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) 2004-2014 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 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t *lpfc_used_cpu;
  64 uint32_t lpfc_present_cpu;
  65
  66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  70 static int lpfc_setup_endian_order(struct lpfc_hba *);
  71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  73 static void lpfc_init_sgl_list(struct lpfc_hba *);
  74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  75 static void lpfc_free_active_sgl(struct lpfc_hba *);
  76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  84
  85 static struct scsi_transport_template *lpfc_transport_template = NULL;
  86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  87 static DEFINE_IDR(lpfc_hba_index);
  88
  89 /**
  90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  91  * @phba: pointer to lpfc hba data structure.
  92  *
  93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  94  * mailbox command. It retrieves the revision information from the HBA and
  95  * collects the Vital Product Data (VPD) about the HBA for preparing the
  96  * configuration of the HBA.
  97  *
  98  * Return codes:
  99  *   0 - success.
 100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 101  *   Any other value - indicates an error.
 102  **/
 103 int
 104 lpfc_config_port_prep(struct lpfc_hba *phba)
 105 {
 106         lpfc_vpd_t *vp = &phba->vpd;
 107         int i = 0, rc;
 108         LPFC_MBOXQ_t *pmb;
 109         MAILBOX_t *mb;
 110         char *lpfc_vpd_data = NULL;
 111         uint16_t offset = 0;
 112         static char licensed[56] =
 113                     "key unlock for use with gnu public licensed code only\0";
 114         static int init_key = 1;
 115
 116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 117         if (!pmb) {
 118                 phba->link_state = LPFC_HBA_ERROR;
 119                 return -ENOMEM;
 120         }
 121
 122         mb = &pmb->u.mb;
 123         phba->link_state = LPFC_INIT_MBX_CMDS;
 124
 125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 126                 if (init_key) {
 127                         uint32_t *ptext = (uint32_t *) licensed;
 128
 129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 130                                 *ptext = cpu_to_be32(*ptext);
 131                         init_key = 0;
 132                 }
 133
 134                 lpfc_read_nv(phba, pmb);
 135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 136                         sizeof (mb->un.varRDnvp.rsvd3));
 137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 138                          sizeof (licensed));
 139
 140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 141
 142                 if (rc != MBX_SUCCESS) {
 143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 144                                         "0324 Config Port initialization "
 145                                         "error, mbxCmd x%x READ_NVPARM, "
 146                                         "mbxStatus x%x\n",
 147                                         mb->mbxCommand, mb->mbxStatus);
 148                         mempool_free(pmb, phba->mbox_mem_pool);
 149                         return -ERESTART;
 150                 }
 151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 152                        sizeof(phba->wwnn));
 153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 154                        sizeof(phba->wwpn));
 155         }
 156
 157         phba->sli3_options = 0x0;
 158
 159         /* Setup and issue mailbox READ REV command */
 160         lpfc_read_rev(phba, pmb);
 161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 162         if (rc != MBX_SUCCESS) {
 163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 164                                 "0439 Adapter failed to init, mbxCmd x%x "
 165                                 "READ_REV, mbxStatus x%x\n",
 166                                 mb->mbxCommand, mb->mbxStatus);
 167                 mempool_free( pmb, phba->mbox_mem_pool);
 168                 return -ERESTART;
 169         }
 170
 171
 172         /*
 173          * The value of rr must be 1 since the driver set the cv field to 1.
 174          * This setting requires the FW to set all revision fields.
 175          */
 176         if (mb->un.varRdRev.rr == 0) {
 177                 vp->rev.rBit = 0;
 178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 179                                 "0440 Adapter failed to init, READ_REV has "
 180                                 "missing revision information.\n");
 181                 mempool_free(pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 186                 mempool_free(pmb, phba->mbox_mem_pool);
 187                 return -EINVAL;
 188         }
 189
 190         /* Save information as VPD data */
 191         vp->rev.rBit = 1;
 192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 198         vp->rev.smRev = mb->un.varRdRev.smRev;
 199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 207
 208         /* If the sli feature level is less then 9, we must
 209          * tear down all RPIs and VPIs on link down if NPIV
 210          * is enabled.
 211          */
 212         if (vp->rev.feaLevelHigh < 9)
 213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 214
 215         if (lpfc_is_LC_HBA(phba->pcidev->device))
 216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 217                                                 sizeof (phba->RandomData));
 218
 219         /* Get adapter VPD information */
 220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 221         if (!lpfc_vpd_data)
 222                 goto out_free_mbox;
 223         do {
 224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 226
 227                 if (rc != MBX_SUCCESS) {
 228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 229                                         "0441 VPD not present on adapter, "
 230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 231                                         mb->mbxCommand, mb->mbxStatus);
 232                         mb->un.varDmp.word_cnt = 0;
 233                 }
 234                 /* dump mem may return a zero when finished or we got a
 235                  * mailbox error, either way we are done.
 236                  */
 237                 if (mb->un.varDmp.word_cnt == 0)
 238                         break;
 239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 242                                       lpfc_vpd_data + offset,
 243                                       mb->un.varDmp.word_cnt);
 244                 offset += mb->un.varDmp.word_cnt;
 245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 247
 248         kfree(lpfc_vpd_data);
 249 out_free_mbox:
 250         mempool_free(pmb, phba->mbox_mem_pool);
 251         return 0;
 252 }
 253
 254 /**
 255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 256  * @phba: pointer to lpfc hba data structure.
 257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 258  *
 259  * This is the completion handler for driver's configuring asynchronous event
 260  * mailbox command to the device. If the mailbox command returns successfully,
 261  * it will set internal async event support flag to 1; otherwise, it will
 262  * set internal async event support flag to 0.
 263  **/
 264 static void
 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 266 {
 267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 268                 phba->temp_sensor_support = 1;
 269         else
 270                 phba->temp_sensor_support = 0;
 271         mempool_free(pmboxq, phba->mbox_mem_pool);
 272         return;
 273 }
 274
 275 /**
 276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for dump mailbox command for getting
 281  * wake up parameters. When this command complete, the response contain
 282  * Option rom version of the HBA. This function translate the version number
 283  * into a human readable string and store it in OptionROMVersion.
 284  **/
 285 static void
 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 287 {
 288         struct prog_id *prg;
 289         uint32_t prog_id_word;
 290         char dist = ' ';
 291         /* character array used for decoding dist type. */
 292         char dist_char[] = "nabx";
 293
 294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 295                 mempool_free(pmboxq, phba->mbox_mem_pool);
 296                 return;
 297         }
 298
 299         prg = (struct prog_id *) &prog_id_word;
 300
 301         /* word 7 contain option rom version */
 302         prog_id_word = pmboxq->u.mb.un.varWords[7];
 303
 304         /* Decode the Option rom version word to a readable string */
 305         if (prg->dist < 4)
 306                 dist = dist_char[prg->dist];
 307
 308         if ((prg->dist == 3) && (prg->num == 0))
 309                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 310                         prg->ver, prg->rev, prg->lev);
 311         else
 312                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 313                         prg->ver, prg->rev, prg->lev,
 314                         dist, prg->num);
 315         mempool_free(pmboxq, phba->mbox_mem_pool);
 316         return;
 317 }
 318
 319 /**
 320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 321  *      cfg_soft_wwnn, cfg_soft_wwpn
 322  * @vport: pointer to lpfc vport data structure.
 323  *
 324  *
 325  * Return codes
 326  *   None.
 327  **/
 328 void
 329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 330 {
 331         /* If the soft name exists then update it using the service params */
 332         if (vport->phba->cfg_soft_wwnn)
 333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 334                            vport->fc_sparam.nodeName.u.wwn);
 335         if (vport->phba->cfg_soft_wwpn)
 336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 337                            vport->fc_sparam.portName.u.wwn);
 338
 339         /*
 340          * If the name is empty or there exists a soft name
 341          * then copy the service params name, otherwise use the fc name
 342          */
 343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 345                         sizeof(struct lpfc_name));
 346         else
 347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 348                         sizeof(struct lpfc_name));
 349
 350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 352                         sizeof(struct lpfc_name));
 353         else
 354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 355                         sizeof(struct lpfc_name));
 356 }
 357
 358 /**
 359  * lpfc_config_port_post - Perform lpfc initialization after config port
 360  * @phba: pointer to lpfc hba data structure.
 361  *
 362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 363  * command call. It performs all internal resource and state setups on the
 364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 365  * ELS ring timers, etc.
 366  *
 367  * Return codes
 368  *   0 - success.
 369  *   Any other value - error.
 370  **/
 371 int
 372 lpfc_config_port_post(struct lpfc_hba *phba)
 373 {
 374         struct lpfc_vport *vport = phba->pport;
 375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 376         LPFC_MBOXQ_t *pmb;
 377         MAILBOX_t *mb;
 378         struct lpfc_dmabuf *mp;
 379         struct lpfc_sli *psli = &phba->sli;
 380         uint32_t status, timeout;
 381         int i, j;
 382         int rc;
 383
 384         spin_lock_irq(&phba->hbalock);
 385         /*
 386          * If the Config port completed correctly the HBA is not
 387          * over heated any more.
 388          */
 389         if (phba->over_temp_state == HBA_OVER_TEMP)
 390                 phba->over_temp_state = HBA_NORMAL_TEMP;
 391         spin_unlock_irq(&phba->hbalock);
 392
 393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 394         if (!pmb) {
 395                 phba->link_state = LPFC_HBA_ERROR;
 396                 return -ENOMEM;
 397         }
 398         mb = &pmb->u.mb;
 399
 400         /* Get login parameters for NID.  */
 401         rc = lpfc_read_sparam(phba, pmb, 0);
 402         if (rc) {
 403                 mempool_free(pmb, phba->mbox_mem_pool);
 404                 return -ENOMEM;
 405         }
 406
 407         pmb->vport = vport;
 408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 410                                 "0448 Adapter failed init, mbxCmd x%x "
 411                                 "READ_SPARM mbxStatus x%x\n",
 412                                 mb->mbxCommand, mb->mbxStatus);
 413                 phba->link_state = LPFC_HBA_ERROR;
 414                 mp = (struct lpfc_dmabuf *) pmb->context1;
 415                 mempool_free(pmb, phba->mbox_mem_pool);
 416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417                 kfree(mp);
 418                 return -EIO;
 419         }
 420
 421         mp = (struct lpfc_dmabuf *) pmb->context1;
 422
 423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 425         kfree(mp);
 426         pmb->context1 = NULL;
 427         lpfc_update_vport_wwn(vport);
 428
 429         /* Update the fc_host data structures with new wwn. */
 430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 433
 434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 435         /* This should be consolidated into parse_vpd ? - mr */
 436         if (phba->SerialNumber[0] == 0) {
 437                 uint8_t *outptr;
 438
 439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 440                 for (i = 0; i < 12; i++) {
 441                         status = *outptr++;
 442                         j = ((status & 0xf0) >> 4);
 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                         i++;
 450                         j = (status & 0xf);
 451                         if (j <= 9)
 452                                 phba->SerialNumber[i] =
 453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 454                         else
 455                                 phba->SerialNumber[i] =
 456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 457                 }
 458         }
 459
 460         lpfc_read_config(phba, pmb);
 461         pmb->vport = vport;
 462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 464                                 "0453 Adapter failed to init, mbxCmd x%x "
 465                                 "READ_CONFIG, mbxStatus x%x\n",
 466                                 mb->mbxCommand, mb->mbxStatus);
 467                 phba->link_state = LPFC_HBA_ERROR;
 468                 mempool_free( pmb, phba->mbox_mem_pool);
 469                 return -EIO;
 470         }
 471
 472         /* Check if the port is disabled */
 473         lpfc_sli_read_link_ste(phba);
 474
 475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 476         i = (mb->un.varRdConfig.max_xri + 1);
 477         if (phba->cfg_hba_queue_depth > i) {
 478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 479                                 "3359 HBA queue depth changed from %d to %d\n",
 480                                 phba->cfg_hba_queue_depth, i);
 481                 phba->cfg_hba_queue_depth = i;
 482         }
 483
 484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 485         i = (mb->un.varRdConfig.max_xri >> 3);
 486         if (phba->pport->cfg_lun_queue_depth > i) {
 487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 488                                 "3360 LUN queue depth changed from %d to %d\n",
 489                                 phba->pport->cfg_lun_queue_depth, i);
 490                 phba->pport->cfg_lun_queue_depth = i;
 491         }
 492
 493         phba->lmt = mb->un.varRdConfig.lmt;
 494
 495         /* Get the default values for Model Name and Description */
 496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 497
 498         phba->link_state = LPFC_LINK_DOWN;
 499
 500         /* Only process IOCBs on ELS ring till hba_state is READY */
 501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 507
 508         /* Post receive buffers for desired rings */
 509         if (phba->sli_rev != 3)
 510                 lpfc_post_rcv_buf(phba);
 511
 512         /*
 513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 514          */
 515         if (phba->intr_type == MSIX) {
 516                 rc = lpfc_config_msi(phba, pmb);
 517                 if (rc) {
 518                         mempool_free(pmb, phba->mbox_mem_pool);
 519                         return -EIO;
 520                 }
 521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 522                 if (rc != MBX_SUCCESS) {
 523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 524                                         "0352 Config MSI mailbox command "
 525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 526                                         pmb->u.mb.mbxCommand,
 527                                         pmb->u.mb.mbxStatus);
 528                         mempool_free(pmb, phba->mbox_mem_pool);
 529                         return -EIO;
 530                 }
 531         }
 532
 533         spin_lock_irq(&phba->hbalock);
 534         /* Initialize ERATT handling flag */
 535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 536
 537         /* Enable appropriate host interrupts */
 538         if (lpfc_readl(phba->HCregaddr, &status)) {
 539                 spin_unlock_irq(&phba->hbalock);
 540                 return -EIO;
 541         }
 542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 543         if (psli->num_rings > 0)
 544                 status |= HC_R0INT_ENA;
 545         if (psli->num_rings > 1)
 546                 status |= HC_R1INT_ENA;
 547         if (psli->num_rings > 2)
 548                 status |= HC_R2INT_ENA;
 549         if (psli->num_rings > 3)
 550                 status |= HC_R3INT_ENA;
 551
 552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 554                 status &= ~(HC_R0INT_ENA);
 555
 556         writel(status, phba->HCregaddr);
 557         readl(phba->HCregaddr); /* flush */
 558         spin_unlock_irq(&phba->hbalock);
 559
 560         /* Set up ring-0 (ELS) timer */
 561         timeout = phba->fc_ratov * 2;
 562         mod_timer(&vport->els_tmofunc,
 563                   jiffies + msecs_to_jiffies(1000 * timeout));
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc,
 566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 567         phba->hb_outstanding = 0;
 568         phba->last_completion_time = jiffies;
 569         /* Set up error attention (ERATT) polling timer */
 570         mod_timer(&phba->eratt_poll,
 571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 572
 573         if (phba->hba_flag & LINK_DISABLED) {
 574                 lpfc_printf_log(phba,
 575                         KERN_ERR, LOG_INIT,
 576                         "2598 Adapter Link is disabled.\n");
 577                 lpfc_down_link(phba, pmb);
 578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 581                         lpfc_printf_log(phba,
 582                         KERN_ERR, LOG_INIT,
 583                         "2599 Adapter failed to issue DOWN_LINK"
 584                         " mbox command rc 0x%x\n", rc);
 585
 586                         mempool_free(pmb, phba->mbox_mem_pool);
 587                         return -EIO;
 588                 }
 589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 590                 mempool_free(pmb, phba->mbox_mem_pool);
 591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 592                 if (rc)
 593                         return rc;
 594         }
 595         /* MBOX buffer will be freed in mbox compl */
 596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 597         if (!pmb) {
 598                 phba->link_state = LPFC_HBA_ERROR;
 599                 return -ENOMEM;
 600         }
 601
 602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 604         pmb->vport = phba->pport;
 605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606
 607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 608                 lpfc_printf_log(phba,
 609                                 KERN_ERR,
 610                                 LOG_INIT,
 611                                 "0456 Adapter failed to issue "
 612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 613                                 rc);
 614                 mempool_free(pmb, phba->mbox_mem_pool);
 615         }
 616
 617         /* Get Option rom version */
 618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 619         if (!pmb) {
 620                 phba->link_state = LPFC_HBA_ERROR;
 621                 return -ENOMEM;
 622         }
 623
 624         lpfc_dump_wakeup_param(phba, pmb);
 625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 626         pmb->vport = phba->pport;
 627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 628
 629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 631                                 "to get Option ROM version status x%x\n", rc);
 632                 mempool_free(pmb, phba->mbox_mem_pool);
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * lpfc_hba_init_link - Initialize the FC link
 640  * @phba: pointer to lpfc hba data structure.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 static int
 653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 654 {
 655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 656 }
 657
 658 /**
 659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 660  * @phba: pointer to lpfc hba data structure.
 661  * @fc_topology: desired fc topology.
 662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 663  *
 664  * This routine will issue the INIT_LINK mailbox command call.
 665  * It is available to other drivers through the lpfc_hba data
 666  * structure for use as a delayed link up mechanism with the
 667  * module parameter lpfc_suppress_link_up.
 668  *
 669  * Return code
 670  *              0 - success
 671  *              Any other value - error
 672  **/
 673 int
 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 675                                uint32_t flag)
 676 {
 677         struct lpfc_vport *vport = phba->pport;
 678         LPFC_MBOXQ_t *pmb;
 679         MAILBOX_t *mb;
 680         int rc;
 681
 682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         if (!pmb) {
 684                 phba->link_state = LPFC_HBA_ERROR;
 685                 return -ENOMEM;
 686         }
 687         mb = &pmb->u.mb;
 688         pmb->vport = vport;
 689
 690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 692              !(phba->lmt & LMT_1Gb)) ||
 693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 694              !(phba->lmt & LMT_2Gb)) ||
 695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 696              !(phba->lmt & LMT_4Gb)) ||
 697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 698              !(phba->lmt & LMT_8Gb)) ||
 699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 700              !(phba->lmt & LMT_10Gb)) ||
 701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 702              !(phba->lmt & LMT_16Gb))) {
 703                 /* Reset link speed to auto */
 704                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 705                         "1302 Invalid speed for this board:%d "
 706                         "Reset link speed to auto.\n",
 707                         phba->cfg_link_speed);
 708                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 709         }
 710         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 711         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 712         if (phba->sli_rev < LPFC_SLI_REV4)
 713                 lpfc_set_loopback_flag(phba);
 714         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 715         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 717                         "0498 Adapter failed to init, mbxCmd x%x "
 718                         "INIT_LINK, mbxStatus x%x\n",
 719                         mb->mbxCommand, mb->mbxStatus);
 720                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 721                         /* Clear all interrupt enable conditions */
 722                         writel(0, phba->HCregaddr);
 723                         readl(phba->HCregaddr); /* flush */
 724                         /* Clear all pending interrupts */
 725                         writel(0xffffffff, phba->HAregaddr);
 726                         readl(phba->HAregaddr); /* flush */
 727                 }
 728                 phba->link_state = LPFC_HBA_ERROR;
 729                 if (rc != MBX_BUSY || flag == MBX_POLL)
 730                         mempool_free(pmb, phba->mbox_mem_pool);
 731                 return -EIO;
 732         }
 733         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 734         if (flag == MBX_POLL)
 735                 mempool_free(pmb, phba->mbox_mem_pool);
 736
 737         return 0;
 738 }
 739
 740 /**
 741  * lpfc_hba_down_link - this routine downs the FC link
 742  * @phba: pointer to lpfc hba data structure.
 743  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 744  *
 745  * This routine will issue the DOWN_LINK mailbox command call.
 746  * It is available to other drivers through the lpfc_hba data
 747  * structure for use to stop the link.
 748  *
 749  * Return code
 750  *              0 - success
 751  *              Any other value - error
 752  **/
 753 static int
 754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 755 {
 756         LPFC_MBOXQ_t *pmb;
 757         int rc;
 758
 759         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 760         if (!pmb) {
 761                 phba->link_state = LPFC_HBA_ERROR;
 762                 return -ENOMEM;
 763         }
 764
 765         lpfc_printf_log(phba,
 766                 KERN_ERR, LOG_INIT,
 767                 "0491 Adapter Link is disabled.\n");
 768         lpfc_down_link(phba, pmb);
 769         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 770         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 771         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 772                 lpfc_printf_log(phba,
 773                 KERN_ERR, LOG_INIT,
 774                 "2522 Adapter failed to issue DOWN_LINK"
 775                 " mbox command rc 0x%x\n", rc);
 776
 777                 mempool_free(pmb, phba->mbox_mem_pool);
 778                 return -EIO;
 779         }
 780         if (flag == MBX_POLL)
 781                 mempool_free(pmb, phba->mbox_mem_pool);
 782
 783         return 0;
 784 }
 785
 786 /**
 787  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 788  * @phba: pointer to lpfc HBA data structure.
 789  *
 790  * This routine will do LPFC uninitialization before the HBA is reset when
 791  * bringing down the SLI Layer.
 792  *
 793  * Return codes
 794  *   0 - success.
 795  *   Any other value - error.
 796  **/
 797 int
 798 lpfc_hba_down_prep(struct lpfc_hba *phba)
 799 {
 800         struct lpfc_vport **vports;
 801         int i;
 802
 803         if (phba->sli_rev <= LPFC_SLI_REV3) {
 804                 /* Disable interrupts */
 805                 writel(0, phba->HCregaddr);
 806                 readl(phba->HCregaddr); /* flush */
 807         }
 808
 809         if (phba->pport->load_flag & FC_UNLOADING)
 810                 lpfc_cleanup_discovery_resources(phba->pport);
 811         else {
 812                 vports = lpfc_create_vport_work_array(phba);
 813                 if (vports != NULL)
 814                         for (i = 0; i <= phba->max_vports &&
 815                                 vports[i] != NULL; i++)
 816                                 lpfc_cleanup_discovery_resources(vports[i]);
 817                 lpfc_destroy_vport_work_array(phba, vports);
 818         }
 819         return 0;
 820 }
 821
 822 /**
 823  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 824  * rspiocb which got deferred
 825  *
 826  * @phba: pointer to lpfc HBA data structure.
 827  *
 828  * This routine will cleanup completed slow path events after HBA is reset
 829  * when bringing down the SLI Layer.
 830  *
 831  *
 832  * Return codes
 833  *   void.
 834  **/
 835 static void
 836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 837 {
 838         struct lpfc_iocbq *rspiocbq;
 839         struct hbq_dmabuf *dmabuf;
 840         struct lpfc_cq_event *cq_event;
 841
 842         spin_lock_irq(&phba->hbalock);
 843         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 844         spin_unlock_irq(&phba->hbalock);
 845
 846         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 847                 /* Get the response iocb from the head of work queue */
 848                 spin_lock_irq(&phba->hbalock);
 849                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 850                                  cq_event, struct lpfc_cq_event, list);
 851                 spin_unlock_irq(&phba->hbalock);
 852
 853                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 854                 case CQE_CODE_COMPL_WQE:
 855                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 856                                                  cq_event);
 857                         lpfc_sli_release_iocbq(phba, rspiocbq);
 858                         break;
 859                 case CQE_CODE_RECEIVE:
 860                 case CQE_CODE_RECEIVE_V1:
 861                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 862                                               cq_event);
 863                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 864                 }
 865         }
 866 }
 867
 868 /**
 869  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 870  * @phba: pointer to lpfc HBA data structure.
 871  *
 872  * This routine will cleanup posted ELS buffers after the HBA is reset
 873  * when bringing down the SLI Layer.
 874  *
 875  *
 876  * Return codes
 877  *   void.
 878  **/
 879 static void
 880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 881 {
 882         struct lpfc_sli *psli = &phba->sli;
 883         struct lpfc_sli_ring *pring;
 884         struct lpfc_dmabuf *mp, *next_mp;
 885         LIST_HEAD(buflist);
 886         int count;
 887
 888         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 889                 lpfc_sli_hbqbuf_free_all(phba);
 890         else {
 891                 /* Cleanup preposted buffers on the ELS ring */
 892                 pring = &psli->ring[LPFC_ELS_RING];
 893                 spin_lock_irq(&phba->hbalock);
 894                 list_splice_init(&pring->postbufq, &buflist);
 895                 spin_unlock_irq(&phba->hbalock);
 896
 897                 count = 0;
 898                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 899                         list_del(&mp->list);
 900                         count++;
 901                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 902                         kfree(mp);
 903                 }
 904
 905                 spin_lock_irq(&phba->hbalock);
 906                 pring->postbufq_cnt -= count;
 907                 spin_unlock_irq(&phba->hbalock);
 908         }
 909 }
 910
 911 /**
 912  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 913  * @phba: pointer to lpfc HBA data structure.
 914  *
 915  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 916  * down the SLI Layer.
 917  *
 918  * Return codes
 919  *   void
 920  **/
 921 static void
 922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 923 {
 924         struct lpfc_sli *psli = &phba->sli;
 925         struct lpfc_sli_ring *pring;
 926         LIST_HEAD(completions);
 927         int i;
 928
 929         for (i = 0; i < psli->num_rings; i++) {
 930                 pring = &psli->ring[i];
 931                 if (phba->sli_rev >= LPFC_SLI_REV4)
 932                         spin_lock_irq(&pring->ring_lock);
 933                 else
 934                         spin_lock_irq(&phba->hbalock);
 935                 /* At this point in time the HBA is either reset or DOA. Either
 936                  * way, nothing should be on txcmplq as it will NEVER complete.
 937                  */
 938                 list_splice_init(&pring->txcmplq, &completions);
 939                 pring->txcmplq_cnt = 0;
 940
 941                 if (phba->sli_rev >= LPFC_SLI_REV4)
 942                         spin_unlock_irq(&pring->ring_lock);
 943                 else
 944                         spin_unlock_irq(&phba->hbalock);
 945
 946                 /* Cancel all the IOCBs from the completions list */
 947                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 948                                       IOERR_SLI_ABORTED);
 949                 lpfc_sli_abort_iocb_ring(phba, pring);
 950         }
 951 }
 952
 953 /**
 954  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 955         int i;
 956  * @phba: pointer to lpfc HBA data structure.
 957  *
 958  * This routine will do uninitialization after the HBA is reset when bring
 959  * down the SLI Layer.
 960  *
 961  * Return codes
 962  *   0 - success.
 963  *   Any other value - error.
 964  **/
 965 static int
 966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 967 {
 968         lpfc_hba_free_post_buf(phba);
 969         lpfc_hba_clean_txcmplq(phba);
 970         return 0;
 971 }
 972
 973 /**
 974  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 975  * @phba: pointer to lpfc HBA data structure.
 976  *
 977  * This routine will do uninitialization after the HBA is reset when bring
 978  * down the SLI Layer.
 979  *
 980  * Return codes
 981  *   0 - success.
 982  *   Any other value - error.
 983  **/
 984 static int
 985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 986 {
 987         struct lpfc_scsi_buf *psb, *psb_next;
 988         LIST_HEAD(aborts);
 989         unsigned long iflag = 0;
 990         struct lpfc_sglq *sglq_entry = NULL;
 991         struct lpfc_sli *psli = &phba->sli;
 992         struct lpfc_sli_ring *pring;
 993
 994         lpfc_hba_free_post_buf(phba);
 995         lpfc_hba_clean_txcmplq(phba);
 996         pring = &psli->ring[LPFC_ELS_RING];
 997
 998         /* At this point in time the HBA is either reset or DOA. Either
 999          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000          * on the lpfc_sgl_list so that it can either be freed if the
1001          * driver is unloading or reposted if the driver is restarting
1002          * the port.
1003          */
1004         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1005                                         /* scsl_buf_list */
1006         /* abts_sgl_list_lock required because worker thread uses this
1007          * list.
1008          */
1009         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010         list_for_each_entry(sglq_entry,
1011                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012                 sglq_entry->state = SGL_FREED;
1013
1014         spin_lock(&pring->ring_lock);
1015         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016                         &phba->sli4_hba.lpfc_sgl_list);
1017         spin_unlock(&pring->ring_lock);
1018         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019         /* abts_scsi_buf_list_lock required because worker thread uses this
1020          * list.
1021          */
1022         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1024                         &aborts);
1025         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026         spin_unlock_irq(&phba->hbalock);
1027
1028         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1029                 psb->pCmd = NULL;
1030                 psb->status = IOSTAT_SUCCESS;
1031         }
1032         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1035
1036         lpfc_sli4_free_sp_events(phba);
1037         return 0;
1038 }
1039
1040 /**
1041  * lpfc_hba_down_post - Wrapper func for hba down post routine
1042  * @phba: pointer to lpfc HBA data structure.
1043  *
1044  * This routine wraps the actual SLI3 or SLI4 routine for performing
1045  * uninitialization after the HBA is reset when bring down the SLI Layer.
1046  *
1047  * Return codes
1048  *   0 - success.
1049  *   Any other value - error.
1050  **/
1051 int
1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1053 {
1054         return (*phba->lpfc_hba_down_post)(phba);
1055 }
1056
1057 /**
1058  * lpfc_hb_timeout - The HBA-timer timeout handler
1059  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1060  *
1061  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063  * work-port-events bitmap and the worker thread is notified. This timeout
1064  * event will be used by the worker thread to invoke the actual timeout
1065  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066  * be performed in the timeout handler and the HBA timeout event bit shall
1067  * be cleared by the worker thread after it has taken the event bitmap out.
1068  **/
1069 static void
1070 lpfc_hb_timeout(unsigned long ptr)
1071 {
1072         struct lpfc_hba *phba;
1073         uint32_t tmo_posted;
1074         unsigned long iflag;
1075
1076         phba = (struct lpfc_hba *)ptr;
1077
1078         /* Check for heart beat timeout conditions */
1079         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1081         if (!tmo_posted)
1082                 phba->pport->work_port_events |= WORKER_HB_TMO;
1083         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1084
1085         /* Tell the worker thread there is work to do */
1086         if (!tmo_posted)
1087                 lpfc_worker_wake_up(phba);
1088         return;
1089 }
1090
1091 /**
1092  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1094  *
1095  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097  * work-port-events bitmap and the worker thread is notified. This timeout
1098  * event will be used by the worker thread to invoke the actual timeout
1099  * handler routine, lpfc_rrq_handler. Any periodical operations will
1100  * be performed in the timeout handler and the RRQ timeout event bit shall
1101  * be cleared by the worker thread after it has taken the event bitmap out.
1102  **/
1103 static void
1104 lpfc_rrq_timeout(unsigned long ptr)
1105 {
1106         struct lpfc_hba *phba;
1107         unsigned long iflag;
1108
1109         phba = (struct lpfc_hba *)ptr;
1110         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111         if (!(phba->pport->load_flag & FC_UNLOADING))
1112                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1113         else
1114                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1116
1117         if (!(phba->pport->load_flag & FC_UNLOADING))
1118                 lpfc_worker_wake_up(phba);
1119 }
1120
1121 /**
1122  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123  * @phba: pointer to lpfc hba data structure.
1124  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1125  *
1126  * This is the callback function to the lpfc heart-beat mailbox command.
1127  * If configured, the lpfc driver issues the heart-beat mailbox command to
1128  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131  * heart-beat outstanding state. Once the mailbox command comes back and
1132  * no error conditions detected, the heart-beat mailbox command timer is
1133  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134  * state is cleared for the next heart-beat. If the timer expired with the
1135  * heart-beat outstanding state set, the driver will put the HBA offline.
1136  **/
1137 static void
1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1139 {
1140         unsigned long drvr_flag;
1141
1142         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143         phba->hb_outstanding = 0;
1144         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1145
1146         /* Check and reset heart-beat timer is necessary */
1147         mempool_free(pmboxq, phba->mbox_mem_pool);
1148         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149                 !(phba->link_state == LPFC_HBA_ERROR) &&
1150                 !(phba->pport->load_flag & FC_UNLOADING))
1151                 mod_timer(&phba->hb_tmofunc,
1152                           jiffies +
1153                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1154         return;
1155 }
1156
1157 /**
1158  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159  * @phba: pointer to lpfc hba data structure.
1160  *
1161  * This is the actual HBA-timer timeout handler to be invoked by the worker
1162  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163  * handler performs any periodic operations needed for the device. If such
1164  * periodic event has already been attended to either in the interrupt handler
1165  * or by processing slow-ring or fast-ring events within the HBA-timer
1166  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168  * is configured and there is no heart-beat mailbox command outstanding, a
1169  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1171  * to offline.
1172  **/
1173 void
1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1175 {
1176         struct lpfc_vport **vports;
1177         LPFC_MBOXQ_t *pmboxq;
1178         struct lpfc_dmabuf *buf_ptr;
1179         int retval, i;
1180         struct lpfc_sli *psli = &phba->sli;
1181         LIST_HEAD(completions);
1182
1183         vports = lpfc_create_vport_work_array(phba);
1184         if (vports != NULL)
1185                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186                         lpfc_rcv_seq_check_edtov(vports[i]);
1187         lpfc_destroy_vport_work_array(phba, vports);
1188
1189         if ((phba->link_state == LPFC_HBA_ERROR) ||
1190                 (phba->pport->load_flag & FC_UNLOADING) ||
1191                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1192                 return;
1193
1194         spin_lock_irq(&phba->pport->work_port_lock);
1195
1196         if (time_after(phba->last_completion_time +
1197                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1198                         jiffies)) {
1199                 spin_unlock_irq(&phba->pport->work_port_lock);
1200                 if (!phba->hb_outstanding)
1201                         mod_timer(&phba->hb_tmofunc,
1202                                 jiffies +
1203                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1204                 else
1205                         mod_timer(&phba->hb_tmofunc,
1206                                 jiffies +
1207                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1208                 return;
1209         }
1210         spin_unlock_irq(&phba->pport->work_port_lock);
1211
1212         if (phba->elsbuf_cnt &&
1213                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214                 spin_lock_irq(&phba->hbalock);
1215                 list_splice_init(&phba->elsbuf, &completions);
1216                 phba->elsbuf_cnt = 0;
1217                 phba->elsbuf_prev_cnt = 0;
1218                 spin_unlock_irq(&phba->hbalock);
1219
1220                 while (!list_empty(&completions)) {
1221                         list_remove_head(&completions, buf_ptr,
1222                                 struct lpfc_dmabuf, list);
1223                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1224                         kfree(buf_ptr);
1225                 }
1226         }
1227         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1228
1229         /* If there is no heart beat outstanding, issue a heartbeat command */
1230         if (phba->cfg_enable_hba_heartbeat) {
1231                 if (!phba->hb_outstanding) {
1232                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233                                 (list_empty(&psli->mboxq))) {
1234                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1235                                                         GFP_KERNEL);
1236                                 if (!pmboxq) {
1237                                         mod_timer(&phba->hb_tmofunc,
1238                                                  jiffies +
1239                                                  msecs_to_jiffies(1000 *
1240                                                  LPFC_HB_MBOX_INTERVAL));
1241                                         return;
1242                                 }
1243
1244                                 lpfc_heart_beat(phba, pmboxq);
1245                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246                                 pmboxq->vport = phba->pport;
1247                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1248                                                 MBX_NOWAIT);
1249
1250                                 if (retval != MBX_BUSY &&
1251                                         retval != MBX_SUCCESS) {
1252                                         mempool_free(pmboxq,
1253                                                         phba->mbox_mem_pool);
1254                                         mod_timer(&phba->hb_tmofunc,
1255                                                 jiffies +
1256                                                 msecs_to_jiffies(1000 *
1257                                                 LPFC_HB_MBOX_INTERVAL));
1258                                         return;
1259                                 }
1260                                 phba->skipped_hb = 0;
1261                                 phba->hb_outstanding = 1;
1262                         } else if (time_before_eq(phba->last_completion_time,
1263                                         phba->skipped_hb)) {
1264                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265                                         "2857 Last completion time not "
1266                                         " updated in %d ms\n",
1267                                         jiffies_to_msecs(jiffies
1268                                                  - phba->last_completion_time));
1269                         } else
1270                                 phba->skipped_hb = jiffies;
1271
1272                         mod_timer(&phba->hb_tmofunc,
1273                                  jiffies +
1274                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1275                         return;
1276                 } else {
1277                         /*
1278                         * If heart beat timeout called with hb_outstanding set
1279                         * we need to give the hb mailbox cmd a chance to
1280                         * complete or TMO.
1281                         */
1282                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283                                         "0459 Adapter heartbeat still out"
1284                                         "standing:last compl time was %d ms.\n",
1285                                         jiffies_to_msecs(jiffies
1286                                                  - phba->last_completion_time));
1287                         mod_timer(&phba->hb_tmofunc,
1288                                 jiffies +
1289                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1290                 }
1291         }
1292 }
1293
1294 /**
1295  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296  * @phba: pointer to lpfc hba data structure.
1297  *
1298  * This routine is called to bring the HBA offline when HBA hardware error
1299  * other than Port Error 6 has been detected.
1300  **/
1301 static void
1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1303 {
1304         struct lpfc_sli   *psli = &phba->sli;
1305
1306         spin_lock_irq(&phba->hbalock);
1307         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308         spin_unlock_irq(&phba->hbalock);
1309         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1310
1311         lpfc_offline(phba);
1312         lpfc_reset_barrier(phba);
1313         spin_lock_irq(&phba->hbalock);
1314         lpfc_sli_brdreset(phba);
1315         spin_unlock_irq(&phba->hbalock);
1316         lpfc_hba_down_post(phba);
1317         lpfc_sli_brdready(phba, HS_MBRDY);
1318         lpfc_unblock_mgmt_io(phba);
1319         phba->link_state = LPFC_HBA_ERROR;
1320         return;
1321 }
1322
1323 /**
1324  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325  * @phba: pointer to lpfc hba data structure.
1326  *
1327  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328  * other than Port Error 6 has been detected.
1329  **/
1330 void
1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1332 {
1333         spin_lock_irq(&phba->hbalock);
1334         phba->link_state = LPFC_HBA_ERROR;
1335         spin_unlock_irq(&phba->hbalock);
1336
1337         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1338         lpfc_offline(phba);
1339         lpfc_hba_down_post(phba);
1340         lpfc_unblock_mgmt_io(phba);
1341 }
1342
1343 /**
1344  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1345  * @phba: pointer to lpfc hba data structure.
1346  *
1347  * This routine is invoked to handle the deferred HBA hardware error
1348  * conditions. This type of error is indicated by HBA by setting ER1
1349  * and another ER bit in the host status register. The driver will
1350  * wait until the ER1 bit clears before handling the error condition.
1351  **/
1352 static void
1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1354 {
1355         uint32_t old_host_status = phba->work_hs;
1356         struct lpfc_sli *psli = &phba->sli;
1357
1358         /* If the pci channel is offline, ignore possible errors,
1359          * since we cannot communicate with the pci card anyway.
