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/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35
  36 #include <scsi/scsi.h>
  37 #include <scsi/scsi_device.h>
  38 #include <scsi/scsi_host.h>
  39 #include <scsi/scsi_transport_fc.h>
  40
  41 #include "lpfc_hw4.h"
  42 #include "lpfc_hw.h"
  43 #include "lpfc_sli.h"
  44 #include "lpfc_sli4.h"
  45 #include "lpfc_nl.h"
  46 #include "lpfc_disc.h"
  47 #include "lpfc_scsi.h"
  48 #include "lpfc.h"
  49 #include "lpfc_logmsg.h"
  50 #include "lpfc_crtn.h"
  51 #include "lpfc_vport.h"
  52 #include "lpfc_version.h"
  53
  54 char *_dump_buf_data;
  55 unsigned long _dump_buf_data_order;
  56 char *_dump_buf_dif;
  57 unsigned long _dump_buf_dif_order;
  58 spinlock_t _dump_buf_lock;
  59
  60 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  61 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  62 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  63 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  64 static int lpfc_setup_endian_order(struct lpfc_hba *);
  65 static int lpfc_sli4_read_config(struct lpfc_hba *);
  66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  67 static void lpfc_free_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_sgl_list(struct lpfc_hba *);
  69 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  70 static void lpfc_free_active_sgl(struct lpfc_hba *);
  71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  76
  77 static struct scsi_transport_template *lpfc_transport_template = NULL;
  78 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  79 static DEFINE_IDR(lpfc_hba_index);
  80
  81 /**
  82  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  83  * @phba: pointer to lpfc hba data structure.
  84  *
  85  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  86  * mailbox command. It retrieves the revision information from the HBA and
  87  * collects the Vital Product Data (VPD) about the HBA for preparing the
  88  * configuration of the HBA.
  89  *
  90  * Return codes:
  91  *   0 - success.
  92  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  93  *   Any other value - indicates an error.
  94  **/
  95 int
  96 lpfc_config_port_prep(struct lpfc_hba *phba)
  97 {
  98         lpfc_vpd_t *vp = &phba->vpd;
  99         int i = 0, rc;
 100         LPFC_MBOXQ_t *pmb;
 101         MAILBOX_t *mb;
 102         char *lpfc_vpd_data = NULL;
 103         uint16_t offset = 0;
 104         static char licensed[56] =
 105                     "key unlock for use with gnu public licensed code only\0";
 106         static int init_key = 1;
 107
 108         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 109         if (!pmb) {
 110                 phba->link_state = LPFC_HBA_ERROR;
 111                 return -ENOMEM;
 112         }
 113
 114         mb = &pmb->u.mb;
 115         phba->link_state = LPFC_INIT_MBX_CMDS;
 116
 117         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 118                 if (init_key) {
 119                         uint32_t *ptext = (uint32_t *) licensed;
 120
 121                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 122                                 *ptext = cpu_to_be32(*ptext);
 123                         init_key = 0;
 124                 }
 125
 126                 lpfc_read_nv(phba, pmb);
 127                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 128                         sizeof (mb->un.varRDnvp.rsvd3));
 129                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 130                          sizeof (licensed));
 131
 132                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 133
 134                 if (rc != MBX_SUCCESS) {
 135                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 136                                         "0324 Config Port initialization "
 137                                         "error, mbxCmd x%x READ_NVPARM, "
 138                                         "mbxStatus x%x\n",
 139                                         mb->mbxCommand, mb->mbxStatus);
 140                         mempool_free(pmb, phba->mbox_mem_pool);
 141                         return -ERESTART;
 142                 }
 143                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 144                        sizeof(phba->wwnn));
 145                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 146                        sizeof(phba->wwpn));
 147         }
 148
 149         phba->sli3_options = 0x0;
 150
 151         /* Setup and issue mailbox READ REV command */
 152         lpfc_read_rev(phba, pmb);
 153         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154         if (rc != MBX_SUCCESS) {
 155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 156                                 "0439 Adapter failed to init, mbxCmd x%x "
 157                                 "READ_REV, mbxStatus x%x\n",
 158                                 mb->mbxCommand, mb->mbxStatus);
 159                 mempool_free( pmb, phba->mbox_mem_pool);
 160                 return -ERESTART;
 161         }
 162
 163
 164         /*
 165          * The value of rr must be 1 since the driver set the cv field to 1.
 166          * This setting requires the FW to set all revision fields.
 167          */
 168         if (mb->un.varRdRev.rr == 0) {
 169                 vp->rev.rBit = 0;
 170                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 171                                 "0440 Adapter failed to init, READ_REV has "
 172                                 "missing revision information.\n");
 173                 mempool_free(pmb, phba->mbox_mem_pool);
 174                 return -ERESTART;
 175         }
 176
 177         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 178                 mempool_free(pmb, phba->mbox_mem_pool);
 179                 return -EINVAL;
 180         }
 181
 182         /* Save information as VPD data */
 183         vp->rev.rBit = 1;
 184         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 185         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 186         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 187         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 188         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 189         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 190         vp->rev.smRev = mb->un.varRdRev.smRev;
 191         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 192         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 193         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 194         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 195         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 196         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 197         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 198         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 199
 200         /* If the sli feature level is less then 9, we must
 201          * tear down all RPIs and VPIs on link down if NPIV
 202          * is enabled.
 203          */
 204         if (vp->rev.feaLevelHigh < 9)
 205                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 206
 207         if (lpfc_is_LC_HBA(phba->pcidev->device))
 208                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 209                                                 sizeof (phba->RandomData));
 210
 211         /* Get adapter VPD information */
 212         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 213         if (!lpfc_vpd_data)
 214                 goto out_free_mbox;
 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_update_vport_wwn - Updates the fc_nodename, fc_portname,
 313  *      cfg_soft_wwnn, cfg_soft_wwpn
 314  * @vport: pointer to lpfc vport data structure.
 315  *
 316  *
 317  * Return codes
 318  *   None.
 319  **/
 320 void
 321 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 322 {
 323         /* If the soft name exists then update it using the service params */
 324         if (vport->phba->cfg_soft_wwnn)
 325                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 326                            vport->fc_sparam.nodeName.u.wwn);
 327         if (vport->phba->cfg_soft_wwpn)
 328                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 329                            vport->fc_sparam.portName.u.wwn);
 330
 331         /*
 332          * If the name is empty or there exists a soft name
 333          * then copy the service params name, otherwise use the fc name
 334          */
 335         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 336                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 337                         sizeof(struct lpfc_name));
 338         else
 339                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 340                         sizeof(struct lpfc_name));
 341
 342         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 343                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 347                         sizeof(struct lpfc_name));
 348 }
 349
 350 /**
 351  * lpfc_config_port_post - Perform lpfc initialization after config port
 352  * @phba: pointer to lpfc hba data structure.
 353  *
 354  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 355  * command call. It performs all internal resource and state setups on the
 356  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 357  * ELS ring timers, etc.
 358  *
 359  * Return codes
 360  *   0 - success.
 361  *   Any other value - error.
 362  **/
 363 int
 364 lpfc_config_port_post(struct lpfc_hba *phba)
 365 {
 366         struct lpfc_vport *vport = phba->pport;
 367         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 368         LPFC_MBOXQ_t *pmb;
 369         MAILBOX_t *mb;
 370         struct lpfc_dmabuf *mp;
 371         struct lpfc_sli *psli = &phba->sli;
 372         uint32_t status, timeout;
 373         int i, j;
 374         int rc;
 375
 376         spin_lock_irq(&phba->hbalock);
 377         /*
 378          * If the Config port completed correctly the HBA is not
 379          * over heated any more.
 380          */
 381         if (phba->over_temp_state == HBA_OVER_TEMP)
 382                 phba->over_temp_state = HBA_NORMAL_TEMP;
 383         spin_unlock_irq(&phba->hbalock);
 384
 385         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 386         if (!pmb) {
 387                 phba->link_state = LPFC_HBA_ERROR;
 388                 return -ENOMEM;
 389         }
 390         mb = &pmb->u.mb;
 391
 392         /* Get login parameters for NID.  */
 393         rc = lpfc_read_sparam(phba, pmb, 0);
 394         if (rc) {
 395                 mempool_free(pmb, phba->mbox_mem_pool);
 396                 return -ENOMEM;
 397         }
 398
 399         pmb->vport = vport;
 400         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 402                                 "0448 Adapter failed init, mbxCmd x%x "
 403                                 "READ_SPARM mbxStatus x%x\n",
 404                                 mb->mbxCommand, mb->mbxStatus);
 405                 phba->link_state = LPFC_HBA_ERROR;
 406                 mp = (struct lpfc_dmabuf *) pmb->context1;
 407                 mempool_free(pmb, phba->mbox_mem_pool);
 408                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 409                 kfree(mp);
 410                 return -EIO;
 411         }
 412
 413         mp = (struct lpfc_dmabuf *) pmb->context1;
 414
 415         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 416         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417         kfree(mp);
 418         pmb->context1 = NULL;
 419         lpfc_update_vport_wwn(vport);
 420
 421         /* Update the fc_host data structures with new wwn. */
 422         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 423         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 424         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 425
 426         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 427         /* This should be consolidated into parse_vpd ? - mr */
 428         if (phba->SerialNumber[0] == 0) {
 429                 uint8_t *outptr;
 430
 431                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 432                 for (i = 0; i < 12; i++) {
 433                         status = *outptr++;
 434                         j = ((status & 0xf0) >> 4);
 435                         if (j <= 9)
 436                                 phba->SerialNumber[i] =
 437                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 438                         else
 439                                 phba->SerialNumber[i] =
 440                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 441                         i++;
 442                         j = (status & 0xf);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                 }
 450         }
 451
 452         lpfc_read_config(phba, pmb);
 453         pmb->vport = vport;
 454         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 456                                 "0453 Adapter failed to init, mbxCmd x%x "
 457                                 "READ_CONFIG, mbxStatus x%x\n",
 458                                 mb->mbxCommand, mb->mbxStatus);
 459                 phba->link_state = LPFC_HBA_ERROR;
 460                 mempool_free( pmb, phba->mbox_mem_pool);
 461                 return -EIO;
 462         }
 463
 464         /* Check if the port is disabled */
 465         lpfc_sli_read_link_ste(phba);
 466
 467         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 468         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 469                 phba->cfg_hba_queue_depth =
 470                         (mb->un.varRdConfig.max_xri + 1) -
 471                                         lpfc_sli4_get_els_iocb_cnt(phba);
 472
 473         phba->lmt = mb->un.varRdConfig.lmt;
 474
 475         /* Get the default values for Model Name and Description */
 476         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 477
 478         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
 479             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
 480                 && !(phba->lmt & LMT_1Gb))
 481             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
 482                 && !(phba->lmt & LMT_2Gb))
 483             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
 484                 && !(phba->lmt & LMT_4Gb))
 485             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
 486                 && !(phba->lmt & LMT_8Gb))
 487             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
 488                 && !(phba->lmt & LMT_10Gb))
 489             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
 490                 && !(phba->lmt & LMT_16Gb))) {
 491                 /* Reset link speed to auto */
 492                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 493                         "1302 Invalid speed for this board: "
 494                         "Reset link speed to auto: x%x\n",
 495                         phba->cfg_link_speed);
 496                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 497         }
 498
 499         phba->link_state = LPFC_LINK_DOWN;
 500
 501         /* Only process IOCBs on ELS ring till hba_state is READY */
 502         if (psli->ring[psli->extra_ring].cmdringaddr)
 503                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 504         if (psli->ring[psli->fcp_ring].cmdringaddr)
 505                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 506         if (psli->ring[psli->next_ring].cmdringaddr)
 507                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 508
 509         /* Post receive buffers for desired rings */
 510         if (phba->sli_rev != 3)
 511                 lpfc_post_rcv_buf(phba);
 512
 513         /*
 514          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 515          */
 516         if (phba->intr_type == MSIX) {
 517                 rc = lpfc_config_msi(phba, pmb);
 518                 if (rc) {
 519                         mempool_free(pmb, phba->mbox_mem_pool);
 520                         return -EIO;
 521                 }
 522                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 523                 if (rc != MBX_SUCCESS) {
 524                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 525                                         "0352 Config MSI mailbox command "
 526                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 527                                         pmb->u.mb.mbxCommand,
 528                                         pmb->u.mb.mbxStatus);
 529                         mempool_free(pmb, phba->mbox_mem_pool);
 530                         return -EIO;
 531                 }
 532         }
 533
 534         spin_lock_irq(&phba->hbalock);
 535         /* Initialize ERATT handling flag */
 536         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 537
 538         /* Enable appropriate host interrupts */
 539         if (lpfc_readl(phba->HCregaddr, &status)) {
 540                 spin_unlock_irq(&phba->hbalock);
 541                 return -EIO;
 542         }
 543         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 544         if (psli->num_rings > 0)
 545                 status |= HC_R0INT_ENA;
 546         if (psli->num_rings > 1)
 547                 status |= HC_R1INT_ENA;
 548         if (psli->num_rings > 2)
 549                 status |= HC_R2INT_ENA;
 550         if (psli->num_rings > 3)
 551                 status |= HC_R3INT_ENA;
 552
 553         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 554             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 555                 status &= ~(HC_R0INT_ENA);
 556
 557         writel(status, phba->HCregaddr);
 558         readl(phba->HCregaddr); /* flush */
 559         spin_unlock_irq(&phba->hbalock);
 560
 561         /* Set up ring-0 (ELS) timer */
 562         timeout = phba->fc_ratov * 2;
 563         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 566         phba->hb_outstanding = 0;
 567         phba->last_completion_time = jiffies;
 568         /* Set up error attention (ERATT) polling timer */
 569         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 570
 571         if (phba->hba_flag & LINK_DISABLED) {
 572                 lpfc_printf_log(phba,
 573                         KERN_ERR, LOG_INIT,
 574                         "2598 Adapter Link is disabled.\n");
 575                 lpfc_down_link(phba, pmb);
 576                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 577                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 578                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 579                         lpfc_printf_log(phba,
 580                         KERN_ERR, LOG_INIT,
 581                         "2599 Adapter failed to issue DOWN_LINK"
 582                         " mbox command rc 0x%x\n", rc);
 583
 584                         mempool_free(pmb, phba->mbox_mem_pool);
 585                         return -EIO;
 586                 }
 587         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 588                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 589                         phba->cfg_link_speed);
 590                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 591                 lpfc_set_loopback_flag(phba);
 592                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 593                 if (rc != MBX_SUCCESS) {
 594                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 595                                 "0454 Adapter failed to init, mbxCmd x%x "
 596                                 "INIT_LINK, mbxStatus x%x\n",
 597                                 mb->mbxCommand, mb->mbxStatus);
 598
 599                         /* Clear all interrupt enable conditions */
 600                         writel(0, phba->HCregaddr);
 601                         readl(phba->HCregaddr); /* flush */
 602                         /* Clear all pending interrupts */
 603                         writel(0xffffffff, phba->HAregaddr);
 604                         readl(phba->HAregaddr); /* flush */
 605                         phba->link_state = LPFC_HBA_ERROR;
 606                         if (rc != MBX_BUSY)
 607                                 mempool_free(pmb, phba->mbox_mem_pool);
 608                         return -EIO;
 609                 }
 610         }
 611         /* MBOX buffer will be freed in mbox compl */
 612         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 613         if (!pmb) {
 614                 phba->link_state = LPFC_HBA_ERROR;
 615                 return -ENOMEM;
 616         }
 617
 618         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 619         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 620         pmb->vport = phba->pport;
 621         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 622
 623         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 624                 lpfc_printf_log(phba,
 625                                 KERN_ERR,
 626                                 LOG_INIT,
 627                                 "0456 Adapter failed to issue "
 628                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 629                                 rc);
 630                 mempool_free(pmb, phba->mbox_mem_pool);
 631         }
 632
 633         /* Get Option rom version */
 634         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 635         if (!pmb) {
 636                 phba->link_state = LPFC_HBA_ERROR;
 637                 return -ENOMEM;
 638         }
 639
 640         lpfc_dump_wakeup_param(phba, pmb);
 641         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 642         pmb->vport = phba->pport;
 643         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 644
 645         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 647                                 "to get Option ROM version status x%x\n", rc);
 648                 mempool_free(pmb, phba->mbox_mem_pool);
 649         }
 650
 651         return 0;
 652 }
 653
 654 /**
 655  * lpfc_hba_init_link - Initialize the FC link
 656  * @phba: pointer to lpfc hba data structure.
 657  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 658  *
 659  * This routine will issue the INIT_LINK mailbox command call.
 660  * It is available to other drivers through the lpfc_hba data
 661  * structure for use as a delayed link up mechanism with the
 662  * module parameter lpfc_suppress_link_up.
 663  *
 664  * Return code
 665  *              0 - success
 666  *              Any other value - error
 667  **/
 668 int
 669 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 670 {
 671         struct lpfc_vport *vport = phba->pport;
 672         LPFC_MBOXQ_t *pmb;
 673         MAILBOX_t *mb;
 674         int rc;
 675
 676         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 677         if (!pmb) {
 678                 phba->link_state = LPFC_HBA_ERROR;
 679                 return -ENOMEM;
 680         }
 681         mb = &pmb->u.mb;
 682         pmb->vport = vport;
 683
 684         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 685         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 686         lpfc_set_loopback_flag(phba);
 687         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 688         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 689                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 690                         "0498 Adapter failed to init, mbxCmd x%x "
 691                         "INIT_LINK, mbxStatus x%x\n",
 692                         mb->mbxCommand, mb->mbxStatus);
 693                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 694                         /* Clear all interrupt enable conditions */
 695                         writel(0, phba->HCregaddr);
 696                         readl(phba->HCregaddr); /* flush */
 697                         /* Clear all pending interrupts */
 698                         writel(0xffffffff, phba->HAregaddr);
 699                         readl(phba->HAregaddr); /* flush */
 700                 }
 701                 phba->link_state = LPFC_HBA_ERROR;
 702                 if (rc != MBX_BUSY || flag == MBX_POLL)
 703                         mempool_free(pmb, phba->mbox_mem_pool);
 704                 return -EIO;
 705         }
 706         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 707         if (flag == MBX_POLL)
 708                 mempool_free(pmb, phba->mbox_mem_pool);
 709
 710         return 0;
 711 }
 712
 713 /**
 714  * lpfc_hba_down_link - this routine downs the FC link
 715  * @phba: pointer to lpfc hba data structure.
 716  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 717  *
 718  * This routine will issue the DOWN_LINK mailbox command call.
 719  * It is available to other drivers through the lpfc_hba data
 720  * structure for use to stop the link.
 721  *
 722  * Return code
 723  *              0 - success
 724  *              Any other value - error
 725  **/
 726 int
 727 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 728 {
 729         LPFC_MBOXQ_t *pmb;
 730         int rc;
 731
 732         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 733         if (!pmb) {
 734                 phba->link_state = LPFC_HBA_ERROR;
 735                 return -ENOMEM;
 736         }
 737
 738         lpfc_printf_log(phba,
 739                 KERN_ERR, LOG_INIT,
 740                 "0491 Adapter Link is disabled.\n");
 741         lpfc_down_link(phba, pmb);
 742         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 743         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 744         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 745                 lpfc_printf_log(phba,
 746                 KERN_ERR, LOG_INIT,
 747                 "2522 Adapter failed to issue DOWN_LINK"
 748                 " mbox command rc 0x%x\n", rc);
 749
 750                 mempool_free(pmb, phba->mbox_mem_pool);
 751                 return -EIO;
 752         }
 753         if (flag == MBX_POLL)
 754                 mempool_free(pmb, phba->mbox_mem_pool);
 755
 756         return 0;
 757 }
 758
 759 /**
 760  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 761  * @phba: pointer to lpfc HBA data structure.
 762  *
 763  * This routine will do LPFC uninitialization before the HBA is reset when
 764  * bringing down the SLI Layer.
 765  *
 766  * Return codes
 767  *   0 - success.
 768  *   Any other value - error.
 769  **/
 770 int
 771 lpfc_hba_down_prep(struct lpfc_hba *phba)
 772 {
 773         struct lpfc_vport **vports;
 774         int i;
 775
 776         if (phba->sli_rev <= LPFC_SLI_REV3) {
 777                 /* Disable interrupts */
 778                 writel(0, phba->HCregaddr);
 779                 readl(phba->HCregaddr); /* flush */
 780         }
 781
 782         if (phba->pport->load_flag & FC_UNLOADING)
 783                 lpfc_cleanup_discovery_resources(phba->pport);
 784         else {
 785                 vports = lpfc_create_vport_work_array(phba);
 786                 if (vports != NULL)
 787                         for (i = 0; i <= phba->max_vports &&
 788                                 vports[i] != NULL; i++)
 789                                 lpfc_cleanup_discovery_resources(vports[i]);
 790                 lpfc_destroy_vport_work_array(phba, vports);
 791         }
 792         return 0;
 793 }
 794
 795 /**
 796  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 797  * @phba: pointer to lpfc HBA data structure.
 798  *
 799  * This routine will do uninitialization after the HBA is reset when bring
 800  * down the SLI Layer.
 801  *
 802  * Return codes
 803  *   0 - success.
 804  *   Any other value - error.
 805  **/
 806 static int
 807 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 808 {
 809         struct lpfc_sli *psli = &phba->sli;
 810         struct lpfc_sli_ring *pring;
 811         struct lpfc_dmabuf *mp, *next_mp;
 812         LIST_HEAD(completions);
 813         int i;
 814
 815         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 816                 lpfc_sli_hbqbuf_free_all(phba);
 817         else {
 818                 /* Cleanup preposted buffers on the ELS ring */
 819                 pring = &psli->ring[LPFC_ELS_RING];
 820                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 821                         list_del(&mp->list);
 822                         pring->postbufq_cnt--;
 823                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 824                         kfree(mp);
 825                 }
 826         }
 827
 828         spin_lock_irq(&phba->hbalock);
 829         for (i = 0; i < psli->num_rings; i++) {
 830                 pring = &psli->ring[i];
 831
 832                 /* At this point in time the HBA is either reset or DOA. Either
 833                  * way, nothing should be on txcmplq as it will NEVER complete.
 834                  */
 835                 list_splice_init(&pring->txcmplq, &completions);
 836                 pring->txcmplq_cnt = 0;
 837                 spin_unlock_irq(&phba->hbalock);
 838
 839                 /* Cancel all the IOCBs from the completions list */
 840                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 841                                       IOERR_SLI_ABORTED);
 842
 843                 lpfc_sli_abort_iocb_ring(phba, pring);
 844                 spin_lock_irq(&phba->hbalock);
 845         }
 846         spin_unlock_irq(&phba->hbalock);
 847
 848         return 0;
 849 }
 850
 851 /**
 852  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 853  * @phba: pointer to lpfc HBA data structure.
 854  *
 855  * This routine will do uninitialization after the HBA is reset when bring
 856  * down the SLI Layer.
 857  *
 858  * Return codes
 859  *   0 - success.
 860  *   Any other value - error.
 861  **/
 862 static int
 863 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 864 {
 865         struct lpfc_scsi_buf *psb, *psb_next;
 866         LIST_HEAD(aborts);
 867         int ret;
 868         unsigned long iflag = 0;
 869         struct lpfc_sglq *sglq_entry = NULL;
 870
 871         ret = lpfc_hba_down_post_s3(phba);
 872         if (ret)
 873                 return ret;
 874         /* At this point in time the HBA is either reset or DOA. Either
 875          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 876          * on the lpfc_sgl_list so that it can either be freed if the
 877          * driver is unloading or reposted if the driver is restarting
 878          * the port.
 879          */
 880         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 881                                         /* scsl_buf_list */
 882         /* abts_sgl_list_lock required because worker thread uses this
 883          * list.
 884          */
 885         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 886         list_for_each_entry(sglq_entry,
 887                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 888                 sglq_entry->state = SGL_FREED;
 889
 890         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 891                         &phba->sli4_hba.lpfc_sgl_list);
 892         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 893         /* abts_scsi_buf_list_lock required because worker thread uses this
 894          * list.
 895          */
 896         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 897         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 898                         &aborts);
 899         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 900         spin_unlock_irq(&phba->hbalock);
 901
 902         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 903                 psb->pCmd = NULL;
 904                 psb->status = IOSTAT_SUCCESS;
 905         }
 906         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 907         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 908         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 909         return 0;
 910 }
 911
 912 /**
 913  * lpfc_hba_down_post - Wrapper func for hba down post routine
 914  * @phba: pointer to lpfc HBA data structure.
 915  *
 916  * This routine wraps the actual SLI3 or SLI4 routine for performing
 917  * uninitialization after the HBA is reset when bring down the SLI Layer.
 918  *
 919  * Return codes
 920  *   0 - success.
 921  *   Any other value - error.
 922  **/
 923 int
 924 lpfc_hba_down_post(struct lpfc_hba *phba)
 925 {
 926         return (*phba->lpfc_hba_down_post)(phba);
 927 }
 928
 929 /**
 930  * lpfc_hb_timeout - The HBA-timer timeout handler
 931  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 932  *
 933  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 934  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 935  * work-port-events bitmap and the worker thread is notified. This timeout
 936  * event will be used by the worker thread to invoke the actual timeout
 937  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 938  * be performed in the timeout handler and the HBA timeout event bit shall
 939  * be cleared by the worker thread after it has taken the event bitmap out.
 940  **/
 941 static void
 942 lpfc_hb_timeout(unsigned long ptr)
 943 {
 944         struct lpfc_hba *phba;
 945         uint32_t tmo_posted;
 946         unsigned long iflag;
 947
 948         phba = (struct lpfc_hba *)ptr;
 949
 950         /* Check for heart beat timeout conditions */
 951         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 952         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 953         if (!tmo_posted)
 954                 phba->pport->work_port_events |= WORKER_HB_TMO;
 955         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 956
 957         /* Tell the worker thread there is work to do */
 958         if (!tmo_posted)
 959                 lpfc_worker_wake_up(phba);
 960         return;
 961 }
 962
 963 /**
 964  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 965  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 966  *
 967  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 968  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 969  * work-port-events bitmap and the worker thread is notified. This timeout
 970  * event will be used by the worker thread to invoke the actual timeout
 971  * handler routine, lpfc_rrq_handler. Any periodical operations will
 972  * be performed in the timeout handler and the RRQ timeout event bit shall
 973  * be cleared by the worker thread after it has taken the event bitmap out.
 974  **/
 975 static void
 976 lpfc_rrq_timeout(unsigned long ptr)
 977 {
 978         struct lpfc_hba *phba;
 979         unsigned long iflag;
 980
 981         phba = (struct lpfc_hba *)ptr;
 982         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 983         phba->hba_flag |= HBA_RRQ_ACTIVE;
 984         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 985         lpfc_worker_wake_up(phba);
 986 }
 987
 988 /**
 989  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 990  * @phba: pointer to lpfc hba data structure.
 991  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 992  *
 993  * This is the callback function to the lpfc heart-beat mailbox command.
 994  * If configured, the lpfc driver issues the heart-beat mailbox command to
 995  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 996  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 997  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 998  * heart-beat outstanding state. Once the mailbox command comes back and
 999  * no error conditions detected, the heart-beat mailbox command timer is
1000  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1001  * state is cleared for the next heart-beat. If the timer expired with the
1002  * heart-beat outstanding state set, the driver will put the HBA offline.
1003  **/
1004 static void
1005 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1006 {
1007         unsigned long drvr_flag;
1008
1009         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1010         phba->hb_outstanding = 0;
1011         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1012
1013         /* Check and reset heart-beat timer is necessary */
1014         mempool_free(pmboxq, phba->mbox_mem_pool);
1015         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1016                 !(phba->link_state == LPFC_HBA_ERROR) &&
1017                 !(phba->pport->load_flag & FC_UNLOADING))
1018                 mod_timer(&phba->hb_tmofunc,
1019                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1020         return;
1021 }
1022
1023 /**
1024  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1025  * @phba: pointer to lpfc hba data structure.
1026  *
1027  * This is the actual HBA-timer timeout handler to be invoked by the worker
1028  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1029  * handler performs any periodic operations needed for the device. If such
1030  * periodic event has already been attended to either in the interrupt handler
1031  * or by processing slow-ring or fast-ring events within the HBA-timer
1032  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1033  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1034  * is configured and there is no heart-beat mailbox command outstanding, a
1035  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1036  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1037  * to offline.
1038  **/
1039 void
1040 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1041 {
1042         struct lpfc_vport **vports;
1043         LPFC_MBOXQ_t *pmboxq;
1044         struct lpfc_dmabuf *buf_ptr;
1045         int retval, i;
1046         struct lpfc_sli *psli = &phba->sli;
1047         LIST_HEAD(completions);
1048
1049         vports = lpfc_create_vport_work_array(phba);
1050         if (vports != NULL)
1051                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1052                         lpfc_rcv_seq_check_edtov(vports[i]);
1053         lpfc_destroy_vport_work_array(phba, vports);
1054
1055         if ((phba->link_state == LPFC_HBA_ERROR) ||
1056                 (phba->pport->load_flag & FC_UNLOADING) ||
1057                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1058                 return;
1059
1060         spin_lock_irq(&phba->pport->work_port_lock);
1061
1062         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1063                 jiffies)) {
1064                 spin_unlock_irq(&phba->pport->work_port_lock);
1065                 if (!phba->hb_outstanding)
1066                         mod_timer(&phba->hb_tmofunc,
1067                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1068                 else
1069                         mod_timer(&phba->hb_tmofunc,
1070                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1071                 return;
1072         }
1073         spin_unlock_irq(&phba->pport->work_port_lock);
1074
1075         if (phba->elsbuf_cnt &&
1076                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1077                 spin_lock_irq(&phba->hbalock);
1078                 list_splice_init(&phba->elsbuf, &completions);
1079                 phba->elsbuf_cnt = 0;
1080                 phba->elsbuf_prev_cnt = 0;
1081                 spin_unlock_irq(&phba->hbalock);
1082
1083                 while (!list_empty(&completions)) {
1084                         list_remove_head(&completions, buf_ptr,
1085                                 struct lpfc_dmabuf, list);
1086                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1087                         kfree(buf_ptr);
1088                 }
1089         }
1090         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1091
1092         /* If there is no heart beat outstanding, issue a heartbeat command */
1093         if (phba->cfg_enable_hba_heartbeat) {
1094                 if (!phba->hb_outstanding) {
1095                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1096                                 (list_empty(&psli->mboxq))) {
1097                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1098                                                         GFP_KERNEL);
1099                                 if (!pmboxq) {
1100                                         mod_timer(&phba->hb_tmofunc,
1101                                                  jiffies +
1102                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1103                                         return;
1104                                 }
1105
1106                                 lpfc_heart_beat(phba, pmboxq);
1107                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1108                                 pmboxq->vport = phba->pport;
1109                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1110                                                 MBX_NOWAIT);
1111
1112                                 if (retval != MBX_BUSY &&
1113                                         retval != MBX_SUCCESS) {
1114                                         mempool_free(pmboxq,
1115                                                         phba->mbox_mem_pool);
1116                                         mod_timer(&phba->hb_tmofunc,
1117                                                 jiffies +
1118                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1119                                         return;
1120                                 }
1121                                 phba->skipped_hb = 0;
1122                                 phba->hb_outstanding = 1;
1123                         } else if (time_before_eq(phba->last_completion_time,
1124                                         phba->skipped_hb)) {
1125                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1126                                         "2857 Last completion time not "
1127                                         " updated in %d ms\n",
1128                                         jiffies_to_msecs(jiffies
1129                                                  - phba->last_completion_time));
1130                         } else
1131                                 phba->skipped_hb = jiffies;
1132
1133                         mod_timer(&phba->hb_tmofunc,
1134                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1135                         return;
1136                 } else {
1137                         /*
1138                         * If heart beat timeout called with hb_outstanding set
1139                         * we need to give the hb mailbox cmd a chance to
1140                         * complete or TMO.
1141                         */
1142                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1143                                         "0459 Adapter heartbeat still out"
1144                                         "standing:last compl time was %d ms.\n",
1145                                         jiffies_to_msecs(jiffies
1146                                                  - phba->last_completion_time));
1147                         mod_timer(&phba->hb_tmofunc,
1148                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1149                 }
1150         }
1151 }
1152
1153 /**
1154  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1155  * @phba: pointer to lpfc hba data structure.
1156  *
1157  * This routine is called to bring the HBA offline when HBA hardware error
1158  * other than Port Error 6 has been detected.
1159  **/
1160 static void
1161 lpfc_offline_eratt(struct lpfc_hba *phba)
1162 {
1163         struct lpfc_sli   *psli = &phba->sli;
1164
1165         spin_lock_irq(&phba->hbalock);
1166         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1167         spin_unlock_irq(&phba->hbalock);
1168         lpfc_offline_prep(phba);
1169
1170         lpfc_offline(phba);
1171         lpfc_reset_barrier(phba);
1172         spin_lock_irq(&phba->hbalock);
1173         lpfc_sli_brdreset(phba);
1174         spin_unlock_irq(&phba->hbalock);
1175         lpfc_hba_down_post(phba);
1176         lpfc_sli_brdready(phba, HS_MBRDY);
1177         lpfc_unblock_mgmt_io(phba);
1178         phba->link_state = LPFC_HBA_ERROR;
1179         return;
1180 }
1181
1182 /**
1183  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1184  * @phba: pointer to lpfc hba data structure.
1185  *
1186  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1187  * other than Port Error 6 has been detected.
1188  **/
1189 static void
1190 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1191 {
1192         lpfc_offline_prep(phba);
1193         lpfc_offline(phba);
1194         lpfc_sli4_brdreset(phba);
1195         lpfc_hba_down_post(phba);
1196         lpfc_sli4_post_status_check(phba);
1197         lpfc_unblock_mgmt_io(phba);
1198         phba->link_state = LPFC_HBA_ERROR;
1199 }
1200
1201 /**
1202  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1203  * @phba: pointer to lpfc hba data structure.
1204  *
1205  * This routine is invoked to handle the deferred HBA hardware error
1206  * conditions. This type of error is indicated by HBA by setting ER1
1207  * and another ER bit in the host status register. The driver will
1208  * wait until the ER1 bit clears before handling the error condition.
1209  **/
1210 static void
1211 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1212 {
1213         uint32_t old_host_status = phba->work_hs;
1214         struct lpfc_sli_ring  *pring;
1215         struct lpfc_sli *psli = &phba->sli;
1216
1217         /* If the pci channel is offline, ignore possible errors,
1218          * since we cannot communicate with the pci card anyway.
1219          */
1220         if (pci_channel_offline(phba->pcidev)) {
1221                 spin_lock_irq(&phba->hbalock);
1222                 phba->hba_flag &= ~DEFER_ERATT;
1223                 spin_unlock_irq(&phba->hbalock);
1224                 return;
1225         }
1226
1227         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1228                 "0479 Deferred Adapter Hardware Error "
1229                 "Data: x%x x%x x%x\n",
1230                 phba->work_hs,
1231                 phba->work_status[0], phba->work_status[1]);
1232
1233         spin_lock_irq(&phba->hbalock);
1234         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1235         spin_unlock_irq(&phba->hbalock);
1236
1237
1238         /*
1239          * Firmware stops when it triggred erratt. That could cause the I/Os
1240          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1241          * SCSI layer retry it after re-establishing link.
1242          */
1243         pring = &psli->ring[psli->fcp_ring];
1244         lpfc_sli_abort_iocb_ring(phba, pring);
1245
1246         /*
1247          * There was a firmware error. Take the hba offline and then
1248          * attempt to restart it.
1249          */
1250         lpfc_offline_prep(phba);
1251         lpfc_offline(phba);
1252
1253         /* Wait for the ER1 bit to clear.*/
1254         while (phba->work_hs & HS_FFER1) {
1255                 msleep(100);
1256                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1257                         phba->work_hs = UNPLUG_ERR ;
1258                         break;
1259                 }
1260                 /* If driver is unloading let the worker thread continue */
1261                 if (phba->pport->load_flag & FC_UNLOADING) {
1262                         phba->work_hs = 0;
1263                         break;
1264                 }
1265         }
1266
1267         /*
1268          * This is to ptrotect against a race condition in which
1269          * first write to the host attention register clear the
1270          * host status register.
1271          */
1272         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1273                 phba->work_hs = old_host_status & ~HS_FFER1;
1274
1275         spin_lock_irq(&phba->hbalock);
1276         phba->hba_flag &= ~DEFER_ERATT;
1277         spin_unlock_irq(&phba->hbalock);
1278         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1279         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1280 }
1281
1282 static void
1283 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1284 {
1285         struct lpfc_board_event_header board_event;
1286         struct Scsi_Host *shost;
1287
1288         board_event.event_type = FC_REG_BOARD_EVENT;
1289         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1290         shost = lpfc_shost_from_vport(phba->pport);
1291         fc_host_post_vendor_event(shost, fc_get_event_number(),
1292                                   sizeof(board_event),
1293                                   (char *) &board_event,
1294                                   LPFC_NL_VENDOR_ID);
1295 }
1296
1297 /**
1298  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1299  * @phba: pointer to lpfc hba data structure.
1300  *
1301  * This routine is invoked to handle the following HBA hardware error
1302  * conditions:
1303  * 1 - HBA error attention interrupt
1304  * 2 - DMA ring index out of range
1305  * 3 - Mailbox command came back as unknown
1306  **/
1307 static void
1308 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1309 {
1310         struct lpfc_vport *vport = phba->pport;
1311         struct lpfc_sli   *psli = &phba->sli;
1312         struct lpfc_sli_ring  *pring;
1313         uint32_t event_data;
1314         unsigned long temperature;
1315         struct temp_event temp_event_data;
1316         struct Scsi_Host  *shost;
1317
1318         /* If the pci channel is offline, ignore possible errors,
1319          * since we cannot communicate with the pci card anyway.
1320          */
1321         if (pci_channel_offline(phba->pcidev)) {
1322                 spin_lock_irq(&phba->hbalock);
1323                 phba->hba_flag &= ~DEFER_ERATT;
1324                 spin_unlock_irq(&phba->hbalock);
1325                 return;
1326         }
1327
1328         /* If resets are disabled then leave the HBA alone and return */
1329         if (!phba->cfg_enable_hba_reset)
1330                 return;
1331
1332         /* Send an internal error event to mgmt application */
1333         lpfc_board_errevt_to_mgmt(phba);
1334
1335         if (phba->hba_flag & DEFER_ERATT)
1336                 lpfc_handle_deferred_eratt(phba);
1337
1338         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1339                 if (phba->work_hs & HS_FFER6)
1340                         /* Re-establishing Link */
1341                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1342                                         "1301 Re-establishing Link "
1343                                         "Data: x%x x%x x%x\n",
1344                                         phba->work_hs, phba->work_status[0],
1345                                         phba->work_status[1]);
1346                 if (phba->work_hs & HS_FFER8)
1347                         /* Device Zeroization */
1348                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1349                                         "2861 Host Authentication device "
1350                                         "zeroization Data:x%x x%x x%x\n",
1351                                         phba->work_hs, phba->work_status[0],
1352                                         phba->work_status[1]);
1353
1354                 spin_lock_irq(&phba->hbalock);
1355                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1356                 spin_unlock_irq(&phba->hbalock);
1357
1358                 /*
1359                 * Firmware stops when it triggled erratt with HS_FFER6.
