mem_pool);
5880                 break;
5881         case LPFC_SLI_INTF_IF_TYPE_2:
5882         case LPFC_SLI_INTF_IF_TYPE_1:
5883         default:
5884                 break;
5885         }
5886         return rc;
5887 }
5888
5889 /**
5890  * lpfc_sli4_queue_create - Create all the SLI4 queues
5891  * @phba: pointer to lpfc hba data structure.
5892  *
5893  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5894  * operation. For each SLI4 queue type, the parameters such as queue entry
5895  * count (queue depth) shall be taken from the module parameter. For now,
5896  * we just use some constant number as place holder.
5897  *
5898  * Return codes
5899  *      0 - successful
5900  *      -ENOMEM - No available memory
5901  *      -EIO - The mailbox failed to complete successfully.
5902  **/
5903 static int
5904 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5905 {
5906         struct lpfc_queue *qdesc;
5907         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5908         int cfg_fcp_wq_count;
5909         int cfg_fcp_eq_count;
5910
5911         /*
5912          * Sanity check for confiugred queue parameters against the run-time
5913          * device parameters
5914          */
5915
5916         /* Sanity check on FCP fast-path WQ parameters */
5917         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5918         if (cfg_fcp_wq_count >
5919             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5920                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5921                                    LPFC_SP_WQN_DEF;
5922                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5923                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5924                                         "2581 Not enough WQs (%d) from "
5925                                         "the pci function for supporting "
5926                                         "FCP WQs (%d)\n",
5927                                         phba->sli4_hba.max_cfg_param.max_wq,
5928                                         phba->cfg_fcp_wq_count);
5929                         goto out_error;
5930                 }
5931                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5932                                 "2582 Not enough WQs (%d) from the pci "
5933                                 "function for supporting the requested "
5934                                 "FCP WQs (%d), the actual FCP WQs can "
5935                                 "be supported: %d\n",
5936                                 phba->sli4_hba.max_cfg_param.max_wq,
5937                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5938         }
5939         /* The actual number of FCP work queues adopted */
5940         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5941
5942         /* Sanity check on FCP fast-path EQ parameters */
5943         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5944         if (cfg_fcp_eq_count >
5945             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5946                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5947                                    LPFC_SP_EQN_DEF;
5948                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5949                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5950                                         "2574 Not enough EQs (%d) from the "
5951                                         "pci function for supporting FCP "
5952                                         "EQs (%d)\n",
5953                                         phba->sli4_hba.max_cfg_param.max_eq,
5954                                         phba->cfg_fcp_eq_count);
5955                         goto out_error;
5956                 }
5957                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5958                                 "2575 Not enough EQs (%d) from the pci "
5959                                 "function for supporting the requested "
5960                                 "FCP EQs (%d), the actual FCP EQs can "
5961                                 "be supported: %d\n",
5962                                 phba->sli4_hba.max_cfg_param.max_eq,
5963                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5964         }
5965         /* It does not make sense to have more EQs than WQs */
5966         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5967                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5968                                 "2593 The FCP EQ count(%d) cannot be greater "
5969                                 "than the FCP WQ count(%d), limiting the "
5970                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5971                                 phba->cfg_fcp_wq_count,
5972                                 phba->cfg_fcp_wq_count);
5973                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5974         }
5975         /* The actual number of FCP event queues adopted */
5976         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5977         /* The overall number of event queues used */
5978         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5979
5980         /*
5981          * Create Event Queues (EQs)
5982          */
5983
5984         /* Get EQ depth from module parameter, fake the default for now */
5985         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5986         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5987
5988         /* Create slow path event queue */
5989         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5990                                       phba->sli4_hba.eq_ecount);
5991         if (!qdesc) {
5992                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5993                                 "0496 Failed allocate slow-path EQ\n");
5994                 goto out_error;
5995         }
5996         phba->sli4_hba.sp_eq = qdesc;
5997
5998         /* Create fast-path FCP Event Queue(s) */
5999         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6000                                phba->cfg_fcp_eq_count), GFP_KERNEL);
6001         if (!phba->sli4_hba.fp_eq) {
6002                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6003                                 "2576 Failed allocate memory for fast-path "
6004                                 "EQ record array\n");
6005                 goto out_free_sp_eq;
6006         }
6007         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6008                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6009                                               phba->sli4_hba.eq_ecount);
6010                 if (!qdesc) {
6011                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6012                                         "0497 Failed allocate fast-path EQ\n");
6013                         goto out_free_fp_eq;
6014                 }
6015                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6016         }
6017
6018         /*
6019          * Create Complete Queues (CQs)
6020          */
6021
6022         /* Get CQ depth from module parameter, fake the default for now */
6023         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6024         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6025
6026         /* Create slow-path Mailbox Command Complete Queue */
6027         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6028                                       phba->sli4_hba.cq_ecount);
6029         if (!qdesc) {
6030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6031                                 "0500 Failed allocate slow-path mailbox CQ\n");
6032                 goto out_free_fp_eq;
6033         }
6034         phba->sli4_hba.mbx_cq = qdesc;
6035
6036         /* Create slow-path ELS Complete Queue */
6037         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6038                                       phba->sli4_hba.cq_ecount);
6039         if (!qdesc) {
6040                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6041                                 "0501 Failed allocate slow-path ELS CQ\n");
6042                 goto out_free_mbx_cq;
6043         }
6044         phba->sli4_hba.els_cq = qdesc;
6045
6046
6047         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6048         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6049                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
6050         if (!phba->sli4_hba.fcp_cq) {
6051                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6052                                 "2577 Failed allocate memory for fast-path "
6053                                 "CQ record array\n");
6054                 goto out_free_els_cq;
6055         }
6056         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6057                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6058                                               phba->sli4_hba.cq_ecount);
6059                 if (!qdesc) {
6060                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6061                                         "0499 Failed allocate fast-path FCP "
6062                                         "CQ (%d)\n", fcp_cqidx);
6063                         goto out_free_fcp_cq;
6064                 }
6065                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6066         }
6067
6068         /* Create Mailbox Command Queue */
6069         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6070         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6071
6072         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6073                                       phba->sli4_hba.mq_ecount);
6074         if (!qdesc) {
6075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6076                                 "0505 Failed allocate slow-path MQ\n");
6077                 goto out_free_fcp_cq;
6078         }
6079         phba->sli4_hba.mbx_wq = qdesc;
6080
6081         /*
6082          * Create all the Work Queues (WQs)
6083          */
6084         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6085         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6086
6087         /* Create slow-path ELS Work Queue */
6088         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6089                                       phba->sli4_hba.wq_ecount);
6090         if (!qdesc) {
6091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6092                                 "0504 Failed allocate slow-path ELS WQ\n");
6093                 goto out_free_mbx_wq;
6094         }
6095         phba->sli4_hba.els_wq = qdesc;
6096
6097         /* Create fast-path FCP Work Queue(s) */
6098         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6099                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6100         if (!phba->sli4_hba.fcp_wq) {
6101                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6102                                 "2578 Failed allocate memory for fast-path "
6103                                 "WQ record array\n");
6104                 goto out_free_els_wq;
6105         }
6106         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6107                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6108                                               phba->sli4_hba.wq_ecount);
6109                 if (!qdesc) {
6110                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6111                                         "0503 Failed allocate fast-path FCP "
6112                                         "WQ (%d)\n", fcp_wqidx);
6113                         goto out_free_fcp_wq;
6114                 }
6115                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6116         }
6117
6118         /*
6119          * Create Receive Queue (RQ)
6120          */
6121         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6122         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6123
6124         /* Create Receive Queue for header */
6125         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6126                                       phba->sli4_hba.rq_ecount);
6127         if (!qdesc) {
6128                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129                                 "0506 Failed allocate receive HRQ\n");
6130                 goto out_free_fcp_wq;
6131         }
6132         phba->sli4_hba.hdr_rq = qdesc;
6133
6134         /* Create Receive Queue for data */
6135         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6136                                       phba->sli4_hba.rq_ecount);
6137         if (!qdesc) {
6138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6139                                 "0507 Failed allocate receive DRQ\n");
6140                 goto out_free_hdr_rq;
6141         }
6142         phba->sli4_hba.dat_rq = qdesc;
6143
6144         return 0;
6145
6146 out_free_hdr_rq:
6147         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6148         phba->sli4_hba.hdr_rq = NULL;
6149 out_free_fcp_wq:
6150         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6151                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6152                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6153         }
6154         kfree(phba->sli4_hba.fcp_wq);
6155 out_free_els_wq:
6156         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6157         phba->sli4_hba.els_wq = NULL;
6158 out_free_mbx_wq:
6159         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6160         phba->sli4_hba.mbx_wq = NULL;
6161 out_free_fcp_cq:
6162         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6163                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6164                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6165         }
6166         kfree(phba->sli4_hba.fcp_cq);
6167 out_free_els_cq:
6168         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6169         phba->sli4_hba.els_cq = NULL;
6170 out_free_mbx_cq:
6171         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6172         phba->sli4_hba.mbx_cq = NULL;
6173 out_free_fp_eq:
6174         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6175                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6176                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6177         }
6178         kfree(phba->sli4_hba.fp_eq);
6179 out_free_sp_eq:
6180         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6181         phba->sli4_hba.sp_eq = NULL;
6182 out_error:
6183         return -ENOMEM;
6184 }
6185
6186 /**
6187  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6188  * @phba: pointer to lpfc hba data structure.
6189  *
6190  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6191  * operation.
6192  *
6193  * Return codes
6194  *      0 - successful
6195  *      -ENOMEM - No available memory
6196  *      -EIO - The mailbox failed to complete successfully.
6197  **/
6198 static void
6199 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6200 {
6201         int fcp_qidx;
6202
6203         /* Release mailbox command work queue */
6204         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6205         phba->sli4_hba.mbx_wq = NULL;
6206
6207         /* Release ELS work queue */
6208         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6209         phba->sli4_hba.els_wq = NULL;
6210
6211         /* Release FCP work queue */
6212         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6213                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6214         kfree(phba->sli4_hba.fcp_wq);
6215         phba->sli4_hba.fcp_wq = NULL;
6216
6217         /* Release unsolicited receive queue */
6218         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6219         phba->sli4_hba.hdr_rq = NULL;
6220         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6221         phba->sli4_hba.dat_rq = NULL;
6222
6223         /* Release ELS complete queue */
6224         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6225         phba->sli4_hba.els_cq = NULL;
6226
6227         /* Release mailbox command complete queue */
6228         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6229         phba->sli4_hba.mbx_cq = NULL;
6230
6231         /* Release FCP response complete queue */
6232         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6233                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6234         kfree(phba->sli4_hba.fcp_cq);
6235         phba->sli4_hba.fcp_cq = NULL;
6236
6237         /* Release fast-path event queue */
6238         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6239                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6240         kfree(phba->sli4_hba.fp_eq);
6241         phba->sli4_hba.fp_eq = NULL;
6242
6243         /* Release slow-path event queue */
6244         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6245         phba->sli4_hba.sp_eq = NULL;
6246
6247         return;
6248 }
6249
6250 /**
6251  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6252  * @phba: pointer to lpfc hba data structure.
6253  *
6254  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6255  * operation.
6256  *
6257  * Return codes
6258  *      0 - successful
6259  *      -ENOMEM - No available memory
6260  *      -EIO - The mailbox failed to complete successfully.