1360          */
1361         if (pci_channel_offline(phba->pcidev)) {
1362                 spin_lock_irq(&phba->hbalock);
1363                 phba->hba_flag &= ~DEFER_ERATT;
1364                 spin_unlock_irq(&phba->hbalock);
1365                 return;
1366         }
1367
1368         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1369                 "0479 Deferred Adapter Hardware Error "
1370                 "Data: x%x x%x x%x\n",
1371                 phba->work_hs,
1372                 phba->work_status[0], phba->work_status[1]);
1373
1374         spin_lock_irq(&phba->hbalock);
1375         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376         spin_unlock_irq(&phba->hbalock);
1377
1378
1379         /*
1380          * Firmware stops when it triggred erratt. That could cause the I/Os
1381          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1382          * SCSI layer retry it after re-establishing link.
1383          */
1384         lpfc_sli_abort_fcp_rings(phba);
1385
1386         /*
1387          * There was a firmware error. Take the hba offline and then
1388          * attempt to restart it.
1389          */
1390         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1391         lpfc_offline(phba);
1392
1393         /* Wait for the ER1 bit to clear.*/
1394         while (phba->work_hs & HS_FFER1) {
1395                 msleep(100);
1396                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1397                         phba->work_hs = UNPLUG_ERR ;
1398                         break;
1399                 }
1400                 /* If driver is unloading let the worker thread continue */
1401                 if (phba->pport->load_flag & FC_UNLOADING) {
1402                         phba->work_hs = 0;
1403                         break;
1404                 }
1405         }
1406
1407         /*
1408          * This is to ptrotect against a race condition in which
1409          * first write to the host attention register clear the
1410          * host status register.
1411          */
1412         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1413                 phba->work_hs = old_host_status & ~HS_FFER1;
1414
1415         spin_lock_irq(&phba->hbalock);
1416         phba->hba_flag &= ~DEFER_ERATT;
1417         spin_unlock_irq(&phba->hbalock);
1418         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1419         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1420 }
1421
1422 static void
1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1424 {
1425         struct lpfc_board_event_header board_event;
1426         struct Scsi_Host *shost;
1427
1428         board_event.event_type = FC_REG_BOARD_EVENT;
1429         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1430         shost = lpfc_shost_from_vport(phba->pport);
1431         fc_host_post_vendor_event(shost, fc_get_event_number(),
1432                                   sizeof(board_event),
1433                                   (char *) &board_event,
1434                                   LPFC_NL_VENDOR_ID);
1435 }
1436
1437 /**
1438  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1439  * @phba: pointer to lpfc hba data structure.
1440  *
1441  * This routine is invoked to handle the following HBA hardware error
1442  * conditions:
1443  * 1 - HBA error attention interrupt
1444  * 2 - DMA ring index out of range
1445  * 3 - Mailbox command came back as unknown
1446  **/
1447 static void
1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1449 {
1450         struct lpfc_vport *vport = phba->pport;
1451         struct lpfc_sli   *psli = &phba->sli;
1452         uint32_t event_data;
1453         unsigned long temperature;
1454         struct temp_event temp_event_data;
1455         struct Scsi_Host  *shost;
1456
1457         /* If the pci channel is offline, ignore possible errors,
1458          * since we cannot communicate with the pci card anyway.
1459          */
1460         if (pci_channel_offline(phba->pcidev)) {
1461                 spin_lock_irq(&phba->hbalock);
1462                 phba->hba_flag &= ~DEFER_ERATT;
1463                 spin_unlock_irq(&phba->hbalock);
1464                 return;
1465         }
1466
1467         /* If resets are disabled then leave the HBA alone and return */
1468         if (!phba->cfg_enable_hba_reset)
1469                 return;
1470
1471         /* Send an internal error event to mgmt application */
1472         lpfc_board_errevt_to_mgmt(phba);
1473
1474         if (phba->hba_flag & DEFER_ERATT)
1475                 lpfc_handle_deferred_eratt(phba);
1476
1477         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1478                 if (phba->work_hs & HS_FFER6)
1479                         /* Re-establishing Link */
1480                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1481                                         "1301 Re-establishing Link "
1482                                         "Data: x%x x%x x%x\n",
1483                                         phba->work_hs, phba->work_status[0],
1484                                         phba->work_status[1]);
1485                 if (phba->work_hs & HS_FFER8)
1486                         /* Device Zeroization */
1487                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1488                                         "2861 Host Authentication device "
1489                                         "zeroization Data:x%x x%x x%x\n",
1490                                         phba->work_hs, phba->work_status[0],
1491                                         phba->work_status[1]);
1492
1493                 spin_lock_irq(&phba->hbalock);
1494                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495                 spin_unlock_irq(&phba->hbalock);
1496
1497                 /*
1498                 * Firmware stops when it triggled erratt with HS_FFER6.
1499                 * That could cause the I/Os dropped by the firmware.
1500                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1501                 * retry it after re-establishing link.
1502                 */
1503                 lpfc_sli_abort_fcp_rings(phba);
1504
1505                 /*
1506                  * There was a firmware error.  Take the hba offline and then
1507                  * attempt to restart it.
1508                  */
1509                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1510                 lpfc_offline(phba);
1511                 lpfc_sli_brdrestart(phba);
1512                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1513                         lpfc_unblock_mgmt_io(phba);
1514                         return;
1515                 }
1516                 lpfc_unblock_mgmt_io(phba);
1517         } else if (phba->work_hs & HS_CRIT_TEMP) {
1518                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1519                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1520                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1521                 temp_event_data.data = (uint32_t)temperature;
1522
1523                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1524                                 "0406 Adapter maximum temperature exceeded "
1525                                 "(%ld), taking this port offline "
1526                                 "Data: x%x x%x x%x\n",
1527                                 temperature, phba->work_hs,
1528                                 phba->work_status[0], phba->work_status[1]);
1529
1530                 shost = lpfc_shost_from_vport(phba->pport);
1531                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1532                                           sizeof(temp_event_data),
1533                                           (char *) &temp_event_data,
1534                                           SCSI_NL_VID_TYPE_PCI
1535                                           | PCI_VENDOR_ID_EMULEX);
1536
1537                 spin_lock_irq(&phba->hbalock);
1538                 phba->over_temp_state = HBA_OVER_TEMP;
1539                 spin_unlock_irq(&phba->hbalock);
1540                 lpfc_offline_eratt(phba);
1541
1542         } else {
1543                 /* The if clause above forces this code path when the status
1544                  * failure is a value other than FFER6. Do not call the offline
1545                  * twice. This is the adapter hardware error path.
1546                  */
1547                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1548                                 "0457 Adapter Hardware Error "
1549                                 "Data: x%x x%x x%x\n",
1550                                 phba->work_hs,
1551                                 phba->work_status[0], phba->work_status[1]);
1552
1553                 event_data = FC_REG_DUMP_EVENT;
1554                 shost = lpfc_shost_from_vport(vport);
1555                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1556                                 sizeof(event_data), (char *) &event_data,
1557                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1558
1559                 lpfc_offline_eratt(phba);
1560         }
1561         return;
1562 }
1563
1564 /**
1565  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1566  * @phba: pointer to lpfc hba data structure.
1567  * @mbx_action: flag for mailbox shutdown action.
1568  *
1569  * This routine is invoked to perform an SLI4 port PCI function reset in
1570  * response to port status register polling attention. It waits for port
1571  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1572  * During this process, interrupt vectors are freed and later requested
1573  * for handling possible port resource change.
1574  **/
1575 static int
1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1577                             bool en_rn_msg)
1578 {
1579         int rc;
1580         uint32_t intr_mode;
1581
1582         /*
1583          * On error status condition, driver need to wait for port
1584          * ready before performing reset.
1585          */
1586         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1587         if (!rc) {
1588                 /* need reset: attempt for port recovery */
1589                 if (en_rn_msg)
1590                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1591                                         "2887 Reset Needed: Attempting Port "
1592                                         "Recovery...\n");
1593                 lpfc_offline_prep(phba, mbx_action);
1594                 lpfc_offline(phba);
1595                 /* release interrupt for possible resource change */
1596                 lpfc_sli4_disable_intr(phba);
1597                 lpfc_sli_brdrestart(phba);
1598                 /* request and enable interrupt */
1599                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1600                 if (intr_mode == LPFC_INTR_ERROR) {
1601                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1602                                         "3175 Failed to enable interrupt\n");
1603                         return -EIO;
1604                 } else {
1605                         phba->intr_mode = intr_mode;
1606                 }
1607                 rc = lpfc_online(phba);
1608                 if (rc == 0)
1609                         lpfc_unblock_mgmt_io(phba);
1610         }
1611         return rc;
1612 }
1613
1614 /**
1615  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1616  * @phba: pointer to lpfc hba data structure.
1617  *
1618  * This routine is invoked to handle the SLI4 HBA hardware error attention
1619  * conditions.
1620  **/
1621 static void
1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_vport *vport = phba->pport;
1625         uint32_t event_data;
1626         struct Scsi_Host *shost;
1627         uint32_t if_type;
1628         struct lpfc_register portstat_reg = {0};
1629         uint32_t reg_err1, reg_err2;
1630         uint32_t uerrlo_reg, uemasklo_reg;
1631         uint32_t pci_rd_rc1, pci_rd_rc2;
1632         bool en_rn_msg = true;
1633         struct temp_event temp_event_data;
1634         int rc;
1635
1636         /* If the pci channel is offline, ignore possible errors, since
1637          * we cannot communicate with the pci card anyway.
1638          */
1639         if (pci_channel_offline(phba->pcidev))
1640                 return;
1641
1642         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1643         switch (if_type) {
1644         case LPFC_SLI_INTF_IF_TYPE_0:
1645                 pci_rd_rc1 = lpfc_readl(
1646                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1647                                 &uerrlo_reg);
1648                 pci_rd_rc2 = lpfc_readl(
1649                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1650                                 &uemasklo_reg);
1651                 /* consider PCI bus read error as pci_channel_offline */
1652                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1653                         return;
1654                 lpfc_sli4_offline_eratt(phba);
1655                 break;
1656
1657         case LPFC_SLI_INTF_IF_TYPE_2:
1658                 pci_rd_rc1 = lpfc_readl(
1659                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660                                 &portstat_reg.word0);
1661                 /* consider PCI bus read error as pci_channel_offline */
1662                 if (pci_rd_rc1 == -EIO) {
1663                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664                                 "3151 PCI bus read access failure: x%x\n",
1665                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1666                         return;
1667                 }
1668                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "2889 Port Overtemperature event, "
1673                                 "taking port offline Data: x%x x%x\n",
1674                                 reg_err1, reg_err2);
1675
1676                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1677                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1678                         temp_event_data.data = 0xFFFFFFFF;
1679
1680                         shost = lpfc_shost_from_vport(phba->pport);
1681                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1682                                                   sizeof(temp_event_data),
1683                                                   (char *)&temp_event_data,
1684                                                   SCSI_NL_VID_TYPE_PCI
1685                                                   | PCI_VENDOR_ID_EMULEX);
1686
1687                         spin_lock_irq(&phba->hbalock);
1688                         phba->over_temp_state = HBA_OVER_TEMP;
1689                         spin_unlock_irq(&phba->hbalock);
1690                         lpfc_sli4_offline_eratt(phba);
1691                         return;
1692                 }
1693                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1694                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1695                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1696                                         "3143 Port Down: Firmware Update "
1697                                         "Detected\n");
1698                         en_rn_msg = false;
1699                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1700                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1701                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1702                                         "3144 Port Down: Debug Dump\n");
1703                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1704                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1705                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1706                                         "3145 Port Down: Provisioning\n");
1707
1708                 /* If resets are disabled then leave the HBA alone and return */
1709                 if (!phba->cfg_enable_hba_reset)
1710                         return;
1711
1712                 /* Check port status register for function reset */
1713                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1714                                 en_rn_msg);
1715                 if (rc == 0) {
1716                         /* don't report event on forced debug dump */
1717                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1718                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1719                                 return;
1720                         else
1721                                 break;
1722                 }
1723                 /* fall through for not able to recover */
1724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1725                                 "3152 Unrecoverable error, bring the port "
1726                                 "offline\n");
1727                 lpfc_sli4_offline_eratt(phba);
1728                 break;
1729         case LPFC_SLI_INTF_IF_TYPE_1:
1730         default:
1731                 break;
1732         }
1733         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1734                         "3123 Report dump event to upper layer\n");
1735         /* Send an internal error event to mgmt application */
1736         lpfc_board_errevt_to_mgmt(phba);
1737
1738         event_data = FC_REG_DUMP_EVENT;
1739         shost = lpfc_shost_from_vport(vport);
1740         fc_host_post_vendor_event(shost, fc_get_event_number(),
1741                                   sizeof(event_data), (char *) &event_data,
1742                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1743 }
1744
1745 /**
1746  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1747  * @phba: pointer to lpfc HBA data structure.
1748  *
1749  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1750  * routine from the API jump table function pointer from the lpfc_hba struct.
1751  *
1752  * Return codes
1753  *   0 - success.
1754  *   Any other value - error.
1755  **/
1756 void
1757 lpfc_handle_eratt(struct lpfc_hba *phba)
1758 {
1759         (*phba->lpfc_handle_eratt)(phba);
1760 }
1761
1762 /**
1763  * lpfc_handle_latt - The HBA link event handler
1764  * @phba: pointer to lpfc hba data structure.
1765  *
1766  * This routine is invoked from the worker thread to handle a HBA host
1767  * attention link event.
1768  **/
1769 void
1770 lpfc_handle_latt(struct lpfc_hba *phba)
1771 {
1772         struct lpfc_vport *vport = phba->pport;
1773         struct lpfc_sli   *psli = &phba->sli;
1774         LPFC_MBOXQ_t *pmb;
1775         volatile uint32_t control;
1776         struct lpfc_dmabuf *mp;
1777         int rc = 0;
1778
1779         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1780         if (!pmb) {
1781                 rc = 1;
1782                 goto lpfc_handle_latt_err_exit;
1783         }
1784
1785         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1786         if (!mp) {
1787                 rc = 2;
1788                 goto lpfc_handle_latt_free_pmb;
1789         }
1790
1791         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1792         if (!mp->virt) {
1793                 rc = 3;
1794                 goto lpfc_handle_latt_free_mp;
1795         }
1796
1797         /* Cleanup any outstanding ELS commands */
1798         lpfc_els_flush_all_cmd(phba);
1799
1800         psli->slistat.link_event++;
1801         lpfc_read_topology(phba, pmb, mp);
1802         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1803         pmb->vport = vport;
1804         /* Block ELS IOCBs until we have processed this mbox command */
1805         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1806         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1807         if (rc == MBX_NOT_FINISHED) {
1808                 rc = 4;
1809                 goto lpfc_handle_latt_free_mbuf;
1810         }
1811
1812         /* Clear Link Attention in HA REG */
1813         spin_lock_irq(&phba->hbalock);
1814         writel(HA_LATT, phba->HAregaddr);
1815         readl(phba->HAregaddr); /* flush */
1816         spin_unlock_irq(&phba->hbalock);
1817
1818         return;
1819
1820 lpfc_handle_latt_free_mbuf:
1821         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1822         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1823 lpfc_handle_latt_free_mp:
1824         kfree(mp);
1825 lpfc_handle_latt_free_pmb:
1826         mempool_free(pmb, phba->mbox_mem_pool);
1827 lpfc_handle_latt_err_exit:
1828         /* Enable Link attention interrupts */
1829         spin_lock_irq(&phba->hbalock);
1830         psli->sli_flag |= LPFC_PROCESS_LA;
1831         control = readl(phba->HCregaddr);
1832         control |= HC_LAINT_ENA;
1833         writel(control, phba->HCregaddr);
1834         readl(phba->HCregaddr); /* flush */
1835
1836         /* Clear Link Attention in HA REG */
1837         writel(HA_LATT, phba->HAregaddr);
1838         readl(phba->HAregaddr); /* flush */
1839         spin_unlock_irq(&phba->hbalock);
1840         lpfc_linkdown(phba);
1841         phba->link_state = LPFC_HBA_ERROR;
1842
1843         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1844                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1845
1846         return;
1847 }
1848
1849 /**
1850  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1851  * @phba: pointer to lpfc hba data structure.
1852  * @vpd: pointer to the vital product data.
1853  * @len: length of the vital product data in bytes.
1854  *
1855  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1856  * an array of characters. In this routine, the ModelName, ProgramType, and
1857  * ModelDesc, etc. fields of the phba data structure will be populated.
1858  *
1859  * Return codes
1860  *   0 - pointer to the VPD passed in is NULL
1861  *   1 - success
1862  **/
1863 int
1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1865 {
1866         uint8_t lenlo, lenhi;
1867         int Length;
1868         int i, j;
1869         int finished = 0;
1870         int index = 0;
1871
1872         if (!vpd)
1873                 return 0;
1874
1875         /* Vital Product */
1876         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1877                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1878                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1879                         (uint32_t) vpd[3]);
1880         while (!finished && (index < (len - 4))) {
1881                 switch (vpd[index]) {
1882                 case 0x82:
1883                 case 0x91:
1884                         index += 1;
1885                         lenlo = vpd[index];
1886                         index += 1;
1887                         lenhi = vpd[index];
1888                         index += 1;
1889                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1890                         index += i;
1891                         break;
1892                 case 0x90:
1893                         index += 1;
1894                         lenlo = vpd[index];
1895                         index += 1;
1896                         lenhi = vpd[index];
1897                         index += 1;
1898                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1899                         if (Length > len - index)
1900                                 Length = len - index;
1901                         while (Length > 0) {
1902                         /* Look for Serial Number */
1903                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1904                                 index += 2;
1905                                 i = vpd[index];
1906                                 index += 1;
1907                                 j = 0;
1908                                 Length -= (3+i);
1909                                 while(i--) {
1910                                         phba->SerialNumber[j++] = vpd[index++];
1911                                         if (j == 31)
1912                                                 break;
1913                                 }
1914                                 phba->SerialNumber[j] = 0;
1915                                 continue;
1916                         }
1917                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1918                                 phba->vpd_flag |= VPD_MODEL_DESC;
1919                                 index += 2;
1920                                 i = vpd[index];
1921                                 index += 1;
1922                                 j = 0;
1923                                 Length -= (3+i);
1924                                 while(i--) {
1925                                         phba->ModelDesc[j++] = vpd[index++];
1926                                         if (j == 255)
1927                                                 break;
1928                                 }
1929                                 phba->ModelDesc[j] = 0;
1930                                 continue;
1931                         }
1932                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1933                                 phba->vpd_flag |= VPD_MODEL_NAME;
1934                                 index += 2;
1935                                 i = vpd[index];
1936                                 index += 1;
1937                                 j = 0;
1938                                 Length -= (3+i);
1939                                 while(i--) {
1940                                         phba->ModelName[j++] = vpd[index++];
1941                                         if (j == 79)
1942                                                 break;
1943                                 }
1944                                 phba->ModelName[j] = 0;
1945                                 continue;
1946                         }
1947                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1948                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1949                                 index += 2;
1950                                 i = vpd[index];
1951                                 index += 1;
1952                                 j = 0;
1953                                 Length -= (3+i);
1954                                 while(i--) {
1955                                         phba->ProgramType[j++] = vpd[index++];
1956                                         if (j == 255)
1957                                                 break;
1958                                 }
1959                                 phba->ProgramType[j] = 0;
1960                                 continue;
1961                         }
1962                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1963                                 phba->vpd_flag |= VPD_PORT;
1964                                 index += 2;
1965                                 i = vpd[index];
1966                                 index += 1;
1967                                 j = 0;
1968                                 Length -= (3+i);
1969                                 while(i--) {
1970                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1971                                             (phba->sli4_hba.pport_name_sta ==
1972                                              LPFC_SLI4_PPNAME_GET)) {
1973                                                 j++;
1974                                                 index++;
1975                                         } else
1976                                                 phba->Port[j++] = vpd[index++];
1977                                         if (j == 19)
1978                                                 break;
1979                                 }
1980                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1981                                     (phba->sli4_hba.pport_name_sta ==
1982                                      LPFC_SLI4_PPNAME_NON))
1983                                         phba->Port[j] = 0;
1984                                 continue;
1985                         }
1986                         else {
1987                                 index += 2;
1988                                 i = vpd[index];
1989                                 index += 1;
1990                                 index += i;
1991                                 Length -= (3 + i);
1992                         }
1993                 }
1994                 finished = 0;
1995                 break;
1996                 case 0x78:
1997                         finished = 1;
1998                         break;
1999                 default:
2000                         index ++;
2001                         break;
2002                 }
2003         }
2004
2005         return(1);
2006 }
2007
2008 /**
2009  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2010  * @phba: pointer to lpfc hba data structure.
2011  * @mdp: pointer to the data structure to hold the derived model name.
2012  * @descp: pointer to the data structure to hold the derived description.
2013  *
2014  * This routine retrieves HBA's description based on its registered PCI device
2015  * ID. The @descp passed into this function points to an array of 256 chars. It
2016  * shall be returned with the model name, maximum speed, and the host bus type.
2017  * The @mdp passed into this function points to an array of 80 chars. When the
2018  * function returns, the @mdp will be filled with the model name.
2019  **/
2020 static void
2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2022 {
2023         lpfc_vpd_t *vp;
2024         uint16_t dev_id = phba->pcidev->device;
2025         int max_speed;
2026         int GE = 0;
2027         int oneConnect = 0; /* default is not a oneConnect */
2028         struct {
2029                 char *name;
2030                 char *bus;
2031                 char *function;
2032         } m = {"<Unknown>", "", ""};
2033
2034         if (mdp && mdp[0] != '\0'
2035                 && descp && descp[0] != '\0')
2036                 return;
2037
2038         if (phba->lmt & LMT_16Gb)
2039                 max_speed = 16;
2040         else if (phba->lmt & LMT_10Gb)
2041                 max_speed = 10;
2042         else if (phba->lmt & LMT_8Gb)
2043                 max_speed = 8;
2044         else if (phba->lmt & LMT_4Gb)
2045                 max_speed = 4;
2046         else if (phba->lmt & LMT_2Gb)
2047                 max_speed = 2;
2048         else if (phba->lmt & LMT_1Gb)
2049                 max_speed = 1;
2050         else
2051                 max_speed = 0;
2052
2053         vp = &phba->vpd;
2054
2055         switch (dev_id) {
2056         case PCI_DEVICE_ID_FIREFLY:
2057                 m = (typeof(m)){"LP6000", "PCI",
2058                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2059                 break;
2060         case PCI_DEVICE_ID_SUPERFLY:
2061                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2062                         m = (typeof(m)){"LP7000", "PCI", ""};
2063                 else
2064                         m = (typeof(m)){"LP7000E", "PCI", ""};
2065                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2066                 break;
2067         case PCI_DEVICE_ID_DRAGONFLY:
2068                 m = (typeof(m)){"LP8000", "PCI",
2069                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2070                 break;
2071         case PCI_DEVICE_ID_CENTAUR:
2072                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2073                         m = (typeof(m)){"LP9002", "PCI", ""};
2074                 else
2075                         m = (typeof(m)){"LP9000", "PCI", ""};
2076                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2077                 break;
2078         case PCI_DEVICE_ID_RFLY:
2079                 m = (typeof(m)){"LP952", "PCI",
2080                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2081                 break;
2082         case PCI_DEVICE_ID_PEGASUS:
2083                 m = (typeof(m)){"LP9802", "PCI-X",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_THOR:
2087                 m = (typeof(m)){"LP10000", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_VIPER:
2091                 m = (typeof(m)){"LPX1000",  "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_PFLY:
2095                 m = (typeof(m)){"LP982", "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_TFLY:
2099                 m = (typeof(m)){"LP1050", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_HELIOS:
2103                 m = (typeof(m)){"LP11000", "PCI-X2",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS_SCSP:
2107                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_DCSP:
2111                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_NEPTUNE:
2115                 m = (typeof(m)){"LPe1000", "PCIe",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2119                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2123                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_BMID:
2127                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2128                 break;
2129         case PCI_DEVICE_ID_BSMB:
2130                 m = (typeof(m)){"LP111", "PCI-X2",
2131                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_ZEPHYR:
2134                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2137                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2138                 break;
2139         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2140                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2141                 GE = 1;
2142                 break;
2143         case PCI_DEVICE_ID_ZMID:
2144                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2145                 break;
2146         case PCI_DEVICE_ID_ZSMB:
2147                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_LP101:
2150                 m = (typeof(m)){"LP101", "PCI-X",
2151                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP10000S:
2154                 m = (typeof(m)){"LP10000-S", "PCI",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP11000S:
2158                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LPE11000S:
2162                 m = (typeof(m)){"LPe11000-S", "PCIe",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_SAT:
2166                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2167                 break;
2168         case PCI_DEVICE_ID_SAT_MID:
2169                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_SAT_SMB:
2172                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2173                 break;
2174         case PCI_DEVICE_ID_SAT_DCSP:
2175                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2176                 break;
2177         case PCI_DEVICE_ID_SAT_SCSP:
2178                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2179                 break;
2180         case PCI_DEVICE_ID_SAT_S:
2181                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2182                 break;
2183         case PCI_DEVICE_ID_HORNET:
2184                 m = (typeof(m)){"LP21000", "PCIe",
2185                                 "Obsolete, Unsupported FCoE Adapter"};
2186                 GE = 1;
2187                 break;
2188         case PCI_DEVICE_ID_PROTEUS_VF:
2189                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2190                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_PF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_S:
2197                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_TIGERSHARK:
2201                 oneConnect = 1;
2202                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2203                 break;
2204         case PCI_DEVICE_ID_TOMCAT:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_FALCON:
2209                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2210                                 "EmulexSecure Fibre"};
2211                 break;
2212         case PCI_DEVICE_ID_BALIUS:
2213                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2214                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_LANCER_FC:
2217                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2218                 break;
2219         case PCI_DEVICE_ID_LANCER_FC_VF:
2220                 m = (typeof(m)){"LPe16000", "PCIe",
2221                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FCOE:
2224                 oneConnect = 1;
2225                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe",
2230                                 "Obsolete, Unsupported FCoE"};
2231                 break;
2232         case PCI_DEVICE_ID_SKYHAWK:
2233         case PCI_DEVICE_ID_SKYHAWK_VF:
2234                 oneConnect = 1;
2235                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2236                 break;
2237         default:
2238                 m = (typeof(m)){"Unknown", "", ""};
2239                 break;
2240         }
2241
2242         if (mdp && mdp[0] == '\0')
2243                 snprintf(mdp, 79,"%s", m.name);
2244         /*
2245          * oneConnect hba requires special processing, they are all initiators
2246          * and we put the port number on the end
2247          */
2248         if (descp && descp[0] == '\0') {
2249                 if (oneConnect)
2250                         snprintf(descp, 255,
2251                                 "Emulex OneConnect %s, %s Initiator %s",
2252                                 m.name, m.function,
2253                                 phba->Port);
2254                 else if (max_speed == 0)
2255                         snprintf(descp, 255,
2256                                 "Emulex %s %s %s ",
2257                                 m.name, m.bus, m.function);
2258                 else
2259                         snprintf(descp, 255,
2260                                 "Emulex %s %d%s %s %s",
2261                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2262                                 m.bus, m.function);
2263         }
2264 }
2265
2266 /**
2267  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2268  * @phba: pointer to lpfc hba data structure.
2269  * @pring: pointer to a IOCB ring.
2270  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2271  *
2272  * This routine posts a given number of IOCBs with the associated DMA buffer
2273  * descriptors specified by the cnt argument to the given IOCB ring.
2274  *
2275  * Return codes
2276  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2277  **/
2278 int
2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2280 {
2281         IOCB_t *icmd;
2282         struct lpfc_iocbq *iocb;
2283         struct lpfc_dmabuf *mp1, *mp2;
2284
2285         cnt += pring->missbufcnt;
2286
2287         /* While there are buffers to post */
2288         while (cnt > 0) {
2289                 /* Allocate buffer for  command iocb */
2290                 iocb = lpfc_sli_get_iocbq(phba);
2291                 if (iocb == NULL) {
2292                         pring->missbufcnt = cnt;
2293                         return cnt;
2294                 }
2295                 icmd = &iocb->iocb;
2296
2297                 /* 2 buffers can be posted per command */
2298                 /* Allocate buffer to post */
2299                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2300                 if (mp1)
2301                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2302                 if (!mp1 || !mp1->virt) {
2303                         kfree(mp1);
2304                         lpfc_sli_release_iocbq(phba, iocb);
2305                         pring->missbufcnt = cnt;
2306                         return cnt;
2307                 }
2308
2309                 INIT_LIST_HEAD(&mp1->list);
2310                 /* Allocate buffer to post */
2311                 if (cnt > 1) {
2312                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2313                         if (mp2)
2314                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2315                                                             &mp2->phys);
2316                         if (!mp2 || !mp2->virt) {
2317                                 kfree(mp2);
2318                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2319                                 kfree(mp1);
2320                                 lpfc_sli_release_iocbq(phba, iocb);
2321                                 pring->missbufcnt = cnt;
2322                                 return cnt;
2323                         }
2324
2325                         INIT_LIST_HEAD(&mp2->list);
2326                 } else {
2327                         mp2 = NULL;
2328                 }
2329
2330                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2331                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2332                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2333                 icmd->ulpBdeCount = 1;
2334                 cnt--;
2335                 if (mp2) {
2336                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2337                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2338                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2339                         cnt--;
2340                         icmd->ulpBdeCount = 2;
2341                 }
2342
2343                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2344                 icmd->ulpLe = 1;
2345
2346                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2347                     IOCB_ERROR) {
2348                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2349                         kfree(mp1);
2350                         cnt++;
2351                         if (mp2) {
2352                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2353                                 kfree(mp2);
2354                                 cnt++;
2355                         }
2356                         lpfc_sli_release_iocbq(phba, iocb);
2357                         pring->missbufcnt = cnt;
2358                         return cnt;
2359                 }
2360                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2361                 if (mp2)
2362                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2363         }
2364         pring->missbufcnt = 0;
2365         return 0;
2366 }
2367
2368 /**
2369  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2370  * @phba: pointer to lpfc hba data structure.
2371  *
2372  * This routine posts initial receive IOCB buffers to the ELS ring. The
2373  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2374  * set to 64 IOCBs.
2375  *
2376  * Return codes
2377  *   0 - success (currently always success)
2378  **/
2379 static int
2380 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2381 {
2382         struct lpfc_sli *psli = &phba->sli;
2383
2384         /* Ring 0, ELS / CT buffers */
2385         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2386         /* Ring 2 - FCP no buffers needed */
2387
2388         return 0;
2389 }
2390
2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2392
2393 /**
2394  * lpfc_sha_init - Set up initial array of hash table entries
2395  * @HashResultPointer: pointer to an array as hash table.
2396  *
2397  * This routine sets up the initial values to the array of hash table entries
2398  * for the LC HBAs.
2399  **/
2400 static void
2401 lpfc_sha_init(uint32_t * HashResultPointer)
2402 {
2403         HashResultPointer[0] = 0x67452301;
2404         HashResultPointer[1] = 0xEFCDAB89;
2405         HashResultPointer[2] = 0x98BADCFE;
2406         HashResultPointer[3] = 0x10325476;
2407         HashResultPointer[4] = 0xC3D2E1F0;
2408 }
2409
2410 /**
2411  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2412  * @HashResultPointer: pointer to an initial/result hash table.
2413  * @HashWorkingPointer: pointer to an working hash table.
2414  *
2415  * This routine iterates an initial hash table pointed by @HashResultPointer
2416  * with the values from the working hash table pointeed by @HashWorkingPointer.
2417  * The results are putting back to the initial hash table, returned through
2418  * the @HashResultPointer as the result hash table.
2419  **/
2420 static void
2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2422 {
2423         int t;
2424         uint32_t TEMP;
2425         uint32_t A, B, C, D, E;
2426         t = 16;
2427         do {
2428                 HashWorkingPointer[t] =
2429                     S(1,
2430                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2431                                                                      8] ^
2432                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2433         } while (++t <= 79);
2434         t = 0;
2435         A = HashResultPointer[0];
2436         B = HashResultPointer[1];
2437         C = HashResultPointer[2];
2438         D = HashResultPointer[3];
2439         E = HashResultPointer[4];
2440
2441         do {
2442                 if (t < 20) {
2443                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2444                 } else if (t < 40) {
2445                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2446                 } else if (t < 60) {
2447                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2448                 } else {
2449                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2450                 }
2451                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2452                 E = D;
2453                 D = C;
2454                 C = S(30, B);
2455                 B = A;
2456                 A = TEMP;
2457         } while (++t <= 79);
2458
2459         HashResultPointer[0] += A;
2460         HashResultPointer[1] += B;
2461         HashResultPointer[2] += C;
2462         HashResultPointer[3] += D;
2463         HashResultPointer[4] += E;
2464
2465 }
2466
2467 /**
2468  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2469  * @RandomChallenge: pointer to the entry of host challenge random number array.
2470  * @HashWorking: pointer to the entry of the working hash array.
2471  *
2472  * This routine calculates the working hash array referred by @HashWorking
2473  * from the challenge random numbers associated with the host, referred by
2474  * @RandomChallenge. The result is put into the entry of the working hash
2475  * array and returned by reference through @HashWorking.
2476  **/
2477 static void
2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2479 {
2480         *HashWorking = (*RandomChallenge ^ *HashWorking);
2481 }
2482
2483 /**
2484  * lpfc_hba_init - Perform special handling for LC HBA initialization
2485  * @phba: pointer to lpfc hba data structure.
2486  * @hbainit: pointer to an array of unsigned 32-bit integers.
2487  *
2488  * This routine performs the special handling for LC HBA initialization.
2489  **/
2490 void
2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2492 {
2493         int t;
2494         uint32_t *HashWorking;
2495         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2496
2497         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2498         if (!HashWorking)
2499                 return;
2500
2501         HashWorking[0] = HashWorking[78] = *pwwnn++;
2502         HashWorking[1] = HashWorking[79] = *pwwnn;
2503
2504         for (t = 0; t < 7; t++)
2505                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2506
2507         lpfc_sha_init(hbainit);
2508         lpfc_sha_iterate(hbainit, HashWorking);
2509         kfree(HashWorking);
2510 }
2511
2512 /**
2513  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2514  * @vport: pointer to a virtual N_Port data structure.
2515  *
2516  * This routine performs the necessary cleanups before deleting the @vport.
2517  * It invokes the discovery state machine to perform necessary state
2518  * transitions and to release the ndlps associated with the @vport. Note,
2519  * the physical port is treated as @vport 0.
2520  **/
2521 void
2522 lpfc_cleanup(struct lpfc_vport *vport)
2523 {
2524         struct lpfc_hba   *phba = vport->phba;
2525         struct lpfc_nodelist *ndlp, *next_ndlp;
2526         int i = 0;
2527
2528         if (phba->link_state > LPFC_LINK_DOWN)
2529                 lpfc_port_link_failure(vport);
2530
2531         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2532                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2533                         ndlp = lpfc_enable_node(vport, ndlp,
2534                                                 NLP_STE_UNUSED_NODE);
2535                         if (!ndlp)
2536                                 continue;
2537                         spin_lock_irq(&phba->ndlp_lock);
2538                         NLP_SET_FREE_REQ(ndlp);
2539                         spin_unlock_irq(&phba->ndlp_lock);
2540                         /* Trigger the release of the ndlp memory */
2541                         lpfc_nlp_put(ndlp);
2542                         continue;
2543                 }
2544                 spin_lock_irq(&phba->ndlp_lock);
2545                 if (NLP_CHK_FREE_REQ(ndlp)) {
2546                         /* The ndlp should not be in memory free mode already */
2547                         spin_unlock_irq(&phba->ndlp_lock);
2548                         continue;
2549                 } else
2550                         /* Indicate request for freeing ndlp memory */
2551                         NLP_SET_FREE_REQ(ndlp);
2552                 spin_unlock_irq(&phba->ndlp_lock);
2553
2554                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2555                     ndlp->nlp_DID == Fabric_DID) {
2556                         /* Just free up ndlp with Fabric_DID for vports */
2557                         lpfc_nlp_put(ndlp);
2558                         continue;
2559                 }
2560
2561                 /* take care of nodes in unused state before the state
2562                  * machine taking action.
2563                  */
2564                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2565                         lpfc_nlp_put(ndlp);
2566                         continue;
2567                 }
2568
2569                 if (ndlp->nlp_type & NLP_FABRIC)
2570                         lpfc_disc_state_machine(vport, ndlp, NULL,
2571                                         NLP_EVT_DEVICE_RECOVERY);
2572
2573                 lpfc_disc_state_machine(vport, ndlp, NULL,
2574                                              NLP_EVT_DEVICE_RM);
2575         }
2576
2577         /* At this point, ALL ndlp's should be gone
2578          * because of the previous NLP_EVT_DEVICE_RM.
2579          * Lets wait for this to happen, if needed.
2580          */
2581         while (!list_empty(&vport->fc_nodes)) {
2582                 if (i++ > 3000) {
2583                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2584                                 "0233 Nodelist not empty\n");
2585                         list_for_each_entry_safe(ndlp, next_ndlp,
2586                                                 &vport->fc_nodes, nlp_listp) {
2587                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2588                                                 LOG_NODE,
2589                                                 "0282 did:x%x ndlp:x%p "
2590                                                 "usgmap:x%x refcnt:%d\n",
2591                                                 ndlp->nlp_DID, (void *)ndlp,
2592                                                 ndlp->nlp_usg_map,
2593                                                 atomic_read(
2594                                                         &ndlp->kref.refcount));
2595                         }
2596                         break;
2597                 }
2598
2599                 /* Wait for any activity on ndlps to settle */
2600                 msleep(10);
2601         }
2602         lpfc_cleanup_vports_rrqs(vport, NULL);
2603 }
2604
2605 /**
2606  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2607  * @vport: pointer to a virtual N_Port data structure.
2608  *
2609  * This routine stops all the timers associated with a @vport. This function
2610  * is invoked before disabling or deleting a @vport. Note that the physical
2611  * port is treated as @vport 0.
2612  **/
2613 void
2614 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2615 {
2616         del_timer_sync(&vport->els_tmofunc);
2617         del_timer_sync(&vport->fc_fdmitmo);
2618         del_timer_sync(&vport->delayed_disc_tmo);
2619         lpfc_can_disctmo(vport);
2620         return;
2621 }
2622
2623 /**
2624  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2625  * @phba: pointer to lpfc hba data structure.
2626  *
2627  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2628  * caller of this routine should already hold the host lock.
2629  **/
2630 void
2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2632 {
2633         /* Clear pending FCF rediscovery wait flag */
2634         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2635
2636         /* Now, try to stop the timer */
2637         del_timer(&phba->fcf.redisc_wait);
2638 }
2639
2640 /**
2641  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2642  * @phba: pointer to lpfc hba data structure.
2643  *
2644  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2645  * checks whether the FCF rediscovery wait timer is pending with the host
2646  * lock held before proceeding with disabling the timer and clearing the
2647  * wait timer pendig flag.
2648  **/
2649 void
2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2651 {
2652         spin_lock_irq(&phba->hbalock);
2653         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2654                 /* FCF rediscovery timer already fired or stopped */
2655                 spin_unlock_irq(&phba->hbalock);
2656                 return;
2657         }
2658         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2659         /* Clear failover in progress flags */
2660         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2661         spin_unlock_irq(&phba->hbalock);
2662 }
2663
2664 /**
2665  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2666  * @phba: pointer to lpfc hba data structure.