1360                 * That could cause the I/Os dropped by the firmware.
1361                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1362                 * retry it after re-establishing link.
1363                 */
1364                 pring = &psli->ring[psli->fcp_ring];
1365                 lpfc_sli_abort_iocb_ring(phba, pring);
1366
1367                 /*
1368                  * There was a firmware error.  Take the hba offline and then
1369                  * attempt to restart it.
1370                  */
1371                 lpfc_offline_prep(phba);
1372                 lpfc_offline(phba);
1373                 lpfc_sli_brdrestart(phba);
1374                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1375                         lpfc_unblock_mgmt_io(phba);
1376                         return;
1377                 }
1378                 lpfc_unblock_mgmt_io(phba);
1379         } else if (phba->work_hs & HS_CRIT_TEMP) {
1380                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1381                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1382                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1383                 temp_event_data.data = (uint32_t)temperature;
1384
1385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1386                                 "0406 Adapter maximum temperature exceeded "
1387                                 "(%ld), taking this port offline "
1388                                 "Data: x%x x%x x%x\n",
1389                                 temperature, phba->work_hs,
1390                                 phba->work_status[0], phba->work_status[1]);
1391
1392                 shost = lpfc_shost_from_vport(phba->pport);
1393                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1394                                           sizeof(temp_event_data),
1395                                           (char *) &temp_event_data,
1396                                           SCSI_NL_VID_TYPE_PCI
1397                                           | PCI_VENDOR_ID_EMULEX);
1398
1399                 spin_lock_irq(&phba->hbalock);
1400                 phba->over_temp_state = HBA_OVER_TEMP;
1401                 spin_unlock_irq(&phba->hbalock);
1402                 lpfc_offline_eratt(phba);
1403
1404         } else {
1405                 /* The if clause above forces this code path when the status
1406                  * failure is a value other than FFER6. Do not call the offline
1407                  * twice. This is the adapter hardware error path.
1408                  */
1409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1410                                 "0457 Adapter Hardware Error "
1411                                 "Data: x%x x%x x%x\n",
1412                                 phba->work_hs,
1413                                 phba->work_status[0], phba->work_status[1]);
1414
1415                 event_data = FC_REG_DUMP_EVENT;
1416                 shost = lpfc_shost_from_vport(vport);
1417                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1418                                 sizeof(event_data), (char *) &event_data,
1419                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1420
1421                 lpfc_offline_eratt(phba);
1422         }
1423         return;
1424 }
1425
1426 /**
1427  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1428  * @phba: pointer to lpfc hba data structure.
1429  *
1430  * This routine is invoked to handle the SLI4 HBA hardware error attention
1431  * conditions.
1432  **/
1433 static void
1434 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1435 {
1436         struct lpfc_vport *vport = phba->pport;
1437         uint32_t event_data;
1438         struct Scsi_Host *shost;
1439         uint32_t if_type;
1440         struct lpfc_register portstat_reg;
1441         int rc;
1442
1443         /* If the pci channel is offline, ignore possible errors, since
1444          * we cannot communicate with the pci card anyway.
1445          */
1446         if (pci_channel_offline(phba->pcidev))
1447                 return;
1448         /* If resets are disabled then leave the HBA alone and return */
1449         if (!phba->cfg_enable_hba_reset)
1450                 return;
1451
1452         /* Send an internal error event to mgmt application */
1453         lpfc_board_errevt_to_mgmt(phba);
1454
1455         /* For now, the actual action for SLI4 device handling is not
1456          * specified yet, just treated it as adaptor hardware failure
1457          */
1458         event_data = FC_REG_DUMP_EVENT;
1459         shost = lpfc_shost_from_vport(vport);
1460         fc_host_post_vendor_event(shost, fc_get_event_number(),
1461                                   sizeof(event_data), (char *) &event_data,
1462                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1463
1464         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1465         switch (if_type) {
1466         case LPFC_SLI_INTF_IF_TYPE_0:
1467                 lpfc_sli4_offline_eratt(phba);
1468                 break;
1469         case LPFC_SLI_INTF_IF_TYPE_2:
1470                 portstat_reg.word0 =
1471                         readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1472
1473                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1474                         /* TODO: Register for Overtemp async events. */
1475                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1476                                 "2889 Port Overtemperature event, "
1477                                 "taking port\n");
1478                         spin_lock_irq(&phba->hbalock);
1479                         phba->over_temp_state = HBA_OVER_TEMP;
1480                         spin_unlock_irq(&phba->hbalock);
1481                         lpfc_sli4_offline_eratt(phba);
1482                         return;
1483                 }
1484                 /*
1485                  * On error status condition, driver need to wait for port
1486                  * ready before performing reset.
1487                  */
1488                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1489                 if (!rc) {
1490                         /* need reset: attempt for port recovery */
1491                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1492                                         "2887 Port Error: Attempting "
1493                                         "Port Recovery\n");
1494                         lpfc_offline_prep(phba);
1495                         lpfc_offline(phba);
1496                         lpfc_sli_brdrestart(phba);
1497                         if (lpfc_online(phba) == 0) {
1498                                 lpfc_unblock_mgmt_io(phba);
1499                                 return;
1500                         }
1501                         /* fall through for not able to recover */
1502                 }
1503                 lpfc_sli4_offline_eratt(phba);
1504                 break;
1505         case LPFC_SLI_INTF_IF_TYPE_1:
1506         default:
1507                 break;
1508         }
1509 }
1510
1511 /**
1512  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1513  * @phba: pointer to lpfc HBA data structure.
1514  *
1515  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1516  * routine from the API jump table function pointer from the lpfc_hba struct.
1517  *
1518  * Return codes
1519  *   0 - success.
1520  *   Any other value - error.
1521  **/
1522 void
1523 lpfc_handle_eratt(struct lpfc_hba *phba)
1524 {
1525         (*phba->lpfc_handle_eratt)(phba);
1526 }
1527
1528 /**
1529  * lpfc_handle_latt - The HBA link event handler
1530  * @phba: pointer to lpfc hba data structure.
1531  *
1532  * This routine is invoked from the worker thread to handle a HBA host
1533  * attention link event.
1534  **/
1535 void
1536 lpfc_handle_latt(struct lpfc_hba *phba)
1537 {
1538         struct lpfc_vport *vport = phba->pport;
1539         struct lpfc_sli   *psli = &phba->sli;
1540         LPFC_MBOXQ_t *pmb;
1541         volatile uint32_t control;
1542         struct lpfc_dmabuf *mp;
1543         int rc = 0;
1544
1545         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1546         if (!pmb) {
1547                 rc = 1;
1548                 goto lpfc_handle_latt_err_exit;
1549         }
1550
1551         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1552         if (!mp) {
1553                 rc = 2;
1554                 goto lpfc_handle_latt_free_pmb;
1555         }
1556
1557         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1558         if (!mp->virt) {
1559                 rc = 3;
1560                 goto lpfc_handle_latt_free_mp;
1561         }
1562
1563         /* Cleanup any outstanding ELS commands */
1564         lpfc_els_flush_all_cmd(phba);
1565
1566         psli->slistat.link_event++;
1567         lpfc_read_topology(phba, pmb, mp);
1568         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1569         pmb->vport = vport;
1570         /* Block ELS IOCBs until we have processed this mbox command */
1571         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1572         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1573         if (rc == MBX_NOT_FINISHED) {
1574                 rc = 4;
1575                 goto lpfc_handle_latt_free_mbuf;
1576         }
1577
1578         /* Clear Link Attention in HA REG */
1579         spin_lock_irq(&phba->hbalock);
1580         writel(HA_LATT, phba->HAregaddr);
1581         readl(phba->HAregaddr); /* flush */
1582         spin_unlock_irq(&phba->hbalock);
1583
1584         return;
1585
1586 lpfc_handle_latt_free_mbuf:
1587         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1588         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1589 lpfc_handle_latt_free_mp:
1590         kfree(mp);
1591 lpfc_handle_latt_free_pmb:
1592         mempool_free(pmb, phba->mbox_mem_pool);
1593 lpfc_handle_latt_err_exit:
1594         /* Enable Link attention interrupts */
1595         spin_lock_irq(&phba->hbalock);
1596         psli->sli_flag |= LPFC_PROCESS_LA;
1597         control = readl(phba->HCregaddr);
1598         control |= HC_LAINT_ENA;
1599         writel(control, phba->HCregaddr);
1600         readl(phba->HCregaddr); /* flush */
1601
1602         /* Clear Link Attention in HA REG */
1603         writel(HA_LATT, phba->HAregaddr);
1604         readl(phba->HAregaddr); /* flush */
1605         spin_unlock_irq(&phba->hbalock);
1606         lpfc_linkdown(phba);
1607         phba->link_state = LPFC_HBA_ERROR;
1608
1609         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1610                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1611
1612         return;
1613 }
1614
1615 /**
1616  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1617  * @phba: pointer to lpfc hba data structure.
1618  * @vpd: pointer to the vital product data.
1619  * @len: length of the vital product data in bytes.
1620  *
1621  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1622  * an array of characters. In this routine, the ModelName, ProgramType, and
1623  * ModelDesc, etc. fields of the phba data structure will be populated.
1624  *
1625  * Return codes
1626  *   0 - pointer to the VPD passed in is NULL
1627  *   1 - success
1628  **/
1629 int
1630 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1631 {
1632         uint8_t lenlo, lenhi;
1633         int Length;
1634         int i, j;
1635         int finished = 0;
1636         int index = 0;
1637
1638         if (!vpd)
1639                 return 0;
1640
1641         /* Vital Product */
1642         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1643                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1644                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1645                         (uint32_t) vpd[3]);
1646         while (!finished && (index < (len - 4))) {
1647                 switch (vpd[index]) {
1648                 case 0x82:
1649                 case 0x91:
1650                         index += 1;
1651                         lenlo = vpd[index];
1652                         index += 1;
1653                         lenhi = vpd[index];
1654                         index += 1;
1655                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1656                         index += i;
1657                         break;
1658                 case 0x90:
1659                         index += 1;
1660                         lenlo = vpd[index];
1661                         index += 1;
1662                         lenhi = vpd[index];
1663                         index += 1;
1664                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1665                         if (Length > len - index)
1666                                 Length = len - index;
1667                         while (Length > 0) {
1668                         /* Look for Serial Number */
1669                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1670                                 index += 2;
1671                                 i = vpd[index];
1672                                 index += 1;
1673                                 j = 0;
1674                                 Length -= (3+i);
1675                                 while(i--) {
1676                                         phba->SerialNumber[j++] = vpd[index++];
1677                                         if (j == 31)
1678                                                 break;
1679                                 }
1680                                 phba->SerialNumber[j] = 0;
1681                                 continue;
1682                         }
1683                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1684                                 phba->vpd_flag |= VPD_MODEL_DESC;
1685                                 index += 2;
1686                                 i = vpd[index];
1687                                 index += 1;
1688                                 j = 0;
1689                                 Length -= (3+i);
1690                                 while(i--) {
1691                                         phba->ModelDesc[j++] = vpd[index++];
1692                                         if (j == 255)
1693                                                 break;
1694                                 }
1695                                 phba->ModelDesc[j] = 0;
1696                                 continue;
1697                         }
1698                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1699                                 phba->vpd_flag |= VPD_MODEL_NAME;
1700                                 index += 2;
1701                                 i = vpd[index];
1702                                 index += 1;
1703                                 j = 0;
1704                                 Length -= (3+i);
1705                                 while(i--) {
1706                                         phba->ModelName[j++] = vpd[index++];
1707                                         if (j == 79)
1708                                                 break;
1709                                 }
1710                                 phba->ModelName[j] = 0;
1711                                 continue;
1712                         }
1713                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1714                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1715                                 index += 2;
1716                                 i = vpd[index];
1717                                 index += 1;
1718                                 j = 0;
1719                                 Length -= (3+i);
1720                                 while(i--) {
1721                                         phba->ProgramType[j++] = vpd[index++];
1722                                         if (j == 255)
1723                                                 break;
1724                                 }
1725                                 phba->ProgramType[j] = 0;
1726                                 continue;
1727                         }
1728                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1729                                 phba->vpd_flag |= VPD_PORT;
1730                                 index += 2;
1731                                 i = vpd[index];
1732                                 index += 1;
1733                                 j = 0;
1734                                 Length -= (3+i);
1735                                 while(i--) {
1736                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1737                                             (phba->sli4_hba.pport_name_sta ==
1738                                              LPFC_SLI4_PPNAME_GET)) {
1739                                                 j++;
1740                                                 index++;
1741                                         } else
1742                                                 phba->Port[j++] = vpd[index++];
1743                                         if (j == 19)
1744                                                 break;
1745                                 }
1746                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1747                                     (phba->sli4_hba.pport_name_sta ==
1748                                      LPFC_SLI4_PPNAME_NON))
1749                                         phba->Port[j] = 0;
1750                                 continue;
1751                         }
1752                         else {
1753                                 index += 2;
1754                                 i = vpd[index];
1755                                 index += 1;
1756                                 index += i;
1757                                 Length -= (3 + i);
1758                         }
1759                 }
1760                 finished = 0;
1761                 break;
1762                 case 0x78:
1763                         finished = 1;
1764                         break;
1765                 default:
1766                         index ++;
1767                         break;
1768                 }
1769         }
1770
1771         return(1);
1772 }
1773
1774 /**
1775  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1776  * @phba: pointer to lpfc hba data structure.
1777  * @mdp: pointer to the data structure to hold the derived model name.
1778  * @descp: pointer to the data structure to hold the derived description.
1779  *
1780  * This routine retrieves HBA's description based on its registered PCI device
1781  * ID. The @descp passed into this function points to an array of 256 chars. It
1782  * shall be returned with the model name, maximum speed, and the host bus type.
1783  * The @mdp passed into this function points to an array of 80 chars. When the
1784  * function returns, the @mdp will be filled with the model name.
1785  **/
1786 static void
1787 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1788 {
1789         lpfc_vpd_t *vp;
1790         uint16_t dev_id = phba->pcidev->device;
1791         int max_speed;
1792         int GE = 0;
1793         int oneConnect = 0; /* default is not a oneConnect */
1794         struct {
1795                 char *name;
1796                 char *bus;
1797                 char *function;
1798         } m = {"<Unknown>", "", ""};
1799
1800         if (mdp && mdp[0] != '\0'
1801                 && descp && descp[0] != '\0')
1802                 return;
1803
1804         if (phba->lmt & LMT_16Gb)
1805                 max_speed = 16;
1806         else if (phba->lmt & LMT_10Gb)
1807                 max_speed = 10;
1808         else if (phba->lmt & LMT_8Gb)
1809                 max_speed = 8;
1810         else if (phba->lmt & LMT_4Gb)
1811                 max_speed = 4;
1812         else if (phba->lmt & LMT_2Gb)
1813                 max_speed = 2;
1814         else
1815                 max_speed = 1;
1816
1817         vp = &phba->vpd;
1818
1819         switch (dev_id) {
1820         case PCI_DEVICE_ID_FIREFLY:
1821                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1822                 break;
1823         case PCI_DEVICE_ID_SUPERFLY:
1824                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1825                         m = (typeof(m)){"LP7000", "PCI",
1826                                         "Fibre Channel Adapter"};
1827                 else
1828                         m = (typeof(m)){"LP7000E", "PCI",
1829                                         "Fibre Channel Adapter"};
1830                 break;
1831         case PCI_DEVICE_ID_DRAGONFLY:
1832                 m = (typeof(m)){"LP8000", "PCI",
1833                                 "Fibre Channel Adapter"};
1834                 break;
1835         case PCI_DEVICE_ID_CENTAUR:
1836                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1837                         m = (typeof(m)){"LP9002", "PCI",
1838                                         "Fibre Channel Adapter"};
1839                 else
1840                         m = (typeof(m)){"LP9000", "PCI",
1841                                         "Fibre Channel Adapter"};
1842                 break;
1843         case PCI_DEVICE_ID_RFLY:
1844                 m = (typeof(m)){"LP952", "PCI",
1845                                 "Fibre Channel Adapter"};
1846                 break;
1847         case PCI_DEVICE_ID_PEGASUS:
1848                 m = (typeof(m)){"LP9802", "PCI-X",
1849                                 "Fibre Channel Adapter"};
1850                 break;
1851         case PCI_DEVICE_ID_THOR:
1852                 m = (typeof(m)){"LP10000", "PCI-X",
1853                                 "Fibre Channel Adapter"};
1854                 break;
1855         case PCI_DEVICE_ID_VIPER:
1856                 m = (typeof(m)){"LPX1000",  "PCI-X",
1857                                 "Fibre Channel Adapter"};
1858                 break;
1859         case PCI_DEVICE_ID_PFLY:
1860                 m = (typeof(m)){"LP982", "PCI-X",
1861                                 "Fibre Channel Adapter"};
1862                 break;
1863         case PCI_DEVICE_ID_TFLY:
1864                 m = (typeof(m)){"LP1050", "PCI-X",
1865                                 "Fibre Channel Adapter"};
1866                 break;
1867         case PCI_DEVICE_ID_HELIOS:
1868                 m = (typeof(m)){"LP11000", "PCI-X2",
1869                                 "Fibre Channel Adapter"};
1870                 break;
1871         case PCI_DEVICE_ID_HELIOS_SCSP:
1872                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1873                                 "Fibre Channel Adapter"};
1874                 break;
1875         case PCI_DEVICE_ID_HELIOS_DCSP:
1876                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1877                                 "Fibre Channel Adapter"};
1878                 break;
1879         case PCI_DEVICE_ID_NEPTUNE:
1880                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1881                 break;
1882         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1883                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1884                 break;
1885         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1886                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1887                 break;
1888         case PCI_DEVICE_ID_BMID:
1889                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1890                 break;
1891         case PCI_DEVICE_ID_BSMB:
1892                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1893                 break;
1894         case PCI_DEVICE_ID_ZEPHYR:
1895                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1896                 break;
1897         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1898                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1899                 break;
1900         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1901                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1902                 GE = 1;
1903                 break;
1904         case PCI_DEVICE_ID_ZMID:
1905                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1906                 break;
1907         case PCI_DEVICE_ID_ZSMB:
1908                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1909                 break;
1910         case PCI_DEVICE_ID_LP101:
1911                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1912                 break;
1913         case PCI_DEVICE_ID_LP10000S:
1914                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1915                 break;
1916         case PCI_DEVICE_ID_LP11000S:
1917                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1918                 break;
1919         case PCI_DEVICE_ID_LPE11000S:
1920                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1921                 break;
1922         case PCI_DEVICE_ID_SAT:
1923                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1924                 break;
1925         case PCI_DEVICE_ID_SAT_MID:
1926                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1927                 break;
1928         case PCI_DEVICE_ID_SAT_SMB:
1929                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1930                 break;
1931         case PCI_DEVICE_ID_SAT_DCSP:
1932                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1933                 break;
1934         case PCI_DEVICE_ID_SAT_SCSP:
1935                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1936                 break;
1937         case PCI_DEVICE_ID_SAT_S:
1938                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1939                 break;
1940         case PCI_DEVICE_ID_HORNET:
1941                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1942                 GE = 1;
1943                 break;
1944         case PCI_DEVICE_ID_PROTEUS_VF:
1945                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1946                                 "Fibre Channel Adapter"};
1947                 break;
1948         case PCI_DEVICE_ID_PROTEUS_PF:
1949                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1950                                 "Fibre Channel Adapter"};
1951                 break;
1952         case PCI_DEVICE_ID_PROTEUS_S:
1953                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1954                                 "Fibre Channel Adapter"};
1955                 break;
1956         case PCI_DEVICE_ID_TIGERSHARK:
1957                 oneConnect = 1;
1958                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1959                 break;
1960         case PCI_DEVICE_ID_TOMCAT:
1961                 oneConnect = 1;
1962                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1963                 break;
1964         case PCI_DEVICE_ID_FALCON:
1965                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1966                                 "EmulexSecure Fibre"};
1967                 break;
1968         case PCI_DEVICE_ID_BALIUS:
1969                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1970                                 "Fibre Channel Adapter"};
1971                 break;
1972         case PCI_DEVICE_ID_LANCER_FC:
1973         case PCI_DEVICE_ID_LANCER_FC_VF:
1974                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
1975                 break;
1976         case PCI_DEVICE_ID_LANCER_FCOE:
1977         case PCI_DEVICE_ID_LANCER_FCOE_VF:
1978                 oneConnect = 1;
1979                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
1980                 break;
1981         default:
1982                 m = (typeof(m)){"Unknown", "", ""};
1983                 break;
1984         }
1985
1986         if (mdp && mdp[0] == '\0')
1987                 snprintf(mdp, 79,"%s", m.name);
1988         /*
1989          * oneConnect hba requires special processing, they are all initiators
1990          * and we put the port number on the end
1991          */
1992         if (descp && descp[0] == '\0') {
1993                 if (oneConnect)
1994                         snprintf(descp, 255,
1995                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1996                                 m.name, m.function,
1997                                 phba->Port);
1998                 else
1999                         snprintf(descp, 255,
2000                                 "Emulex %s %d%s %s %s",
2001                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2002                                 m.bus, m.function);
2003         }
2004 }
2005
2006 /**
2007  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2008  * @phba: pointer to lpfc hba data structure.
2009  * @pring: pointer to a IOCB ring.
2010  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2011  *
2012  * This routine posts a given number of IOCBs with the associated DMA buffer
2013  * descriptors specified by the cnt argument to the given IOCB ring.
2014  *
2015  * Return codes
2016  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2017  **/
2018 int
2019 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2020 {
2021         IOCB_t *icmd;
2022         struct lpfc_iocbq *iocb;
2023         struct lpfc_dmabuf *mp1, *mp2;
2024
2025         cnt += pring->missbufcnt;
2026
2027         /* While there are buffers to post */
2028         while (cnt > 0) {
2029                 /* Allocate buffer for  command iocb */
2030                 iocb = lpfc_sli_get_iocbq(phba);
2031                 if (iocb == NULL) {
2032                         pring->missbufcnt = cnt;
2033                         return cnt;
2034                 }
2035                 icmd = &iocb->iocb;
2036
2037                 /* 2 buffers can be posted per command */
2038                 /* Allocate buffer to post */
2039                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2040                 if (mp1)
2041                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2042                 if (!mp1 || !mp1->virt) {
2043                         kfree(mp1);
2044                         lpfc_sli_release_iocbq(phba, iocb);
2045                         pring->missbufcnt = cnt;
2046                         return cnt;
2047                 }
2048
2049                 INIT_LIST_HEAD(&mp1->list);
2050                 /* Allocate buffer to post */
2051                 if (cnt > 1) {
2052                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2053                         if (mp2)
2054                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2055                                                             &mp2->phys);
2056                         if (!mp2 || !mp2->virt) {
2057                                 kfree(mp2);
2058                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2059                                 kfree(mp1);
2060                                 lpfc_sli_release_iocbq(phba, iocb);
2061                                 pring->missbufcnt = cnt;
2062                                 return cnt;
2063                         }
2064
2065                         INIT_LIST_HEAD(&mp2->list);
2066                 } else {
2067                         mp2 = NULL;
2068                 }
2069
2070                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2071                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2072                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2073                 icmd->ulpBdeCount = 1;
2074                 cnt--;
2075                 if (mp2) {
2076                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2077                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2078                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2079                         cnt--;
2080                         icmd->ulpBdeCount = 2;
2081                 }
2082
2083                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2084                 icmd->ulpLe = 1;
2085
2086                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2087                     IOCB_ERROR) {
2088                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2089                         kfree(mp1);
2090                         cnt++;
2091                         if (mp2) {
2092                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2093                                 kfree(mp2);
2094                                 cnt++;
2095                         }
2096                         lpfc_sli_release_iocbq(phba, iocb);
2097                         pring->missbufcnt = cnt;
2098                         return cnt;
2099                 }
2100                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2101                 if (mp2)
2102                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2103         }
2104         pring->missbufcnt = 0;
2105         return 0;
2106 }
2107
2108 /**
2109  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2110  * @phba: pointer to lpfc hba data structure.
2111  *
2112  * This routine posts initial receive IOCB buffers to the ELS ring. The
2113  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2114  * set to 64 IOCBs.
2115  *
2116  * Return codes
2117  *   0 - success (currently always success)
2118  **/
2119 static int
2120 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2121 {
2122         struct lpfc_sli *psli = &phba->sli;
2123
2124         /* Ring 0, ELS / CT buffers */
2125         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2126         /* Ring 2 - FCP no buffers needed */
2127
2128         return 0;
2129 }
2130
2131 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2132
2133 /**
2134  * lpfc_sha_init - Set up initial array of hash table entries
2135  * @HashResultPointer: pointer to an array as hash table.
2136  *
2137  * This routine sets up the initial values to the array of hash table entries
2138  * for the LC HBAs.
2139  **/
2140 static void
2141 lpfc_sha_init(uint32_t * HashResultPointer)
2142 {
2143         HashResultPointer[0] = 0x67452301;
2144         HashResultPointer[1] = 0xEFCDAB89;
2145         HashResultPointer[2] = 0x98BADCFE;
2146         HashResultPointer[3] = 0x10325476;
2147         HashResultPointer[4] = 0xC3D2E1F0;
2148 }
2149
2150 /**
2151  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2152  * @HashResultPointer: pointer to an initial/result hash table.
2153  * @HashWorkingPointer: pointer to an working hash table.
2154  *
2155  * This routine iterates an initial hash table pointed by @HashResultPointer
2156  * with the values from the working hash table pointeed by @HashWorkingPointer.
2157  * The results are putting back to the initial hash table, returned through
2158  * the @HashResultPointer as the result hash table.
2159  **/
2160 static void
2161 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2162 {
2163         int t;
2164         uint32_t TEMP;
2165         uint32_t A, B, C, D, E;
2166         t = 16;
2167         do {
2168                 HashWorkingPointer[t] =
2169                     S(1,
2170                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2171                                                                      8] ^
2172                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2173         } while (++t <= 79);
2174         t = 0;
2175         A = HashResultPointer[0];
2176         B = HashResultPointer[1];
2177         C = HashResultPointer[2];
2178         D = HashResultPointer[3];
2179         E = HashResultPointer[4];
2180
2181         do {
2182                 if (t < 20) {
2183                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2184                 } else if (t < 40) {
2185                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2186                 } else if (t < 60) {
2187                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2188                 } else {
2189                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2190                 }
2191                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2192                 E = D;
2193                 D = C;
2194                 C = S(30, B);
2195                 B = A;
2196                 A = TEMP;
2197         } while (++t <= 79);
2198
2199         HashResultPointer[0] += A;
2200         HashResultPointer[1] += B;
2201         HashResultPointer[2] += C;
2202         HashResultPointer[3] += D;
2203         HashResultPointer[4] += E;
2204
2205 }
2206
2207 /**
2208  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2209  * @RandomChallenge: pointer to the entry of host challenge random number array.
2210  * @HashWorking: pointer to the entry of the working hash array.
2211  *
2212  * This routine calculates the working hash array referred by @HashWorking
2213  * from the challenge random numbers associated with the host, referred by
2214  * @RandomChallenge. The result is put into the entry of the working hash
2215  * array and returned by reference through @HashWorking.
2216  **/
2217 static void
2218 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2219 {
2220         *HashWorking = (*RandomChallenge ^ *HashWorking);
2221 }
2222
2223 /**
2224  * lpfc_hba_init - Perform special handling for LC HBA initialization
2225  * @phba: pointer to lpfc hba data structure.
2226  * @hbainit: pointer to an array of unsigned 32-bit integers.
2227  *
2228  * This routine performs the special handling for LC HBA initialization.
2229  **/
2230 void
2231 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2232 {
2233         int t;
2234         uint32_t *HashWorking;
2235         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2236
2237         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2238         if (!HashWorking)
2239                 return;
2240
2241         HashWorking[0] = HashWorking[78] = *pwwnn++;
2242         HashWorking[1] = HashWorking[79] = *pwwnn;
2243
2244         for (t = 0; t < 7; t++)
2245                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2246
2247         lpfc_sha_init(hbainit);
2248         lpfc_sha_iterate(hbainit, HashWorking);
2249         kfree(HashWorking);
2250 }
2251
2252 /**
2253  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2254  * @vport: pointer to a virtual N_Port data structure.
2255  *
2256  * This routine performs the necessary cleanups before deleting the @vport.
2257  * It invokes the discovery state machine to perform necessary state
2258  * transitions and to release the ndlps associated with the @vport. Note,
2259  * the physical port is treated as @vport 0.
2260  **/
2261 void
2262 lpfc_cleanup(struct lpfc_vport *vport)
2263 {
2264         struct lpfc_hba   *phba = vport->phba;
2265         struct lpfc_nodelist *ndlp, *next_ndlp;
2266         int i = 0;
2267
2268         if (phba->link_state > LPFC_LINK_DOWN)
2269                 lpfc_port_link_failure(vport);
2270
2271         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2272                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2273                         ndlp = lpfc_enable_node(vport, ndlp,
2274                                                 NLP_STE_UNUSED_NODE);
2275                         if (!ndlp)
2276                                 continue;
2277                         spin_lock_irq(&phba->ndlp_lock);
2278                         NLP_SET_FREE_REQ(ndlp);
2279                         spin_unlock_irq(&phba->ndlp_lock);
2280                         /* Trigger the release of the ndlp memory */
2281                         lpfc_nlp_put(ndlp);
2282                         continue;
2283                 }
2284                 spin_lock_irq(&phba->ndlp_lock);
2285                 if (NLP_CHK_FREE_REQ(ndlp)) {
2286                         /* The ndlp should not be in memory free mode already */
2287                         spin_unlock_irq(&phba->ndlp_lock);
2288                         continue;
2289                 } else
2290                         /* Indicate request for freeing ndlp memory */
2291                         NLP_SET_FREE_REQ(ndlp);
2292                 spin_unlock_irq(&phba->ndlp_lock);
2293
2294                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2295                     ndlp->nlp_DID == Fabric_DID) {
2296                         /* Just free up ndlp with Fabric_DID for vports */
2297                         lpfc_nlp_put(ndlp);
2298                         continue;
2299                 }
2300
2301                 if (ndlp->nlp_type & NLP_FABRIC)
2302                         lpfc_disc_state_machine(vport, ndlp, NULL,
2303                                         NLP_EVT_DEVICE_RECOVERY);
2304
2305                 lpfc_disc_state_machine(vport, ndlp, NULL,
2306                                              NLP_EVT_DEVICE_RM);
2307
2308         }
2309
2310         /* At this point, ALL ndlp's should be gone
2311          * because of the previous NLP_EVT_DEVICE_RM.
2312          * Lets wait for this to happen, if needed.
2313          */
2314         while (!list_empty(&vport->fc_nodes)) {
2315                 if (i++ > 3000) {
2316                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2317                                 "0233 Nodelist not empty\n");
2318                         list_for_each_entry_safe(ndlp, next_ndlp,
2319                                                 &vport->fc_nodes, nlp_listp) {
2320                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2321                                                 LOG_NODE,
2322                                                 "0282 did:x%x ndlp:x%p "
2323                                                 "usgmap:x%x refcnt:%d\n",
2324                                                 ndlp->nlp_DID, (void *)ndlp,
2325                                                 ndlp->nlp_usg_map,
2326                                                 atomic_read(
2327                                                         &ndlp->kref.refcount));
2328                         }
2329                         break;
2330                 }
2331
2332                 /* Wait for any activity on ndlps to settle */
2333                 msleep(10);
2334         }
2335         lpfc_cleanup_vports_rrqs(vport, NULL);
2336 }
2337
2338 /**
2339  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2340  * @vport: pointer to a virtual N_Port data structure.
2341  *
2342  * This routine stops all the timers associated with a @vport. This function
2343  * is invoked before disabling or deleting a @vport. Note that the physical
2344  * port is treated as @vport 0.
2345  **/
2346 void
2347 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2348 {
2349         del_timer_sync(&vport->els_tmofunc);
2350         del_timer_sync(&vport->fc_fdmitmo);
2351         del_timer_sync(&vport->delayed_disc_tmo);
2352         lpfc_can_disctmo(vport);
2353         return;
2354 }
2355
2356 /**
2357  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2358  * @phba: pointer to lpfc hba data structure.
2359  *
2360  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2361  * caller of this routine should already hold the host lock.
2362  **/
2363 void
2364 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2365 {
2366         /* Clear pending FCF rediscovery wait flag */
2367         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2368
2369         /* Now, try to stop the timer */
2370         del_timer(&phba->fcf.redisc_wait);
2371 }
2372
2373 /**
2374  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2375  * @phba: pointer to lpfc hba data structure.
2376  *
2377  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2378  * checks whether the FCF rediscovery wait timer is pending with the host
2379  * lock held before proceeding with disabling the timer and clearing the
2380  * wait timer pendig flag.
2381  **/
2382 void
2383 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2384 {
2385         spin_lock_irq(&phba->hbalock);
2386         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2387                 /* FCF rediscovery timer already fired or stopped */
2388                 spin_unlock_irq(&phba->hbalock);
2389                 return;
2390         }
2391         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2392         /* Clear failover in progress flags */
2393         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2394         spin_unlock_irq(&phba->hbalock);
2395 }
2396
2397 /**
2398  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2399  * @phba: pointer to lpfc hba data structure.
2400  *
2401  * This routine stops all the timers associated with a HBA. This function is
2402  * invoked before either putting a HBA offline or unloading the driver.
2403  **/
2404 void
2405 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2406 {
2407         lpfc_stop_vport_timers(phba->pport);
2408         del_timer_sync(&phba->sli.mbox_tmo);
2409         del_timer_sync(&phba->fabric_block_timer);
2410         del_timer_sync(&phba->eratt_poll);
2411         del_timer_sync(&phba->hb_tmofunc);
2412         if (phba->sli_rev == LPFC_SLI_REV4) {
2413                 del_timer_sync(&phba->rrq_tmr);
2414                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2415         }
2416         phba->hb_outstanding = 0;
2417
2418         switch (phba->pci_dev_grp) {
2419         case LPFC_PCI_DEV_LP:
2420                 /* Stop any LightPulse device specific driver timers */
2421                 del_timer_sync(&phba->fcp_poll_timer);
2422                 break;
2423         case LPFC_PCI_DEV_OC:
2424                 /* Stop any OneConnect device sepcific driver timers */
2425                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2426                 break;
2427         default:
2428                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2429                                 "0297 Invalid device group (x%x)\n",
2430                                 phba->pci_dev_grp);
2431                 break;
2432         }
2433         return;
2434 }
2435
2436 /**
2437  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2438  * @phba: pointer to lpfc hba data structure.
2439  *
2440  * This routine marks a HBA's management interface as blocked. Once the HBA's
2441  * management interface is marked as blocked, all the user space access to
2442  * the HBA, whether they are from sysfs interface or libdfc interface will
2443  * all be blocked. The HBA is set to block the management interface when the
2444  * driver prepares the HBA interface for online or offline.
2445  **/
2446 static void
2447 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2448 {
2449         unsigned long iflag;
2450         uint8_t actcmd = MBX_HEARTBEAT;
2451         unsigned long timeout;
2452
2453         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2454         spin_lock_irqsave(&phba->hbalock, iflag);
2455         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2456         if (phba->sli.mbox_active) {
2457                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2458                 /* Determine how long we might wait for the active mailbox
2459                  * command to be gracefully completed by firmware.
2460                  */
2461                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2462                                 phba->sli.mbox_active) * 1000) + jiffies;
2463         }
2464         spin_unlock_irqrestore(&phba->hbalock, iflag);
2465
2466         /* Wait for the outstnading mailbox command to complete */
2467         while (phba->sli.mbox_active) {
2468                 /* Check active mailbox complete status every 2ms */
2469                 msleep(2);
2470                 if (time_after(jiffies, timeout)) {
2471                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2472                                 "2813 Mgmt IO is Blocked %x "
2473                                 "- mbox cmd %x still active\n",
2474                                 phba->sli.sli_flag, actcmd);
2475                         break;
2476                 }
2477         }
2478 }
2479
2480 /**
2481  * lpfc_online - Initialize and bring a HBA online
2482  * @phba: pointer to lpfc hba data structure.
2483  *
2484  * This routine initializes the HBA and brings a HBA online. During this
2485  * process, the management interface is blocked to prevent user space access
2486  * to the HBA interfering with the driver initialization.
2487  *
2488  * Return codes
2489  *   0 - successful
2490  *   1 - failed
2491  **/
2492 int
2493 lpfc_online(struct lpfc_hba *phba)
2494 {
2495         struct lpfc_vport *vport;
2496         struct lpfc_vport **vports;
2497         int i;
2498
2499         if (!phba)
2500                 return 0;
2501         vport = phba->pport;
2502
2503         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2504                 return 0;
2505
2506         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2507                         "0458 Bring Adapter online\n");
2508
2509         lpfc_block_mgmt_io(phba);
2510
2511         if (!lpfc_sli_queue_setup(phba)) {
2512                 lpfc_unblock_mgmt_io(phba);
2513                 return 1;
2514         }
2515
2516         if (phba->sli_rev == LPFC_SLI_REV4) {
2517                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2518                         lpfc_unblock_mgmt_io(phba);
2519                         return 1;
2520                 }
2521         } else {
2522                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2523                         lpfc_unblock_mgmt_io(phba);
2524                         return 1;
2525                 }
2526         }
2527
2528         vports = lpfc_create_vport_work_array(phba);
2529         if (vports != NULL)
2530                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2531                         struct Scsi_Host *shost;
2532                         shost = lpfc_shost_from_vport(vports[i]);
2533                         spin_lock_irq(shost->host_lock);
2534                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2535                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2536                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2537                         if (phba->sli_rev == LPFC_SLI_REV4)
2538                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2539                         spin_unlock_irq(shost->host_lock);
2540                 }
2541                 lpfc_destroy_vport_work_array(phba, vports);
2542
2543         lpfc_unblock_mgmt_io(phba);
2544         return 0;
2545 }
2546
2547 /**
2548  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2549  * @phba: pointer to lpfc hba data structure.
2550  *
2551  * This routine marks a HBA's management interface as not blocked. Once the
2552  * HBA's management interface is marked as not blocked, all the user space
2553  * access to the HBA, whether they are from sysfs interface or libdfc
2554  * interface will be allowed. The HBA is set to block the management interface
2555  * when the driver prepares the HBA interface for online or offline and then
2556  * set to unblock the management interface afterwards.