6261  **/
6262 int
6263 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6264 {
6265         int rc = -ENOMEM;
6266         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6267         int fcp_cq_index = 0;
6268
6269         /*
6270          * Set up Event Queues (EQs)
6271          */
6272
6273         /* Set up slow-path event queue */
6274         if (!phba->sli4_hba.sp_eq) {
6275                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6276                                 "0520 Slow-path EQ not allocated\n");
6277                 goto out_error;
6278         }
6279         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6280                             LPFC_SP_DEF_IMAX);
6281         if (rc) {
6282                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6283                                 "0521 Failed setup of slow-path EQ: "
6284                                 "rc = 0x%x\n", rc);
6285                 goto out_error;
6286         }
6287         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6288                         "2583 Slow-path EQ setup: queue-id=%d\n",
6289                         phba->sli4_hba.sp_eq->queue_id);
6290
6291         /* Set up fast-path event queue */
6292         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6293                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6294                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6295                                         "0522 Fast-path EQ (%d) not "
6296                                         "allocated\n", fcp_eqidx);
6297                         goto out_destroy_fp_eq;
6298                 }
6299                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6300                                     phba->cfg_fcp_imax);
6301                 if (rc) {
6302                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6303                                         "0523 Failed setup of fast-path EQ "
6304                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6305                         goto out_destroy_fp_eq;
6306                 }
6307                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6308                                 "2584 Fast-path EQ setup: "
6309                                 "queue[%d]-id=%d\n", fcp_eqidx,
6310                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6311         }
6312
6313         /*
6314          * Set up Complete Queues (CQs)
6315          */
6316
6317         /* Set up slow-path MBOX Complete Queue as the first CQ */
6318         if (!phba->sli4_hba.mbx_cq) {
6319                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6320                                 "0528 Mailbox CQ not allocated\n");
6321                 goto out_destroy_fp_eq;
6322         }
6323         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6324                             LPFC_MCQ, LPFC_MBOX);
6325         if (rc) {
6326                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6327                                 "0529 Failed setup of slow-path mailbox CQ: "
6328                                 "rc = 0x%x\n", rc);
6329                 goto out_destroy_fp_eq;
6330         }
6331         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6332                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6333                         phba->sli4_hba.mbx_cq->queue_id,
6334                         phba->sli4_hba.sp_eq->queue_id);
6335
6336         /* Set up slow-path ELS Complete Queue */
6337         if (!phba->sli4_hba.els_cq) {
6338                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6339                                 "0530 ELS CQ not allocated\n");
6340                 goto out_destroy_mbx_cq;
6341         }
6342         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6343                             LPFC_WCQ, LPFC_ELS);
6344         if (rc) {
6345                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6346                                 "0531 Failed setup of slow-path ELS CQ: "
6347                                 "rc = 0x%x\n", rc);
6348                 goto out_destroy_mbx_cq;
6349         }
6350         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6351                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6352                         phba->sli4_hba.els_cq->queue_id,
6353                         phba->sli4_hba.sp_eq->queue_id);
6354
6355         /* Set up fast-path FCP Response Complete Queue */
6356         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6357                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6358                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6359                                         "0526 Fast-path FCP CQ (%d) not "
6360                                         "allocated\n", fcp_cqidx);
6361                         goto out_destroy_fcp_cq;
6362                 }
6363                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6364                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6365                                     LPFC_WCQ, LPFC_FCP);
6366                 if (rc) {
6367                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6368                                         "0527 Failed setup of fast-path FCP "
6369                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6370                         goto out_destroy_fcp_cq;
6371                 }
6372                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6373                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6374                                 "parent eq[%d]-id=%d\n",
6375                                 fcp_cqidx,
6376                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6377                                 fcp_cqidx,
6378                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6379         }
6380
6381         /*
6382          * Set up all the Work Queues (WQs)
6383          */
6384
6385         /* Set up Mailbox Command Queue */
6386         if (!phba->sli4_hba.mbx_wq) {
6387                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6388                                 "0538 Slow-path MQ not allocated\n");
6389                 goto out_destroy_fcp_cq;
6390         }
6391         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6392                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6393         if (rc) {
6394                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6395                                 "0539 Failed setup of slow-path MQ: "
6396                                 "rc = 0x%x\n", rc);
6397                 goto out_destroy_fcp_cq;
6398         }
6399         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6400                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6401                         phba->sli4_hba.mbx_wq->queue_id,
6402                         phba->sli4_hba.mbx_cq->queue_id);
6403
6404         /* Set up slow-path ELS Work Queue */
6405         if (!phba->sli4_hba.els_wq) {
6406                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6407                                 "0536 Slow-path ELS WQ not allocated\n");
6408                 goto out_destroy_mbx_wq;
6409         }
6410         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6411                             phba->sli4_hba.els_cq, LPFC_ELS);
6412         if (rc) {
6413                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6414                                 "0537 Failed setup of slow-path ELS WQ: "
6415                                 "rc = 0x%x\n", rc);
6416                 goto out_destroy_mbx_wq;
6417         }
6418         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6419                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6420                         phba->sli4_hba.els_wq->queue_id,
6421                         phba->sli4_hba.els_cq->queue_id);
6422
6423         /* Set up fast-path FCP Work Queue */
6424         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6425                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6426                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6427                                         "0534 Fast-path FCP WQ (%d) not "
6428                                         "allocated\n", fcp_wqidx);
6429                         goto out_destroy_fcp_wq;
6430                 }
6431                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6432                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6433                                     LPFC_FCP);
6434                 if (rc) {
6435                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6436                                         "0535 Failed setup of fast-path FCP "
6437                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6438                         goto out_destroy_fcp_wq;
6439                 }
6440                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6441                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6442                                 "parent cq[%d]-id=%d\n",
6443                                 fcp_wqidx,
6444                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6445                                 fcp_cq_index,
6446                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6447                 /* Round robin FCP Work Queue's Completion Queue assignment */
6448                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6449         }
6450
6451         /*
6452          * Create Receive Queue (RQ)
6453          */
6454         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6456                                 "0540 Receive Queue not allocated\n");
6457                 goto out_destroy_fcp_wq;
6458         }
6459         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6460                             phba->sli4_hba.els_cq, LPFC_USOL);
6461         if (rc) {
6462                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6463                                 "0541 Failed setup of Receive Queue: "
6464                                 "rc = 0x%x\n", rc);
6465                 goto out_destroy_fcp_wq;
6466         }
6467         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6468                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6469                         "parent cq-id=%d\n",
6470                         phba->sli4_hba.hdr_rq->queue_id,
6471                         phba->sli4_hba.dat_rq->queue_id,
6472                         phba->sli4_hba.els_cq->queue_id);
6473         return 0;
6474
6475 out_destroy_fcp_wq:
6476         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6477                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6478         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6479 out_destroy_mbx_wq:
6480         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6481 out_destroy_fcp_cq:
6482         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6483                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6484         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6485 out_destroy_mbx_cq:
6486         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6487 out_destroy_fp_eq:
6488         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6489                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6490         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6491 out_error:
6492         return rc;
6493 }
6494
6495 /**
6496  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6497  * @phba: pointer to lpfc hba data structure.
6498  *
6499  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6500  * operation.
6501  *
6502  * Return codes
6503  *      0 - successful
6504  *      -ENOMEM - No available memory
6505  *      -EIO - The mailbox failed to complete successfully.
6506  **/
6507 void
6508 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6509 {
6510         int fcp_qidx;
6511
6512         /* Unset mailbox command work queue */
6513         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6514         /* Unset ELS work queue */
6515         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6516         /* Unset unsolicited receive queue */
6517         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6518         /* Unset FCP work queue */
6519         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6520                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6521         /* Unset mailbox command complete queue */
6522         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6523         /* Unset ELS complete queue */
6524         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6525         /* Unset FCP response complete queue */
6526         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6527                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6528         /* Unset fast-path event queue */
6529         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6530                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6531         /* Unset slow-path event queue */
6532         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6533 }
6534
6535 /**
6536  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6537  * @phba: pointer to lpfc hba data structure.
6538  *
6539  * This routine is invoked to allocate and set up a pool of completion queue
6540  * events. The body of the completion queue event is a completion queue entry
6541  * CQE. For now, this pool is used for the interrupt service routine to queue
6542  * the following HBA completion queue events for the worker thread to process:
6543  *   - Mailbox asynchronous events
6544  *   - Receive queue completion unsolicited events
6545  * Later, this can be used for all the slow-path events.
6546  *
6547  * Return codes
6548  *      0 - successful
6549  *      -ENOMEM - No available memory
6550  **/
6551 static int
6552 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6553 {
6554         struct lpfc_cq_event *cq_event;
6555         int i;
6556
6557         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6558                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6559                 if (!cq_event)
6560                         goto out_pool_create_fail;
6561                 list_add_tail(&cq_event->list,
6562                               &phba->sli4_hba.sp_cqe_event_pool);
6563         }
6564         return 0;
6565
6566 out_pool_create_fail:
6567         lpfc_sli4_cq_event_pool_destroy(phba);
6568         return -ENOMEM;
6569 }
6570
6571 /**
6572  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6573  * @phba: pointer to lpfc hba data structure.
6574  *
6575  * This routine is invoked to free the pool of completion queue events at
6576  * driver unload time. Note that, it is the responsibility of the driver
6577  * cleanup routine to free all the outstanding completion-queue events
6578  * allocated from this pool back into the pool before invoking this routine
6579  * to destroy the pool.
6580  **/
6581 static void
6582 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6583 {
6584         struct lpfc_cq_event *cq_event, *next_cq_event;
6585
6586         list_for_each_entry_safe(cq_event, next_cq_event,
6587                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6588                 list_del(&cq_event->list);
6589                 kfree(cq_event);
6590         }
6591 }
6592
6593 /**
6594  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6595  * @phba: pointer to lpfc hba data structure.
6596  *
6597  * This routine is the lock free version of the API invoked to allocate a
6598  * completion-queue event from the free pool.
6599  *
6600  * Return: Pointer to the newly allocated completion-queue event if successful
6601  *         NULL otherwise.
6602  **/
6603 struct lpfc_cq_event *
6604 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6605 {
6606         struct lpfc_cq_event *cq_event = NULL;
6607
6608         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6609                          struct lpfc_cq_event, list);
6610         return cq_event;
6611 }
6612
6613 /**
6614  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6615  * @phba: pointer to lpfc hba data structure.
6616  *
6617  * This routine is the lock version of the API invoked to allocate a
6618  * completion-queue event from the free pool.
6619  *
6620  * Return: Pointer to the newly allocated completion-queue event if successful
6621  *         NULL otherwise.
6622  **/
6623 struct lpfc_cq_event *
6624 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6625 {
6626         struct lpfc_cq_event *cq_event;
6627         unsigned long iflags;
6628
6629         spin_lock_irqsave(&phba->hbalock, iflags);
6630         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6631         spin_unlock_irqrestore(&phba->hbalock, iflags);
6632         return cq_event;
6633 }
6634
6635 /**
6636  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6637  * @phba: pointer to lpfc hba data structure.
6638  * @cq_event: pointer to the completion queue event to be freed.
6639  *
6640  * This routine is the lock free version of the API invoked to release a
6641  * completion-queue event back into the free pool.
6642  **/
6643 void
6644 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6645                              struct lpfc_cq_event *cq_event)
6646 {
6647         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6648 }
6649
6650 /**
6651  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6652  * @phba: pointer to lpfc hba data structure.
6653  * @cq_event: pointer to the completion queue event to be freed.
6654  *
6655  * This routine is the lock version of the API invoked to release a
6656  * completion-queue event back into the free pool.
6657  **/
6658 void
6659 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6660                            struct lpfc_cq_event *cq_event)
6661 {
6662         unsigned long iflags;
6663         spin_lock_irqsave(&phba->hbalock, iflags);
6664         __lpfc_sli4_cq_event_release(phba, cq_event);
6665         spin_unlock_irqrestore(&phba->hbalock, iflags);
6666 }
6667
6668 /**
6669  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6670  * @phba: pointer to lpfc hba data structure.
6671  *
6672  * This routine is to free all the pending completion-queue events to the
6673  * back into the free pool for device reset.
6674  **/
6675 static void
6676 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6677 {
6678         LIST_HEAD(cqelist);
6679         struct lpfc_cq_event *cqe;
6680         unsigned long iflags;
6681
6682         /* Retrieve all the pending WCQEs from pending WCQE lists */
6683         spin_lock_irqsave(&phba->hbalock, iflags);
6684         /* Pending FCP XRI abort events */
6685         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6686                          &cqelist);
6687         /* Pending ELS XRI abort events */
6688         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6689                          &cqelist);
6690         /* Pending asynnc events */
6691         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6692                          &cqelist);
6693         spin_unlock_irqrestore(&phba->hbalock, iflags);
6694
6695         while (!list_empty(&cqelist)) {
6696                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6697                 lpfc_sli4_cq_event_release(phba, cqe);
6698         }
6699 }
6700
6701 /**
6702  * lpfc_pci_function_reset - Reset pci function.
6703  * @phba: pointer to lpfc hba data structure.
6704  *
6705  * This routine is invoked to request a PCI function reset. It will destroys
6706  * all resources assigned to the PCI function which originates this request.
6707  *
6708  * Return codes
6709  *      0 - successful
6710  *      -ENOMEM - No available memory
6711  *      -EIO - The mailbox failed to complete successfully.
6712  **/
6713 int
6714 lpfc_pci_function_reset(struct lpfc_hba *phba)
6715 {
6716         LPFC_MBOXQ_t *mboxq;
6717         uint32_t rc = 0, if_type;
6718         uint32_t shdr_status, shdr_add_status;
6719         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6720         union lpfc_sli4_cfg_shdr *shdr;
6721         struct lpfc_register reg_data;
6722
6723         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6724         switch (if_type) {
6725         case LPFC_SLI_INTF_IF_TYPE_0:
6726                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6727                                                        GFP_KERNEL);
6728                 if (!mboxq) {
6729                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6730                                         "0494 Unable to allocate memory for "
6731                                         "issuing SLI_FUNCTION_RESET mailbox "
6732                                         "command\n");
6733                         return -ENOMEM;
6734                 }
6735
6736                 /* Setup PCI function reset mailbox-ioctl command */
6737                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6738                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6739                                  LPFC_SLI4_MBX_EMBED);
6740                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6741                 shdr = (union lpfc_sli4_cfg_shdr *)
6742                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6743                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6744                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6745                                          &shdr->response);
6746                 if (rc != MBX_TIMEOUT)
6747                         mempool_free(mboxq, phba->mbox_mem_pool);
6748                 if (shdr_status || shdr_add_status || rc) {
6749                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6750                                         "0495 SLI_FUNCTION_RESET mailbox "
6751                                         "failed with status x%x add_status x%x,"
6752                                         " mbx status x%x\n",
6753                                         shdr_status, shdr_add_status, rc);
6754                         rc = -ENXIO;
6755                 }
6756                 break;
6757         case LPFC_SLI_INTF_IF_TYPE_2:
6758                 for (num_resets = 0;
6759                      num_resets < MAX_IF_TYPE_2_RESETS;
6760                      num_resets++) {
6761                         reg_data.word0 = 0;
6762                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
6763                                LPFC_SLIPORT_LITTLE_ENDIAN);
6764                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6765                                LPFC_SLIPORT_INIT_PORT);
6766                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6767                                CTRLregaddr);
6768
6769                         /*
6770                          * Poll the Port Status Register and wait for RDY for
6771                          * up to 10 seconds.  If the port doesn't respond, treat
6772                          * it as an error.  If the port responds with RN, start
6773                          * the loop again.
6774                          */
6775                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
6776                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
6777                                               STATUSregaddr, &reg_data.word0)) {
6778                                         rc = -ENODEV;
6779                                         break;
6780                                 }
6781                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
6782                                         break;
6783                                 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
6784                                         reset_again++;
6785                                         break;
6786                                 }
6787                                 msleep(10);
6788                         }
6789
6790                         /*
6791                          * If the port responds to the init request with
6792                          * reset needed, delay for a bit and restart the loop.
6793                          */
6794                         if (reset_again) {
6795                                 msleep(10);
6796                                 reset_again = 0;
6797                                 continue;
6798                         }
6799
6800                         /* Detect any port errors. */
6801                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6802                                  &reg_data.word0)) {
6803                                 rc = -ENODEV;
6804                                 break;
6805                         }
6806                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
6807                             (rdy_chk >= 1000)) {
6808                                 phba->work_status[0] = readl(
6809                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
6810                                 phba->work_status[1] = readl(
6811                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
6812                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6813                                         "2890 Port Error Detected "
6814                                         "during Port Reset: "
6815                                         "port status reg 0x%x, "
6816                                         "error 1=0x%x, error 2=0x%x\n",
6817                                         reg_data.word0,
6818                                         phba->work_status[0],
6819                                         phba->work_status[1]);
6820                                 rc = -ENODEV;
6821                         }
6822
6823                         /*
6824                          * Terminate the outer loop provided the Port indicated
6825                          * ready within 10 seconds.