2667  *
2668  * This routine stops all the timers associated with a HBA. This function is
2669  * invoked before either putting a HBA offline or unloading the driver.
2670  **/
2671 void
2672 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2673 {
2674         lpfc_stop_vport_timers(phba->pport);
2675         del_timer_sync(&phba->sli.mbox_tmo);
2676         del_timer_sync(&phba->fabric_block_timer);
2677         del_timer_sync(&phba->eratt_poll);
2678         del_timer_sync(&phba->hb_tmofunc);
2679         if (phba->sli_rev == LPFC_SLI_REV4) {
2680                 del_timer_sync(&phba->rrq_tmr);
2681                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2682         }
2683         phba->hb_outstanding = 0;
2684
2685         switch (phba->pci_dev_grp) {
2686         case LPFC_PCI_DEV_LP:
2687                 /* Stop any LightPulse device specific driver timers */
2688                 del_timer_sync(&phba->fcp_poll_timer);
2689                 break;
2690         case LPFC_PCI_DEV_OC:
2691                 /* Stop any OneConnect device sepcific driver timers */
2692                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2693                 break;
2694         default:
2695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2696                                 "0297 Invalid device group (x%x)\n",
2697                                 phba->pci_dev_grp);
2698                 break;
2699         }
2700         return;
2701 }
2702
2703 /**
2704  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2705  * @phba: pointer to lpfc hba data structure.
2706  *
2707  * This routine marks a HBA's management interface as blocked. Once the HBA's
2708  * management interface is marked as blocked, all the user space access to
2709  * the HBA, whether they are from sysfs interface or libdfc interface will
2710  * all be blocked. The HBA is set to block the management interface when the
2711  * driver prepares the HBA interface for online or offline.
2712  **/
2713 static void
2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2715 {
2716         unsigned long iflag;
2717         uint8_t actcmd = MBX_HEARTBEAT;
2718         unsigned long timeout;
2719
2720         spin_lock_irqsave(&phba->hbalock, iflag);
2721         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2722         spin_unlock_irqrestore(&phba->hbalock, iflag);
2723         if (mbx_action == LPFC_MBX_NO_WAIT)
2724                 return;
2725         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2726         spin_lock_irqsave(&phba->hbalock, iflag);
2727         if (phba->sli.mbox_active) {
2728                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2729                 /* Determine how long we might wait for the active mailbox
2730                  * command to be gracefully completed by firmware.
2731                  */
2732                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2733                                 phba->sli.mbox_active) * 1000) + jiffies;
2734         }
2735         spin_unlock_irqrestore(&phba->hbalock, iflag);
2736
2737         /* Wait for the outstnading mailbox command to complete */
2738         while (phba->sli.mbox_active) {
2739                 /* Check active mailbox complete status every 2ms */
2740                 msleep(2);
2741                 if (time_after(jiffies, timeout)) {
2742                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2743                                 "2813 Mgmt IO is Blocked %x "
2744                                 "- mbox cmd %x still active\n",
2745                                 phba->sli.sli_flag, actcmd);
2746                         break;
2747                 }
2748         }
2749 }
2750
2751 /**
2752  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2753  * @phba: pointer to lpfc hba data structure.
2754  *
2755  * Allocate RPIs for all active remote nodes. This is needed whenever
2756  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2757  * is to fixup the temporary rpi assignments.
2758  **/
2759 void
2760 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2761 {
2762         struct lpfc_nodelist  *ndlp, *next_ndlp;
2763         struct lpfc_vport **vports;
2764         int i;
2765
2766         if (phba->sli_rev != LPFC_SLI_REV4)
2767                 return;
2768
2769         vports = lpfc_create_vport_work_array(phba);
2770         if (vports != NULL) {
2771                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772                         if (vports[i]->load_flag & FC_UNLOADING)
2773                                 continue;
2774
2775                         list_for_each_entry_safe(ndlp, next_ndlp,
2776                                                  &vports[i]->fc_nodes,
2777                                                  nlp_listp) {
2778                                 if (NLP_CHK_NODE_ACT(ndlp))
2779                                         ndlp->nlp_rpi =
2780                                                 lpfc_sli4_alloc_rpi(phba);
2781                         }
2782                 }
2783         }
2784         lpfc_destroy_vport_work_array(phba, vports);
2785 }
2786
2787 /**
2788  * lpfc_online - Initialize and bring a HBA online
2789  * @phba: pointer to lpfc hba data structure.
2790  *
2791  * This routine initializes the HBA and brings a HBA online. During this
2792  * process, the management interface is blocked to prevent user space access
2793  * to the HBA interfering with the driver initialization.
2794  *
2795  * Return codes
2796  *   0 - successful
2797  *   1 - failed
2798  **/
2799 int
2800 lpfc_online(struct lpfc_hba *phba)
2801 {
2802         struct lpfc_vport *vport;
2803         struct lpfc_vport **vports;
2804         int i;
2805         bool vpis_cleared = false;
2806
2807         if (!phba)
2808                 return 0;
2809         vport = phba->pport;
2810
2811         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2812                 return 0;
2813
2814         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2815                         "0458 Bring Adapter online\n");
2816
2817         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2818
2819         if (!lpfc_sli_queue_setup(phba)) {
2820                 lpfc_unblock_mgmt_io(phba);
2821                 return 1;
2822         }
2823
2824         if (phba->sli_rev == LPFC_SLI_REV4) {
2825                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2826                         lpfc_unblock_mgmt_io(phba);
2827                         return 1;
2828                 }
2829                 spin_lock_irq(&phba->hbalock);
2830                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2831                         vpis_cleared = true;
2832                 spin_unlock_irq(&phba->hbalock);
2833         } else {
2834                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2835                         lpfc_unblock_mgmt_io(phba);
2836                         return 1;
2837                 }
2838         }
2839
2840         vports = lpfc_create_vport_work_array(phba);
2841         if (vports != NULL)
2842                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2843                         struct Scsi_Host *shost;
2844                         shost = lpfc_shost_from_vport(vports[i]);
2845                         spin_lock_irq(shost->host_lock);
2846                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2847                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2848                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2849                         if (phba->sli_rev == LPFC_SLI_REV4) {
2850                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2851                                 if ((vpis_cleared) &&
2852                                     (vports[i]->port_type !=
2853                                         LPFC_PHYSICAL_PORT))
2854                                         vports[i]->vpi = 0;
2855                         }
2856                         spin_unlock_irq(shost->host_lock);
2857                 }
2858                 lpfc_destroy_vport_work_array(phba, vports);
2859
2860         lpfc_unblock_mgmt_io(phba);
2861         return 0;
2862 }
2863
2864 /**
2865  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2866  * @phba: pointer to lpfc hba data structure.
2867  *
2868  * This routine marks a HBA's management interface as not blocked. Once the
2869  * HBA's management interface is marked as not blocked, all the user space
2870  * access to the HBA, whether they are from sysfs interface or libdfc
2871  * interface will be allowed. The HBA is set to block the management interface
2872  * when the driver prepares the HBA interface for online or offline and then
2873  * set to unblock the management interface afterwards.
2874  **/
2875 void
2876 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2877 {
2878         unsigned long iflag;
2879
2880         spin_lock_irqsave(&phba->hbalock, iflag);
2881         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2882         spin_unlock_irqrestore(&phba->hbalock, iflag);
2883 }
2884
2885 /**
2886  * lpfc_offline_prep - Prepare a HBA to be brought offline
2887  * @phba: pointer to lpfc hba data structure.
2888  *
2889  * This routine is invoked to prepare a HBA to be brought offline. It performs
2890  * unregistration login to all the nodes on all vports and flushes the mailbox
2891  * queue to make it ready to be brought offline.
2892  **/
2893 void
2894 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2895 {
2896         struct lpfc_vport *vport = phba->pport;
2897         struct lpfc_nodelist  *ndlp, *next_ndlp;
2898         struct lpfc_vport **vports;
2899         struct Scsi_Host *shost;
2900         int i;
2901
2902         if (vport->fc_flag & FC_OFFLINE_MODE)
2903                 return;
2904
2905         lpfc_block_mgmt_io(phba, mbx_action);
2906
2907         lpfc_linkdown(phba);
2908
2909         /* Issue an unreg_login to all nodes on all vports */
2910         vports = lpfc_create_vport_work_array(phba);
2911         if (vports != NULL) {
2912                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2913                         if (vports[i]->load_flag & FC_UNLOADING)
2914                                 continue;
2915                         shost = lpfc_shost_from_vport(vports[i]);
2916                         spin_lock_irq(shost->host_lock);
2917                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2918                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2919                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2920                         spin_unlock_irq(shost->host_lock);
2921
2922                         shost = lpfc_shost_from_vport(vports[i]);
2923                         list_for_each_entry_safe(ndlp, next_ndlp,
2924                                                  &vports[i]->fc_nodes,
2925                                                  nlp_listp) {
2926                                 if (!NLP_CHK_NODE_ACT(ndlp))
2927                                         continue;
2928                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2929                                         continue;
2930                                 if (ndlp->nlp_type & NLP_FABRIC) {
2931                                         lpfc_disc_state_machine(vports[i], ndlp,
2932                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2933                                         lpfc_disc_state_machine(vports[i], ndlp,
2934                                                 NULL, NLP_EVT_DEVICE_RM);
2935                                 }
2936                                 spin_lock_irq(shost->host_lock);
2937                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2938                                 spin_unlock_irq(shost->host_lock);
2939                                 /*
2940                                  * Whenever an SLI4 port goes offline, free the
2941                                  * RPI. Get a new RPI when the adapter port
2942                                  * comes back online.
2943                                  */
2944                                 if (phba->sli_rev == LPFC_SLI_REV4)
2945                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2946                                 lpfc_unreg_rpi(vports[i], ndlp);
2947                         }
2948                 }
2949         }
2950         lpfc_destroy_vport_work_array(phba, vports);
2951
2952         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2953 }
2954
2955 /**
2956  * lpfc_offline - Bring a HBA offline
2957  * @phba: pointer to lpfc hba data structure.
2958  *
2959  * This routine actually brings a HBA offline. It stops all the timers
2960  * associated with the HBA, brings down the SLI layer, and eventually
2961  * marks the HBA as in offline state for the upper layer protocol.
2962  **/
2963 void
2964 lpfc_offline(struct lpfc_hba *phba)
2965 {
2966         struct Scsi_Host  *shost;
2967         struct lpfc_vport **vports;
2968         int i;
2969
2970         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2971                 return;
2972
2973         /* stop port and all timers associated with this hba */
2974         lpfc_stop_port(phba);
2975         vports = lpfc_create_vport_work_array(phba);
2976         if (vports != NULL)
2977                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2978                         lpfc_stop_vport_timers(vports[i]);
2979         lpfc_destroy_vport_work_array(phba, vports);
2980         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2981                         "0460 Bring Adapter offline\n");
2982         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2983            now.  */
2984         lpfc_sli_hba_down(phba);
2985         spin_lock_irq(&phba->hbalock);
2986         phba->work_ha = 0;
2987         spin_unlock_irq(&phba->hbalock);
2988         vports = lpfc_create_vport_work_array(phba);
2989         if (vports != NULL)
2990                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2991                         shost = lpfc_shost_from_vport(vports[i]);
2992                         spin_lock_irq(shost->host_lock);
2993                         vports[i]->work_port_events = 0;
2994                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2995                         spin_unlock_irq(shost->host_lock);
2996                 }
2997         lpfc_destroy_vport_work_array(phba, vports);
2998 }
2999
3000 /**
3001  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3002  * @phba: pointer to lpfc hba data structure.
3003  *
3004  * This routine is to free all the SCSI buffers and IOCBs from the driver
3005  * list back to kernel. It is called from lpfc_pci_remove_one to free
3006  * the internal resources before the device is removed from the system.
3007  **/
3008 static void
3009 lpfc_scsi_free(struct lpfc_hba *phba)
3010 {
3011         struct lpfc_scsi_buf *sb, *sb_next;
3012         struct lpfc_iocbq *io, *io_next;
3013
3014         spin_lock_irq(&phba->hbalock);
3015
3016         /* Release all the lpfc_scsi_bufs maintained by this host. */
3017
3018         spin_lock(&phba->scsi_buf_list_put_lock);
3019         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3020                                  list) {
3021                 list_del(&sb->list);
3022                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3023                               sb->dma_handle);
3024                 kfree(sb);
3025                 phba->total_scsi_bufs--;
3026         }
3027         spin_unlock(&phba->scsi_buf_list_put_lock);
3028
3029         spin_lock(&phba->scsi_buf_list_get_lock);
3030         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3031                                  list) {
3032                 list_del(&sb->list);
3033                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3034                               sb->dma_handle);
3035                 kfree(sb);
3036                 phba->total_scsi_bufs--;
3037         }
3038         spin_unlock(&phba->scsi_buf_list_get_lock);
3039
3040         /* Release all the lpfc_iocbq entries maintained by this host. */
3041         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3042                 list_del(&io->list);
3043                 kfree(io);
3044                 phba->total_iocbq_bufs--;
3045         }
3046
3047         spin_unlock_irq(&phba->hbalock);
3048 }
3049
3050 /**
3051  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3052  * @phba: pointer to lpfc hba data structure.
3053  *
3054  * This routine first calculates the sizes of the current els and allocated
3055  * scsi sgl lists, and then goes through all sgls to updates the physical
3056  * XRIs assigned due to port function reset. During port initialization, the
3057  * current els and allocated scsi sgl lists are 0s.
3058  *
3059  * Return codes
3060  *   0 - successful (for now, it always returns 0)
3061  **/
3062 int
3063 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3064 {
3065         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3066         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3067         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3068         LIST_HEAD(els_sgl_list);
3069         LIST_HEAD(scsi_sgl_list);
3070         int rc;
3071         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3072
3073         /*
3074          * update on pci function's els xri-sgl list
3075          */
3076         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3077         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3078                 /* els xri-sgl expanded */
3079                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3080                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3081                                 "3157 ELS xri-sgl count increased from "
3082                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3083                                 els_xri_cnt);
3084                 /* allocate the additional els sgls */
3085                 for (i = 0; i < xri_cnt; i++) {
3086                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3087                                              GFP_KERNEL);
3088                         if (sglq_entry == NULL) {
3089                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3090                                                 "2562 Failure to allocate an "
3091                                                 "ELS sgl entry:%d\n", i);
3092                                 rc = -ENOMEM;
3093                                 goto out_free_mem;
3094                         }
3095                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3096                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3097                                                            &sglq_entry->phys);
3098                         if (sglq_entry->virt == NULL) {
3099                                 kfree(sglq_entry);
3100                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3101                                                 "2563 Failure to allocate an "
3102                                                 "ELS mbuf:%d\n", i);
3103                                 rc = -ENOMEM;
3104                                 goto out_free_mem;
3105                         }
3106                         sglq_entry->sgl = sglq_entry->virt;
3107                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3108                         sglq_entry->state = SGL_FREED;
3109                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3110                 }
3111                 spin_lock_irq(&phba->hbalock);
3112                 spin_lock(&pring->ring_lock);
3113                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3114                 spin_unlock(&pring->ring_lock);
3115                 spin_unlock_irq(&phba->hbalock);
3116         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3117                 /* els xri-sgl shrinked */
3118                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3119                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3120                                 "3158 ELS xri-sgl count decreased from "
3121                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3122                                 els_xri_cnt);
3123                 spin_lock_irq(&phba->hbalock);
3124                 spin_lock(&pring->ring_lock);
3125                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3126                 spin_unlock(&pring->ring_lock);
3127                 spin_unlock_irq(&phba->hbalock);
3128                 /* release extra els sgls from list */
3129                 for (i = 0; i < xri_cnt; i++) {
3130                         list_remove_head(&els_sgl_list,
3131                                          sglq_entry, struct lpfc_sglq, list);
3132                         if (sglq_entry) {
3133                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3134                                                sglq_entry->phys);
3135                                 kfree(sglq_entry);
3136                         }
3137                 }
3138                 spin_lock_irq(&phba->hbalock);
3139                 spin_lock(&pring->ring_lock);
3140                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3141                 spin_unlock(&pring->ring_lock);
3142                 spin_unlock_irq(&phba->hbalock);
3143         } else
3144                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3145                                 "3163 ELS xri-sgl count unchanged: %d\n",
3146                                 els_xri_cnt);
3147         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3148
3149         /* update xris to els sgls on the list */
3150         sglq_entry = NULL;
3151         sglq_entry_next = NULL;
3152         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3153                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3154                 lxri = lpfc_sli4_next_xritag(phba);
3155                 if (lxri == NO_XRI) {
3156                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3157                                         "2400 Failed to allocate xri for "
3158                                         "ELS sgl\n");
3159                         rc = -ENOMEM;
3160                         goto out_free_mem;
3161                 }
3162                 sglq_entry->sli4_lxritag = lxri;
3163                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3164         }
3165
3166         /*
3167          * update on pci function's allocated scsi xri-sgl list
3168          */
3169         phba->total_scsi_bufs = 0;
3170
3171         /* maximum number of xris available for scsi buffers */
3172         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3173                                       els_xri_cnt;
3174
3175         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3176                         "2401 Current allocated SCSI xri-sgl count:%d, "
3177                         "maximum  SCSI xri count:%d\n",
3178                         phba->sli4_hba.scsi_xri_cnt,
3179                         phba->sli4_hba.scsi_xri_max);
3180
3181         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3182         spin_lock(&phba->scsi_buf_list_put_lock);
3183         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3184         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3185         spin_unlock(&phba->scsi_buf_list_put_lock);
3186         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3187
3188         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3189                 /* max scsi xri shrinked below the allocated scsi buffers */
3190                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3191                                         phba->sli4_hba.scsi_xri_max;
3192                 /* release the extra allocated scsi buffers */
3193                 for (i = 0; i < scsi_xri_cnt; i++) {
3194                         list_remove_head(&scsi_sgl_list, psb,
3195                                          struct lpfc_scsi_buf, list);
3196                         if (psb) {
3197                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3198                                               psb->data, psb->dma_handle);
3199                                 kfree(psb);
3200                         }
3201                 }
3202                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3203                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3204                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3205         }
3206
3207         /* update xris associated to remaining allocated scsi buffers */
3208         psb = NULL;
3209         psb_next = NULL;
3210         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3211                 lxri = lpfc_sli4_next_xritag(phba);
3212                 if (lxri == NO_XRI) {
3213                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3214                                         "2560 Failed to allocate xri for "
3215                                         "scsi buffer\n");
3216                         rc = -ENOMEM;
3217                         goto out_free_mem;
3218                 }
3219                 psb->cur_iocbq.sli4_lxritag = lxri;
3220                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3221         }
3222         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3223         spin_lock(&phba->scsi_buf_list_put_lock);
3224         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3225         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3226         spin_unlock(&phba->scsi_buf_list_put_lock);
3227         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3228
3229         return 0;
3230
3231 out_free_mem:
3232         lpfc_free_els_sgl_list(phba);
3233         lpfc_scsi_free(phba);
3234         return rc;
3235 }
3236
3237 /**
3238  * lpfc_create_port - Create an FC port
3239  * @phba: pointer to lpfc hba data structure.
3240  * @instance: a unique integer ID to this FC port.
3241  * @dev: pointer to the device data structure.
3242  *
3243  * This routine creates a FC port for the upper layer protocol. The FC port
3244  * can be created on top of either a physical port or a virtual port provided
3245  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3246  * and associates the FC port created before adding the shost into the SCSI
3247  * layer.
3248  *
3249  * Return codes
3250  *   @vport - pointer to the virtual N_Port data structure.
3251  *   NULL - port create failed.
3252  **/
3253 struct lpfc_vport *
3254 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3255 {
3256         struct lpfc_vport *vport;
3257         struct Scsi_Host  *shost;
3258         int error = 0;
3259
3260         if (dev != &phba->pcidev->dev) {
3261                 shost = scsi_host_alloc(&lpfc_vport_template,
3262                                         sizeof(struct lpfc_vport));
3263         } else {
3264                 if (phba->sli_rev == LPFC_SLI_REV4)
3265                         shost = scsi_host_alloc(&lpfc_template,
3266                                         sizeof(struct lpfc_vport));
3267                 else
3268                         shost = scsi_host_alloc(&lpfc_template_s3,
3269                                         sizeof(struct lpfc_vport));
3270         }
3271         if (!shost)
3272                 goto out;
3273
3274         vport = (struct lpfc_vport *) shost->hostdata;
3275         vport->phba = phba;
3276         vport->load_flag |= FC_LOADING;
3277         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3278         vport->fc_rscn_flush = 0;
3279
3280         lpfc_get_vport_cfgparam(vport);
3281         shost->unique_id = instance;
3282         shost->max_id = LPFC_MAX_TARGET;
3283         shost->max_lun = vport->cfg_max_luns;
3284         shost->this_id = -1;
3285         shost->max_cmd_len = 16;
3286         if (phba->sli_rev == LPFC_SLI_REV4) {
3287                 shost->dma_boundary =
3288                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3289                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3290         }
3291
3292         /*
3293          * Set initial can_queue value since 0 is no longer supported and
3294          * scsi_add_host will fail. This will be adjusted later based on the
3295          * max xri value determined in hba setup.
3296          */
3297         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3298         if (dev != &phba->pcidev->dev) {
3299                 shost->transportt = lpfc_vport_transport_template;
3300                 vport->port_type = LPFC_NPIV_PORT;
3301         } else {
3302                 shost->transportt = lpfc_transport_template;
3303                 vport->port_type = LPFC_PHYSICAL_PORT;
3304         }
3305
3306         /* Initialize all internally managed lists. */
3307         INIT_LIST_HEAD(&vport->fc_nodes);
3308         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3309         spin_lock_init(&vport->work_port_lock);
3310
3311         init_timer(&vport->fc_disctmo);
3312         vport->fc_disctmo.function = lpfc_disc_timeout;
3313         vport->fc_disctmo.data = (unsigned long)vport;
3314
3315         init_timer(&vport->fc_fdmitmo);
3316         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3317         vport->fc_fdmitmo.data = (unsigned long)vport;
3318
3319         init_timer(&vport->els_tmofunc);
3320         vport->els_tmofunc.function = lpfc_els_timeout;
3321         vport->els_tmofunc.data = (unsigned long)vport;
3322
3323         init_timer(&vport->delayed_disc_tmo);
3324         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3325         vport->delayed_disc_tmo.data = (unsigned long)vport;
3326
3327         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3328         if (error)
3329                 goto out_put_shost;
3330
3331         spin_lock_irq(&phba->hbalock);
3332         list_add_tail(&vport->listentry, &phba->port_list);
3333         spin_unlock_irq(&phba->hbalock);
3334         return vport;
3335
3336 out_put_shost:
3337         scsi_host_put(shost);
3338 out:
3339         return NULL;
3340 }
3341
3342 /**
3343  * destroy_port -  destroy an FC port
3344  * @vport: pointer to an lpfc virtual N_Port data structure.
3345  *
3346  * This routine destroys a FC port from the upper layer protocol. All the
3347  * resources associated with the port are released.
3348  **/
3349 void
3350 destroy_port(struct lpfc_vport *vport)
3351 {
3352         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3353         struct lpfc_hba  *phba = vport->phba;
3354
3355         lpfc_debugfs_terminate(vport);
3356         fc_remove_host(shost);
3357         scsi_remove_host(shost);
3358
3359         spin_lock_irq(&phba->hbalock);
3360         list_del_init(&vport->listentry);
3361         spin_unlock_irq(&phba->hbalock);
3362
3363         lpfc_cleanup(vport);
3364         return;
3365 }
3366
3367 /**
3368  * lpfc_get_instance - Get a unique integer ID
3369  *
3370  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3371  * uses the kernel idr facility to perform the task.
3372  *
3373  * Return codes:
3374  *   instance - a unique integer ID allocated as the new instance.
3375  *   -1 - lpfc get instance failed.
3376  **/
3377 int
3378 lpfc_get_instance(void)
3379 {
3380         int ret;
3381
3382         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3383         return ret < 0 ? -1 : ret;
3384 }
3385
3386 /**
3387  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3388  * @shost: pointer to SCSI host data structure.
3389  * @time: elapsed time of the scan in jiffies.
3390  *
3391  * This routine is called by the SCSI layer with a SCSI host to determine
3392  * whether the scan host is finished.
3393  *
3394  * Note: there is no scan_start function as adapter initialization will have
3395  * asynchronously kicked off the link initialization.
3396  *
3397  * Return codes
3398  *   0 - SCSI host scan is not over yet.
3399  *   1 - SCSI host scan is over.
3400  **/
3401 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3402 {
3403         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3404         struct lpfc_hba   *phba = vport->phba;
3405         int stat = 0;
3406
3407         spin_lock_irq(shost->host_lock);
3408
3409         if (vport->load_flag & FC_UNLOADING) {
3410                 stat = 1;
3411                 goto finished;
3412         }
3413         if (time >= msecs_to_jiffies(30 * 1000)) {
3414                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3415                                 "0461 Scanning longer than 30 "
3416                                 "seconds.  Continuing initialization\n");
3417                 stat = 1;
3418                 goto finished;
3419         }
3420         if (time >= msecs_to_jiffies(15 * 1000) &&
3421             phba->link_state <= LPFC_LINK_DOWN) {
3422                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3423                                 "0465 Link down longer than 15 "
3424                                 "seconds.  Continuing initialization\n");
3425                 stat = 1;
3426                 goto finished;
3427         }
3428
3429         if (vport->port_state != LPFC_VPORT_READY)
3430                 goto finished;
3431         if (vport->num_disc_nodes || vport->fc_prli_sent)
3432                 goto finished;
3433         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3434                 goto finished;
3435         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3436                 goto finished;
3437
3438         stat = 1;
3439
3440 finished:
3441         spin_unlock_irq(shost->host_lock);
3442         return stat;
3443 }
3444
3445 /**
3446  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3447  * @shost: pointer to SCSI host data structure.
3448  *
3449  * This routine initializes a given SCSI host attributes on a FC port. The
3450  * SCSI host can be either on top of a physical port or a virtual port.
3451  **/
3452 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3453 {
3454         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3455         struct lpfc_hba   *phba = vport->phba;
3456         /*
3457          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3458          */
3459
3460         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3461         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3462         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3463
3464         memset(fc_host_supported_fc4s(shost), 0,
3465                sizeof(fc_host_supported_fc4s(shost)));
3466         fc_host_supported_fc4s(shost)[2] = 1;
3467         fc_host_supported_fc4s(shost)[7] = 1;
3468
3469         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3470                                  sizeof fc_host_symbolic_name(shost));
3471
3472         fc_host_supported_speeds(shost) = 0;
3473         if (phba->lmt & LMT_16Gb)
3474                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3475         if (phba->lmt & LMT_10Gb)
3476                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3477         if (phba->lmt & LMT_8Gb)
3478                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3479         if (phba->lmt & LMT_4Gb)
3480                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3481         if (phba->lmt & LMT_2Gb)
3482                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3483         if (phba->lmt & LMT_1Gb)
3484                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3485
3486         fc_host_maxframe_size(shost) =
3487                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3488                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3489
3490         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3491
3492         /* This value is also unchanging */
3493         memset(fc_host_active_fc4s(shost), 0,
3494                sizeof(fc_host_active_fc4s(shost)));
3495         fc_host_active_fc4s(shost)[2] = 1;
3496         fc_host_active_fc4s(shost)[7] = 1;
3497
3498         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3499         spin_lock_irq(shost->host_lock);
3500         vport->load_flag &= ~FC_LOADING;
3501         spin_unlock_irq(shost->host_lock);
3502 }
3503
3504 /**
3505  * lpfc_stop_port_s3 - Stop SLI3 device port
3506  * @phba: pointer to lpfc hba data structure.
3507  *
3508  * This routine is invoked to stop an SLI3 device port, it stops the device
3509  * from generating interrupts and stops the device driver's timers for the
3510  * device.
3511  **/
3512 static void
3513 lpfc_stop_port_s3(struct lpfc_hba *phba)
3514 {
3515         /* Clear all interrupt enable conditions */
3516         writel(0, phba->HCregaddr);
3517         readl(phba->HCregaddr); /* flush */
3518         /* Clear all pending interrupts */
3519         writel(0xffffffff, phba->HAregaddr);
3520         readl(phba->HAregaddr); /* flush */
3521
3522         /* Reset some HBA SLI setup states */
3523         lpfc_stop_hba_timers(phba);
3524         phba->pport->work_port_events = 0;
3525 }
3526
3527 /**
3528  * lpfc_stop_port_s4 - Stop SLI4 device port
3529  * @phba: pointer to lpfc hba data structure.
3530  *
3531  * This routine is invoked to stop an SLI4 device port, it stops the device
3532  * from generating interrupts and stops the device driver's timers for the
3533  * device.
3534  **/
3535 static void
3536 lpfc_stop_port_s4(struct lpfc_hba *phba)
3537 {
3538         /* Reset some HBA SLI4 setup states */
3539         lpfc_stop_hba_timers(phba);
3540         phba->pport->work_port_events = 0;
3541         phba->sli4_hba.intr_enable = 0;
3542 }
3543
3544 /**
3545  * lpfc_stop_port - Wrapper function for stopping hba port
3546  * @phba: Pointer to HBA context object.
3547  *
3548  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3549  * the API jump table function pointer from the lpfc_hba struct.
3550  **/
3551 void
3552 lpfc_stop_port(struct lpfc_hba *phba)
3553 {
3554         phba->lpfc_stop_port(phba);
3555 }
3556
3557 /**
3558  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3559  * @phba: Pointer to hba for which this call is being executed.
3560  *
3561  * This routine starts the timer waiting for the FCF rediscovery to complete.
3562  **/
3563 void
3564 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3565 {
3566         unsigned long fcf_redisc_wait_tmo =
3567                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3568         /* Start fcf rediscovery wait period timer */
3569         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3570         spin_lock_irq(&phba->hbalock);
3571         /* Allow action to new fcf asynchronous event */
3572         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3573         /* Mark the FCF rediscovery pending state */
3574         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3575         spin_unlock_irq(&phba->hbalock);
3576 }
3577
3578 /**
3579  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3580  * @ptr: Map to lpfc_hba data structure pointer.
3581  *
3582  * This routine is invoked when waiting for FCF table rediscover has been
3583  * timed out. If new FCF record(s) has (have) been discovered during the
3584  * wait period, a new FCF event shall be added to the FCOE async event
3585  * list, and then worker thread shall be waked up for processing from the
3586  * worker thread context.
3587  **/
3588 static void
3589 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3590 {
3591         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3592
3593         /* Don't send FCF rediscovery event if timer cancelled */
3594         spin_lock_irq(&phba->hbalock);
3595         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3596                 spin_unlock_irq(&phba->hbalock);
3597                 return;
3598         }
3599         /* Clear FCF rediscovery timer pending flag */
3600         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3601         /* FCF rediscovery event to worker thread */
3602         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3603         spin_unlock_irq(&phba->hbalock);
3604         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3605                         "2776 FCF rediscover quiescent timer expired\n");
3606         /* wake up worker thread */
3607         lpfc_worker_wake_up(phba);
3608 }
3609
3610 /**
3611  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3612  * @phba: pointer to lpfc hba data structure.
3613  * @acqe_link: pointer to the async link completion queue entry.
3614  *
3615  * This routine is to parse the SLI4 link-attention link fault code and
3616  * translate it into the base driver's read link attention mailbox command
3617  * status.
3618  *
3619  * Return: Link-attention status in terms of base driver's coding.
3620  **/
3621 static uint16_t
3622 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3623                            struct lpfc_acqe_link *acqe_link)
3624 {
3625         uint16_t latt_fault;
3626
3627         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3628         case LPFC_ASYNC_LINK_FAULT_NONE:
3629         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3630         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3631                 latt_fault = 0;
3632                 break;
3633         default:
3634                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3635                                 "0398 Invalid link fault code: x%x\n",
3636                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3637                 latt_fault = MBXERR_ERROR;
3638                 break;
3639         }
3640         return latt_fault;
3641 }
3642
3643 /**
3644  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3645  * @phba: pointer to lpfc hba data structure.
3646  * @acqe_link: pointer to the async link completion queue entry.
3647  *
3648  * This routine is to parse the SLI4 link attention type and translate it
3649  * into the base driver's link attention type coding.
3650  *
3651  * Return: Link attention type in terms of base driver's coding.
3652  **/
3653 static uint8_t
3654 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3655                           struct lpfc_acqe_link *acqe_link)
3656 {
3657         uint8_t att_type;
3658
3659         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3660         case LPFC_ASYNC_LINK_STATUS_DOWN:
3661         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3662                 att_type = LPFC_ATT_LINK_DOWN;
3663                 break;
3664         case LPFC_ASYNC_LINK_STATUS_UP:
3665                 /* Ignore physical link up events - wait for logical link up */
3666                 att_type = LPFC_ATT_RESERVED;
3667                 break;
3668         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3669                 att_type = LPFC_ATT_LINK_UP;
3670                 break;
3671         default:
3672                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3673                                 "0399 Invalid link attention type: x%x\n",
3674                                 bf_get(lpfc_acqe_link_status, acqe_link));
3675                 att_type = LPFC_ATT_RESERVED;
3676                 break;
3677         }
3678         return att_type;
3679 }
3680
3681 /**
3682  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3683  * @phba: pointer to lpfc hba data structure.
3684  * @acqe_link: pointer to the async link completion queue entry.
3685  *
3686  * This routine is to parse the SLI4 link-attention link speed and translate
3687  * it into the base driver's link-attention link speed coding.
3688  *
3689  * Return: Link-attention link speed in terms of base driver's coding.
3690  **/
3691 static uint8_t
3692 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3693                                 struct lpfc_acqe_link *acqe_link)
3694 {
3695         uint8_t link_speed;
3696
3697         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3698         case LPFC_ASYNC_LINK_SPEED_ZERO:
3699         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3700         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3701                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3702                 break;
3703         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3704                 link_speed = LPFC_LINK_SPEED_1GHZ;
3705                 break;
3706         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3707                 link_speed = LPFC_LINK_SPEED_10GHZ;
3708                 break;
3709         case LPFC_ASYNC_LINK_SPEED_20GBPS:
3710         case LPFC_ASYNC_LINK_SPEED_25GBPS:
3711         case LPFC_ASYNC_LINK_SPEED_40GBPS:
3712                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3713                 break;
3714         default:
3715                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3716                                 "0483 Invalid link-attention link speed: x%x\n",
3717                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3718                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3719                 break;
3720         }
3721         return link_speed;
3722 }
3723
3724 /**
3725  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3726  * @phba: pointer to lpfc hba data structure.
3727  *
3728  * This routine is to get an SLI3 FC port's link speed in Mbps.
3729  *
3730  * Return: link speed in terms of Mbps.
3731  **/
3732 uint32_t
3733 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3734 {
3735         uint32_t link_speed;
3736
3737         if (!lpfc_is_link_up(phba))
3738                 return 0;
3739
3740         switch (phba->fc_linkspeed) {
3741         case LPFC_LINK_SPEED_1GHZ:
3742                 link_speed = 1000;
3743                 break;
3744         case LPFC_LINK_SPEED_2GHZ:
3745                 link_speed = 2000;
3746                 break;
3747         case LPFC_LINK_SPEED_4GHZ:
3748                 link_speed = 4000;
3749                 break;
3750         case LPFC_LINK_SPEED_8GHZ:
3751                 link_speed = 8000;
3752                 break;
3753         case LPFC_LINK_SPEED_10GHZ:
3754                 link_speed = 10000;
3755                 break;
3756         case LPFC_LINK_SPEED_16GHZ:
3757                 link_speed = 16000;
3758                 break;
3759         default:
3760                 link_speed = 0;
3761         }
3762         return link_speed;
3763 }
3764
3765 /**
3766  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3767  * @phba: pointer to lpfc hba data structure.
3768  * @evt_code: asynchronous event code.
3769  * @speed_code: asynchronous event link speed code.
3770  *
3771  * This routine is to parse the giving SLI4 async event link speed code into
3772  * value of Mbps for the link speed.
3773  *
3774  * Return: link speed in terms of Mbps.
3775  **/
3776 static uint32_t
3777 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3778                            uint8_t speed_code)
3779 {
3780         uint32_t port_speed;
3781
3782         switch (evt_code) {
3783         case LPFC_TRAILER_CODE_LINK:
3784                 switch (speed_code) {
3785                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3786                         port_speed = 0;
3787                         break;
3788                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3789                         port_speed = 10;
3790                         break;
3791                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3792                         port_speed = 100;
3793                         break;
3794                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3795                         port_speed = 1000;
3796                         break;
3797                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3798                         port_speed = 10000;
3799                         break;
3800                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3801                         port_speed = 20000;
3802                         break;
3803                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3804                         port_speed = 25000;
3805                         break;
3806                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3807                         port_speed = 40000;
3808                         break;
3809                 default:
3810                         port_speed = 0;
3811                 }
3812                 break;
3813         case LPFC_TRAILER_CODE_FC:
3814                 switch (speed_code) {
3815                 case LPFC_FC_LA_SPEED_UNKNOWN:
3816                         port_speed = 0;
3817                         break;
3818                 case LPFC_FC_LA_SPEED_1G:
3819                         port_speed = 1000;
3820                         break;
3821                 case LPFC_FC_LA_SPEED_2G:
3822                         port_speed = 2000;
3823                         break;
3824                 case LPFC_FC_LA_SPEED_4G:
3825                         port_speed = 4000;
3826                         break;
3827                 case LPFC_FC_LA_SPEED_8G:
3828                         port_speed = 8000;
3829                         break;
3830                 case LPFC_FC_LA_SPEED_10G:
3831                         port_speed = 10000;
3832                         break;
3833                 case LPFC_FC_LA_SPEED_16G:
3834                         port_speed = 16000;
3835                         break;
3836                 default:
3837                         port_speed = 0;
3838                 }
3839                 break;
3840         default:
3841                 port_speed = 0;
3842         }
3843         return port_speed;
3844 }
3845
3846 /**
3847  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3848  * @phba: pointer to lpfc hba data structure.
3849  * @acqe_link: pointer to the async link completion queue entry.
3850  *
3851  * This routine is to handle the SLI4 asynchronous FCoE link event.