2557  **/
2558 void
2559 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2560 {
2561         unsigned long iflag;
2562
2563         spin_lock_irqsave(&phba->hbalock, iflag);
2564         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2565         spin_unlock_irqrestore(&phba->hbalock, iflag);
2566 }
2567
2568 /**
2569  * lpfc_offline_prep - Prepare a HBA to be brought offline
2570  * @phba: pointer to lpfc hba data structure.
2571  *
2572  * This routine is invoked to prepare a HBA to be brought offline. It performs
2573  * unregistration login to all the nodes on all vports and flushes the mailbox
2574  * queue to make it ready to be brought offline.
2575  **/
2576 void
2577 lpfc_offline_prep(struct lpfc_hba * phba)
2578 {
2579         struct lpfc_vport *vport = phba->pport;
2580         struct lpfc_nodelist  *ndlp, *next_ndlp;
2581         struct lpfc_vport **vports;
2582         struct Scsi_Host *shost;
2583         int i;
2584
2585         if (vport->fc_flag & FC_OFFLINE_MODE)
2586                 return;
2587
2588         lpfc_block_mgmt_io(phba);
2589
2590         lpfc_linkdown(phba);
2591
2592         /* Issue an unreg_login to all nodes on all vports */
2593         vports = lpfc_create_vport_work_array(phba);
2594         if (vports != NULL) {
2595                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2596                         if (vports[i]->load_flag & FC_UNLOADING)
2597                                 continue;
2598                         shost = lpfc_shost_from_vport(vports[i]);
2599                         spin_lock_irq(shost->host_lock);
2600                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2601                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2602                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2603                         spin_unlock_irq(shost->host_lock);
2604
2605                         shost = lpfc_shost_from_vport(vports[i]);
2606                         list_for_each_entry_safe(ndlp, next_ndlp,
2607                                                  &vports[i]->fc_nodes,
2608                                                  nlp_listp) {
2609                                 if (!NLP_CHK_NODE_ACT(ndlp))
2610                                         continue;
2611                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2612                                         continue;
2613                                 if (ndlp->nlp_type & NLP_FABRIC) {
2614                                         lpfc_disc_state_machine(vports[i], ndlp,
2615                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2616                                         lpfc_disc_state_machine(vports[i], ndlp,
2617                                                 NULL, NLP_EVT_DEVICE_RM);
2618                                 }
2619                                 spin_lock_irq(shost->host_lock);
2620                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2621                                 spin_unlock_irq(shost->host_lock);
2622                                 lpfc_unreg_rpi(vports[i], ndlp);
2623                         }
2624                 }
2625         }
2626         lpfc_destroy_vport_work_array(phba, vports);
2627
2628         lpfc_sli_mbox_sys_shutdown(phba);
2629 }
2630
2631 /**
2632  * lpfc_offline - Bring a HBA offline
2633  * @phba: pointer to lpfc hba data structure.
2634  *
2635  * This routine actually brings a HBA offline. It stops all the timers
2636  * associated with the HBA, brings down the SLI layer, and eventually
2637  * marks the HBA as in offline state for the upper layer protocol.
2638  **/
2639 void
2640 lpfc_offline(struct lpfc_hba *phba)
2641 {
2642         struct Scsi_Host  *shost;
2643         struct lpfc_vport **vports;
2644         int i;
2645
2646         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2647                 return;
2648
2649         /* stop port and all timers associated with this hba */
2650         lpfc_stop_port(phba);
2651         vports = lpfc_create_vport_work_array(phba);
2652         if (vports != NULL)
2653                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2654                         lpfc_stop_vport_timers(vports[i]);
2655         lpfc_destroy_vport_work_array(phba, vports);
2656         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2657                         "0460 Bring Adapter offline\n");
2658         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2659            now.  */
2660         lpfc_sli_hba_down(phba);
2661         spin_lock_irq(&phba->hbalock);
2662         phba->work_ha = 0;
2663         spin_unlock_irq(&phba->hbalock);
2664         vports = lpfc_create_vport_work_array(phba);
2665         if (vports != NULL)
2666                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2667                         shost = lpfc_shost_from_vport(vports[i]);
2668                         spin_lock_irq(shost->host_lock);
2669                         vports[i]->work_port_events = 0;
2670                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2671                         spin_unlock_irq(shost->host_lock);
2672                 }
2673         lpfc_destroy_vport_work_array(phba, vports);
2674 }
2675
2676 /**
2677  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2678  * @phba: pointer to lpfc hba data structure.
2679  *
2680  * This routine is to free all the SCSI buffers and IOCBs from the driver
2681  * list back to kernel. It is called from lpfc_pci_remove_one to free
2682  * the internal resources before the device is removed from the system.
2683  *
2684  * Return codes
2685  *   0 - successful (for now, it always returns 0)
2686  **/
2687 static int
2688 lpfc_scsi_free(struct lpfc_hba *phba)
2689 {
2690         struct lpfc_scsi_buf *sb, *sb_next;
2691         struct lpfc_iocbq *io, *io_next;
2692
2693         spin_lock_irq(&phba->hbalock);
2694         /* Release all the lpfc_scsi_bufs maintained by this host. */
2695         spin_lock(&phba->scsi_buf_list_lock);
2696         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2697                 list_del(&sb->list);
2698                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2699                               sb->dma_handle);
2700                 kfree(sb);
2701                 phba->total_scsi_bufs--;
2702         }
2703         spin_unlock(&phba->scsi_buf_list_lock);
2704
2705         /* Release all the lpfc_iocbq entries maintained by this host. */
2706         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2707                 list_del(&io->list);
2708                 kfree(io);
2709                 phba->total_iocbq_bufs--;
2710         }
2711
2712         spin_unlock_irq(&phba->hbalock);
2713         return 0;
2714 }
2715
2716 /**
2717  * lpfc_create_port - Create an FC port
2718  * @phba: pointer to lpfc hba data structure.
2719  * @instance: a unique integer ID to this FC port.
2720  * @dev: pointer to the device data structure.
2721  *
2722  * This routine creates a FC port for the upper layer protocol. The FC port
2723  * can be created on top of either a physical port or a virtual port provided
2724  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2725  * and associates the FC port created before adding the shost into the SCSI
2726  * layer.
2727  *
2728  * Return codes
2729  *   @vport - pointer to the virtual N_Port data structure.
2730  *   NULL - port create failed.
2731  **/
2732 struct lpfc_vport *
2733 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2734 {
2735         struct lpfc_vport *vport;
2736         struct Scsi_Host  *shost;
2737         int error = 0;
2738
2739         if (dev != &phba->pcidev->dev)
2740                 shost = scsi_host_alloc(&lpfc_vport_template,
2741                                         sizeof(struct lpfc_vport));
2742         else
2743                 shost = scsi_host_alloc(&lpfc_template,
2744                                         sizeof(struct lpfc_vport));
2745         if (!shost)
2746                 goto out;
2747
2748         vport = (struct lpfc_vport *) shost->hostdata;
2749         vport->phba = phba;
2750         vport->load_flag |= FC_LOADING;
2751         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2752         vport->fc_rscn_flush = 0;
2753
2754         lpfc_get_vport_cfgparam(vport);
2755         shost->unique_id = instance;
2756         shost->max_id = LPFC_MAX_TARGET;
2757         shost->max_lun = vport->cfg_max_luns;
2758         shost->this_id = -1;
2759         shost->max_cmd_len = 16;
2760         if (phba->sli_rev == LPFC_SLI_REV4) {
2761                 shost->dma_boundary =
2762                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2763                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2764         }
2765
2766         /*
2767          * Set initial can_queue value since 0 is no longer supported and
2768          * scsi_add_host will fail. This will be adjusted later based on the
2769          * max xri value determined in hba setup.
2770          */
2771         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2772         if (dev != &phba->pcidev->dev) {
2773                 shost->transportt = lpfc_vport_transport_template;
2774                 vport->port_type = LPFC_NPIV_PORT;
2775         } else {
2776                 shost->transportt = lpfc_transport_template;
2777                 vport->port_type = LPFC_PHYSICAL_PORT;
2778         }
2779
2780         /* Initialize all internally managed lists. */
2781         INIT_LIST_HEAD(&vport->fc_nodes);
2782         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2783         spin_lock_init(&vport->work_port_lock);
2784
2785         init_timer(&vport->fc_disctmo);
2786         vport->fc_disctmo.function = lpfc_disc_timeout;
2787         vport->fc_disctmo.data = (unsigned long)vport;
2788
2789         init_timer(&vport->fc_fdmitmo);
2790         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2791         vport->fc_fdmitmo.data = (unsigned long)vport;
2792
2793         init_timer(&vport->els_tmofunc);
2794         vport->els_tmofunc.function = lpfc_els_timeout;
2795         vport->els_tmofunc.data = (unsigned long)vport;
2796
2797         init_timer(&vport->delayed_disc_tmo);
2798         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2799         vport->delayed_disc_tmo.data = (unsigned long)vport;
2800
2801         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2802         if (error)
2803                 goto out_put_shost;
2804
2805         spin_lock_irq(&phba->hbalock);
2806         list_add_tail(&vport->listentry, &phba->port_list);
2807         spin_unlock_irq(&phba->hbalock);
2808         return vport;
2809
2810 out_put_shost:
2811         scsi_host_put(shost);
2812 out:
2813         return NULL;
2814 }
2815
2816 /**
2817  * destroy_port -  destroy an FC port
2818  * @vport: pointer to an lpfc virtual N_Port data structure.
2819  *
2820  * This routine destroys a FC port from the upper layer protocol. All the
2821  * resources associated with the port are released.
2822  **/
2823 void
2824 destroy_port(struct lpfc_vport *vport)
2825 {
2826         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2827         struct lpfc_hba  *phba = vport->phba;
2828
2829         lpfc_debugfs_terminate(vport);
2830         fc_remove_host(shost);
2831         scsi_remove_host(shost);
2832
2833         spin_lock_irq(&phba->hbalock);
2834         list_del_init(&vport->listentry);
2835         spin_unlock_irq(&phba->hbalock);
2836
2837         lpfc_cleanup(vport);
2838         return;
2839 }
2840
2841 /**
2842  * lpfc_get_instance - Get a unique integer ID
2843  *
2844  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2845  * uses the kernel idr facility to perform the task.
2846  *
2847  * Return codes:
2848  *   instance - a unique integer ID allocated as the new instance.
2849  *   -1 - lpfc get instance failed.
2850  **/
2851 int
2852 lpfc_get_instance(void)
2853 {
2854         int instance = 0;
2855
2856         /* Assign an unused number */
2857         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2858                 return -1;
2859         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2860                 return -1;
2861         return instance;
2862 }
2863
2864 /**
2865  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2866  * @shost: pointer to SCSI host data structure.
2867  * @time: elapsed time of the scan in jiffies.
2868  *
2869  * This routine is called by the SCSI layer with a SCSI host to determine
2870  * whether the scan host is finished.
2871  *
2872  * Note: there is no scan_start function as adapter initialization will have
2873  * asynchronously kicked off the link initialization.
2874  *
2875  * Return codes
2876  *   0 - SCSI host scan is not over yet.
2877  *   1 - SCSI host scan is over.
2878  **/
2879 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2880 {
2881         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2882         struct lpfc_hba   *phba = vport->phba;
2883         int stat = 0;
2884
2885         spin_lock_irq(shost->host_lock);
2886
2887         if (vport->load_flag & FC_UNLOADING) {
2888                 stat = 1;
2889                 goto finished;
2890         }
2891         if (time >= 30 * HZ) {
2892                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2893                                 "0461 Scanning longer than 30 "
2894                                 "seconds.  Continuing initialization\n");
2895                 stat = 1;
2896                 goto finished;
2897         }
2898         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2899                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2900                                 "0465 Link down longer than 15 "
2901                                 "seconds.  Continuing initialization\n");
2902                 stat = 1;
2903                 goto finished;
2904         }
2905
2906         if (vport->port_state != LPFC_VPORT_READY)
2907                 goto finished;
2908         if (vport->num_disc_nodes || vport->fc_prli_sent)
2909                 goto finished;
2910         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2911                 goto finished;
2912         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2913                 goto finished;
2914
2915         stat = 1;
2916
2917 finished:
2918         spin_unlock_irq(shost->host_lock);
2919         return stat;
2920 }
2921
2922 /**
2923  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2924  * @shost: pointer to SCSI host data structure.
2925  *
2926  * This routine initializes a given SCSI host attributes on a FC port. The
2927  * SCSI host can be either on top of a physical port or a virtual port.
2928  **/
2929 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2930 {
2931         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2932         struct lpfc_hba   *phba = vport->phba;
2933         /*
2934          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2935          */
2936
2937         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2938         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2939         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2940
2941         memset(fc_host_supported_fc4s(shost), 0,
2942                sizeof(fc_host_supported_fc4s(shost)));
2943         fc_host_supported_fc4s(shost)[2] = 1;
2944         fc_host_supported_fc4s(shost)[7] = 1;
2945
2946         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2947                                  sizeof fc_host_symbolic_name(shost));
2948
2949         fc_host_supported_speeds(shost) = 0;
2950         if (phba->lmt & LMT_16Gb)
2951                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
2952         if (phba->lmt & LMT_10Gb)
2953                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2954         if (phba->lmt & LMT_8Gb)
2955                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2956         if (phba->lmt & LMT_4Gb)
2957                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2958         if (phba->lmt & LMT_2Gb)
2959                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2960         if (phba->lmt & LMT_1Gb)
2961                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2962
2963         fc_host_maxframe_size(shost) =
2964                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2965                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2966
2967         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2968
2969         /* This value is also unchanging */
2970         memset(fc_host_active_fc4s(shost), 0,
2971                sizeof(fc_host_active_fc4s(shost)));
2972         fc_host_active_fc4s(shost)[2] = 1;
2973         fc_host_active_fc4s(shost)[7] = 1;
2974
2975         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2976         spin_lock_irq(shost->host_lock);
2977         vport->load_flag &= ~FC_LOADING;
2978         spin_unlock_irq(shost->host_lock);
2979 }
2980
2981 /**
2982  * lpfc_stop_port_s3 - Stop SLI3 device port
2983  * @phba: pointer to lpfc hba data structure.
2984  *
2985  * This routine is invoked to stop an SLI3 device port, it stops the device
2986  * from generating interrupts and stops the device driver's timers for the
2987  * device.
2988  **/
2989 static void
2990 lpfc_stop_port_s3(struct lpfc_hba *phba)
2991 {
2992         /* Clear all interrupt enable conditions */
2993         writel(0, phba->HCregaddr);
2994         readl(phba->HCregaddr); /* flush */
2995         /* Clear all pending interrupts */
2996         writel(0xffffffff, phba->HAregaddr);
2997         readl(phba->HAregaddr); /* flush */
2998
2999         /* Reset some HBA SLI setup states */
3000         lpfc_stop_hba_timers(phba);
3001         phba->pport->work_port_events = 0;
3002 }
3003
3004 /**
3005  * lpfc_stop_port_s4 - Stop SLI4 device port
3006  * @phba: pointer to lpfc hba data structure.
3007  *
3008  * This routine is invoked to stop an SLI4 device port, it stops the device
3009  * from generating interrupts and stops the device driver's timers for the
3010  * device.
3011  **/
3012 static void
3013 lpfc_stop_port_s4(struct lpfc_hba *phba)
3014 {
3015         /* Reset some HBA SLI4 setup states */
3016         lpfc_stop_hba_timers(phba);
3017         phba->pport->work_port_events = 0;
3018         phba->sli4_hba.intr_enable = 0;
3019 }
3020
3021 /**
3022  * lpfc_stop_port - Wrapper function for stopping hba port
3023  * @phba: Pointer to HBA context object.
3024  *
3025  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3026  * the API jump table function pointer from the lpfc_hba struct.
3027  **/
3028 void
3029 lpfc_stop_port(struct lpfc_hba *phba)
3030 {
3031         phba->lpfc_stop_port(phba);
3032 }
3033
3034 /**
3035  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3036  * @phba: Pointer to hba for which this call is being executed.
3037  *
3038  * This routine starts the timer waiting for the FCF rediscovery to complete.
3039  **/
3040 void
3041 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3042 {
3043         unsigned long fcf_redisc_wait_tmo =
3044                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3045         /* Start fcf rediscovery wait period timer */
3046         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3047         spin_lock_irq(&phba->hbalock);
3048         /* Allow action to new fcf asynchronous event */
3049         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3050         /* Mark the FCF rediscovery pending state */
3051         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3052         spin_unlock_irq(&phba->hbalock);
3053 }
3054
3055 /**
3056  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3057  * @ptr: Map to lpfc_hba data structure pointer.
3058  *
3059  * This routine is invoked when waiting for FCF table rediscover has been
3060  * timed out. If new FCF record(s) has (have) been discovered during the
3061  * wait period, a new FCF event shall be added to the FCOE async event
3062  * list, and then worker thread shall be waked up for processing from the
3063  * worker thread context.
3064  **/
3065 void
3066 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3067 {
3068         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3069
3070         /* Don't send FCF rediscovery event if timer cancelled */
3071         spin_lock_irq(&phba->hbalock);
3072         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3073                 spin_unlock_irq(&phba->hbalock);
3074                 return;
3075         }
3076         /* Clear FCF rediscovery timer pending flag */
3077         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3078         /* FCF rediscovery event to worker thread */
3079         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3080         spin_unlock_irq(&phba->hbalock);
3081         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3082                         "2776 FCF rediscover quiescent timer expired\n");
3083         /* wake up worker thread */
3084         lpfc_worker_wake_up(phba);
3085 }
3086
3087 /**
3088  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3089  * @phba: pointer to lpfc hba data structure.
3090  * @acqe_link: pointer to the async link completion queue entry.
3091  *
3092  * This routine is to parse the SLI4 link-attention link fault code and
3093  * translate it into the base driver's read link attention mailbox command
3094  * status.
3095  *
3096  * Return: Link-attention status in terms of base driver's coding.
3097  **/
3098 static uint16_t
3099 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3100                            struct lpfc_acqe_link *acqe_link)
3101 {
3102         uint16_t latt_fault;
3103
3104         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3105         case LPFC_ASYNC_LINK_FAULT_NONE:
3106         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3107         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3108                 latt_fault = 0;
3109                 break;
3110         default:
3111                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3112                                 "0398 Invalid link fault code: x%x\n",
3113                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3114                 latt_fault = MBXERR_ERROR;
3115                 break;
3116         }
3117         return latt_fault;
3118 }
3119
3120 /**
3121  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3122  * @phba: pointer to lpfc hba data structure.
3123  * @acqe_link: pointer to the async link completion queue entry.
3124  *
3125  * This routine is to parse the SLI4 link attention type and translate it
3126  * into the base driver's link attention type coding.
3127  *
3128  * Return: Link attention type in terms of base driver's coding.
3129  **/
3130 static uint8_t
3131 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3132                           struct lpfc_acqe_link *acqe_link)
3133 {
3134         uint8_t att_type;
3135
3136         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3137         case LPFC_ASYNC_LINK_STATUS_DOWN:
3138         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3139                 att_type = LPFC_ATT_LINK_DOWN;
3140                 break;
3141         case LPFC_ASYNC_LINK_STATUS_UP:
3142                 /* Ignore physical link up events - wait for logical link up */
3143                 att_type = LPFC_ATT_RESERVED;
3144                 break;
3145         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3146                 att_type = LPFC_ATT_LINK_UP;
3147                 break;
3148         default:
3149                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3150                                 "0399 Invalid link attention type: x%x\n",
3151                                 bf_get(lpfc_acqe_link_status, acqe_link));
3152                 att_type = LPFC_ATT_RESERVED;
3153                 break;
3154         }
3155         return att_type;
3156 }
3157
3158 /**
3159  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3160  * @phba: pointer to lpfc hba data structure.
3161  * @acqe_link: pointer to the async link completion queue entry.
3162  *
3163  * This routine is to parse the SLI4 link-attention link speed and translate
3164  * it into the base driver's link-attention link speed coding.
3165  *
3166  * Return: Link-attention link speed in terms of base driver's coding.
3167  **/
3168 static uint8_t
3169 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3170                                 struct lpfc_acqe_link *acqe_link)
3171 {
3172         uint8_t link_speed;
3173
3174         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3175         case LPFC_ASYNC_LINK_SPEED_ZERO:
3176         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3177         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3178                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3179                 break;
3180         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3181                 link_speed = LPFC_LINK_SPEED_1GHZ;
3182                 break;
3183         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3184                 link_speed = LPFC_LINK_SPEED_10GHZ;
3185                 break;
3186         default:
3187                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3188                                 "0483 Invalid link-attention link speed: x%x\n",
3189                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3190                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3191                 break;
3192         }
3193         return link_speed;
3194 }
3195
3196 /**
3197  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3198  * @phba: pointer to lpfc hba data structure.
3199  * @acqe_link: pointer to the async link completion queue entry.
3200  *
3201  * This routine is to handle the SLI4 asynchronous FCoE link event.
3202  **/
3203 static void
3204 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3205                          struct lpfc_acqe_link *acqe_link)
3206 {
3207         struct lpfc_dmabuf *mp;
3208         LPFC_MBOXQ_t *pmb;
3209         MAILBOX_t *mb;
3210         struct lpfc_mbx_read_top *la;
3211         uint8_t att_type;
3212         int rc;
3213
3214         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3215         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3216                 return;
3217         phba->fcoe_eventtag = acqe_link->event_tag;
3218         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3219         if (!pmb) {
3220                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3221                                 "0395 The mboxq allocation failed\n");
3222                 return;
3223         }
3224         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3225         if (!mp) {
3226                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3227                                 "0396 The lpfc_dmabuf allocation failed\n");
3228                 goto out_free_pmb;
3229         }
3230         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3231         if (!mp->virt) {
3232                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3233                                 "0397 The mbuf allocation failed\n");
3234                 goto out_free_dmabuf;
3235         }
3236
3237         /* Cleanup any outstanding ELS commands */
3238         lpfc_els_flush_all_cmd(phba);
3239
3240         /* Block ELS IOCBs until we have done process link event */
3241         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3242
3243         /* Update link event statistics */
3244         phba->sli.slistat.link_event++;
3245
3246         /* Create lpfc_handle_latt mailbox command from link ACQE */
3247         lpfc_read_topology(phba, pmb, mp);
3248         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3249         pmb->vport = phba->pport;
3250
3251         /* Keep the link status for extra SLI4 state machine reference */
3252         phba->sli4_hba.link_state.speed =
3253                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3254         phba->sli4_hba.link_state.duplex =
3255                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3256         phba->sli4_hba.link_state.status =
3257                                 bf_get(lpfc_acqe_link_status, acqe_link);
3258         phba->sli4_hba.link_state.type =
3259                                 bf_get(lpfc_acqe_link_type, acqe_link);
3260         phba->sli4_hba.link_state.number =
3261                                 bf_get(lpfc_acqe_link_number, acqe_link);
3262         phba->sli4_hba.link_state.fault =
3263                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3264         phba->sli4_hba.link_state.logical_speed =
3265                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3266         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3267                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3268                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3269                         "Logical speed:%dMbps Fault:%d\n",
3270                         phba->sli4_hba.link_state.speed,
3271                         phba->sli4_hba.link_state.topology,
3272                         phba->sli4_hba.link_state.status,
3273                         phba->sli4_hba.link_state.type,
3274                         phba->sli4_hba.link_state.number,
3275                         phba->sli4_hba.link_state.logical_speed * 10,
3276                         phba->sli4_hba.link_state.fault);
3277         /*
3278          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3279          * topology info. Note: Optional for non FC-AL ports.
3280          */
3281         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3282                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3283                 if (rc == MBX_NOT_FINISHED)
3284                         goto out_free_dmabuf;
3285                 return;
3286         }
3287         /*
3288          * For FCoE Mode: fill in all the topology information we need and call
3289          * the READ_TOPOLOGY completion routine to continue without actually
3290          * sending the READ_TOPOLOGY mailbox command to the port.
3291          */
3292         /* Parse and translate status field */
3293         mb = &pmb->u.mb;
3294         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3295
3296         /* Parse and translate link attention fields */
3297         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3298         la->eventTag = acqe_link->event_tag;
3299         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3300         bf_set(lpfc_mbx_read_top_link_spd, la,
3301                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3302
3303         /* Fake the the following irrelvant fields */
3304         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3305         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3306         bf_set(lpfc_mbx_read_top_il, la, 0);
3307         bf_set(lpfc_mbx_read_top_pb, la, 0);
3308         bf_set(lpfc_mbx_read_top_fa, la, 0);
3309         bf_set(lpfc_mbx_read_top_mm, la, 0);
3310
3311         /* Invoke the lpfc_handle_latt mailbox command callback function */
3312         lpfc_mbx_cmpl_read_topology(phba, pmb);
3313
3314         return;
3315
3316 out_free_dmabuf:
3317         kfree(mp);
3318 out_free_pmb:
3319         mempool_free(pmb, phba->mbox_mem_pool);
3320 }
3321
3322 /**
3323  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3324  * @phba: pointer to lpfc hba data structure.
3325  * @acqe_fc: pointer to the async fc completion queue entry.
3326  *
3327  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3328  * that the event was received and then issue a read_topology mailbox command so
3329  * that the rest of the driver will treat it the same as SLI3.
3330  **/
3331 static void
3332 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3333 {
3334         struct lpfc_dmabuf *mp;
3335         LPFC_MBOXQ_t *pmb;
3336         int rc;
3337
3338         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3339             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3340                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3341                                 "2895 Non FC link Event detected.(%d)\n",
3342                                 bf_get(lpfc_trailer_type, acqe_fc));
3343                 return;
3344         }
3345         /* Keep the link status for extra SLI4 state machine reference */
3346         phba->sli4_hba.link_state.speed =
3347                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3348         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3349         phba->sli4_hba.link_state.topology =
3350                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3351         phba->sli4_hba.link_state.status =
3352                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3353         phba->sli4_hba.link_state.type =
3354                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3355         phba->sli4_hba.link_state.number =
3356                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3357         phba->sli4_hba.link_state.fault =
3358                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3359         phba->sli4_hba.link_state.logical_speed =
3360                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3361         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3362                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3363                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3364                         "%dMbps Fault:%d\n",
3365                         phba->sli4_hba.link_state.speed,
3366                         phba->sli4_hba.link_state.topology,
3367                         phba->sli4_hba.link_state.status,
3368                         phba->sli4_hba.link_state.type,
3369                         phba->sli4_hba.link_state.number,
3370                         phba->sli4_hba.link_state.logical_speed * 10,
3371                         phba->sli4_hba.link_state.fault);
3372         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3373         if (!pmb) {
3374                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3375                                 "2897 The mboxq allocation failed\n");
3376                 return;
3377         }
3378         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3379         if (!mp) {
3380                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3381                                 "2898 The lpfc_dmabuf allocation failed\n");
3382                 goto out_free_pmb;
3383         }
3384         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3385         if (!mp->virt) {
3386                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3387                                 "2899 The mbuf allocation failed\n");
3388                 goto out_free_dmabuf;
3389         }
3390
3391         /* Cleanup any outstanding ELS commands */
3392         lpfc_els_flush_all_cmd(phba);
3393
3394         /* Block ELS IOCBs until we have done process link event */
3395         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3396
3397         /* Update link event statistics */
3398         phba->sli.slistat.link_event++;
3399
3400         /* Create lpfc_handle_latt mailbox command from link ACQE */
3401         lpfc_read_topology(phba, pmb, mp);
3402         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3403         pmb->vport = phba->pport;
3404
3405         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3406         if (rc == MBX_NOT_FINISHED)
3407                 goto out_free_dmabuf;
3408         return;
3409
3410 out_free_dmabuf:
3411         kfree(mp);
3412 out_free_pmb:
3413         mempool_free(pmb, phba->mbox_mem_pool);
3414 }
3415
3416 /**
3417  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3418  * @phba: pointer to lpfc hba data structure.
3419  * @acqe_fc: pointer to the async SLI completion queue entry.
3420  *
3421  * This routine is to handle the SLI4 asynchronous SLI events.
3422  **/
3423 static void
3424 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3425 {
3426         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3427                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3428                         "x%08x SLI Event Type:%d",
3429                         acqe_sli->event_data1, acqe_sli->event_data2,
3430                         bf_get(lpfc_trailer_type, acqe_sli));
3431         return;
3432 }
3433
3434 /**
3435  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3436  * @vport: pointer to vport data structure.
3437  *
3438  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3439  * response to a CVL event.
3440  *
3441  * Return the pointer to the ndlp with the vport if successful, otherwise
3442  * return NULL.
3443  **/
3444 static struct lpfc_nodelist *
3445 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3446 {
3447         struct lpfc_nodelist *ndlp;
3448         struct Scsi_Host *shost;
3449         struct lpfc_hba *phba;
3450
3451         if (!vport)
3452                 return NULL;
3453         phba = vport->phba;
3454         if (!phba)
3455                 return NULL;
3456         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3457         if (!ndlp) {
3458                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3459                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3460                 if (!ndlp)
3461                         return 0;
3462                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3463                 /* Set the node type */
3464                 ndlp->nlp_type |= NLP_FABRIC;
3465                 /* Put ndlp onto node list */
3466                 lpfc_enqueue_node(vport, ndlp);
3467         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3468                 /* re-setup ndlp without removing from node list */
3469                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3470                 if (!ndlp)
3471                         return 0;
3472         }
3473         if ((phba->pport->port_state < LPFC_FLOGI) &&
3474                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3475                 return NULL;
3476         /* If virtual link is not yet instantiated ignore CVL */
3477         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3478                 && (vport->port_state != LPFC_VPORT_FAILED))
3479                 return NULL;
3480         shost = lpfc_shost_from_vport(vport);
3481         if (!shost)
3482                 return NULL;
3483         lpfc_linkdown_port(vport);
3484         lpfc_cleanup_pending_mbox(vport);
3485         spin_lock_irq(shost->host_lock);
3486         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3487         spin_unlock_irq(shost->host_lock);
3488
3489         return ndlp;
3490 }
3491
3492 /**
3493  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3494  * @vport: pointer to lpfc hba data structure.
3495  *
3496  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3497  * response to a FCF dead event.
3498  **/
3499 static void
3500 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3501 {
3502         struct lpfc_vport **vports;
3503         int i;
3504
3505         vports = lpfc_create_vport_work_array(phba);
3506         if (vports)
3507                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3508                         lpfc_sli4_perform_vport_cvl(vports[i]);
3509         lpfc_destroy_vport_work_array(phba, vports);
3510 }
3511
3512 /**
3513  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3514  * @phba: pointer to lpfc hba data structure.
3515  * @acqe_link: pointer to the async fcoe completion queue entry.
3516  *
3517  * This routine is to handle the SLI4 asynchronous fcoe event.
3518  **/
3519 static void
3520 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3521                         struct lpfc_acqe_fip *acqe_fip)
3522 {
3523         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3524         int rc;
3525         struct lpfc_vport *vport;
3526         struct lpfc_nodelist *ndlp;
3527         struct Scsi_Host  *shost;
3528         int active_vlink_present;
3529         struct lpfc_vport **vports;
3530         int i;
3531
3532         phba->fc_eventTag = acqe_fip->event_tag;
3533         phba->fcoe_eventtag = acqe_fip->event_tag;
3534         switch (event_type) {
3535         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3536         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3537                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3538                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3539                                         LOG_DISCOVERY,
3540                                         "2546 New FCF event, evt_tag:x%x, "
3541                                         "index:x%x\n",
3542                                         acqe_fip->event_tag,
3543                                         acqe_fip->index);
3544                 else
3545                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3546                                         LOG_DISCOVERY,
3547                                         "2788 FCF param modified event, "
3548                                         "evt_tag:x%x, index:x%x\n",
3549                                         acqe_fip->event_tag,
3550                                         acqe_fip->index);
3551                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3552                         /*
3553                          * During period of FCF discovery, read the FCF
3554                          * table record indexed by the event to update
3555                          * FCF roundrobin failover eligible FCF bmask.
3556                          */
3557                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3558                                         LOG_DISCOVERY,
3559                                         "2779 Read FCF (x%x) for updating "
3560                                         "roundrobin FCF failover bmask\n",
3561                                         acqe_fip->index);
3562                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3563                 }
3564
3565                 /* If the FCF discovery is in progress, do nothing. */
3566                 spin_lock_irq(&phba->hbalock);
3567                 if (phba->hba_flag & FCF_TS_INPROG) {
3568                         spin_unlock_irq(&phba->hbalock);
3569                         break;
3570                 }
3571                 /* If fast FCF failover rescan event is pending, do nothing */
3572                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3573                         spin_unlock_irq(&phba->hbalock);
3574                         break;
3575                 }
3576
3577                 /* If the FCF has been in discovered state, do nothing. */
3578                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3579                         spin_unlock_irq(&phba->hbalock);
3580                         break;
3581                 }
3582                 spin_unlock_irq(&phba->hbalock);
3583
3584                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3585                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3586                                 "2770 Start FCF table scan per async FCF "
3587                                 "event, evt_tag:x%x, index:x%x\n",
3588                                 acqe_fip->event_tag, acqe_fip->index);
3589                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3590                                                      LPFC_FCOE_FCF_GET_FIRST);
3591                 if (rc)
3592                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3593                                         "2547 Issue FCF scan read FCF mailbox "
3594                                         "command failed (x%x)\n", rc);
3595                 break;
3596
3597         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3598                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3599                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3600                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3601                         acqe_fip->event_tag);
3602                 break;
3603
3604         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3605                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3606                         "2549 FCF (x%x) disconnected from network, "
3607                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3608                 /*
3609                  * If we are in the middle of FCF failover process, clear
3610                  * the corresponding FCF bit in the roundrobin bitmap.
3611                  */
3612                 spin_lock_irq(&phba->hbalock);
3613                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3614                         spin_unlock_irq(&phba->hbalock);
3615                         /* Update FLOGI FCF failover eligible FCF bmask */
3616                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3617                         break;
3618                 }
3619                 spin_unlock_irq(&phba->hbalock);
3620
3621                 /* If the event is not for currently used fcf do nothing */
3622                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3623                         break;
3624
3625                 /*
3626                  * Otherwise, request the port to rediscover the entire FCF
3627                  * table for a fast recovery from case that the current FCF
3628                  * is no longer valid as we are not in the middle of FCF
3629                  * failover process already.
3630                  */
3631                 spin_lock_irq(&phba->hbalock);
3632                 /* Mark the fast failover process in progress */
3633                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3634                 spin_unlock_irq(&phba->hbalock);
3635
3636                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3637                                 "2771 Start FCF fast failover process due to "
3638                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3639                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3640                 rc = lpfc_sli4_redisc_fcf_table(phba);
3641                 if (rc) {
3642                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3643                                         LOG_DISCOVERY,
3644                                         "2772 Issue FCF rediscover mabilbox "
3645                                         "command failed, fail through to FCF "
3646                                         "dead event\n");
3647                         spin_lock_irq(&phba->hbalock);
3648                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3649                         spin_unlock_irq(&phba->hbalock);
3650                         /*
3651                          * Last resort will fail over by treating this
3652                          * as a link down to FCF registration.
3653                          */
3654                         lpfc_sli4_fcf_dead_failthrough(phba);
3655                 } else {
3656                         /* Reset FCF roundrobin bmask for new discovery */
3657                         lpfc_sli4_clear_fcf_rr_bmask(phba);
3658                         /*
3659                          * Handling fast FCF failover to a DEAD FCF event is
3660                          * considered equalivant to receiving CVL to all vports.
3661                          */
3662                         lpfc_sli4_perform_all_vport_cvl(phba);
3663                 }
3664                 break;
3665         case LPFC_FIP_EVENT_TYPE_CVL:
3666                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3667                         "2718 Clear Virtual Link Received for VPI 0x%x"
3668                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3669
3670                 vport = lpfc_find_vport_by_vpid(phba,
3671                                                 acqe_fip->index);
3672                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3673                 if (!ndlp)
3674                         break;
3675                 active_vlink_present = 0;
3676
3677                 vports = lpfc_create_vport_work_array(phba);
3678                 if (vports) {
3679                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3680                                         i++) {
3681                                 if ((!(vports[i]->fc_flag &
3682                                         FC_VPORT_CVL_RCVD)) &&
3683                                         (vports[i]->port_state > LPFC_FDISC)) {
3684                                         active_vlink_present = 1;
3685                                         break;
3686                                 }
3687                         }
3688                         lpfc_destroy_vport_work_array(phba, vports);
3689                 }
3690
3691                 if (active_vlink_present) {
3692                         /*
3693                          * If there are other active VLinks present,
3694                          * re-instantiate the Vlink using FDISC.
3695                          */
3696                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3697                         shost = lpfc_shost_from_vport(vport);
3698                         spin_lock_irq(shost->host_lock);
3699                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3700                         spin_unlock_irq(shost->host_lock);
3701                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3702                         vport->port_state = LPFC_FDISC;
3703                 } else {
3704                         /*
3705                          * Otherwise, we request port to rediscover
3706                          * the entire FCF table for a fast recovery
3707                          * from possible case that the current FCF
3708                          * is no longer valid if we are not already
3709                          * in the FCF failover process.
3710                          */
3711                         spin_lock_irq(&phba->hbalock);
3712                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3713                                 spin_unlock_irq(&phba->hbalock);
3714                                 break;
3715                         }
3716                         /* Mark the fast failover process in progress */
3717                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3718                         spin_unlock_irq(&phba->hbalock);
3719                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3720                                         LOG_DISCOVERY,
3721                                         "2773 Start FCF failover per CVL, "
3722                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3723                         rc = lpfc_sli4_redisc_fcf_table(phba);
3724                         if (rc) {
3725                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3726                                                 LOG_DISCOVERY,
3727                                                 "2774 Issue FCF rediscover "
3728                                                 "mabilbox command failed, "
3729                                                 "through to CVL event\n");
3730                                 spin_lock_irq(&phba->hbalock);
3731                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3732                                 spin_unlock_irq(&phba->hbalock);
3733                                 /*
3734                                  * Last resort will be re-try on the
3735                                  * the current registered FCF entry.
3736                                  */
3737                                 lpfc_retry_pport_discovery(phba);
3738                         } else
3739                                 /*
3740                                  * Reset FCF roundrobin bmask for new
3741                                  * discovery.
3742                                  */
3743                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
3744                 }
3745                 break;
3746         default:
3747                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3748                         "0288 Unknown FCoE event type 0x%x event tag "
3749                         "0x%x\n", event_type, acqe_fip->event_tag);
3750                 break;
3751         }
3752 }
3753
3754 /**
3755  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3756  * @phba: pointer to lpfc hba data structure.
3757  * @acqe_link: pointer to the async dcbx completion queue entry.
3758  *
3759  * This routine is to handle the SLI4 asynchronous dcbx event.