6826                          */
6827                         if (rdy_chk < 1000)
6828                                 break;
6829                 }
6830                 break;
6831         case LPFC_SLI_INTF_IF_TYPE_1:
6832         default:
6833                 break;
6834         }
6835
6836         /* Catch the not-ready port failure after a port reset. */
6837         if (num_resets >= MAX_IF_TYPE_2_RESETS)
6838                 rc = -ENODEV;
6839
6840         return rc;
6841 }
6842
6843 /**
6844  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6845  * @phba: pointer to lpfc hba data structure.
6846  * @cnt: number of nop mailbox commands to send.
6847  *
6848  * This routine is invoked to send a number @cnt of NOP mailbox command and
6849  * wait for each command to complete.
6850  *
6851  * Return: the number of NOP mailbox command completed.
6852  **/
6853 static int
6854 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6855 {
6856         LPFC_MBOXQ_t *mboxq;
6857         int length, cmdsent;
6858         uint32_t mbox_tmo;
6859         uint32_t rc = 0;
6860         uint32_t shdr_status, shdr_add_status;
6861         union lpfc_sli4_cfg_shdr *shdr;
6862
6863         if (cnt == 0) {
6864                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6865                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6866                 return cnt;
6867         }
6868
6869         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6870         if (!mboxq) {
6871                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6872                                 "2519 Unable to allocate memory for issuing "
6873                                 "NOP mailbox command\n");
6874                 return 0;
6875         }
6876
6877         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6878         length = (sizeof(struct lpfc_mbx_nop) -
6879                   sizeof(struct lpfc_sli4_cfg_mhdr));
6880         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6881                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6882
6883         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6884         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6885                 if (!phba->sli4_hba.intr_enable)
6886                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6887                 else
6888                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6889                 if (rc == MBX_TIMEOUT)
6890                         break;
6891                 /* Check return status */
6892                 shdr = (union lpfc_sli4_cfg_shdr *)
6893                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6894                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6895                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6896                                          &shdr->response);
6897                 if (shdr_status || shdr_add_status || rc) {
6898                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6899                                         "2520 NOP mailbox command failed "
6900                                         "status x%x add_status x%x mbx "
6901                                         "status x%x\n", shdr_status,
6902                                         shdr_add_status, rc);
6903                         break;
6904                 }
6905         }
6906
6907         if (rc != MBX_TIMEOUT)
6908                 mempool_free(mboxq, phba->mbox_mem_pool);
6909
6910         return cmdsent;
6911 }
6912
6913 /**
6914  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6915  * @phba: pointer to lpfc hba data structure.
6916  *
6917  * This routine is invoked to set up the PCI device memory space for device
6918  * with SLI-4 interface spec.
6919  *
6920  * Return codes
6921  *      0 - successful
6922  *      other values - error
6923  **/
6924 static int
6925 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6926 {
6927         struct pci_dev *pdev;
6928         unsigned long bar0map_len, bar1map_len, bar2map_len;
6929         int error = -ENODEV;
6930         uint32_t if_type;
6931
6932         /* Obtain PCI device reference */
6933         if (!phba->pcidev)
6934                 return error;
6935         else
6936                 pdev = phba->pcidev;
6937
6938         /* Set the device DMA mask size */
6939         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6940          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6941                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6942                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6943                         return error;
6944                 }
6945         }
6946
6947         /*
6948          * The BARs and register set definitions and offset locations are
6949          * dependent on the if_type.
6950          */
6951         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
6952                                   &phba->sli4_hba.sli_intf.word0)) {
6953                 return error;
6954         }
6955
6956         /* There is no SLI3 failback for SLI4 devices. */
6957         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
6958             LPFC_SLI_INTF_VALID) {
6959                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6960                                 "2894 SLI_INTF reg contents invalid "
6961                                 "sli_intf reg 0x%x\n",
6962                                 phba->sli4_hba.sli_intf.word0);
6963                 return error;
6964         }
6965
6966         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6967         /*
6968          * Get the bus address of SLI4 device Bar regions and the
6969          * number of bytes required by each mapping. The mapping of the
6970          * particular PCI BARs regions is dependent on the type of
6971          * SLI4 device.
6972          */
6973         if (pci_resource_start(pdev, 0)) {
6974                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6975                 bar0map_len = pci_resource_len(pdev, 0);
6976
6977                 /*
6978                  * Map SLI4 PCI Config Space Register base to a kernel virtual
6979                  * addr
6980                  */
6981                 phba->sli4_hba.conf_regs_memmap_p =
6982                         ioremap(phba->pci_bar0_map, bar0map_len);
6983                 if (!phba->sli4_hba.conf_regs_memmap_p) {
6984                         dev_printk(KERN_ERR, &pdev->dev,
6985                                    "ioremap failed for SLI4 PCI config "
6986                                    "registers.\n");
6987                         goto out;
6988                 }
6989                 /* Set up BAR0 PCI config space register memory map */
6990                 lpfc_sli4_bar0_register_memmap(phba, if_type);
6991         } else {
6992                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6993                 bar0map_len = pci_resource_len(pdev, 1);
6994                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
6995                         dev_printk(KERN_ERR, &pdev->dev,
6996                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
6997                         goto out;
6998                 }
6999                 phba->sli4_hba.conf_regs_memmap_p =
7000                                 ioremap(phba->pci_bar0_map, bar0map_len);
7001                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7002                         dev_printk(KERN_ERR, &pdev->dev,
7003                                 "ioremap failed for SLI4 PCI config "
7004                                 "registers.\n");
7005                                 goto out;
7006                 }
7007                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7008         }
7009
7010         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7011             (pci_resource_start(pdev, 2))) {
7012                 /*
7013                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7014                  * virtual address and setup the registers.
7015                  */
7016                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7017                 bar1map_len = pci_resource_len(pdev, 2);
7018                 phba->sli4_hba.ctrl_regs_memmap_p =
7019                                 ioremap(phba->pci_bar1_map, bar1map_len);
7020                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7021                         dev_printk(KERN_ERR, &pdev->dev,
7022                            "ioremap failed for SLI4 HBA control registers.\n");
7023                         goto out_iounmap_conf;
7024                 }
7025                 lpfc_sli4_bar1_register_memmap(phba);
7026         }
7027
7028         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7029             (pci_resource_start(pdev, 4))) {
7030                 /*
7031                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7032                  * virtual address and setup the registers.
7033                  */
7034                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7035                 bar2map_len = pci_resource_len(pdev, 4);
7036                 phba->sli4_hba.drbl_regs_memmap_p =
7037                                 ioremap(phba->pci_bar2_map, bar2map_len);
7038                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7039                         dev_printk(KERN_ERR, &pdev->dev,
7040                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7041                         goto out_iounmap_ctrl;
7042                 }
7043                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7044                 if (error)
7045                         goto out_iounmap_all;
7046         }
7047
7048         return 0;
7049
7050 out_iounmap_all:
7051         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7052 out_iounmap_ctrl:
7053         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7054 out_iounmap_conf:
7055         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7056 out:
7057         return error;
7058 }
7059
7060 /**
7061  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7062  * @phba: pointer to lpfc hba data structure.
7063  *
7064  * This routine is invoked to unset the PCI device memory space for device
7065  * with SLI-4 interface spec.
7066  **/
7067 static void
7068 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7069 {
7070         struct pci_dev *pdev;
7071
7072         /* Obtain PCI device reference */
7073         if (!phba->pcidev)
7074                 return;
7075         else
7076                 pdev = phba->pcidev;
7077
7078         /* Free coherent DMA memory allocated */
7079
7080         /* Unmap I/O memory space */
7081         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7082         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7083         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7084
7085         return;
7086 }
7087
7088 /**
7089  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7090  * @phba: pointer to lpfc hba data structure.
7091  *
7092  * This routine is invoked to enable the MSI-X interrupt vectors to device
7093  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7094  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7095  * invoked, enables either all or nothing, depending on the current
7096  * availability of PCI vector resources. The device driver is responsible
7097  * for calling the individual request_irq() to register each MSI-X vector
7098  * with a interrupt handler, which is done in this function. Note that
7099  * later when device is unloading, the driver should always call free_irq()
7100  * on all MSI-X vectors it has done request_irq() on before calling
7101  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7102  * will be left with MSI-X enabled and leaks its vectors.
7103  *
7104  * Return codes
7105  *   0 - successful
7106  *   other values - error
7107  **/
7108 static int
7109 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7110 {
7111         int rc, i;
7112         LPFC_MBOXQ_t *pmb;
7113
7114         /* Set up MSI-X multi-message vectors */
7115         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7116                 phba->msix_entries[i].entry = i;
7117
7118         /* Configure MSI-X capability structure */
7119         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7120                                 ARRAY_SIZE(phba->msix_entries));
7121         if (rc) {
7122                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7123                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7124                 goto msi_fail_out;
7125         }
7126         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7127                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7128                                 "0477 MSI-X entry[%d]: vector=x%x "
7129                                 "message=%d\n", i,
7130                                 phba->msix_entries[i].vector,
7131                                 phba->msix_entries[i].entry);
7132         /*
7133          * Assign MSI-X vectors to interrupt handlers
7134          */
7135
7136         /* vector-0 is associated to slow-path handler */
7137         rc = request_irq(phba->msix_entries[0].vector,
7138                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7139                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7140         if (rc) {
7141                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7142                                 "0421 MSI-X slow-path request_irq failed "
7143                                 "(%d)\n", rc);
7144                 goto msi_fail_out;
7145         }
7146
7147         /* vector-1 is associated to fast-path handler */
7148         rc = request_irq(phba->msix_entries[1].vector,
7149                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7150                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7151
7152         if (rc) {
7153                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7154                                 "0429 MSI-X fast-path request_irq failed "
7155                                 "(%d)\n", rc);
7156                 goto irq_fail_out;
7157         }
7158
7159         /*
7160          * Configure HBA MSI-X attention conditions to messages
7161          */
7162         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7163
7164         if (!pmb) {
7165                 rc = -ENOMEM;
7166                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7167                                 "0474 Unable to allocate memory for issuing "
7168                                 "MBOX_CONFIG_MSI command\n");
7169                 goto mem_fail_out;
7170         }
7171         rc = lpfc_config_msi(phba, pmb);
7172         if (rc)
7173                 goto mbx_fail_out;
7174         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7175         if (rc != MBX_SUCCESS) {
7176                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7177                                 "0351 Config MSI mailbox command failed, "
7178                                 "mbxCmd x%x, mbxStatus x%x\n",
7179                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7180                 goto mbx_fail_out;
7181         }
7182
7183         /* Free memory allocated for mailbox command */
7184         mempool_free(pmb, phba->mbox_mem_pool);
7185         return rc;
7186
7187 mbx_fail_out:
7188         /* Free memory allocated for mailbox command */
7189         mempool_free(pmb, phba->mbox_mem_pool);
7190
7191 mem_fail_out:
7192         /* free the irq already requested */
7193         free_irq(phba->msix_entries[1].vector, phba);
7194
7195 irq_fail_out:
7196         /* free the irq already requested */
7197         free_irq(phba->msix_entries[0].vector, phba);
7198
7199 msi_fail_out:
7200         /* Unconfigure MSI-X capability structure */
7201         pci_disable_msix(phba->pcidev);
7202         return rc;
7203 }
7204
7205 /**
7206  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7207  * @phba: pointer to lpfc hba data structure.
7208  *
7209  * This routine is invoked to release the MSI-X vectors and then disable the
7210  * MSI-X interrupt mode to device with SLI-3 interface spec.
7211  **/
7212 static void
7213 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7214 {
7215         int i;
7216
7217         /* Free up MSI-X multi-message vectors */
7218         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7219                 free_irq(phba->msix_entries[i].vector, phba);
7220         /* Disable MSI-X */
7221         pci_disable_msix(phba->pcidev);
7222
7223         return;
7224 }
7225
7226 /**
7227  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7228  * @phba: pointer to lpfc hba data structure.
7229  *
7230  * This routine is invoked to enable the MSI interrupt mode to device with
7231  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7232  * enable the MSI vector. The device driver is responsible for calling the
7233  * request_irq() to register MSI vector with a interrupt the handler, which
7234  * is done in this function.
7235  *
7236  * Return codes
7237  *      0 - successful
7238  *      other values - error
7239  */
7240 static int
7241 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7242 {
7243         int rc;
7244
7245         rc = pci_enable_msi(phba->pcidev);
7246         if (!rc)
7247                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7248                                 "0462 PCI enable MSI mode success.\n");
7249         else {
7250                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7251                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7252                 return rc;
7253         }
7254
7255         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7256                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7257         if (rc) {
7258                 pci_disable_msi(phba->pcidev);
7259                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7260                                 "0478 MSI request_irq failed (%d)\n", rc);
7261         }
7262         return rc;
7263 }
7264
7265 /**
7266  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7267  * @phba: pointer to lpfc hba data structure.
7268  *
7269  * This routine is invoked to disable the MSI interrupt mode to device with
7270  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7271  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7272  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7273  * its vector.
7274  */
7275 static void
7276 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7277 {
7278         free_irq(phba->pcidev->irq, phba);
7279         pci_disable_msi(phba->pcidev);
7280         return;
7281 }
7282
7283 /**
7284  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7285  * @phba: pointer to lpfc hba data structure.
7286  *
7287  * This routine is invoked to enable device interrupt and associate driver's
7288  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7289  * spec. Depends on the interrupt mode configured to the driver, the driver
7290  * will try to fallback from the configured interrupt mode to an interrupt
7291  * mode which is supported by the platform, kernel, and device in the order
7292  * of:
7293  * MSI-X -> MSI -> IRQ.
7294  *
7295  * Return codes
7296  *   0 - successful
7297  *   other values - error
7298  **/
7299 static uint32_t
7300 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7301 {
7302         uint32_t intr_mode = LPFC_INTR_ERROR;
7303         int retval;
7304
7305         if (cfg_mode == 2) {
7306                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7307                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7308                 if (!retval) {
7309                         /* Now, try to enable MSI-X interrupt mode */
7310                         retval = lpfc_sli_enable_msix(phba);
7311                         if (!retval) {
7312                                 /* Indicate initialization to MSI-X mode */
7313                                 phba->intr_type = MSIX;
7314                                 intr_mode = 2;
7315                         }
7316                 }
7317         }
7318
7319         /* Fallback to MSI if MSI-X initialization failed */
7320         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7321                 retval = lpfc_sli_enable_msi(phba);
7322                 if (!retval) {
7323                         /* Indicate initialization to MSI mode */
7324                         phba->intr_type = MSI;
7325                         intr_mode = 1;
7326                 }
7327         }
7328
7329         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7330         if (phba->intr_type == NONE) {
7331                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7332                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7333                 if (!retval) {
7334                         /* Indicate initialization to INTx mode */
7335                         phba->intr_type = INTx;
7336                         intr_mode = 0;
7337                 }
7338         }
7339         return intr_mode;
7340 }
7341
7342 /**
7343  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7344  * @phba: pointer to lpfc hba data structure.