3852  **/
3853 static void
3854 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3855                          struct lpfc_acqe_link *acqe_link)
3856 {
3857         struct lpfc_dmabuf *mp;
3858         LPFC_MBOXQ_t *pmb;
3859         MAILBOX_t *mb;
3860         struct lpfc_mbx_read_top *la;
3861         uint8_t att_type;
3862         int rc;
3863
3864         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3865         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3866                 return;
3867         phba->fcoe_eventtag = acqe_link->event_tag;
3868         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3869         if (!pmb) {
3870                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3871                                 "0395 The mboxq allocation failed\n");
3872                 return;
3873         }
3874         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3875         if (!mp) {
3876                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3877                                 "0396 The lpfc_dmabuf allocation failed\n");
3878                 goto out_free_pmb;
3879         }
3880         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3881         if (!mp->virt) {
3882                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3883                                 "0397 The mbuf allocation failed\n");
3884                 goto out_free_dmabuf;
3885         }
3886
3887         /* Cleanup any outstanding ELS commands */
3888         lpfc_els_flush_all_cmd(phba);
3889
3890         /* Block ELS IOCBs until we have done process link event */
3891         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3892
3893         /* Update link event statistics */
3894         phba->sli.slistat.link_event++;
3895
3896         /* Create lpfc_handle_latt mailbox command from link ACQE */
3897         lpfc_read_topology(phba, pmb, mp);
3898         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3899         pmb->vport = phba->pport;
3900
3901         /* Keep the link status for extra SLI4 state machine reference */
3902         phba->sli4_hba.link_state.speed =
3903                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3904                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3905         phba->sli4_hba.link_state.duplex =
3906                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3907         phba->sli4_hba.link_state.status =
3908                                 bf_get(lpfc_acqe_link_status, acqe_link);
3909         phba->sli4_hba.link_state.type =
3910                                 bf_get(lpfc_acqe_link_type, acqe_link);
3911         phba->sli4_hba.link_state.number =
3912                                 bf_get(lpfc_acqe_link_number, acqe_link);
3913         phba->sli4_hba.link_state.fault =
3914                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3915         phba->sli4_hba.link_state.logical_speed =
3916                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3917
3918         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3919                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3920                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3921                         "Logical speed:%dMbps Fault:%d\n",
3922                         phba->sli4_hba.link_state.speed,
3923                         phba->sli4_hba.link_state.topology,
3924                         phba->sli4_hba.link_state.status,
3925                         phba->sli4_hba.link_state.type,
3926                         phba->sli4_hba.link_state.number,
3927                         phba->sli4_hba.link_state.logical_speed,
3928                         phba->sli4_hba.link_state.fault);
3929         /*
3930          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3931          * topology info. Note: Optional for non FC-AL ports.
3932          */
3933         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3934                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3935                 if (rc == MBX_NOT_FINISHED)
3936                         goto out_free_dmabuf;
3937                 return;
3938         }
3939         /*
3940          * For FCoE Mode: fill in all the topology information we need and call
3941          * the READ_TOPOLOGY completion routine to continue without actually
3942          * sending the READ_TOPOLOGY mailbox command to the port.
3943          */
3944         /* Parse and translate status field */
3945         mb = &pmb->u.mb;
3946         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3947
3948         /* Parse and translate link attention fields */
3949         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3950         la->eventTag = acqe_link->event_tag;
3951         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3952         bf_set(lpfc_mbx_read_top_link_spd, la,
3953                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3954
3955         /* Fake the the following irrelvant fields */
3956         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3957         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3958         bf_set(lpfc_mbx_read_top_il, la, 0);
3959         bf_set(lpfc_mbx_read_top_pb, la, 0);
3960         bf_set(lpfc_mbx_read_top_fa, la, 0);
3961         bf_set(lpfc_mbx_read_top_mm, la, 0);
3962
3963         /* Invoke the lpfc_handle_latt mailbox command callback function */
3964         lpfc_mbx_cmpl_read_topology(phba, pmb);
3965
3966         return;
3967
3968 out_free_dmabuf:
3969         kfree(mp);
3970 out_free_pmb:
3971         mempool_free(pmb, phba->mbox_mem_pool);
3972 }
3973
3974 /**
3975  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3976  * @phba: pointer to lpfc hba data structure.
3977  * @acqe_fc: pointer to the async fc completion queue entry.
3978  *
3979  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3980  * that the event was received and then issue a read_topology mailbox command so
3981  * that the rest of the driver will treat it the same as SLI3.
3982  **/
3983 static void
3984 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3985 {
3986         struct lpfc_dmabuf *mp;
3987         LPFC_MBOXQ_t *pmb;
3988         int rc;
3989
3990         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3991             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3992                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3993                                 "2895 Non FC link Event detected.(%d)\n",
3994                                 bf_get(lpfc_trailer_type, acqe_fc));
3995                 return;
3996         }
3997         /* Keep the link status for extra SLI4 state machine reference */
3998         phba->sli4_hba.link_state.speed =
3999                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4000                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4001         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4002         phba->sli4_hba.link_state.topology =
4003                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4004         phba->sli4_hba.link_state.status =
4005                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4006         phba->sli4_hba.link_state.type =
4007                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4008         phba->sli4_hba.link_state.number =
4009                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4010         phba->sli4_hba.link_state.fault =
4011                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4012         phba->sli4_hba.link_state.logical_speed =
4013                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4014         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4015                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4016                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4017                         "%dMbps Fault:%d\n",
4018                         phba->sli4_hba.link_state.speed,
4019                         phba->sli4_hba.link_state.topology,
4020                         phba->sli4_hba.link_state.status,
4021                         phba->sli4_hba.link_state.type,
4022                         phba->sli4_hba.link_state.number,
4023                         phba->sli4_hba.link_state.logical_speed,
4024                         phba->sli4_hba.link_state.fault);
4025         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4026         if (!pmb) {
4027                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4028                                 "2897 The mboxq allocation failed\n");
4029                 return;
4030         }
4031         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4032         if (!mp) {
4033                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4034                                 "2898 The lpfc_dmabuf allocation failed\n");
4035                 goto out_free_pmb;
4036         }
4037         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4038         if (!mp->virt) {
4039                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4040                                 "2899 The mbuf allocation failed\n");
4041                 goto out_free_dmabuf;
4042         }
4043
4044         /* Cleanup any outstanding ELS commands */
4045         lpfc_els_flush_all_cmd(phba);
4046
4047         /* Block ELS IOCBs until we have done process link event */
4048         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4049
4050         /* Update link event statistics */
4051         phba->sli.slistat.link_event++;
4052
4053         /* Create lpfc_handle_latt mailbox command from link ACQE */
4054         lpfc_read_topology(phba, pmb, mp);
4055         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4056         pmb->vport = phba->pport;
4057
4058         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4059         if (rc == MBX_NOT_FINISHED)
4060                 goto out_free_dmabuf;
4061         return;
4062
4063 out_free_dmabuf:
4064         kfree(mp);
4065 out_free_pmb:
4066         mempool_free(pmb, phba->mbox_mem_pool);
4067 }
4068
4069 /**
4070  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4071  * @phba: pointer to lpfc hba data structure.
4072  * @acqe_fc: pointer to the async SLI completion queue entry.
4073  *
4074  * This routine is to handle the SLI4 asynchronous SLI events.
4075  **/
4076 static void
4077 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4078 {
4079         char port_name;
4080         char message[128];
4081         uint8_t status;
4082         uint8_t evt_type;
4083         struct temp_event temp_event_data;
4084         struct lpfc_acqe_misconfigured_event *misconfigured;
4085         struct Scsi_Host  *shost;
4086
4087         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4088
4089         /* Special case Lancer */
4090         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4091                  LPFC_SLI_INTF_IF_TYPE_2) {
4092                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4093                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4094                                 "x%08x SLI Event Type:%d\n",
4095                                 acqe_sli->event_data1, acqe_sli->event_data2,
4096                                 evt_type);
4097                 return;
4098         }
4099
4100         port_name = phba->Port[0];
4101         if (port_name == 0x00)
4102                 port_name = '?'; /* get port name is empty */
4103
4104         switch (evt_type) {
4105         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4106                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4107                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4108                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4109
4110                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4111                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4112                                 acqe_sli->event_data1, port_name);
4113
4114                 shost = lpfc_shost_from_vport(phba->pport);
4115                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4116                                           sizeof(temp_event_data),
4117                                           (char *)&temp_event_data,
4118                                           SCSI_NL_VID_TYPE_PCI
4119                                           | PCI_VENDOR_ID_EMULEX);
4120                 break;
4121         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4122                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4123                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4124                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4125
4126                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4127                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4128                                 acqe_sli->event_data1, port_name);
4129
4130                 shost = lpfc_shost_from_vport(phba->pport);
4131                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4132                                           sizeof(temp_event_data),
4133                                           (char *)&temp_event_data,
4134                                           SCSI_NL_VID_TYPE_PCI
4135                                           | PCI_VENDOR_ID_EMULEX);
4136                 break;
4137         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4138                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4139                                         &acqe_sli->event_data1;
4140
4141                 /* fetch the status for this port */
4142                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4143                 case LPFC_LINK_NUMBER_0:
4144                         status = bf_get(lpfc_sli_misconfigured_port0,
4145                                         &misconfigured->theEvent);
4146                         break;
4147                 case LPFC_LINK_NUMBER_1:
4148                         status = bf_get(lpfc_sli_misconfigured_port1,
4149                                         &misconfigured->theEvent);
4150                         break;
4151                 case LPFC_LINK_NUMBER_2:
4152                         status = bf_get(lpfc_sli_misconfigured_port2,
4153                                         &misconfigured->theEvent);
4154                         break;
4155                 case LPFC_LINK_NUMBER_3:
4156                         status = bf_get(lpfc_sli_misconfigured_port3,
4157                                         &misconfigured->theEvent);
4158                         break;
4159                 default:
4160                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4161                         break;
4162                 }
4163
4164                 switch (status) {
4165                 case LPFC_SLI_EVENT_STATUS_VALID:
4166                         return; /* no message if the sfp is okay */
4167                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4168                         sprintf(message, "Optics faulted/incorrectly "
4169                                 "installed/not installed - Reseat optics, "
4170                                 "if issue not resolved, replace.");
4171                         break;
4172                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4173                         sprintf(message,
4174                                 "Optics of two types installed - Remove one "
4175                                 "optic or install matching pair of optics.");
4176                         break;
4177                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4178                         sprintf(message, "Incompatible optics - Replace with "
4179                                 "compatible optics for card to function.");
4180                         break;
4181                 default:
4182                         /* firmware is reporting a status we don't know about */
4183                         sprintf(message, "Unknown event status x%02x", status);
4184                         break;
4185                 }
4186
4187                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4188                                 "3176 Misconfigured Physical Port - "
4189                                 "Port Name %c %s\n", port_name, message);
4190                 break;
4191         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4192                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4193                                 "3192 Remote DPort Test Initiated - "
4194                                 "Event Data1:x%08x Event Data2: x%08x\n",
4195                                 acqe_sli->event_data1, acqe_sli->event_data2);
4196                 break;
4197         default:
4198                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4199                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4200                                 "x%08x SLI Event Type:%d\n",
4201                                 acqe_sli->event_data1, acqe_sli->event_data2,
4202                                 evt_type);
4203                 break;
4204         }
4205 }
4206
4207 /**
4208  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4209  * @vport: pointer to vport data structure.
4210  *
4211  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4212  * response to a CVL event.
4213  *
4214  * Return the pointer to the ndlp with the vport if successful, otherwise
4215  * return NULL.
4216  **/
4217 static struct lpfc_nodelist *
4218 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4219 {
4220         struct lpfc_nodelist *ndlp;
4221         struct Scsi_Host *shost;
4222         struct lpfc_hba *phba;
4223
4224         if (!vport)
4225                 return NULL;
4226         phba = vport->phba;
4227         if (!phba)
4228                 return NULL;
4229         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4230         if (!ndlp) {
4231                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4232                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4233                 if (!ndlp)
4234                         return 0;
4235                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4236                 /* Set the node type */
4237                 ndlp->nlp_type |= NLP_FABRIC;
4238                 /* Put ndlp onto node list */
4239                 lpfc_enqueue_node(vport, ndlp);
4240         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4241                 /* re-setup ndlp without removing from node list */
4242                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4243                 if (!ndlp)
4244                         return 0;
4245         }
4246         if ((phba->pport->port_state < LPFC_FLOGI) &&
4247                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4248                 return NULL;
4249         /* If virtual link is not yet instantiated ignore CVL */
4250         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4251                 && (vport->port_state != LPFC_VPORT_FAILED))
4252                 return NULL;
4253         shost = lpfc_shost_from_vport(vport);
4254         if (!shost)
4255                 return NULL;
4256         lpfc_linkdown_port(vport);
4257         lpfc_cleanup_pending_mbox(vport);
4258         spin_lock_irq(shost->host_lock);
4259         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4260         spin_unlock_irq(shost->host_lock);
4261
4262         return ndlp;
4263 }
4264
4265 /**
4266  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4267  * @vport: pointer to lpfc hba data structure.
4268  *
4269  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4270  * response to a FCF dead event.
4271  **/
4272 static void
4273 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4274 {
4275         struct lpfc_vport **vports;
4276         int i;
4277
4278         vports = lpfc_create_vport_work_array(phba);
4279         if (vports)
4280                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4281                         lpfc_sli4_perform_vport_cvl(vports[i]);
4282         lpfc_destroy_vport_work_array(phba, vports);
4283 }
4284
4285 /**
4286  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4287  * @phba: pointer to lpfc hba data structure.
4288  * @acqe_link: pointer to the async fcoe completion queue entry.
4289  *
4290  * This routine is to handle the SLI4 asynchronous fcoe event.
4291  **/
4292 static void
4293 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4294                         struct lpfc_acqe_fip *acqe_fip)
4295 {
4296         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4297         int rc;
4298         struct lpfc_vport *vport;
4299         struct lpfc_nodelist *ndlp;
4300         struct Scsi_Host  *shost;
4301         int active_vlink_present;
4302         struct lpfc_vport **vports;
4303         int i;
4304
4305         phba->fc_eventTag = acqe_fip->event_tag;
4306         phba->fcoe_eventtag = acqe_fip->event_tag;
4307         switch (event_type) {
4308         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4309         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4310                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4311                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4312                                         LOG_DISCOVERY,
4313                                         "2546 New FCF event, evt_tag:x%x, "
4314                                         "index:x%x\n",
4315                                         acqe_fip->event_tag,
4316                                         acqe_fip->index);
4317                 else
4318                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4319                                         LOG_DISCOVERY,
4320                                         "2788 FCF param modified event, "
4321                                         "evt_tag:x%x, index:x%x\n",
4322                                         acqe_fip->event_tag,
4323                                         acqe_fip->index);
4324                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4325                         /*
4326                          * During period of FCF discovery, read the FCF
4327                          * table record indexed by the event to update
4328                          * FCF roundrobin failover eligible FCF bmask.
4329                          */
4330                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4331                                         LOG_DISCOVERY,
4332                                         "2779 Read FCF (x%x) for updating "
4333                                         "roundrobin FCF failover bmask\n",
4334                                         acqe_fip->index);
4335                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4336                 }
4337
4338                 /* If the FCF discovery is in progress, do nothing. */
4339                 spin_lock_irq(&phba->hbalock);
4340                 if (phba->hba_flag & FCF_TS_INPROG) {
4341                         spin_unlock_irq(&phba->hbalock);
4342                         break;
4343                 }
4344                 /* If fast FCF failover rescan event is pending, do nothing */
4345                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4346                         spin_unlock_irq(&phba->hbalock);
4347                         break;
4348                 }
4349
4350                 /* If the FCF has been in discovered state, do nothing. */
4351                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4352                         spin_unlock_irq(&phba->hbalock);
4353                         break;
4354                 }
4355                 spin_unlock_irq(&phba->hbalock);
4356
4357                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4358                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4359                                 "2770 Start FCF table scan per async FCF "
4360                                 "event, evt_tag:x%x, index:x%x\n",
4361                                 acqe_fip->event_tag, acqe_fip->index);
4362                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4363                                                      LPFC_FCOE_FCF_GET_FIRST);
4364                 if (rc)
4365                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4366                                         "2547 Issue FCF scan read FCF mailbox "
4367                                         "command failed (x%x)\n", rc);
4368                 break;
4369
4370         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4371                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4372                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4373                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4374                         acqe_fip->event_tag);
4375                 break;
4376
4377         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4378                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4379                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4380                         "2549 FCF (x%x) disconnected from network, "
4381                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4382                 /*
4383                  * If we are in the middle of FCF failover process, clear
4384                  * the corresponding FCF bit in the roundrobin bitmap.
4385                  */
4386                 spin_lock_irq(&phba->hbalock);
4387                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4388                         spin_unlock_irq(&phba->hbalock);
4389                         /* Update FLOGI FCF failover eligible FCF bmask */
4390                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4391                         break;
4392                 }
4393                 spin_unlock_irq(&phba->hbalock);
4394
4395                 /* If the event is not for currently used fcf do nothing */
4396                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4397                         break;
4398
4399                 /*
4400                  * Otherwise, request the port to rediscover the entire FCF
4401                  * table for a fast recovery from case that the current FCF
4402                  * is no longer valid as we are not in the middle of FCF
4403                  * failover process already.
4404                  */
4405                 spin_lock_irq(&phba->hbalock);
4406                 /* Mark the fast failover process in progress */
4407                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4408                 spin_unlock_irq(&phba->hbalock);
4409
4410                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4411                                 "2771 Start FCF fast failover process due to "
4412                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4413                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4414                 rc = lpfc_sli4_redisc_fcf_table(phba);
4415                 if (rc) {
4416                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4417                                         LOG_DISCOVERY,
4418                                         "2772 Issue FCF rediscover mabilbox "
4419                                         "command failed, fail through to FCF "
4420                                         "dead event\n");
4421                         spin_lock_irq(&phba->hbalock);
4422                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4423                         spin_unlock_irq(&phba->hbalock);
4424                         /*
4425                          * Last resort will fail over by treating this
4426                          * as a link down to FCF registration.
4427                          */
4428                         lpfc_sli4_fcf_dead_failthrough(phba);
4429                 } else {
4430                         /* Reset FCF roundrobin bmask for new discovery */
4431                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4432                         /*
4433                          * Handling fast FCF failover to a DEAD FCF event is
4434                          * considered equalivant to receiving CVL to all vports.
4435                          */
4436                         lpfc_sli4_perform_all_vport_cvl(phba);
4437                 }
4438                 break;
4439         case LPFC_FIP_EVENT_TYPE_CVL:
4440                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4441                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4442                         "2718 Clear Virtual Link Received for VPI 0x%x"
4443                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4444
4445                 vport = lpfc_find_vport_by_vpid(phba,
4446                                                 acqe_fip->index);
4447                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4448                 if (!ndlp)
4449                         break;
4450                 active_vlink_present = 0;
4451
4452                 vports = lpfc_create_vport_work_array(phba);
4453                 if (vports) {
4454                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4455                                         i++) {
4456                                 if ((!(vports[i]->fc_flag &
4457                                         FC_VPORT_CVL_RCVD)) &&
4458                                         (vports[i]->port_state > LPFC_FDISC)) {
4459                                         active_vlink_present = 1;
4460                                         break;
4461                                 }
4462                         }
4463                         lpfc_destroy_vport_work_array(phba, vports);
4464                 }
4465
4466                 if (active_vlink_present) {
4467                         /*
4468                          * If there are other active VLinks present,
4469                          * re-instantiate the Vlink using FDISC.
4470                          */
4471                         mod_timer(&ndlp->nlp_delayfunc,
4472                                   jiffies + msecs_to_jiffies(1000));
4473                         shost = lpfc_shost_from_vport(vport);
4474                         spin_lock_irq(shost->host_lock);
4475                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4476                         spin_unlock_irq(shost->host_lock);
4477                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4478                         vport->port_state = LPFC_FDISC;
4479                 } else {
4480                         /*
4481                          * Otherwise, we request port to rediscover
4482                          * the entire FCF table for a fast recovery
4483                          * from possible case that the current FCF
4484                          * is no longer valid if we are not already
4485                          * in the FCF failover process.
4486                          */
4487                         spin_lock_irq(&phba->hbalock);
4488                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4489                                 spin_unlock_irq(&phba->hbalock);
4490                                 break;
4491                         }
4492                         /* Mark the fast failover process in progress */
4493                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4494                         spin_unlock_irq(&phba->hbalock);
4495                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4496                                         LOG_DISCOVERY,
4497                                         "2773 Start FCF failover per CVL, "
4498                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4499                         rc = lpfc_sli4_redisc_fcf_table(phba);
4500                         if (rc) {
4501                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4502                                                 LOG_DISCOVERY,
4503                                                 "2774 Issue FCF rediscover "
4504                                                 "mabilbox command failed, "
4505                                                 "through to CVL event\n");
4506                                 spin_lock_irq(&phba->hbalock);
4507                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4508                                 spin_unlock_irq(&phba->hbalock);
4509                                 /*
4510                                  * Last resort will be re-try on the
4511                                  * the current registered FCF entry.
4512                                  */
4513                                 lpfc_retry_pport_discovery(phba);
4514                         } else
4515                                 /*
4516                                  * Reset FCF roundrobin bmask for new
4517                                  * discovery.
4518                                  */
4519                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4520                 }
4521                 break;
4522         default:
4523                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4524                         "0288 Unknown FCoE event type 0x%x event tag "
4525                         "0x%x\n", event_type, acqe_fip->event_tag);
4526                 break;
4527         }
4528 }
4529
4530 /**
4531  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4532  * @phba: pointer to lpfc hba data structure.
4533  * @acqe_link: pointer to the async dcbx completion queue entry.
4534  *
4535  * This routine is to handle the SLI4 asynchronous dcbx event.
4536  **/
4537 static void
4538 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4539                          struct lpfc_acqe_dcbx *acqe_dcbx)
4540 {
4541         phba->fc_eventTag = acqe_dcbx->event_tag;
4542         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4543                         "0290 The SLI4 DCBX asynchronous event is not "
4544                         "handled yet\n");
4545 }
4546
4547 /**
4548  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4549  * @phba: pointer to lpfc hba data structure.
4550  * @acqe_link: pointer to the async grp5 completion queue entry.
4551  *
4552  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4553  * is an asynchronous notified of a logical link speed change.  The Port
4554  * reports the logical link speed in units of 10Mbps.
4555  **/
4556 static void
4557 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4558                          struct lpfc_acqe_grp5 *acqe_grp5)
4559 {
4560         uint16_t prev_ll_spd;
4561
4562         phba->fc_eventTag = acqe_grp5->event_tag;
4563         phba->fcoe_eventtag = acqe_grp5->event_tag;
4564         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4565         phba->sli4_hba.link_state.logical_speed =
4566                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4567         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4568                         "2789 GRP5 Async Event: Updating logical link speed "
4569                         "from %dMbps to %dMbps\n", prev_ll_spd,
4570                         phba->sli4_hba.link_state.logical_speed);
4571 }
4572
4573 /**
4574  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4575  * @phba: pointer to lpfc hba data structure.
4576  *
4577  * This routine is invoked by the worker thread to process all the pending
4578  * SLI4 asynchronous events.
4579  **/
4580 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4581 {
4582         struct lpfc_cq_event *cq_event;
4583
4584         /* First, declare the async event has been handled */
4585         spin_lock_irq(&phba->hbalock);
4586         phba->hba_flag &= ~ASYNC_EVENT;
4587         spin_unlock_irq(&phba->hbalock);
4588         /* Now, handle all the async events */
4589         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4590                 /* Get the first event from the head of the event queue */
4591                 spin_lock_irq(&phba->hbalock);
4592                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4593                                  cq_event, struct lpfc_cq_event, list);
4594                 spin_unlock_irq(&phba->hbalock);
4595                 /* Process the asynchronous event */
4596                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4597                 case LPFC_TRAILER_CODE_LINK:
4598                         lpfc_sli4_async_link_evt(phba,
4599                                                  &cq_event->cqe.acqe_link);
4600                         break;
4601                 case LPFC_TRAILER_CODE_FCOE:
4602                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4603                         break;
4604                 case LPFC_TRAILER_CODE_DCBX:
4605                         lpfc_sli4_async_dcbx_evt(phba,
4606                                                  &cq_event->cqe.acqe_dcbx);
4607                         break;
4608                 case LPFC_TRAILER_CODE_GRP5:
4609                         lpfc_sli4_async_grp5_evt(phba,
4610                                                  &cq_event->cqe.acqe_grp5);
4611                         break;
4612                 case LPFC_TRAILER_CODE_FC:
4613                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4614                         break;
4615                 case LPFC_TRAILER_CODE_SLI:
4616                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4617                         break;
4618                 default:
4619                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4620                                         "1804 Invalid asynchrous event code: "
4621                                         "x%x\n", bf_get(lpfc_trailer_code,
4622                                         &cq_event->cqe.mcqe_cmpl));
4623                         break;
4624                 }
4625                 /* Free the completion event processed to the free pool */
4626                 lpfc_sli4_cq_event_release(phba, cq_event);
4627         }
4628 }
4629
4630 /**
4631  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4632  * @phba: pointer to lpfc hba data structure.
4633  *
4634  * This routine is invoked by the worker thread to process FCF table
4635  * rediscovery pending completion event.
4636  **/
4637 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4638 {
4639         int rc;
4640
4641         spin_lock_irq(&phba->hbalock);
4642         /* Clear FCF rediscovery timeout event */
4643         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4644         /* Clear driver fast failover FCF record flag */
4645         phba->fcf.failover_rec.flag = 0;
4646         /* Set state for FCF fast failover */
4647         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4648         spin_unlock_irq(&phba->hbalock);
4649
4650         /* Scan FCF table from the first entry to re-discover SAN */
4651         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4652                         "2777 Start post-quiescent FCF table scan\n");
4653         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4654         if (rc)
4655                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4656                                 "2747 Issue FCF scan read FCF mailbox "
4657                                 "command failed 0x%x\n", rc);
4658 }
4659
4660 /**
4661  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4662  * @phba: pointer to lpfc hba data structure.
4663  * @dev_grp: The HBA PCI-Device group number.
4664  *
4665  * This routine is invoked to set up the per HBA PCI-Device group function
4666  * API jump table entries.
4667  *
4668  * Return: 0 if success, otherwise -ENODEV
4669  **/
4670 int
4671 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4672 {
4673         int rc;
4674
4675         /* Set up lpfc PCI-device group */
4676         phba->pci_dev_grp = dev_grp;
4677
4678         /* The LPFC_PCI_DEV_OC uses SLI4 */
4679         if (dev_grp == LPFC_PCI_DEV_OC)
4680                 phba->sli_rev = LPFC_SLI_REV4;
4681
4682         /* Set up device INIT API function jump table */
4683         rc = lpfc_init_api_table_setup(phba, dev_grp);
4684         if (rc)
4685                 return -ENODEV;
4686         /* Set up SCSI API function jump table */
4687         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4688         if (rc)
4689                 return -ENODEV;
4690         /* Set up SLI API function jump table */
4691         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4692         if (rc)
4693                 return -ENODEV;
4694         /* Set up MBOX API function jump table */
4695         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4696         if (rc)
4697                 return -ENODEV;
4698
4699         return 0;
4700 }
4701
4702 /**
4703  * lpfc_log_intr_mode - Log the active interrupt mode
4704  * @phba: pointer to lpfc hba data structure.
4705  * @intr_mode: active interrupt mode adopted.
4706  *
4707  * This routine it invoked to log the currently used active interrupt mode
4708  * to the device.
4709  **/
4710 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4711 {
4712         switch (intr_mode) {
4713         case 0:
4714                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4715                                 "0470 Enable INTx interrupt mode.\n");
4716                 break;
4717         case 1:
4718                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4719                                 "0481 Enabled MSI interrupt mode.\n");
4720                 break;
4721         case 2:
4722                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4723                                 "0480 Enabled MSI-X interrupt mode.\n");
4724                 break;
4725         default:
4726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4727                                 "0482 Illegal interrupt mode.\n");
4728                 break;
4729         }
4730         return;
4731 }
4732
4733 /**
4734  * lpfc_enable_pci_dev - Enable a generic PCI device.
4735  * @phba: pointer to lpfc hba data structure.
4736  *
4737  * This routine is invoked to enable the PCI device that is common to all
4738  * PCI devices.
4739  *
4740  * Return codes
4741  *      0 - successful
4742  *      other values - error
4743  **/
4744 static int
4745 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4746 {
4747         struct pci_dev *pdev;
4748         int bars = 0;
4749
4750         /* Obtain PCI device reference */
4751         if (!phba->pcidev)
4752                 goto out_error;
4753         else
4754                 pdev = phba->pcidev;
4755         /* Select PCI BARs */
4756         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4757         /* Enable PCI device */
4758         if (pci_enable_device_mem(pdev))
4759                 goto out_error;
4760         /* Request PCI resource for the device */
4761         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4762                 goto out_disable_device;
4763         /* Set up device as PCI master and save state for EEH */
4764         pci_set_master(pdev);
4765         pci_try_set_mwi(pdev);
4766         pci_save_state(pdev);
4767
4768         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4769         if (pci_is_pcie(pdev))
4770                 pdev->needs_freset = 1;
4771
4772         return 0;
4773
4774 out_disable_device:
4775         pci_disable_device(pdev);
4776 out_error:
4777         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4778                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4779         return -ENODEV;
4780 }
4781
4782 /**
4783  * lpfc_disable_pci_dev - Disable a generic PCI device.
4784  * @phba: pointer to lpfc hba data structure.
4785  *
4786  * This routine is invoked to disable the PCI device that is common to all
4787  * PCI devices.
4788  **/
4789 static void
4790 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4791 {
4792         struct pci_dev *pdev;
4793         int bars;
4794
4795         /* Obtain PCI device reference */
4796         if (!phba->pcidev)
4797                 return;
4798         else
4799                 pdev = phba->pcidev;
4800         /* Select PCI BARs */
4801         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4802         /* Release PCI resource and disable PCI device */
4803         pci_release_selected_regions(pdev, bars);
4804         pci_disable_device(pdev);
4805
4806         return;
4807 }
4808
4809 /**
4810  * lpfc_reset_hba - Reset a hba
4811  * @phba: pointer to lpfc hba data structure.
4812  *
4813  * This routine is invoked to reset a hba device. It brings the HBA
4814  * offline, performs a board restart, and then brings the board back
4815  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4816  * on outstanding mailbox commands.
4817  **/
4818 void
4819 lpfc_reset_hba(struct lpfc_hba *phba)
4820 {
4821         /* If resets are disabled then set error state and return. */
4822         if (!phba->cfg_enable_hba_reset) {
4823                 phba->link_state = LPFC_HBA_ERROR;
4824                 return;
4825         }
4826         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4827                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4828         else
4829                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4830         lpfc_offline(phba);
4831         lpfc_sli_brdrestart(phba);
4832         lpfc_online(phba);
4833         lpfc_unblock_mgmt_io(phba);
4834 }
4835
4836 /**
4837  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4838  * @phba: pointer to lpfc hba data structure.
4839  *
4840  * This function enables the PCI SR-IOV virtual functions to a physical
4841  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4842  * enable the number of virtual functions to the physical function. As
4843  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4844  * API call does not considered as an error condition for most of the device.
4845  **/
4846 uint16_t
4847 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4848 {
4849         struct pci_dev *pdev = phba->pcidev;
4850         uint16_t nr_virtfn;
4851         int pos;
4852
4853         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4854         if (pos == 0)
4855                 return 0;
4856
4857         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4858         return nr_virtfn;
4859 }
4860
4861 /**
4862  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4863  * @phba: pointer to lpfc hba data structure.
4864  * @nr_vfn: number of virtual functions to be enabled.
4865  *
4866  * This function enables the PCI SR-IOV virtual functions to a physical
4867  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4868  * enable the number of virtual functions to the physical function. As
4869  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4870  * API call does not considered as an error condition for most of the device.
4871  **/
4872 int
4873 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4874 {
4875         struct pci_dev *pdev = phba->pcidev;
4876         uint16_t max_nr_vfn;
4877         int rc;
4878
4879         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4880         if (nr_vfn > max_nr_vfn) {
4881                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4882                                 "3057 Requested vfs (%d) greater than "
4883                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4884                 return -EINVAL;
4885         }
4886
4887         rc = pci_enable_sriov(pdev, nr_vfn);
4888         if (rc) {
4889                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4890                                 "2806 Failed to enable sriov on this device "
4891                                 "with vfn number nr_vf:%d, rc:%d\n",
4892                                 nr_vfn, rc);
4893         } else
4894                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4895                                 "2807 Successful enable sriov on this device "
4896                                 "with vfn number nr_vf:%d\n", nr_vfn);
4897         return rc;
4898 }
4899
4900 /**
4901  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4902  * @phba: pointer to lpfc hba data structure.
4903  *
4904  * This routine is invoked to set up the driver internal resources specific to
4905  * support the SLI-3 HBA device it attached to.
4906  *
4907  * Return codes
4908  *      0 - successful
4909  *      other values - error
4910  **/
4911 static int
4912 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4913 {
4914         struct lpfc_sli *psli;
4915         int rc;
4916
4917         /*
4918          * Initialize timers used by driver
4919          */
4920
4921         /* Heartbeat timer */
4922         init_timer(&phba->hb_tmofunc);
4923         phba->hb_tmofunc.function = lpfc_hb_timeout;
4924         phba->hb_tmofunc.data = (unsigned long)phba;
4925
4926         psli = &phba->sli;
4927         /* MBOX heartbeat timer */
4928         init_timer(&psli->mbox_tmo);
4929         psli->mbox_tmo.function = lpfc_mbox_timeout;
4930         psli->mbox_tmo.data = (unsigned long) phba;
4931         /* FCP polling mode timer */
4932         init_timer(&phba->fcp_poll_timer);
4933         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4934         phba->fcp_poll_timer.data = (unsigned long) phba;
4935         /* Fabric block timer */
4936         init_timer(&phba->fabric_block_timer);
4937         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4938         phba->fabric_block_timer.data = (unsigned long) phba;
4939         /* EA polling mode timer */
4940         init_timer(&phba->eratt_poll);
4941         phba->eratt_poll.function = lpfc_poll_eratt;
4942         phba->eratt_poll.data = (unsigned long) phba;
4943
4944         /* Host attention work mask setup */
4945         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4946         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4947
4948         /* Get all the module params for configuring this host */
4949         lpfc_get_cfgparam(phba);
4950         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4951                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4952                 /* check for menlo minimum sg count */
4953                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4954                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4955         }
4956
4957         if (!phba->sli.ring)
4958                 phba->sli.ring = (struct lpfc_sli_ring *)
4959                         kzalloc(LPFC_SLI3_MAX_RING *
4960                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4961         if (!phba->sli.ring)
4962                 return -ENOMEM;
4963
4964         /*
4965          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4966          * used to create the sg_dma_buf_pool must be dynamically calculated.
4967          */
4968
4969         /* Initialize the host templates the configured values. */
4970         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4971         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4972
4973         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4974         if (phba->cfg_enable_bg) {
4975                 /*
4976                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4977                  * the FCP rsp, and a BDE for each. Sice we have no control
4978                  * over how many protection data segments the SCSI Layer
4979                  * will hand us (ie: there could be one for every block
4980                  * in the IO), we just allocate enough BDEs to accomidate
4981                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4982                  * minimize the risk of running out.
4983                  */
4984                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4985                         sizeof(struct fcp_rsp) +
4986                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4987
4988                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4989                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4990
4991                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4992                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4993         } else {
4994                 /*
4995                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4996                  * the FCP rsp, a BDE for each, and a BDE for up to
4997                  * cfg_sg_seg_cnt data segments.
4998                  */
4999                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5000                         sizeof(struct fcp_rsp) +
5001                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5002
5003                 /* Total BDEs in BPL for scsi_sg_list */
5004                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5005         }
5006
5007         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5008                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5009                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5010                         phba->cfg_total_seg_cnt);
5011
5012         phba->max_vpi = LPFC_MAX_VPI;
5013         /* This will be set to correct value after config_port mbox */
5014         phba->max_vports = 0;
5015
5016         /*
5017          * Initialize the SLI Layer to run with lpfc HBAs.
5018          */
5019         lpfc_sli_setup(phba);
5020         lpfc_sli_queue_setup(phba);
5021
5022         /* Allocate device driver memory */
5023         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5024                 return -ENOMEM;
5025
5026         /*
5027          * Enable sr-iov virtual functions if supported and configured
5028          * through the module parameter.
5029          */
5030         if (phba->cfg_sriov_nr_virtfn > 0) {
5031                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5032                                                  phba->cfg_sriov_nr_virtfn);
5033                 if (rc) {
5034                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5035                                         "2808 Requested number of SR-IOV "
5036                                         "virtual functions (%d) is not "
5037                                         "supported\n",
5038                                         phba->cfg_sriov_nr_virtfn);
5039                         phba->cfg_sriov_nr_virtfn = 0;
5040                 }
5041         }
5042
5043         return 0;
5044 }
5045
5046 /**
5047  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5048  * @phba: pointer to lpfc hba data structure.
5049  *
5050  * This routine is invoked to unset the driver internal resources set up
5051  * specific for supporting the SLI-3 HBA device it attached to.
5052  **/
5053 static void
5054 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5055 {
5056         /* Free device driver memory allocated */
5057         lpfc_mem_free_all(phba);
5058
5059         return;
5060 }
5061
5062 /**
5063  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5064  * @phba: pointer to lpfc hba data structure.
5065  *
5066  * This routine is invoked to set up the driver internal resources specific to
5067  * support the SLI-4 HBA device it attached to.
5068  *
5069  * Return codes
5070  *      0 - successful
5071  *      other values - error
5072  **/
5073 static int
5074 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5075 {
5076         struct lpfc_vector_map_info *cpup;
5077         struct lpfc_sli *psli;
5078         LPFC_MBOXQ_t *mboxq;
5079         int rc, i, hbq_count, max_buf_size;
5080         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5081         struct lpfc_mqe *mqe;
5082         int longs;
5083         int fof_vectors = 0;
5084
5085         /* Get all the module params for configuring this host */
5086         lpfc_get_cfgparam(phba);
5087
5088         /* Before proceed, wait for POST done and device ready */
5089         rc = lpfc_sli4_post_status_check(phba);
5090         if (rc)
5091                 return -ENODEV;
5092
5093         /*
5094          * Initialize timers used by driver
5095          */
5096
5097         /* Heartbeat timer */
5098         init_timer(&phba->hb_tmofunc);
5099         phba->hb_tmofunc.function = lpfc_hb_timeout;
5100         phba->hb_tmofunc.data = (unsigned long)phba;
5101         init_timer(&phba->rrq_tmr);
5102         phba->rrq_tmr.function = lpfc_rrq_timeout;
5103         phba->rrq_tmr.data = (unsigned long)phba;
5104
5105         psli = &phba->sli;
5106         /* MBOX heartbeat timer */
5107         init_timer(&psli->mbox_tmo);
5108         psli->mbox_tmo.function = lpfc_mbox_timeout;
5109         psli->mbox_tmo.data = (unsigned long) phba;
5110         /* Fabric block timer */
5111         init_timer(&phba->fabric_block_timer);
5112         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5113         phba->fabric_block_timer.data = (unsigned long) phba;
5114         /* EA polling mode timer */
5115         init_timer(&phba->eratt_poll);
5116         phba->eratt_poll.function = lpfc_poll_eratt;
5117         phba->eratt_poll.data = (unsigned long) phba;
5118         /* FCF rediscover timer */
5119         init_timer(&phba->fcf.redisc_wait);
5120         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5121         phba->fcf.redisc_wait.data = (unsigned long)phba;
5122
5123         /*
5124          * Control structure for handling external multi-buffer mailbox
5125          * command pass-through.