3760  **/
3761 static void
3762 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3763                          struct lpfc_acqe_dcbx *acqe_dcbx)
3764 {
3765         phba->fc_eventTag = acqe_dcbx->event_tag;
3766         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3767                         "0290 The SLI4 DCBX asynchronous event is not "
3768                         "handled yet\n");
3769 }
3770
3771 /**
3772  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3773  * @phba: pointer to lpfc hba data structure.
3774  * @acqe_link: pointer to the async grp5 completion queue entry.
3775  *
3776  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3777  * is an asynchronous notified of a logical link speed change.  The Port
3778  * reports the logical link speed in units of 10Mbps.
3779  **/
3780 static void
3781 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3782                          struct lpfc_acqe_grp5 *acqe_grp5)
3783 {
3784         uint16_t prev_ll_spd;
3785
3786         phba->fc_eventTag = acqe_grp5->event_tag;
3787         phba->fcoe_eventtag = acqe_grp5->event_tag;
3788         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3789         phba->sli4_hba.link_state.logical_speed =
3790                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3791         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3792                         "2789 GRP5 Async Event: Updating logical link speed "
3793                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3794                         (phba->sli4_hba.link_state.logical_speed*10));
3795 }
3796
3797 /**
3798  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3799  * @phba: pointer to lpfc hba data structure.
3800  *
3801  * This routine is invoked by the worker thread to process all the pending
3802  * SLI4 asynchronous events.
3803  **/
3804 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3805 {
3806         struct lpfc_cq_event *cq_event;
3807
3808         /* First, declare the async event has been handled */
3809         spin_lock_irq(&phba->hbalock);
3810         phba->hba_flag &= ~ASYNC_EVENT;
3811         spin_unlock_irq(&phba->hbalock);
3812         /* Now, handle all the async events */
3813         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3814                 /* Get the first event from the head of the event queue */
3815                 spin_lock_irq(&phba->hbalock);
3816                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3817                                  cq_event, struct lpfc_cq_event, list);
3818                 spin_unlock_irq(&phba->hbalock);
3819                 /* Process the asynchronous event */
3820                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3821                 case LPFC_TRAILER_CODE_LINK:
3822                         lpfc_sli4_async_link_evt(phba,
3823                                                  &cq_event->cqe.acqe_link);
3824                         break;
3825                 case LPFC_TRAILER_CODE_FCOE:
3826                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3827                         break;
3828                 case LPFC_TRAILER_CODE_DCBX:
3829                         lpfc_sli4_async_dcbx_evt(phba,
3830                                                  &cq_event->cqe.acqe_dcbx);
3831                         break;
3832                 case LPFC_TRAILER_CODE_GRP5:
3833                         lpfc_sli4_async_grp5_evt(phba,
3834                                                  &cq_event->cqe.acqe_grp5);
3835                         break;
3836                 case LPFC_TRAILER_CODE_FC:
3837                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3838                         break;
3839                 case LPFC_TRAILER_CODE_SLI:
3840                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3841                         break;
3842                 default:
3843                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3844                                         "1804 Invalid asynchrous event code: "
3845                                         "x%x\n", bf_get(lpfc_trailer_code,
3846                                         &cq_event->cqe.mcqe_cmpl));
3847                         break;
3848                 }
3849                 /* Free the completion event processed to the free pool */
3850                 lpfc_sli4_cq_event_release(phba, cq_event);
3851         }
3852 }
3853
3854 /**
3855  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3856  * @phba: pointer to lpfc hba data structure.
3857  *
3858  * This routine is invoked by the worker thread to process FCF table
3859  * rediscovery pending completion event.
3860  **/
3861 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3862 {
3863         int rc;
3864
3865         spin_lock_irq(&phba->hbalock);
3866         /* Clear FCF rediscovery timeout event */
3867         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3868         /* Clear driver fast failover FCF record flag */
3869         phba->fcf.failover_rec.flag = 0;
3870         /* Set state for FCF fast failover */
3871         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3872         spin_unlock_irq(&phba->hbalock);
3873
3874         /* Scan FCF table from the first entry to re-discover SAN */
3875         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3876                         "2777 Start post-quiescent FCF table scan\n");
3877         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3878         if (rc)
3879                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3880                                 "2747 Issue FCF scan read FCF mailbox "
3881                                 "command failed 0x%x\n", rc);
3882 }
3883
3884 /**
3885  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3886  * @phba: pointer to lpfc hba data structure.
3887  * @dev_grp: The HBA PCI-Device group number.
3888  *
3889  * This routine is invoked to set up the per HBA PCI-Device group function
3890  * API jump table entries.
3891  *
3892  * Return: 0 if success, otherwise -ENODEV
3893  **/
3894 int
3895 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3896 {
3897         int rc;
3898
3899         /* Set up lpfc PCI-device group */
3900         phba->pci_dev_grp = dev_grp;
3901
3902         /* The LPFC_PCI_DEV_OC uses SLI4 */
3903         if (dev_grp == LPFC_PCI_DEV_OC)
3904                 phba->sli_rev = LPFC_SLI_REV4;
3905
3906         /* Set up device INIT API function jump table */
3907         rc = lpfc_init_api_table_setup(phba, dev_grp);
3908         if (rc)
3909                 return -ENODEV;
3910         /* Set up SCSI API function jump table */
3911         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3912         if (rc)
3913                 return -ENODEV;
3914         /* Set up SLI API function jump table */
3915         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3916         if (rc)
3917                 return -ENODEV;
3918         /* Set up MBOX API function jump table */
3919         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3920         if (rc)
3921                 return -ENODEV;
3922
3923         return 0;
3924 }
3925
3926 /**
3927  * lpfc_log_intr_mode - Log the active interrupt mode
3928  * @phba: pointer to lpfc hba data structure.
3929  * @intr_mode: active interrupt mode adopted.
3930  *
3931  * This routine it invoked to log the currently used active interrupt mode
3932  * to the device.
3933  **/
3934 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3935 {
3936         switch (intr_mode) {
3937         case 0:
3938                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3939                                 "0470 Enable INTx interrupt mode.\n");
3940                 break;
3941         case 1:
3942                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3943                                 "0481 Enabled MSI interrupt mode.\n");
3944                 break;
3945         case 2:
3946                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3947                                 "0480 Enabled MSI-X interrupt mode.\n");
3948                 break;
3949         default:
3950                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3951                                 "0482 Illegal interrupt mode.\n");
3952                 break;
3953         }
3954         return;
3955 }
3956
3957 /**
3958  * lpfc_enable_pci_dev - Enable a generic PCI device.
3959  * @phba: pointer to lpfc hba data structure.
3960  *
3961  * This routine is invoked to enable the PCI device that is common to all
3962  * PCI devices.
3963  *
3964  * Return codes
3965  *      0 - successful
3966  *      other values - error
3967  **/
3968 static int
3969 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3970 {
3971         struct pci_dev *pdev;
3972         int bars = 0;
3973
3974         /* Obtain PCI device reference */
3975         if (!phba->pcidev)
3976                 goto out_error;
3977         else
3978                 pdev = phba->pcidev;
3979         /* Select PCI BARs */
3980         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3981         /* Enable PCI device */
3982         if (pci_enable_device_mem(pdev))
3983                 goto out_error;
3984         /* Request PCI resource for the device */
3985         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3986                 goto out_disable_device;
3987         /* Set up device as PCI master and save state for EEH */
3988         pci_set_master(pdev);
3989         pci_try_set_mwi(pdev);
3990         pci_save_state(pdev);
3991
3992         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3993         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3994                 pdev->needs_freset = 1;
3995
3996         return 0;
3997
3998 out_disable_device:
3999         pci_disable_device(pdev);
4000 out_error:
4001         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4002                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4003         return -ENODEV;
4004 }
4005
4006 /**
4007  * lpfc_disable_pci_dev - Disable a generic PCI device.
4008  * @phba: pointer to lpfc hba data structure.
4009  *
4010  * This routine is invoked to disable the PCI device that is common to all
4011  * PCI devices.
4012  **/
4013 static void
4014 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4015 {
4016         struct pci_dev *pdev;
4017         int bars;
4018
4019         /* Obtain PCI device reference */
4020         if (!phba->pcidev)
4021                 return;
4022         else
4023                 pdev = phba->pcidev;
4024         /* Select PCI BARs */
4025         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4026         /* Release PCI resource and disable PCI device */
4027         pci_release_selected_regions(pdev, bars);
4028         pci_disable_device(pdev);
4029         /* Null out PCI private reference to driver */
4030         pci_set_drvdata(pdev, NULL);
4031
4032         return;
4033 }
4034
4035 /**
4036  * lpfc_reset_hba - Reset a hba
4037  * @phba: pointer to lpfc hba data structure.
4038  *
4039  * This routine is invoked to reset a hba device. It brings the HBA
4040  * offline, performs a board restart, and then brings the board back
4041  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4042  * on outstanding mailbox commands.
4043  **/
4044 void
4045 lpfc_reset_hba(struct lpfc_hba *phba)
4046 {
4047         /* If resets are disabled then set error state and return. */
4048         if (!phba->cfg_enable_hba_reset) {
4049                 phba->link_state = LPFC_HBA_ERROR;
4050                 return;
4051         }
4052         lpfc_offline_prep(phba);
4053         lpfc_offline(phba);
4054         lpfc_sli_brdrestart(phba);
4055         lpfc_online(phba);
4056         lpfc_unblock_mgmt_io(phba);
4057 }
4058
4059 /**
4060  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4061  * @phba: pointer to lpfc hba data structure.
4062  *
4063  * This function enables the PCI SR-IOV virtual functions to a physical
4064  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4065  * enable the number of virtual functions to the physical function. As
4066  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4067  * API call does not considered as an error condition for most of the device.
4068  **/
4069 uint16_t
4070 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4071 {
4072         struct pci_dev *pdev = phba->pcidev;
4073         uint16_t nr_virtfn;
4074         int pos;
4075
4076         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4077         if (pos == 0)
4078                 return 0;
4079
4080         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4081         return nr_virtfn;
4082 }
4083
4084 /**
4085  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4086  * @phba: pointer to lpfc hba data structure.
4087  * @nr_vfn: number of virtual functions to be enabled.
4088  *
4089  * This function enables the PCI SR-IOV virtual functions to a physical
4090  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4091  * enable the number of virtual functions to the physical function. As
4092  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4093  * API call does not considered as an error condition for most of the device.
4094  **/
4095 int
4096 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4097 {
4098         struct pci_dev *pdev = phba->pcidev;
4099         uint16_t max_nr_vfn;
4100         int rc;
4101
4102         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4103         if (nr_vfn > max_nr_vfn) {
4104                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4105                                 "3057 Requested vfs (%d) greater than "
4106                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4107                 return -EINVAL;
4108         }
4109
4110         rc = pci_enable_sriov(pdev, nr_vfn);
4111         if (rc) {
4112                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4113                                 "2806 Failed to enable sriov on this device "
4114                                 "with vfn number nr_vf:%d, rc:%d\n",
4115                                 nr_vfn, rc);
4116         } else
4117                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4118                                 "2807 Successful enable sriov on this device "
4119                                 "with vfn number nr_vf:%d\n", nr_vfn);
4120         return rc;
4121 }
4122
4123 /**
4124  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4125  * @phba: pointer to lpfc hba data structure.
4126  *
4127  * This routine is invoked to set up the driver internal resources specific to
4128  * support the SLI-3 HBA device it attached to.
4129  *
4130  * Return codes
4131  *      0 - successful
4132  *      other values - error
4133  **/
4134 static int
4135 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4136 {
4137         struct lpfc_sli *psli;
4138         int rc;
4139
4140         /*
4141          * Initialize timers used by driver
4142          */
4143
4144         /* Heartbeat timer */
4145         init_timer(&phba->hb_tmofunc);
4146         phba->hb_tmofunc.function = lpfc_hb_timeout;
4147         phba->hb_tmofunc.data = (unsigned long)phba;
4148
4149         psli = &phba->sli;
4150         /* MBOX heartbeat timer */
4151         init_timer(&psli->mbox_tmo);
4152         psli->mbox_tmo.function = lpfc_mbox_timeout;
4153         psli->mbox_tmo.data = (unsigned long) phba;
4154         /* FCP polling mode timer */
4155         init_timer(&phba->fcp_poll_timer);
4156         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4157         phba->fcp_poll_timer.data = (unsigned long) phba;
4158         /* Fabric block timer */
4159         init_timer(&phba->fabric_block_timer);
4160         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4161         phba->fabric_block_timer.data = (unsigned long) phba;
4162         /* EA polling mode timer */
4163         init_timer(&phba->eratt_poll);
4164         phba->eratt_poll.function = lpfc_poll_eratt;
4165         phba->eratt_poll.data = (unsigned long) phba;
4166
4167         /* Host attention work mask setup */
4168         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4169         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4170
4171         /* Get all the module params for configuring this host */
4172         lpfc_get_cfgparam(phba);
4173         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4174                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4175                 /* check for menlo minimum sg count */
4176                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4177                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4178         }
4179
4180         /*
4181          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4182          * used to create the sg_dma_buf_pool must be dynamically calculated.
4183          * 2 segments are added since the IOCB needs a command and response bde.
4184          */
4185         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4186                 sizeof(struct fcp_rsp) +
4187                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4188
4189         if (phba->cfg_enable_bg) {
4190                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4191                 phba->cfg_sg_dma_buf_size +=
4192                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4193         }
4194
4195         /* Also reinitialize the host templates with new values. */
4196         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4197         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4198
4199         phba->max_vpi = LPFC_MAX_VPI;
4200         /* This will be set to correct value after config_port mbox */
4201         phba->max_vports = 0;
4202
4203         /*
4204          * Initialize the SLI Layer to run with lpfc HBAs.
4205          */
4206         lpfc_sli_setup(phba);
4207         lpfc_sli_queue_setup(phba);
4208
4209         /* Allocate device driver memory */
4210         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4211                 return -ENOMEM;
4212
4213         /*
4214          * Enable sr-iov virtual functions if supported and configured
4215          * through the module parameter.
4216          */
4217         if (phba->cfg_sriov_nr_virtfn > 0) {
4218                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4219                                                  phba->cfg_sriov_nr_virtfn);
4220                 if (rc) {
4221                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4222                                         "2808 Requested number of SR-IOV "
4223                                         "virtual functions (%d) is not "
4224                                         "supported\n",
4225                                         phba->cfg_sriov_nr_virtfn);
4226                         phba->cfg_sriov_nr_virtfn = 0;
4227                 }
4228         }
4229
4230         return 0;
4231 }
4232
4233 /**
4234  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4235  * @phba: pointer to lpfc hba data structure.
4236  *
4237  * This routine is invoked to unset the driver internal resources set up
4238  * specific for supporting the SLI-3 HBA device it attached to.
4239  **/
4240 static void
4241 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4242 {
4243         /* Free device driver memory allocated */
4244         lpfc_mem_free_all(phba);
4245
4246         return;
4247 }
4248
4249 /**
4250  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4251  * @phba: pointer to lpfc hba data structure.
4252  *
4253  * This routine is invoked to set up the driver internal resources specific to
4254  * support the SLI-4 HBA device it attached to.
4255  *
4256  * Return codes
4257  *      0 - successful
4258  *      other values - error
4259  **/
4260 static int
4261 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4262 {
4263         struct lpfc_sli *psli;
4264         LPFC_MBOXQ_t *mboxq;
4265         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4266         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4267         struct lpfc_mqe *mqe;
4268         int longs, sli_family;
4269
4270         /* Before proceed, wait for POST done and device ready */
4271         rc = lpfc_sli4_post_status_check(phba);
4272         if (rc)
4273                 return -ENODEV;
4274
4275         /*
4276          * Initialize timers used by driver
4277          */
4278
4279         /* Heartbeat timer */
4280         init_timer(&phba->hb_tmofunc);
4281         phba->hb_tmofunc.function = lpfc_hb_timeout;
4282         phba->hb_tmofunc.data = (unsigned long)phba;
4283         init_timer(&phba->rrq_tmr);
4284         phba->rrq_tmr.function = lpfc_rrq_timeout;
4285         phba->rrq_tmr.data = (unsigned long)phba;
4286
4287         psli = &phba->sli;
4288         /* MBOX heartbeat timer */
4289         init_timer(&psli->mbox_tmo);
4290         psli->mbox_tmo.function = lpfc_mbox_timeout;
4291         psli->mbox_tmo.data = (unsigned long) phba;
4292         /* Fabric block timer */
4293         init_timer(&phba->fabric_block_timer);
4294         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4295         phba->fabric_block_timer.data = (unsigned long) phba;
4296         /* EA polling mode timer */
4297         init_timer(&phba->eratt_poll);
4298         phba->eratt_poll.function = lpfc_poll_eratt;
4299         phba->eratt_poll.data = (unsigned long) phba;
4300         /* FCF rediscover timer */
4301         init_timer(&phba->fcf.redisc_wait);
4302         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4303         phba->fcf.redisc_wait.data = (unsigned long)phba;
4304
4305         /*
4306          * Control structure for handling external multi-buffer mailbox
4307          * command pass-through.
4308          */
4309         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4310                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4311         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4312
4313         /*
4314          * We need to do a READ_CONFIG mailbox command here before
4315          * calling lpfc_get_cfgparam. For VFs this will report the
4316          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4317          * All of the resources allocated
4318          * for this Port are tied to these values.
4319          */
4320         /* Get all the module params for configuring this host */
4321         lpfc_get_cfgparam(phba);
4322         phba->max_vpi = LPFC_MAX_VPI;
4323         /* This will be set to correct value after the read_config mbox */
4324         phba->max_vports = 0;
4325
4326         /* Program the default value of vlan_id and fc_map */
4327         phba->valid_vlan = 0;
4328         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4329         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4330         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4331
4332         /*
4333          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4334          * used to create the sg_dma_buf_pool must be dynamically calculated.
4335          * 2 segments are added since the IOCB needs a command and response bde.
4336          * To insure that the scsi sgl does not cross a 4k page boundary only
4337          * sgl sizes of must be a power of 2.
4338          */
4339         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4340                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4341
4342         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4343         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4344         switch (sli_family) {
4345         case LPFC_SLI_INTF_FAMILY_BE2:
4346         case LPFC_SLI_INTF_FAMILY_BE3:
4347                 /* There is a single hint for BE - 2 pages per BPL. */
4348                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4349                     LPFC_SLI_INTF_SLI_HINT1_1)
4350                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4351                 break;
4352         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4353         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4354         default:
4355                 break;
4356         }
4357         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4358              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4359              dma_buf_size = dma_buf_size << 1)
4360                 ;
4361         if (dma_buf_size == max_buf_size)
4362                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4363                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4364                         (2 * sizeof(struct sli4_sge))) /
4365                                 sizeof(struct sli4_sge);
4366         phba->cfg_sg_dma_buf_size = dma_buf_size;
4367
4368         /* Initialize buffer queue management fields */
4369         hbq_count = lpfc_sli_hbq_count();
4370         for (i = 0; i < hbq_count; ++i)
4371                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4372         INIT_LIST_HEAD(&phba->rb_pend_list);
4373         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4374         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4375
4376         /*
4377          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4378          */
4379         /* Initialize the Abort scsi buffer list used by driver */
4380         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4381         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4382         /* This abort list used by worker thread */
4383         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4384
4385         /*
4386          * Initialize driver internal slow-path work queues
4387          */
4388
4389         /* Driver internel slow-path CQ Event pool */
4390         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4391         /* Response IOCB work queue list */
4392         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4393         /* Asynchronous event CQ Event work queue list */
4394         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4395         /* Fast-path XRI aborted CQ Event work queue list */
4396         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4397         /* Slow-path XRI aborted CQ Event work queue list */
4398         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4399         /* Receive queue CQ Event work queue list */
4400         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4401
4402         /* Initialize extent block lists. */
4403         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4404         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4405         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4406         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4407
4408         /* Initialize the driver internal SLI layer lists. */
4409         lpfc_sli_setup(phba);
4410         lpfc_sli_queue_setup(phba);
4411
4412         /* Allocate device driver memory */
4413         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4414         if (rc)
4415                 return -ENOMEM;
4416
4417         /* IF Type 2 ports get initialized now. */
4418         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4419             LPFC_SLI_INTF_IF_TYPE_2) {
4420                 rc = lpfc_pci_function_reset(phba);
4421                 if (unlikely(rc))
4422                         return -ENODEV;
4423         }
4424
4425         /* Create the bootstrap mailbox command */
4426         rc = lpfc_create_bootstrap_mbox(phba);
4427         if (unlikely(rc))
4428                 goto out_free_mem;
4429
4430         /* Set up the host's endian order with the device. */
4431         rc = lpfc_setup_endian_order(phba);
4432         if (unlikely(rc))
4433                 goto out_free_bsmbx;
4434
4435         /* Set up the hba's configuration parameters. */
4436         rc = lpfc_sli4_read_config(phba);
4437         if (unlikely(rc))
4438                 goto out_free_bsmbx;
4439
4440         /* IF Type 0 ports get initialized now. */
4441         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4442             LPFC_SLI_INTF_IF_TYPE_0) {
4443                 rc = lpfc_pci_function_reset(phba);
4444                 if (unlikely(rc))
4445                         goto out_free_bsmbx;
4446         }
4447
4448         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4449                                                        GFP_KERNEL);
4450         if (!mboxq) {
4451                 rc = -ENOMEM;
4452                 goto out_free_bsmbx;
4453         }
4454
4455         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4456         lpfc_supported_pages(mboxq);
4457         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4458         if (!rc) {
4459                 mqe = &mboxq->u.mqe;
4460                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4461                        LPFC_MAX_SUPPORTED_PAGES);
4462                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4463                         switch (pn_page[i]) {
4464                         case LPFC_SLI4_PARAMETERS:
4465                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4466                                 break;
4467                         default:
4468                                 break;
4469                         }
4470                 }
4471                 /* Read the port's SLI4 Parameters capabilities if supported. */
4472                 if (phba->sli4_hba.pc_sli4_params.supported)
4473                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4474                 if (rc) {
4475                         mempool_free(mboxq, phba->mbox_mem_pool);
4476                         rc = -EIO;
4477                         goto out_free_bsmbx;
4478                 }
4479         }
4480         /*
4481          * Get sli4 parameters that override parameters from Port capabilities.
4482          * If this call fails, it isn't critical unless the SLI4 parameters come
4483          * back in conflict.
4484          */
4485         rc = lpfc_get_sli4_parameters(phba, mboxq);
4486         if (rc) {
4487                 if (phba->sli4_hba.extents_in_use &&
4488                     phba->sli4_hba.rpi_hdrs_in_use) {
4489                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4490                                 "2999 Unsupported SLI4 Parameters "
4491                                 "Extents and RPI headers enabled.\n");
4492                         goto out_free_bsmbx;
4493                 }
4494         }
4495         mempool_free(mboxq, phba->mbox_mem_pool);
4496         /* Verify all the SLI4 queues */
4497         rc = lpfc_sli4_queue_verify(phba);
4498         if (rc)
4499                 goto out_free_bsmbx;
4500
4501         /* Create driver internal CQE event pool */
4502         rc = lpfc_sli4_cq_event_pool_create(phba);
4503         if (rc)
4504                 goto out_free_bsmbx;
4505
4506         /* Initialize and populate the iocb list per host */
4507         rc = lpfc_init_sgl_list(phba);
4508         if (rc) {
4509                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4510                                 "1400 Failed to initialize sgl list.\n");
4511                 goto out_destroy_cq_event_pool;
4512         }
4513         rc = lpfc_init_active_sgl_array(phba);
4514         if (rc) {
4515                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4516                                 "1430 Failed to initialize sgl list.\n");
4517                 goto out_free_sgl_list;
4518         }
4519         rc = lpfc_sli4_init_rpi_hdrs(phba);
4520         if (rc) {
4521                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4522                                 "1432 Failed to initialize rpi headers.\n");
4523                 goto out_free_active_sgl;
4524         }
4525
4526         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4527         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4528         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4529                                          GFP_KERNEL);
4530         if (!phba->fcf.fcf_rr_bmask) {
4531                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4532                                 "2759 Failed allocate memory for FCF round "
4533                                 "robin failover bmask\n");
4534                 rc = -ENOMEM;
4535                 goto out_remove_rpi_hdrs;
4536         }
4537
4538         /*
4539          * The cfg_fcp_eq_count can be zero whenever there is exactly one
4540          * interrupt vector.  This is not an error
4541          */
4542         if (phba->cfg_fcp_eq_count) {
4543                 phba->sli4_hba.fcp_eq_hdl =
4544                                 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4545                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4546                 if (!phba->sli4_hba.fcp_eq_hdl) {
4547                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4548                                         "2572 Failed allocate memory for "
4549                                         "fast-path per-EQ handle array\n");
4550                         rc = -ENOMEM;
4551                         goto out_free_fcf_rr_bmask;
4552                 }
4553         }
4554
4555         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4556                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4557         if (!phba->sli4_hba.msix_entries) {
4558                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4559                                 "2573 Failed allocate memory for msi-x "
4560                                 "interrupt vector entries\n");
4561                 rc = -ENOMEM;
4562                 goto out_free_fcp_eq_hdl;
4563         }
4564
4565         /*
4566          * Enable sr-iov virtual functions if supported and configured
4567          * through the module parameter.
4568          */
4569         if (phba->cfg_sriov_nr_virtfn > 0) {
4570                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4571                                                  phba->cfg_sriov_nr_virtfn);
4572                 if (rc) {
4573                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4574                                         "3020 Requested number of SR-IOV "
4575                                         "virtual functions (%d) is not "
4576                                         "supported\n",
4577                                         phba->cfg_sriov_nr_virtfn);
4578                         phba->cfg_sriov_nr_virtfn = 0;
4579                 }
4580         }
4581
4582         return 0;
4583
4584 out_free_fcp_eq_hdl:
4585         kfree(phba->sli4_hba.fcp_eq_hdl);
4586 out_free_fcf_rr_bmask:
4587         kfree(phba->fcf.fcf_rr_bmask);
4588 out_remove_rpi_hdrs:
4589         lpfc_sli4_remove_rpi_hdrs(phba);
4590 out_free_active_sgl:
4591         lpfc_free_active_sgl(phba);
4592 out_free_sgl_list:
4593         lpfc_free_sgl_list(phba);
4594 out_destroy_cq_event_pool:
4595         lpfc_sli4_cq_event_pool_destroy(phba);
4596 out_free_bsmbx:
4597         lpfc_destroy_bootstrap_mbox(phba);
4598 out_free_mem:
4599         lpfc_mem_free(phba);
4600         return rc;
4601 }
4602
4603 /**
4604  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4605  * @phba: pointer to lpfc hba data structure.
4606  *
4607  * This routine is invoked to unset the driver internal resources set up
4608  * specific for supporting the SLI-4 HBA device it attached to.
4609  **/
4610 static void
4611 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4612 {
4613         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4614
4615         /* Free memory allocated for msi-x interrupt vector entries */
4616         kfree(phba->sli4_hba.msix_entries);
4617
4618         /* Free memory allocated for fast-path work queue handles */
4619         kfree(phba->sli4_hba.fcp_eq_hdl);
4620
4621         /* Free the allocated rpi headers. */
4622         lpfc_sli4_remove_rpi_hdrs(phba);
4623         lpfc_sli4_remove_rpis(phba);
4624
4625         /* Free eligible FCF index bmask */
4626         kfree(phba->fcf.fcf_rr_bmask);
4627
4628         /* Free the ELS sgl list */
4629         lpfc_free_active_sgl(phba);
4630         lpfc_free_sgl_list(phba);
4631
4632         /* Free the SCSI sgl management array */
4633         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4634
4635         /* Free the completion queue EQ event pool */
4636         lpfc_sli4_cq_event_release_all(phba);
4637         lpfc_sli4_cq_event_pool_destroy(phba);
4638
4639         /* Release resource identifiers. */
4640         lpfc_sli4_dealloc_resource_identifiers(phba);
4641
4642         /* Free the bsmbx region. */
4643         lpfc_destroy_bootstrap_mbox(phba);
4644
4645         /* Free the SLI Layer memory with SLI4 HBAs */
4646         lpfc_mem_free_all(phba);
4647
4648         /* Free the current connect table */
4649         list_for_each_entry_safe(conn_entry, next_conn_entry,
4650                 &phba->fcf_conn_rec_list, list) {
4651                 list_del_init(&conn_entry->list);
4652                 kfree(conn_entry);
4653         }
4654
4655         return;
4656 }
4657
4658 /**
4659  * lpfc_init_api_table_setup - Set up init api function jump table
4660  * @phba: The hba struct for which this call is being executed.
4661  * @dev_grp: The HBA PCI-Device group number.
4662  *
4663  * This routine sets up the device INIT interface API function jump table
4664  * in @phba struct.
4665  *
4666  * Returns: 0 - success, -ENODEV - failure.
4667  **/
4668 int
4669 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4670 {
4671         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4672         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4673         phba->lpfc_selective_reset = lpfc_selective_reset;
4674         switch (dev_grp) {
4675         case LPFC_PCI_DEV_LP:
4676                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4677                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4678                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4679                 break;
4680         case LPFC_PCI_DEV_OC:
4681                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4682                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4683                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4684                 break;
4685         default:
4686                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4687                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4688                                 dev_grp);
4689                 return -ENODEV;
4690                 break;
4691         }
4692         return 0;
4693 }
4694
4695 /**
4696  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4697  * @phba: pointer to lpfc hba data structure.
4698  *
4699  * This routine is invoked to set up the driver internal resources before the
4700  * device specific resource setup to support the HBA device it attached to.
4701  *
4702  * Return codes
4703  *      0 - successful
4704  *      other values - error
4705  **/
4706 static int
4707 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4708 {
4709         /*
4710          * Driver resources common to all SLI revisions
4711          */
4712         atomic_set(&phba->fast_event_count, 0);
4713         spin_lock_init(&phba->hbalock);
4714
4715         /* Initialize ndlp management spinlock */
4716         spin_lock_init(&phba->ndlp_lock);
4717
4718         INIT_LIST_HEAD(&phba->port_list);
4719         INIT_LIST_HEAD(&phba->work_list);
4720         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4721
4722         /* Initialize the wait queue head for the kernel thread */
4723         init_waitqueue_head(&phba->work_waitq);
4724
4725         /* Initialize the scsi buffer list used by driver for scsi IO */
4726         spin_lock_init(&phba->scsi_buf_list_lock);
4727         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4728
4729         /* Initialize the fabric iocb list */
4730         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4731
4732         /* Initialize list to save ELS buffers */
4733         INIT_LIST_HEAD(&phba->elsbuf);
4734
4735         /* Initialize FCF connection rec list */
4736         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4737
4738         return 0;
4739 }
4740
4741 /**
4742  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4743  * @phba: pointer to lpfc hba data structure.
4744  *
4745  * This routine is invoked to set up the driver internal resources after the
4746  * device specific resource setup to support the HBA device it attached to.
4747  *
4748  * Return codes
4749  *      0 - successful
4750  *      other values - error
4751  **/
4752 static int
4753 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4754 {
4755         int error;
4756
4757         /* Startup the kernel thread for this host adapter. */
4758         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4759                                           "lpfc_worker_%d", phba->brd_no);
4760         if (IS_ERR(phba->worker_thread)) {
4761                 error = PTR_ERR(phba->worker_thread);
4762                 return error;
4763         }
4764
4765         return 0;
4766 }
4767
4768 /**
4769  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4770  * @phba: pointer to lpfc hba data structure.
4771  *
4772  * This routine is invoked to unset the driver internal resources set up after
4773  * the device specific resource setup for supporting the HBA device it
4774  * attached to.
4775  **/
4776 static void
4777 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4778 {
4779         /* Stop kernel worker thread */
4780         kthread_stop(phba->worker_thread);
4781 }
4782
4783 /**
4784  * lpfc_free_iocb_list - Free iocb list.
4785  * @phba: pointer to lpfc hba data structure.
4786  *
4787  * This routine is invoked to free the driver's IOCB list and memory.
4788  **/
4789 static void
4790 lpfc_free_iocb_list(struct lpfc_hba *phba)
4791 {
4792         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4793
4794         spin_lock_irq(&phba->hbalock);
4795         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4796                                  &phba->lpfc_iocb_list, list) {
4797                 list_del(&iocbq_entry->list);
4798                 kfree(iocbq_entry);
4799                 phba->total_iocbq_bufs--;
4800         }
4801         spin_unlock_irq(&phba->hbalock);
4802
4803         return;
4804 }
4805
4806 /**
4807  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4808  * @phba: pointer to lpfc hba data structure.
4809  *
4810  * This routine is invoked to allocate and initizlize the driver's IOCB
4811  * list and set up the IOCB tag array accordingly.
4812  *
4813  * Return codes
4814  *      0 - successful
4815  *      other values - error
4816  **/
4817 static int
4818 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4819 {
4820         struct lpfc_iocbq *iocbq_entry = NULL;
4821         uint16_t iotag;
4822         int i;
4823
4824         /* Initialize and populate the iocb list per host.  */
4825         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4826         for (i = 0; i < iocb_count; i++) {
4827                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4828                 if (iocbq_entry == NULL) {
4829                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4830                                 "expected %d count. Unloading driver.\n",
4831                                 __func__, i, LPFC_IOCB_LIST_CNT);
4832                         goto out_free_iocbq;
4833                 }
4834
4835                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4836                 if (iotag == 0) {
4837                         kfree(iocbq_entry);
4838                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4839                                 "Unloading driver.\n", __func__);
4840                         goto out_free_iocbq;
4841                 }
4842                 iocbq_entry->sli4_lxritag = NO_XRI;
4843                 iocbq_entry->sli4_xritag = NO_XRI;
4844
4845                 spin_lock_irq(&phba->hbalock);
4846                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4847                 phba->total_iocbq_bufs++;
4848                 spin_unlock_irq(&phba->hbalock);
4849         }
4850
4851         return 0;
4852
4853 out_free_iocbq:
4854         lpfc_free_iocb_list(phba);
4855
4856         return -ENOMEM;
4857 }
4858
4859 /**
4860  * lpfc_free_sgl_list - Free sgl list.
4861  * @phba: pointer to lpfc hba data structure.
4862  *
4863  * This routine is invoked to free the driver's sgl list and memory.
4864  **/
4865 static void
4866 lpfc_free_sgl_list(struct lpfc_hba *phba)
4867 {
4868         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4869         LIST_HEAD(sglq_list);
4870
4871         spin_lock_irq(&phba->hbalock);
4872         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4873         spin_unlock_irq(&phba->hbalock);
4874
4875         list_for_each_entry_safe(sglq_entry, sglq_next,
4876                                  &sglq_list, list) {
4877                 list_del(&sglq_entry->list);
4878                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4879                 kfree(sglq_entry);
4880                 phba->sli4_hba.total_sglq_bufs--;
4881         }
4882         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4883 }
4884
4885 /**
4886  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4887  * @phba: pointer to lpfc hba data structure.
4888  *
4889  * This routine is invoked to allocate the driver's active sgl memory.
4890  * This array will hold the sglq_entry's for active IOs.
4891  **/
4892 static int
4893 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4894 {
4895         int size;
4896         size = sizeof(struct lpfc_sglq *);
4897         size *= phba->sli4_hba.max_cfg_param.max_xri;
4898
4899         phba->sli4_hba.lpfc_sglq_active_list =
4900                 kzalloc(size, GFP_KERNEL);
4901         if (!phba->sli4_hba.lpfc_sglq_active_list)
4902                 return -ENOMEM;
4903         return 0;
4904 }
4905
4906 /**
4907  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4908  * @phba: pointer to lpfc hba data structure.
4909  *
4910  * This routine is invoked to walk through the array of active sglq entries
4911  * and free all of the resources.
4912  * This is just a place holder for now.
4913  **/
4914 static void
4915 lpfc_free_active_sgl(struct lpfc_hba *phba)
4916 {
4917         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4918 }
4919
4920 /**
4921  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4922  * @phba: pointer to lpfc hba data structure.
4923  *
4924  * This routine is invoked to allocate and initizlize the driver's sgl
4925  * list and set up the sgl xritag tag array accordingly.
4926  *
4927  * Return codes
4928  *      0 - successful
4929  *      other values - error
4930  **/
4931 static int
4932 lpfc_init_sgl_list(struct lpfc_hba *phba)
4933 {
4934         struct lpfc_sglq *sglq_entry = NULL;
4935         int i;
4936         int els_xri_cnt;
4937
4938         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4939         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4940                                 "2400 ELS XRI count %d.\n",
4941                                 els_xri_cnt);
4942         /* Initialize and populate the sglq list per host/VF. */
4943         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4944         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4945
4946         /* Sanity check on XRI management */
4947         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4948                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4949                                 "2562 No room left for SCSI XRI allocation: "
4950                                 "max_xri=%d, els_xri=%d\n",
4951                                 phba->sli4_hba.max_cfg_param.max_xri,
4952                                 els_xri_cnt);
4953                 return -ENOMEM;
4954         }
4955
4956         /* Allocate memory for the ELS XRI management array */
4957         phba->sli4_hba.lpfc_els_sgl_array =
4958                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4959                         GFP_KERNEL);
4960
4961         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4962                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4963                                 "2401 Failed to allocate memory for ELS "
4964                                 "XRI management array of size %d.\n",
4965                                 els_xri_cnt);
4966                 return -ENOMEM;
4967         }
4968
4969         /* Keep the SCSI XRI into the XRI management array */
4970         phba->sli4_hba.scsi_xri_max =
4971                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4972         phba->sli4_hba.scsi_xri_cnt = 0;
4973         phba->sli4_hba.lpfc_scsi_psb_array =
4974                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4975                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4976
4977         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4978                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4979                                 "2563 Failed to allocate memory for SCSI "
4980                                 "XRI management array of size %d.\n",
4981                                 phba->sli4_hba.scsi_xri_max);
4982                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4983                 return -ENOMEM;
4984         }
4985
4986         for (i = 0; i < els_xri_cnt; i++) {
4987                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4988                 if (sglq_entry == NULL) {
4989                         printk(KERN_ERR "%s: only allocated %d sgls of "
4990                                 "expected %d count. Unloading driver.\n",
4991                                 __func__, i, els_xri_cnt);
4992                         goto out_free_mem;
4993                 }
4994
4995                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4996                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4997                 if (sglq_entry->virt == NULL) {
4998                         kfree(sglq_entry);
4999                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
5000                                 "Unloading driver.\n", __func__);
5001                         goto out_free_mem;
5002                 }
5003                 sglq_entry->sgl = sglq_entry->virt;
5004                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
5005
5006                 /* The list order is used by later block SGL registraton */
5007                 spin_lock_irq(&phba->hbalock);
5008                 sglq_entry->state = SGL_FREED;
5009                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
5010                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
5011                 phba->sli4_hba.total_sglq_bufs++;
5012                 spin_unlock_irq(&phba->hbalock);
5013         }
5014         return 0;
5015
5016 out_free_mem:
5017         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
5018         lpfc_free_sgl_list(phba);
5019         return -ENOMEM;
5020 }
5021
5022 /**
5023  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5024  * @phba: pointer to lpfc hba data structure.