7345  *
7346  * This routine is invoked to disable device interrupt and disassociate the
7347  * driver's interrupt handler(s) from interrupt vector(s) to device with
7348  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7349  * release the interrupt vector(s) for the message signaled interrupt.
7350  **/
7351 static void
7352 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7353 {
7354         /* Disable the currently initialized interrupt mode */
7355         if (phba->intr_type == MSIX)
7356                 lpfc_sli_disable_msix(phba);
7357         else if (phba->intr_type == MSI)
7358                 lpfc_sli_disable_msi(phba);
7359         else if (phba->intr_type == INTx)
7360                 free_irq(phba->pcidev->irq, phba);
7361
7362         /* Reset interrupt management states */
7363         phba->intr_type = NONE;
7364         phba->sli.slistat.sli_intr = 0;
7365
7366         return;
7367 }
7368
7369 /**
7370  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7371  * @phba: pointer to lpfc hba data structure.
7372  *
7373  * This routine is invoked to enable the MSI-X interrupt vectors to device
7374  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7375  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7376  * enables either all or nothing, depending on the current availability of
7377  * PCI vector resources. The device driver is responsible for calling the
7378  * individual request_irq() to register each MSI-X vector with a interrupt
7379  * handler, which is done in this function. Note that later when device is
7380  * unloading, the driver should always call free_irq() on all MSI-X vectors
7381  * it has done request_irq() on before calling pci_disable_msix(). Failure
7382  * to do so results in a BUG_ON() and a device will be left with MSI-X
7383  * enabled and leaks its vectors.
7384  *
7385  * Return codes
7386  * 0 - successful
7387  * other values - error
7388  **/
7389 static int
7390 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7391 {
7392         int vectors, rc, index;
7393
7394         /* Set up MSI-X multi-message vectors */
7395         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7396                 phba->sli4_hba.msix_entries[index].entry = index;
7397
7398         /* Configure MSI-X capability structure */
7399         vectors = phba->sli4_hba.cfg_eqn;
7400 enable_msix_vectors:
7401         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7402                              vectors);
7403         if (rc > 1) {
7404                 vectors = rc;
7405                 goto enable_msix_vectors;
7406         } else if (rc) {
7407                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7408                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7409                 goto msi_fail_out;
7410         }
7411
7412         /* Log MSI-X vector assignment */
7413         for (index = 0; index < vectors; index++)
7414                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7415                                 "0489 MSI-X entry[%d]: vector=x%x "
7416                                 "message=%d\n", index,
7417                                 phba->sli4_hba.msix_entries[index].vector,
7418                                 phba->sli4_hba.msix_entries[index].entry);
7419         /*
7420          * Assign MSI-X vectors to interrupt handlers
7421          */
7422
7423         /* The first vector must associated to slow-path handler for MQ */
7424         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7425                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7426                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7427         if (rc) {
7428                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7429                                 "0485 MSI-X slow-path request_irq failed "
7430                                 "(%d)\n", rc);
7431                 goto msi_fail_out;
7432         }
7433
7434         /* The rest of the vector(s) are associated to fast-path handler(s) */
7435         for (index = 1; index < vectors; index++) {
7436                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7437                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7438                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7439                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7440                                  LPFC_FP_DRIVER_HANDLER_NAME,
7441                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7442                 if (rc) {
7443                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7444                                         "0486 MSI-X fast-path (%d) "
7445                                         "request_irq failed (%d)\n", index, rc);
7446                         goto cfg_fail_out;
7447                 }
7448         }
7449         phba->sli4_hba.msix_vec_nr = vectors;
7450
7451         return rc;
7452
7453 cfg_fail_out:
7454         /* free the irq already requested */
7455         for (--index; index >= 1; index--)
7456                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7457                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7458
7459         /* free the irq already requested */
7460         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7461
7462 msi_fail_out:
7463         /* Unconfigure MSI-X capability structure */
7464         pci_disable_msix(phba->pcidev);
7465         return rc;
7466 }
7467
7468 /**
7469  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7470  * @phba: pointer to lpfc hba data structure.
7471  *
7472  * This routine is invoked to release the MSI-X vectors and then disable the
7473  * MSI-X interrupt mode to device with SLI-4 interface spec.
7474  **/
7475 static void
7476 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7477 {
7478         int index;
7479
7480         /* Free up MSI-X multi-message vectors */
7481         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7482
7483         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7484                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7485                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7486
7487         /* Disable MSI-X */
7488         pci_disable_msix(phba->pcidev);
7489
7490         return;
7491 }
7492
7493 /**
7494  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7495  * @phba: pointer to lpfc hba data structure.
7496  *
7497  * This routine is invoked to enable the MSI interrupt mode to device with
7498  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7499  * to enable the MSI vector. The device driver is responsible for calling
7500  * the request_irq() to register MSI vector with a interrupt the handler,
7501  * which is done in this function.
7502  *
7503  * Return codes
7504  *      0 - successful
7505  *      other values - error
7506  **/
7507 static int
7508 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7509 {
7510         int rc, index;
7511
7512         rc = pci_enable_msi(phba->pcidev);
7513         if (!rc)
7514                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7515                                 "0487 PCI enable MSI mode success.\n");
7516         else {
7517                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7518                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7519                 return rc;
7520         }
7521
7522         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7523                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7524         if (rc) {
7525                 pci_disable_msi(phba->pcidev);
7526                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7527                                 "0490 MSI request_irq failed (%d)\n", rc);
7528                 return rc;
7529         }
7530
7531         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7532                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7533                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7534         }
7535
7536         return 0;
7537 }
7538
7539 /**
7540  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7541  * @phba: pointer to lpfc hba data structure.
7542  *
7543  * This routine is invoked to disable the MSI interrupt mode to device with
7544  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7545  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7546  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7547  * its vector.
7548  **/
7549 static void
7550 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7551 {
7552         free_irq(phba->pcidev->irq, phba);
7553         pci_disable_msi(phba->pcidev);
7554         return;
7555 }
7556
7557 /**
7558  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7559  * @phba: pointer to lpfc hba data structure.
7560  *
7561  * This routine is invoked to enable device interrupt and associate driver's
7562  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7563  * interface spec. Depends on the interrupt mode configured to the driver,
7564  * the driver will try to fallback from the configured interrupt mode to an
7565  * interrupt mode which is supported by the platform, kernel, and device in
7566  * the order of:
7567  * MSI-X -> MSI -> IRQ.
7568  *
7569  * Return codes
7570  *      0 - successful
7571  *      other values - error
7572  **/
7573 static uint32_t
7574 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7575 {
7576         uint32_t intr_mode = LPFC_INTR_ERROR;
7577         int retval, index;
7578
7579         if (cfg_mode == 2) {
7580                 /* Preparation before conf_msi mbox cmd */
7581                 retval = 0;
7582                 if (!retval) {
7583                         /* Now, try to enable MSI-X interrupt mode */
7584                         retval = lpfc_sli4_enable_msix(phba);
7585                         if (!retval) {
7586                                 /* Indicate initialization to MSI-X mode */
7587                                 phba->intr_type = MSIX;
7588                                 intr_mode = 2;
7589                         }
7590                 }
7591         }
7592
7593         /* Fallback to MSI if MSI-X initialization failed */
7594         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7595                 retval = lpfc_sli4_enable_msi(phba);
7596                 if (!retval) {
7597                         /* Indicate initialization to MSI mode */
7598                         phba->intr_type = MSI;
7599                         intr_mode = 1;
7600                 }
7601         }
7602
7603         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7604         if (phba->intr_type == NONE) {
7605                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7606                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7607                 if (!retval) {
7608                         /* Indicate initialization to INTx mode */
7609                         phba->intr_type = INTx;
7610                         intr_mode = 0;
7611                         for (index = 0; index < phba->cfg_fcp_eq_count;
7612                              index++) {
7613                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7614                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7615                         }
7616                 }
7617         }
7618         return intr_mode;
7619 }
7620
7621 /**
7622  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7623  * @phba: pointer to lpfc hba data structure.
7624  *
7625  * This routine is invoked to disable device interrupt and disassociate
7626  * the driver's interrupt handler(s) from interrupt vector(s) to device
7627  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7628  * will release the interrupt vector(s) for the message signaled interrupt.
7629  **/
7630 static void
7631 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7632 {
7633         /* Disable the currently initialized interrupt mode */
7634         if (phba->intr_type == MSIX)
7635                 lpfc_sli4_disable_msix(phba);
7636         else if (phba->intr_type == MSI)
7637                 lpfc_sli4_disable_msi(phba);
7638         else if (phba->intr_type == INTx)
7639                 free_irq(phba->pcidev->irq, phba);
7640
7641         /* Reset interrupt management states */
7642         phba->intr_type = NONE;
7643         phba->sli.slistat.sli_intr = 0;
7644
7645         return;
7646 }
7647
7648 /**
7649  * lpfc_unset_hba - Unset SLI3 hba device initialization
7650  * @phba: pointer to lpfc hba data structure.
7651  *
7652  * This routine is invoked to unset the HBA device initialization steps to
7653  * a device with SLI-3 interface spec.
7654  **/
7655 static void
7656 lpfc_unset_hba(struct lpfc_hba *phba)
7657 {
7658         struct lpfc_vport *vport = phba->pport;
7659         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7660
7661         spin_lock_irq(shost->host_lock);
7662         vport->load_flag |= FC_UNLOADING;
7663         spin_unlock_irq(shost->host_lock);
7664
7665         lpfc_stop_hba_timers(phba);
7666
7667         phba->pport->work_port_events = 0;
7668
7669         lpfc_sli_hba_down(phba);
7670
7671         lpfc_sli_brdrestart(phba);
7672
7673         lpfc_sli_disable_intr(phba);
7674
7675         return;
7676 }
7677
7678 /**
7679  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7680  * @phba: pointer to lpfc hba data structure.
7681  *
7682  * This routine is invoked to unset the HBA device initialization steps to
7683  * a device with SLI-4 interface spec.
7684  **/
7685 static void
7686 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7687 {
7688         struct lpfc_vport *vport = phba->pport;
7689         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7690
7691         spin_lock_irq(shost->host_lock);
7692         vport->load_flag |= FC_UNLOADING;
7693         spin_unlock_irq(shost->host_lock);
7694
7695         phba->pport->work_port_events = 0;
7696
7697         /* Stop the SLI4 device port */
7698         lpfc_stop_port(phba);
7699
7700         lpfc_sli4_disable_intr(phba);
7701
7702         /* Reset SLI4 HBA FCoE function */
7703         lpfc_pci_function_reset(phba);
7704
7705         return;
7706 }
7707
7708 /**
7709  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7710  * @phba: Pointer to HBA context object.
7711  *
7712  * This function is called in the SLI4 code path to wait for completion
7713  * of device's XRIs exchange busy. It will check the XRI exchange busy
7714  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7715  * that, it will check the XRI exchange busy on outstanding FCP and ELS
7716  * I/Os every 30 seconds, log error message, and wait forever. Only when
7717  * all XRI exchange busy complete, the driver unload shall proceed with
7718  * invoking the function reset ioctl mailbox command to the CNA and the
7719  * the rest of the driver unload resource release.
7720  **/
7721 static void
7722 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7723 {
7724         int wait_time = 0;
7725         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7726         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7727
7728         while (!fcp_xri_cmpl || !els_xri_cmpl) {
7729                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7730                         if (!fcp_xri_cmpl)
7731                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7732                                                 "2877 FCP XRI exchange busy "
7733                                                 "wait time: %d seconds.\n",
7734                                                 wait_time/1000);
7735                         if (!els_xri_cmpl)
7736                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7737                                                 "2878 ELS XRI exchange busy "
7738                                                 "wait time: %d seconds.\n",
7739                                                 wait_time/1000);
7740                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7741                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7742                 } else {
7743                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7744                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7745                 }
7746                 fcp_xri_cmpl =
7747                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7748                 els_xri_cmpl =
7749                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7750         }
7751 }
7752
7753 /**
7754  * lpfc_sli4_hba_unset - Unset the fcoe hba
7755  * @phba: Pointer to HBA context object.
7756  *
7757  * This function is called in the SLI4 code path to reset the HBA's FCoE
7758  * function. The caller is not required to hold any lock. This routine
7759  * issues PCI function reset mailbox command to reset the FCoE function.
7760  * At the end of the function, it calls lpfc_hba_down_post function to
7761  * free any pending commands.
7762  **/
7763 static void
7764 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7765 {
7766         int wait_cnt = 0;
7767         LPFC_MBOXQ_t *mboxq;
7768
7769         lpfc_stop_hba_timers(phba);
7770         phba->sli4_hba.intr_enable = 0;
7771
7772         /*
7773          * Gracefully wait out the potential current outstanding asynchronous
7774          * mailbox command.
7775          */
7776
7777         /* First, block any pending async mailbox command from posted */
7778         spin_lock_irq(&phba->hbalock);
7779         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7780         spin_unlock_irq(&phba->hbalock);
7781         /* Now, trying to wait it out if we can */
7782         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7783                 msleep(10);
7784                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7785                         break;
7786         }
7787         /* Forcefully release the outstanding mailbox command if timed out */
7788         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7789                 spin_lock_irq(&phba->hbalock);
7790                 mboxq = phba->sli.mbox_active;
7791                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7792                 __lpfc_mbox_cmpl_put(phba, mboxq);
7793                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7794                 phba->sli.mbox_active = NULL;
7795                 spin_unlock_irq(&phba->hbalock);
7796         }
7797
7798         /* Abort all iocbs associated with the hba */
7799         lpfc_sli_hba_iocb_abort(phba);
7800
7801         /* Wait for completion of device XRI exchange busy */
7802         lpfc_sli4_xri_exchange_busy_wait(phba);
7803
7804         /* Disable PCI subsystem interrupt */
7805         lpfc_sli4_disable_intr(phba);
7806
7807         /* Stop kthread signal shall trigger work_done one more time */
7808         kthread_stop(phba->worker_thread);
7809
7810         /* Reset SLI4 HBA FCoE function */
7811         lpfc_pci_function_reset(phba);
7812
7813         /* Stop the SLI4 device port */
7814         phba->pport->work_port_events = 0;
7815 }
7816
7817  /**
7818  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7819  * @phba: Pointer to HBA context object.