5126          */
5127         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5128                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5129         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5130
5131         phba->max_vpi = LPFC_MAX_VPI;
5132
5133         /* This will be set to correct value after the read_config mbox */
5134         phba->max_vports = 0;
5135
5136         /* Program the default value of vlan_id and fc_map */
5137         phba->valid_vlan = 0;
5138         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5139         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5140         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5141
5142         /*
5143          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5144          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5145          */
5146         if (!phba->sli.ring)
5147                 phba->sli.ring = kzalloc(
5148                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5149                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5150         if (!phba->sli.ring)
5151                 return -ENOMEM;
5152
5153         /*
5154          * It doesn't matter what family our adapter is in, we are
5155          * limited to 2 Pages, 512 SGEs, for our SGL.
5156          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5157          */
5158         max_buf_size = (2 * SLI4_PAGE_SIZE);
5159         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5160                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5161
5162         /*
5163          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5164          * used to create the sg_dma_buf_pool must be dynamically calculated.
5165          */
5166
5167         if (phba->cfg_enable_bg) {
5168                 /*
5169                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5170                  * the FCP rsp, and a SGE for each. Sice we have no control
5171                  * over how many protection data segments the SCSI Layer
5172                  * will hand us (ie: there could be one for every block
5173                  * in the IO), we just allocate enough SGEs to accomidate
5174                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5175                  * minimize the risk of running out.
5176                  */
5177                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5178                         sizeof(struct fcp_rsp) + max_buf_size;
5179
5180                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5181                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5182
5183                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5184                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5185         } else {
5186                 /*
5187                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5188                  * the FCP rsp, a SGE for each, and a SGE for up to
5189                  * cfg_sg_seg_cnt data segments.
5190                  */
5191                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5192                         sizeof(struct fcp_rsp) +
5193                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5194
5195                 /* Total SGEs for scsi_sg_list */
5196                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5197                 /*
5198                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5199                  * to post 1 page for the SGL.
5200                  */
5201         }
5202
5203         /* Initialize the host templates with the updated values. */
5204         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5205         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5206
5207         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5208                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5209         else
5210                 phba->cfg_sg_dma_buf_size =
5211                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5212
5213         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5214                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5215                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5216                         phba->cfg_total_seg_cnt);
5217
5218         /* Initialize buffer queue management fields */
5219         hbq_count = lpfc_sli_hbq_count();
5220         for (i = 0; i < hbq_count; ++i)
5221                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5222         INIT_LIST_HEAD(&phba->rb_pend_list);
5223         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5224         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5225
5226         /*
5227          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5228          */
5229         /* Initialize the Abort scsi buffer list used by driver */
5230         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5231         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5232         /* This abort list used by worker thread */
5233         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5234
5235         /*
5236          * Initialize driver internal slow-path work queues
5237          */
5238
5239         /* Driver internel slow-path CQ Event pool */
5240         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5241         /* Response IOCB work queue list */
5242         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5243         /* Asynchronous event CQ Event work queue list */
5244         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5245         /* Fast-path XRI aborted CQ Event work queue list */
5246         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5247         /* Slow-path XRI aborted CQ Event work queue list */
5248         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5249         /* Receive queue CQ Event work queue list */
5250         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5251
5252         /* Initialize extent block lists. */
5253         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5254         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5255         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5256         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5257
5258         /* Initialize the driver internal SLI layer lists. */
5259         lpfc_sli_setup(phba);
5260         lpfc_sli_queue_setup(phba);
5261
5262         /* Allocate device driver memory */
5263         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5264         if (rc)
5265                 return -ENOMEM;
5266
5267         /* IF Type 2 ports get initialized now. */
5268         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5269             LPFC_SLI_INTF_IF_TYPE_2) {
5270                 rc = lpfc_pci_function_reset(phba);
5271                 if (unlikely(rc))
5272                         return -ENODEV;
5273                 phba->temp_sensor_support = 1;
5274         }
5275
5276         /* Create the bootstrap mailbox command */
5277         rc = lpfc_create_bootstrap_mbox(phba);
5278         if (unlikely(rc))
5279                 goto out_free_mem;
5280
5281         /* Set up the host's endian order with the device. */
5282         rc = lpfc_setup_endian_order(phba);
5283         if (unlikely(rc))
5284                 goto out_free_bsmbx;
5285
5286         /* Set up the hba's configuration parameters. */
5287         rc = lpfc_sli4_read_config(phba);
5288         if (unlikely(rc))
5289                 goto out_free_bsmbx;
5290         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5291         if (unlikely(rc))
5292                 goto out_free_bsmbx;
5293
5294         /* IF Type 0 ports get initialized now. */
5295         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5296             LPFC_SLI_INTF_IF_TYPE_0) {
5297                 rc = lpfc_pci_function_reset(phba);
5298                 if (unlikely(rc))
5299                         goto out_free_bsmbx;
5300         }
5301
5302         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5303                                                        GFP_KERNEL);
5304         if (!mboxq) {
5305                 rc = -ENOMEM;
5306                 goto out_free_bsmbx;
5307         }
5308
5309         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5310         lpfc_supported_pages(mboxq);
5311         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5312         if (!rc) {
5313                 mqe = &mboxq->u.mqe;
5314                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5315                        LPFC_MAX_SUPPORTED_PAGES);
5316                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5317                         switch (pn_page[i]) {
5318                         case LPFC_SLI4_PARAMETERS:
5319                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5320                                 break;
5321                         default:
5322                                 break;
5323                         }
5324                 }
5325                 /* Read the port's SLI4 Parameters capabilities if supported. */
5326                 if (phba->sli4_hba.pc_sli4_params.supported)
5327                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5328                 if (rc) {
5329                         mempool_free(mboxq, phba->mbox_mem_pool);
5330                         rc = -EIO;
5331                         goto out_free_bsmbx;
5332                 }
5333         }
5334         /*
5335          * Get sli4 parameters that override parameters from Port capabilities.
5336          * If this call fails, it isn't critical unless the SLI4 parameters come
5337          * back in conflict.
5338          */
5339         rc = lpfc_get_sli4_parameters(phba, mboxq);
5340         if (rc) {
5341                 if (phba->sli4_hba.extents_in_use &&
5342                     phba->sli4_hba.rpi_hdrs_in_use) {
5343                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5344                                 "2999 Unsupported SLI4 Parameters "
5345                                 "Extents and RPI headers enabled.\n");
5346                         goto out_free_bsmbx;
5347                 }
5348         }
5349         mempool_free(mboxq, phba->mbox_mem_pool);
5350
5351         /* Verify OAS is supported */
5352         lpfc_sli4_oas_verify(phba);
5353         if (phba->cfg_fof)
5354                 fof_vectors = 1;
5355
5356         /* Verify all the SLI4 queues */
5357         rc = lpfc_sli4_queue_verify(phba);
5358         if (rc)
5359                 goto out_free_bsmbx;
5360
5361         /* Create driver internal CQE event pool */
5362         rc = lpfc_sli4_cq_event_pool_create(phba);
5363         if (rc)
5364                 goto out_free_bsmbx;
5365
5366         /* Initialize sgl lists per host */
5367         lpfc_init_sgl_list(phba);
5368
5369         /* Allocate and initialize active sgl array */
5370         rc = lpfc_init_active_sgl_array(phba);
5371         if (rc) {
5372                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5373                                 "1430 Failed to initialize sgl list.\n");
5374                 goto out_destroy_cq_event_pool;
5375         }
5376         rc = lpfc_sli4_init_rpi_hdrs(phba);
5377         if (rc) {
5378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5379                                 "1432 Failed to initialize rpi headers.\n");
5380                 goto out_free_active_sgl;
5381         }
5382
5383         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5384         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5385         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5386                                          GFP_KERNEL);
5387         if (!phba->fcf.fcf_rr_bmask) {
5388                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5389                                 "2759 Failed allocate memory for FCF round "
5390                                 "robin failover bmask\n");
5391                 rc = -ENOMEM;
5392                 goto out_remove_rpi_hdrs;
5393         }
5394
5395         phba->sli4_hba.fcp_eq_hdl =
5396                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5397                             (fof_vectors + phba->cfg_fcp_io_channel)),
5398                             GFP_KERNEL);
5399         if (!phba->sli4_hba.fcp_eq_hdl) {
5400                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5401                                 "2572 Failed allocate memory for "
5402                                 "fast-path per-EQ handle array\n");
5403                 rc = -ENOMEM;
5404                 goto out_free_fcf_rr_bmask;
5405         }
5406
5407         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5408                                   (fof_vectors +
5409                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5410         if (!phba->sli4_hba.msix_entries) {
5411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5412                                 "2573 Failed allocate memory for msi-x "
5413                                 "interrupt vector entries\n");
5414                 rc = -ENOMEM;
5415                 goto out_free_fcp_eq_hdl;
5416         }
5417
5418         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5419                                          phba->sli4_hba.num_present_cpu),
5420                                          GFP_KERNEL);
5421         if (!phba->sli4_hba.cpu_map) {
5422                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5423                                 "3327 Failed allocate memory for msi-x "
5424                                 "interrupt vector mapping\n");
5425                 rc = -ENOMEM;
5426                 goto out_free_msix;
5427         }
5428         if (lpfc_used_cpu == NULL) {
5429                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5430                                          GFP_KERNEL);
5431                 if (!lpfc_used_cpu) {
5432                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5433                                         "3335 Failed allocate memory for msi-x "
5434                                         "interrupt vector mapping\n");
5435                         kfree(phba->sli4_hba.cpu_map);
5436                         rc = -ENOMEM;
5437                         goto out_free_msix;
5438                 }
5439                 for (i = 0; i < lpfc_present_cpu; i++)
5440                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5441         }
5442
5443         /* Initialize io channels for round robin */
5444         cpup = phba->sli4_hba.cpu_map;
5445         rc = 0;
5446         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5447                 cpup->channel_id = rc;
5448                 rc++;
5449                 if (rc >= phba->cfg_fcp_io_channel)
5450                         rc = 0;
5451         }
5452
5453         /*
5454          * Enable sr-iov virtual functions if supported and configured
5455          * through the module parameter.
5456          */
5457         if (phba->cfg_sriov_nr_virtfn > 0) {
5458                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5459                                                  phba->cfg_sriov_nr_virtfn);
5460                 if (rc) {
5461                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5462                                         "3020 Requested number of SR-IOV "
5463                                         "virtual functions (%d) is not "
5464                                         "supported\n",
5465                                         phba->cfg_sriov_nr_virtfn);
5466                         phba->cfg_sriov_nr_virtfn = 0;
5467                 }
5468         }
5469
5470         return 0;
5471
5472 out_free_msix:
5473         kfree(phba->sli4_hba.msix_entries);
5474 out_free_fcp_eq_hdl:
5475         kfree(phba->sli4_hba.fcp_eq_hdl);
5476 out_free_fcf_rr_bmask:
5477         kfree(phba->fcf.fcf_rr_bmask);
5478 out_remove_rpi_hdrs:
5479         lpfc_sli4_remove_rpi_hdrs(phba);
5480 out_free_active_sgl:
5481         lpfc_free_active_sgl(phba);
5482 out_destroy_cq_event_pool:
5483         lpfc_sli4_cq_event_pool_destroy(phba);
5484 out_free_bsmbx:
5485         lpfc_destroy_bootstrap_mbox(phba);
5486 out_free_mem:
5487         lpfc_mem_free(phba);
5488         return rc;
5489 }
5490
5491 /**
5492  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5493  * @phba: pointer to lpfc hba data structure.
5494  *
5495  * This routine is invoked to unset the driver internal resources set up
5496  * specific for supporting the SLI-4 HBA device it attached to.
5497  **/
5498 static void
5499 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5500 {
5501         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5502
5503         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5504         kfree(phba->sli4_hba.cpu_map);
5505         phba->sli4_hba.num_present_cpu = 0;
5506         phba->sli4_hba.num_online_cpu = 0;
5507         phba->sli4_hba.curr_disp_cpu = 0;
5508
5509         /* Free memory allocated for msi-x interrupt vector entries */
5510         kfree(phba->sli4_hba.msix_entries);
5511
5512         /* Free memory allocated for fast-path work queue handles */
5513         kfree(phba->sli4_hba.fcp_eq_hdl);
5514
5515         /* Free the allocated rpi headers. */
5516         lpfc_sli4_remove_rpi_hdrs(phba);
5517         lpfc_sli4_remove_rpis(phba);
5518
5519         /* Free eligible FCF index bmask */
5520         kfree(phba->fcf.fcf_rr_bmask);
5521
5522         /* Free the ELS sgl list */
5523         lpfc_free_active_sgl(phba);
5524         lpfc_free_els_sgl_list(phba);
5525
5526         /* Free the completion queue EQ event pool */
5527         lpfc_sli4_cq_event_release_all(phba);
5528         lpfc_sli4_cq_event_pool_destroy(phba);
5529
5530         /* Release resource identifiers. */
5531         lpfc_sli4_dealloc_resource_identifiers(phba);
5532
5533         /* Free the bsmbx region. */
5534         lpfc_destroy_bootstrap_mbox(phba);
5535
5536         /* Free the SLI Layer memory with SLI4 HBAs */
5537         lpfc_mem_free_all(phba);
5538
5539         /* Free the current connect table */
5540         list_for_each_entry_safe(conn_entry, next_conn_entry,
5541                 &phba->fcf_conn_rec_list, list) {
5542                 list_del_init(&conn_entry->list);
5543                 kfree(conn_entry);
5544         }
5545
5546         return;
5547 }
5548
5549 /**
5550  * lpfc_init_api_table_setup - Set up init api function jump table
5551  * @phba: The hba struct for which this call is being executed.
5552  * @dev_grp: The HBA PCI-Device group number.
5553  *
5554  * This routine sets up the device INIT interface API function jump table
5555  * in @phba struct.
5556  *
5557  * Returns: 0 - success, -ENODEV - failure.
5558  **/
5559 int
5560 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5561 {
5562         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5563         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5564         phba->lpfc_selective_reset = lpfc_selective_reset;
5565         switch (dev_grp) {
5566         case LPFC_PCI_DEV_LP:
5567                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5568                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5569                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5570                 break;
5571         case LPFC_PCI_DEV_OC:
5572                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5573                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5574                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5575                 break;
5576         default:
5577                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5578                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5579                                 dev_grp);
5580                 return -ENODEV;
5581                 break;
5582         }
5583         return 0;
5584 }
5585
5586 /**
5587  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5588  * @phba: pointer to lpfc hba data structure.
5589  *
5590  * This routine is invoked to set up the driver internal resources before the
5591  * device specific resource setup to support the HBA device it attached to.
5592  *
5593  * Return codes
5594  *      0 - successful
5595  *      other values - error
5596  **/
5597 static int
5598 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5599 {
5600         /*
5601          * Driver resources common to all SLI revisions
5602          */
5603         atomic_set(&phba->fast_event_count, 0);
5604         spin_lock_init(&phba->hbalock);
5605
5606         /* Initialize ndlp management spinlock */
5607         spin_lock_init(&phba->ndlp_lock);
5608
5609         INIT_LIST_HEAD(&phba->port_list);
5610         INIT_LIST_HEAD(&phba->work_list);
5611         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5612
5613         /* Initialize the wait queue head for the kernel thread */
5614         init_waitqueue_head(&phba->work_waitq);
5615
5616         /* Initialize the scsi buffer list used by driver for scsi IO */
5617         spin_lock_init(&phba->scsi_buf_list_get_lock);
5618         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5619         spin_lock_init(&phba->scsi_buf_list_put_lock);
5620         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5621
5622         /* Initialize the fabric iocb list */
5623         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5624
5625         /* Initialize list to save ELS buffers */
5626         INIT_LIST_HEAD(&phba->elsbuf);
5627
5628         /* Initialize FCF connection rec list */
5629         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5630
5631         /* Initialize OAS configuration list */
5632         spin_lock_init(&phba->devicelock);
5633         INIT_LIST_HEAD(&phba->luns);
5634
5635         return 0;
5636 }
5637
5638 /**
5639  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5640  * @phba: pointer to lpfc hba data structure.
5641  *
5642  * This routine is invoked to set up the driver internal resources after the
5643  * device specific resource setup to support the HBA device it attached to.
5644  *
5645  * Return codes
5646  *      0 - successful
5647  *      other values - error
5648  **/
5649 static int
5650 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5651 {
5652         int error;
5653
5654         /* Startup the kernel thread for this host adapter. */
5655         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5656                                           "lpfc_worker_%d", phba->brd_no);
5657         if (IS_ERR(phba->worker_thread)) {
5658                 error = PTR_ERR(phba->worker_thread);
5659                 return error;
5660         }
5661
5662         return 0;
5663 }
5664
5665 /**
5666  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5667  * @phba: pointer to lpfc hba data structure.
5668  *
5669  * This routine is invoked to unset the driver internal resources set up after
5670  * the device specific resource setup for supporting the HBA device it
5671  * attached to.
5672  **/
5673 static void
5674 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5675 {
5676         /* Stop kernel worker thread */
5677         kthread_stop(phba->worker_thread);
5678 }
5679
5680 /**
5681  * lpfc_free_iocb_list - Free iocb list.
5682  * @phba: pointer to lpfc hba data structure.
5683  *
5684  * This routine is invoked to free the driver's IOCB list and memory.
5685  **/
5686 static void
5687 lpfc_free_iocb_list(struct lpfc_hba *phba)
5688 {
5689         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5690
5691         spin_lock_irq(&phba->hbalock);
5692         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5693                                  &phba->lpfc_iocb_list, list) {
5694                 list_del(&iocbq_entry->list);
5695                 kfree(iocbq_entry);
5696                 phba->total_iocbq_bufs--;
5697         }
5698         spin_unlock_irq(&phba->hbalock);
5699
5700         return;
5701 }
5702
5703 /**
5704  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5705  * @phba: pointer to lpfc hba data structure.
5706  *
5707  * This routine is invoked to allocate and initizlize the driver's IOCB
5708  * list and set up the IOCB tag array accordingly.
5709  *
5710  * Return codes
5711  *      0 - successful
5712  *      other values - error
5713  **/
5714 static int
5715 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5716 {
5717         struct lpfc_iocbq *iocbq_entry = NULL;
5718         uint16_t iotag;
5719         int i;
5720
5721         /* Initialize and populate the iocb list per host.  */
5722         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5723         for (i = 0; i < iocb_count; i++) {
5724                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5725                 if (iocbq_entry == NULL) {
5726                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5727                                 "expected %d count. Unloading driver.\n",
5728                                 __func__, i, LPFC_IOCB_LIST_CNT);
5729                         goto out_free_iocbq;
5730                 }
5731
5732                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5733                 if (iotag == 0) {
5734                         kfree(iocbq_entry);
5735                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5736                                 "Unloading driver.\n", __func__);
5737                         goto out_free_iocbq;
5738                 }
5739                 iocbq_entry->sli4_lxritag = NO_XRI;
5740                 iocbq_entry->sli4_xritag = NO_XRI;
5741
5742                 spin_lock_irq(&phba->hbalock);
5743                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5744                 phba->total_iocbq_bufs++;
5745                 spin_unlock_irq(&phba->hbalock);
5746         }
5747
5748         return 0;
5749
5750 out_free_iocbq:
5751         lpfc_free_iocb_list(phba);
5752
5753         return -ENOMEM;
5754 }
5755
5756 /**
5757  * lpfc_free_sgl_list - Free a given sgl list.
5758  * @phba: pointer to lpfc hba data structure.
5759  * @sglq_list: pointer to the head of sgl list.
5760  *
5761  * This routine is invoked to free a give sgl list and memory.
5762  **/
5763 void
5764 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5765 {
5766         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5767
5768         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5769                 list_del(&sglq_entry->list);
5770                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5771                 kfree(sglq_entry);
5772         }
5773 }
5774
5775 /**
5776  * lpfc_free_els_sgl_list - Free els sgl list.
5777  * @phba: pointer to lpfc hba data structure.
5778  *
5779  * This routine is invoked to free the driver's els sgl list and memory.
5780  **/
5781 static void
5782 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5783 {
5784         LIST_HEAD(sglq_list);
5785         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5786
5787         /* Retrieve all els sgls from driver list */
5788         spin_lock_irq(&phba->hbalock);
5789         spin_lock(&pring->ring_lock);
5790         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5791         spin_unlock(&pring->ring_lock);
5792         spin_unlock_irq(&phba->hbalock);
5793
5794         /* Now free the sgl list */
5795         lpfc_free_sgl_list(phba, &sglq_list);
5796 }
5797
5798 /**
5799  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5800  * @phba: pointer to lpfc hba data structure.
5801  *
5802  * This routine is invoked to allocate the driver's active sgl memory.
5803  * This array will hold the sglq_entry's for active IOs.
5804  **/
5805 static int
5806 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5807 {
5808         int size;
5809         size = sizeof(struct lpfc_sglq *);
5810         size *= phba->sli4_hba.max_cfg_param.max_xri;
5811
5812         phba->sli4_hba.lpfc_sglq_active_list =
5813                 kzalloc(size, GFP_KERNEL);
5814         if (!phba->sli4_hba.lpfc_sglq_active_list)
5815                 return -ENOMEM;
5816         return 0;
5817 }
5818
5819 /**
5820  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5821  * @phba: pointer to lpfc hba data structure.
5822  *
5823  * This routine is invoked to walk through the array of active sglq entries
5824  * and free all of the resources.
5825  * This is just a place holder for now.
5826  **/
5827 static void
5828 lpfc_free_active_sgl(struct lpfc_hba *phba)
5829 {
5830         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5831 }
5832
5833 /**
5834  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5835  * @phba: pointer to lpfc hba data structure.
5836  *
5837  * This routine is invoked to allocate and initizlize the driver's sgl
5838  * list and set up the sgl xritag tag array accordingly.
5839  *
5840  **/
5841 static void
5842 lpfc_init_sgl_list(struct lpfc_hba *phba)
5843 {
5844         /* Initialize and populate the sglq list per host/VF. */
5845         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5846         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5847
5848         /* els xri-sgl book keeping */
5849         phba->sli4_hba.els_xri_cnt = 0;
5850
5851         /* scsi xri-buffer book keeping */
5852         phba->sli4_hba.scsi_xri_cnt = 0;
5853 }
5854
5855 /**
5856  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5857  * @phba: pointer to lpfc hba data structure.
5858  *
5859  * This routine is invoked to post rpi header templates to the
5860  * port for those SLI4 ports that do not support extents.  This routine
5861  * posts a PAGE_SIZE memory region to the port to hold up to
5862  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5863  * and should be called only when interrupts are disabled.
5864  *
5865  * Return codes
5866  *      0 - successful
5867  *      -ERROR - otherwise.
5868  **/
5869 int
5870 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5871 {
5872         int rc = 0;
5873         struct lpfc_rpi_hdr *rpi_hdr;
5874
5875         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5876         if (!phba->sli4_hba.rpi_hdrs_in_use)
5877                 return rc;
5878         if (phba->sli4_hba.extents_in_use)
5879                 return -EIO;
5880
5881         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5882         if (!rpi_hdr) {
5883                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5884                                 "0391 Error during rpi post operation\n");
5885                 lpfc_sli4_remove_rpis(phba);
5886                 rc = -ENODEV;
5887         }
5888
5889         return rc;
5890 }
5891
5892 /**
5893  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5894  * @phba: pointer to lpfc hba data structure.
5895  *
5896  * This routine is invoked to allocate a single 4KB memory region to
5897  * support rpis and stores them in the phba.  This single region
5898  * provides support for up to 64 rpis.  The region is used globally
5899  * by the device.
5900  *
5901  * Returns:
5902  *   A valid rpi hdr on success.
5903  *   A NULL pointer on any failure.
5904  **/
5905 struct lpfc_rpi_hdr *
5906 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5907 {
5908         uint16_t rpi_limit, curr_rpi_range;
5909         struct lpfc_dmabuf *dmabuf;
5910         struct lpfc_rpi_hdr *rpi_hdr;
5911         uint32_t rpi_count;
5912
5913         /*
5914          * If the SLI4 port supports extents, posting the rpi header isn't
5915          * required.  Set the expected maximum count and let the actual value
5916          * get set when extents are fully allocated.
5917          */
5918         if (!phba->sli4_hba.rpi_hdrs_in_use)
5919                 return NULL;
5920         if (phba->sli4_hba.extents_in_use)
5921                 return NULL;
5922
5923         /* The limit on the logical index is just the max_rpi count. */
5924         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5925         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5926
5927         spin_lock_irq(&phba->hbalock);
5928         /*
5929          * Establish the starting RPI in this header block.  The starting
5930          * rpi is normalized to a zero base because the physical rpi is
5931          * port based.
5932          */
5933         curr_rpi_range = phba->sli4_hba.next_rpi;
5934         spin_unlock_irq(&phba->hbalock);
5935
5936         /*
5937          * The port has a limited number of rpis. The increment here
5938          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5939          * and to allow the full max_rpi range per port.
5940          */
5941         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5942                 rpi_count = rpi_limit - curr_rpi_range;
5943         else
5944                 rpi_count = LPFC_RPI_HDR_COUNT;
5945
5946         if (!rpi_count)
5947                 return NULL;
5948         /*
5949          * First allocate the protocol header region for the port.  The
5950          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5951          */
5952         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5953         if (!dmabuf)
5954                 return NULL;
5955
5956         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5957                                            LPFC_HDR_TEMPLATE_SIZE,
5958                                            &dmabuf->phys, GFP_KERNEL);
5959         if (!dmabuf->virt) {
5960                 rpi_hdr = NULL;
5961                 goto err_free_dmabuf;
5962         }
5963
5964         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5965                 rpi_hdr = NULL;
5966                 goto err_free_coherent;
5967         }
5968
5969         /* Save the rpi header data for cleanup later. */
5970         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5971         if (!rpi_hdr)
5972                 goto err_free_coherent;
5973
5974         rpi_hdr->dmabuf = dmabuf;
5975         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5976         rpi_hdr->page_count = 1;
5977         spin_lock_irq(&phba->hbalock);
5978
5979         /* The rpi_hdr stores the logical index only. */
5980         rpi_hdr->start_rpi = curr_rpi_range;
5981         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5982
5983         /*
5984          * The next_rpi stores the next logical module-64 rpi value used
5985          * to post physical rpis in subsequent rpi postings.
5986          */
5987         phba->sli4_hba.next_rpi += rpi_count;
5988         spin_unlock_irq(&phba->hbalock);
5989         return rpi_hdr;
5990
5991  err_free_coherent:
5992         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5993                           dmabuf->virt, dmabuf->phys);
5994  err_free_dmabuf:
5995         kfree(dmabuf);
5996         return NULL;
5997 }
5998
5999 /**
6000  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6001  * @phba: pointer to lpfc hba data structure.
6002  *
6003  * This routine is invoked to remove all memory resources allocated
6004  * to support rpis for SLI4 ports not supporting extents. This routine
6005  * presumes the caller has released all rpis consumed by fabric or port
6006  * logins and is prepared to have the header pages removed.
6007  **/
6008 void
6009 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6010 {
6011         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6012
6013         if (!phba->sli4_hba.rpi_hdrs_in_use)
6014                 goto exit;
6015
6016         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6017                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6018                 list_del(&rpi_hdr->list);
6019                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6020                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6021                 kfree(rpi_hdr->dmabuf);
6022                 kfree(rpi_hdr);
6023         }
6024  exit:
6025         /* There are no rpis available to the port now. */
6026         phba->sli4_hba.next_rpi = 0;
6027 }
6028
6029 /**
6030  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6031  * @pdev: pointer to pci device data structure.
6032  *
6033  * This routine is invoked to allocate the driver hba data structure for an
6034  * HBA device. If the allocation is successful, the phba reference to the
6035  * PCI device data structure is set.
6036  *
6037  * Return codes
6038  *      pointer to @phba - successful
6039  *      NULL - error
6040  **/
6041 static struct lpfc_hba *
6042 lpfc_hba_alloc(struct pci_dev *pdev)
6043 {
6044         struct lpfc_hba *phba;
6045
6046         /* Allocate memory for HBA structure */
6047         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6048         if (!phba) {
6049                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6050                 return NULL;
6051         }
6052
6053         /* Set reference to PCI device in HBA structure */
6054         phba->pcidev = pdev;
6055
6056         /* Assign an unused board number */
6057         phba->brd_no = lpfc_get_instance();
6058         if (phba->brd_no < 0) {
6059                 kfree(phba);
6060                 return NULL;
6061         }
6062
6063         spin_lock_init(&phba->ct_ev_lock);
6064         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6065
6066         return phba;
6067 }
6068
6069 /**
6070  * lpfc_hba_free - Free driver hba data structure with a device.
6071  * @phba: pointer to lpfc hba data structure.
6072  *
6073  * This routine is invoked to free the driver hba data structure with an
6074  * HBA device.
6075  **/
6076 static void
6077 lpfc_hba_free(struct lpfc_hba *phba)
6078 {
6079         /* Release the driver assigned board number */
6080         idr_remove(&lpfc_hba_index, phba->brd_no);
6081
6082         /* Free memory allocated with sli rings */
6083         kfree(phba->sli.ring);
6084         phba->sli.ring = NULL;
6085
6086         kfree(phba);
6087         return;
6088 }
6089
6090 /**
6091  * lpfc_create_shost - Create hba physical port with associated scsi host.
6092  * @phba: pointer to lpfc hba data structure.
6093  *
6094  * This routine is invoked to create HBA physical port and associate a SCSI
6095  * host with it.
6096  *
6097  * Return codes
6098  *      0 - successful
6099  *      other values - error
6100  **/
6101 static int
6102 lpfc_create_shost(struct lpfc_hba *phba)
6103 {
6104         struct lpfc_vport *vport;
6105         struct Scsi_Host  *shost;
6106
6107         /* Initialize HBA FC structure */
6108         phba->fc_edtov = FF_DEF_EDTOV;
6109         phba->fc_ratov = FF_DEF_RATOV;
6110         phba->fc_altov = FF_DEF_ALTOV;
6111         phba->fc_arbtov = FF_DEF_ARBTOV;
6112
6113         atomic_set(&phba->sdev_cnt, 0);
6114         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6115         if (!vport)
6116                 return -ENODEV;
6117
6118         shost = lpfc_shost_from_vport(vport);
6119         phba->pport = vport;
6120         lpfc_debugfs_initialize(vport);
6121         /* Put reference to SCSI host to driver's device private data */
6122         pci_set_drvdata(phba->pcidev, shost);
6123
6124         return 0;
6125 }
6126
6127 /**
6128  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6129  * @phba: pointer to lpfc hba data structure.
6130  *
6131  * This routine is invoked to destroy HBA physical port and the associated
6132  * SCSI host.
6133  **/
6134 static void
6135 lpfc_destroy_shost(struct lpfc_hba *phba)
6136 {
6137         struct lpfc_vport *vport = phba->pport;
6138
6139         /* Destroy physical port that associated with the SCSI host */
6140         destroy_port(vport);
6141
6142         return;
6143 }
6144
6145 /**
6146  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6147  * @phba: pointer to lpfc hba data structure.
6148  * @shost: the shost to be used to detect Block guard settings.
6149  *
6150  * This routine sets up the local Block guard protocol settings for @shost.
6151  * This routine also allocates memory for debugging bg buffers.
6152  **/
6153 static void
6154 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6155 {
6156         uint32_t old_mask;
6157         uint32_t old_guard;
6158
6159         int pagecnt = 10;
6160         if (lpfc_prot_mask && lpfc_prot_guard) {
6161                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6162                                 "1478 Registering BlockGuard with the "
6163                                 "SCSI layer\n");
6164
6165                 old_mask = lpfc_prot_mask;
6166                 old_guard = lpfc_prot_guard;
6167
6168                 /* Only allow supported values */
6169                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6170                         SHOST_DIX_TYPE0_PROTECTION |
6171                         SHOST_DIX_TYPE1_PROTECTION);
6172                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6173
6174                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6175                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6176                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6177
6178                 if (lpfc_prot_mask && lpfc_prot_guard) {
6179                         if ((old_mask != lpfc_prot_mask) ||
6180                                 (old_guard != lpfc_prot_guard))
6181                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6182                                         "1475 Registering BlockGuard with the "
6183                                         "SCSI layer: mask %d  guard %d\n",
6184                                         lpfc_prot_mask, lpfc_prot_guard);
6185
6186                         scsi_host_set_prot(shost, lpfc_prot_mask);
6187                         scsi_host_set_guard(shost, lpfc_prot_guard);
6188                 } else
6189                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6190                                 "1479 Not Registering BlockGuard with the SCSI "
6191                                 "layer, Bad protection parameters: %d %d\n",
6192                                 old_mask, old_guard);
6193         }
6194
6195         if (!_dump_buf_data) {
6196                 while (pagecnt) {
6197                         spin_lock_init(&_dump_buf_lock);
6198                         _dump_buf_data =
6199                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6200                         if (_dump_buf_data) {
6201                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6202                                         "9043 BLKGRD: allocated %d pages for "
6203                                        "_dump_buf_data at 0x%p\n",
6204                                        (1 << pagecnt), _dump_buf_data);
6205                                 _dump_buf_data_order = pagecnt;
6206                                 memset(_dump_buf_data, 0,
6207                                        ((1 << PAGE_SHIFT) << pagecnt));
6208                                 break;
6209                         } else
6210                                 --pagecnt;
6211                 }
6212                 if (!_dump_buf_data_order)
6213                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6214                                 "9044 BLKGRD: ERROR unable to allocate "
6215                                "memory for hexdump\n");
6216         } else
6217                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6218                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6219                        "\n", _dump_buf_data);
6220         if (!_dump_buf_dif) {
6221                 while (pagecnt) {
6222                         _dump_buf_dif =
6223                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6224                         if (_dump_buf_dif) {
6225                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6226                                         "9046 BLKGRD: allocated %d pages for "
6227                                        "_dump_buf_dif at 0x%p\n",
6228                                        (1 << pagecnt), _dump_buf_dif);
6229                                 _dump_buf_dif_order = pagecnt;
6230                                 memset(_dump_buf_dif, 0,
6231                                        ((1 << PAGE_SHIFT) << pagecnt));
6232                                 break;
6233                         } else
6234                                 --pagecnt;
6235                 }
6236                 if (!_dump_buf_dif_order)
6237                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6238                         "9047 BLKGRD: ERROR unable to allocate "
6239                                "memory for hexdump\n");
6240         } else
6241                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6242                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6243                        _dump_buf_dif);
6244 }
6245
6246 /**
6247  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6248  * @phba: pointer to lpfc hba data structure.
6249  *
6250  * This routine is invoked to perform all the necessary post initialization
6251  * setup for the device.
6252  **/
6253 static void
6254 lpfc_post_init_setup(struct lpfc_hba *phba)
6255 {
6256         struct Scsi_Host  *shost;
6257         struct lpfc_adapter_event_header adapter_event;
6258
6259         /* Get the default values for Model Name and Description */
6260         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6261
6262         /*
6263          * hba setup may have changed the hba_queue_depth so we need to
6264          * adjust the value of can_queue.
6265          */
6266         shost = pci_get_drvdata(phba->pcidev);
6267         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6268         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6269                 lpfc_setup_bg(phba, shost);
6270
6271         lpfc_host_attrib_init(shost);
6272
6273         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6274                 spin_lock_irq(shost->host_lock);
6275                 lpfc_poll_start_timer(phba);
6276                 spin_unlock_irq(shost->host_lock);
6277         }
6278
6279         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6280                         "0428 Perform SCSI scan\n");
6281         /* Send board arrival event to upper layer */
6282         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6283         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6284         fc_host_post_vendor_event(shost, fc_get_event_number(),
6285                                   sizeof(adapter_event),
6286                                   (char *) &adapter_event,
6287                                   LPFC_NL_VENDOR_ID);
6288         return;
6289 }
6290
6291 /**
6292  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6293  * @phba: pointer to lpfc hba data structure.
6294  *
6295  * This routine is invoked to set up the PCI device memory space for device
6296  * with SLI-3 interface spec.
6297  *
6298  * Return codes
6299  *      0 - successful
6300  *      other values - error
6301  **/
6302 static int
6303 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6304 {
6305         struct pci_dev *pdev;
6306         unsigned long bar0map_len, bar2map_len;
6307         int i, hbq_count;
6308         void *ptr;
6309         int error = -ENODEV;
6310
6311         /* Obtain PCI device reference */
6312         if (!phba->pcidev)
6313                 return error;
6314         else
6315                 pdev = phba->pcidev;
6316
6317         /* Set the device DMA mask size */
6318         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6319          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6320                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6321                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6322                         return error;
6323                 }
6324         }
6325
6326         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6327          * required by each mapping.
6328          */
6329         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6330         bar0map_len = pci_resource_len(pdev, 0);
6331
6332         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6333         bar2map_len = pci_resource_len(pdev, 2);
6334
6335         /* Map HBA SLIM to a kernel virtual address. */
6336         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6337         if (!phba->slim_memmap_p) {
6338                 dev_printk(KERN_ERR, &pdev->dev,
6339                            "ioremap failed for SLIM memory.\n");
6340                 goto out;
6341         }
6342
6343         /* Map HBA Control Registers to a kernel virtual address. */
6344         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6345         if (!phba->ctrl_regs_memmap_p) {
6346                 dev_printk(KERN_ERR, &pdev->dev,
6347                            "ioremap failed for HBA control registers.\n");
6348                 goto out_iounmap_slim;
6349         }
6350
6351         /* Allocate memory for SLI-2 structures */
6352         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6353                                                 &phba->slim2p.phys, GFP_KERNEL);
6354         if (!phba->slim2p.virt)
6355                 goto out_iounmap;
6356
6357         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6358         phba->mbox_ext = (phba->slim2p.virt +
6359                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6360         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6361         phba->IOCBs = (phba->slim2p.virt +
6362                        offsetof(struct lpfc_sli2_slim, IOCBs));
6363
6364         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6365                                                  lpfc_sli_hbq_size(),
6366                                                  &phba->hbqslimp.phys,
6367                                                  GFP_KERNEL);
6368         if (!phba->hbqslimp.virt)
6369                 goto out_free_slim;
6370
6371         hbq_count = lpfc_sli_hbq_count();
6372         ptr = phba->hbqslimp.virt;
6373         for (i = 0; i < hbq_count; ++i) {
6374                 phba->hbqs[i].hbq_virt = ptr;
6375                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6376                 ptr += (lpfc_hbq_defs[i]->entry_count *
6377                         sizeof(struct lpfc_hbq_entry));
6378         }
6379         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6380         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6381
6382         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6383
6384         INIT_LIST_HEAD(&phba->rb_pend_list);
6385
6386         phba->MBslimaddr = phba->slim_memmap_p;
6387         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6388         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6389         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6390         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6391
6392         return 0;
6393
6394 out_free_slim:
6395         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6396                           phba->slim2p.virt, phba->slim2p.phys);
6397 out_iounmap:
6398         iounmap(phba->ctrl_regs_memmap_p);
6399 out_iounmap_slim:
6400         iounmap(phba->slim_memmap_p);
6401 out:
6402         return error;
6403 }
6404
6405 /**
6406  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6407  * @phba: pointer to lpfc hba data structure.