5025  *
5026  * This routine is invoked to post rpi header templates to the
5027  * port for those SLI4 ports that do not support extents.  This routine
5028  * posts a PAGE_SIZE memory region to the port to hold up to
5029  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5030  * and should be called only when interrupts are disabled.
5031  *
5032  * Return codes
5033  *      0 - successful
5034  *      -ERROR - otherwise.
5035  **/
5036 int
5037 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5038 {
5039         int rc = 0;
5040         struct lpfc_rpi_hdr *rpi_hdr;
5041
5042         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5043         /*
5044          * If the SLI4 port supports extents, posting the rpi header isn't
5045          * required.  Set the expected maximum count and let the actual value
5046          * get set when extents are fully allocated.
5047          */
5048         if (!phba->sli4_hba.rpi_hdrs_in_use) {
5049                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5050                 return rc;
5051         }
5052         if (phba->sli4_hba.extents_in_use)
5053                 return -EIO;
5054
5055         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5056         if (!rpi_hdr) {
5057                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5058                                 "0391 Error during rpi post operation\n");
5059                 lpfc_sli4_remove_rpis(phba);
5060                 rc = -ENODEV;
5061         }
5062
5063         return rc;
5064 }
5065
5066 /**
5067  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5068  * @phba: pointer to lpfc hba data structure.
5069  *
5070  * This routine is invoked to allocate a single 4KB memory region to
5071  * support rpis and stores them in the phba.  This single region
5072  * provides support for up to 64 rpis.  The region is used globally
5073  * by the device.
5074  *
5075  * Returns:
5076  *   A valid rpi hdr on success.
5077  *   A NULL pointer on any failure.
5078  **/
5079 struct lpfc_rpi_hdr *
5080 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5081 {
5082         uint16_t rpi_limit, curr_rpi_range;
5083         struct lpfc_dmabuf *dmabuf;
5084         struct lpfc_rpi_hdr *rpi_hdr;
5085         uint32_t rpi_count;
5086
5087         /*
5088          * If the SLI4 port supports extents, posting the rpi header isn't
5089          * required.  Set the expected maximum count and let the actual value
5090          * get set when extents are fully allocated.
5091          */
5092         if (!phba->sli4_hba.rpi_hdrs_in_use)
5093                 return NULL;
5094         if (phba->sli4_hba.extents_in_use)
5095                 return NULL;
5096
5097         /* The limit on the logical index is just the max_rpi count. */
5098         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5099         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5100
5101         spin_lock_irq(&phba->hbalock);
5102         /*
5103          * Establish the starting RPI in this header block.  The starting
5104          * rpi is normalized to a zero base because the physical rpi is
5105          * port based.
5106          */
5107         curr_rpi_range = phba->sli4_hba.next_rpi -
5108                 phba->sli4_hba.max_cfg_param.rpi_base;
5109         spin_unlock_irq(&phba->hbalock);
5110
5111         /*
5112          * The port has a limited number of rpis. The increment here
5113          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5114          * and to allow the full max_rpi range per port.
5115          */
5116         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5117                 rpi_count = rpi_limit - curr_rpi_range;
5118         else
5119                 rpi_count = LPFC_RPI_HDR_COUNT;
5120
5121         if (!rpi_count)
5122                 return NULL;
5123         /*
5124          * First allocate the protocol header region for the port.  The
5125          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5126          */
5127         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5128         if (!dmabuf)
5129                 return NULL;
5130
5131         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5132                                           LPFC_HDR_TEMPLATE_SIZE,
5133                                           &dmabuf->phys,
5134                                           GFP_KERNEL);
5135         if (!dmabuf->virt) {
5136                 rpi_hdr = NULL;
5137                 goto err_free_dmabuf;
5138         }
5139
5140         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5141         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5142                 rpi_hdr = NULL;
5143                 goto err_free_coherent;
5144         }
5145
5146         /* Save the rpi header data for cleanup later. */
5147         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5148         if (!rpi_hdr)
5149                 goto err_free_coherent;
5150
5151         rpi_hdr->dmabuf = dmabuf;
5152         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5153         rpi_hdr->page_count = 1;
5154         spin_lock_irq(&phba->hbalock);
5155
5156         /* The rpi_hdr stores the logical index only. */
5157         rpi_hdr->start_rpi = curr_rpi_range;
5158         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5159
5160         /*
5161          * The next_rpi stores the next logical module-64 rpi value used
5162          * to post physical rpis in subsequent rpi postings.
5163          */
5164         phba->sli4_hba.next_rpi += rpi_count;
5165         spin_unlock_irq(&phba->hbalock);
5166         return rpi_hdr;
5167
5168  err_free_coherent:
5169         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5170                           dmabuf->virt, dmabuf->phys);
5171  err_free_dmabuf:
5172         kfree(dmabuf);
5173         return NULL;
5174 }
5175
5176 /**
5177  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5178  * @phba: pointer to lpfc hba data structure.
5179  *
5180  * This routine is invoked to remove all memory resources allocated
5181  * to support rpis for SLI4 ports not supporting extents. This routine
5182  * presumes the caller has released all rpis consumed by fabric or port
5183  * logins and is prepared to have the header pages removed.
5184  **/
5185 void
5186 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5187 {
5188         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5189
5190         if (!phba->sli4_hba.rpi_hdrs_in_use)
5191                 goto exit;
5192
5193         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5194                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5195                 list_del(&rpi_hdr->list);
5196                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5197                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5198                 kfree(rpi_hdr->dmabuf);
5199                 kfree(rpi_hdr);
5200         }
5201  exit:
5202         /* There are no rpis available to the port now. */
5203         phba->sli4_hba.next_rpi = 0;
5204 }
5205
5206 /**
5207  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5208  * @pdev: pointer to pci device data structure.
5209  *
5210  * This routine is invoked to allocate the driver hba data structure for an
5211  * HBA device. If the allocation is successful, the phba reference to the
5212  * PCI device data structure is set.
5213  *
5214  * Return codes
5215  *      pointer to @phba - successful
5216  *      NULL - error
5217  **/
5218 static struct lpfc_hba *
5219 lpfc_hba_alloc(struct pci_dev *pdev)
5220 {
5221         struct lpfc_hba *phba;
5222
5223         /* Allocate memory for HBA structure */
5224         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5225         if (!phba) {
5226                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5227                 return NULL;
5228         }
5229
5230         /* Set reference to PCI device in HBA structure */
5231         phba->pcidev = pdev;
5232
5233         /* Assign an unused board number */
5234         phba->brd_no = lpfc_get_instance();
5235         if (phba->brd_no < 0) {
5236                 kfree(phba);
5237                 return NULL;
5238         }
5239
5240         spin_lock_init(&phba->ct_ev_lock);
5241         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5242
5243         return phba;
5244 }
5245
5246 /**
5247  * lpfc_hba_free - Free driver hba data structure with a device.
5248  * @phba: pointer to lpfc hba data structure.
5249  *
5250  * This routine is invoked to free the driver hba data structure with an
5251  * HBA device.
5252  **/
5253 static void
5254 lpfc_hba_free(struct lpfc_hba *phba)
5255 {
5256         /* Release the driver assigned board number */
5257         idr_remove(&lpfc_hba_index, phba->brd_no);
5258
5259         kfree(phba);
5260         return;
5261 }
5262
5263 /**
5264  * lpfc_create_shost - Create hba physical port with associated scsi host.
5265  * @phba: pointer to lpfc hba data structure.
5266  *
5267  * This routine is invoked to create HBA physical port and associate a SCSI
5268  * host with it.
5269  *
5270  * Return codes
5271  *      0 - successful
5272  *      other values - error
5273  **/
5274 static int
5275 lpfc_create_shost(struct lpfc_hba *phba)
5276 {
5277         struct lpfc_vport *vport;
5278         struct Scsi_Host  *shost;
5279
5280         /* Initialize HBA FC structure */
5281         phba->fc_edtov = FF_DEF_EDTOV;
5282         phba->fc_ratov = FF_DEF_RATOV;
5283         phba->fc_altov = FF_DEF_ALTOV;
5284         phba->fc_arbtov = FF_DEF_ARBTOV;
5285
5286         atomic_set(&phba->sdev_cnt, 0);
5287         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5288         if (!vport)
5289                 return -ENODEV;
5290
5291         shost = lpfc_shost_from_vport(vport);
5292         phba->pport = vport;
5293         lpfc_debugfs_initialize(vport);
5294         /* Put reference to SCSI host to driver's device private data */
5295         pci_set_drvdata(phba->pcidev, shost);
5296
5297         return 0;
5298 }
5299
5300 /**
5301  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5302  * @phba: pointer to lpfc hba data structure.
5303  *
5304  * This routine is invoked to destroy HBA physical port and the associated
5305  * SCSI host.
5306  **/
5307 static void
5308 lpfc_destroy_shost(struct lpfc_hba *phba)
5309 {
5310         struct lpfc_vport *vport = phba->pport;
5311
5312         /* Destroy physical port that associated with the SCSI host */
5313         destroy_port(vport);
5314
5315         return;
5316 }
5317
5318 /**
5319  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5320  * @phba: pointer to lpfc hba data structure.
5321  * @shost: the shost to be used to detect Block guard settings.
5322  *
5323  * This routine sets up the local Block guard protocol settings for @shost.
5324  * This routine also allocates memory for debugging bg buffers.
5325  **/
5326 static void
5327 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5328 {
5329         int pagecnt = 10;
5330         if (lpfc_prot_mask && lpfc_prot_guard) {
5331                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5332                                 "1478 Registering BlockGuard with the "
5333                                 "SCSI layer\n");
5334                 scsi_host_set_prot(shost, lpfc_prot_mask);
5335                 scsi_host_set_guard(shost, lpfc_prot_guard);
5336         }
5337         if (!_dump_buf_data) {
5338                 while (pagecnt) {
5339                         spin_lock_init(&_dump_buf_lock);
5340                         _dump_buf_data =
5341                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5342                         if (_dump_buf_data) {
5343                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5344                                         "9043 BLKGRD: allocated %d pages for "
5345                                        "_dump_buf_data at 0x%p\n",
5346                                        (1 << pagecnt), _dump_buf_data);
5347                                 _dump_buf_data_order = pagecnt;
5348                                 memset(_dump_buf_data, 0,
5349                                        ((1 << PAGE_SHIFT) << pagecnt));
5350                                 break;
5351                         } else
5352                                 --pagecnt;
5353                 }
5354                 if (!_dump_buf_data_order)
5355                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5356                                 "9044 BLKGRD: ERROR unable to allocate "
5357                                "memory for hexdump\n");
5358         } else
5359                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5360                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5361                        "\n", _dump_buf_data);
5362         if (!_dump_buf_dif) {
5363                 while (pagecnt) {
5364                         _dump_buf_dif =
5365                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5366                         if (_dump_buf_dif) {
5367                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5368                                         "9046 BLKGRD: allocated %d pages for "
5369                                        "_dump_buf_dif at 0x%p\n",
5370                                        (1 << pagecnt), _dump_buf_dif);
5371                                 _dump_buf_dif_order = pagecnt;
5372                                 memset(_dump_buf_dif, 0,
5373                                        ((1 << PAGE_SHIFT) << pagecnt));
5374                                 break;
5375                         } else
5376                                 --pagecnt;
5377                 }
5378                 if (!_dump_buf_dif_order)
5379                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5380                         "9047 BLKGRD: ERROR unable to allocate "
5381                                "memory for hexdump\n");
5382         } else
5383                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5384                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5385                        _dump_buf_dif);
5386 }
5387
5388 /**
5389  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5390  * @phba: pointer to lpfc hba data structure.
5391  *
5392  * This routine is invoked to perform all the necessary post initialization
5393  * setup for the device.
5394  **/
5395 static void
5396 lpfc_post_init_setup(struct lpfc_hba *phba)
5397 {
5398         struct Scsi_Host  *shost;
5399         struct lpfc_adapter_event_header adapter_event;
5400
5401         /* Get the default values for Model Name and Description */
5402         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5403
5404         /*
5405          * hba setup may have changed the hba_queue_depth so we need to
5406          * adjust the value of can_queue.
5407          */
5408         shost = pci_get_drvdata(phba->pcidev);
5409         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5410         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5411                 lpfc_setup_bg(phba, shost);
5412
5413         lpfc_host_attrib_init(shost);
5414
5415         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5416                 spin_lock_irq(shost->host_lock);
5417                 lpfc_poll_start_timer(phba);
5418                 spin_unlock_irq(shost->host_lock);
5419         }
5420
5421         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5422                         "0428 Perform SCSI scan\n");
5423         /* Send board arrival event to upper layer */
5424         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5425         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5426         fc_host_post_vendor_event(shost, fc_get_event_number(),
5427                                   sizeof(adapter_event),
5428                                   (char *) &adapter_event,
5429                                   LPFC_NL_VENDOR_ID);
5430         return;
5431 }
5432
5433 /**
5434  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5435  * @phba: pointer to lpfc hba data structure.
5436  *
5437  * This routine is invoked to set up the PCI device memory space for device
5438  * with SLI-3 interface spec.
5439  *
5440  * Return codes
5441  *      0 - successful
5442  *      other values - error
5443  **/
5444 static int
5445 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5446 {
5447         struct pci_dev *pdev;
5448         unsigned long bar0map_len, bar2map_len;
5449         int i, hbq_count;
5450         void *ptr;
5451         int error = -ENODEV;
5452
5453         /* Obtain PCI device reference */
5454         if (!phba->pcidev)
5455                 return error;
5456         else
5457                 pdev = phba->pcidev;
5458
5459         /* Set the device DMA mask size */
5460         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5461          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5462                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5463                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5464                         return error;
5465                 }
5466         }
5467
5468         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5469          * required by each mapping.
5470          */
5471         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5472         bar0map_len = pci_resource_len(pdev, 0);
5473
5474         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5475         bar2map_len = pci_resource_len(pdev, 2);
5476
5477         /* Map HBA SLIM to a kernel virtual address. */
5478         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5479         if (!phba->slim_memmap_p) {
5480                 dev_printk(KERN_ERR, &pdev->dev,
5481                            "ioremap failed for SLIM memory.\n");
5482                 goto out;
5483         }
5484
5485         /* Map HBA Control Registers to a kernel virtual address. */
5486         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5487         if (!phba->ctrl_regs_memmap_p) {
5488                 dev_printk(KERN_ERR, &pdev->dev,
5489                            "ioremap failed for HBA control registers.\n");
5490                 goto out_iounmap_slim;
5491         }
5492
5493         /* Allocate memory for SLI-2 structures */
5494         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5495                                                SLI2_SLIM_SIZE,
5496                                                &phba->slim2p.phys,
5497                                                GFP_KERNEL);
5498         if (!phba->slim2p.virt)
5499                 goto out_iounmap;
5500
5501         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5502         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5503         phba->mbox_ext = (phba->slim2p.virt +
5504                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5505         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5506         phba->IOCBs = (phba->slim2p.virt +
5507                        offsetof(struct lpfc_sli2_slim, IOCBs));
5508
5509         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5510                                                  lpfc_sli_hbq_size(),
5511                                                  &phba->hbqslimp.phys,
5512                                                  GFP_KERNEL);
5513         if (!phba->hbqslimp.virt)
5514                 goto out_free_slim;
5515
5516         hbq_count = lpfc_sli_hbq_count();
5517         ptr = phba->hbqslimp.virt;
5518         for (i = 0; i < hbq_count; ++i) {
5519                 phba->hbqs[i].hbq_virt = ptr;
5520                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5521                 ptr += (lpfc_hbq_defs[i]->entry_count *
5522                         sizeof(struct lpfc_hbq_entry));
5523         }
5524         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5525         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5526
5527         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5528
5529         INIT_LIST_HEAD(&phba->rb_pend_list);
5530
5531         phba->MBslimaddr = phba->slim_memmap_p;
5532         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5533         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5534         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5535         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5536
5537         return 0;
5538
5539 out_free_slim:
5540         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5541                           phba->slim2p.virt, phba->slim2p.phys);
5542 out_iounmap:
5543         iounmap(phba->ctrl_regs_memmap_p);
5544 out_iounmap_slim:
5545         iounmap(phba->slim_memmap_p);
5546 out:
5547         return error;
5548 }
5549
5550 /**
5551  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5552  * @phba: pointer to lpfc hba data structure.
5553  *
5554  * This routine is invoked to unset the PCI device memory space for device
5555  * with SLI-3 interface spec.
5556  **/
5557 static void
5558 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5559 {
5560         struct pci_dev *pdev;
5561
5562         /* Obtain PCI device reference */
5563         if (!phba->pcidev)
5564                 return;
5565         else
5566                 pdev = phba->pcidev;
5567
5568         /* Free coherent DMA memory allocated */
5569         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5570                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5571         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5572                           phba->slim2p.virt, phba->slim2p.phys);
5573
5574         /* I/O memory unmap */
5575         iounmap(phba->ctrl_regs_memmap_p);
5576         iounmap(phba->slim_memmap_p);
5577
5578         return;
5579 }
5580
5581 /**
5582  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5583  * @phba: pointer to lpfc hba data structure.
5584  *
5585  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5586  * done and check status.
5587  *
5588  * Return 0 if successful, otherwise -ENODEV.
5589  **/
5590 int
5591 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5592 {
5593         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5594         struct lpfc_register reg_data;
5595         int i, port_error = 0;
5596         uint32_t if_type;
5597
5598         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5599         memset(&reg_data, 0, sizeof(reg_data));
5600         if (!phba->sli4_hba.PSMPHRregaddr)
5601                 return -ENODEV;
5602
5603         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5604         for (i = 0; i < 3000; i++) {
5605                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5606                         &portsmphr_reg.word0) ||
5607                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5608                         /* Port has a fatal POST error, break out */
5609                         port_error = -ENODEV;
5610                         break;
5611                 }
5612                 if (LPFC_POST_STAGE_PORT_READY ==
5613                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5614                         break;
5615                 msleep(10);
5616         }
5617
5618         /*
5619          * If there was a port error during POST, then don't proceed with
5620          * other register reads as the data may not be valid.  Just exit.
5621          */
5622         if (port_error) {
5623                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5624                         "1408 Port Failed POST - portsmphr=0x%x, "
5625                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5626                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5627                         portsmphr_reg.word0,
5628                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5629                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5630                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5631                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5632                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5633                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5634                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5635                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5636         } else {
5637                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5638                                 "2534 Device Info: SLIFamily=0x%x, "
5639                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5640                                 "SLIHint_2=0x%x, FT=0x%x\n",
5641                                 bf_get(lpfc_sli_intf_sli_family,
5642                                        &phba->sli4_hba.sli_intf),
5643                                 bf_get(lpfc_sli_intf_slirev,
5644                                        &phba->sli4_hba.sli_intf),
5645                                 bf_get(lpfc_sli_intf_if_type,
5646                                        &phba->sli4_hba.sli_intf),
5647                                 bf_get(lpfc_sli_intf_sli_hint1,
5648                                        &phba->sli4_hba.sli_intf),
5649                                 bf_get(lpfc_sli_intf_sli_hint2,
5650                                        &phba->sli4_hba.sli_intf),
5651                                 bf_get(lpfc_sli_intf_func_type,
5652                                        &phba->sli4_hba.sli_intf));
5653                 /*
5654                  * Check for other Port errors during the initialization
5655                  * process.  Fail the load if the port did not come up
5656                  * correctly.
5657                  */
5658                 if_type = bf_get(lpfc_sli_intf_if_type,
5659                                  &phba->sli4_hba.sli_intf);
5660                 switch (if_type) {
5661                 case LPFC_SLI_INTF_IF_TYPE_0:
5662                         phba->sli4_hba.ue_mask_lo =
5663                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5664                         phba->sli4_hba.ue_mask_hi =
5665                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5666                         uerrlo_reg.word0 =
5667                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5668                         uerrhi_reg.word0 =
5669                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5670                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5671                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5672                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5673                                                 "1422 Unrecoverable Error "
5674                                                 "Detected during POST "
5675                                                 "uerr_lo_reg=0x%x, "
5676                                                 "uerr_hi_reg=0x%x, "
5677                                                 "ue_mask_lo_reg=0x%x, "
5678                                                 "ue_mask_hi_reg=0x%x\n",
5679                                                 uerrlo_reg.word0,
5680                                                 uerrhi_reg.word0,
5681                                                 phba->sli4_hba.ue_mask_lo,
5682                                                 phba->sli4_hba.ue_mask_hi);
5683                                 port_error = -ENODEV;
5684                         }
5685                         break;
5686                 case LPFC_SLI_INTF_IF_TYPE_2:
5687                         /* Final checks.  The port status should be clean. */
5688                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5689                                 &reg_data.word0) ||
5690                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5691                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5692                                 phba->work_status[0] =
5693                                         readl(phba->sli4_hba.u.if_type2.
5694                                               ERR1regaddr);
5695                                 phba->work_status[1] =
5696                                         readl(phba->sli4_hba.u.if_type2.
5697                                               ERR2regaddr);
5698                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5699                                         "2888 Port Error Detected "
5700                                         "during POST: "
5701                                         "port status reg 0x%x, "
5702                                         "port_smphr reg 0x%x, "
5703                                         "error 1=0x%x, error 2=0x%x\n",
5704                                         reg_data.word0,
5705                                         portsmphr_reg.word0,
5706                                         phba->work_status[0],
5707                                         phba->work_status[1]);
5708                                 port_error = -ENODEV;
5709                         }
5710                         break;
5711                 case LPFC_SLI_INTF_IF_TYPE_1:
5712                 default:
5713                         break;
5714                 }
5715         }
5716         return port_error;
5717 }
5718
5719 /**
5720  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5721  * @phba: pointer to lpfc hba data structure.
5722  * @if_type:  The SLI4 interface type getting configured.
5723  *
5724  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5725  * memory map.
5726  **/
5727 static void
5728 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5729 {
5730         switch (if_type) {
5731         case LPFC_SLI_INTF_IF_TYPE_0:
5732                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5733                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5734                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5735                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5736                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5737                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5738                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5739                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5740                 phba->sli4_hba.SLIINTFregaddr =
5741                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5742                 break;
5743         case LPFC_SLI_INTF_IF_TYPE_2:
5744                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5745                         phba->sli4_hba.conf_regs_memmap_p +
5746                                                 LPFC_CTL_PORT_ER1_OFFSET;
5747                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5748                         phba->sli4_hba.conf_regs_memmap_p +
5749                                                 LPFC_CTL_PORT_ER2_OFFSET;
5750                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5751                         phba->sli4_hba.conf_regs_memmap_p +
5752                                                 LPFC_CTL_PORT_CTL_OFFSET;
5753                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5754                         phba->sli4_hba.conf_regs_memmap_p +
5755                                                 LPFC_CTL_PORT_STA_OFFSET;
5756                 phba->sli4_hba.SLIINTFregaddr =
5757                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5758                 phba->sli4_hba.PSMPHRregaddr =
5759                         phba->sli4_hba.conf_regs_memmap_p +
5760                                                 LPFC_CTL_PORT_SEM_OFFSET;
5761                 phba->sli4_hba.RQDBregaddr =
5762                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5763                 phba->sli4_hba.WQDBregaddr =
5764                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5765                 phba->sli4_hba.EQCQDBregaddr =
5766                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5767                 phba->sli4_hba.MQDBregaddr =
5768                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5769                 phba->sli4_hba.BMBXregaddr =
5770                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5771                 break;
5772         case LPFC_SLI_INTF_IF_TYPE_1:
5773         default:
5774                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5775                            "FATAL - unsupported SLI4 interface type - %d\n",
5776                            if_type);
5777                 break;
5778         }
5779 }
5780
5781 /**
5782  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5783  * @phba: pointer to lpfc hba data structure.
5784  *
5785  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5786  * memory map.
5787  **/
5788 static void
5789 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5790 {
5791         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5792                 LPFC_SLIPORT_IF0_SMPHR;
5793         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5794                 LPFC_HST_ISR0;
5795         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5796                 LPFC_HST_IMR0;
5797         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5798                 LPFC_HST_ISCR0;
5799 }
5800
5801 /**
5802  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5803  * @phba: pointer to lpfc hba data structure.
5804  * @vf: virtual function number
5805  *
5806  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5807  * based on the given viftual function number, @vf.
5808  *
5809  * Return 0 if successful, otherwise -ENODEV.
5810  **/
5811 static int
5812 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5813 {
5814         if (vf > LPFC_VIR_FUNC_MAX)
5815                 return -ENODEV;
5816
5817         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5818                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5819         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5820                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5821         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5822                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5823         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5824                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5825         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5826                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5827         return 0;
5828 }
5829
5830 /**
5831  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5832  * @phba: pointer to lpfc hba data structure.
5833  *
5834  * This routine is invoked to create the bootstrap mailbox
5835  * region consistent with the SLI-4 interface spec.  This
5836  * routine allocates all memory necessary to communicate
5837  * mailbox commands to the port and sets up all alignment
5838  * needs.  No locks are expected to be held when calling
5839  * this routine.
5840  *
5841  * Return codes
5842  *      0 - successful
5843  *      -ENOMEM - could not allocated memory.
5844  **/
5845 static int
5846 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5847 {
5848         uint32_t bmbx_size;
5849         struct lpfc_dmabuf *dmabuf;
5850         struct dma_address *dma_address;
5851         uint32_t pa_addr;
5852         uint64_t phys_addr;
5853
5854         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5855         if (!dmabuf)
5856                 return -ENOMEM;
5857
5858         /*
5859          * The bootstrap mailbox region is comprised of 2 parts
5860          * plus an alignment restriction of 16 bytes.
5861          */
5862         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5863         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5864                                           bmbx_size,
5865                                           &dmabuf->phys,
5866                                           GFP_KERNEL);
5867         if (!dmabuf->virt) {
5868                 kfree(dmabuf);
5869                 return -ENOMEM;
5870         }
5871         memset(dmabuf->virt, 0, bmbx_size);
5872
5873         /*
5874          * Initialize the bootstrap mailbox pointers now so that the register
5875          * operations are simple later.  The mailbox dma address is required
5876          * to be 16-byte aligned.  Also align the virtual memory as each
5877          * maibox is copied into the bmbx mailbox region before issuing the
5878          * command to the port.
5879          */
5880         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5881         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5882
5883         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5884                                               LPFC_ALIGN_16_BYTE);
5885         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5886                                               LPFC_ALIGN_16_BYTE);
5887
5888         /*
5889          * Set the high and low physical addresses now.  The SLI4 alignment
5890          * requirement is 16 bytes and the mailbox is posted to the port
5891          * as two 30-bit addresses.  The other data is a bit marking whether
5892          * the 30-bit address is the high or low address.
5893          * Upcast bmbx aphys to 64bits so shift instruction compiles
5894          * clean on 32 bit machines.
5895          */
5896         dma_address = &phba->sli4_hba.bmbx.dma_address;
5897         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5898         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5899         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5900                                            LPFC_BMBX_BIT1_ADDR_HI);
5901
5902         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5903         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5904                                            LPFC_BMBX_BIT1_ADDR_LO);
5905         return 0;
5906 }
5907
5908 /**
5909  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5910  * @phba: pointer to lpfc hba data structure.
5911  *
5912  * This routine is invoked to teardown the bootstrap mailbox
5913  * region and release all host resources. This routine requires
5914  * the caller to ensure all mailbox commands recovered, no
5915  * additional mailbox comands are sent, and interrupts are disabled
5916  * before calling this routine.
5917  *
5918  **/
5919 static void
5920 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5921 {
5922         dma_free_coherent(&phba->pcidev->dev,
5923                           phba->sli4_hba.bmbx.bmbx_size,
5924                           phba->sli4_hba.bmbx.dmabuf->virt,
5925                           phba->sli4_hba.bmbx.dmabuf->phys);
5926
5927         kfree(phba->sli4_hba.bmbx.dmabuf);
5928         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5929 }
5930
5931 /**
5932  * lpfc_sli4_read_config - Get the config parameters.
5933  * @phba: pointer to lpfc hba data structure.
5934  *
5935  * This routine is invoked to read the configuration parameters from the HBA.
5936  * The configuration parameters are used to set the base and maximum values
5937  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5938  * allocation for the port.
5939  *
5940  * Return codes
5941  *      0 - successful
5942  *      -ENOMEM - No available memory
5943  *      -EIO - The mailbox failed to complete successfully.
5944  **/
5945 static int
5946 lpfc_sli4_read_config(struct lpfc_hba *phba)
5947 {
5948         LPFC_MBOXQ_t *pmb;
5949         struct lpfc_mbx_read_config *rd_config;
5950         union  lpfc_sli4_cfg_shdr *shdr;
5951         uint32_t shdr_status, shdr_add_status;
5952         struct lpfc_mbx_get_func_cfg *get_func_cfg;
5953         struct lpfc_rsrc_desc_fcfcoe *desc;
5954         uint32_t desc_count;
5955         int length, i, rc = 0;
5956
5957         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5958         if (!pmb) {
5959                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5960                                 "2011 Unable to allocate memory for issuing "
5961                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5962                 return -ENOMEM;
5963         }
5964
5965         lpfc_read_config(phba, pmb);
5966
5967         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5968         if (rc != MBX_SUCCESS) {
5969                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5970                         "2012 Mailbox failed , mbxCmd x%x "
5971                         "READ_CONFIG, mbxStatus x%x\n",
5972                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5973                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5974                 rc = -EIO;
5975         } else {
5976                 rd_config = &pmb->u.mqe.un.rd_config;
5977                 phba->sli4_hba.extents_in_use =
5978                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
5979                 phba->sli4_hba.max_cfg_param.max_xri =
5980                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5981                 phba->sli4_hba.max_cfg_param.xri_base =
5982                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5983                 phba->sli4_hba.max_cfg_param.max_vpi =
5984                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5985                 phba->sli4_hba.max_cfg_param.vpi_base =
5986                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5987                 phba->sli4_hba.max_cfg_param.max_rpi =
5988                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5989                 phba->sli4_hba.max_cfg_param.rpi_base =
5990                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5991                 phba->sli4_hba.max_cfg_param.max_vfi =
5992                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5993                 phba->sli4_hba.max_cfg_param.vfi_base =
5994                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5995                 phba->sli4_hba.max_cfg_param.max_fcfi =
5996                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5997                 phba->sli4_hba.max_cfg_param.max_eq =
5998                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5999                 phba->sli4_hba.max_cfg_param.max_rq =
6000                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6001                 phba->sli4_hba.max_cfg_param.max_wq =
6002                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6003                 phba->sli4_hba.max_cfg_param.max_cq =
6004                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6005                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6006                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6007                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6008                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6009                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
6010                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6011                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6012                 phba->max_vports = phba->max_vpi;
6013                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6014                                 "2003 cfg params Extents? %d "
6015                                 "XRI(B:%d M:%d), "
6016                                 "VPI(B:%d M:%d) "
6017                                 "VFI(B:%d M:%d) "
6018                                 "RPI(B:%d M:%d) "
6019                                 "FCFI(Count:%d)\n",
6020                                 phba->sli4_hba.extents_in_use,
6021                                 phba->sli4_hba.max_cfg_param.xri_base,
6022                                 phba->sli4_hba.max_cfg_param.max_xri,
6023                                 phba->sli4_hba.max_cfg_param.vpi_base,
6024                                 phba->sli4_hba.max_cfg_param.max_vpi,
6025                                 phba->sli4_hba.max_cfg_param.vfi_base,
6026                                 phba->sli4_hba.max_cfg_param.max_vfi,
6027                                 phba->sli4_hba.max_cfg_param.rpi_base,
6028                                 phba->sli4_hba.max_cfg_param.max_rpi,
6029                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6030         }
6031
6032         if (rc)
6033                 goto read_cfg_out;
6034
6035         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6036         if (phba->cfg_hba_queue_depth >
6037                 (phba->sli4_hba.max_cfg_param.max_xri -
6038                         lpfc_sli4_get_els_iocb_cnt(phba)))
6039                 phba->cfg_hba_queue_depth =
6040                         phba->sli4_hba.max_cfg_param.max_xri -
6041                                 lpfc_sli4_get_els_iocb_cnt(phba);
6042
6043         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6044             LPFC_SLI_INTF_IF_TYPE_2)
6045                 goto read_cfg_out;
6046
6047         /* get the pf# and vf# for SLI4 if_type 2 port */
6048         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6049                   sizeof(struct lpfc_sli4_cfg_mhdr));
6050         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6051                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6052                          length, LPFC_SLI4_MBX_EMBED);
6053
6054         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6055         shdr = (union lpfc_sli4_cfg_shdr *)
6056                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6057         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6058         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6059         if (rc || shdr_status || shdr_add_status) {
6060                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6061                                 "3026 Mailbox failed , mbxCmd x%x "
6062                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6063                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6064                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6065                 rc = -EIO;
6066                 goto read_cfg_out;
6067         }
6068
6069         /* search for fc_fcoe resrouce descriptor */
6070         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6071         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6072
6073         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6074                 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6075                         &get_func_cfg->func_cfg.desc[i];
6076                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6077                     bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6078                         phba->sli4_hba.iov.pf_number =
6079                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6080                         phba->sli4_hba.iov.vf_number =
6081                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6082                         break;
6083                 }
6084         }
6085
6086         if (i < LPFC_RSRC_DESC_MAX_NUM)
6087                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6088                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6089                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6090                                 phba->sli4_hba.iov.vf_number);
6091         else {
6092                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6093                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6094                                 "Resrouce Descriptor:x%x\n",
6095                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6096                 rc = -EIO;
6097         }
6098
6099 read_cfg_out:
6100         mempool_free(pmb, phba->mbox_mem_pool);
6101         return rc;
6102 }
6103
6104 /**
6105  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6106  * @phba: pointer to lpfc hba data structure.
6107  *
6108  * This routine is invoked to setup the port-side endian order when
6109  * the port if_type is 0.  This routine has no function for other
6110  * if_types.
6111  *
6112  * Return codes
6113  *      0 - successful
6114  *      -ENOMEM - No available memory
6115  *      -EIO - The mailbox failed to complete successfully.
6116  **/
6117 static int
6118 lpfc_setup_endian_order(struct lpfc_hba *phba)
6119 {
6120         LPFC_MBOXQ_t *mboxq;
6121         uint32_t if_type, rc = 0;
6122         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6123                                       HOST_ENDIAN_HIGH_WORD1};
6124
6125         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6126         switch (if_type) {
6127         case LPFC_SLI_INTF_IF_TYPE_0:
6128                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6129                                                        GFP_KERNEL);
6130                 if (!mboxq) {
6131                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6132                                         "0492 Unable to allocate memory for "
6133                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6134                                         "command\n");
6135                         return -ENOMEM;
6136                 }
6137
6138                 /*
6139                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6140                  * two words to contain special data values and no other data.
6141                  */
6142                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6143                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6144                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6145                 if (rc != MBX_SUCCESS) {
6146                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6147                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6148                                         "failed with status x%x\n",
6149                                         rc);
6150                         rc = -EIO;
6151                 }
6152                 mempool_free(mboxq, phba->mbox_mem_pool);
6153                 break;
6154         case LPFC_SLI_INTF_IF_TYPE_2:
6155         case LPFC_SLI_INTF_IF_TYPE_1:
6156         default:
6157                 break;
6158         }
6159         return rc;
6160 }
6161
6162 /**
6163  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6164  * @phba: pointer to lpfc hba data structure.
6165  *
6166  * This routine is invoked to check the user settable queue counts for EQs and
6167  * CQs. after this routine is called the counts will be set to valid values that
6168  * adhere to the constraints of the system's interrupt vectors and the port's
6169  * queue resources.
6170  *
6171  * Return codes
6172  *      0 - successful
6173  *      -ENOMEM - No available memory
6174  **/
6175 static int
6176 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6177 {
6178         int cfg_fcp_wq_count;
6179         int cfg_fcp_eq_count;
6180
6181         /*
6182          * Sanity check for confiugred queue parameters against the run-time
6183          * device parameters
6184          */
6185
6186         /* Sanity check on FCP fast-path WQ parameters */
6187         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6188         if (cfg_fcp_wq_count >
6189             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6190                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6191                                    LPFC_SP_WQN_DEF;
6192                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6193                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6194                                         "2581 Not enough WQs (%d) from "
6195                                         "the pci function for supporting "
6196                                         "FCP WQs (%d)\n",
6197                                         phba->sli4_hba.max_cfg_param.max_wq,
6198                                         phba->cfg_fcp_wq_count);
6199                         goto out_error;
6200                 }
6201                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6202                                 "2582 Not enough WQs (%d) from the pci "
6203                                 "function for supporting the requested "
6204                                 "FCP WQs (%d), the actual FCP WQs can "
6205                                 "be supported: %d\n",
6206                                 phba->sli4_hba.max_cfg_param.max_wq,
6207                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6208         }
6209         /* The actual number of FCP work queues adopted */
6210         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6211
6212         /* Sanity check on FCP fast-path EQ parameters */
6213         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6214         if (cfg_fcp_eq_count >
6215             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6216                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6217                                    LPFC_SP_EQN_DEF;
6218                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6219                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6220                                         "2574 Not enough EQs (%d) from the "
6221                                         "pci function for supporting FCP "
6222                                         "EQs (%d)\n",
6223                                         phba->sli4_hba.max_cfg_param.max_eq,
6224                                         phba->cfg_fcp_eq_count);
6225                         goto out_error;
6226                 }
6227                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6228                                 "2575 Not enough EQs (%d) from the pci "
6229                                 "function for supporting the requested "
6230                                 "FCP EQs (%d), the actual FCP EQs can "
6231                                 "be supported: %d\n",
6232                                 phba->sli4_hba.max_cfg_param.max_eq,
6233                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6234         }
6235         /* It does not make sense to have more EQs than WQs */
6236         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6237                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6238                                 "2593 The FCP EQ count(%d) cannot be greater "
6239                                 "than the FCP WQ count(%d), limiting the "
6240                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6241                                 phba->cfg_fcp_wq_count,
6242                                 phba->cfg_fcp_wq_count);
6243                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6244         }
6245         /* The actual number of FCP event queues adopted */
6246         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6247         /* The overall number of event queues used */
6248         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6249
6250         /* Get EQ depth from module parameter, fake the default for now */
6251         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6252         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6253
6254         /* Get CQ depth from module parameter, fake the default for now */
6255         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6256         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6257
6258         return 0;
6259 out_error:
6260         return -ENOMEM;
6261 }
6262
6263 /**
6264  * lpfc_sli4_queue_create - Create all the SLI4 queues
6265  * @phba: pointer to lpfc hba data structure.