7820  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7821  *
7822  * This function is called in the SLI4 code path to read the port's
7823  * sli4 capabilities.
7824  *
7825  * This function may be be called from any context that can block-wait
7826  * for the completion.  The expectation is that this routine is called
7827  * typically from probe_one or from the online routine.
7828  **/
7829 int
7830 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7831 {
7832         int rc;
7833         struct lpfc_mqe *mqe;
7834         struct lpfc_pc_sli4_params *sli4_params;
7835         uint32_t mbox_tmo;
7836
7837         rc = 0;
7838         mqe = &mboxq->u.mqe;
7839
7840         /* Read the port's SLI4 Parameters port capabilities */
7841         lpfc_pc_sli4_params(mboxq);
7842         if (!phba->sli4_hba.intr_enable)
7843                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7844         else {
7845                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7846                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7847         }
7848
7849         if (unlikely(rc))
7850                 return 1;
7851
7852         sli4_params = &phba->sli4_hba.pc_sli4_params;
7853         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7854         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7855         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7856         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7857                                              &mqe->un.sli4_params);
7858         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7859                                              &mqe->un.sli4_params);
7860         sli4_params->proto_types = mqe->un.sli4_params.word3;
7861         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7862         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7863         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7864         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7865         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7866         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7867         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7868         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7869         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7870         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7871         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7872         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7873         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7874         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7875         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7876         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7877         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7878         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7879         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7880         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7881         return rc;
7882 }
7883
7884 /**
7885  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
7886  * @phba: Pointer to HBA context object.
7887  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7888  *
7889  * This function is called in the SLI4 code path to read the port's
7890  * sli4 capabilities.
7891  *
7892  * This function may be be called from any context that can block-wait
7893  * for the completion.  The expectation is that this routine is called
7894  * typically from probe_one or from the online routine.
7895  **/
7896 int
7897 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7898 {
7899         int rc;
7900         struct lpfc_mqe *mqe = &mboxq->u.mqe;
7901         struct lpfc_pc_sli4_params *sli4_params;
7902         int length;
7903         struct lpfc_sli4_parameters *mbx_sli4_parameters;
7904
7905         /* Read the port's SLI4 Config Parameters */
7906         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
7907                   sizeof(struct lpfc_sli4_cfg_mhdr));
7908         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7909                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
7910                          length, LPFC_SLI4_MBX_EMBED);
7911         if (!phba->sli4_hba.intr_enable)
7912                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7913         else
7914                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
7915                         lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
7916         if (unlikely(rc))
7917                 return rc;
7918         sli4_params = &phba->sli4_hba.pc_sli4_params;
7919         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
7920         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
7921         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
7922         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
7923         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
7924                                              mbx_sli4_parameters);
7925         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
7926                                              mbx_sli4_parameters);
7927         if (bf_get(cfg_phwq, mbx_sli4_parameters))
7928                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
7929         else
7930                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
7931         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
7932         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
7933         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
7934         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
7935         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
7936         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
7937         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
7938                                             mbx_sli4_parameters);
7939         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
7940                                            mbx_sli4_parameters);
7941         return 0;
7942 }
7943
7944 /**
7945  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7946  * @pdev: pointer to PCI device
7947  * @pid: pointer to PCI device identifier
7948  *
7949  * This routine is to be called to attach a device with SLI-3 interface spec
7950  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7951  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7952  * information of the device and driver to see if the driver state that it can
7953  * support this kind of device. If the match is successful, the driver core
7954  * invokes this routine. If this routine determines it can claim the HBA, it
7955  * does all the initialization that it needs to do to handle the HBA properly.
7956  *
7957  * Return code
7958  *      0 - driver can claim the device
7959  *      negative value - driver can not claim the device
7960  **/
7961 static int __devinit
7962 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7963 {
7964         struct lpfc_hba   *phba;
7965         struct lpfc_vport *vport = NULL;
7966         struct Scsi_Host  *shost = NULL;
7967         int error;
7968         uint32_t cfg_mode, intr_mode;
7969
7970         /* Allocate memory for HBA structure */
7971         phba = lpfc_hba_alloc(pdev);
7972         if (!phba)
7973                 return -ENOMEM;
7974
7975         /* Perform generic PCI device enabling operation */
7976         error = lpfc_enable_pci_dev(phba);
7977         if (error) {
7978                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7979                                 "1401 Failed to enable pci device.\n");
7980                 goto out_free_phba;
7981         }
7982
7983         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7984         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7985         if (error)
7986                 goto out_disable_pci_dev;
7987
7988         /* Set up SLI-3 specific device PCI memory space */
7989         error = lpfc_sli_pci_mem_setup(phba);
7990         if (error) {
7991                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7992                                 "1402 Failed to set up pci memory space.\n");
7993                 goto out_disable_pci_dev;
7994         }
7995
7996         /* Set up phase-1 common device driver resources */
7997         error = lpfc_setup_driver_resource_phase1(phba);
7998         if (error) {
7999                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8000                                 "1403 Failed to set up driver resource.\n");
8001                 goto out_unset_pci_mem_s3;
8002         }
8003
8004         /* Set up SLI-3 specific device driver resources */
8005         error = lpfc_sli_driver_resource_setup(phba);
8006         if (error) {
8007                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8008                                 "1404 Failed to set up driver resource.\n");
8009                 goto out_unset_pci_mem_s3;
8010         }
8011
8012         /* Initialize and populate the iocb list per host */
8013         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8014         if (error) {
8015                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8016                                 "1405 Failed to initialize iocb list.\n");
8017                 goto out_unset_driver_resource_s3;
8018         }
8019
8020         /* Set up common device driver resources */
8021         error = lpfc_setup_driver_resource_phase2(phba);
8022         if (error) {
8023                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8024                                 "1406 Failed to set up driver resource.\n");
8025                 goto out_free_iocb_list;
8026         }
8027
8028         /* Create SCSI host to the physical port */
8029         error = lpfc_create_shost(phba);
8030         if (error) {
8031                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8032                                 "1407 Failed to create scsi host.\n");
8033                 goto out_unset_driver_resource;
8034         }
8035
8036         /* Configure sysfs attributes */
8037         vport = phba->pport;
8038         error = lpfc_alloc_sysfs_attr(vport);
8039         if (error) {
8040                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8041                                 "1476 Failed to allocate sysfs attr\n");
8042                 goto out_destroy_shost;
8043         }
8044
8045         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8046         /* Now, trying to enable interrupt and bring up the device */
8047         cfg_mode = phba->cfg_use_msi;
8048         while (true) {
8049                 /* Put device to a known state before enabling interrupt */
8050                 lpfc_stop_port(phba);
8051                 /* Configure and enable interrupt */
8052                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8053                 if (intr_mode == LPFC_INTR_ERROR) {
8054                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8055                                         "0431 Failed to enable interrupt.\n");
8056                         error = -ENODEV;
8057                         goto out_free_sysfs_attr;
8058                 }
8059                 /* SLI-3 HBA setup */
8060                 if (lpfc_sli_hba_setup(phba)) {
8061                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8062                                         "1477 Failed to set up hba\n");
8063                         error = -ENODEV;
8064                         goto out_remove_device;
8065                 }
8066
8067                 /* Wait 50ms for the interrupts of previous mailbox commands */
8068                 msleep(50);
8069                 /* Check active interrupts on message signaled interrupts */
8070                 if (intr_mode == 0 ||
8071                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8072                         /* Log the current active interrupt mode */
8073                         phba->intr_mode = intr_mode;
8074                         lpfc_log_intr_mode(phba, intr_mode);
8075                         break;
8076                 } else {
8077                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8078                                         "0447 Configure interrupt mode (%d) "
8079                                         "failed active interrupt test.\n",
8080                                         intr_mode);
8081                         /* Disable the current interrupt mode */
8082                         lpfc_sli_disable_intr(phba);
8083                         /* Try next level of interrupt mode */
8084                         cfg_mode = --intr_mode;
8085                 }
8086         }
8087
8088         /* Perform post initialization setup */
8089         lpfc_post_init_setup(phba);
8090
8091         /* Check if there are static vports to be created. */
8092         lpfc_create_static_vport(phba);
8093
8094         return 0;
8095
8096 out_remove_device:
8097         lpfc_unset_hba(phba);
8098 out_free_sysfs_attr:
8099         lpfc_free_sysfs_attr(vport);
8100 out_destroy_shost:
8101         lpfc_destroy_shost(phba);
8102 out_unset_driver_resource:
8103         lpfc_unset_driver_resource_phase2(phba);
8104 out_free_iocb_list:
8105         lpfc_free_iocb_list(phba);
8106 out_unset_driver_resource_s3:
8107         lpfc_sli_driver_resource_unset(phba);
8108 out_unset_pci_mem_s3:
8109         lpfc_sli_pci_mem_unset(phba);
8110 out_disable_pci_dev:
8111         lpfc_disable_pci_dev(phba);
8112         if (shost)
8113                 scsi_host_put(shost);
8114 out_free_phba:
8115         lpfc_hba_free(phba);
8116         return error;
8117 }
8118
8119 /**
8120  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8121  * @pdev: pointer to PCI device
8122  *
8123  * This routine is to be called to disattach a device with SLI-3 interface
8124  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8125  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8126  * device to be removed from the PCI subsystem properly.
8127  **/
8128 static void __devexit
8129 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8130 {
8131         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8132         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8133         struct lpfc_vport **vports;
8134         struct lpfc_hba   *phba = vport->phba;
8135         int i;
8136         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8137
8138         spin_lock_irq(&phba->hbalock);
8139         vport->load_flag |= FC_UNLOADING;
8140         spin_unlock_irq(&phba->hbalock);
8141
8142         lpfc_free_sysfs_attr(vport);
8143
8144         /* Release all the vports against this physical port */
8145         vports = lpfc_create_vport_work_array(phba);
8146         if (vports != NULL)
8147                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8148                         fc_vport_terminate(vports[i]->fc_vport);
8149         lpfc_destroy_vport_work_array(phba, vports);
8150
8151         /* Remove FC host and then SCSI host with the physical port */
8152         fc_remove_host(shost);
8153         scsi_remove_host(shost);
8154         lpfc_cleanup(vport);
8155
8156         /*
8157          * Bring down the SLI Layer. This step disable all interrupts,
8158          * clears the rings, discards all mailbox commands, and resets
8159          * the HBA.
8160          */
8161
8162         /* HBA interrupt will be disabled after this call */
8163         lpfc_sli_hba_down(phba);
8164         /* Stop kthread signal shall trigger work_done one more time */
8165         kthread_stop(phba->worker_thread);
8166         /* Final cleanup of txcmplq and reset the HBA */
8167         lpfc_sli_brdrestart(phba);
8168
8169         lpfc_stop_hba_timers(phba);
8170         spin_lock_irq(&phba->hbalock);
8171         list_del_init(&vport->listentry);
8172         spin_unlock_irq(&phba->hbalock);
8173
8174         lpfc_debugfs_terminate(vport);
8175
8176         /* Disable interrupt */
8177         lpfc_sli_disable_intr(phba);
8178
8179         pci_set_drvdata(pdev, NULL);
8180         scsi_host_put(shost);
8181
8182         /*
8183          * Call scsi_free before mem_free since scsi bufs are released to their
8184          * corresponding pools here.
8185          */
8186         lpfc_scsi_free(phba);
8187         lpfc_mem_free_all(phba);
8188
8189         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8190                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8191
8192         /* Free resources associated with SLI2 interface */
8193         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8194                           phba->slim2p.virt, phba->slim2p.phys);
8195
8196         /* unmap adapter SLIM and Control Registers */
8197         iounmap(phba->ctrl_regs_memmap_p);
8198         iounmap(phba->slim_memmap_p);
8199
8200         lpfc_hba_free(phba);
8201
8202         pci_release_selected_regions(pdev, bars);
8203         pci_disable_device(pdev);
8204 }
8205
8206 /**
8207  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8208  * @pdev: pointer to PCI device
8209  * @msg: power management message
8210  *
8211  * This routine is to be called from the kernel's PCI subsystem to support
8212  * system Power Management (PM) to device with SLI-3 interface spec. When
8213  * PM invokes this method, it quiesces the device by stopping the driver's
8214  * worker thread for the device, turning off device's interrupt and DMA,
8215  * and bring the device offline. Note that as the driver implements the
8216  * minimum PM requirements to a power-aware driver's PM support for the
8217  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8218  * to the suspend() method call will be treated as SUSPEND and the driver will
8219  * fully reinitialize its device during resume() method call, the driver will
8220  * set device to PCI_D3hot state in PCI config space instead of setting it
8221  * according to the @msg provided by the PM.
8222  *
8223  * Return code
8224  *      0 - driver suspended the device
8225  *      Error otherwise
8226  **/
8227 static int
8228 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8229 {
8230         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8231         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8232
8233         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8234                         "0473 PCI device Power Management suspend.\n");
8235
8236         /* Bring down the device */
8237         lpfc_offline_prep(phba);
8238         lpfc_offline(phba);
8239         kthread_stop(phba->worker_thread);
8240
8241         /* Disable interrupt from device */
8242         lpfc_sli_disable_intr(phba);
8243
8244         /* Save device state to PCI config space */
8245         pci_save_state(pdev);
8246         pci_set_power_state(pdev, PCI_D3hot);
8247
8248         return 0;
8249 }
8250
8251 /**
8252  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8253  * @pdev: pointer to PCI device
8254  *
8255  * This routine is to be called from the kernel's PCI subsystem to support
8256  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8257  * invokes this method, it restores the device's PCI config space state and
8258  * fully reinitializes the device and brings it online. Note that as the
8259  * driver implements the minimum PM requirements to a power-aware driver's
8260  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8261  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8262  * driver will fully reinitialize its device during resume() method call,
8263  * the device will be set to PCI_D0 directly in PCI config space before
8264  * restoring the state.