6408  *
6409  * This routine is invoked to unset the PCI device memory space for device
6410  * with SLI-3 interface spec.
6411  **/
6412 static void
6413 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6414 {
6415         struct pci_dev *pdev;
6416
6417         /* Obtain PCI device reference */
6418         if (!phba->pcidev)
6419                 return;
6420         else
6421                 pdev = phba->pcidev;
6422
6423         /* Free coherent DMA memory allocated */
6424         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6425                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6426         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6427                           phba->slim2p.virt, phba->slim2p.phys);
6428
6429         /* I/O memory unmap */
6430         iounmap(phba->ctrl_regs_memmap_p);
6431         iounmap(phba->slim_memmap_p);
6432
6433         return;
6434 }
6435
6436 /**
6437  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6438  * @phba: pointer to lpfc hba data structure.
6439  *
6440  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6441  * done and check status.
6442  *
6443  * Return 0 if successful, otherwise -ENODEV.
6444  **/
6445 int
6446 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6447 {
6448         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6449         struct lpfc_register reg_data;
6450         int i, port_error = 0;
6451         uint32_t if_type;
6452
6453         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6454         memset(&reg_data, 0, sizeof(reg_data));
6455         if (!phba->sli4_hba.PSMPHRregaddr)
6456                 return -ENODEV;
6457
6458         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6459         for (i = 0; i < 3000; i++) {
6460                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6461                         &portsmphr_reg.word0) ||
6462                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6463                         /* Port has a fatal POST error, break out */
6464                         port_error = -ENODEV;
6465                         break;
6466                 }
6467                 if (LPFC_POST_STAGE_PORT_READY ==
6468                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6469                         break;
6470                 msleep(10);
6471         }
6472
6473         /*
6474          * If there was a port error during POST, then don't proceed with
6475          * other register reads as the data may not be valid.  Just exit.
6476          */
6477         if (port_error) {
6478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6479                         "1408 Port Failed POST - portsmphr=0x%x, "
6480                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6481                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6482                         portsmphr_reg.word0,
6483                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6484                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6485                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6486                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6487                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6488                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6489                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6490                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6491         } else {
6492                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6493                                 "2534 Device Info: SLIFamily=0x%x, "
6494                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6495                                 "SLIHint_2=0x%x, FT=0x%x\n",
6496                                 bf_get(lpfc_sli_intf_sli_family,
6497                                        &phba->sli4_hba.sli_intf),
6498                                 bf_get(lpfc_sli_intf_slirev,
6499                                        &phba->sli4_hba.sli_intf),
6500                                 bf_get(lpfc_sli_intf_if_type,
6501                                        &phba->sli4_hba.sli_intf),
6502                                 bf_get(lpfc_sli_intf_sli_hint1,
6503                                        &phba->sli4_hba.sli_intf),
6504                                 bf_get(lpfc_sli_intf_sli_hint2,
6505                                        &phba->sli4_hba.sli_intf),
6506                                 bf_get(lpfc_sli_intf_func_type,
6507                                        &phba->sli4_hba.sli_intf));
6508                 /*
6509                  * Check for other Port errors during the initialization
6510                  * process.  Fail the load if the port did not come up
6511                  * correctly.
6512                  */
6513                 if_type = bf_get(lpfc_sli_intf_if_type,
6514                                  &phba->sli4_hba.sli_intf);
6515                 switch (if_type) {
6516                 case LPFC_SLI_INTF_IF_TYPE_0:
6517                         phba->sli4_hba.ue_mask_lo =
6518                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6519                         phba->sli4_hba.ue_mask_hi =
6520                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6521                         uerrlo_reg.word0 =
6522                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6523                         uerrhi_reg.word0 =
6524                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6525                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6526                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6527                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6528                                                 "1422 Unrecoverable Error "
6529                                                 "Detected during POST "
6530                                                 "uerr_lo_reg=0x%x, "
6531                                                 "uerr_hi_reg=0x%x, "
6532                                                 "ue_mask_lo_reg=0x%x, "
6533                                                 "ue_mask_hi_reg=0x%x\n",
6534                                                 uerrlo_reg.word0,
6535                                                 uerrhi_reg.word0,
6536                                                 phba->sli4_hba.ue_mask_lo,
6537                                                 phba->sli4_hba.ue_mask_hi);
6538                                 port_error = -ENODEV;
6539                         }
6540                         break;
6541                 case LPFC_SLI_INTF_IF_TYPE_2:
6542                         /* Final checks.  The port status should be clean. */
6543                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6544                                 &reg_data.word0) ||
6545                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6546                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6547                                 phba->work_status[0] =
6548                                         readl(phba->sli4_hba.u.if_type2.
6549                                               ERR1regaddr);
6550                                 phba->work_status[1] =
6551                                         readl(phba->sli4_hba.u.if_type2.
6552                                               ERR2regaddr);
6553                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6554                                         "2888 Unrecoverable port error "
6555                                         "following POST: port status reg "
6556                                         "0x%x, port_smphr reg 0x%x, "
6557                                         "error 1=0x%x, error 2=0x%x\n",
6558                                         reg_data.word0,
6559                                         portsmphr_reg.word0,
6560                                         phba->work_status[0],
6561                                         phba->work_status[1]);
6562                                 port_error = -ENODEV;
6563                         }
6564                         break;
6565                 case LPFC_SLI_INTF_IF_TYPE_1:
6566                 default:
6567                         break;
6568                 }
6569         }
6570         return port_error;
6571 }
6572
6573 /**
6574  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6575  * @phba: pointer to lpfc hba data structure.
6576  * @if_type:  The SLI4 interface type getting configured.
6577  *
6578  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6579  * memory map.
6580  **/
6581 static void
6582 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6583 {
6584         switch (if_type) {
6585         case LPFC_SLI_INTF_IF_TYPE_0:
6586                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6587                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6588                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6589                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6590                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6591                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6592                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6593                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6594                 phba->sli4_hba.SLIINTFregaddr =
6595                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6596                 break;
6597         case LPFC_SLI_INTF_IF_TYPE_2:
6598                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6599                         phba->sli4_hba.conf_regs_memmap_p +
6600                                                 LPFC_CTL_PORT_ER1_OFFSET;
6601                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6602                         phba->sli4_hba.conf_regs_memmap_p +
6603                                                 LPFC_CTL_PORT_ER2_OFFSET;
6604                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6605                         phba->sli4_hba.conf_regs_memmap_p +
6606                                                 LPFC_CTL_PORT_CTL_OFFSET;
6607                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6608                         phba->sli4_hba.conf_regs_memmap_p +
6609                                                 LPFC_CTL_PORT_STA_OFFSET;
6610                 phba->sli4_hba.SLIINTFregaddr =
6611                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6612                 phba->sli4_hba.PSMPHRregaddr =
6613                         phba->sli4_hba.conf_regs_memmap_p +
6614                                                 LPFC_CTL_PORT_SEM_OFFSET;
6615                 phba->sli4_hba.RQDBregaddr =
6616                         phba->sli4_hba.conf_regs_memmap_p +
6617                                                 LPFC_ULP0_RQ_DOORBELL;
6618                 phba->sli4_hba.WQDBregaddr =
6619                         phba->sli4_hba.conf_regs_memmap_p +
6620                                                 LPFC_ULP0_WQ_DOORBELL;
6621                 phba->sli4_hba.EQCQDBregaddr =
6622                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6623                 phba->sli4_hba.MQDBregaddr =
6624                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6625                 phba->sli4_hba.BMBXregaddr =
6626                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6627                 break;
6628         case LPFC_SLI_INTF_IF_TYPE_1:
6629         default:
6630                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6631                            "FATAL - unsupported SLI4 interface type - %d\n",
6632                            if_type);
6633                 break;
6634         }
6635 }
6636
6637 /**
6638  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6639  * @phba: pointer to lpfc hba data structure.
6640  *
6641  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6642  * memory map.
6643  **/
6644 static void
6645 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6646 {
6647         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6648                 LPFC_SLIPORT_IF0_SMPHR;
6649         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6650                 LPFC_HST_ISR0;
6651         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6652                 LPFC_HST_IMR0;
6653         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6654                 LPFC_HST_ISCR0;
6655 }
6656
6657 /**
6658  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6659  * @phba: pointer to lpfc hba data structure.
6660  * @vf: virtual function number
6661  *
6662  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6663  * based on the given viftual function number, @vf.
6664  *
6665  * Return 0 if successful, otherwise -ENODEV.
6666  **/
6667 static int
6668 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6669 {
6670         if (vf > LPFC_VIR_FUNC_MAX)
6671                 return -ENODEV;
6672
6673         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6674                                 vf * LPFC_VFR_PAGE_SIZE +
6675                                         LPFC_ULP0_RQ_DOORBELL);
6676         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6677                                 vf * LPFC_VFR_PAGE_SIZE +
6678                                         LPFC_ULP0_WQ_DOORBELL);
6679         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6680                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6681         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6682                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6683         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6684                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6685         return 0;
6686 }
6687
6688 /**
6689  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6690  * @phba: pointer to lpfc hba data structure.
6691  *
6692  * This routine is invoked to create the bootstrap mailbox
6693  * region consistent with the SLI-4 interface spec.  This
6694  * routine allocates all memory necessary to communicate
6695  * mailbox commands to the port and sets up all alignment
6696  * needs.  No locks are expected to be held when calling
6697  * this routine.
6698  *
6699  * Return codes
6700  *      0 - successful
6701  *      -ENOMEM - could not allocated memory.
6702  **/
6703 static int
6704 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6705 {
6706         uint32_t bmbx_size;
6707         struct lpfc_dmabuf *dmabuf;
6708         struct dma_address *dma_address;
6709         uint32_t pa_addr;
6710         uint64_t phys_addr;
6711
6712         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6713         if (!dmabuf)
6714                 return -ENOMEM;
6715
6716         /*
6717          * The bootstrap mailbox region is comprised of 2 parts
6718          * plus an alignment restriction of 16 bytes.
6719          */
6720         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6721         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6722                                            &dmabuf->phys, GFP_KERNEL);
6723         if (!dmabuf->virt) {
6724                 kfree(dmabuf);
6725                 return -ENOMEM;
6726         }
6727
6728         /*
6729          * Initialize the bootstrap mailbox pointers now so that the register
6730          * operations are simple later.  The mailbox dma address is required
6731          * to be 16-byte aligned.  Also align the virtual memory as each
6732          * maibox is copied into the bmbx mailbox region before issuing the
6733          * command to the port.
6734          */
6735         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6736         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6737
6738         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6739                                               LPFC_ALIGN_16_BYTE);
6740         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6741                                               LPFC_ALIGN_16_BYTE);
6742
6743         /*
6744          * Set the high and low physical addresses now.  The SLI4 alignment
6745          * requirement is 16 bytes and the mailbox is posted to the port
6746          * as two 30-bit addresses.  The other data is a bit marking whether
6747          * the 30-bit address is the high or low address.
6748          * Upcast bmbx aphys to 64bits so shift instruction compiles
6749          * clean on 32 bit machines.
6750          */
6751         dma_address = &phba->sli4_hba.bmbx.dma_address;
6752         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6753         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6754         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6755                                            LPFC_BMBX_BIT1_ADDR_HI);
6756
6757         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6758         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6759                                            LPFC_BMBX_BIT1_ADDR_LO);
6760         return 0;
6761 }
6762
6763 /**
6764  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6765  * @phba: pointer to lpfc hba data structure.
6766  *
6767  * This routine is invoked to teardown the bootstrap mailbox
6768  * region and release all host resources. This routine requires
6769  * the caller to ensure all mailbox commands recovered, no
6770  * additional mailbox comands are sent, and interrupts are disabled
6771  * before calling this routine.
6772  *
6773  **/
6774 static void
6775 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6776 {
6777         dma_free_coherent(&phba->pcidev->dev,
6778                           phba->sli4_hba.bmbx.bmbx_size,
6779                           phba->sli4_hba.bmbx.dmabuf->virt,
6780                           phba->sli4_hba.bmbx.dmabuf->phys);
6781
6782         kfree(phba->sli4_hba.bmbx.dmabuf);
6783         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6784 }
6785
6786 /**
6787  * lpfc_sli4_read_config - Get the config parameters.
6788  * @phba: pointer to lpfc hba data structure.
6789  *
6790  * This routine is invoked to read the configuration parameters from the HBA.
6791  * The configuration parameters are used to set the base and maximum values
6792  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6793  * allocation for the port.
6794  *
6795  * Return codes
6796  *      0 - successful
6797  *      -ENOMEM - No available memory
6798  *      -EIO - The mailbox failed to complete successfully.
6799  **/
6800 int
6801 lpfc_sli4_read_config(struct lpfc_hba *phba)
6802 {
6803         LPFC_MBOXQ_t *pmb;
6804         struct lpfc_mbx_read_config *rd_config;
6805         union  lpfc_sli4_cfg_shdr *shdr;
6806         uint32_t shdr_status, shdr_add_status;
6807         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6808         struct lpfc_rsrc_desc_fcfcoe *desc;
6809         char *pdesc_0;
6810         int length, i, rc = 0, rc2;
6811
6812         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6813         if (!pmb) {
6814                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6815                                 "2011 Unable to allocate memory for issuing "
6816                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6817                 return -ENOMEM;
6818         }
6819
6820         lpfc_read_config(phba, pmb);
6821
6822         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6823         if (rc != MBX_SUCCESS) {
6824                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6825                         "2012 Mailbox failed , mbxCmd x%x "
6826                         "READ_CONFIG, mbxStatus x%x\n",
6827                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6828                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6829                 rc = -EIO;
6830         } else {
6831                 rd_config = &pmb->u.mqe.un.rd_config;
6832                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6833                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6834                         phba->sli4_hba.lnk_info.lnk_tp =
6835                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6836                         phba->sli4_hba.lnk_info.lnk_no =
6837                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6838                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6839                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6840                                         phba->sli4_hba.lnk_info.lnk_tp,
6841                                         phba->sli4_hba.lnk_info.lnk_no);
6842                 } else
6843                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6844                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6845                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6846                 phba->sli4_hba.extents_in_use =
6847                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6848                 phba->sli4_hba.max_cfg_param.max_xri =
6849                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6850                 phba->sli4_hba.max_cfg_param.xri_base =
6851                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6852                 phba->sli4_hba.max_cfg_param.max_vpi =
6853                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6854                 phba->sli4_hba.max_cfg_param.vpi_base =
6855                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6856                 phba->sli4_hba.max_cfg_param.max_rpi =
6857                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6858                 phba->sli4_hba.max_cfg_param.rpi_base =
6859                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6860                 phba->sli4_hba.max_cfg_param.max_vfi =
6861                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6862                 phba->sli4_hba.max_cfg_param.vfi_base =
6863                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6864                 phba->sli4_hba.max_cfg_param.max_fcfi =
6865                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6866                 phba->sli4_hba.max_cfg_param.max_eq =
6867                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6868                 phba->sli4_hba.max_cfg_param.max_rq =
6869                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6870                 phba->sli4_hba.max_cfg_param.max_wq =
6871                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6872                 phba->sli4_hba.max_cfg_param.max_cq =
6873                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6874                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6875                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6876                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6877                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6878                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6879                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6880                 phba->max_vports = phba->max_vpi;
6881                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6882                                 "2003 cfg params Extents? %d "
6883                                 "XRI(B:%d M:%d), "
6884                                 "VPI(B:%d M:%d) "
6885                                 "VFI(B:%d M:%d) "
6886                                 "RPI(B:%d M:%d) "
6887                                 "FCFI(Count:%d)\n",
6888                                 phba->sli4_hba.extents_in_use,
6889                                 phba->sli4_hba.max_cfg_param.xri_base,
6890                                 phba->sli4_hba.max_cfg_param.max_xri,
6891                                 phba->sli4_hba.max_cfg_param.vpi_base,
6892                                 phba->sli4_hba.max_cfg_param.max_vpi,
6893                                 phba->sli4_hba.max_cfg_param.vfi_base,
6894                                 phba->sli4_hba.max_cfg_param.max_vfi,
6895                                 phba->sli4_hba.max_cfg_param.rpi_base,
6896                                 phba->sli4_hba.max_cfg_param.max_rpi,
6897                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6898         }
6899
6900         if (rc)
6901                 goto read_cfg_out;
6902
6903         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6904         length = phba->sli4_hba.max_cfg_param.max_xri -
6905                         lpfc_sli4_get_els_iocb_cnt(phba);
6906         if (phba->cfg_hba_queue_depth > length) {
6907                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6908                                 "3361 HBA queue depth changed from %d to %d\n",
6909                                 phba->cfg_hba_queue_depth, length);
6910                 phba->cfg_hba_queue_depth = length;
6911         }
6912
6913         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6914             LPFC_SLI_INTF_IF_TYPE_2)
6915                 goto read_cfg_out;
6916
6917         /* get the pf# and vf# for SLI4 if_type 2 port */
6918         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6919                   sizeof(struct lpfc_sli4_cfg_mhdr));
6920         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6921                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6922                          length, LPFC_SLI4_MBX_EMBED);
6923
6924         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6925         shdr = (union lpfc_sli4_cfg_shdr *)
6926                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6927         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6928         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6929         if (rc2 || shdr_status || shdr_add_status) {
6930                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6931                                 "3026 Mailbox failed , mbxCmd x%x "
6932                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6933                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6934                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6935                 goto read_cfg_out;
6936         }
6937
6938         /* search for fc_fcoe resrouce descriptor */
6939         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6940
6941         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6942         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6943         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6944         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6945                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6946         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6947                 goto read_cfg_out;
6948
6949         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6950                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6951                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6952                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6953                         phba->sli4_hba.iov.pf_number =
6954                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6955                         phba->sli4_hba.iov.vf_number =
6956                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6957                         break;
6958                 }
6959         }
6960
6961         if (i < LPFC_RSRC_DESC_MAX_NUM)
6962                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6963                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6964                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6965                                 phba->sli4_hba.iov.vf_number);
6966         else
6967                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6968                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6969                                 "Resrouce Descriptor:x%x\n",
6970                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6971
6972 read_cfg_out:
6973         mempool_free(pmb, phba->mbox_mem_pool);
6974         return rc;
6975 }
6976
6977 /**
6978  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6979  * @phba: pointer to lpfc hba data structure.
6980  *
6981  * This routine is invoked to setup the port-side endian order when
6982  * the port if_type is 0.  This routine has no function for other
6983  * if_types.
6984  *
6985  * Return codes
6986  *      0 - successful
6987  *      -ENOMEM - No available memory
6988  *      -EIO - The mailbox failed to complete successfully.
6989  **/
6990 static int
6991 lpfc_setup_endian_order(struct lpfc_hba *phba)
6992 {
6993         LPFC_MBOXQ_t *mboxq;
6994         uint32_t if_type, rc = 0;
6995         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6996                                       HOST_ENDIAN_HIGH_WORD1};
6997
6998         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6999         switch (if_type) {
7000         case LPFC_SLI_INTF_IF_TYPE_0:
7001                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7002                                                        GFP_KERNEL);
7003                 if (!mboxq) {
7004                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7005                                         "0492 Unable to allocate memory for "
7006                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7007                                         "command\n");
7008                         return -ENOMEM;
7009                 }
7010
7011                 /*
7012                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7013                  * two words to contain special data values and no other data.
7014                  */
7015                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7016                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7017                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7018                 if (rc != MBX_SUCCESS) {
7019                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7020                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7021                                         "failed with status x%x\n",
7022                                         rc);
7023                         rc = -EIO;
7024                 }
7025                 mempool_free(mboxq, phba->mbox_mem_pool);
7026                 break;
7027         case LPFC_SLI_INTF_IF_TYPE_2:
7028         case LPFC_SLI_INTF_IF_TYPE_1:
7029         default:
7030                 break;
7031         }
7032         return rc;
7033 }
7034
7035 /**
7036  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7037  * @phba: pointer to lpfc hba data structure.
7038  *
7039  * This routine is invoked to check the user settable queue counts for EQs and
7040  * CQs. after this routine is called the counts will be set to valid values that
7041  * adhere to the constraints of the system's interrupt vectors and the port's
7042  * queue resources.
7043  *
7044  * Return codes
7045  *      0 - successful
7046  *      -ENOMEM - No available memory
7047  **/
7048 static int
7049 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7050 {
7051         int cfg_fcp_io_channel;
7052         uint32_t cpu;
7053         uint32_t i = 0;
7054         int fof_vectors = phba->cfg_fof ? 1 : 0;
7055
7056         /*
7057          * Sanity check for configured queue parameters against the run-time
7058          * device parameters
7059          */
7060
7061         /* Sanity check on HBA EQ parameters */
7062         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7063
7064         /* It doesn't make sense to have more io channels then online CPUs */
7065         for_each_present_cpu(cpu) {
7066                 if (cpu_online(cpu))
7067                         i++;
7068         }
7069         phba->sli4_hba.num_online_cpu = i;
7070         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7071         phba->sli4_hba.curr_disp_cpu = 0;
7072
7073         if (i < cfg_fcp_io_channel) {
7074                 lpfc_printf_log(phba,
7075                                 KERN_ERR, LOG_INIT,
7076                                 "3188 Reducing IO channels to match number of "
7077                                 "online CPUs: from %d to %d\n",
7078                                 cfg_fcp_io_channel, i);
7079                 cfg_fcp_io_channel = i;
7080         }
7081
7082         if (cfg_fcp_io_channel + fof_vectors >
7083             phba->sli4_hba.max_cfg_param.max_eq) {
7084                 if (phba->sli4_hba.max_cfg_param.max_eq <
7085                     LPFC_FCP_IO_CHAN_MIN) {
7086                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7087                                         "2574 Not enough EQs (%d) from the "
7088                                         "pci function for supporting FCP "
7089                                         "EQs (%d)\n",
7090                                         phba->sli4_hba.max_cfg_param.max_eq,
7091                                         phba->cfg_fcp_io_channel);
7092                         goto out_error;
7093                 }
7094                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7095                                 "2575 Reducing IO channels to match number of "
7096                                 "available EQs: from %d to %d\n",
7097                                 cfg_fcp_io_channel,
7098                                 phba->sli4_hba.max_cfg_param.max_eq);
7099                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7100                         fof_vectors;
7101         }
7102
7103         /* The actual number of FCP event queues adopted */
7104         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7105
7106         /* Get EQ depth from module parameter, fake the default for now */
7107         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7108         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7109
7110         /* Get CQ depth from module parameter, fake the default for now */
7111         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7112         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7113
7114         return 0;
7115 out_error:
7116         return -ENOMEM;
7117 }
7118
7119 /**
7120  * lpfc_sli4_queue_create - Create all the SLI4 queues
7121  * @phba: pointer to lpfc hba data structure.
7122  *
7123  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7124  * operation. For each SLI4 queue type, the parameters such as queue entry
7125  * count (queue depth) shall be taken from the module parameter. For now,
7126  * we just use some constant number as place holder.
7127  *
7128  * Return codes
7129  *      0 - successful
7130  *      -ENOMEM - No availble memory
7131  *      -EIO - The mailbox failed to complete successfully.
7132  **/
7133 int
7134 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7135 {
7136         struct lpfc_queue *qdesc;
7137         int idx;
7138
7139         /*
7140          * Create HBA Record arrays.
7141          */
7142         if (!phba->cfg_fcp_io_channel)
7143                 return -ERANGE;
7144
7145         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7146         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7147         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7148         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7149         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7150         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7151
7152         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7153                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7154         if (!phba->sli4_hba.hba_eq) {
7155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7156                         "2576 Failed allocate memory for "
7157                         "fast-path EQ record array\n");
7158                 goto out_error;
7159         }
7160
7161         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7162                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7163         if (!phba->sli4_hba.fcp_cq) {
7164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7165                                 "2577 Failed allocate memory for fast-path "
7166                                 "CQ record array\n");
7167                 goto out_error;
7168         }
7169
7170         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7171                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7172         if (!phba->sli4_hba.fcp_wq) {
7173                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7174                                 "2578 Failed allocate memory for fast-path "
7175                                 "WQ record array\n");
7176                 goto out_error;
7177         }
7178
7179         /*
7180          * Since the first EQ can have multiple CQs associated with it,
7181          * this array is used to quickly see if we have a FCP fast-path
7182          * CQ match.
7183          */
7184         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7185                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7186         if (!phba->sli4_hba.fcp_cq_map) {
7187                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7188                                 "2545 Failed allocate memory for fast-path "
7189                                 "CQ map\n");
7190                 goto out_error;
7191         }
7192
7193         /*
7194          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7195          * how many EQs to create.
7196          */
7197         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7198
7199                 /* Create EQs */
7200                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7201                                               phba->sli4_hba.eq_ecount);
7202                 if (!qdesc) {
7203                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7204                                         "0497 Failed allocate EQ (%d)\n", idx);
7205                         goto out_error;
7206                 }
7207                 phba->sli4_hba.hba_eq[idx] = qdesc;
7208
7209                 /* Create Fast Path FCP CQs */
7210                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7211                                               phba->sli4_hba.cq_ecount);
7212                 if (!qdesc) {
7213                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7214                                         "0499 Failed allocate fast-path FCP "
7215                                         "CQ (%d)\n", idx);
7216                         goto out_error;
7217                 }
7218                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7219
7220                 /* Create Fast Path FCP WQs */
7221                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7222                                               phba->sli4_hba.wq_ecount);
7223                 if (!qdesc) {
7224                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7225                                         "0503 Failed allocate fast-path FCP "
7226                                         "WQ (%d)\n", idx);
7227                         goto out_error;
7228                 }
7229                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7230         }
7231
7232
7233         /*
7234          * Create Slow Path Completion Queues (CQs)
7235          */
7236
7237         /* Create slow-path Mailbox Command Complete Queue */
7238         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7239                                       phba->sli4_hba.cq_ecount);
7240         if (!qdesc) {
7241                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7242                                 "0500 Failed allocate slow-path mailbox CQ\n");
7243                 goto out_error;
7244         }
7245         phba->sli4_hba.mbx_cq = qdesc;
7246
7247         /* Create slow-path ELS Complete Queue */
7248         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7249                                       phba->sli4_hba.cq_ecount);
7250         if (!qdesc) {
7251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7252                                 "0501 Failed allocate slow-path ELS CQ\n");
7253                 goto out_error;
7254         }
7255         phba->sli4_hba.els_cq = qdesc;
7256
7257
7258         /*
7259          * Create Slow Path Work Queues (WQs)
7260          */
7261
7262         /* Create Mailbox Command Queue */
7263
7264         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7265                                       phba->sli4_hba.mq_ecount);
7266         if (!qdesc) {
7267                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7268                                 "0505 Failed allocate slow-path MQ\n");
7269                 goto out_error;
7270         }
7271         phba->sli4_hba.mbx_wq = qdesc;
7272
7273         /*
7274          * Create ELS Work Queues
7275          */
7276
7277         /* Create slow-path ELS Work Queue */
7278         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7279                                       phba->sli4_hba.wq_ecount);
7280         if (!qdesc) {
7281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7282                                 "0504 Failed allocate slow-path ELS WQ\n");
7283                 goto out_error;
7284         }
7285         phba->sli4_hba.els_wq = qdesc;
7286
7287         /*
7288          * Create Receive Queue (RQ)
7289          */
7290
7291         /* Create Receive Queue for header */
7292         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7293                                       phba->sli4_hba.rq_ecount);
7294         if (!qdesc) {
7295                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7296                                 "0506 Failed allocate receive HRQ\n");
7297                 goto out_error;
7298         }
7299         phba->sli4_hba.hdr_rq = qdesc;
7300
7301         /* Create Receive Queue for data */
7302         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7303                                       phba->sli4_hba.rq_ecount);
7304         if (!qdesc) {
7305                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7306                                 "0507 Failed allocate receive DRQ\n");
7307                 goto out_error;
7308         }
7309         phba->sli4_hba.dat_rq = qdesc;
7310
7311         /* Create the Queues needed for Flash Optimized Fabric operations */
7312         if (phba->cfg_fof)
7313                 lpfc_fof_queue_create(phba);
7314         return 0;
7315
7316 out_error:
7317         lpfc_sli4_queue_destroy(phba);
7318         return -ENOMEM;
7319 }
7320
7321 /**
7322  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7323  * @phba: pointer to lpfc hba data structure.
7324  *
7325  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7326  * operation.
7327  *
7328  * Return codes
7329  *      0 - successful
7330  *      -ENOMEM - No available memory
7331  *      -EIO - The mailbox failed to complete successfully.
7332  **/
7333 void
7334 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7335 {
7336         int idx;
7337
7338         if (phba->cfg_fof)
7339                 lpfc_fof_queue_destroy(phba);
7340
7341         if (phba->sli4_hba.hba_eq != NULL) {
7342                 /* Release HBA event queue */
7343                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7344                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7345                                 lpfc_sli4_queue_free(
7346                                         phba->sli4_hba.hba_eq[idx]);
7347                                 phba->sli4_hba.hba_eq[idx] = NULL;
7348                         }
7349                 }
7350                 kfree(phba->sli4_hba.hba_eq);
7351                 phba->sli4_hba.hba_eq = NULL;
7352         }
7353
7354         if (phba->sli4_hba.fcp_cq != NULL) {
7355                 /* Release FCP completion queue */
7356                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7357                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7358                                 lpfc_sli4_queue_free(
7359                                         phba->sli4_hba.fcp_cq[idx]);
7360                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7361                         }
7362                 }
7363                 kfree(phba->sli4_hba.fcp_cq);
7364                 phba->sli4_hba.fcp_cq = NULL;
7365         }
7366
7367         if (phba->sli4_hba.fcp_wq != NULL) {
7368                 /* Release FCP work queue */
7369                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7370                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7371                                 lpfc_sli4_queue_free(
7372                                         phba->sli4_hba.fcp_wq[idx]);
7373                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7374                         }
7375                 }
7376                 kfree(phba->sli4_hba.fcp_wq);
7377                 phba->sli4_hba.fcp_wq = NULL;
7378         }
7379
7380         /* Release FCP CQ mapping array */
7381         if (phba->sli4_hba.fcp_cq_map != NULL) {
7382                 kfree(phba->sli4_hba.fcp_cq_map);
7383                 phba->sli4_hba.fcp_cq_map = NULL;
7384         }
7385
7386         /* Release mailbox command work queue */
7387         if (phba->sli4_hba.mbx_wq != NULL) {
7388                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7389                 phba->sli4_hba.mbx_wq = NULL;
7390         }
7391
7392         /* Release ELS work queue */
7393         if (phba->sli4_hba.els_wq != NULL) {
7394                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7395                 phba->sli4_hba.els_wq = NULL;
7396         }
7397
7398         /* Release unsolicited receive queue */
7399         if (phba->sli4_hba.hdr_rq != NULL) {
7400                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7401                 phba->sli4_hba.hdr_rq = NULL;
7402         }
7403         if (phba->sli4_hba.dat_rq != NULL) {
7404                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7405                 phba->sli4_hba.dat_rq = NULL;
7406         }
7407
7408         /* Release ELS complete queue */
7409         if (phba->sli4_hba.els_cq != NULL) {
7410                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7411                 phba->sli4_hba.els_cq = NULL;
7412         }
7413
7414         /* Release mailbox command complete queue */
7415         if (phba->sli4_hba.mbx_cq != NULL) {
7416                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7417                 phba->sli4_hba.mbx_cq = NULL;
7418         }
7419
7420         return;
7421 }
7422
7423 /**
7424  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7425  * @phba: pointer to lpfc hba data structure.
7426  *
7427  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7428  * operation.
7429  *
7430  * Return codes
7431  *      0 - successful
7432  *      -ENOMEM - No available memory
7433  *      -EIO - The mailbox failed to complete successfully.
7434  **/
7435 int
7436 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7437 {
7438         struct lpfc_sli *psli = &phba->sli;
7439         struct lpfc_sli_ring *pring;
7440         int rc = -ENOMEM;
7441         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7442         int fcp_cq_index = 0;
7443         uint32_t shdr_status, shdr_add_status;
7444         union lpfc_sli4_cfg_shdr *shdr;
7445         LPFC_MBOXQ_t *mboxq;
7446         uint32_t length;
7447
7448         /* Check for dual-ULP support */
7449         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7450         if (!mboxq) {
7451                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7452                                 "3249 Unable to allocate memory for "
7453                                 "QUERY_FW_CFG mailbox command\n");
7454                 return -ENOMEM;
7455         }
7456         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7457                   sizeof(struct lpfc_sli4_cfg_mhdr));
7458         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7459                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7460                          length, LPFC_SLI4_MBX_EMBED);
7461
7462         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7463
7464         shdr = (union lpfc_sli4_cfg_shdr *)
7465                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7466         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7467         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7468         if (shdr_status || shdr_add_status || rc) {
7469                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7470                                 "3250 QUERY_FW_CFG mailbox failed with status "
7471                                 "x%x add_status x%x, mbx status x%x\n",
7472                                 shdr_status, shdr_add_status, rc);
7473                 if (rc != MBX_TIMEOUT)
7474                         mempool_free(mboxq, phba->mbox_mem_pool);
7475                 rc = -ENXIO;
7476                 goto out_error;
7477         }
7478
7479         phba->sli4_hba.fw_func_mode =
7480                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7481         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7482         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7483         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7484                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7485                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7486                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7487
7488         if (rc != MBX_TIMEOUT)
7489                 mempool_free(mboxq, phba->mbox_mem_pool);
7490
7491         /*
7492          * Set up HBA Event Queues (EQs)
7493          */
7494
7495         /* Set up HBA event queue */
7496         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7498                                 "3147 Fast-path EQs not allocated\n");
7499                 rc = -ENOMEM;
7500                 goto out_error;
7501         }
7502         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7503                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7504                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7505                                         "0522 Fast-path EQ (%d) not "
7506                                         "allocated\n", fcp_eqidx);
7507                         rc = -ENOMEM;
7508                         goto out_destroy_hba_eq;
7509                 }
7510                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7511                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7512                 if (rc) {
7513                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7514                                         "0523 Failed setup of fast-path EQ "
7515                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7516                                         (uint32_t)rc);
7517                         goto out_destroy_hba_eq;
7518                 }
7519                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7520                                 "2584 HBA EQ setup: "
7521                                 "queue[%d]-id=%d\n", fcp_eqidx,
7522                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7523         }
7524
7525         /* Set up fast-path FCP Response Complete Queue */
7526         if (!phba->sli4_hba.fcp_cq) {
7527                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7528                                 "3148 Fast-path FCP CQ array not "
7529                                 "allocated\n");
7530                 rc = -ENOMEM;
7531                 goto out_destroy_hba_eq;
7532         }
7533
7534         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7535                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7536                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7537                                         "0526 Fast-path FCP CQ (%d) not "
7538                                         "allocated\n", fcp_cqidx);
7539                         rc = -ENOMEM;
7540                         goto out_destroy_fcp_cq;
7541                 }
7542                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7543                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7544                 if (rc) {
7545                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7546                                         "0527 Failed setup of fast-path FCP "
7547                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7548                                         (uint32_t)rc);
7549                         goto out_destroy_fcp_cq;
7550                 }
7551
7552                 /* Setup fcp_cq_map for fast lookup */
7553                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7554                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7555
7556                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7557                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7558                                 "parent seq[%d]-id=%d\n",
7559                                 fcp_cqidx,
7560                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7561                                 fcp_cqidx,
7562                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7563         }
7564
7565         /* Set up fast-path FCP Work Queue */
7566         if (!phba->sli4_hba.fcp_wq) {
7567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7568                                 "3149 Fast-path FCP WQ array not "
7569                                 "allocated\n");
7570                 rc = -ENOMEM;
7571                 goto out_destroy_fcp_cq;
7572         }
7573
7574         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7575                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7576                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7577                                         "0534 Fast-path FCP WQ (%d) not "
7578                                         "allocated\n", fcp_wqidx);
7579                         rc = -ENOMEM;
7580                         goto out_destroy_fcp_wq;
7581                 }
7582                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7583                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7584                                     LPFC_FCP);
7585                 if (rc) {
7586                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7587                                         "0535 Failed setup of fast-path FCP "
7588                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7589                                         (uint32_t)rc);
7590                         goto out_destroy_fcp_wq;
7591                 }
7592
7593                 /* Bind this WQ to the next FCP ring */
7594                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7595                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7596                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7597
7598                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7599                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7600                                 "parent cq[%d]-id=%d\n",
7601                                 fcp_wqidx,
7602                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7603                                 fcp_cq_index,
7604                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7605         }
7606         /*
7607          * Set up Complete Queues (CQs)
7608          */
7609
7610         /* Set up slow-path MBOX Complete Queue as the first CQ */
7611         if (!phba->sli4_hba.mbx_cq) {
7612                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7613                                 "0528 Mailbox CQ not allocated\n");
7614                 rc = -ENOMEM;
7615                 goto out_destroy_fcp_wq;
7616         }
7617         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7618                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7619         if (rc) {
7620                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7621                                 "0529 Failed setup of slow-path mailbox CQ: "
7622                                 "rc = 0x%x\n", (uint32_t)rc);
7623                 goto out_destroy_fcp_wq;
7624         }
7625         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7626                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7627                         phba->sli4_hba.mbx_cq->queue_id,
7628                         phba->sli4_hba.hba_eq[0]->queue_id);
7629
7630         /* Set up slow-path ELS Complete Queue */
7631         if (!phba->sli4_hba.els_cq) {
7632                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7633                                 "0530 ELS CQ not allocated\n");
7634                 rc = -ENOMEM;
7635                 goto out_destroy_mbx_cq;
7636         }
7637         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7638                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7639         if (rc) {
7640                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7641                                 "0531 Failed setup of slow-path ELS CQ: "
7642                                 "rc = 0x%x\n", (uint32_t)rc);
7643                 goto out_destroy_mbx_cq;
7644         }
7645         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7646                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7647                         phba->sli4_hba.els_cq->queue_id,
7648                         phba->sli4_hba.hba_eq[0]->queue_id);
7649
7650         /*
7651          * Set up all the Work Queues (WQs)
7652          */
7653
7654         /* Set up Mailbox Command Queue */
7655         if (!phba->sli4_hba.mbx_wq) {
7656                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7657                                 "0538 Slow-path MQ not allocated\n");
7658                 rc = -ENOMEM;
7659                 goto out_destroy_els_cq;
7660         }
7661         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7662                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7663         if (rc) {
7664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7665                                 "0539 Failed setup of slow-path MQ: "
7666                                 "rc = 0x%x\n", rc);
7667                 goto out_destroy_els_cq;
7668         }
7669         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7670                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7671                         phba->sli4_hba.mbx_wq->queue_id,
7672                         phba->sli4_hba.mbx_cq->queue_id);
7673
7674         /* Set up slow-path ELS Work Queue */
7675         if (!phba->sli4_hba.els_wq) {
7676                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7677                                 "0536 Slow-path ELS WQ not allocated\n");
7678                 rc = -ENOMEM;
7679                 goto out_destroy_mbx_wq;
7680         }
7681         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7682                             phba->sli4_hba.els_cq, LPFC_ELS);
7683         if (rc) {
7684                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7685                                 "0537 Failed setup of slow-path ELS WQ: "
7686                                 "rc = 0x%x\n", (uint32_t)rc);
7687                 goto out_destroy_mbx_wq;
7688         }
7689
7690         /* Bind this WQ to the ELS ring */
7691         pring = &psli->ring[LPFC_ELS_RING];
7692         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7693         phba->sli4_hba.els_cq->pring = pring;
7694
7695         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7696                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7697                         phba->sli4_hba.els_wq->queue_id,
7698                         phba->sli4_hba.els_cq->queue_id);
7699
7700         /*
7701          * Create Receive Queue (RQ)
7702          */
7703         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7705                                 "0540 Receive Queue not allocated\n");
7706                 rc = -ENOMEM;
7707                 goto out_destroy_els_wq;
7708         }
7709
7710         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7711         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7712
7713         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7714                             phba->sli4_hba.els_cq, LPFC_USOL);
7715         if (rc) {
7716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7717                                 "0541 Failed setup of Receive Queue: "
7718                                 "rc = 0x%x\n", (uint32_t)rc);
7719                 goto out_destroy_fcp_wq;
7720         }
7721
7722         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7723                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7724                         "parent cq-id=%d\n",
7725                         phba->sli4_hba.hdr_rq->queue_id,
7726                         phba->sli4_hba.dat_rq->queue_id,
7727                         phba->sli4_hba.els_cq->queue_id);
7728
7729         if (phba->cfg_fof) {
7730                 rc = lpfc_fof_queue_setup(phba);
7731                 if (rc) {
7732                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7733                                         "0549 Failed setup of FOF Queues: "
7734                                         "rc = 0x%x\n", rc);
7735                         goto out_destroy_els_rq;
7736                 }
7737         }
7738
7739         /*
7740          * Configure EQ delay multipier for interrupt coalescing using
7741          * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7742          */
7743         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7744                         fcp_eqidx += LPFC_MAX_EQ_DELAY)
7745                 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7746         return 0;
7747
7748 out_destroy_els_rq:
7749         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7750 out_destroy_els_wq:
7751         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7752 out_destroy_mbx_wq:
7753         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7754 out_destroy_els_cq:
7755         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7756 out_destroy_mbx_cq:
7757         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7758 out_destroy_fcp_wq:
7759         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7760                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7761 out_destroy_fcp_cq:
7762         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7763                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7764 out_destroy_hba_eq:
7765         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7766                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7767 out_error:
7768         return rc;
7769 }
7770
7771 /**
7772  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7773  * @phba: pointer to lpfc hba data structure.