6266  *
6267  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6268  * operation. For each SLI4 queue type, the parameters such as queue entry
6269  * count (queue depth) shall be taken from the module parameter. For now,
6270  * we just use some constant number as place holder.
6271  *
6272  * Return codes
6273  *      0 - sucessful
6274  *      -ENOMEM - No availble memory
6275  *      -EIO - The mailbox failed to complete successfully.
6276  **/
6277 int
6278 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6279 {
6280         struct lpfc_queue *qdesc;
6281         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6282
6283         /*
6284          * Create Event Queues (EQs)
6285          */
6286
6287         /* Create slow path event queue */
6288         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6289                                       phba->sli4_hba.eq_ecount);
6290         if (!qdesc) {
6291                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6292                                 "0496 Failed allocate slow-path EQ\n");
6293                 goto out_error;
6294         }
6295         phba->sli4_hba.sp_eq = qdesc;
6296
6297         /*
6298          * Create fast-path FCP Event Queue(s).  The cfg_fcp_eq_count can be
6299          * zero whenever there is exactly one interrupt vector.  This is not
6300          * an error.
6301          */
6302         if (phba->cfg_fcp_eq_count) {
6303                 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6304                                        phba->cfg_fcp_eq_count), GFP_KERNEL);
6305                 if (!phba->sli4_hba.fp_eq) {
6306                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6307                                         "2576 Failed allocate memory for "
6308                                         "fast-path EQ record array\n");
6309                         goto out_free_sp_eq;
6310                 }
6311         }
6312         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6313                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6314                                               phba->sli4_hba.eq_ecount);
6315                 if (!qdesc) {
6316                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6317                                         "0497 Failed allocate fast-path EQ\n");
6318                         goto out_free_fp_eq;
6319                 }
6320                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6321         }
6322
6323         /*
6324          * Create Complete Queues (CQs)
6325          */
6326
6327         /* Create slow-path Mailbox Command Complete Queue */
6328         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6329                                       phba->sli4_hba.cq_ecount);
6330         if (!qdesc) {
6331                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6332                                 "0500 Failed allocate slow-path mailbox CQ\n");
6333                 goto out_free_fp_eq;
6334         }
6335         phba->sli4_hba.mbx_cq = qdesc;
6336
6337         /* Create slow-path ELS Complete Queue */
6338         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6339                                       phba->sli4_hba.cq_ecount);
6340         if (!qdesc) {
6341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6342                                 "0501 Failed allocate slow-path ELS CQ\n");
6343                 goto out_free_mbx_cq;
6344         }
6345         phba->sli4_hba.els_cq = qdesc;
6346
6347
6348         /*
6349          * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6350          * If there are no FCP EQs then create exactly one FCP CQ.
6351          */
6352         if (phba->cfg_fcp_eq_count)
6353                 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6354                                                  phba->cfg_fcp_eq_count),
6355                                                 GFP_KERNEL);
6356         else
6357                 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
6358                                                 GFP_KERNEL);
6359         if (!phba->sli4_hba.fcp_cq) {
6360                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6361                                 "2577 Failed allocate memory for fast-path "
6362                                 "CQ record array\n");
6363                 goto out_free_els_cq;
6364         }
6365         fcp_cqidx = 0;
6366         do {
6367                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6368                                               phba->sli4_hba.cq_ecount);
6369                 if (!qdesc) {
6370                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6371                                         "0499 Failed allocate fast-path FCP "
6372                                         "CQ (%d)\n", fcp_cqidx);
6373                         goto out_free_fcp_cq;
6374                 }
6375                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6376         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6377
6378         /* Create Mailbox Command Queue */
6379         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6380         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6381
6382         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6383                                       phba->sli4_hba.mq_ecount);
6384         if (!qdesc) {
6385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6386                                 "0505 Failed allocate slow-path MQ\n");
6387                 goto out_free_fcp_cq;
6388         }
6389         phba->sli4_hba.mbx_wq = qdesc;
6390
6391         /*
6392          * Create all the Work Queues (WQs)
6393          */
6394         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6395         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6396
6397         /* Create slow-path ELS Work Queue */
6398         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6399                                       phba->sli4_hba.wq_ecount);
6400         if (!qdesc) {
6401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6402                                 "0504 Failed allocate slow-path ELS WQ\n");
6403                 goto out_free_mbx_wq;
6404         }
6405         phba->sli4_hba.els_wq = qdesc;
6406
6407         /* Create fast-path FCP Work Queue(s) */
6408         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6409                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6410         if (!phba->sli4_hba.fcp_wq) {
6411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6412                                 "2578 Failed allocate memory for fast-path "
6413                                 "WQ record array\n");
6414                 goto out_free_els_wq;
6415         }
6416         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6417                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6418                                               phba->sli4_hba.wq_ecount);
6419                 if (!qdesc) {
6420                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6421                                         "0503 Failed allocate fast-path FCP "
6422                                         "WQ (%d)\n", fcp_wqidx);
6423                         goto out_free_fcp_wq;
6424                 }
6425                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6426         }
6427
6428         /*
6429          * Create Receive Queue (RQ)
6430          */
6431         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6432         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6433
6434         /* Create Receive Queue for header */
6435         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6436                                       phba->sli4_hba.rq_ecount);
6437         if (!qdesc) {
6438                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6439                                 "0506 Failed allocate receive HRQ\n");
6440                 goto out_free_fcp_wq;
6441         }
6442         phba->sli4_hba.hdr_rq = qdesc;
6443
6444         /* Create Receive Queue for data */
6445         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6446                                       phba->sli4_hba.rq_ecount);
6447         if (!qdesc) {
6448                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6449                                 "0507 Failed allocate receive DRQ\n");
6450                 goto out_free_hdr_rq;
6451         }
6452         phba->sli4_hba.dat_rq = qdesc;
6453
6454         return 0;
6455
6456 out_free_hdr_rq:
6457         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6458         phba->sli4_hba.hdr_rq = NULL;
6459 out_free_fcp_wq:
6460         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6461                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6462                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6463         }
6464         kfree(phba->sli4_hba.fcp_wq);
6465 out_free_els_wq:
6466         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6467         phba->sli4_hba.els_wq = NULL;
6468 out_free_mbx_wq:
6469         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6470         phba->sli4_hba.mbx_wq = NULL;
6471 out_free_fcp_cq:
6472         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6473                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6474                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6475         }
6476         kfree(phba->sli4_hba.fcp_cq);
6477 out_free_els_cq:
6478         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6479         phba->sli4_hba.els_cq = NULL;
6480 out_free_mbx_cq:
6481         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6482         phba->sli4_hba.mbx_cq = NULL;
6483 out_free_fp_eq:
6484         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6485                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6486                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6487         }
6488         kfree(phba->sli4_hba.fp_eq);
6489 out_free_sp_eq:
6490         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6491         phba->sli4_hba.sp_eq = NULL;
6492 out_error:
6493         return -ENOMEM;
6494 }
6495
6496 /**
6497  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6498  * @phba: pointer to lpfc hba data structure.
6499  *
6500  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6501  * operation.
6502  *
6503  * Return codes
6504  *      0 - successful
6505  *      -ENOMEM - No available memory
6506  *      -EIO - The mailbox failed to complete successfully.
6507  **/
6508 void
6509 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6510 {
6511         int fcp_qidx;
6512
6513         /* Release mailbox command work queue */
6514         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6515         phba->sli4_hba.mbx_wq = NULL;
6516
6517         /* Release ELS work queue */
6518         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6519         phba->sli4_hba.els_wq = NULL;
6520
6521         /* Release FCP work queue */
6522         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6523                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6524         kfree(phba->sli4_hba.fcp_wq);
6525         phba->sli4_hba.fcp_wq = NULL;
6526
6527         /* Release unsolicited receive queue */
6528         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6529         phba->sli4_hba.hdr_rq = NULL;
6530         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6531         phba->sli4_hba.dat_rq = NULL;
6532
6533         /* Release ELS complete queue */
6534         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6535         phba->sli4_hba.els_cq = NULL;
6536
6537         /* Release mailbox command complete queue */
6538         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6539         phba->sli4_hba.mbx_cq = NULL;
6540
6541         /* Release FCP response complete queue */
6542         fcp_qidx = 0;
6543         do
6544                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6545         while (++fcp_qidx < phba->cfg_fcp_eq_count);
6546         kfree(phba->sli4_hba.fcp_cq);
6547         phba->sli4_hba.fcp_cq = NULL;
6548
6549         /* Release fast-path event queue */
6550         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6551                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6552         kfree(phba->sli4_hba.fp_eq);
6553         phba->sli4_hba.fp_eq = NULL;
6554
6555         /* Release slow-path event queue */
6556         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6557         phba->sli4_hba.sp_eq = NULL;
6558
6559         return;
6560 }
6561
6562 /**
6563  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6564  * @phba: pointer to lpfc hba data structure.
6565  *
6566  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6567  * operation.
6568  *
6569  * Return codes
6570  *      0 - successful
6571  *      -ENOMEM - No available memory
6572  *      -EIO - The mailbox failed to complete successfully.
6573  **/
6574 int
6575 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6576 {
6577         int rc = -ENOMEM;
6578         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6579         int fcp_cq_index = 0;
6580
6581         /*
6582          * Set up Event Queues (EQs)
6583          */
6584
6585         /* Set up slow-path event queue */
6586         if (!phba->sli4_hba.sp_eq) {
6587                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6588                                 "0520 Slow-path EQ not allocated\n");
6589                 goto out_error;
6590         }
6591         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6592                             LPFC_SP_DEF_IMAX);
6593         if (rc) {
6594                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6595                                 "0521 Failed setup of slow-path EQ: "
6596                                 "rc = 0x%x\n", rc);
6597                 goto out_error;
6598         }
6599         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6600                         "2583 Slow-path EQ setup: queue-id=%d\n",
6601                         phba->sli4_hba.sp_eq->queue_id);
6602
6603         /* Set up fast-path event queue */
6604         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6605                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6606                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6607                                         "0522 Fast-path EQ (%d) not "
6608                                         "allocated\n", fcp_eqidx);
6609                         goto out_destroy_fp_eq;
6610                 }
6611                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6612                                     phba->cfg_fcp_imax);
6613                 if (rc) {
6614                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6615                                         "0523 Failed setup of fast-path EQ "
6616                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6617                         goto out_destroy_fp_eq;
6618                 }
6619                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6620                                 "2584 Fast-path EQ setup: "
6621                                 "queue[%d]-id=%d\n", fcp_eqidx,
6622                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6623         }
6624
6625         /*
6626          * Set up Complete Queues (CQs)
6627          */
6628
6629         /* Set up slow-path MBOX Complete Queue as the first CQ */
6630         if (!phba->sli4_hba.mbx_cq) {
6631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6632                                 "0528 Mailbox CQ not allocated\n");
6633                 goto out_destroy_fp_eq;
6634         }
6635         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6636                             LPFC_MCQ, LPFC_MBOX);
6637         if (rc) {
6638                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6639                                 "0529 Failed setup of slow-path mailbox CQ: "
6640                                 "rc = 0x%x\n", rc);
6641                 goto out_destroy_fp_eq;
6642         }
6643         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6644                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6645                         phba->sli4_hba.mbx_cq->queue_id,
6646                         phba->sli4_hba.sp_eq->queue_id);
6647
6648         /* Set up slow-path ELS Complete Queue */
6649         if (!phba->sli4_hba.els_cq) {
6650                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6651                                 "0530 ELS CQ not allocated\n");
6652                 goto out_destroy_mbx_cq;
6653         }
6654         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6655                             LPFC_WCQ, LPFC_ELS);
6656         if (rc) {
6657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6658                                 "0531 Failed setup of slow-path ELS CQ: "
6659                                 "rc = 0x%x\n", rc);
6660                 goto out_destroy_mbx_cq;
6661         }
6662         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6663                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6664                         phba->sli4_hba.els_cq->queue_id,
6665                         phba->sli4_hba.sp_eq->queue_id);
6666
6667         /* Set up fast-path FCP Response Complete Queue */
6668         fcp_cqidx = 0;
6669         do {
6670                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6672                                         "0526 Fast-path FCP CQ (%d) not "
6673                                         "allocated\n", fcp_cqidx);
6674                         goto out_destroy_fcp_cq;
6675                 }
6676                 if (phba->cfg_fcp_eq_count)
6677                         rc = lpfc_cq_create(phba,
6678                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6679                                             phba->sli4_hba.fp_eq[fcp_cqidx],
6680                                             LPFC_WCQ, LPFC_FCP);
6681                 else
6682                         rc = lpfc_cq_create(phba,
6683                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6684                                             phba->sli4_hba.sp_eq,
6685                                             LPFC_WCQ, LPFC_FCP);
6686                 if (rc) {
6687                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6688                                         "0527 Failed setup of fast-path FCP "
6689                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6690                         goto out_destroy_fcp_cq;
6691                 }
6692                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6693                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6694                                 "parent %seq[%d]-id=%d\n",
6695                                 fcp_cqidx,
6696                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6697                                 (phba->cfg_fcp_eq_count) ? "" : "sp_",
6698                                 fcp_cqidx,
6699                                 (phba->cfg_fcp_eq_count) ?
6700                                    phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6701                                    phba->sli4_hba.sp_eq->queue_id);
6702         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6703
6704         /*
6705          * Set up all the Work Queues (WQs)
6706          */
6707
6708         /* Set up Mailbox Command Queue */
6709         if (!phba->sli4_hba.mbx_wq) {
6710                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6711                                 "0538 Slow-path MQ not allocated\n");
6712                 goto out_destroy_fcp_cq;
6713         }
6714         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6715                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6716         if (rc) {
6717                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6718                                 "0539 Failed setup of slow-path MQ: "
6719                                 "rc = 0x%x\n", rc);
6720                 goto out_destroy_fcp_cq;
6721         }
6722         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6723                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6724                         phba->sli4_hba.mbx_wq->queue_id,
6725                         phba->sli4_hba.mbx_cq->queue_id);
6726
6727         /* Set up slow-path ELS Work Queue */
6728         if (!phba->sli4_hba.els_wq) {
6729                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6730                                 "0536 Slow-path ELS WQ not allocated\n");
6731                 goto out_destroy_mbx_wq;
6732         }
6733         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6734                             phba->sli4_hba.els_cq, LPFC_ELS);
6735         if (rc) {
6736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6737                                 "0537 Failed setup of slow-path ELS WQ: "
6738                                 "rc = 0x%x\n", rc);
6739                 goto out_destroy_mbx_wq;
6740         }
6741         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6742                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6743                         phba->sli4_hba.els_wq->queue_id,
6744                         phba->sli4_hba.els_cq->queue_id);
6745
6746         /* Set up fast-path FCP Work Queue */
6747         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6748                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6749                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6750                                         "0534 Fast-path FCP WQ (%d) not "
6751                                         "allocated\n", fcp_wqidx);
6752                         goto out_destroy_fcp_wq;
6753                 }
6754                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6755                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6756                                     LPFC_FCP);
6757                 if (rc) {
6758                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6759                                         "0535 Failed setup of fast-path FCP "
6760                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6761                         goto out_destroy_fcp_wq;
6762                 }
6763                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6764                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6765                                 "parent cq[%d]-id=%d\n",
6766                                 fcp_wqidx,
6767                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6768                                 fcp_cq_index,
6769                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6770                 /* Round robin FCP Work Queue's Completion Queue assignment */
6771                 if (phba->cfg_fcp_eq_count)
6772                         fcp_cq_index = ((fcp_cq_index + 1) %
6773                                         phba->cfg_fcp_eq_count);
6774         }
6775
6776         /*
6777          * Create Receive Queue (RQ)
6778          */
6779         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6781                                 "0540 Receive Queue not allocated\n");
6782                 goto out_destroy_fcp_wq;
6783         }
6784
6785         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
6786         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
6787
6788         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6789                             phba->sli4_hba.els_cq, LPFC_USOL);
6790         if (rc) {
6791                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6792                                 "0541 Failed setup of Receive Queue: "
6793                                 "rc = 0x%x\n", rc);
6794                 goto out_destroy_fcp_wq;
6795         }
6796
6797         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6798                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6799                         "parent cq-id=%d\n",
6800                         phba->sli4_hba.hdr_rq->queue_id,
6801                         phba->sli4_hba.dat_rq->queue_id,
6802                         phba->sli4_hba.els_cq->queue_id);
6803         return 0;
6804
6805 out_destroy_fcp_wq:
6806         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6807                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6808         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6809 out_destroy_mbx_wq:
6810         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6811 out_destroy_fcp_cq:
6812         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6813                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6814         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6815 out_destroy_mbx_cq:
6816         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6817 out_destroy_fp_eq:
6818         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6819                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6820         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6821 out_error:
6822         return rc;
6823 }
6824
6825 /**
6826  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6827  * @phba: pointer to lpfc hba data structure.
6828  *
6829  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6830  * operation.
6831  *
6832  * Return codes
6833  *      0 - successful
6834  *      -ENOMEM - No available memory
6835  *      -EIO - The mailbox failed to complete successfully.
6836  **/
6837 void
6838 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6839 {
6840         int fcp_qidx;
6841
6842         /* Unset mailbox command work queue */
6843         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6844         /* Unset ELS work queue */
6845         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6846         /* Unset unsolicited receive queue */
6847         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6848         /* Unset FCP work queue */
6849         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6850                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6851         /* Unset mailbox command complete queue */
6852         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6853         /* Unset ELS complete queue */
6854         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6855         /* Unset FCP response complete queue */
6856         fcp_qidx = 0;
6857         do {
6858                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6859         } while (++fcp_qidx < phba->cfg_fcp_eq_count);
6860         /* Unset fast-path event queue */
6861         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6862                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6863         /* Unset slow-path event queue */
6864         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6865 }
6866
6867 /**
6868  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6869  * @phba: pointer to lpfc hba data structure.
6870  *
6871  * This routine is invoked to allocate and set up a pool of completion queue
6872  * events. The body of the completion queue event is a completion queue entry
6873  * CQE. For now, this pool is used for the interrupt service routine to queue
6874  * the following HBA completion queue events for the worker thread to process:
6875  *   - Mailbox asynchronous events
6876  *   - Receive queue completion unsolicited events
6877  * Later, this can be used for all the slow-path events.
6878  *
6879  * Return codes
6880  *      0 - successful
6881  *      -ENOMEM - No available memory
6882  **/
6883 static int
6884 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6885 {
6886         struct lpfc_cq_event *cq_event;
6887         int i;
6888
6889         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6890                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6891                 if (!cq_event)
6892                         goto out_pool_create_fail;
6893                 list_add_tail(&cq_event->list,
6894                               &phba->sli4_hba.sp_cqe_event_pool);
6895         }
6896         return 0;
6897
6898 out_pool_create_fail:
6899         lpfc_sli4_cq_event_pool_destroy(phba);
6900         return -ENOMEM;
6901 }
6902
6903 /**
6904  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6905  * @phba: pointer to lpfc hba data structure.
6906  *
6907  * This routine is invoked to free the pool of completion queue events at
6908  * driver unload time. Note that, it is the responsibility of the driver
6909  * cleanup routine to free all the outstanding completion-queue events
6910  * allocated from this pool back into the pool before invoking this routine
6911  * to destroy the pool.
6912  **/
6913 static void
6914 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6915 {
6916         struct lpfc_cq_event *cq_event, *next_cq_event;
6917
6918         list_for_each_entry_safe(cq_event, next_cq_event,
6919                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6920                 list_del(&cq_event->list);
6921                 kfree(cq_event);
6922         }
6923 }
6924
6925 /**
6926  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6927  * @phba: pointer to lpfc hba data structure.
6928  *
6929  * This routine is the lock free version of the API invoked to allocate a
6930  * completion-queue event from the free pool.
6931  *
6932  * Return: Pointer to the newly allocated completion-queue event if successful
6933  *         NULL otherwise.
6934  **/
6935 struct lpfc_cq_event *
6936 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6937 {
6938         struct lpfc_cq_event *cq_event = NULL;
6939
6940         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6941                          struct lpfc_cq_event, list);
6942         return cq_event;
6943 }
6944
6945 /**
6946  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6947  * @phba: pointer to lpfc hba data structure.
6948  *
6949  * This routine is the lock version of the API invoked to allocate a
6950  * completion-queue event from the free pool.
6951  *
6952  * Return: Pointer to the newly allocated completion-queue event if successful
6953  *         NULL otherwise.
6954  **/
6955 struct lpfc_cq_event *
6956 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6957 {
6958         struct lpfc_cq_event *cq_event;
6959         unsigned long iflags;
6960
6961         spin_lock_irqsave(&phba->hbalock, iflags);
6962         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6963         spin_unlock_irqrestore(&phba->hbalock, iflags);
6964         return cq_event;
6965 }
6966
6967 /**
6968  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6969  * @phba: pointer to lpfc hba data structure.
6970  * @cq_event: pointer to the completion queue event to be freed.
6971  *
6972  * This routine is the lock free version of the API invoked to release a
6973  * completion-queue event back into the free pool.
6974  **/
6975 void
6976 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6977                              struct lpfc_cq_event *cq_event)
6978 {
6979         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6980 }
6981
6982 /**
6983  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6984  * @phba: pointer to lpfc hba data structure.
6985  * @cq_event: pointer to the completion queue event to be freed.
6986  *
6987  * This routine is the lock version of the API invoked to release a
6988  * completion-queue event back into the free pool.
6989  **/
6990 void
6991 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6992                            struct lpfc_cq_event *cq_event)
6993 {
6994         unsigned long iflags;
6995         spin_lock_irqsave(&phba->hbalock, iflags);
6996         __lpfc_sli4_cq_event_release(phba, cq_event);
6997         spin_unlock_irqrestore(&phba->hbalock, iflags);
6998 }
6999
7000 /**
7001  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7002  * @phba: pointer to lpfc hba data structure.
7003  *
7004  * This routine is to free all the pending completion-queue events to the
7005  * back into the free pool for device reset.
7006  **/
7007 static void
7008 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7009 {
7010         LIST_HEAD(cqelist);
7011         struct lpfc_cq_event *cqe;
7012         unsigned long iflags;
7013
7014         /* Retrieve all the pending WCQEs from pending WCQE lists */
7015         spin_lock_irqsave(&phba->hbalock, iflags);
7016         /* Pending FCP XRI abort events */
7017         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7018                          &cqelist);
7019         /* Pending ELS XRI abort events */
7020         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7021                          &cqelist);
7022         /* Pending asynnc events */
7023         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7024                          &cqelist);
7025         spin_unlock_irqrestore(&phba->hbalock, iflags);
7026
7027         while (!list_empty(&cqelist)) {
7028                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7029                 lpfc_sli4_cq_event_release(phba, cqe);
7030         }
7031 }
7032
7033 /**
7034  * lpfc_pci_function_reset - Reset pci function.
7035  * @phba: pointer to lpfc hba data structure.
7036  *
7037  * This routine is invoked to request a PCI function reset. It will destroys
7038  * all resources assigned to the PCI function which originates this request.
7039  *
7040  * Return codes
7041  *      0 - successful
7042  *      -ENOMEM - No available memory
7043  *      -EIO - The mailbox failed to complete successfully.
7044  **/
7045 int
7046 lpfc_pci_function_reset(struct lpfc_hba *phba)
7047 {
7048         LPFC_MBOXQ_t *mboxq;
7049         uint32_t rc = 0, if_type;
7050         uint32_t shdr_status, shdr_add_status;
7051         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7052         union lpfc_sli4_cfg_shdr *shdr;
7053         struct lpfc_register reg_data;
7054
7055         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7056         switch (if_type) {
7057         case LPFC_SLI_INTF_IF_TYPE_0:
7058                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7059                                                        GFP_KERNEL);
7060                 if (!mboxq) {
7061                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7062                                         "0494 Unable to allocate memory for "
7063                                         "issuing SLI_FUNCTION_RESET mailbox "
7064                                         "command\n");
7065                         return -ENOMEM;
7066                 }
7067
7068                 /* Setup PCI function reset mailbox-ioctl command */
7069                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7070                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7071                                  LPFC_SLI4_MBX_EMBED);
7072                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7073                 shdr = (union lpfc_sli4_cfg_shdr *)
7074                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7075                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7076                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7077                                          &shdr->response);
7078                 if (rc != MBX_TIMEOUT)
7079                         mempool_free(mboxq, phba->mbox_mem_pool);
7080                 if (shdr_status || shdr_add_status || rc) {
7081                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7082                                         "0495 SLI_FUNCTION_RESET mailbox "
7083                                         "failed with status x%x add_status x%x,"
7084                                         " mbx status x%x\n",
7085                                         shdr_status, shdr_add_status, rc);
7086                         rc = -ENXIO;
7087                 }
7088                 break;
7089         case LPFC_SLI_INTF_IF_TYPE_2:
7090                 for (num_resets = 0;
7091                      num_resets < MAX_IF_TYPE_2_RESETS;
7092                      num_resets++) {
7093                         reg_data.word0 = 0;
7094                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7095                                LPFC_SLIPORT_LITTLE_ENDIAN);
7096                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7097                                LPFC_SLIPORT_INIT_PORT);
7098                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7099                                CTRLregaddr);
7100
7101                         /*
7102                          * Poll the Port Status Register and wait for RDY for
7103                          * up to 10 seconds.  If the port doesn't respond, treat
7104                          * it as an error.  If the port responds with RN, start
7105                          * the loop again.
7106                          */
7107                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7108                                 msleep(10);
7109                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7110                                               STATUSregaddr, &reg_data.word0)) {
7111                                         rc = -ENODEV;
7112                                         goto out;
7113                                 }
7114                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7115                                         break;
7116                                 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7117                                         reset_again++;
7118                                         break;
7119                                 }
7120                         }
7121
7122                         /*
7123                          * If the port responds to the init request with
7124                          * reset needed, delay for a bit and restart the loop.
7125                          */
7126                         if (reset_again) {
7127                                 msleep(10);
7128                                 reset_again = 0;
7129                                 continue;
7130                         }
7131
7132                         /* Detect any port errors. */
7133                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7134                             (rdy_chk >= 1000)) {
7135                                 phba->work_status[0] = readl(
7136                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7137                                 phba->work_status[1] = readl(
7138                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7139                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7140                                         "2890 Port Error Detected "
7141                                         "during Port Reset: "
7142                                         "port status reg 0x%x, "
7143                                         "error 1=0x%x, error 2=0x%x\n",
7144                                         reg_data.word0,
7145                                         phba->work_status[0],
7146                                         phba->work_status[1]);
7147                                 rc = -ENODEV;
7148                         }
7149
7150                         /*
7151                          * Terminate the outer loop provided the Port indicated
7152                          * ready within 10 seconds.
7153                          */
7154                         if (rdy_chk < 1000)
7155                                 break;
7156                 }
7157                 /* delay driver action following IF_TYPE_2 function reset */
7158                 msleep(100);
7159                 break;
7160         case LPFC_SLI_INTF_IF_TYPE_1:
7161         default:
7162                 break;
7163         }
7164
7165 out:
7166         /* Catch the not-ready port failure after a port reset. */
7167         if (num_resets >= MAX_IF_TYPE_2_RESETS)
7168                 rc = -ENODEV;
7169
7170         return rc;
7171 }
7172
7173 /**
7174  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7175  * @phba: pointer to lpfc hba data structure.
7176  * @cnt: number of nop mailbox commands to send.
7177  *
7178  * This routine is invoked to send a number @cnt of NOP mailbox command and
7179  * wait for each command to complete.
7180  *
7181  * Return: the number of NOP mailbox command completed.
7182  **/
7183 static int
7184 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7185 {
7186         LPFC_MBOXQ_t *mboxq;
7187         int length, cmdsent;
7188         uint32_t mbox_tmo;
7189         uint32_t rc = 0;
7190         uint32_t shdr_status, shdr_add_status;
7191         union lpfc_sli4_cfg_shdr *shdr;
7192
7193         if (cnt == 0) {
7194                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7195                                 "2518 Requested to send 0 NOP mailbox cmd\n");
7196                 return cnt;
7197         }
7198
7199         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7200         if (!mboxq) {
7201                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7202                                 "2519 Unable to allocate memory for issuing "
7203                                 "NOP mailbox command\n");
7204                 return 0;
7205         }
7206
7207         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7208         length = (sizeof(struct lpfc_mbx_nop) -
7209                   sizeof(struct lpfc_sli4_cfg_mhdr));
7210         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7211                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7212
7213         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7214                 if (!phba->sli4_hba.intr_enable)
7215                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7216                 else {
7217                         mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7218                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7219                 }
7220                 if (rc == MBX_TIMEOUT)
7221                         break;
7222                 /* Check return status */
7223                 shdr = (union lpfc_sli4_cfg_shdr *)
7224                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7225                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7226                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7227                                          &shdr->response);
7228                 if (shdr_status || shdr_add_status || rc) {
7229                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7230                                         "2520 NOP mailbox command failed "
7231                                         "status x%x add_status x%x mbx "
7232                                         "status x%x\n", shdr_status,
7233                                         shdr_add_status, rc);
7234                         break;
7235                 }
7236         }
7237
7238         if (rc != MBX_TIMEOUT)
7239                 mempool_free(mboxq, phba->mbox_mem_pool);
7240
7241         return cmdsent;
7242 }
7243
7244 /**
7245  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7246  * @phba: pointer to lpfc hba data structure.
7247  *
7248  * This routine is invoked to set up the PCI device memory space for device
7249  * with SLI-4 interface spec.
7250  *
7251  * Return codes
7252  *      0 - successful
7253  *      other values - error
7254  **/
7255 static int
7256 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7257 {
7258         struct pci_dev *pdev;
7259         unsigned long bar0map_len, bar1map_len, bar2map_len;
7260         int error = -ENODEV;
7261         uint32_t if_type;
7262
7263         /* Obtain PCI device reference */
7264         if (!phba->pcidev)
7265                 return error;
7266         else
7267                 pdev = phba->pcidev;
7268
7269         /* Set the device DMA mask size */
7270         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7271          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7272                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7273                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7274                         return error;
7275                 }
7276         }
7277
7278         /*
7279          * The BARs and register set definitions and offset locations are
7280          * dependent on the if_type.
7281          */
7282         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7283                                   &phba->sli4_hba.sli_intf.word0)) {
7284                 return error;
7285         }
7286
7287         /* There is no SLI3 failback for SLI4 devices. */
7288         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7289             LPFC_SLI_INTF_VALID) {
7290                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7291                                 "2894 SLI_INTF reg contents invalid "
7292                                 "sli_intf reg 0x%x\n",
7293                                 phba->sli4_hba.sli_intf.word0);
7294                 return error;
7295         }
7296
7297         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7298         /*
7299          * Get the bus address of SLI4 device Bar regions and the
7300          * number of bytes required by each mapping. The mapping of the
7301          * particular PCI BARs regions is dependent on the type of
7302          * SLI4 device.
7303          */
7304         if (pci_resource_start(pdev, 0)) {
7305                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7306                 bar0map_len = pci_resource_len(pdev, 0);
7307
7308                 /*
7309                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7310                  * addr
7311                  */
7312                 phba->sli4_hba.conf_regs_memmap_p =
7313                         ioremap(phba->pci_bar0_map, bar0map_len);
7314                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7315                         dev_printk(KERN_ERR, &pdev->dev,
7316                                    "ioremap failed for SLI4 PCI config "
7317                                    "registers.\n");
7318                         goto out;
7319                 }
7320                 /* Set up BAR0 PCI config space register memory map */
7321                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7322         } else {
7323                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7324                 bar0map_len = pci_resource_len(pdev, 1);
7325                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7326                         dev_printk(KERN_ERR, &pdev->dev,
7327                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7328                         goto out;
7329                 }
7330                 phba->sli4_hba.conf_regs_memmap_p =
7331                                 ioremap(phba->pci_bar0_map, bar0map_len);
7332                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7333                         dev_printk(KERN_ERR, &pdev->dev,
7334                                 "ioremap failed for SLI4 PCI config "
7335                                 "registers.\n");
7336                                 goto out;
7337                 }
7338                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7339         }
7340
7341         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7342             (pci_resource_start(pdev, 2))) {
7343                 /*
7344                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7345                  * virtual address and setup the registers.
7346                  */
7347                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7348                 bar1map_len = pci_resource_len(pdev, 2);
7349                 phba->sli4_hba.ctrl_regs_memmap_p =
7350                                 ioremap(phba->pci_bar1_map, bar1map_len);
7351                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7352                         dev_printk(KERN_ERR, &pdev->dev,
7353                            "ioremap failed for SLI4 HBA control registers.\n");
7354                         goto out_iounmap_conf;
7355                 }
7356                 lpfc_sli4_bar1_register_memmap(phba);
7357         }
7358
7359         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7360             (pci_resource_start(pdev, 4))) {
7361                 /*
7362                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7363                  * virtual address and setup the registers.
7364                  */
7365                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7366                 bar2map_len = pci_resource_len(pdev, 4);
7367                 phba->sli4_hba.drbl_regs_memmap_p =
7368                                 ioremap(phba->pci_bar2_map, bar2map_len);
7369                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7370                         dev_printk(KERN_ERR, &pdev->dev,
7371                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7372                         goto out_iounmap_ctrl;
7373                 }
7374                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7375                 if (error)
7376                         goto out_iounmap_all;
7377         }
7378
7379         return 0;
7380
7381 out_iounmap_all:
7382         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7383 out_iounmap_ctrl:
7384         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7385 out_iounmap_conf:
7386         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7387 out:
7388         return error;
7389 }
7390
7391 /**
7392  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7393  * @phba: pointer to lpfc hba data structure.
7394  *
7395  * This routine is invoked to unset the PCI device memory space for device
7396  * with SLI-4 interface spec.
7397  **/
7398 static void
7399 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7400 {
7401         struct pci_dev *pdev;
7402
7403         /* Obtain PCI device reference */
7404         if (!phba->pcidev)
7405                 return;
7406         else
7407                 pdev = phba->pcidev;
7408
7409         /* Free coherent DMA memory allocated */
7410
7411         /* Unmap I/O memory space */
7412         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7413         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7414         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7415
7416         return;
7417 }
7418
7419 /**
7420  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7421  * @phba: pointer to lpfc hba data structure.
7422  *
7423  * This routine is invoked to enable the MSI-X interrupt vectors to device
7424  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7425  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7426  * invoked, enables either all or nothing, depending on the current
7427  * availability of PCI vector resources. The device driver is responsible
7428  * for calling the individual request_irq() to register each MSI-X vector
7429  * with a interrupt handler, which is done in this function. Note that
7430  * later when device is unloading, the driver should always call free_irq()
7431  * on all MSI-X vectors it has done request_irq() on before calling
7432  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7433  * will be left with MSI-X enabled and leaks its vectors.
7434  *
7435  * Return codes
7436  *   0 - successful
7437  *   other values - error
7438  **/
7439 static int
7440 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7441 {
7442         int rc, i;
7443         LPFC_MBOXQ_t *pmb;
7444
7445         /* Set up MSI-X multi-message vectors */
7446         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7447                 phba->msix_entries[i].entry = i;
7448
7449         /* Configure MSI-X capability structure */
7450         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7451                                 ARRAY_SIZE(phba->msix_entries));
7452         if (rc) {
7453                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7454                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7455                 goto msi_fail_out;
7456         }
7457         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7458                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7459                                 "0477 MSI-X entry[%d]: vector=x%x "
7460                                 "message=%d\n", i,
7461                                 phba->msix_entries[i].vector,
7462                                 phba->msix_entries[i].entry);
7463         /*
7464          * Assign MSI-X vectors to interrupt handlers
7465          */
7466
7467         /* vector-0 is associated to slow-path handler */
7468         rc = request_irq(phba->msix_entries[0].vector,
7469                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7470                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7471         if (rc) {
7472                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7473                                 "0421 MSI-X slow-path request_irq failed "
7474                                 "(%d)\n", rc);
7475                 goto msi_fail_out;
7476         }
7477
7478         /* vector-1 is associated to fast-path handler */
7479         rc = request_irq(phba->msix_entries[1].vector,
7480                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7481                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7482
7483         if (rc) {
7484                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7485                                 "0429 MSI-X fast-path request_irq failed "
7486                                 "(%d)\n", rc);
7487                 goto irq_fail_out;
7488         }
7489
7490         /*
7491          * Configure HBA MSI-X attention conditions to messages
7492          */
7493         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7494
7495         if (!pmb) {
7496                 rc = -ENOMEM;
7497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7498                                 "0474 Unable to allocate memory for issuing "
7499                                 "MBOX_CONFIG_MSI command\n");
7500                 goto mem_fail_out;
7501         }
7502         rc = lpfc_config_msi(phba, pmb);
7503         if (rc)
7504                 goto mbx_fail_out;
7505         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7506         if (rc != MBX_SUCCESS) {
7507                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7508                                 "0351 Config MSI mailbox command failed, "
7509                                 "mbxCmd x%x, mbxStatus x%x\n",
7510                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7511                 goto mbx_fail_out;
7512         }
7513
7514         /* Free memory allocated for mailbox command */
7515         mempool_free(pmb, phba->mbox_mem_pool);
7516         return rc;
7517
7518 mbx_fail_out:
7519         /* Free memory allocated for mailbox command */
7520         mempool_free(pmb, phba->mbox_mem_pool);
7521
7522 mem_fail_out:
7523         /* free the irq already requested */
7524         free_irq(phba->msix_entries[1].vector, phba);
7525
7526 irq_fail_out:
7527         /* free the irq already requested */
7528         free_irq(phba->msix_entries[0].vector, phba);
7529
7530 msi_fail_out:
7531         /* Unconfigure MSI-X capability structure */
7532         pci_disable_msix(phba->pcidev);
7533         return rc;
7534 }
7535
7536 /**
7537  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7538  * @phba: pointer to lpfc hba data structure.
7539  *
7540  * This routine is invoked to release the MSI-X vectors and then disable the
7541  * MSI-X interrupt mode to device with SLI-3 interface spec.
7542  **/
7543 static void
7544 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7545 {
7546         int i;
7547
7548         /* Free up MSI-X multi-message vectors */
7549         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7550                 free_irq(phba->msix_entries[i].vector, phba);
7551         /* Disable MSI-X */
7552         pci_disable_msix(phba->pcidev);
7553
7554         return;
7555 }
7556
7557 /**
7558  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7559  * @phba: pointer to lpfc hba data structure.
7560  *
7561  * This routine is invoked to enable the MSI interrupt mode to device with
7562  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7563  * enable the MSI vector. The device driver is responsible for calling the
7564  * request_irq() to register MSI vector with a interrupt the handler, which
7565  * is done in this function.