8265  *
8266  * Return code
8267  *      0 - driver suspended the device
8268  *      Error otherwise
8269  **/
8270 static int
8271 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8272 {
8273         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8274         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8275         uint32_t intr_mode;
8276         int error;
8277
8278         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8279                         "0452 PCI device Power Management resume.\n");
8280
8281         /* Restore device state from PCI config space */
8282         pci_set_power_state(pdev, PCI_D0);
8283         pci_restore_state(pdev);
8284
8285         /*
8286          * As the new kernel behavior of pci_restore_state() API call clears
8287          * device saved_state flag, need to save the restored state again.
8288          */
8289         pci_save_state(pdev);
8290
8291         if (pdev->is_busmaster)
8292                 pci_set_master(pdev);
8293
8294         /* Startup the kernel thread for this host adapter. */
8295         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8296                                         "lpfc_worker_%d", phba->brd_no);
8297         if (IS_ERR(phba->worker_thread)) {
8298                 error = PTR_ERR(phba->worker_thread);
8299                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8300                                 "0434 PM resume failed to start worker "
8301                                 "thread: error=x%x.\n", error);
8302                 return error;
8303         }
8304
8305         /* Configure and enable interrupt */
8306         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8307         if (intr_mode == LPFC_INTR_ERROR) {
8308                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8309                                 "0430 PM resume Failed to enable interrupt\n");
8310                 return -EIO;
8311         } else
8312                 phba->intr_mode = intr_mode;
8313
8314         /* Restart HBA and bring it online */
8315         lpfc_sli_brdrestart(phba);
8316         lpfc_online(phba);
8317
8318         /* Log the current active interrupt mode */
8319         lpfc_log_intr_mode(phba, phba->intr_mode);
8320
8321         return 0;
8322 }
8323
8324 /**
8325  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8326  * @phba: pointer to lpfc hba data structure.
8327  *
8328  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8329  * aborts all the outstanding SCSI I/Os to the pci device.
8330  **/
8331 static void
8332 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8333 {
8334         struct lpfc_sli *psli = &phba->sli;
8335         struct lpfc_sli_ring  *pring;
8336
8337         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8338                         "2723 PCI channel I/O abort preparing for recovery\n");
8339
8340         /*
8341          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8342          * and let the SCSI mid-layer to retry them to recover.
8343          */
8344         pring = &psli->ring[psli->fcp_ring];
8345         lpfc_sli_abort_iocb_ring(phba, pring);
8346 }
8347
8348 /**
8349  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8350  * @phba: pointer to lpfc hba data structure.
8351  *
8352  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8353  * disables the device interrupt and pci device, and aborts the internal FCP
8354  * pending I/Os.
8355  **/
8356 static void
8357 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8358 {
8359         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8360                         "2710 PCI channel disable preparing for reset\n");
8361
8362         /* Block any management I/Os to the device */
8363         lpfc_block_mgmt_io(phba);
8364
8365         /* Block all SCSI devices' I/Os on the host */
8366         lpfc_scsi_dev_block(phba);
8367
8368         /* stop all timers */
8369         lpfc_stop_hba_timers(phba);
8370
8371         /* Disable interrupt and pci device */
8372         lpfc_sli_disable_intr(phba);
8373         pci_disable_device(phba->pcidev);
8374
8375         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8376         lpfc_sli_flush_fcp_rings(phba);
8377 }
8378
8379 /**
8380  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8381  * @phba: pointer to lpfc hba data structure.
8382  *
8383  * This routine is called to prepare the SLI3 device for PCI slot permanently
8384  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8385  * pending I/Os.
8386  **/
8387 static void
8388 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8389 {
8390         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8391                         "2711 PCI channel permanent disable for failure\n");
8392         /* Block all SCSI devices' I/Os on the host */
8393         lpfc_scsi_dev_block(phba);
8394
8395         /* stop all timers */
8396         lpfc_stop_hba_timers(phba);
8397
8398         /* Clean up all driver's outstanding SCSI I/Os */
8399         lpfc_sli_flush_fcp_rings(phba);
8400 }
8401
8402 /**
8403  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8404  * @pdev: pointer to PCI device.
8405  * @state: the current PCI connection state.
8406  *
8407  * This routine is called from the PCI subsystem for I/O error handling to
8408  * device with SLI-3 interface spec. This function is called by the PCI
8409  * subsystem after a PCI bus error affecting this device has been detected.
8410  * When this function is invoked, it will need to stop all the I/Os and
8411  * interrupt(s) to the device. Once that is done, it will return
8412  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8413  * as desired.
8414  *
8415  * Return codes
8416  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8417  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8418  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8419  **/
8420 static pci_ers_result_t
8421 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8422 {
8423         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8424         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8425
8426         switch (state) {
8427         case pci_channel_io_normal:
8428                 /* Non-fatal error, prepare for recovery */
8429                 lpfc_sli_prep_dev_for_recover(phba);
8430                 return PCI_ERS_RESULT_CAN_RECOVER;
8431         case pci_channel_io_frozen:
8432                 /* Fatal error, prepare for slot reset */
8433                 lpfc_sli_prep_dev_for_reset(phba);
8434                 return PCI_ERS_RESULT_NEED_RESET;
8435         case pci_channel_io_perm_failure:
8436                 /* Permanent failure, prepare for device down */
8437                 lpfc_sli_prep_dev_for_perm_failure(phba);
8438                 return PCI_ERS_RESULT_DISCONNECT;
8439         default:
8440                 /* Unknown state, prepare and request slot reset */
8441                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8442                                 "0472 Unknown PCI error state: x%x\n", state);
8443                 lpfc_sli_prep_dev_for_reset(phba);
8444                 return PCI_ERS_RESULT_NEED_RESET;
8445         }
8446 }
8447
8448 /**
8449  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8450  * @pdev: pointer to PCI device.
8451  *
8452  * This routine is called from the PCI subsystem for error handling to
8453  * device with SLI-3 interface spec. This is called after PCI bus has been
8454  * reset to restart the PCI card from scratch, as if from a cold-boot.
8455  * During the PCI subsystem error recovery, after driver returns
8456  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8457  * recovery and then call this routine before calling the .resume method
8458  * to recover the device. This function will initialize the HBA device,
8459  * enable the interrupt, but it will just put the HBA to offline state
8460  * without passing any I/O traffic.
8461  *
8462  * Return codes
8463  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8464  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8465  */
8466 static pci_ers_result_t
8467 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8468 {
8469         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8470         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8471         struct lpfc_sli *psli = &phba->sli;
8472         uint32_t intr_mode;
8473
8474         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8475         if (pci_enable_device_mem(pdev)) {
8476                 printk(KERN_ERR "lpfc: Cannot re-enable "
8477                         "PCI device after reset.\n");
8478                 return PCI_ERS_RESULT_DISCONNECT;
8479         }
8480
8481         pci_restore_state(pdev);
8482
8483         /*
8484          * As the new kernel behavior of pci_restore_state() API call clears
8485          * device saved_state flag, need to save the restored state again.
8486          */
8487         pci_save_state(pdev);
8488
8489         if (pdev->is_busmaster)
8490                 pci_set_master(pdev);
8491
8492         spin_lock_irq(&phba->hbalock);
8493         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8494         spin_unlock_irq(&phba->hbalock);
8495
8496         /* Configure and enable interrupt */
8497         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8498         if (intr_mode == LPFC_INTR_ERROR) {
8499                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8500                                 "0427 Cannot re-enable interrupt after "
8501                                 "slot reset.\n");
8502                 return PCI_ERS_RESULT_DISCONNECT;
8503         } else
8504                 phba->intr_mode = intr_mode;
8505
8506         /* Take device offline, it will perform cleanup */
8507         lpfc_offline_prep(phba);
8508         lpfc_offline(phba);
8509         lpfc_sli_brdrestart(phba);
8510
8511         /* Log the current active interrupt mode */
8512         lpfc_log_intr_mode(phba, phba->intr_mode);
8513
8514         return PCI_ERS_RESULT_RECOVERED;
8515 }
8516
8517 /**
8518  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8519  * @pdev: pointer to PCI device
8520  *
8521  * This routine is called from the PCI subsystem for error handling to device
8522  * with SLI-3 interface spec. It is called when kernel error recovery tells
8523  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8524  * error recovery. After this call, traffic can start to flow from this device
8525  * again.
8526  */
8527 static void
8528 lpfc_io_resume_s3(struct pci_dev *pdev)
8529 {
8530         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8531         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8532
8533         /* Bring device online, it will be no-op for non-fatal error resume */
8534         lpfc_online(phba);
8535
8536         /* Clean up Advanced Error Reporting (AER) if needed */
8537         if (phba->hba_flag & HBA_AER_ENABLED)
8538                 pci_cleanup_aer_uncorrect_error_status(pdev);
8539 }
8540
8541 /**
8542  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8543  * @phba: pointer to lpfc hba data structure.
8544  *
8545  * returns the number of ELS/CT IOCBs to reserve
8546  **/
8547 int
8548 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8549 {
8550         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8551
8552         if (phba->sli_rev == LPFC_SLI_REV4) {
8553                 if (max_xri <= 100)
8554                         return 10;
8555                 else if (max_xri <= 256)
8556                         return 25;
8557                 else if (max_xri <= 512)
8558                         return 50;
8559                 else if (max_xri <= 1024)
8560                         return 100;
8561                 else
8562                         return 150;
8563         } else
8564                 return 0;
8565 }
8566
8567 /**
8568  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8569  * @pdev: pointer to PCI device
8570  * @pid: pointer to PCI device identifier
8571  *
8572  * This routine is called from the kernel's PCI subsystem to device with
8573  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8574  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8575  * information of the device and driver to see if the driver state that it
8576  * can support this kind of device. If the match is successful, the driver
8577  * core invokes this routine. If this routine determines it can claim the HBA,
8578  * it does all the initialization that it needs to do to handle the HBA
8579  * properly.
8580  *
8581  * Return code
8582  *      0 - driver can claim the device
8583  *      negative value - driver can not claim the device
8584  **/
8585 static int __devinit
8586 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8587 {
8588         struct lpfc_hba   *phba;
8589         struct lpfc_vport *vport = NULL;
8590         struct Scsi_Host  *shost = NULL;
8591         int error;
8592         uint32_t cfg_mode, intr_mode;
8593         int mcnt;
8594
8595         /* Allocate memory for HBA structure */
8596         phba = lpfc_hba_alloc(pdev);
8597         if (!phba)
8598                 return -ENOMEM;
8599
8600         /* Perform generic PCI device enabling operation */
8601         error = lpfc_enable_pci_dev(phba);
8602         if (error) {
8603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604                                 "1409 Failed to enable pci device.\n");
8605                 goto out_free_phba;
8606         }
8607
8608         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8609         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8610         if (error)
8611                 goto out_disable_pci_dev;
8612
8613         /* Set up SLI-4 specific device PCI memory space */
8614         error = lpfc_sli4_pci_mem_setup(phba);
8615         if (error) {
8616                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8617                                 "1410 Failed to set up pci memory space.\n");
8618                 goto out_disable_pci_dev;
8619         }
8620
8621         /* Set up phase-1 common device driver resources */
8622         error = lpfc_setup_driver_resource_phase1(phba);
8623         if (error) {
8624                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8625                                 "1411 Failed to set up driver resource.\n");
8626                 goto out_unset_pci_mem_s4;
8627         }
8628
8629         /* Set up SLI-4 Specific device driver resources */
8630         error = lpfc_sli4_driver_resource_setup(phba);
8631         if (error) {
8632                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8633                                 "1412 Failed to set up driver resource.\n");
8634                 goto out_unset_pci_mem_s4;
8635         }
8636
8637         /* Initialize and populate the iocb list per host */
8638
8639         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8640                         "2821 initialize iocb list %d.\n",
8641                         phba->cfg_iocb_cnt*1024);
8642         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8643
8644         if (error) {
8645                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8646                                 "1413 Failed to initialize iocb list.\n");
8647                 goto out_unset_driver_resource_s4;
8648         }
8649
8650         INIT_LIST_HEAD(&phba->active_rrq_list);
8651
8652         /* Set up common device driver resources */
8653         error = lpfc_setup_driver_resource_phase2(phba);
8654         if (error) {
8655                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8656                                 "1414 Failed to set up driver resource.\n");
8657                 goto out_free_iocb_list;
8658         }
8659
8660         /* Create SCSI host to the physical port */
8661         error = lpfc_create_shost(phba);
8662         if (error) {
8663                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8664                                 "1415 Failed to create scsi host.\n");
8665                 goto out_unset_driver_resource;
8666         }
8667
8668         /* Configure sysfs attributes */
8669         vport = phba->pport;
8670         error = lpfc_alloc_sysfs_attr(vport);
8671         if (error) {
8672                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8673                                 "1416 Failed to allocate sysfs attr\n");
8674                 goto out_destroy_shost;
8675         }
8676
8677         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8678         /* Now, trying to enable interrupt and bring up the device */
8679         cfg_mode = phba->cfg_use_msi;
8680         while (true) {
8681                 /* Put device to a known state before enabling interrupt */
8682                 lpfc_stop_port(phba);
8683                 /* Configure and enable interrupt */
8684                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8685                 if (intr_mode == LPFC_INTR_ERROR) {
8686                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8687                                         "0426 Failed to enable interrupt.\n");
8688                         error = -ENODEV;
8689                         goto out_free_sysfs_attr;
8690                 }
8691                 /* Default to single FCP EQ for non-MSI-X */
8692                 if (phba->intr_type != MSIX)
8693                         phba->cfg_fcp_eq_count = 1;
8694                 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8695                         phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8696                 /* Set up SLI-4 HBA */
8697                 if (lpfc_sli4_hba_setup(phba)) {
8698                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8699                                         "1421 Failed to set up hba\n");
8700                         error = -ENODEV;
8701                         goto out_disable_intr;
8702                 }
8703
8704                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8705                 if (intr_mode != 0)
8706                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8707                                                             LPFC_ACT_INTR_CNT);
8708
8709                 /* Check active interrupts received only for MSI/MSI-X */
8710                 if (intr_mode == 0 ||
8711                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8712                         /* Log the current active interrupt mode */
8713                         phba->intr_mode = intr_mode;
8714                         lpfc_log_intr_mode(phba, intr_mode);
8715                         break;
8716                 }
8717                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8718                                 "0451 Configure interrupt mode (%d) "
8719                                 "failed active interrupt test.\n",
8720                                 intr_mode);
8721                 /* Unset the previous SLI-4 HBA setup. */
8722                 /*
8723                  * TODO:  Is this operation compatible with IF TYPE 2
8724                  * devices?  All port state is deleted and cleared.