7774  *
7775  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7776  * operation.
7777  *
7778  * Return codes
7779  *      0 - successful
7780  *      -ENOMEM - No available memory
7781  *      -EIO - The mailbox failed to complete successfully.
7782  **/
7783 void
7784 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7785 {
7786         int fcp_qidx;
7787
7788         /* Unset the queues created for Flash Optimized Fabric operations */
7789         if (phba->cfg_fof)
7790                 lpfc_fof_queue_destroy(phba);
7791         /* Unset mailbox command work queue */
7792         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7793         /* Unset ELS work queue */
7794         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7795         /* Unset unsolicited receive queue */
7796         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7797         /* Unset FCP work queue */
7798         if (phba->sli4_hba.fcp_wq) {
7799                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7800                      fcp_qidx++)
7801                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7802         }
7803         /* Unset mailbox command complete queue */
7804         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7805         /* Unset ELS complete queue */
7806         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7807         /* Unset FCP response complete queue */
7808         if (phba->sli4_hba.fcp_cq) {
7809                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7810                      fcp_qidx++)
7811                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7812         }
7813         /* Unset fast-path event queue */
7814         if (phba->sli4_hba.hba_eq) {
7815                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7816                      fcp_qidx++)
7817                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7818         }
7819 }
7820
7821 /**
7822  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7823  * @phba: pointer to lpfc hba data structure.
7824  *
7825  * This routine is invoked to allocate and set up a pool of completion queue
7826  * events. The body of the completion queue event is a completion queue entry
7827  * CQE. For now, this pool is used for the interrupt service routine to queue
7828  * the following HBA completion queue events for the worker thread to process:
7829  *   - Mailbox asynchronous events
7830  *   - Receive queue completion unsolicited events
7831  * Later, this can be used for all the slow-path events.
7832  *
7833  * Return codes
7834  *      0 - successful
7835  *      -ENOMEM - No available memory
7836  **/
7837 static int
7838 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7839 {
7840         struct lpfc_cq_event *cq_event;
7841         int i;
7842
7843         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7844                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7845                 if (!cq_event)
7846                         goto out_pool_create_fail;
7847                 list_add_tail(&cq_event->list,
7848                               &phba->sli4_hba.sp_cqe_event_pool);
7849         }
7850         return 0;
7851
7852 out_pool_create_fail:
7853         lpfc_sli4_cq_event_pool_destroy(phba);
7854         return -ENOMEM;
7855 }
7856
7857 /**
7858  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7859  * @phba: pointer to lpfc hba data structure.
7860  *
7861  * This routine is invoked to free the pool of completion queue events at
7862  * driver unload time. Note that, it is the responsibility of the driver
7863  * cleanup routine to free all the outstanding completion-queue events
7864  * allocated from this pool back into the pool before invoking this routine
7865  * to destroy the pool.
7866  **/
7867 static void
7868 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7869 {
7870         struct lpfc_cq_event *cq_event, *next_cq_event;
7871
7872         list_for_each_entry_safe(cq_event, next_cq_event,
7873                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7874                 list_del(&cq_event->list);
7875                 kfree(cq_event);
7876         }
7877 }
7878
7879 /**
7880  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7881  * @phba: pointer to lpfc hba data structure.
7882  *
7883  * This routine is the lock free version of the API invoked to allocate a
7884  * completion-queue event from the free pool.
7885  *
7886  * Return: Pointer to the newly allocated completion-queue event if successful
7887  *         NULL otherwise.
7888  **/
7889 struct lpfc_cq_event *
7890 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7891 {
7892         struct lpfc_cq_event *cq_event = NULL;
7893
7894         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7895                          struct lpfc_cq_event, list);
7896         return cq_event;
7897 }
7898
7899 /**
7900  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7901  * @phba: pointer to lpfc hba data structure.
7902  *
7903  * This routine is the lock version of the API invoked to allocate a
7904  * completion-queue event from the free pool.
7905  *
7906  * Return: Pointer to the newly allocated completion-queue event if successful
7907  *         NULL otherwise.
7908  **/
7909 struct lpfc_cq_event *
7910 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7911 {
7912         struct lpfc_cq_event *cq_event;
7913         unsigned long iflags;
7914
7915         spin_lock_irqsave(&phba->hbalock, iflags);
7916         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7917         spin_unlock_irqrestore(&phba->hbalock, iflags);
7918         return cq_event;
7919 }
7920
7921 /**
7922  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7923  * @phba: pointer to lpfc hba data structure.
7924  * @cq_event: pointer to the completion queue event to be freed.
7925  *
7926  * This routine is the lock free version of the API invoked to release a
7927  * completion-queue event back into the free pool.
7928  **/
7929 void
7930 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7931                              struct lpfc_cq_event *cq_event)
7932 {
7933         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7934 }
7935
7936 /**
7937  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7938  * @phba: pointer to lpfc hba data structure.
7939  * @cq_event: pointer to the completion queue event to be freed.
7940  *
7941  * This routine is the lock version of the API invoked to release a
7942  * completion-queue event back into the free pool.
7943  **/
7944 void
7945 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7946                            struct lpfc_cq_event *cq_event)
7947 {
7948         unsigned long iflags;
7949         spin_lock_irqsave(&phba->hbalock, iflags);
7950         __lpfc_sli4_cq_event_release(phba, cq_event);
7951         spin_unlock_irqrestore(&phba->hbalock, iflags);
7952 }
7953
7954 /**
7955  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7956  * @phba: pointer to lpfc hba data structure.
7957  *
7958  * This routine is to free all the pending completion-queue events to the
7959  * back into the free pool for device reset.
7960  **/
7961 static void
7962 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7963 {
7964         LIST_HEAD(cqelist);
7965         struct lpfc_cq_event *cqe;
7966         unsigned long iflags;
7967
7968         /* Retrieve all the pending WCQEs from pending WCQE lists */
7969         spin_lock_irqsave(&phba->hbalock, iflags);
7970         /* Pending FCP XRI abort events */
7971         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7972                          &cqelist);
7973         /* Pending ELS XRI abort events */
7974         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7975                          &cqelist);
7976         /* Pending asynnc events */
7977         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7978                          &cqelist);
7979         spin_unlock_irqrestore(&phba->hbalock, iflags);
7980
7981         while (!list_empty(&cqelist)) {
7982                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7983                 lpfc_sli4_cq_event_release(phba, cqe);
7984         }
7985 }
7986
7987 /**
7988  * lpfc_pci_function_reset - Reset pci function.
7989  * @phba: pointer to lpfc hba data structure.
7990  *
7991  * This routine is invoked to request a PCI function reset. It will destroys
7992  * all resources assigned to the PCI function which originates this request.
7993  *
7994  * Return codes
7995  *      0 - successful
7996  *      -ENOMEM - No available memory
7997  *      -EIO - The mailbox failed to complete successfully.
7998  **/
7999 int
8000 lpfc_pci_function_reset(struct lpfc_hba *phba)
8001 {
8002         LPFC_MBOXQ_t *mboxq;
8003         uint32_t rc = 0, if_type;
8004         uint32_t shdr_status, shdr_add_status;
8005         uint32_t rdy_chk;
8006         uint32_t port_reset = 0;
8007         union lpfc_sli4_cfg_shdr *shdr;
8008         struct lpfc_register reg_data;
8009         uint16_t devid;
8010
8011         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8012         switch (if_type) {
8013         case LPFC_SLI_INTF_IF_TYPE_0:
8014                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8015                                                        GFP_KERNEL);
8016                 if (!mboxq) {
8017                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8018                                         "0494 Unable to allocate memory for "
8019                                         "issuing SLI_FUNCTION_RESET mailbox "
8020                                         "command\n");
8021                         return -ENOMEM;
8022                 }
8023
8024                 /* Setup PCI function reset mailbox-ioctl command */
8025                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8026                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8027                                  LPFC_SLI4_MBX_EMBED);
8028                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8029                 shdr = (union lpfc_sli4_cfg_shdr *)
8030                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8031                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8032                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8033                                          &shdr->response);
8034                 if (rc != MBX_TIMEOUT)
8035                         mempool_free(mboxq, phba->mbox_mem_pool);
8036                 if (shdr_status || shdr_add_status || rc) {
8037                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8038                                         "0495 SLI_FUNCTION_RESET mailbox "
8039                                         "failed with status x%x add_status x%x,"
8040                                         " mbx status x%x\n",
8041                                         shdr_status, shdr_add_status, rc);
8042                         rc = -ENXIO;
8043                 }
8044                 break;
8045         case LPFC_SLI_INTF_IF_TYPE_2:
8046 wait:
8047                 /*
8048                  * Poll the Port Status Register and wait for RDY for
8049                  * up to 30 seconds. If the port doesn't respond, treat
8050                  * it as an error.
8051                  */
8052                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8053                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8054                                 STATUSregaddr, &reg_data.word0)) {
8055                                 rc = -ENODEV;
8056                                 goto out;
8057                         }
8058                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8059                                 break;
8060                         msleep(20);
8061                 }
8062
8063                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8064                         phba->work_status[0] = readl(
8065                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8066                         phba->work_status[1] = readl(
8067                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8068                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8069                                         "2890 Port not ready, port status reg "
8070                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8071                                         reg_data.word0,
8072                                         phba->work_status[0],
8073                                         phba->work_status[1]);
8074                         rc = -ENODEV;
8075                         goto out;
8076                 }
8077
8078                 if (!port_reset) {
8079                         /*
8080                          * Reset the port now
8081                          */
8082                         reg_data.word0 = 0;
8083                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8084                                LPFC_SLIPORT_LITTLE_ENDIAN);
8085                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8086                                LPFC_SLIPORT_INIT_PORT);
8087                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8088                                CTRLregaddr);
8089                         /* flush */
8090                         pci_read_config_word(phba->pcidev,
8091                                              PCI_DEVICE_ID, &devid);
8092
8093                         port_reset = 1;
8094                         msleep(20);
8095                         goto wait;
8096                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8097                         rc = -ENODEV;
8098                         goto out;
8099                 }
8100                 break;
8101
8102         case LPFC_SLI_INTF_IF_TYPE_1:
8103         default:
8104                 break;
8105         }
8106
8107 out:
8108         /* Catch the not-ready port failure after a port reset. */
8109         if (rc) {
8110                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8111                                 "3317 HBA not functional: IP Reset Failed "
8112                                 "try: echo fw_reset > board_mode\n");
8113                 rc = -ENODEV;
8114         }
8115
8116         return rc;
8117 }
8118
8119 /**
8120  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8121  * @phba: pointer to lpfc hba data structure.
8122  *
8123  * This routine is invoked to set up the PCI device memory space for device
8124  * with SLI-4 interface spec.
8125  *
8126  * Return codes
8127  *      0 - successful
8128  *      other values - error
8129  **/
8130 static int
8131 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8132 {
8133         struct pci_dev *pdev;
8134         unsigned long bar0map_len, bar1map_len, bar2map_len;
8135         int error = -ENODEV;
8136         uint32_t if_type;
8137
8138         /* Obtain PCI device reference */
8139         if (!phba->pcidev)
8140                 return error;
8141         else
8142                 pdev = phba->pcidev;
8143
8144         /* Set the device DMA mask size */
8145         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8146          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8147                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8148                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8149                         return error;
8150                 }
8151         }
8152
8153         /*
8154          * The BARs and register set definitions and offset locations are
8155          * dependent on the if_type.
8156          */
8157         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8158                                   &phba->sli4_hba.sli_intf.word0)) {
8159                 return error;
8160         }
8161
8162         /* There is no SLI3 failback for SLI4 devices. */
8163         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8164             LPFC_SLI_INTF_VALID) {
8165                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8166                                 "2894 SLI_INTF reg contents invalid "
8167                                 "sli_intf reg 0x%x\n",
8168                                 phba->sli4_hba.sli_intf.word0);
8169                 return error;
8170         }
8171
8172         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8173         /*
8174          * Get the bus address of SLI4 device Bar regions and the
8175          * number of bytes required by each mapping. The mapping of the
8176          * particular PCI BARs regions is dependent on the type of
8177          * SLI4 device.
8178          */
8179         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8180                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8181                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8182
8183                 /*
8184                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8185                  * addr
8186                  */
8187                 phba->sli4_hba.conf_regs_memmap_p =
8188                         ioremap(phba->pci_bar0_map, bar0map_len);
8189                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8190                         dev_printk(KERN_ERR, &pdev->dev,
8191                                    "ioremap failed for SLI4 PCI config "
8192                                    "registers.\n");
8193                         goto out;
8194                 }
8195                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8196                 /* Set up BAR0 PCI config space register memory map */
8197                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8198         } else {
8199                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8200                 bar0map_len = pci_resource_len(pdev, 1);
8201                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8202                         dev_printk(KERN_ERR, &pdev->dev,
8203                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8204                         goto out;
8205                 }
8206                 phba->sli4_hba.conf_regs_memmap_p =
8207                                 ioremap(phba->pci_bar0_map, bar0map_len);
8208                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8209                         dev_printk(KERN_ERR, &pdev->dev,
8210                                 "ioremap failed for SLI4 PCI config "
8211                                 "registers.\n");
8212                                 goto out;
8213                 }
8214                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8215         }
8216
8217         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8218             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8219                 /*
8220                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8221                  * virtual address and setup the registers.
8222                  */
8223                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8224                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8225                 phba->sli4_hba.ctrl_regs_memmap_p =
8226                                 ioremap(phba->pci_bar1_map, bar1map_len);
8227                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8228                         dev_printk(KERN_ERR, &pdev->dev,
8229                            "ioremap failed for SLI4 HBA control registers.\n");
8230                         goto out_iounmap_conf;
8231                 }
8232                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8233                 lpfc_sli4_bar1_register_memmap(phba);
8234         }
8235
8236         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8237             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8238                 /*
8239                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8240                  * virtual address and setup the registers.
8241                  */
8242                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8243                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8244                 phba->sli4_hba.drbl_regs_memmap_p =
8245                                 ioremap(phba->pci_bar2_map, bar2map_len);
8246                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8247                         dev_printk(KERN_ERR, &pdev->dev,
8248                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8249                         goto out_iounmap_ctrl;
8250                 }
8251                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8252                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8253                 if (error)
8254                         goto out_iounmap_all;
8255         }
8256
8257         return 0;
8258
8259 out_iounmap_all:
8260         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8261 out_iounmap_ctrl:
8262         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8263 out_iounmap_conf:
8264         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8265 out:
8266         return error;
8267 }
8268
8269 /**
8270  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8271  * @phba: pointer to lpfc hba data structure.
8272  *
8273  * This routine is invoked to unset the PCI device memory space for device
8274  * with SLI-4 interface spec.
8275  **/
8276 static void
8277 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8278 {
8279         uint32_t if_type;
8280         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8281
8282         switch (if_type) {
8283         case LPFC_SLI_INTF_IF_TYPE_0:
8284                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8285                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8286                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8287                 break;
8288         case LPFC_SLI_INTF_IF_TYPE_2:
8289                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8290                 break;
8291         case LPFC_SLI_INTF_IF_TYPE_1:
8292         default:
8293                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8294                            "FATAL - unsupported SLI4 interface type - %d\n",
8295                            if_type);
8296                 break;
8297         }
8298 }
8299
8300 /**
8301  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8302  * @phba: pointer to lpfc hba data structure.
8303  *
8304  * This routine is invoked to enable the MSI-X interrupt vectors to device
8305  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8306  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8307  * once invoked, enables either all or nothing, depending on the current
8308  * availability of PCI vector resources. The device driver is responsible
8309  * for calling the individual request_irq() to register each MSI-X vector
8310  * with a interrupt handler, which is done in this function. Note that
8311  * later when device is unloading, the driver should always call free_irq()
8312  * on all MSI-X vectors it has done request_irq() on before calling
8313  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8314  * will be left with MSI-X enabled and leaks its vectors.
8315  *
8316  * Return codes
8317  *   0 - successful
8318  *   other values - error
8319  **/
8320 static int
8321 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8322 {
8323         int rc, i;
8324         LPFC_MBOXQ_t *pmb;
8325
8326         /* Set up MSI-X multi-message vectors */
8327         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8328                 phba->msix_entries[i].entry = i;
8329
8330         /* Configure MSI-X capability structure */
8331         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8332                                    LPFC_MSIX_VECTORS);
8333         if (rc) {
8334                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8335                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8336                 goto vec_fail_out;
8337         }
8338         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8339                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8340                                 "0477 MSI-X entry[%d]: vector=x%x "
8341                                 "message=%d\n", i,
8342                                 phba->msix_entries[i].vector,
8343                                 phba->msix_entries[i].entry);
8344         /*
8345          * Assign MSI-X vectors to interrupt handlers
8346          */
8347
8348         /* vector-0 is associated to slow-path handler */
8349         rc = request_irq(phba->msix_entries[0].vector,
8350                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8351                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8352         if (rc) {
8353                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8354                                 "0421 MSI-X slow-path request_irq failed "
8355                                 "(%d)\n", rc);
8356                 goto msi_fail_out;
8357         }
8358
8359         /* vector-1 is associated to fast-path handler */
8360         rc = request_irq(phba->msix_entries[1].vector,
8361                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8362                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8363
8364         if (rc) {
8365                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8366                                 "0429 MSI-X fast-path request_irq failed "
8367                                 "(%d)\n", rc);
8368                 goto irq_fail_out;
8369         }
8370
8371         /*
8372          * Configure HBA MSI-X attention conditions to messages
8373          */
8374         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8375
8376         if (!pmb) {
8377                 rc = -ENOMEM;
8378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8379                                 "0474 Unable to allocate memory for issuing "
8380                                 "MBOX_CONFIG_MSI command\n");
8381                 goto mem_fail_out;
8382         }
8383         rc = lpfc_config_msi(phba, pmb);
8384         if (rc)
8385                 goto mbx_fail_out;
8386         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8387         if (rc != MBX_SUCCESS) {
8388                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8389                                 "0351 Config MSI mailbox command failed, "
8390                                 "mbxCmd x%x, mbxStatus x%x\n",
8391                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8392                 goto mbx_fail_out;
8393         }
8394
8395         /* Free memory allocated for mailbox command */
8396         mempool_free(pmb, phba->mbox_mem_pool);
8397         return rc;
8398
8399 mbx_fail_out:
8400         /* Free memory allocated for mailbox command */
8401         mempool_free(pmb, phba->mbox_mem_pool);
8402
8403 mem_fail_out:
8404         /* free the irq already requested */
8405         free_irq(phba->msix_entries[1].vector, phba);
8406
8407 irq_fail_out:
8408         /* free the irq already requested */
8409         free_irq(phba->msix_entries[0].vector, phba);
8410
8411 msi_fail_out:
8412         /* Unconfigure MSI-X capability structure */
8413         pci_disable_msix(phba->pcidev);
8414
8415 vec_fail_out:
8416         return rc;
8417 }
8418
8419 /**
8420  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8421  * @phba: pointer to lpfc hba data structure.
8422  *
8423  * This routine is invoked to release the MSI-X vectors and then disable the
8424  * MSI-X interrupt mode to device with SLI-3 interface spec.
8425  **/
8426 static void
8427 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8428 {
8429         int i;
8430
8431         /* Free up MSI-X multi-message vectors */
8432         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8433                 free_irq(phba->msix_entries[i].vector, phba);
8434         /* Disable MSI-X */
8435         pci_disable_msix(phba->pcidev);
8436
8437         return;
8438 }
8439
8440 /**
8441  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8442  * @phba: pointer to lpfc hba data structure.
8443  *
8444  * This routine is invoked to enable the MSI interrupt mode to device with
8445  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8446  * enable the MSI vector. The device driver is responsible for calling the
8447  * request_irq() to register MSI vector with a interrupt the handler, which
8448  * is done in this function.
8449  *
8450  * Return codes
8451  *      0 - successful
8452  *      other values - error
8453  */
8454 static int
8455 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8456 {
8457         int rc;
8458
8459         rc = pci_enable_msi(phba->pcidev);
8460         if (!rc)
8461                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8462                                 "0462 PCI enable MSI mode success.\n");
8463         else {
8464                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8465                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8466                 return rc;
8467         }
8468
8469         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8470                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8471         if (rc) {
8472                 pci_disable_msi(phba->pcidev);
8473                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8474                                 "0478 MSI request_irq failed (%d)\n", rc);
8475         }
8476         return rc;
8477 }
8478
8479 /**
8480  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8481  * @phba: pointer to lpfc hba data structure.
8482  *
8483  * This routine is invoked to disable the MSI interrupt mode to device with
8484  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8485  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8486  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8487  * its vector.
8488  */
8489 static void
8490 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8491 {
8492         free_irq(phba->pcidev->irq, phba);
8493         pci_disable_msi(phba->pcidev);
8494         return;
8495 }
8496
8497 /**
8498  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8499  * @phba: pointer to lpfc hba data structure.
8500  *
8501  * This routine is invoked to enable device interrupt and associate driver's
8502  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8503  * spec. Depends on the interrupt mode configured to the driver, the driver
8504  * will try to fallback from the configured interrupt mode to an interrupt
8505  * mode which is supported by the platform, kernel, and device in the order
8506  * of:
8507  * MSI-X -> MSI -> IRQ.
8508  *
8509  * Return codes
8510  *   0 - successful
8511  *   other values - error
8512  **/
8513 static uint32_t
8514 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8515 {
8516         uint32_t intr_mode = LPFC_INTR_ERROR;
8517         int retval;
8518
8519         if (cfg_mode == 2) {
8520                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8521                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8522                 if (!retval) {
8523                         /* Now, try to enable MSI-X interrupt mode */
8524                         retval = lpfc_sli_enable_msix(phba);
8525                         if (!retval) {
8526                                 /* Indicate initialization to MSI-X mode */
8527                                 phba->intr_type = MSIX;
8528                                 intr_mode = 2;
8529                         }
8530                 }
8531         }
8532
8533         /* Fallback to MSI if MSI-X initialization failed */
8534         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8535                 retval = lpfc_sli_enable_msi(phba);
8536                 if (!retval) {
8537                         /* Indicate initialization to MSI mode */
8538                         phba->intr_type = MSI;
8539                         intr_mode = 1;
8540                 }
8541         }
8542
8543         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8544         if (phba->intr_type == NONE) {
8545                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8546                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8547                 if (!retval) {
8548                         /* Indicate initialization to INTx mode */
8549                         phba->intr_type = INTx;
8550                         intr_mode = 0;
8551                 }
8552         }
8553         return intr_mode;
8554 }
8555
8556 /**
8557  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8558  * @phba: pointer to lpfc hba data structure.
8559  *
8560  * This routine is invoked to disable device interrupt and disassociate the
8561  * driver's interrupt handler(s) from interrupt vector(s) to device with
8562  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8563  * release the interrupt vector(s) for the message signaled interrupt.
8564  **/
8565 static void
8566 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8567 {
8568         /* Disable the currently initialized interrupt mode */
8569         if (phba->intr_type == MSIX)
8570                 lpfc_sli_disable_msix(phba);
8571         else if (phba->intr_type == MSI)
8572                 lpfc_sli_disable_msi(phba);
8573         else if (phba->intr_type == INTx)
8574                 free_irq(phba->pcidev->irq, phba);
8575
8576         /* Reset interrupt management states */
8577         phba->intr_type = NONE;
8578         phba->sli.slistat.sli_intr = 0;
8579
8580         return;
8581 }
8582
8583 /**
8584  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8585  * @phba: pointer to lpfc hba data structure.
8586  *
8587  * Find next available CPU to use for IRQ to CPU affinity.
8588  */
8589 static int
8590 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8591 {
8592         struct lpfc_vector_map_info *cpup;
8593         int cpu;
8594
8595         cpup = phba->sli4_hba.cpu_map;
8596         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8597                 /* CPU must be online */
8598                 if (cpu_online(cpu)) {
8599                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8600                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8601                             (cpup->phys_id == phys_id)) {
8602                                 return cpu;
8603                         }
8604                 }
8605                 cpup++;
8606         }
8607
8608         /*
8609          * If we get here, we have used ALL CPUs for the specific
8610          * phys_id. Now we need to clear out lpfc_used_cpu and start
8611          * reusing CPUs.
8612          */
8613
8614         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8615                 if (lpfc_used_cpu[cpu] == phys_id)
8616                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8617         }
8618
8619         cpup = phba->sli4_hba.cpu_map;
8620         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8621                 /* CPU must be online */
8622                 if (cpu_online(cpu)) {
8623                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8624                             (cpup->phys_id == phys_id)) {
8625                                 return cpu;
8626                         }
8627                 }
8628                 cpup++;
8629         }
8630         return LPFC_VECTOR_MAP_EMPTY;
8631 }
8632
8633 /**
8634  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8635  * @phba:       pointer to lpfc hba data structure.
8636  * @vectors:    number of HBA vectors
8637  *
8638  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8639  * affinization across multple physical CPUs (numa nodes).
8640  * In addition, this routine will assign an IO channel for each CPU
8641  * to use when issuing I/Os.
8642  */
8643 static int
8644 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8645 {
8646         int i, idx, saved_chann, used_chann, cpu, phys_id;
8647         int max_phys_id, min_phys_id;
8648         int num_io_channel, first_cpu, chan;
8649         struct lpfc_vector_map_info *cpup;
8650 #ifdef CONFIG_X86
8651         struct cpuinfo_x86 *cpuinfo;
8652 #endif
8653         struct cpumask *mask;
8654         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8655
8656         /* If there is no mapping, just return */
8657         if (!phba->cfg_fcp_cpu_map)
8658                 return 1;
8659
8660         /* Init cpu_map array */
8661         memset(phba->sli4_hba.cpu_map, 0xff,
8662                (sizeof(struct lpfc_vector_map_info) *
8663                 phba->sli4_hba.num_present_cpu));
8664
8665         max_phys_id = 0;
8666         min_phys_id = 0xff;
8667         phys_id = 0;
8668         num_io_channel = 0;
8669         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8670
8671         /* Update CPU map with physical id and core id of each CPU */
8672         cpup = phba->sli4_hba.cpu_map;
8673         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8674 #ifdef CONFIG_X86
8675                 cpuinfo = &cpu_data(cpu);
8676                 cpup->phys_id = cpuinfo->phys_proc_id;
8677                 cpup->core_id = cpuinfo->cpu_core_id;
8678 #else
8679                 /* No distinction between CPUs for other platforms */
8680                 cpup->phys_id = 0;
8681                 cpup->core_id = 0;
8682 #endif
8683
8684                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8685                                 "3328 CPU physid %d coreid %d\n",
8686                                 cpup->phys_id, cpup->core_id);
8687
8688                 if (cpup->phys_id > max_phys_id)
8689                         max_phys_id = cpup->phys_id;
8690                 if (cpup->phys_id < min_phys_id)
8691                         min_phys_id = cpup->phys_id;
8692                 cpup++;
8693         }
8694
8695         phys_id = min_phys_id;
8696         /* Now associate the HBA vectors with specific CPUs */
8697         for (idx = 0; idx < vectors; idx++) {
8698                 cpup = phba->sli4_hba.cpu_map;
8699                 cpu = lpfc_find_next_cpu(phba, phys_id);
8700                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8701
8702                         /* Try for all phys_id's */
8703                         for (i = 1; i < max_phys_id; i++) {
8704                                 phys_id++;
8705                                 if (phys_id > max_phys_id)
8706                                         phys_id = min_phys_id;
8707                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8708                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8709                                         continue;
8710                                 goto found;
8711                         }
8712
8713                         /* Use round robin for scheduling */
8714                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8715                         chan = 0;
8716                         cpup = phba->sli4_hba.cpu_map;
8717                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8718                                 cpup->channel_id = chan;
8719                                 cpup++;
8720                                 chan++;
8721                                 if (chan >= phba->cfg_fcp_io_channel)
8722                                         chan = 0;
8723                         }
8724
8725                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8726                                         "3329 Cannot set affinity:"
8727                                         "Error mapping vector %d (%d)\n",
8728                                         idx, vectors);
8729                         return 0;
8730                 }
8731 found:
8732                 cpup += cpu;
8733                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8734                         lpfc_used_cpu[cpu] = phys_id;
8735
8736                 /* Associate vector with selected CPU */
8737                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8738
8739                 /* Associate IO channel with selected CPU */
8740                 cpup->channel_id = idx;
8741                 num_io_channel++;
8742
8743                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8744                         first_cpu = cpu;
8745
8746                 /* Now affinitize to the selected CPU */
8747                 mask = &cpup->maskbits;
8748                 cpumask_clear(mask);
8749                 cpumask_set_cpu(cpu, mask);
8750                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8751                                           vector, mask);
8752
8753                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8754                                 "3330 Set Affinity: CPU %d channel %d "
8755                                 "irq %d (%x)\n",
8756                                 cpu, cpup->channel_id,
8757                                 phba->sli4_hba.msix_entries[idx].vector, i);
8758
8759                 /* Spread vector mapping across multple physical CPU nodes */
8760                 phys_id++;
8761                 if (phys_id > max_phys_id)
8762                         phys_id = min_phys_id;
8763         }
8764
8765         /*
8766          * Finally fill in the IO channel for any remaining CPUs.
8767          * At this point, all IO channels have been assigned to a specific
8768          * MSIx vector, mapped to a specific CPU.
8769          * Base the remaining IO channel assigned, to IO channels already
8770          * assigned to other CPUs on the same phys_id.
8771          */
8772         for (i = min_phys_id; i <= max_phys_id; i++) {
8773                 /*
8774                  * If there are no io channels already mapped to
8775                  * this phys_id, just round robin thru the io_channels.
8776                  * Setup chann[] for round robin.
8777                  */
8778                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8779                         chann[idx] = idx;
8780
8781                 saved_chann = 0;
8782                 used_chann = 0;
8783
8784                 /*
8785                  * First build a list of IO channels already assigned
8786                  * to this phys_id before reassigning the same IO
8787                  * channels to the remaining CPUs.
8788                  */
8789                 cpup = phba->sli4_hba.cpu_map;
8790                 cpu = first_cpu;
8791                 cpup += cpu;
8792                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8793                      idx++) {
8794                         if (cpup->phys_id == i) {
8795                                 /*
8796                                  * Save any IO channels that are
8797                                  * already mapped to this phys_id.
8798                                  */
8799                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8800                                         chann[saved_chann] =
8801                                                 cpup->channel_id;
8802                                         saved_chann++;
8803                                         goto out;
8804                                 }
8805
8806                                 /* See if we are using round-robin */
8807                                 if (saved_chann == 0)
8808                                         saved_chann =
8809                                                 phba->cfg_fcp_io_channel;
8810
8811                                 /* Associate next IO channel with CPU */
8812                                 cpup->channel_id = chann[used_chann];
8813                                 num_io_channel++;
8814                                 used_chann++;
8815                                 if (used_chann == saved_chann)
8816                                         used_chann = 0;
8817
8818                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8819                                                 "3331 Set IO_CHANN "
8820                                                 "CPU %d channel %d\n",
8821                                                 idx, cpup->channel_id);
8822                         }
8823 out:
8824                         cpu++;
8825                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8826                                 cpup = phba->sli4_hba.cpu_map;
8827                                 cpu = 0;
8828                         } else {
8829                                 cpup++;
8830                         }
8831                 }
8832         }
8833
8834         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8835                 cpup = phba->sli4_hba.cpu_map;
8836                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8837                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8838                                 cpup->channel_id = 0;
8839                                 num_io_channel++;
8840
8841                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8842                                                 "3332 Assign IO_CHANN "
8843                                                 "CPU %d channel %d\n",
8844                                                 idx, cpup->channel_id);
8845                         }
8846                         cpup++;
8847                 }
8848         }
8849
8850         /* Sanity check */
8851         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8852                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8853                                 "3333 Set affinity mismatch:"
8854                                 "%d chann != %d cpus: %d vectors\n",
8855                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8856                                 vectors);
8857
8858         /* Enable using cpu affinity for scheduling */
8859         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8860         return 1;
8861 }
8862
8863
8864 /**
8865  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8866  * @phba: pointer to lpfc hba data structure.
8867  *
8868  * This routine is invoked to enable the MSI-X interrupt vectors to device
8869  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8870  * is called to enable the MSI-X vectors. The device driver is responsible
8871  * for calling the individual request_irq() to register each MSI-X vector
8872  * with a interrupt handler, which is done in this function. Note that
8873  * later when device is unloading, the driver should always call free_irq()
8874  * on all MSI-X vectors it has done request_irq() on before calling
8875  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8876  * will be left with MSI-X enabled and leaks its vectors.
8877  *
8878  * Return codes
8879  * 0 - successful
8880  * other values - error
8881  **/
8882 static int
8883 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8884 {
8885         int vectors, rc, index;
8886
8887         /* Set up MSI-X multi-message vectors */
8888         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8889                 phba->sli4_hba.msix_entries[index].entry = index;
8890
8891         /* Configure MSI-X capability structure */
8892         vectors = phba->cfg_fcp_io_channel;
8893         if (phba->cfg_fof) {
8894                 phba->sli4_hba.msix_entries[index].entry = index;
8895                 vectors++;
8896         }
8897         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8898                                    2, vectors);
8899         if (rc < 0) {
8900                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8901                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8902                 goto vec_fail_out;
8903         }
8904         vectors = rc;
8905
8906         /* Log MSI-X vector assignment */
8907         for (index = 0; index < vectors; index++)
8908                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8909                                 "0489 MSI-X entry[%d]: vector=x%x "
8910                                 "message=%d\n", index,
8911                                 phba->sli4_hba.msix_entries[index].vector,
8912                                 phba->sli4_hba.msix_entries[index].entry);
8913
8914         /* Assign MSI-X vectors to interrupt handlers */
8915         for (index = 0; index < vectors; index++) {
8916                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8917                 snprintf((char *)&phba->sli4_hba.handler_name[index],
8918                          LPFC_SLI4_HANDLER_NAME_SZ,
8919                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8920
8921                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8922                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8923                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8924                 if (phba->cfg_fof && (index == (vectors - 1)))
8925                         rc = request_irq(
8926                                 phba->sli4_hba.msix_entries[index].vector,
8927                                  &lpfc_sli4_fof_intr_handler, IRQF_SHARED,
8928                                  (char *)&phba->sli4_hba.handler_name[index],
8929                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8930                 else
8931                         rc = request_irq(
8932                                 phba->sli4_hba.msix_entries[index].vector,
8933                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8934                                  (char *)&phba->sli4_hba.handler_name[index],
8935                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8936                 if (rc) {
8937                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8938                                         "0486 MSI-X fast-path (%d) "
8939                                         "request_irq failed (%d)\n", index, rc);
8940                         goto cfg_fail_out;
8941                 }
8942         }
8943
8944         if (phba->cfg_fof)
8945                 vectors--;
8946
8947         if (vectors != phba->cfg_fcp_io_channel) {
8948                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8949                                 "3238 Reducing IO channels to match number of "
8950                                 "MSI-X vectors, requested %d got %d\n",
8951                                 phba->cfg_fcp_io_channel, vectors);
8952                 phba->cfg_fcp_io_channel = vectors;
8953         }
8954
8955         lpfc_sli4_set_affinity(phba, vectors);
8956         return rc;
8957
8958 cfg_fail_out:
8959         /* free the irq already requested */
8960         for (--index; index >= 0; index--) {
8961                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8962                                           vector, NULL);
8963                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8964                          &phba->sli4_hba.fcp_eq_hdl[index]);
8965         }
8966
8967         /* Unconfigure MSI-X capability structure */
8968         pci_disable_msix(phba->pcidev);
8969
8970 vec_fail_out:
8971         return rc;
8972 }
8973
8974 /**
8975  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8976  * @phba: pointer to lpfc hba data structure.
8977  *
8978  * This routine is invoked to release the MSI-X vectors and then disable the
8979  * MSI-X interrupt mode to device with SLI-4 interface spec.
8980  **/
8981 static void
8982 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8983 {
8984         int index;
8985
8986         /* Free up MSI-X multi-message vectors */
8987         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8988                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8989                                           vector, NULL);
8990                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8991                          &phba->sli4_hba.fcp_eq_hdl[index]);
8992         }
8993         if (phba->cfg_fof) {
8994                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8995                          &phba->sli4_hba.fcp_eq_hdl[index]);
8996         }
8997         /* Disable MSI-X */
8998         pci_disable_msix(phba->pcidev);
8999
9000         return;
9001 }
9002
9003 /**
9004  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9005  * @phba: pointer to lpfc hba data structure.