7566  *
7567  * Return codes
7568  *      0 - successful
7569  *      other values - error
7570  */
7571 static int
7572 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7573 {
7574         int rc;
7575
7576         rc = pci_enable_msi(phba->pcidev);
7577         if (!rc)
7578                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7579                                 "0462 PCI enable MSI mode success.\n");
7580         else {
7581                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7582                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7583                 return rc;
7584         }
7585
7586         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7587                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7588         if (rc) {
7589                 pci_disable_msi(phba->pcidev);
7590                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7591                                 "0478 MSI request_irq failed (%d)\n", rc);
7592         }
7593         return rc;
7594 }
7595
7596 /**
7597  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7598  * @phba: pointer to lpfc hba data structure.
7599  *
7600  * This routine is invoked to disable the MSI interrupt mode to device with
7601  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7602  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7603  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7604  * its vector.
7605  */
7606 static void
7607 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7608 {
7609         free_irq(phba->pcidev->irq, phba);
7610         pci_disable_msi(phba->pcidev);
7611         return;
7612 }
7613
7614 /**
7615  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7616  * @phba: pointer to lpfc hba data structure.
7617  *
7618  * This routine is invoked to enable device interrupt and associate driver's
7619  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7620  * spec. Depends on the interrupt mode configured to the driver, the driver
7621  * will try to fallback from the configured interrupt mode to an interrupt
7622  * mode which is supported by the platform, kernel, and device in the order
7623  * of:
7624  * MSI-X -> MSI -> IRQ.
7625  *
7626  * Return codes
7627  *   0 - successful
7628  *   other values - error
7629  **/
7630 static uint32_t
7631 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7632 {
7633         uint32_t intr_mode = LPFC_INTR_ERROR;
7634         int retval;
7635
7636         if (cfg_mode == 2) {
7637                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7638                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7639                 if (!retval) {
7640                         /* Now, try to enable MSI-X interrupt mode */
7641                         retval = lpfc_sli_enable_msix(phba);
7642                         if (!retval) {
7643                                 /* Indicate initialization to MSI-X mode */
7644                                 phba->intr_type = MSIX;
7645                                 intr_mode = 2;
7646                         }
7647                 }
7648         }
7649
7650         /* Fallback to MSI if MSI-X initialization failed */
7651         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7652                 retval = lpfc_sli_enable_msi(phba);
7653                 if (!retval) {
7654                         /* Indicate initialization to MSI mode */
7655                         phba->intr_type = MSI;
7656                         intr_mode = 1;
7657                 }
7658         }
7659
7660         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7661         if (phba->intr_type == NONE) {
7662                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7663                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7664                 if (!retval) {
7665                         /* Indicate initialization to INTx mode */
7666                         phba->intr_type = INTx;
7667                         intr_mode = 0;
7668                 }
7669         }
7670         return intr_mode;
7671 }
7672
7673 /**
7674  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7675  * @phba: pointer to lpfc hba data structure.
7676  *
7677  * This routine is invoked to disable device interrupt and disassociate the
7678  * driver's interrupt handler(s) from interrupt vector(s) to device with
7679  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7680  * release the interrupt vector(s) for the message signaled interrupt.
7681  **/
7682 static void
7683 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7684 {
7685         /* Disable the currently initialized interrupt mode */
7686         if (phba->intr_type == MSIX)
7687                 lpfc_sli_disable_msix(phba);
7688         else if (phba->intr_type == MSI)
7689                 lpfc_sli_disable_msi(phba);
7690         else if (phba->intr_type == INTx)
7691                 free_irq(phba->pcidev->irq, phba);
7692
7693         /* Reset interrupt management states */
7694         phba->intr_type = NONE;
7695         phba->sli.slistat.sli_intr = 0;
7696
7697         return;
7698 }
7699
7700 /**
7701  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7702  * @phba: pointer to lpfc hba data structure.
7703  *
7704  * This routine is invoked to enable the MSI-X interrupt vectors to device
7705  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7706  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7707  * enables either all or nothing, depending on the current availability of
7708  * PCI vector resources. The device driver is responsible for calling the
7709  * individual request_irq() to register each MSI-X vector with a interrupt
7710  * handler, which is done in this function. Note that later when device is
7711  * unloading, the driver should always call free_irq() on all MSI-X vectors
7712  * it has done request_irq() on before calling pci_disable_msix(). Failure
7713  * to do so results in a BUG_ON() and a device will be left with MSI-X
7714  * enabled and leaks its vectors.
7715  *
7716  * Return codes
7717  * 0 - successful
7718  * other values - error
7719  **/
7720 static int
7721 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7722 {
7723         int vectors, rc, index;
7724
7725         /* Set up MSI-X multi-message vectors */
7726         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7727                 phba->sli4_hba.msix_entries[index].entry = index;
7728
7729         /* Configure MSI-X capability structure */
7730         vectors = phba->sli4_hba.cfg_eqn;
7731 enable_msix_vectors:
7732         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7733                              vectors);
7734         if (rc > 1) {
7735                 vectors = rc;
7736                 goto enable_msix_vectors;
7737         } else if (rc) {
7738                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7739                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7740                 goto msi_fail_out;
7741         }
7742
7743         /* Log MSI-X vector assignment */
7744         for (index = 0; index < vectors; index++)
7745                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7746                                 "0489 MSI-X entry[%d]: vector=x%x "
7747                                 "message=%d\n", index,
7748                                 phba->sli4_hba.msix_entries[index].vector,
7749                                 phba->sli4_hba.msix_entries[index].entry);
7750         /*
7751          * Assign MSI-X vectors to interrupt handlers
7752          */
7753         if (vectors > 1)
7754                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7755                                  &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7756                                  LPFC_SP_DRIVER_HANDLER_NAME, phba);
7757         else
7758                 /* All Interrupts need to be handled by one EQ */
7759                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7760                                  &lpfc_sli4_intr_handler, IRQF_SHARED,
7761                                  LPFC_DRIVER_NAME, phba);
7762         if (rc) {
7763                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7764                                 "0485 MSI-X slow-path request_irq failed "
7765                                 "(%d)\n", rc);
7766                 goto msi_fail_out;
7767         }
7768
7769         /* The rest of the vector(s) are associated to fast-path handler(s) */
7770         for (index = 1; index < vectors; index++) {
7771                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7772                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7773                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7774                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7775                                  LPFC_FP_DRIVER_HANDLER_NAME,
7776                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7777                 if (rc) {
7778                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7779                                         "0486 MSI-X fast-path (%d) "
7780                                         "request_irq failed (%d)\n", index, rc);
7781                         goto cfg_fail_out;
7782                 }
7783         }
7784         phba->sli4_hba.msix_vec_nr = vectors;
7785
7786         return rc;
7787
7788 cfg_fail_out:
7789         /* free the irq already requested */
7790         for (--index; index >= 1; index--)
7791                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7792                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7793
7794         /* free the irq already requested */
7795         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7796
7797 msi_fail_out:
7798         /* Unconfigure MSI-X capability structure */
7799         pci_disable_msix(phba->pcidev);
7800         return rc;
7801 }
7802
7803 /**
7804  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7805  * @phba: pointer to lpfc hba data structure.
7806  *
7807  * This routine is invoked to release the MSI-X vectors and then disable the
7808  * MSI-X interrupt mode to device with SLI-4 interface spec.
7809  **/
7810 static void
7811 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7812 {
7813         int index;
7814
7815         /* Free up MSI-X multi-message vectors */
7816         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7817
7818         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7819                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7820                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7821
7822         /* Disable MSI-X */
7823         pci_disable_msix(phba->pcidev);
7824
7825         return;
7826 }
7827
7828 /**
7829  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7830  * @phba: pointer to lpfc hba data structure.
7831  *
7832  * This routine is invoked to enable the MSI interrupt mode to device with
7833  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7834  * to enable the MSI vector. The device driver is responsible for calling
7835  * the request_irq() to register MSI vector with a interrupt the handler,
7836  * which is done in this function.
7837  *
7838  * Return codes
7839  *      0 - successful
7840  *      other values - error
7841  **/
7842 static int
7843 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7844 {
7845         int rc, index;
7846
7847         rc = pci_enable_msi(phba->pcidev);
7848         if (!rc)
7849                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7850                                 "0487 PCI enable MSI mode success.\n");
7851         else {
7852                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7853                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7854                 return rc;
7855         }
7856
7857         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7858                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7859         if (rc) {
7860                 pci_disable_msi(phba->pcidev);
7861                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7862                                 "0490 MSI request_irq failed (%d)\n", rc);
7863                 return rc;
7864         }
7865
7866         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7867                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7868                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7869         }
7870
7871         return 0;
7872 }
7873
7874 /**
7875  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7876  * @phba: pointer to lpfc hba data structure.
7877  *
7878  * This routine is invoked to disable the MSI interrupt mode to device with
7879  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7880  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7881  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7882  * its vector.
7883  **/
7884 static void
7885 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7886 {
7887         free_irq(phba->pcidev->irq, phba);
7888         pci_disable_msi(phba->pcidev);
7889         return;
7890 }
7891
7892 /**
7893  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7894  * @phba: pointer to lpfc hba data structure.
7895  *
7896  * This routine is invoked to enable device interrupt and associate driver's
7897  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7898  * interface spec. Depends on the interrupt mode configured to the driver,
7899  * the driver will try to fallback from the configured interrupt mode to an
7900  * interrupt mode which is supported by the platform, kernel, and device in
7901  * the order of:
7902  * MSI-X -> MSI -> IRQ.
7903  *
7904  * Return codes
7905  *      0 - successful
7906  *      other values - error
7907  **/
7908 static uint32_t
7909 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7910 {
7911         uint32_t intr_mode = LPFC_INTR_ERROR;
7912         int retval, index;
7913
7914         if (cfg_mode == 2) {
7915                 /* Preparation before conf_msi mbox cmd */
7916                 retval = 0;
7917                 if (!retval) {
7918                         /* Now, try to enable MSI-X interrupt mode */
7919                         retval = lpfc_sli4_enable_msix(phba);
7920                         if (!retval) {
7921                                 /* Indicate initialization to MSI-X mode */
7922                                 phba->intr_type = MSIX;
7923                                 intr_mode = 2;
7924                         }
7925                 }
7926         }
7927
7928         /* Fallback to MSI if MSI-X initialization failed */
7929         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7930                 retval = lpfc_sli4_enable_msi(phba);
7931                 if (!retval) {
7932                         /* Indicate initialization to MSI mode */
7933                         phba->intr_type = MSI;
7934                         intr_mode = 1;
7935                 }
7936         }
7937
7938         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7939         if (phba->intr_type == NONE) {
7940                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7941                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7942                 if (!retval) {
7943                         /* Indicate initialization to INTx mode */
7944                         phba->intr_type = INTx;
7945                         intr_mode = 0;
7946                         for (index = 0; index < phba->cfg_fcp_eq_count;
7947                              index++) {
7948                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7949                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7950                         }
7951                 }
7952         }
7953         return intr_mode;
7954 }
7955
7956 /**
7957  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7958  * @phba: pointer to lpfc hba data structure.
7959  *
7960  * This routine is invoked to disable device interrupt and disassociate
7961  * the driver's interrupt handler(s) from interrupt vector(s) to device
7962  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7963  * will release the interrupt vector(s) for the message signaled interrupt.
7964  **/
7965 static void
7966 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7967 {
7968         /* Disable the currently initialized interrupt mode */
7969         if (phba->intr_type == MSIX)
7970                 lpfc_sli4_disable_msix(phba);
7971         else if (phba->intr_type == MSI)
7972                 lpfc_sli4_disable_msi(phba);
7973         else if (phba->intr_type == INTx)
7974                 free_irq(phba->pcidev->irq, phba);
7975
7976         /* Reset interrupt management states */
7977         phba->intr_type = NONE;
7978         phba->sli.slistat.sli_intr = 0;
7979
7980         return;
7981 }
7982
7983 /**
7984  * lpfc_unset_hba - Unset SLI3 hba device initialization
7985  * @phba: pointer to lpfc hba data structure.
7986  *
7987  * This routine is invoked to unset the HBA device initialization steps to
7988  * a device with SLI-3 interface spec.
7989  **/
7990 static void
7991 lpfc_unset_hba(struct lpfc_hba *phba)
7992 {
7993         struct lpfc_vport *vport = phba->pport;
7994         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7995
7996         spin_lock_irq(shost->host_lock);
7997         vport->load_flag |= FC_UNLOADING;
7998         spin_unlock_irq(shost->host_lock);
7999
8000         lpfc_stop_hba_timers(phba);
8001
8002         phba->pport->work_port_events = 0;
8003
8004         lpfc_sli_hba_down(phba);
8005
8006         lpfc_sli_brdrestart(phba);
8007
8008         lpfc_sli_disable_intr(phba);
8009
8010         return;
8011 }
8012
8013 /**
8014  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8015  * @phba: pointer to lpfc hba data structure.
8016  *
8017  * This routine is invoked to unset the HBA device initialization steps to
8018  * a device with SLI-4 interface spec.
8019  **/
8020 static void
8021 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8022 {
8023         struct lpfc_vport *vport = phba->pport;
8024         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8025
8026         spin_lock_irq(shost->host_lock);
8027         vport->load_flag |= FC_UNLOADING;
8028         spin_unlock_irq(shost->host_lock);
8029
8030         phba->pport->work_port_events = 0;
8031
8032         /* Stop the SLI4 device port */
8033         lpfc_stop_port(phba);
8034
8035         lpfc_sli4_disable_intr(phba);
8036
8037         /* Reset SLI4 HBA FCoE function */
8038         lpfc_pci_function_reset(phba);
8039         lpfc_sli4_queue_destroy(phba);
8040
8041         return;
8042 }
8043
8044 /**
8045  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8046  * @phba: Pointer to HBA context object.
8047  *
8048  * This function is called in the SLI4 code path to wait for completion
8049  * of device's XRIs exchange busy. It will check the XRI exchange busy
8050  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8051  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8052  * I/Os every 30 seconds, log error message, and wait forever. Only when
8053  * all XRI exchange busy complete, the driver unload shall proceed with
8054  * invoking the function reset ioctl mailbox command to the CNA and the
8055  * the rest of the driver unload resource release.
8056  **/
8057 static void
8058 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8059 {
8060         int wait_time = 0;
8061         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8062         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8063
8064         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8065                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8066                         if (!fcp_xri_cmpl)
8067                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8068                                                 "2877 FCP XRI exchange busy "
8069                                                 "wait time: %d seconds.\n",
8070                                                 wait_time/1000);
8071                         if (!els_xri_cmpl)
8072                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8073                                                 "2878 ELS XRI exchange busy "
8074                                                 "wait time: %d seconds.\n",
8075                                                 wait_time/1000);
8076                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8077                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8078                 } else {
8079                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8080                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8081                 }
8082                 fcp_xri_cmpl =
8083                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8084                 els_xri_cmpl =
8085                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8086         }
8087 }
8088
8089 /**
8090  * lpfc_sli4_hba_unset - Unset the fcoe hba
8091  * @phba: Pointer to HBA context object.
8092  *
8093  * This function is called in the SLI4 code path to reset the HBA's FCoE
8094  * function. The caller is not required to hold any lock. This routine
8095  * issues PCI function reset mailbox command to reset the FCoE function.
8096  * At the end of the function, it calls lpfc_hba_down_post function to
8097  * free any pending commands.
8098  **/
8099 static void
8100 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8101 {
8102         int wait_cnt = 0;
8103         LPFC_MBOXQ_t *mboxq;
8104         struct pci_dev *pdev = phba->pcidev;
8105
8106         lpfc_stop_hba_timers(phba);
8107         phba->sli4_hba.intr_enable = 0;
8108
8109         /*
8110          * Gracefully wait out the potential current outstanding asynchronous
8111          * mailbox command.
8112          */
8113
8114         /* First, block any pending async mailbox command from posted */
8115         spin_lock_irq(&phba->hbalock);
8116         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8117         spin_unlock_irq(&phba->hbalock);
8118         /* Now, trying to wait it out if we can */
8119         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8120                 msleep(10);
8121                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8122                         break;
8123         }
8124         /* Forcefully release the outstanding mailbox command if timed out */
8125         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8126                 spin_lock_irq(&phba->hbalock);
8127                 mboxq = phba->sli.mbox_active;
8128                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8129                 __lpfc_mbox_cmpl_put(phba, mboxq);
8130                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8131                 phba->sli.mbox_active = NULL;
8132                 spin_unlock_irq(&phba->hbalock);
8133         }
8134
8135         /* Abort all iocbs associated with the hba */
8136         lpfc_sli_hba_iocb_abort(phba);
8137
8138         /* Wait for completion of device XRI exchange busy */
8139         lpfc_sli4_xri_exchange_busy_wait(phba);
8140
8141         /* Disable PCI subsystem interrupt */
8142         lpfc_sli4_disable_intr(phba);
8143
8144         /* Disable SR-IOV if enabled */
8145         if (phba->cfg_sriov_nr_virtfn)
8146                 pci_disable_sriov(pdev);
8147
8148         /* Stop kthread signal shall trigger work_done one more time */
8149         kthread_stop(phba->worker_thread);
8150
8151         /* Reset SLI4 HBA FCoE function */
8152         lpfc_pci_function_reset(phba);
8153         lpfc_sli4_queue_destroy(phba);
8154
8155         /* Stop the SLI4 device port */
8156         phba->pport->work_port_events = 0;
8157 }
8158
8159  /**
8160  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8161  * @phba: Pointer to HBA context object.
8162  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8163  *
8164  * This function is called in the SLI4 code path to read the port's
8165  * sli4 capabilities.
8166  *
8167  * This function may be be called from any context that can block-wait
8168  * for the completion.  The expectation is that this routine is called
8169  * typically from probe_one or from the online routine.
8170  **/
8171 int
8172 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8173 {
8174         int rc;
8175         struct lpfc_mqe *mqe;
8176         struct lpfc_pc_sli4_params *sli4_params;
8177         uint32_t mbox_tmo;
8178
8179         rc = 0;
8180         mqe = &mboxq->u.mqe;
8181
8182         /* Read the port's SLI4 Parameters port capabilities */
8183         lpfc_pc_sli4_params(mboxq);
8184         if (!phba->sli4_hba.intr_enable)
8185                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8186         else {
8187                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8188                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8189         }
8190
8191         if (unlikely(rc))
8192                 return 1;
8193
8194         sli4_params = &phba->sli4_hba.pc_sli4_params;
8195         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8196         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8197         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8198         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8199                                              &mqe->un.sli4_params);
8200         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8201                                              &mqe->un.sli4_params);
8202         sli4_params->proto_types = mqe->un.sli4_params.word3;
8203         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8204         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8205         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8206         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8207         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8208         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8209         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8210         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8211         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8212         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8213         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8214         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8215         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8216         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8217         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8218         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8219         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8220         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8221         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8222         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8223
8224         /* Make sure that sge_supp_len can be handled by the driver */
8225         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8226                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8227
8228         return rc;
8229 }
8230
8231 /**
8232  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8233  * @phba: Pointer to HBA context object.
8234  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8235  *
8236  * This function is called in the SLI4 code path to read the port's
8237  * sli4 capabilities.
8238  *
8239  * This function may be be called from any context that can block-wait
8240  * for the completion.  The expectation is that this routine is called
8241  * typically from probe_one or from the online routine.
8242  **/
8243 int
8244 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8245 {
8246         int rc;
8247         struct lpfc_mqe *mqe = &mboxq->u.mqe;
8248         struct lpfc_pc_sli4_params *sli4_params;
8249         uint32_t mbox_tmo;
8250         int length;
8251         struct lpfc_sli4_parameters *mbx_sli4_parameters;
8252
8253         /*
8254          * By default, the driver assumes the SLI4 port requires RPI
8255          * header postings.  The SLI4_PARAM response will correct this
8256          * assumption.
8257          */
8258         phba->sli4_hba.rpi_hdrs_in_use = 1;
8259
8260         /* Read the port's SLI4 Config Parameters */
8261         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8262                   sizeof(struct lpfc_sli4_cfg_mhdr));
8263         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8264                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8265                          length, LPFC_SLI4_MBX_EMBED);
8266         if (!phba->sli4_hba.intr_enable)
8267                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8268         else {
8269                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8270                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8271         }
8272         if (unlikely(rc))
8273                 return rc;
8274         sli4_params = &phba->sli4_hba.pc_sli4_params;
8275         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8276         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8277         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8278         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8279         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8280                                              mbx_sli4_parameters);
8281         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8282                                              mbx_sli4_parameters);
8283         if (bf_get(cfg_phwq, mbx_sli4_parameters))
8284                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8285         else
8286                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8287         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8288         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8289         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8290         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8291         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8292         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8293         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8294                                             mbx_sli4_parameters);
8295         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8296                                            mbx_sli4_parameters);
8297         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8298         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8299
8300         /* Make sure that sge_supp_len can be handled by the driver */
8301         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8302                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8303
8304         return 0;
8305 }
8306
8307 /**
8308  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8309  * @pdev: pointer to PCI device
8310  * @pid: pointer to PCI device identifier
8311  *
8312  * This routine is to be called to attach a device with SLI-3 interface spec
8313  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8314  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8315  * information of the device and driver to see if the driver state that it can
8316  * support this kind of device. If the match is successful, the driver core
8317  * invokes this routine. If this routine determines it can claim the HBA, it
8318  * does all the initialization that it needs to do to handle the HBA properly.
8319  *
8320  * Return code
8321  *      0 - driver can claim the device
8322  *      negative value - driver can not claim the device
8323  **/
8324 static int __devinit
8325 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8326 {
8327         struct lpfc_hba   *phba;
8328         struct lpfc_vport *vport = NULL;
8329         struct Scsi_Host  *shost = NULL;
8330         int error;
8331         uint32_t cfg_mode, intr_mode;
8332
8333         /* Allocate memory for HBA structure */
8334         phba = lpfc_hba_alloc(pdev);
8335         if (!phba)
8336                 return -ENOMEM;
8337
8338         /* Perform generic PCI device enabling operation */
8339         error = lpfc_enable_pci_dev(phba);
8340         if (error)
8341                 goto out_free_phba;
8342
8343         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8344         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8345         if (error)
8346                 goto out_disable_pci_dev;
8347
8348         /* Set up SLI-3 specific device PCI memory space */
8349         error = lpfc_sli_pci_mem_setup(phba);
8350         if (error) {
8351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8352                                 "1402 Failed to set up pci memory space.\n");
8353                 goto out_disable_pci_dev;
8354         }
8355
8356         /* Set up phase-1 common device driver resources */
8357         error = lpfc_setup_driver_resource_phase1(phba);
8358         if (error) {
8359                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8360                                 "1403 Failed to set up driver resource.\n");
8361                 goto out_unset_pci_mem_s3;
8362         }
8363
8364         /* Set up SLI-3 specific device driver resources */
8365         error = lpfc_sli_driver_resource_setup(phba);
8366         if (error) {
8367                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8368                                 "1404 Failed to set up driver resource.\n");
8369                 goto out_unset_pci_mem_s3;
8370         }
8371
8372         /* Initialize and populate the iocb list per host */
8373         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8374         if (error) {
8375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8376                                 "1405 Failed to initialize iocb list.\n");
8377                 goto out_unset_driver_resource_s3;
8378         }
8379
8380         /* Set up common device driver resources */
8381         error = lpfc_setup_driver_resource_phase2(phba);
8382         if (error) {
8383                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8384                                 "1406 Failed to set up driver resource.\n");
8385                 goto out_free_iocb_list;
8386         }
8387
8388         /* Get the default values for Model Name and Description */
8389         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8390
8391         /* Create SCSI host to the physical port */
8392         error = lpfc_create_shost(phba);
8393         if (error) {
8394                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8395                                 "1407 Failed to create scsi host.\n");
8396                 goto out_unset_driver_resource;
8397         }
8398
8399         /* Configure sysfs attributes */
8400         vport = phba->pport;
8401         error = lpfc_alloc_sysfs_attr(vport);
8402         if (error) {
8403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8404                                 "1476 Failed to allocate sysfs attr\n");
8405                 goto out_destroy_shost;
8406         }
8407
8408         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8409         /* Now, trying to enable interrupt and bring up the device */
8410         cfg_mode = phba->cfg_use_msi;
8411         while (true) {
8412                 /* Put device to a known state before enabling interrupt */
8413                 lpfc_stop_port(phba);
8414                 /* Configure and enable interrupt */
8415                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8416                 if (intr_mode == LPFC_INTR_ERROR) {
8417                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8418                                         "0431 Failed to enable interrupt.\n");
8419                         error = -ENODEV;
8420                         goto out_free_sysfs_attr;
8421                 }
8422                 /* SLI-3 HBA setup */
8423                 if (lpfc_sli_hba_setup(phba)) {
8424                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8425                                         "1477 Failed to set up hba\n");
8426                         error = -ENODEV;
8427                         goto out_remove_device;
8428                 }
8429
8430                 /* Wait 50ms for the interrupts of previous mailbox commands */
8431                 msleep(50);
8432                 /* Check active interrupts on message signaled interrupts */
8433                 if (intr_mode == 0 ||
8434                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8435                         /* Log the current active interrupt mode */
8436                         phba->intr_mode = intr_mode;
8437                         lpfc_log_intr_mode(phba, intr_mode);
8438                         break;
8439                 } else {
8440                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8441                                         "0447 Configure interrupt mode (%d) "
8442                                         "failed active interrupt test.\n",
8443                                         intr_mode);
8444                         /* Disable the current interrupt mode */
8445                         lpfc_sli_disable_intr(phba);
8446                         /* Try next level of interrupt mode */
8447                         cfg_mode = --intr_mode;
8448                 }
8449         }
8450
8451         /* Perform post initialization setup */
8452         lpfc_post_init_setup(phba);
8453
8454         /* Check if there are static vports to be created. */
8455         lpfc_create_static_vport(phba);
8456
8457         return 0;
8458
8459 out_remove_device:
8460         lpfc_unset_hba(phba);
8461 out_free_sysfs_attr:
8462         lpfc_free_sysfs_attr(vport);
8463 out_destroy_shost:
8464         lpfc_destroy_shost(phba);
8465 out_unset_driver_resource:
8466         lpfc_unset_driver_resource_phase2(phba);
8467 out_free_iocb_list:
8468         lpfc_free_iocb_list(phba);
8469 out_unset_driver_resource_s3:
8470         lpfc_sli_driver_resource_unset(phba);
8471 out_unset_pci_mem_s3:
8472         lpfc_sli_pci_mem_unset(phba);
8473 out_disable_pci_dev:
8474         lpfc_disable_pci_dev(phba);
8475         if (shost)
8476                 scsi_host_put(shost);
8477 out_free_phba:
8478         lpfc_hba_free(phba);
8479         return error;
8480 }
8481
8482 /**
8483  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8484  * @pdev: pointer to PCI device
8485  *
8486  * This routine is to be called to disattach a device with SLI-3 interface
8487  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8488  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8489  * device to be removed from the PCI subsystem properly.
8490  **/
8491 static void __devexit
8492 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8493 {
8494         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8495         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8496         struct lpfc_vport **vports;
8497         struct lpfc_hba   *phba = vport->phba;
8498         int i;
8499         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8500
8501         spin_lock_irq(&phba->hbalock);
8502         vport->load_flag |= FC_UNLOADING;
8503         spin_unlock_irq(&phba->hbalock);
8504
8505         lpfc_free_sysfs_attr(vport);
8506
8507         /* Release all the vports against this physical port */
8508         vports = lpfc_create_vport_work_array(phba);
8509         if (vports != NULL)
8510                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8511                         fc_vport_terminate(vports[i]->fc_vport);
8512         lpfc_destroy_vport_work_array(phba, vports);
8513
8514         /* Remove FC host and then SCSI host with the physical port */
8515         fc_remove_host(shost);
8516         scsi_remove_host(shost);
8517         lpfc_cleanup(vport);
8518
8519         /*
8520          * Bring down the SLI Layer. This step disable all interrupts,
8521          * clears the rings, discards all mailbox commands, and resets
8522          * the HBA.
8523          */
8524
8525         /* HBA interrupt will be disabled after this call */
8526         lpfc_sli_hba_down(phba);
8527         /* Stop kthread signal shall trigger work_done one more time */
8528         kthread_stop(phba->worker_thread);
8529         /* Final cleanup of txcmplq and reset the HBA */
8530         lpfc_sli_brdrestart(phba);
8531
8532         lpfc_stop_hba_timers(phba);
8533         spin_lock_irq(&phba->hbalock);
8534         list_del_init(&vport->listentry);
8535         spin_unlock_irq(&phba->hbalock);
8536
8537         lpfc_debugfs_terminate(vport);
8538
8539         /* Disable SR-IOV if enabled */
8540         if (phba->cfg_sriov_nr_virtfn)
8541                 pci_disable_sriov(pdev);
8542
8543         /* Disable interrupt */
8544         lpfc_sli_disable_intr(phba);
8545
8546         pci_set_drvdata(pdev, NULL);
8547         scsi_host_put(shost);
8548
8549         /*
8550          * Call scsi_free before mem_free since scsi bufs are released to their
8551          * corresponding pools here.
8552          */
8553         lpfc_scsi_free(phba);
8554         lpfc_mem_free_all(phba);
8555
8556         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8557                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8558
8559         /* Free resources associated with SLI2 interface */
8560         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8561                           phba->slim2p.virt, phba->slim2p.phys);
8562
8563         /* unmap adapter SLIM and Control Registers */
8564         iounmap(phba->ctrl_regs_memmap_p);
8565         iounmap(phba->slim_memmap_p);
8566
8567         lpfc_hba_free(phba);
8568
8569         pci_release_selected_regions(pdev, bars);
8570         pci_disable_device(pdev);
8571 }
8572
8573 /**
8574  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8575  * @pdev: pointer to PCI device
8576  * @msg: power management message
8577  *
8578  * This routine is to be called from the kernel's PCI subsystem to support
8579  * system Power Management (PM) to device with SLI-3 interface spec. When
8580  * PM invokes this method, it quiesces the device by stopping the driver's
8581  * worker thread for the device, turning off device's interrupt and DMA,
8582  * and bring the device offline. Note that as the driver implements the
8583  * minimum PM requirements to a power-aware driver's PM support for the
8584  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8585  * to the suspend() method call will be treated as SUSPEND and the driver will
8586  * fully reinitialize its device during resume() method call, the driver will
8587  * set device to PCI_D3hot state in PCI config space instead of setting it
8588  * according to the @msg provided by the PM.
8589  *
8590  * Return code
8591  *      0 - driver suspended the device
8592  *      Error otherwise
8593  **/
8594 static int
8595 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8596 {
8597         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8598         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8599
8600         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8601                         "0473 PCI device Power Management suspend.\n");
8602
8603         /* Bring down the device */
8604         lpfc_offline_prep(phba);
8605         lpfc_offline(phba);
8606         kthread_stop(phba->worker_thread);
8607
8608         /* Disable interrupt from device */
8609         lpfc_sli_disable_intr(phba);
8610
8611         /* Save device state to PCI config space */
8612         pci_save_state(pdev);
8613         pci_set_power_state(pdev, PCI_D3hot);
8614
8615         return 0;
8616 }
8617
8618 /**
8619  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8620  * @pdev: pointer to PCI device
8621  *
8622  * This routine is to be called from the kernel's PCI subsystem to support
8623  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8624  * invokes this method, it restores the device's PCI config space state and
8625  * fully reinitializes the device and brings it online. Note that as the
8626  * driver implements the minimum PM requirements to a power-aware driver's
8627  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8628  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8629  * driver will fully reinitialize its device during resume() method call,
8630  * the device will be set to PCI_D0 directly in PCI config space before
8631  * restoring the state.
8632  *
8633  * Return code
8634  *      0 - driver suspended the device
8635  *      Error otherwise
8636  **/
8637 static int
8638 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8639 {
8640         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8641         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8642         uint32_t intr_mode;
8643         int error;
8644
8645         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8646                         "0452 PCI device Power Management resume.\n");
8647
8648         /* Restore device state from PCI config space */
8649         pci_set_power_state(pdev, PCI_D0);
8650         pci_restore_state(pdev);
8651
8652         /*
8653          * As the new kernel behavior of pci_restore_state() API call clears
8654          * device saved_state flag, need to save the restored state again.
8655          */
8656         pci_save_state(pdev);
8657
8658         if (pdev->is_busmaster)
8659                 pci_set_master(pdev);
8660
8661         /* Startup the kernel thread for this host adapter. */
8662         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8663                                         "lpfc_worker_%d", phba->brd_no);
8664         if (IS_ERR(phba->worker_thread)) {
8665                 error = PTR_ERR(phba->worker_thread);
8666                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8667                                 "0434 PM resume failed to start worker "
8668                                 "thread: error=x%x.\n", error);
8669                 return error;
8670         }
8671
8672         /* Configure and enable interrupt */
8673         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8674         if (intr_mode == LPFC_INTR_ERROR) {
8675                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8676                                 "0430 PM resume Failed to enable interrupt\n");
8677                 return -EIO;
8678         } else
8679                 phba->intr_mode = intr_mode;
8680
8681         /* Restart HBA and bring it online */
8682         lpfc_sli_brdrestart(phba);
8683         lpfc_online(phba);
8684
8685         /* Log the current active interrupt mode */
8686         lpfc_log_intr_mode(phba, phba->intr_mode);
8687
8688         return 0;
8689 }
8690
8691 /**
8692  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8693  * @phba: pointer to lpfc hba data structure.
8694  *
8695  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8696  * aborts all the outstanding SCSI I/Os to the pci device.
8697  **/
8698 static void
8699 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8700 {
8701         struct lpfc_sli *psli = &phba->sli;
8702         struct lpfc_sli_ring  *pring;
8703
8704         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8705                         "2723 PCI channel I/O abort preparing for recovery\n");
8706
8707         /*
8708          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8709          * and let the SCSI mid-layer to retry them to recover.
8710          */
8711         pring = &psli->ring[psli->fcp_ring];
8712         lpfc_sli_abort_iocb_ring(phba, pring);
8713 }
8714
8715 /**
8716  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8717  * @phba: pointer to lpfc hba data structure.
8718  *
8719  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8720  * disables the device interrupt and pci device, and aborts the internal FCP
8721  * pending I/Os.
8722  **/
8723 static void
8724 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8725 {
8726         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8727                         "2710 PCI channel disable preparing for reset\n");
8728
8729         /* Block any management I/Os to the device */
8730         lpfc_block_mgmt_io(phba);
8731
8732         /* Block all SCSI devices' I/Os on the host */
8733         lpfc_scsi_dev_block(phba);
8734
8735         /* stop all timers */
8736         lpfc_stop_hba_timers(phba);
8737
8738         /* Disable interrupt and pci device */
8739         lpfc_sli_disable_intr(phba);
8740         pci_disable_device(phba->pcidev);
8741
8742         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8743         lpfc_sli_flush_fcp_rings(phba);
8744 }
8745
8746 /**
8747  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8748  * @phba: pointer to lpfc hba data structure.
8749  *
8750  * This routine is called to prepare the SLI3 device for PCI slot permanently
8751  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8752  * pending I/Os.
8753  **/
8754 static void
8755 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8756 {
8757         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8758                         "2711 PCI channel permanent disable for failure\n");
8759         /* Block all SCSI devices' I/Os on the host */
8760         lpfc_scsi_dev_block(phba);
8761
8762         /* stop all timers */
8763         lpfc_stop_hba_timers(phba);
8764
8765         /* Clean up all driver's outstanding SCSI I/Os */
8766         lpfc_sli_flush_fcp_rings(phba);
8767 }
8768
8769 /**
8770  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8771  * @pdev: pointer to PCI device.
8772  * @state: the current PCI connection state.
8773  *
8774  * This routine is called from the PCI subsystem for I/O error handling to
8775  * device with SLI-3 interface spec. This function is called by the PCI
8776  * subsystem after a PCI bus error affecting this device has been detected.
8777  * When this function is invoked, it will need to stop all the I/Os and
8778  * interrupt(s) to the device. Once that is done, it will return
8779  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8780  * as desired.
8781  *
8782  * Return codes
8783  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8784  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8785  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8786  **/
8787 static pci_ers_result_t
8788 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8789 {
8790         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8791         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8792
8793         switch (state) {
8794         case pci_channel_io_normal:
8795                 /* Non-fatal error, prepare for recovery */
8796                 lpfc_sli_prep_dev_for_recover(phba);
8797                 return PCI_ERS_RESULT_CAN_RECOVER;
8798         case pci_channel_io_frozen:
8799                 /* Fatal error, prepare for slot reset */
8800                 lpfc_sli_prep_dev_for_reset(phba);
8801                 return PCI_ERS_RESULT_NEED_RESET;
8802         case pci_channel_io_perm_failure:
8803                 /* Permanent failure, prepare for device down */
8804                 lpfc_sli_prep_dev_for_perm_failure(phba);
8805                 return PCI_ERS_RESULT_DISCONNECT;
8806         default:
8807                 /* Unknown state, prepare and request slot reset */
8808                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8809                                 "0472 Unknown PCI error state: x%x\n", state);
8810                 lpfc_sli_prep_dev_for_reset(phba);
8811                 return PCI_ERS_RESULT_NEED_RESET;
8812         }
8813 }
8814
8815 /**
8816  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8817  * @pdev: pointer to PCI device.
8818  *
8819  * This routine is called from the PCI subsystem for error handling to
8820  * device with SLI-3 interface spec. This is called after PCI bus has been
8821  * reset to restart the PCI card from scratch, as if from a cold-boot.
8822  * During the PCI subsystem error recovery, after driver returns
8823  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8824  * recovery and then call this routine before calling the .resume method
8825  * to recover the device. This function will initialize the HBA device,
8826  * enable the interrupt, but it will just put the HBA to offline state
8827  * without passing any I/O traffic.
8828  *
8829  * Return codes
8830  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8831  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8832  */
8833 static pci_ers_result_t
8834 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8835 {
8836         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8837         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8838         struct lpfc_sli *psli = &phba->sli;
8839         uint32_t intr_mode;
8840
8841         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8842         if (pci_enable_device_mem(pdev)) {
8843                 printk(KERN_ERR "lpfc: Cannot re-enable "
8844                         "PCI device after reset.\n");
8845                 return PCI_ERS_RESULT_DISCONNECT;
8846         }
8847
8848         pci_restore_state(pdev);
8849
8850         /*
8851          * As the new kernel behavior of pci_restore_state() API call clears
8852          * device saved_state flag, need to save the restored state again.