8725                  */
8726                 lpfc_sli4_unset_hba(phba);
8727                 /* Try next level of interrupt mode */
8728                 cfg_mode = --intr_mode;
8729         }
8730
8731         /* Perform post initialization setup */
8732         lpfc_post_init_setup(phba);
8733
8734         /* Check if there are static vports to be created. */
8735         lpfc_create_static_vport(phba);
8736
8737         return 0;
8738
8739 out_disable_intr:
8740         lpfc_sli4_disable_intr(phba);
8741 out_free_sysfs_attr:
8742         lpfc_free_sysfs_attr(vport);
8743 out_destroy_shost:
8744         lpfc_destroy_shost(phba);
8745 out_unset_driver_resource:
8746         lpfc_unset_driver_resource_phase2(phba);
8747 out_free_iocb_list:
8748         lpfc_free_iocb_list(phba);
8749 out_unset_driver_resource_s4:
8750         lpfc_sli4_driver_resource_unset(phba);
8751 out_unset_pci_mem_s4:
8752         lpfc_sli4_pci_mem_unset(phba);
8753 out_disable_pci_dev:
8754         lpfc_disable_pci_dev(phba);
8755         if (shost)
8756                 scsi_host_put(shost);
8757 out_free_phba:
8758         lpfc_hba_free(phba);
8759         return error;
8760 }
8761
8762 /**
8763  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8764  * @pdev: pointer to PCI device
8765  *
8766  * This routine is called from the kernel's PCI subsystem to device with
8767  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8768  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8769  * device to be removed from the PCI subsystem properly.
8770  **/
8771 static void __devexit
8772 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8773 {
8774         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8775         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8776         struct lpfc_vport **vports;
8777         struct lpfc_hba *phba = vport->phba;
8778         int i;
8779
8780         /* Mark the device unloading flag */
8781         spin_lock_irq(&phba->hbalock);
8782         vport->load_flag |= FC_UNLOADING;
8783         spin_unlock_irq(&phba->hbalock);
8784
8785         /* Free the HBA sysfs attributes */
8786         lpfc_free_sysfs_attr(vport);
8787
8788         /* Release all the vports against this physical port */
8789         vports = lpfc_create_vport_work_array(phba);
8790         if (vports != NULL)
8791                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8792                         fc_vport_terminate(vports[i]->fc_vport);
8793         lpfc_destroy_vport_work_array(phba, vports);
8794
8795         /* Remove FC host and then SCSI host with the physical port */
8796         fc_remove_host(shost);
8797         scsi_remove_host(shost);
8798
8799         /* Perform cleanup on the physical port */
8800         lpfc_cleanup(vport);
8801
8802         /*
8803          * Bring down the SLI Layer. This step disables all interrupts,
8804          * clears the rings, discards all mailbox commands, and resets
8805          * the HBA FCoE function.
8806          */
8807         lpfc_debugfs_terminate(vport);
8808         lpfc_sli4_hba_unset(phba);
8809
8810         spin_lock_irq(&phba->hbalock);
8811         list_del_init(&vport->listentry);
8812         spin_unlock_irq(&phba->hbalock);
8813
8814         /* Perform scsi free before driver resource_unset since scsi
8815          * buffers are released to their corresponding pools here.
8816          */
8817         lpfc_scsi_free(phba);
8818         lpfc_sli4_driver_resource_unset(phba);
8819
8820         /* Unmap adapter Control and Doorbell registers */
8821         lpfc_sli4_pci_mem_unset(phba);
8822
8823         /* Release PCI resources and disable device's PCI function */
8824         scsi_host_put(shost);
8825         lpfc_disable_pci_dev(phba);
8826
8827         /* Finally, free the driver's device data structure */
8828         lpfc_hba_free(phba);
8829
8830         return;
8831 }
8832
8833 /**
8834  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8835  * @pdev: pointer to PCI device
8836  * @msg: power management message
8837  *
8838  * This routine is called from the kernel's PCI subsystem to support system
8839  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8840  * this method, it quiesces the device by stopping the driver's worker
8841  * thread for the device, turning off device's interrupt and DMA, and bring
8842  * the device offline. Note that as the driver implements the minimum PM
8843  * requirements to a power-aware driver's PM support for suspend/resume -- all
8844  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8845  * method call will be treated as SUSPEND and the driver will fully
8846  * reinitialize its device during resume() method call, the driver will set
8847  * device to PCI_D3hot state in PCI config space instead of setting it
8848  * according to the @msg provided by the PM.
8849  *
8850  * Return code
8851  *      0 - driver suspended the device
8852  *      Error otherwise
8853  **/
8854 static int
8855 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8856 {
8857         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8858         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8859
8860         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8861                         "2843 PCI device Power Management suspend.\n");
8862
8863         /* Bring down the device */
8864         lpfc_offline_prep(phba);
8865         lpfc_offline(phba);
8866         kthread_stop(phba->worker_thread);
8867
8868         /* Disable interrupt from device */
8869         lpfc_sli4_disable_intr(phba);
8870
8871         /* Save device state to PCI config space */
8872         pci_save_state(pdev);
8873         pci_set_power_state(pdev, PCI_D3hot);
8874
8875         return 0;
8876 }
8877
8878 /**
8879  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8880  * @pdev: pointer to PCI device
8881  *
8882  * This routine is called from the kernel's PCI subsystem to support system
8883  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8884  * this method, it restores the device's PCI config space state and fully
8885  * reinitializes the device and brings it online. Note that as the driver
8886  * implements the minimum PM requirements to a power-aware driver's PM for
8887  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8888  * to the suspend() method call will be treated as SUSPEND and the driver
8889  * will fully reinitialize its device during resume() method call, the device
8890  * will be set to PCI_D0 directly in PCI config space before restoring the
8891  * state.
8892  *
8893  * Return code
8894  *      0 - driver suspended the device
8895  *      Error otherwise
8896  **/
8897 static int
8898 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8899 {
8900         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8901         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8902         uint32_t intr_mode;
8903         int error;
8904
8905         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8906                         "0292 PCI device Power Management resume.\n");
8907
8908         /* Restore device state from PCI config space */
8909         pci_set_power_state(pdev, PCI_D0);
8910         pci_restore_state(pdev);
8911
8912         /*
8913          * As the new kernel behavior of pci_restore_state() API call clears
8914          * device saved_state flag, need to save the restored state again.
8915          */
8916         pci_save_state(pdev);
8917
8918         if (pdev->is_busmaster)
8919                 pci_set_master(pdev);
8920
8921          /* Startup the kernel thread for this host adapter. */
8922         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8923                                         "lpfc_worker_%d", phba->brd_no);
8924         if (IS_ERR(phba->worker_thread)) {
8925                 error = PTR_ERR(phba->worker_thread);
8926                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8927                                 "0293 PM resume failed to start worker "
8928                                 "thread: error=x%x.\n", error);
8929                 return error;
8930         }
8931
8932         /* Configure and enable interrupt */
8933         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8934         if (intr_mode == LPFC_INTR_ERROR) {
8935                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8936                                 "0294 PM resume Failed to enable interrupt\n");
8937                 return -EIO;
8938         } else
8939                 phba->intr_mode = intr_mode;
8940
8941         /* Restart HBA and bring it online */
8942         lpfc_sli_brdrestart(phba);
8943         lpfc_online(phba);
8944
8945         /* Log the current active interrupt mode */
8946         lpfc_log_intr_mode(phba, phba->intr_mode);
8947
8948         return 0;
8949 }
8950
8951 /**
8952  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8953  * @phba: pointer to lpfc hba data structure.
8954  *
8955  * This routine is called to prepare the SLI4 device for PCI slot recover. It
8956  * aborts all the outstanding SCSI I/Os to the pci device.
8957  **/
8958 static void
8959 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8960 {
8961         struct lpfc_sli *psli = &phba->sli;
8962         struct lpfc_sli_ring  *pring;
8963
8964         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8965                         "2828 PCI channel I/O abort preparing for recovery\n");
8966         /*
8967          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8968          * and let the SCSI mid-layer to retry them to recover.
8969          */
8970         pring = &psli->ring[psli->fcp_ring];
8971         lpfc_sli_abort_iocb_ring(phba, pring);
8972 }
8973
8974 /**
8975  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8976  * @phba: pointer to lpfc hba data structure.
8977  *
8978  * This routine is called to prepare the SLI4 device for PCI slot reset. It
8979  * disables the device interrupt and pci device, and aborts the internal FCP
8980  * pending I/Os.
8981  **/
8982 static void
8983 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8984 {
8985         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8986                         "2826 PCI channel disable preparing for reset\n");
8987
8988         /* Block any management I/Os to the device */
8989         lpfc_block_mgmt_io(phba);
8990
8991         /* Block all SCSI devices' I/Os on the host */
8992         lpfc_scsi_dev_block(phba);
8993
8994         /* stop all timers */
8995         lpfc_stop_hba_timers(phba);
8996
8997         /* Disable interrupt and pci device */
8998         lpfc_sli4_disable_intr(phba);
8999         pci_disable_device(phba->pcidev);
9000
9001         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9002         lpfc_sli_flush_fcp_rings(phba);
9003 }
9004
9005 /**
9006  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9007  * @phba: pointer to lpfc hba data structure.
9008  *
9009  * This routine is called to prepare the SLI4 device for PCI slot permanently
9010  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9011  * pending I/Os.
9012  **/
9013 static void
9014 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9015 {
9016         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9017                         "2827 PCI channel permanent disable for failure\n");
9018
9019         /* Block all SCSI devices' I/Os on the host */
9020         lpfc_scsi_dev_block(phba);
9021
9022         /* stop all timers */
9023         lpfc_stop_hba_timers(phba);
9024
9025         /* Clean up all driver's outstanding SCSI I/Os */
9026         lpfc_sli_flush_fcp_rings(phba);
9027 }
9028
9029 /**
9030  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9031  * @pdev: pointer to PCI device.
9032  * @state: the current PCI connection state.
9033  *
9034  * This routine is called from the PCI subsystem for error handling to device
9035  * with SLI-4 interface spec. This function is called by the PCI subsystem
9036  * after a PCI bus error affecting this device has been detected. When this
9037  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9038  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9039  * for the PCI subsystem to perform proper recovery as desired.
9040  *
9041  * Return codes
9042  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9043  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9044  **/
9045 static pci_ers_result_t
9046 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9047 {
9048         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9049         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9050
9051         switch (state) {
9052         case pci_channel_io_normal:
9053                 /* Non-fatal error, prepare for recovery */
9054                 lpfc_sli4_prep_dev_for_recover(phba);
9055                 return PCI_ERS_RESULT_CAN_RECOVER;
9056         case pci_channel_io_frozen:
9057                 /* Fatal error, prepare for slot reset */
9058                 lpfc_sli4_prep_dev_for_reset(phba);
9059                 return PCI_ERS_RESULT_NEED_RESET;
9060         case pci_channel_io_perm_failure:
9061                 /* Permanent failure, prepare for device down */
9062                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9063                 return PCI_ERS_RESULT_DISCONNECT;
9064         default:
9065                 /* Unknown state, prepare and request slot reset */
9066                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9067                                 "2825 Unknown PCI error state: x%x\n", state);
9068                 lpfc_sli4_prep_dev_for_reset(phba);
9069                 return PCI_ERS_RESULT_NEED_RESET;
9070         }
9071 }
9072
9073 /**
9074  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9075  * @pdev: pointer to PCI device.
9076  *
9077  * This routine is called from the PCI subsystem for error handling to device
9078  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9079  * restart the PCI card from scratch, as if from a cold-boot. During the
9080  * PCI subsystem error recovery, after the driver returns
9081  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9082  * recovery and then call this routine before calling the .resume method to
9083  * recover the device. This function will initialize the HBA device, enable
9084  * the interrupt, but it will just put the HBA to offline state without
9085  * passing any I/O traffic.
9086  *
9087  * Return codes
9088  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9089  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9090  */
9091 static pci_ers_result_t
9092 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9093 {
9094         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9095         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9096         struct lpfc_sli *psli = &phba->sli;
9097         uint32_t intr_mode;
9098
9099         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9100         if (pci_enable_device_mem(pdev)) {
9101                 printk(KERN_ERR "lpfc: Cannot re-enable "
9102                         "PCI device after reset.\n");
9103                 return PCI_ERS_RESULT_DISCONNECT;
9104         }
9105
9106         pci_restore_state(pdev);
9107         if (pdev->is_busmaster)
9108                 pci_set_master(pdev);
9109
9110         spin_lock_irq(&phba->hbalock);
9111         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9112         spin_unlock_irq(&phba->hbalock);
9113
9114         /* Configure and enable interrupt */
9115         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9116         if (intr_mode == LPFC_INTR_ERROR) {
9117                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9118                                 "2824 Cannot re-enable interrupt after "
9119                                 "slot reset.\n");
9120                 return PCI_ERS_RESULT_DISCONNECT;
9121         } else
9122                 phba->intr_mode = intr_mode;
9123
9124         /* Log the current active interrupt mode */
9125         lpfc_log_intr_mode(phba, phba->intr_mode);
9126
9127         return PCI_ERS_RESULT_RECOVERED;
9128 }
9129
9130 /**
9131  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9132  * @pdev: pointer to PCI device
9133  *
9134  * This routine is called from the PCI subsystem for error handling to device
9135  * with SLI-4 interface spec. It is called when kernel error recovery tells
9136  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9137  * error recovery. After this call, traffic can start to flow from this device
9138  * again.
9139  **/
9140 static void
9141 lpfc_io_resume_s4(struct pci_dev *pdev)
9142 {
9143         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9144         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9145
9146         /*
9147          * In case of slot reset, as function reset is performed through
9148          * mailbox command which needs DMA to be enabled, this operation
9149          * has to be moved to the io resume phase. Taking device offline
9150          * will perform the necessary cleanup.