8853          */
8854         pci_save_state(pdev);
8855
8856         if (pdev->is_busmaster)
8857                 pci_set_master(pdev);
8858
8859         spin_lock_irq(&phba->hbalock);
8860         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8861         spin_unlock_irq(&phba->hbalock);
8862
8863         /* Configure and enable interrupt */
8864         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8865         if (intr_mode == LPFC_INTR_ERROR) {
8866                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8867                                 "0427 Cannot re-enable interrupt after "
8868                                 "slot reset.\n");
8869                 return PCI_ERS_RESULT_DISCONNECT;
8870         } else
8871                 phba->intr_mode = intr_mode;
8872
8873         /* Take device offline, it will perform cleanup */
8874         lpfc_offline_prep(phba);
8875         lpfc_offline(phba);
8876         lpfc_sli_brdrestart(phba);
8877
8878         /* Log the current active interrupt mode */
8879         lpfc_log_intr_mode(phba, phba->intr_mode);
8880
8881         return PCI_ERS_RESULT_RECOVERED;
8882 }
8883
8884 /**
8885  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8886  * @pdev: pointer to PCI device
8887  *
8888  * This routine is called from the PCI subsystem for error handling to device
8889  * with SLI-3 interface spec. It is called when kernel error recovery tells
8890  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8891  * error recovery. After this call, traffic can start to flow from this device
8892  * again.
8893  */
8894 static void
8895 lpfc_io_resume_s3(struct pci_dev *pdev)
8896 {
8897         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8898         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8899
8900         /* Bring device online, it will be no-op for non-fatal error resume */
8901         lpfc_online(phba);
8902
8903         /* Clean up Advanced Error Reporting (AER) if needed */
8904         if (phba->hba_flag & HBA_AER_ENABLED)
8905                 pci_cleanup_aer_uncorrect_error_status(pdev);
8906 }
8907
8908 /**
8909  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8910  * @phba: pointer to lpfc hba data structure.
8911  *
8912  * returns the number of ELS/CT IOCBs to reserve
8913  **/
8914 int
8915 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8916 {
8917         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8918
8919         if (phba->sli_rev == LPFC_SLI_REV4) {
8920                 if (max_xri <= 100)
8921                         return 10;
8922                 else if (max_xri <= 256)
8923                         return 25;
8924                 else if (max_xri <= 512)
8925                         return 50;
8926                 else if (max_xri <= 1024)
8927                         return 100;
8928                 else
8929                         return 150;
8930         } else
8931                 return 0;
8932 }
8933
8934 /**
8935  * lpfc_write_firmware - attempt to write a firmware image to the port
8936  * @phba: pointer to lpfc hba data structure.
8937  * @fw: pointer to firmware image returned from request_firmware.
8938  *
8939  * returns the number of bytes written if write is successful.
8940  * returns a negative error value if there were errors.
8941  * returns 0 if firmware matches currently active firmware on port.
8942  **/
8943 int
8944 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8945 {
8946         char fwrev[32];
8947         struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8948         struct list_head dma_buffer_list;
8949         int i, rc = 0;
8950         struct lpfc_dmabuf *dmabuf, *next;
8951         uint32_t offset = 0, temp_offset = 0;
8952
8953         INIT_LIST_HEAD(&dma_buffer_list);
8954         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8955             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
8956              LPFC_FILE_TYPE_GROUP) ||
8957             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8958             (be32_to_cpu(image->size) != fw->size)) {
8959                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8960                                 "3022 Invalid FW image found. "
8961                                 "Magic:%x Type:%x ID:%x\n",
8962                                 be32_to_cpu(image->magic_number),
8963                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
8964                                 bf_get_be32(lpfc_grp_hdr_id, image));
8965                 return -EINVAL;
8966         }
8967         lpfc_decode_firmware_rev(phba, fwrev, 1);
8968         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
8969                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8970                                 "3023 Updating Firmware. Current Version:%s "
8971                                 "New Version:%s\n",
8972                                 fwrev, image->revision);
8973                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8974                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8975                                          GFP_KERNEL);
8976                         if (!dmabuf) {
8977                                 rc = -ENOMEM;
8978                                 goto out;
8979                         }
8980                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8981                                                           SLI4_PAGE_SIZE,
8982                                                           &dmabuf->phys,
8983                                                           GFP_KERNEL);
8984                         if (!dmabuf->virt) {
8985                                 kfree(dmabuf);
8986                                 rc = -ENOMEM;
8987                                 goto out;
8988                         }
8989                         list_add_tail(&dmabuf->list, &dma_buffer_list);
8990                 }
8991                 while (offset < fw->size) {
8992                         temp_offset = offset;
8993                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8994                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
8995                                         memcpy(dmabuf->virt,
8996                                                fw->data + temp_offset,
8997                                                fw->size - temp_offset);
8998                                         temp_offset = fw->size;
8999                                         break;
9000                                 }
9001                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9002                                        SLI4_PAGE_SIZE);
9003                                 temp_offset += SLI4_PAGE_SIZE;
9004                         }
9005                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9006                                     (fw->size - offset), &offset);
9007                         if (rc) {
9008                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9009                                                 "3024 Firmware update failed. "
9010                                                 "%d\n", rc);
9011                                 goto out;
9012                         }
9013                 }
9014                 rc = offset;
9015         }
9016 out:
9017         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9018                 list_del(&dmabuf->list);
9019                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9020                                   dmabuf->virt, dmabuf->phys);
9021                 kfree(dmabuf);
9022         }
9023         return rc;
9024 }
9025
9026 /**
9027  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9028  * @pdev: pointer to PCI device
9029  * @pid: pointer to PCI device identifier
9030  *
9031  * This routine is called from the kernel's PCI subsystem to device with
9032  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9033  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9034  * information of the device and driver to see if the driver state that it
9035  * can support this kind of device. If the match is successful, the driver
9036  * core invokes this routine. If this routine determines it can claim the HBA,
9037  * it does all the initialization that it needs to do to handle the HBA
9038  * properly.
9039  *
9040  * Return code
9041  *      0 - driver can claim the device
9042  *      negative value - driver can not claim the device
9043  **/
9044 static int __devinit
9045 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9046 {
9047         struct lpfc_hba   *phba;
9048         struct lpfc_vport *vport = NULL;
9049         struct Scsi_Host  *shost = NULL;
9050         int error;
9051         uint32_t cfg_mode, intr_mode;
9052         int mcnt;
9053         int adjusted_fcp_eq_count;
9054         const struct firmware *fw;
9055         uint8_t file_name[16];
9056
9057         /* Allocate memory for HBA structure */
9058         phba = lpfc_hba_alloc(pdev);
9059         if (!phba)
9060                 return -ENOMEM;
9061
9062         /* Perform generic PCI device enabling operation */
9063         error = lpfc_enable_pci_dev(phba);
9064         if (error)
9065                 goto out_free_phba;
9066
9067         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9068         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9069         if (error)
9070                 goto out_disable_pci_dev;
9071
9072         /* Set up SLI-4 specific device PCI memory space */
9073         error = lpfc_sli4_pci_mem_setup(phba);
9074         if (error) {
9075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9076                                 "1410 Failed to set up pci memory space.\n");
9077                 goto out_disable_pci_dev;
9078         }
9079
9080         /* Set up phase-1 common device driver resources */
9081         error = lpfc_setup_driver_resource_phase1(phba);
9082         if (error) {
9083                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9084                                 "1411 Failed to set up driver resource.\n");
9085                 goto out_unset_pci_mem_s4;
9086         }
9087
9088         /* Set up SLI-4 Specific device driver resources */
9089         error = lpfc_sli4_driver_resource_setup(phba);
9090         if (error) {
9091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9092                                 "1412 Failed to set up driver resource.\n");
9093                 goto out_unset_pci_mem_s4;
9094         }
9095
9096         /* Initialize and populate the iocb list per host */
9097
9098         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9099                         "2821 initialize iocb list %d.\n",
9100                         phba->cfg_iocb_cnt*1024);
9101         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9102
9103         if (error) {
9104                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9105                                 "1413 Failed to initialize iocb list.\n");
9106                 goto out_unset_driver_resource_s4;
9107         }
9108
9109         INIT_LIST_HEAD(&phba->active_rrq_list);
9110         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9111
9112         /* Set up common device driver resources */
9113         error = lpfc_setup_driver_resource_phase2(phba);
9114         if (error) {
9115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9116                                 "1414 Failed to set up driver resource.\n");
9117                 goto out_free_iocb_list;
9118         }
9119
9120         /* Get the default values for Model Name and Description */
9121         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9122
9123         /* Create SCSI host to the physical port */
9124         error = lpfc_create_shost(phba);
9125         if (error) {
9126                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9127                                 "1415 Failed to create scsi host.\n");
9128                 goto out_unset_driver_resource;
9129         }
9130
9131         /* Configure sysfs attributes */
9132         vport = phba->pport;
9133         error = lpfc_alloc_sysfs_attr(vport);
9134         if (error) {
9135                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9136                                 "1416 Failed to allocate sysfs attr\n");
9137                 goto out_destroy_shost;
9138         }
9139
9140         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9141         /* Now, trying to enable interrupt and bring up the device */
9142         cfg_mode = phba->cfg_use_msi;
9143         while (true) {
9144                 /* Put device to a known state before enabling interrupt */
9145                 lpfc_stop_port(phba);
9146                 /* Configure and enable interrupt */
9147                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9148                 if (intr_mode == LPFC_INTR_ERROR) {
9149                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9150                                         "0426 Failed to enable interrupt.\n");
9151                         error = -ENODEV;
9152                         goto out_free_sysfs_attr;
9153                 }
9154                 /* Default to single EQ for non-MSI-X */
9155                 if (phba->intr_type != MSIX)
9156                         adjusted_fcp_eq_count = 0;
9157                 else if (phba->sli4_hba.msix_vec_nr <
9158                                         phba->cfg_fcp_eq_count + 1)
9159                         adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9160                 else
9161                         adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9162                 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9163                 /* Set up SLI-4 HBA */
9164                 if (lpfc_sli4_hba_setup(phba)) {
9165                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9166                                         "1421 Failed to set up hba\n");
9167                         error = -ENODEV;
9168                         goto out_disable_intr;
9169                 }
9170
9171                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9172                 if (intr_mode != 0)
9173                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9174                                                             LPFC_ACT_INTR_CNT);
9175
9176                 /* Check active interrupts received only for MSI/MSI-X */
9177                 if (intr_mode == 0 ||
9178                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9179                         /* Log the current active interrupt mode */
9180                         phba->intr_mode = intr_mode;
9181                         lpfc_log_intr_mode(phba, intr_mode);
9182                         break;
9183                 }
9184                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9185                                 "0451 Configure interrupt mode (%d) "
9186                                 "failed active interrupt test.\n",
9187                                 intr_mode);
9188                 /* Unset the previous SLI-4 HBA setup. */
9189                 /*
9190                  * TODO:  Is this operation compatible with IF TYPE 2
9191                  * devices?  All port state is deleted and cleared.
9192                  */
9193                 lpfc_sli4_unset_hba(phba);
9194                 /* Try next level of interrupt mode */
9195                 cfg_mode = --intr_mode;
9196         }
9197
9198         /* Perform post initialization setup */
9199         lpfc_post_init_setup(phba);
9200
9201         /* check for firmware upgrade or downgrade */
9202         snprintf(file_name, 16, "%s.grp", phba->ModelName);
9203         error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9204         if (!error) {
9205                 lpfc_write_firmware(phba, fw);
9206                 release_firmware(fw);
9207         }
9208
9209         /* Check if there are static vports to be created. */
9210         lpfc_create_static_vport(phba);
9211         return 0;
9212
9213 out_disable_intr:
9214         lpfc_sli4_disable_intr(phba);
9215 out_free_sysfs_attr:
9216         lpfc_free_sysfs_attr(vport);
9217 out_destroy_shost:
9218         lpfc_destroy_shost(phba);
9219 out_unset_driver_resource:
9220         lpfc_unset_driver_resource_phase2(phba);
9221 out_free_iocb_list:
9222         lpfc_free_iocb_list(phba);
9223 out_unset_driver_resource_s4:
9224         lpfc_sli4_driver_resource_unset(phba);
9225 out_unset_pci_mem_s4:
9226         lpfc_sli4_pci_mem_unset(phba);
9227 out_disable_pci_dev:
9228         lpfc_disable_pci_dev(phba);
9229         if (shost)
9230                 scsi_host_put(shost);
9231 out_free_phba:
9232         lpfc_hba_free(phba);
9233         return error;
9234 }
9235
9236 /**
9237  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9238  * @pdev: pointer to PCI device
9239  *
9240  * This routine is called from the kernel's PCI subsystem to device with
9241  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9242  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9243  * device to be removed from the PCI subsystem properly.
9244  **/
9245 static void __devexit
9246 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9247 {
9248         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9249         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9250         struct lpfc_vport **vports;
9251         struct lpfc_hba *phba = vport->phba;
9252         int i;
9253
9254         /* Mark the device unloading flag */
9255         spin_lock_irq(&phba->hbalock);
9256         vport->load_flag |= FC_UNLOADING;
9257         spin_unlock_irq(&phba->hbalock);
9258
9259         /* Free the HBA sysfs attributes */
9260         lpfc_free_sysfs_attr(vport);
9261
9262         /* Release all the vports against this physical port */
9263         vports = lpfc_create_vport_work_array(phba);
9264         if (vports != NULL)
9265                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9266                         fc_vport_terminate(vports[i]->fc_vport);
9267         lpfc_destroy_vport_work_array(phba, vports);
9268
9269         /* Remove FC host and then SCSI host with the physical port */
9270         fc_remove_host(shost);
9271         scsi_remove_host(shost);
9272
9273         /* Perform cleanup on the physical port */
9274         lpfc_cleanup(vport);
9275
9276         /*
9277          * Bring down the SLI Layer. This step disables all interrupts,
9278          * clears the rings, discards all mailbox commands, and resets
9279          * the HBA FCoE function.
9280          */
9281         lpfc_debugfs_terminate(vport);
9282         lpfc_sli4_hba_unset(phba);
9283
9284         spin_lock_irq(&phba->hbalock);
9285         list_del_init(&vport->listentry);
9286         spin_unlock_irq(&phba->hbalock);
9287
9288         /* Perform scsi free before driver resource_unset since scsi
9289          * buffers are released to their corresponding pools here.
9290          */
9291         lpfc_scsi_free(phba);
9292         lpfc_sli4_driver_resource_unset(phba);
9293
9294         /* Unmap adapter Control and Doorbell registers */
9295         lpfc_sli4_pci_mem_unset(phba);
9296
9297         /* Release PCI resources and disable device's PCI function */
9298         scsi_host_put(shost);
9299         lpfc_disable_pci_dev(phba);
9300
9301         /* Finally, free the driver's device data structure */
9302         lpfc_hba_free(phba);
9303
9304         return;
9305 }
9306
9307 /**
9308  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9309  * @pdev: pointer to PCI device
9310  * @msg: power management message
9311  *
9312  * This routine is called from the kernel's PCI subsystem to support system
9313  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9314  * this method, it quiesces the device by stopping the driver's worker
9315  * thread for the device, turning off device's interrupt and DMA, and bring
9316  * the device offline. Note that as the driver implements the minimum PM
9317  * requirements to a power-aware driver's PM support for suspend/resume -- all
9318  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9319  * method call will be treated as SUSPEND and the driver will fully
9320  * reinitialize its device during resume() method call, the driver will set
9321  * device to PCI_D3hot state in PCI config space instead of setting it
9322  * according to the @msg provided by the PM.
9323  *
9324  * Return code
9325  *      0 - driver suspended the device
9326  *      Error otherwise
9327  **/
9328 static int
9329 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9330 {
9331         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9332         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9333
9334         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9335                         "2843 PCI device Power Management suspend.\n");
9336
9337         /* Bring down the device */
9338         lpfc_offline_prep(phba);
9339         lpfc_offline(phba);
9340         kthread_stop(phba->worker_thread);
9341
9342         /* Disable interrupt from device */
9343         lpfc_sli4_disable_intr(phba);
9344         lpfc_sli4_queue_destroy(phba);
9345
9346         /* Save device state to PCI config space */
9347         pci_save_state(pdev);
9348         pci_set_power_state(pdev, PCI_D3hot);
9349
9350         return 0;
9351 }
9352
9353 /**
9354  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9355  * @pdev: pointer to PCI device
9356  *
9357  * This routine is called from the kernel's PCI subsystem to support system
9358  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9359  * this method, it restores the device's PCI config space state and fully
9360  * reinitializes the device and brings it online. Note that as the driver
9361  * implements the minimum PM requirements to a power-aware driver's PM for
9362  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9363  * to the suspend() method call will be treated as SUSPEND and the driver
9364  * will fully reinitialize its device during resume() method call, the device
9365  * will be set to PCI_D0 directly in PCI config space before restoring the
9366  * state.
9367  *
9368  * Return code
9369  *      0 - driver suspended the device
9370  *      Error otherwise
9371  **/
9372 static int
9373 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9374 {
9375         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9376         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9377         uint32_t intr_mode;
9378         int error;
9379
9380         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9381                         "0292 PCI device Power Management resume.\n");
9382
9383         /* Restore device state from PCI config space */
9384         pci_set_power_state(pdev, PCI_D0);
9385         pci_restore_state(pdev);
9386
9387         /*
9388          * As the new kernel behavior of pci_restore_state() API call clears
9389          * device saved_state flag, need to save the restored state again.
9390          */
9391         pci_save_state(pdev);
9392
9393         if (pdev->is_busmaster)
9394                 pci_set_master(pdev);
9395
9396          /* Startup the kernel thread for this host adapter. */
9397         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9398                                         "lpfc_worker_%d", phba->brd_no);
9399         if (IS_ERR(phba->worker_thread)) {
9400                 error = PTR_ERR(phba->worker_thread);
9401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9402                                 "0293 PM resume failed to start worker "
9403                                 "thread: error=x%x.\n", error);
9404                 return error;
9405         }
9406
9407         /* Configure and enable interrupt */
9408         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9409         if (intr_mode == LPFC_INTR_ERROR) {
9410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9411                                 "0294 PM resume Failed to enable interrupt\n");
9412                 return -EIO;
9413         } else
9414                 phba->intr_mode = intr_mode;
9415
9416         /* Restart HBA and bring it online */
9417         lpfc_sli_brdrestart(phba);
9418         lpfc_online(phba);
9419
9420         /* Log the current active interrupt mode */
9421         lpfc_log_intr_mode(phba, phba->intr_mode);
9422
9423         return 0;
9424 }
9425
9426 /**
9427  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9428  * @phba: pointer to lpfc hba data structure.
9429  *
9430  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9431  * aborts all the outstanding SCSI I/Os to the pci device.
9432  **/
9433 static void
9434 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9435 {
9436         struct lpfc_sli *psli = &phba->sli;
9437         struct lpfc_sli_ring  *pring;
9438
9439         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9440                         "2828 PCI channel I/O abort preparing for recovery\n");
9441         /*
9442          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9443          * and let the SCSI mid-layer to retry them to recover.
9444          */
9445         pring = &psli->ring[psli->fcp_ring];
9446         lpfc_sli_abort_iocb_ring(phba, pring);
9447 }
9448
9449 /**
9450  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9451  * @phba: pointer to lpfc hba data structure.
9452  *
9453  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9454  * disables the device interrupt and pci device, and aborts the internal FCP
9455  * pending I/Os.
9456  **/
9457 static void
9458 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9459 {
9460         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9461                         "2826 PCI channel disable preparing for reset\n");
9462
9463         /* Block any management I/Os to the device */
9464         lpfc_block_mgmt_io(phba);
9465
9466         /* Block all SCSI devices' I/Os on the host */
9467         lpfc_scsi_dev_block(phba);
9468
9469         /* stop all timers */
9470         lpfc_stop_hba_timers(phba);
9471
9472         /* Disable interrupt and pci device */
9473         lpfc_sli4_disable_intr(phba);
9474         lpfc_sli4_queue_destroy(phba);
9475         pci_disable_device(phba->pcidev);
9476
9477         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9478         lpfc_sli_flush_fcp_rings(phba);
9479 }
9480
9481 /**
9482  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9483  * @phba: pointer to lpfc hba data structure.
9484  *
9485  * This routine is called to prepare the SLI4 device for PCI slot permanently
9486  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9487  * pending I/Os.
9488  **/
9489 static void
9490 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9491 {
9492         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9493                         "2827 PCI channel permanent disable for failure\n");
9494
9495         /* Block all SCSI devices' I/Os on the host */
9496         lpfc_scsi_dev_block(phba);
9497
9498         /* stop all timers */
9499         lpfc_stop_hba_timers(phba);
9500
9501         /* Clean up all driver's outstanding SCSI I/Os */
9502         lpfc_sli_flush_fcp_rings(phba);
9503 }
9504
9505 /**
9506  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9507  * @pdev: pointer to PCI device.
9508  * @state: the current PCI connection state.
9509  *
9510  * This routine is called from the PCI subsystem for error handling to device
9511  * with SLI-4 interface spec. This function is called by the PCI subsystem
9512  * after a PCI bus error affecting this device has been detected. When this
9513  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9514  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9515  * for the PCI subsystem to perform proper recovery as desired.
9516  *
9517  * Return codes
9518  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9519  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9520  **/
9521 static pci_ers_result_t
9522 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9523 {
9524         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9525         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9526
9527         switch (state) {
9528         case pci_channel_io_normal:
9529                 /* Non-fatal error, prepare for recovery */
9530                 lpfc_sli4_prep_dev_for_recover(phba);
9531                 return PCI_ERS_RESULT_CAN_RECOVER;
9532         case pci_channel_io_frozen:
9533                 /* Fatal error, prepare for slot reset */
9534                 lpfc_sli4_prep_dev_for_reset(phba);
9535                 return PCI_ERS_RESULT_NEED_RESET;
9536         case pci_channel_io_perm_failure:
9537                 /* Permanent failure, prepare for device down */
9538                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9539                 return PCI_ERS_RESULT_DISCONNECT;
9540         default:
9541                 /* Unknown state, prepare and request slot reset */
9542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9543                                 "2825 Unknown PCI error state: x%x\n", state);
9544                 lpfc_sli4_prep_dev_for_reset(phba);
9545                 return PCI_ERS_RESULT_NEED_RESET;
9546         }
9547 }
9548
9549 /**
9550  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9551  * @pdev: pointer to PCI device.
9552  *
9553  * This routine is called from the PCI subsystem for error handling to device
9554  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9555  * restart the PCI card from scratch, as if from a cold-boot. During the
9556  * PCI subsystem error recovery, after the driver returns
9557  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9558  * recovery and then call this routine before calling the .resume method to
9559  * recover the device. This function will initialize the HBA device, enable
9560  * the interrupt, but it will just put the HBA to offline state without
9561  * passing any I/O traffic.
9562  *
9563  * Return codes
9564  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9565  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9566  */
9567 static pci_ers_result_t
9568 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9569 {
9570         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9571         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9572         struct lpfc_sli *psli = &phba->sli;
9573         uint32_t intr_mode;
9574
9575         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9576         if (pci_enable_device_mem(pdev)) {
9577                 printk(KERN_ERR "lpfc: Cannot re-enable "
9578                         "PCI device after reset.\n");
9579                 return PCI_ERS_RESULT_DISCONNECT;
9580         }
9581
9582         pci_restore_state(pdev);
9583
9584         /*
9585          * As the new kernel behavior of pci_restore_state() API call clears
9586          * device saved_state flag, need to save the restored state again.
9587          */
9588         pci_save_state(pdev);
9589
9590         if (pdev->is_busmaster)
9591                 pci_set_master(pdev);
9592
9593         spin_lock_irq(&phba->hbalock);
9594         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9595         spin_unlock_irq(&phba->hbalock);
9596
9597         /* Configure and enable interrupt */
9598         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9599         if (intr_mode == LPFC_INTR_ERROR) {
9600                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9601                                 "2824 Cannot re-enable interrupt after "
9602                                 "slot reset.\n");
9603                 return PCI_ERS_RESULT_DISCONNECT;
9604         } else
9605                 phba->intr_mode = intr_mode;
9606
9607         /* Log the current active interrupt mode */
9608         lpfc_log_intr_mode(phba, phba->intr_mode);
9609
9610         return PCI_ERS_RESULT_RECOVERED;
9611 }
9612
9613 /**
9614  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9615  * @pdev: pointer to PCI device
9616  *
9617  * This routine is called from the PCI subsystem for error handling to device
9618  * with SLI-4 interface spec. It is called when kernel error recovery tells
9619  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9620  * error recovery. After this call, traffic can start to flow from this device
9621  * again.
9622  **/
9623 static void
9624 lpfc_io_resume_s4(struct pci_dev *pdev)
9625 {
9626         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9627         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9628
9629         /*
9630          * In case of slot reset, as function reset is performed through
9631          * mailbox command which needs DMA to be enabled, this operation
9632          * has to be moved to the io resume phase. Taking device offline
9633          * will perform the necessary cleanup.
9634          */
9635         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9636                 /* Perform device reset */
9637                 lpfc_offline_prep(phba);
9638                 lpfc_offline(phba);
9639                 lpfc_sli_brdrestart(phba);
9640                 /* Bring the device back online */
9641                 lpfc_online(phba);
9642         }
9643
9644         /* Clean up Advanced Error Reporting (AER) if needed */
9645         if (phba->hba_flag & HBA_AER_ENABLED)
9646                 pci_cleanup_aer_uncorrect_error_status(pdev);
9647 }
9648
9649 /**
9650  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9651  * @pdev: pointer to PCI device
9652  * @pid: pointer to PCI device identifier
9653  *
9654  * This routine is to be registered to the kernel's PCI subsystem. When an
9655  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9656  * at PCI device-specific information of the device and driver to see if the
9657  * driver state that it can support this kind of device. If the match is
9658  * successful, the driver core invokes this routine. This routine dispatches
9659  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9660  * do all the initialization that it needs to do to handle the HBA device
9661  * properly.
9662  *
9663  * Return code
9664  *      0 - driver can claim the device
9665  *      negative value - driver can not claim the device
9666  **/
9667 static int __devinit
9668 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9669 {
9670         int rc;
9671         struct lpfc_sli_intf intf;
9672
9673         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9674                 return -ENODEV;
9675
9676         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9677             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9678                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9679         else
9680                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9681
9682         return rc;
9683 }
9684
9685 /**
9686  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9687  * @pdev: pointer to PCI device
9688  *
9689  * This routine is to be registered to the kernel's PCI subsystem. When an
9690  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9691  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9692  * remove routine, which will perform all the necessary cleanup for the
9693  * device to be removed from the PCI subsystem properly.
9694  **/
9695 static void __devexit
9696 lpfc_pci_remove_one(struct pci_dev *pdev)
9697 {
9698         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9699         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9700
9701         switch (phba->pci_dev_grp) {
9702         case LPFC_PCI_DEV_LP:
9703                 lpfc_pci_remove_one_s3(pdev);
9704                 break;
9705         case LPFC_PCI_DEV_OC:
9706                 lpfc_pci_remove_one_s4(pdev);
9707                 break;
9708         default:
9709                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9710                                 "1424 Invalid PCI device group: 0x%x\n",
9711                                 phba->pci_dev_grp);
9712                 break;
9713         }
9714         return;
9715 }
9716
9717 /**
9718  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9719  * @pdev: pointer to PCI device
9720  * @msg: power management message
9721  *
9722  * This routine is to be registered to the kernel's PCI subsystem to support
9723  * system Power Management (PM). When PM invokes this method, it dispatches
9724  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9725  * suspend the device.
9726  *
9727  * Return code
9728  *      0 - driver suspended the device
9729  *      Error otherwise
9730  **/
9731 static int
9732 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9733 {
9734         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9735         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9736         int rc = -ENODEV;
9737
9738         switch (phba->pci_dev_grp) {
9739         case LPFC_PCI_DEV_LP:
9740                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9741                 break;
9742         case LPFC_PCI_DEV_OC:
9743                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9744                 break;
9745         default:
9746                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9747                                 "1425 Invalid PCI device group: 0x%x\n",
9748                                 phba->pci_dev_grp);
9749                 break;
9750         }
9751         return rc;
9752 }
9753
9754 /**
9755  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9756  * @pdev: pointer to PCI device
9757  *
9758  * This routine is to be registered to the kernel's PCI subsystem to support
9759  * system Power Management (PM). When PM invokes this method, it dispatches
9760  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9761  * resume the device.
9762  *
9763  * Return code
9764  *      0 - driver suspended the device
9765  *      Error otherwise
9766  **/
9767 static int
9768 lpfc_pci_resume_one(struct pci_dev *pdev)
9769 {
9770         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9771         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9772         int rc = -ENODEV;
9773
9774         switch (phba->pci_dev_grp) {
9775         case LPFC_PCI_DEV_LP:
9776                 rc = lpfc_pci_resume_one_s3(pdev);
9777                 break;
9778         case LPFC_PCI_DEV_OC:
9779                 rc = lpfc_pci_resume_one_s4(pdev);
9780                 break;
9781         default:
9782                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9783                                 "1426 Invalid PCI device group: 0x%x\n",
9784                                 phba->pci_dev_grp);
9785                 break;
9786         }
9787         return rc;
9788 }
9789
9790 /**
9791  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9792  * @pdev: pointer to PCI device.
9793  * @state: the current PCI connection state.
9794  *
9795  * This routine is registered to the PCI subsystem for error handling. This
9796  * function is called by the PCI subsystem after a PCI bus error affecting
9797  * this device has been detected. When this routine is invoked, it dispatches
9798  * the action to the proper SLI-3 or SLI-4 device error detected handling
9799  * routine, which will perform the proper error detected operation.
9800  *
9801  * Return codes
9802  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9803  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9804  **/
9805 static pci_ers_result_t
9806 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9807 {
9808         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9809         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9810         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9811
9812         switch (phba->pci_dev_grp) {
9813         case LPFC_PCI_DEV_LP:
9814                 rc = lpfc_io_error_detected_s3(pdev, state);
9815                 break;
9816         case LPFC_PCI_DEV_OC:
9817                 rc = lpfc_io_error_detected_s4(pdev, state);
9818                 break;
9819         default:
9820                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9821                                 "1427 Invalid PCI device group: 0x%x\n",
9822                                 phba->pci_dev_grp);
9823                 break;
9824         }
9825         return rc;
9826 }
9827
9828 /**
9829  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9830  * @pdev: pointer to PCI device.
9831  *
9832  * This routine is registered to the PCI subsystem for error handling. This
9833  * function is called after PCI bus has been reset to restart the PCI card
9834  * from scratch, as if from a cold-boot. When this routine is invoked, it
9835  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9836  * routine, which will perform the proper device reset.
9837  *
9838  * Return codes
9839  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9840  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9841  **/
9842 static pci_ers_result_t
9843 lpfc_io_slot_reset(struct pci_dev *pdev)
9844 {
9845         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9846         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9847         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9848
9849         switch (phba->pci_dev_grp) {
9850         case LPFC_PCI_DEV_LP:
9851                 rc = lpfc_io_slot_reset_s3(pdev);
9852                 break;
9853         case LPFC_PCI_DEV_OC:
9854                 rc = lpfc_io_slot_reset_s4(pdev);
9855                 break;
9856         default:
9857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9858                                 "1428 Invalid PCI device group: 0x%x\n",
9859                                 phba->pci_dev_grp);
9860                 break;
9861         }
9862         return rc;
9863 }
9864
9865 /**
9866  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9867  * @pdev: pointer to PCI device
9868  *
9869  * This routine is registered to the PCI subsystem for error handling. It
9870  * is called when kernel error recovery tells the lpfc driver that it is
9871  * OK to resume normal PCI operation after PCI bus error recovery. When
9872  * this routine is invoked, it dispatches the action to the proper SLI-3
9873  * or SLI-4 device io_resume routine, which will resume the device operation.
9874  **/
9875 static void
9876 lpfc_io_resume(struct pci_dev *pdev)
9877 {
9878         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9879         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9880
9881         switch (phba->pci_dev_grp) {
9882         case LPFC_PCI_DEV_LP:
9883                 lpfc_io_resume_s3(pdev);
9884                 break;
9885         case LPFC_PCI_DEV_OC:
9886                 lpfc_io_resume_s4(pdev);
9887                 break;
9888         default:
9889                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9890                                 "1429 Invalid PCI device group: 0x%x\n",
9891                                 phba->pci_dev_grp);
9892                 break;
9893         }
9894         return;
9895 }
9896
9897 static struct pci_device_id lpfc_id_table[] = {
9898         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9899                 PCI_ANY_ID, PCI_ANY_ID, },
9900         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9901                 PCI_ANY_ID, PCI_ANY_ID, },
9902         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9903                 PCI_ANY_ID, PCI_ANY_ID, },
9904         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9905                 PCI_ANY_ID, PCI_ANY_ID, },
9906         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9907                 PCI_ANY_ID, PCI_ANY_ID, },
9908         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9909                 PCI_ANY_ID, PCI_ANY_ID, },
9910         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9911                 PCI_ANY_ID, PCI_ANY_ID, },
9912         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9913                 PCI_ANY_ID, PCI_ANY_ID, },
9914         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9915                 PCI_ANY_ID, PCI_ANY_ID, },
9916         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9917                 PCI_ANY_ID, PCI_ANY_ID, },
9918         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9919                 PCI_ANY_ID, PCI_ANY_ID, },
9920         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9921                 PCI_ANY_ID, PCI_ANY_ID, },
9922         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9923                 PCI_ANY_ID, PCI_ANY_ID, },
9924         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9925                 PCI_ANY_ID, PCI_ANY_ID, },
9926         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9927                 PCI_ANY_ID, PCI_ANY_ID, },
9928         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9929                 PCI_ANY_ID, PCI_ANY_ID, },
9930         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9931                 PCI_ANY_ID, PCI_ANY_ID, },
9932         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9933                 PCI_ANY_ID, PCI_ANY_ID, },
9934         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9935                 PCI_ANY_ID, PCI_ANY_ID, },
9936         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9937                 PCI_ANY_ID, PCI_ANY_ID, },
9938         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9939                 PCI_ANY_ID, PCI_ANY_ID, },
9940         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9941                 PCI_ANY_ID, PCI_ANY_ID, },
9942         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9943                 PCI_ANY_ID, PCI_ANY_ID, },
9944         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9945                 PCI_ANY_ID, PCI_ANY_ID, },
9946         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9947                 PCI_ANY_ID, PCI_ANY_ID, },
9948         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9949                 PCI_ANY_ID, PCI_ANY_ID, },
9950         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9951                 PCI_ANY_ID, PCI_ANY_ID, },
9952         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9953                 PCI_ANY_ID, PCI_ANY_ID, },
9954         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9955                 PCI_ANY_ID, PCI_ANY_ID, },
9956         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9957                 PCI_ANY_ID, PCI_ANY_ID, },
9958         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9959                 PCI_ANY_ID, PCI_ANY_ID, },
9960         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9961                 PCI_ANY_ID, PCI_ANY_ID, },
9962         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9963                 PCI_ANY_ID, PCI_ANY_ID, },
9964         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9965                 PCI_ANY_ID, PCI_ANY_ID, },
9966         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9967                 PCI_ANY_ID, PCI_ANY_ID, },
9968         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9969                 PCI_ANY_ID, PCI_ANY_ID, },
9970         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9971                 PCI_ANY_ID, PCI_ANY_ID, },
9972         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9973                 PCI_ANY_ID, PCI_ANY_ID, },
9974         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9975                 PCI_ANY_ID, PCI_ANY_ID, },
9976         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9977                 PCI_ANY_ID, PCI_ANY_ID, },
9978         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9979                 PCI_ANY_ID, PCI_ANY_ID, },
9980         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9981                 PCI_ANY_ID, PCI_ANY_ID, },
9982         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9983                 PCI_ANY_ID, PCI_ANY_ID, },
9984         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9985                 PCI_ANY_ID, PCI_ANY_ID, },
9986         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9987                 PCI_ANY_ID, PCI_ANY_ID, },
9988         { 0 }
9989 };
9990
9991 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9992
9993 static struct pci_error_handlers lpfc_err_handler = {
9994         .error_detected = lpfc_io_error_detected,
9995         .slot_reset = lpfc_io_slot_reset,
9996         .resume = lpfc_io_resume,
9997 };
9998
9999 static struct pci_driver lpfc_driver = {
10000         .name           = LPFC_DRIVER_NAME,
10001         .id_table       = lpfc_id_table,
10002         .probe          = lpfc_pci_probe_one,
10003         .remove         = __devexit_p(lpfc_pci_remove_one),
10004         .suspend        = lpfc_pci_suspend_one,
10005         .resume         = lpfc_pci_resume_one,
10006         .err_handler    = &lpfc_err_handler,
10007 };
10008
10009 /**
10010  * lpfc_init - lpfc module initialization routine
10011  *
10012  * This routine is to be invoked when the lpfc module is loaded into the
10013  * kernel. The special kernel macro module_init() is used to indicate the
10014  * role of this routine to the kernel as lpfc module entry point.
10015  *
10016  * Return codes
10017  *   0 - successful
10018  *   -ENOMEM - FC attach transport failed
10019  *   all others - failed
10020  */
10021 static int __init
10022 lpfc_init(void)
10023 {
10024         int error = 0;
10025
10026         printk(LPFC_MODULE_DESC "\n");
10027         printk(LPFC_COPYRIGHT "\n");
10028
10029         if (lpfc_enable_npiv) {
10030                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10031                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10032         }
10033         lpfc_transport_template =
10034                                 fc_attach_transport(&lpfc_transport_functions);
10035         if (lpfc_transport_template == NULL)
10036                 return -ENOMEM;
10037         if (lpfc_enable_npiv) {
10038                 lpfc_vport_transport_template =
10039                         fc_attach_transport(&lpfc_vport_transport_functions);
10040                 if (lpfc_vport_transport_template == NULL) {
10041                         fc_release_transport(lpfc_transport_template);
10042                         return -ENOMEM;
10043                 }
10044         }
10045         error = pci_register_driver(&lpfc_driver);
10046         if (error) {
10047                 fc_release_transport(lpfc_transport_template);
10048                 if (lpfc_enable_npiv)
10049                         fc_release_transport(lpfc_vport_transport_template);
10050         }
10051
10052         return error;
10053 }
10054
10055 /**
10056  * lpfc_exit - lpfc module removal routine
10057  *
10058  * This routine is invoked when the lpfc module is removed from the kernel.
10059  * The special kernel macro module_exit() is used to indicate the role of
10060  * this routine to the kernel as lpfc module exit point.
10061  */
10062 static void __exit
10063 lpfc_exit(void)
10064 {
10065         pci_unregister_driver(&lpfc_driver);
10066         fc_release_transport(lpfc_transport_template);
10067         if (lpfc_enable_npiv)
10068                 fc_release_transport(lpfc_vport_transport_template);
10069         if (_dump_buf_data) {
10070                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10071                                 "_dump_buf_data at 0x%p\n",
10072                                 (1L << _dump_buf_data_order), _dump_buf_data);
10073                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10074         }
10075
10076         if (_dump_buf_dif) {
10077                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10078                                 "_dump_buf_dif at 0x%p\n",
10079                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
10080                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10081         }
10082 }
10083
10084 module_init(lpfc_init);
10085 module_exit(lpfc_exit);
10086 MODULE_LICENSE("GPL");
10087 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10088 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10089 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);