9151          */
9152         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9153                 /* Perform device reset */
9154                 lpfc_offline_prep(phba);
9155                 lpfc_offline(phba);
9156                 lpfc_sli_brdrestart(phba);
9157                 /* Bring the device back online */
9158                 lpfc_online(phba);
9159         }
9160
9161         /* Clean up Advanced Error Reporting (AER) if needed */
9162         if (phba->hba_flag & HBA_AER_ENABLED)
9163                 pci_cleanup_aer_uncorrect_error_status(pdev);
9164 }
9165
9166 /**
9167  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9168  * @pdev: pointer to PCI device
9169  * @pid: pointer to PCI device identifier
9170  *
9171  * This routine is to be registered to the kernel's PCI subsystem. When an
9172  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9173  * at PCI device-specific information of the device and driver to see if the
9174  * driver state that it can support this kind of device. If the match is
9175  * successful, the driver core invokes this routine. This routine dispatches
9176  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9177  * do all the initialization that it needs to do to handle the HBA device
9178  * properly.
9179  *
9180  * Return code
9181  *      0 - driver can claim the device
9182  *      negative value - driver can not claim the device
9183  **/
9184 static int __devinit
9185 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9186 {
9187         int rc;
9188         struct lpfc_sli_intf intf;
9189
9190         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9191                 return -ENODEV;
9192
9193         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9194             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9195                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9196         else
9197                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9198
9199         return rc;
9200 }
9201
9202 /**
9203  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9204  * @pdev: pointer to PCI device
9205  *
9206  * This routine is to be registered to the kernel's PCI subsystem. When an
9207  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9208  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9209  * remove routine, which will perform all the necessary cleanup for the
9210  * device to be removed from the PCI subsystem properly.
9211  **/
9212 static void __devexit
9213 lpfc_pci_remove_one(struct pci_dev *pdev)
9214 {
9215         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9216         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9217
9218         switch (phba->pci_dev_grp) {
9219         case LPFC_PCI_DEV_LP:
9220                 lpfc_pci_remove_one_s3(pdev);
9221                 break;
9222         case LPFC_PCI_DEV_OC:
9223                 lpfc_pci_remove_one_s4(pdev);
9224                 break;
9225         default:
9226                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9227                                 "1424 Invalid PCI device group: 0x%x\n",
9228                                 phba->pci_dev_grp);
9229                 break;
9230         }
9231         return;
9232 }
9233
9234 /**
9235  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9236  * @pdev: pointer to PCI device
9237  * @msg: power management message
9238  *
9239  * This routine is to be registered to the kernel's PCI subsystem to support
9240  * system Power Management (PM). When PM invokes this method, it dispatches
9241  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9242  * suspend the device.
9243  *
9244  * Return code
9245  *      0 - driver suspended the device
9246  *      Error otherwise
9247  **/
9248 static int
9249 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9250 {
9251         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9252         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9253         int rc = -ENODEV;
9254
9255         switch (phba->pci_dev_grp) {
9256         case LPFC_PCI_DEV_LP:
9257                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9258                 break;
9259         case LPFC_PCI_DEV_OC:
9260                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9261                 break;
9262         default:
9263                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9264                                 "1425 Invalid PCI device group: 0x%x\n",
9265                                 phba->pci_dev_grp);
9266                 break;
9267         }
9268         return rc;
9269 }
9270
9271 /**
9272  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9273  * @pdev: pointer to PCI device
9274  *
9275  * This routine is to be registered to the kernel's PCI subsystem to support
9276  * system Power Management (PM). When PM invokes this method, it dispatches
9277  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9278  * resume the device.
9279  *
9280  * Return code
9281  *      0 - driver suspended the device
9282  *      Error otherwise
9283  **/
9284 static int
9285 lpfc_pci_resume_one(struct pci_dev *pdev)
9286 {
9287         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9288         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9289         int rc = -ENODEV;
9290
9291         switch (phba->pci_dev_grp) {
9292         case LPFC_PCI_DEV_LP:
9293                 rc = lpfc_pci_resume_one_s3(pdev);
9294                 break;
9295         case LPFC_PCI_DEV_OC:
9296                 rc = lpfc_pci_resume_one_s4(pdev);
9297                 break;
9298         default:
9299                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9300                                 "1426 Invalid PCI device group: 0x%x\n",
9301                                 phba->pci_dev_grp);
9302                 break;
9303         }
9304         return rc;
9305 }
9306
9307 /**
9308  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9309  * @pdev: pointer to PCI device.
9310  * @state: the current PCI connection state.
9311  *
9312  * This routine is registered to the PCI subsystem for error handling. This
9313  * function is called by the PCI subsystem after a PCI bus error affecting
9314  * this device has been detected. When this routine is invoked, it dispatches
9315  * the action to the proper SLI-3 or SLI-4 device error detected handling
9316  * routine, which will perform the proper error detected operation.
9317  *
9318  * Return codes
9319  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9320  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9321  **/
9322 static pci_ers_result_t
9323 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9324 {
9325         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9326         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9327         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9328
9329         switch (phba->pci_dev_grp) {
9330         case LPFC_PCI_DEV_LP:
9331                 rc = lpfc_io_error_detected_s3(pdev, state);
9332                 break;
9333         case LPFC_PCI_DEV_OC:
9334                 rc = lpfc_io_error_detected_s4(pdev, state);
9335                 break;
9336         default:
9337                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9338                                 "1427 Invalid PCI device group: 0x%x\n",
9339                                 phba->pci_dev_grp);
9340                 break;
9341         }
9342         return rc;
9343 }
9344
9345 /**
9346  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9347  * @pdev: pointer to PCI device.
9348  *
9349  * This routine is registered to the PCI subsystem for error handling. This
9350  * function is called after PCI bus has been reset to restart the PCI card
9351  * from scratch, as if from a cold-boot. When this routine is invoked, it
9352  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9353  * routine, which will perform the proper device reset.
9354  *
9355  * Return codes
9356  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9357  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9358  **/
9359 static pci_ers_result_t
9360 lpfc_io_slot_reset(struct pci_dev *pdev)
9361 {
9362         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9363         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9364         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9365
9366         switch (phba->pci_dev_grp) {
9367         case LPFC_PCI_DEV_LP:
9368                 rc = lpfc_io_slot_reset_s3(pdev);
9369                 break;
9370         case LPFC_PCI_DEV_OC:
9371                 rc = lpfc_io_slot_reset_s4(pdev);
9372                 break;
9373         default:
9374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9375                                 "1428 Invalid PCI device group: 0x%x\n",
9376                                 phba->pci_dev_grp);
9377                 break;
9378         }
9379         return rc;
9380 }
9381
9382 /**
9383  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9384  * @pdev: pointer to PCI device
9385  *
9386  * This routine is registered to the PCI subsystem for error handling. It
9387  * is called when kernel error recovery tells the lpfc driver that it is
9388  * OK to resume normal PCI operation after PCI bus error recovery. When
9389  * this routine is invoked, it dispatches the action to the proper SLI-3
9390  * or SLI-4 device io_resume routine, which will resume the device operation.
9391  **/
9392 static void
9393 lpfc_io_resume(struct pci_dev *pdev)
9394 {
9395         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9396         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9397
9398         switch (phba->pci_dev_grp) {
9399         case LPFC_PCI_DEV_LP:
9400                 lpfc_io_resume_s3(pdev);
9401                 break;
9402         case LPFC_PCI_DEV_OC:
9403                 lpfc_io_resume_s4(pdev);
9404                 break;
9405         default:
9406                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9407                                 "1429 Invalid PCI device group: 0x%x\n",
9408                                 phba->pci_dev_grp);
9409                 break;
9410         }
9411         return;
9412 }
9413
9414 static struct pci_device_id lpfc_id_table[] = {
9415         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9416                 PCI_ANY_ID, PCI_ANY_ID, },
9417         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9418                 PCI_ANY_ID, PCI_ANY_ID, },
9419         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9420                 PCI_ANY_ID, PCI_ANY_ID, },
9421         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9422                 PCI_ANY_ID, PCI_ANY_ID, },
9423         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9424                 PCI_ANY_ID, PCI_ANY_ID, },
9425         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9426                 PCI_ANY_ID, PCI_ANY_ID, },
9427         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9428                 PCI_ANY_ID, PCI_ANY_ID, },
9429         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9430                 PCI_ANY_ID, PCI_ANY_ID, },
9431         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9432                 PCI_ANY_ID, PCI_ANY_ID, },
9433         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9434                 PCI_ANY_ID, PCI_ANY_ID, },
9435         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9436                 PCI_ANY_ID, PCI_ANY_ID, },
9437         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9438                 PCI_ANY_ID, PCI_ANY_ID, },
9439         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9440                 PCI_ANY_ID, PCI_ANY_ID, },
9441         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9442                 PCI_ANY_ID, PCI_ANY_ID, },
9443         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9444                 PCI_ANY_ID, PCI_ANY_ID, },
9445         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9446                 PCI_ANY_ID, PCI_ANY_ID, },
9447         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9448                 PCI_ANY_ID, PCI_ANY_ID, },
9449         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9450                 PCI_ANY_ID, PCI_ANY_ID, },
9451         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9452                 PCI_ANY_ID, PCI_ANY_ID, },
9453         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9454                 PCI_ANY_ID, PCI_ANY_ID, },
9455         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9456                 PCI_ANY_ID, PCI_ANY_ID, },
9457         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9458                 PCI_ANY_ID, PCI_ANY_ID, },
9459         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9460                 PCI_ANY_ID, PCI_ANY_ID, },
9461         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9462                 PCI_ANY_ID, PCI_ANY_ID, },
9463         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9464                 PCI_ANY_ID, PCI_ANY_ID, },
9465         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9466                 PCI_ANY_ID, PCI_ANY_ID, },
9467         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9468                 PCI_ANY_ID, PCI_ANY_ID, },
9469         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9470                 PCI_ANY_ID, PCI_ANY_ID, },
9471         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9472                 PCI_ANY_ID, PCI_ANY_ID, },
9473         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9474                 PCI_ANY_ID, PCI_ANY_ID, },
9475         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9476                 PCI_ANY_ID, PCI_ANY_ID, },
9477         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9478                 PCI_ANY_ID, PCI_ANY_ID, },
9479         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9480                 PCI_ANY_ID, PCI_ANY_ID, },
9481         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9482                 PCI_ANY_ID, PCI_ANY_ID, },
9483         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9484                 PCI_ANY_ID, PCI_ANY_ID, },
9485         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9486                 PCI_ANY_ID, PCI_ANY_ID, },
9487         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9488                 PCI_ANY_ID, PCI_ANY_ID, },
9489         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9490                 PCI_ANY_ID, PCI_ANY_ID, },
9491         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9492                 PCI_ANY_ID, PCI_ANY_ID, },
9493         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9494                 PCI_ANY_ID, PCI_ANY_ID, },
9495         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9496                 PCI_ANY_ID, PCI_ANY_ID, },
9497         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9498                 PCI_ANY_ID, PCI_ANY_ID, },
9499         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9500                 PCI_ANY_ID, PCI_ANY_ID, },
9501         { 0 }
9502 };
9503
9504 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9505
9506 static struct pci_error_handlers lpfc_err_handler = {
9507         .error_detected = lpfc_io_error_detected,
9508         .slot_reset = lpfc_io_slot_reset,
9509         .resume = lpfc_io_resume,
9510 };
9511
9512 static struct pci_driver lpfc_driver = {
9513         .name           = LPFC_DRIVER_NAME,
9514         .id_table       = lpfc_id_table,
9515         .probe          = lpfc_pci_probe_one,
9516         .remove         = __devexit_p(lpfc_pci_remove_one),
9517         .suspend        = lpfc_pci_suspend_one,
9518         .resume         = lpfc_pci_resume_one,
9519         .err_handler    = &lpfc_err_handler,
9520 };
9521
9522 /**
9523  * lpfc_init - lpfc module initialization routine
9524  *
9525  * This routine is to be invoked when the lpfc module is loaded into the
9526  * kernel. The special kernel macro module_init() is used to indicate the
9527  * role of this routine to the kernel as lpfc module entry point.
9528  *
9529  * Return codes
9530  *   0 - successful
9531  *   -ENOMEM - FC attach transport failed
9532  *   all others - failed
9533  */
9534 static int __init
9535 lpfc_init(void)
9536 {
9537         int error = 0;
9538
9539         printk(LPFC_MODULE_DESC "\n");
9540         printk(LPFC_COPYRIGHT "\n");
9541
9542         if (lpfc_enable_npiv) {
9543                 lpfc_transport_functions.vport_create = lpfc_vport_create;
9544                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9545         }
9546         lpfc_transport_template =
9547                                 fc_attach_transport(&lpfc_transport_functions);
9548         if (lpfc_transport_template == NULL)
9549                 return -ENOMEM;
9550         if (lpfc_enable_npiv) {
9551                 lpfc_vport_transport_template =
9552                         fc_attach_transport(&lpfc_vport_transport_functions);
9553                 if (lpfc_vport_transport_template == NULL) {
9554                         fc_release_transport(lpfc_transport_template);
9555                         return -ENOMEM;
9556                 }
9557         }
9558         error = pci_register_driver(&lpfc_driver);
9559         if (error) {
9560                 fc_release_transport(lpfc_transport_template);
9561                 if (lpfc_enable_npiv)
9562                         fc_release_transport(lpfc_vport_transport_template);
9563         }
9564
9565         return error;
9566 }
9567
9568 /**
9569  * lpfc_exit - lpfc module removal routine
9570  *
9571  * This routine is invoked when the lpfc module is removed from the kernel.
9572  * The special kernel macro module_exit() is used to indicate the role of
9573  * this routine to the kernel as lpfc module exit point.
9574  */
9575 static void __exit
9576 lpfc_exit(void)
9577 {
9578         pci_unregister_driver(&lpfc_driver);
9579         fc_release_transport(lpfc_transport_template);
9580         if (lpfc_enable_npiv)
9581                 fc_release_transport(lpfc_vport_transport_template);
9582         if (_dump_buf_data) {
9583                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9584                                 "_dump_buf_data at 0x%p\n",
9585                                 (1L << _dump_buf_data_order), _dump_buf_data);
9586                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9587         }
9588
9589         if (_dump_buf_dif) {
9590                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9591                                 "_dump_buf_dif at 0x%p\n",
9592                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9593                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9594         }
9595 }
9596
9597 module_init(lpfc_init);
9598 module_exit(lpfc_exit);
9599 MODULE_LICENSE("GPL");
9600 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9601 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9602 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);