9006  *
9007  * This routine is invoked to enable the MSI interrupt mode to device with
9008  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9009  * to enable the MSI vector. The device driver is responsible for calling
9010  * the request_irq() to register MSI vector with a interrupt the handler,
9011  * which is done in this function.
9012  *
9013  * Return codes
9014  *      0 - successful
9015  *      other values - error
9016  **/
9017 static int
9018 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9019 {
9020         int rc, index;
9021
9022         rc = pci_enable_msi(phba->pcidev);
9023         if (!rc)
9024                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9025                                 "0487 PCI enable MSI mode success.\n");
9026         else {
9027                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9028                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9029                 return rc;
9030         }
9031
9032         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9033                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9034         if (rc) {
9035                 pci_disable_msi(phba->pcidev);
9036                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9037                                 "0490 MSI request_irq failed (%d)\n", rc);
9038                 return rc;
9039         }
9040
9041         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9042                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9043                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9044         }
9045
9046         if (phba->cfg_fof) {
9047                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9048                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9049         }
9050         return 0;
9051 }
9052
9053 /**
9054  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9055  * @phba: pointer to lpfc hba data structure.
9056  *
9057  * This routine is invoked to disable the MSI interrupt mode to device with
9058  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9059  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9060  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9061  * its vector.
9062  **/
9063 static void
9064 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9065 {
9066         free_irq(phba->pcidev->irq, phba);
9067         pci_disable_msi(phba->pcidev);
9068         return;
9069 }
9070
9071 /**
9072  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9073  * @phba: pointer to lpfc hba data structure.
9074  *
9075  * This routine is invoked to enable device interrupt and associate driver's
9076  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9077  * interface spec. Depends on the interrupt mode configured to the driver,
9078  * the driver will try to fallback from the configured interrupt mode to an
9079  * interrupt mode which is supported by the platform, kernel, and device in
9080  * the order of:
9081  * MSI-X -> MSI -> IRQ.
9082  *
9083  * Return codes
9084  *      0 - successful
9085  *      other values - error
9086  **/
9087 static uint32_t
9088 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9089 {
9090         uint32_t intr_mode = LPFC_INTR_ERROR;
9091         int retval, index;
9092
9093         if (cfg_mode == 2) {
9094                 /* Preparation before conf_msi mbox cmd */
9095                 retval = 0;
9096                 if (!retval) {
9097                         /* Now, try to enable MSI-X interrupt mode */
9098                         retval = lpfc_sli4_enable_msix(phba);
9099                         if (!retval) {
9100                                 /* Indicate initialization to MSI-X mode */
9101                                 phba->intr_type = MSIX;
9102                                 intr_mode = 2;
9103                         }
9104                 }
9105         }
9106
9107         /* Fallback to MSI if MSI-X initialization failed */
9108         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9109                 retval = lpfc_sli4_enable_msi(phba);
9110                 if (!retval) {
9111                         /* Indicate initialization to MSI mode */
9112                         phba->intr_type = MSI;
9113                         intr_mode = 1;
9114                 }
9115         }
9116
9117         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9118         if (phba->intr_type == NONE) {
9119                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9120                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9121                 if (!retval) {
9122                         /* Indicate initialization to INTx mode */
9123                         phba->intr_type = INTx;
9124                         intr_mode = 0;
9125                         for (index = 0; index < phba->cfg_fcp_io_channel;
9126                              index++) {
9127                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9128                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9129                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9130                                         fcp_eq_in_use, 1);
9131                         }
9132                         if (phba->cfg_fof) {
9133                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9134                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9135                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9136                                         fcp_eq_in_use, 1);
9137                         }
9138                 }
9139         }
9140         return intr_mode;
9141 }
9142
9143 /**
9144  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9145  * @phba: pointer to lpfc hba data structure.
9146  *
9147  * This routine is invoked to disable device interrupt and disassociate
9148  * the driver's interrupt handler(s) from interrupt vector(s) to device
9149  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9150  * will release the interrupt vector(s) for the message signaled interrupt.
9151  **/
9152 static void
9153 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9154 {
9155         /* Disable the currently initialized interrupt mode */
9156         if (phba->intr_type == MSIX)
9157                 lpfc_sli4_disable_msix(phba);
9158         else if (phba->intr_type == MSI)
9159                 lpfc_sli4_disable_msi(phba);
9160         else if (phba->intr_type == INTx)
9161                 free_irq(phba->pcidev->irq, phba);
9162
9163         /* Reset interrupt management states */
9164         phba->intr_type = NONE;
9165         phba->sli.slistat.sli_intr = 0;
9166
9167         return;
9168 }
9169
9170 /**
9171  * lpfc_unset_hba - Unset SLI3 hba device initialization
9172  * @phba: pointer to lpfc hba data structure.
9173  *
9174  * This routine is invoked to unset the HBA device initialization steps to
9175  * a device with SLI-3 interface spec.
9176  **/
9177 static void
9178 lpfc_unset_hba(struct lpfc_hba *phba)
9179 {
9180         struct lpfc_vport *vport = phba->pport;
9181         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9182
9183         spin_lock_irq(shost->host_lock);
9184         vport->load_flag |= FC_UNLOADING;
9185         spin_unlock_irq(shost->host_lock);
9186
9187         kfree(phba->vpi_bmask);
9188         kfree(phba->vpi_ids);
9189
9190         lpfc_stop_hba_timers(phba);
9191
9192         phba->pport->work_port_events = 0;
9193
9194         lpfc_sli_hba_down(phba);
9195
9196         lpfc_sli_brdrestart(phba);
9197
9198         lpfc_sli_disable_intr(phba);
9199
9200         return;
9201 }
9202
9203 /**
9204  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9205  * @phba: Pointer to HBA context object.
9206  *
9207  * This function is called in the SLI4 code path to wait for completion
9208  * of device's XRIs exchange busy. It will check the XRI exchange busy
9209  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9210  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9211  * I/Os every 30 seconds, log error message, and wait forever. Only when
9212  * all XRI exchange busy complete, the driver unload shall proceed with
9213  * invoking the function reset ioctl mailbox command to the CNA and the
9214  * the rest of the driver unload resource release.
9215  **/
9216 static void
9217 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9218 {
9219         int wait_time = 0;
9220         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9221         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9222
9223         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9224                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9225                         if (!fcp_xri_cmpl)
9226                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9227                                                 "2877 FCP XRI exchange busy "
9228                                                 "wait time: %d seconds.\n",
9229                                                 wait_time/1000);
9230                         if (!els_xri_cmpl)
9231                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9232                                                 "2878 ELS XRI exchange busy "
9233                                                 "wait time: %d seconds.\n",
9234                                                 wait_time/1000);
9235                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9236                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9237                 } else {
9238                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9239                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9240                 }
9241                 fcp_xri_cmpl =
9242                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9243                 els_xri_cmpl =
9244                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9245         }
9246 }
9247
9248 /**
9249  * lpfc_sli4_hba_unset - Unset the fcoe hba
9250  * @phba: Pointer to HBA context object.
9251  *
9252  * This function is called in the SLI4 code path to reset the HBA's FCoE
9253  * function. The caller is not required to hold any lock. This routine
9254  * issues PCI function reset mailbox command to reset the FCoE function.
9255  * At the end of the function, it calls lpfc_hba_down_post function to
9256  * free any pending commands.
9257  **/
9258 static void
9259 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9260 {
9261         int wait_cnt = 0;
9262         LPFC_MBOXQ_t *mboxq;
9263         struct pci_dev *pdev = phba->pcidev;
9264
9265         lpfc_stop_hba_timers(phba);
9266         phba->sli4_hba.intr_enable = 0;
9267
9268         /*
9269          * Gracefully wait out the potential current outstanding asynchronous
9270          * mailbox command.
9271          */
9272
9273         /* First, block any pending async mailbox command from posted */
9274         spin_lock_irq(&phba->hbalock);
9275         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9276         spin_unlock_irq(&phba->hbalock);
9277         /* Now, trying to wait it out if we can */
9278         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9279                 msleep(10);
9280                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9281                         break;
9282         }
9283         /* Forcefully release the outstanding mailbox command if timed out */
9284         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9285                 spin_lock_irq(&phba->hbalock);
9286                 mboxq = phba->sli.mbox_active;
9287                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9288                 __lpfc_mbox_cmpl_put(phba, mboxq);
9289                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9290                 phba->sli.mbox_active = NULL;
9291                 spin_unlock_irq(&phba->hbalock);
9292         }
9293
9294         /* Abort all iocbs associated with the hba */
9295         lpfc_sli_hba_iocb_abort(phba);
9296
9297         /* Wait for completion of device XRI exchange busy */
9298         lpfc_sli4_xri_exchange_busy_wait(phba);
9299
9300         /* Disable PCI subsystem interrupt */
9301         lpfc_sli4_disable_intr(phba);
9302
9303         /* Disable SR-IOV if enabled */
9304         if (phba->cfg_sriov_nr_virtfn)
9305                 pci_disable_sriov(pdev);
9306
9307         /* Stop kthread signal shall trigger work_done one more time */
9308         kthread_stop(phba->worker_thread);
9309
9310         /* Reset SLI4 HBA FCoE function */
9311         lpfc_pci_function_reset(phba);
9312         lpfc_sli4_queue_destroy(phba);
9313
9314         /* Stop the SLI4 device port */
9315         phba->pport->work_port_events = 0;
9316 }
9317
9318  /**
9319  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9320  * @phba: Pointer to HBA context object.
9321  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9322  *
9323  * This function is called in the SLI4 code path to read the port's
9324  * sli4 capabilities.
9325  *
9326  * This function may be be called from any context that can block-wait
9327  * for the completion.  The expectation is that this routine is called
9328  * typically from probe_one or from the online routine.
9329  **/
9330 int
9331 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9332 {
9333         int rc;
9334         struct lpfc_mqe *mqe;
9335         struct lpfc_pc_sli4_params *sli4_params;
9336         uint32_t mbox_tmo;
9337
9338         rc = 0;
9339         mqe = &mboxq->u.mqe;
9340
9341         /* Read the port's SLI4 Parameters port capabilities */
9342         lpfc_pc_sli4_params(mboxq);
9343         if (!phba->sli4_hba.intr_enable)
9344                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9345         else {
9346                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9347                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9348         }
9349
9350         if (unlikely(rc))
9351                 return 1;
9352
9353         sli4_params = &phba->sli4_hba.pc_sli4_params;
9354         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9355         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9356         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9357         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9358                                              &mqe->un.sli4_params);
9359         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9360                                              &mqe->un.sli4_params);
9361         sli4_params->proto_types = mqe->un.sli4_params.word3;
9362         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9363         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9364         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9365         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9366         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9367         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9368         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9369         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9370         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9371         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9372         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9373         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9374         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9375         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9376         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9377         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9378         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9379         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9380         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9381         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9382
9383         /* Make sure that sge_supp_len can be handled by the driver */
9384         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9385                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9386
9387         return rc;
9388 }
9389
9390 /**
9391  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9392  * @phba: Pointer to HBA context object.
9393  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9394  *
9395  * This function is called in the SLI4 code path to read the port's
9396  * sli4 capabilities.
9397  *
9398  * This function may be be called from any context that can block-wait
9399  * for the completion.  The expectation is that this routine is called
9400  * typically from probe_one or from the online routine.
9401  **/
9402 int
9403 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9404 {
9405         int rc;
9406         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9407         struct lpfc_pc_sli4_params *sli4_params;
9408         uint32_t mbox_tmo;
9409         int length;
9410         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9411
9412         /*
9413          * By default, the driver assumes the SLI4 port requires RPI
9414          * header postings.  The SLI4_PARAM response will correct this
9415          * assumption.
9416          */
9417         phba->sli4_hba.rpi_hdrs_in_use = 1;
9418
9419         /* Read the port's SLI4 Config Parameters */
9420         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9421                   sizeof(struct lpfc_sli4_cfg_mhdr));
9422         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9423                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9424                          length, LPFC_SLI4_MBX_EMBED);
9425         if (!phba->sli4_hba.intr_enable)
9426                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9427         else {
9428                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9429                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9430         }
9431         if (unlikely(rc))
9432                 return rc;
9433         sli4_params = &phba->sli4_hba.pc_sli4_params;
9434         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9435         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9436         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9437         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9438         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9439                                              mbx_sli4_parameters);
9440         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9441                                              mbx_sli4_parameters);
9442         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9443                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9444         else
9445                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9446         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9447         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9448         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9449         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9450         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9451         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9452         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9453         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9454         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9455                                             mbx_sli4_parameters);
9456         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9457                                            mbx_sli4_parameters);
9458         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9459         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9460
9461         /* Make sure that sge_supp_len can be handled by the driver */
9462         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9463                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9464
9465         return 0;
9466 }
9467
9468 /**
9469  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9470  * @pdev: pointer to PCI device
9471  * @pid: pointer to PCI device identifier
9472  *
9473  * This routine is to be called to attach a device with SLI-3 interface spec
9474  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9475  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9476  * information of the device and driver to see if the driver state that it can
9477  * support this kind of device. If the match is successful, the driver core
9478  * invokes this routine. If this routine determines it can claim the HBA, it
9479  * does all the initialization that it needs to do to handle the HBA properly.
9480  *
9481  * Return code
9482  *      0 - driver can claim the device
9483  *      negative value - driver can not claim the device
9484  **/
9485 static int
9486 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9487 {
9488         struct lpfc_hba   *phba;
9489         struct lpfc_vport *vport = NULL;
9490         struct Scsi_Host  *shost = NULL;
9491         int error;
9492         uint32_t cfg_mode, intr_mode;
9493
9494         /* Allocate memory for HBA structure */
9495         phba = lpfc_hba_alloc(pdev);
9496         if (!phba)
9497                 return -ENOMEM;
9498
9499         /* Perform generic PCI device enabling operation */
9500         error = lpfc_enable_pci_dev(phba);
9501         if (error)
9502                 goto out_free_phba;
9503
9504         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9505         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9506         if (error)
9507                 goto out_disable_pci_dev;
9508
9509         /* Set up SLI-3 specific device PCI memory space */
9510         error = lpfc_sli_pci_mem_setup(phba);
9511         if (error) {
9512                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9513                                 "1402 Failed to set up pci memory space.\n");
9514                 goto out_disable_pci_dev;
9515         }
9516
9517         /* Set up phase-1 common device driver resources */
9518         error = lpfc_setup_driver_resource_phase1(phba);
9519         if (error) {
9520                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9521                                 "1403 Failed to set up driver resource.\n");
9522                 goto out_unset_pci_mem_s3;
9523         }
9524
9525         /* Set up SLI-3 specific device driver resources */
9526         error = lpfc_sli_driver_resource_setup(phba);
9527         if (error) {
9528                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9529                                 "1404 Failed to set up driver resource.\n");
9530                 goto out_unset_pci_mem_s3;
9531         }
9532
9533         /* Initialize and populate the iocb list per host */
9534         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9535         if (error) {
9536                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9537                                 "1405 Failed to initialize iocb list.\n");
9538                 goto out_unset_driver_resource_s3;
9539         }
9540
9541         /* Set up common device driver resources */
9542         error = lpfc_setup_driver_resource_phase2(phba);
9543         if (error) {
9544                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9545                                 "1406 Failed to set up driver resource.\n");
9546                 goto out_free_iocb_list;
9547         }
9548
9549         /* Get the default values for Model Name and Description */
9550         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9551
9552         /* Create SCSI host to the physical port */
9553         error = lpfc_create_shost(phba);
9554         if (error) {
9555                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9556                                 "1407 Failed to create scsi host.\n");
9557                 goto out_unset_driver_resource;
9558         }
9559
9560         /* Configure sysfs attributes */
9561         vport = phba->pport;
9562         error = lpfc_alloc_sysfs_attr(vport);
9563         if (error) {
9564                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9565                                 "1476 Failed to allocate sysfs attr\n");
9566                 goto out_destroy_shost;
9567         }
9568
9569         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9570         /* Now, trying to enable interrupt and bring up the device */
9571         cfg_mode = phba->cfg_use_msi;
9572         while (true) {
9573                 /* Put device to a known state before enabling interrupt */
9574                 lpfc_stop_port(phba);
9575                 /* Configure and enable interrupt */
9576                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9577                 if (intr_mode == LPFC_INTR_ERROR) {
9578                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9579                                         "0431 Failed to enable interrupt.\n");
9580                         error = -ENODEV;
9581                         goto out_free_sysfs_attr;
9582                 }
9583                 /* SLI-3 HBA setup */
9584                 if (lpfc_sli_hba_setup(phba)) {
9585                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9586                                         "1477 Failed to set up hba\n");
9587                         error = -ENODEV;
9588                         goto out_remove_device;
9589                 }
9590
9591                 /* Wait 50ms for the interrupts of previous mailbox commands */
9592                 msleep(50);
9593                 /* Check active interrupts on message signaled interrupts */
9594                 if (intr_mode == 0 ||
9595                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9596                         /* Log the current active interrupt mode */
9597                         phba->intr_mode = intr_mode;
9598                         lpfc_log_intr_mode(phba, intr_mode);
9599                         break;
9600                 } else {
9601                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9602                                         "0447 Configure interrupt mode (%d) "
9603                                         "failed active interrupt test.\n",
9604                                         intr_mode);
9605                         /* Disable the current interrupt mode */
9606                         lpfc_sli_disable_intr(phba);
9607                         /* Try next level of interrupt mode */
9608                         cfg_mode = --intr_mode;
9609                 }
9610         }
9611
9612         /* Perform post initialization setup */
9613         lpfc_post_init_setup(phba);
9614
9615         /* Check if there are static vports to be created. */
9616         lpfc_create_static_vport(phba);
9617
9618         return 0;
9619
9620 out_remove_device:
9621         lpfc_unset_hba(phba);
9622 out_free_sysfs_attr:
9623         lpfc_free_sysfs_attr(vport);
9624 out_destroy_shost:
9625         lpfc_destroy_shost(phba);
9626 out_unset_driver_resource:
9627         lpfc_unset_driver_resource_phase2(phba);
9628 out_free_iocb_list:
9629         lpfc_free_iocb_list(phba);
9630 out_unset_driver_resource_s3:
9631         lpfc_sli_driver_resource_unset(phba);
9632 out_unset_pci_mem_s3:
9633         lpfc_sli_pci_mem_unset(phba);
9634 out_disable_pci_dev:
9635         lpfc_disable_pci_dev(phba);
9636         if (shost)
9637                 scsi_host_put(shost);
9638 out_free_phba:
9639         lpfc_hba_free(phba);
9640         return error;
9641 }
9642
9643 /**
9644  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9645  * @pdev: pointer to PCI device
9646  *
9647  * This routine is to be called to disattach a device with SLI-3 interface
9648  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9649  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9650  * device to be removed from the PCI subsystem properly.
9651  **/
9652 static void
9653 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9654 {
9655         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9656         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9657         struct lpfc_vport **vports;
9658         struct lpfc_hba   *phba = vport->phba;
9659         int i;
9660         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9661
9662         spin_lock_irq(&phba->hbalock);
9663         vport->load_flag |= FC_UNLOADING;
9664         spin_unlock_irq(&phba->hbalock);
9665
9666         lpfc_free_sysfs_attr(vport);
9667
9668         /* Release all the vports against this physical port */
9669         vports = lpfc_create_vport_work_array(phba);
9670         if (vports != NULL)
9671                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9672                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9673                                 continue;
9674                         fc_vport_terminate(vports[i]->fc_vport);
9675                 }
9676         lpfc_destroy_vport_work_array(phba, vports);
9677
9678         /* Remove FC host and then SCSI host with the physical port */
9679         fc_remove_host(shost);
9680         scsi_remove_host(shost);
9681         lpfc_cleanup(vport);
9682
9683         /*
9684          * Bring down the SLI Layer. This step disable all interrupts,
9685          * clears the rings, discards all mailbox commands, and resets
9686          * the HBA.
9687          */
9688
9689         /* HBA interrupt will be disabled after this call */
9690         lpfc_sli_hba_down(phba);
9691         /* Stop kthread signal shall trigger work_done one more time */
9692         kthread_stop(phba->worker_thread);
9693         /* Final cleanup of txcmplq and reset the HBA */
9694         lpfc_sli_brdrestart(phba);
9695
9696         kfree(phba->vpi_bmask);
9697         kfree(phba->vpi_ids);
9698
9699         lpfc_stop_hba_timers(phba);
9700         spin_lock_irq(&phba->hbalock);
9701         list_del_init(&vport->listentry);
9702         spin_unlock_irq(&phba->hbalock);
9703
9704         lpfc_debugfs_terminate(vport);
9705
9706         /* Disable SR-IOV if enabled */
9707         if (phba->cfg_sriov_nr_virtfn)
9708                 pci_disable_sriov(pdev);
9709
9710         /* Disable interrupt */
9711         lpfc_sli_disable_intr(phba);
9712
9713         scsi_host_put(shost);
9714
9715         /*
9716          * Call scsi_free before mem_free since scsi bufs are released to their
9717          * corresponding pools here.
9718          */
9719         lpfc_scsi_free(phba);
9720         lpfc_mem_free_all(phba);
9721
9722         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9723                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9724
9725         /* Free resources associated with SLI2 interface */
9726         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9727                           phba->slim2p.virt, phba->slim2p.phys);
9728
9729         /* unmap adapter SLIM and Control Registers */
9730         iounmap(phba->ctrl_regs_memmap_p);
9731         iounmap(phba->slim_memmap_p);
9732
9733         lpfc_hba_free(phba);
9734
9735         pci_release_selected_regions(pdev, bars);
9736         pci_disable_device(pdev);
9737 }
9738
9739 /**
9740  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9741  * @pdev: pointer to PCI device
9742  * @msg: power management message
9743  *
9744  * This routine is to be called from the kernel's PCI subsystem to support
9745  * system Power Management (PM) to device with SLI-3 interface spec. When
9746  * PM invokes this method, it quiesces the device by stopping the driver's
9747  * worker thread for the device, turning off device's interrupt and DMA,
9748  * and bring the device offline. Note that as the driver implements the
9749  * minimum PM requirements to a power-aware driver's PM support for the
9750  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9751  * to the suspend() method call will be treated as SUSPEND and the driver will
9752  * fully reinitialize its device during resume() method call, the driver will
9753  * set device to PCI_D3hot state in PCI config space instead of setting it
9754  * according to the @msg provided by the PM.
9755  *
9756  * Return code
9757  *      0 - driver suspended the device
9758  *      Error otherwise
9759  **/
9760 static int
9761 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9762 {
9763         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9764         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9765
9766         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9767                         "0473 PCI device Power Management suspend.\n");
9768
9769         /* Bring down the device */
9770         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9771         lpfc_offline(phba);
9772         kthread_stop(phba->worker_thread);
9773
9774         /* Disable interrupt from device */
9775         lpfc_sli_disable_intr(phba);
9776
9777         /* Save device state to PCI config space */
9778         pci_save_state(pdev);
9779         pci_set_power_state(pdev, PCI_D3hot);
9780
9781         return 0;
9782 }
9783
9784 /**
9785  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9786  * @pdev: pointer to PCI device
9787  *
9788  * This routine is to be called from the kernel's PCI subsystem to support
9789  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9790  * invokes this method, it restores the device's PCI config space state and
9791  * fully reinitializes the device and brings it online. Note that as the
9792  * driver implements the minimum PM requirements to a power-aware driver's
9793  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9794  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9795  * driver will fully reinitialize its device during resume() method call,
9796  * the device will be set to PCI_D0 directly in PCI config space before
9797  * restoring the state.
9798  *
9799  * Return code
9800  *      0 - driver suspended the device
9801  *      Error otherwise
9802  **/
9803 static int
9804 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9805 {
9806         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9807         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9808         uint32_t intr_mode;
9809         int error;
9810
9811         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9812                         "0452 PCI device Power Management resume.\n");
9813
9814         /* Restore device state from PCI config space */
9815         pci_set_power_state(pdev, PCI_D0);
9816         pci_restore_state(pdev);
9817
9818         /*
9819          * As the new kernel behavior of pci_restore_state() API call clears
9820          * device saved_state flag, need to save the restored state again.
9821          */
9822         pci_save_state(pdev);
9823
9824         if (pdev->is_busmaster)
9825                 pci_set_master(pdev);
9826
9827         /* Startup the kernel thread for this host adapter. */
9828         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9829                                         "lpfc_worker_%d", phba->brd_no);
9830         if (IS_ERR(phba->worker_thread)) {
9831                 error = PTR_ERR(phba->worker_thread);
9832                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9833                                 "0434 PM resume failed to start worker "
9834                                 "thread: error=x%x.\n", error);
9835                 return error;
9836         }
9837
9838         /* Configure and enable interrupt */
9839         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9840         if (intr_mode == LPFC_INTR_ERROR) {
9841                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9842                                 "0430 PM resume Failed to enable interrupt\n");
9843                 return -EIO;
9844         } else
9845                 phba->intr_mode = intr_mode;
9846
9847         /* Restart HBA and bring it online */
9848         lpfc_sli_brdrestart(phba);
9849         lpfc_online(phba);
9850
9851         /* Log the current active interrupt mode */
9852         lpfc_log_intr_mode(phba, phba->intr_mode);
9853
9854         return 0;
9855 }
9856
9857 /**
9858  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9859  * @phba: pointer to lpfc hba data structure.
9860  *
9861  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9862  * aborts all the outstanding SCSI I/Os to the pci device.
9863  **/
9864 static void
9865 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9866 {
9867         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9868                         "2723 PCI channel I/O abort preparing for recovery\n");
9869
9870         /*
9871          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9872          * and let the SCSI mid-layer to retry them to recover.
9873          */
9874         lpfc_sli_abort_fcp_rings(phba);
9875 }
9876
9877 /**
9878  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9879  * @phba: pointer to lpfc hba data structure.
9880  *
9881  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9882  * disables the device interrupt and pci device, and aborts the internal FCP
9883  * pending I/Os.
9884  **/
9885 static void
9886 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9887 {
9888         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9889                         "2710 PCI channel disable preparing for reset\n");
9890
9891         /* Block any management I/Os to the device */
9892         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9893
9894         /* Block all SCSI devices' I/Os on the host */
9895         lpfc_scsi_dev_block(phba);
9896
9897         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9898         lpfc_sli_flush_fcp_rings(phba);
9899
9900         /* stop all timers */
9901         lpfc_stop_hba_timers(phba);
9902
9903         /* Disable interrupt and pci device */
9904         lpfc_sli_disable_intr(phba);
9905         pci_disable_device(phba->pcidev);
9906 }
9907
9908 /**
9909  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9910  * @phba: pointer to lpfc hba data structure.
9911  *
9912  * This routine is called to prepare the SLI3 device for PCI slot permanently
9913  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9914  * pending I/Os.
9915  **/
9916 static void
9917 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9918 {
9919         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9920                         "2711 PCI channel permanent disable for failure\n");
9921         /* Block all SCSI devices' I/Os on the host */
9922         lpfc_scsi_dev_block(phba);
9923
9924         /* stop all timers */
9925         lpfc_stop_hba_timers(phba);
9926
9927         /* Clean up all driver's outstanding SCSI I/Os */
9928         lpfc_sli_flush_fcp_rings(phba);
9929 }
9930
9931 /**
9932  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9933  * @pdev: pointer to PCI device.
9934  * @state: the current PCI connection state.
9935  *
9936  * This routine is called from the PCI subsystem for I/O error handling to
9937  * device with SLI-3 interface spec. This function is called by the PCI
9938  * subsystem after a PCI bus error affecting this device has been detected.
9939  * When this function is invoked, it will need to stop all the I/Os and
9940  * interrupt(s) to the device. Once that is done, it will return
9941  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9942  * as desired.
9943  *
9944  * Return codes
9945  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9946  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9947  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9948  **/
9949 static pci_ers_result_t
9950 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9951 {
9952         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9953         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9954
9955         switch (state) {
9956         case pci_channel_io_normal:
9957                 /* Non-fatal error, prepare for recovery */
9958                 lpfc_sli_prep_dev_for_recover(phba);
9959                 return PCI_ERS_RESULT_CAN_RECOVER;
9960         case pci_channel_io_frozen:
9961                 /* Fatal error, prepare for slot reset */
9962                 lpfc_sli_prep_dev_for_reset(phba);
9963                 return PCI_ERS_RESULT_NEED_RESET;
9964         case pci_channel_io_perm_failure:
9965                 /* Permanent failure, prepare for device down */
9966                 lpfc_sli_prep_dev_for_perm_failure(phba);
9967                 return PCI_ERS_RESULT_DISCONNECT;
9968         default:
9969                 /* Unknown state, prepare and request slot reset */
9970                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9971                                 "0472 Unknown PCI error state: x%x\n", state);
9972                 lpfc_sli_prep_dev_for_reset(phba);
9973                 return PCI_ERS_RESULT_NEED_RESET;
9974         }
9975 }
9976
9977 /**
9978  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9979  * @pdev: pointer to PCI device.
9980  *
9981  * This routine is called from the PCI subsystem for error handling to
9982  * device with SLI-3 interface spec. This is called after PCI bus has been
9983  * reset to restart the PCI card from scratch, as if from a cold-boot.
9984  * During the PCI subsystem error recovery, after driver returns
9985  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9986  * recovery and then call this routine before calling the .resume method
9987  * to recover the device. This function will initialize the HBA device,
9988  * enable the interrupt, but it will just put the HBA to offline state
9989  * without passing any I/O traffic.
9990  *
9991  * Return codes
9992  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9993  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9994  */
9995 static pci_ers_result_t
9996 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9997 {
9998         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9999         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10000         struct lpfc_sli *psli = &phba->sli;
10001         uint32_t intr_mode;
10002
10003         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10004         if (pci_enable_device_mem(pdev)) {
10005                 printk(KERN_ERR "lpfc: Cannot re-enable "
10006                         "PCI device after reset.\n");
10007                 return PCI_ERS_RESULT_DISCONNECT;
10008         }
10009
10010         pci_restore_state(pdev);
10011
10012         /*
10013          * As the new kernel behavior of pci_restore_state() API call clears
10014          * device saved_state flag, need to save the restored state again.
10015          */
10016         pci_save_state(pdev);
10017
10018         if (pdev->is_busmaster)
10019                 pci_set_master(pdev);
10020
10021         spin_lock_irq(&phba->hbalock);
10022         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10023         spin_unlock_irq(&phba->hbalock);
10024
10025         /* Configure and enable interrupt */
10026         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10027         if (intr_mode == LPFC_INTR_ERROR) {
10028                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10029                                 "0427 Cannot re-enable interrupt after "
10030                                 "slot reset.\n");
10031                 return PCI_ERS_RESULT_DISCONNECT;
10032         } else
10033                 phba->intr_mode = intr_mode;
10034
10035         /* Take device offline, it will perform cleanup */
10036         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10037         lpfc_offline(phba);
10038         lpfc_sli_brdrestart(phba);
10039
10040         /* Log the current active interrupt mode */
10041         lpfc_log_intr_mode(phba, phba->intr_mode);
10042
10043         return PCI_ERS_RESULT_RECOVERED;
10044 }
10045
10046 /**
10047  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10048  * @pdev: pointer to PCI device
10049  *
10050  * This routine is called from the PCI subsystem for error handling to device
10051  * with SLI-3 interface spec. It is called when kernel error recovery tells
10052  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10053  * error recovery. After this call, traffic can start to flow from this device
10054  * again.
10055  */
10056 static void
10057 lpfc_io_resume_s3(struct pci_dev *pdev)
10058 {
10059         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10060         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10061
10062         /* Bring device online, it will be no-op for non-fatal error resume */
10063         lpfc_online(phba);
10064
10065         /* Clean up Advanced Error Reporting (AER) if needed */
10066         if (phba->hba_flag & HBA_AER_ENABLED)
10067                 pci_cleanup_aer_uncorrect_error_status(pdev);
10068 }
10069
10070 /**
10071  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10072  * @phba: pointer to lpfc hba data structure.
10073  *
10074  * returns the number of ELS/CT IOCBs to reserve
10075  **/
10076 int
10077 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10078 {
10079         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10080
10081         if (phba->sli_rev == LPFC_SLI_REV4) {
10082                 if (max_xri <= 100)
10083                         return 10;
10084                 else if (max_xri <= 256)
10085                         return 25;
10086                 else if (max_xri <= 512)
10087                         return 50;
10088                 else if (max_xri <= 1024)
10089                         return 100;
10090                 else if (max_xri <= 1536)
10091                         return 150;
10092                 else if (max_xri <= 2048)
10093                         return 200;
10094                 else
10095                         return 250;
10096         } else
10097                 return 0;
10098 }
10099
10100 /**
10101  * lpfc_write_firmware - attempt to write a firmware image to the port
10102  * @fw: pointer to firmware image returned from request_firmware.
10103  * @phba: pointer to lpfc hba data structure.
10104  *
10105  **/
10106 static void
10107 lpfc_write_firmware(const struct firmware *fw, void *context)
10108 {
10109         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10110         char fwrev[FW_REV_STR_SIZE];
10111         struct lpfc_grp_hdr *image;
10112         struct list_head dma_buffer_list;
10113         int i, rc = 0;
10114         struct lpfc_dmabuf *dmabuf, *next;
10115         uint32_t offset = 0, temp_offset = 0;
10116
10117         /* It can be null in no-wait mode, sanity check */
10118         if (!fw) {
10119                 rc = -ENXIO;
10120                 goto out;
10121         }
10122         image = (struct lpfc_grp_hdr *)fw->data;
10123
10124         INIT_LIST_HEAD(&dma_buffer_list);
10125         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10126             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10127              LPFC_FILE_TYPE_GROUP) ||
10128             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10129             (be32_to_cpu(image->size) != fw->size)) {
10130                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10131                                 "3022 Invalid FW image found. "
10132                                 "Magic:%x Type:%x ID:%x\n",
10133                                 be32_to_cpu(image->magic_number),
10134                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10135                                 bf_get_be32(lpfc_grp_hdr_id, image));
10136                 rc = -EINVAL;
10137                 goto release_out;
10138         }
10139         lpfc_decode_firmware_rev(phba, fwrev, 1);
10140         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10141                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10142                                 "3023 Updating Firmware, Current Version:%s "
10143                                 "New Version:%s\n",
10144                                 fwrev, image->revision);
10145                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10146                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10147                                          GFP_KERNEL);
10148                         if (!dmabuf) {
10149                                 rc = -ENOMEM;
10150                                 goto release_out;
10151                         }
10152                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10153                                                           SLI4_PAGE_SIZE,
10154                                                           &dmabuf->phys,
10155                                                           GFP_KERNEL);
10156                         if (!dmabuf->virt) {
10157                                 kfree(dmabuf);
10158                                 rc = -ENOMEM;
10159                                 goto release_out;
10160                         }
10161                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10162                 }
10163                 while (offset < fw->size) {
10164                         temp_offset = offset;
10165                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10166                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10167                                         memcpy(dmabuf->virt,
10168                                                fw->data + temp_offset,
10169                                                fw->size - temp_offset);
10170                                         temp_offset = fw->size;
10171                                         break;
10172                                 }
10173                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10174                                        SLI4_PAGE_SIZE);
10175                                 temp_offset += SLI4_PAGE_SIZE;
10176                         }
10177                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10178                                     (fw->size - offset), &offset);
10179                         if (rc)
10180                                 goto release_out;
10181                 }
10182                 rc = offset;
10183         }
10184
10185 release_out:
10186         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10187                 list_del(&dmabuf->list);
10188                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10189                                   dmabuf->virt, dmabuf->phys);
10190                 kfree(dmabuf);
10191         }
10192         release_firmware(fw);
10193 out:
10194         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10195                         "3024 Firmware update done: %d.\n", rc);
10196         return;
10197 }
10198
10199 /**
10200  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10201  * @phba: pointer to lpfc hba data structure.
10202  *
10203  * This routine is called to perform Linux generic firmware upgrade on device
10204  * that supports such feature.
10205  **/
10206 int
10207 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10208 {
10209         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10210         int ret;
10211         const struct firmware *fw;
10212
10213         /* Only supported on SLI4 interface type 2 for now */
10214         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10215             LPFC_SLI_INTF_IF_TYPE_2)
10216                 return -EPERM;
10217
10218         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10219
10220         if (fw_upgrade == INT_FW_UPGRADE) {
10221                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10222                                         file_name, &phba->pcidev->dev,
10223                                         GFP_KERNEL, (void *)phba,
10224                                         lpfc_write_firmware);
10225         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10226                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10227                 if (!ret)
10228                         lpfc_write_firmware(fw, (void *)phba);
10229         } else {
10230                 ret = -EINVAL;
10231         }
10232
10233         return ret;
10234 }
10235
10236 /**
10237  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10238  * @pdev: pointer to PCI device
10239  * @pid: pointer to PCI device identifier
10240  *
10241  * This routine is called from the kernel's PCI subsystem to device with
10242  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10243  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10244  * information of the device and driver to see if the driver state that it
10245  * can support this kind of device. If the match is successful, the driver
10246  * core invokes this routine. If this routine determines it can claim the HBA,
10247  * it does all the initialization that it needs to do to handle the HBA
10248  * properly.
10249  *
10250  * Return code
10251  *      0 - driver can claim the device
10252  *      negative value - driver can not claim the device
10253  **/
10254 static int
10255 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10256 {
10257         struct lpfc_hba   *phba;
10258         struct lpfc_vport *vport = NULL;
10259         struct Scsi_Host  *shost = NULL;
10260         int error, ret;
10261         uint32_t cfg_mode, intr_mode;
10262         int adjusted_fcp_io_channel;
10263
10264         /* Allocate memory for HBA structure */
10265         phba = lpfc_hba_alloc(pdev);
10266         if (!phba)
10267                 return -ENOMEM;
10268
10269         /* Perform generic PCI device enabling operation */
10270         error = lpfc_enable_pci_dev(phba);
10271         if (error)
10272                 goto out_free_phba;
10273
10274         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10275         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10276         if (error)
10277                 goto out_disable_pci_dev;
10278
10279         /* Set up SLI-4 specific device PCI memory space */
10280         error = lpfc_sli4_pci_mem_setup(phba);
10281         if (error) {
10282                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10283                                 "1410 Failed to set up pci memory space.\n");
10284                 goto out_disable_pci_dev;
10285         }
10286
10287         /* Set up phase-1 common device driver resources */
10288         error = lpfc_setup_driver_resource_phase1(phba);
10289         if (error) {
10290                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10291                                 "1411 Failed to set up driver resource.\n");
10292                 goto out_unset_pci_mem_s4;
10293         }
10294
10295         /* Set up SLI-4 Specific device driver resources */
10296         error = lpfc_sli4_driver_resource_setup(phba);
10297         if (error) {
10298                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10299                                 "1412 Failed to set up driver resource.\n");
10300                 goto out_unset_pci_mem_s4;
10301         }
10302
10303         /* Initialize and populate the iocb list per host */
10304
10305         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10306                         "2821 initialize iocb list %d.\n",
10307                         phba->cfg_iocb_cnt*1024);
10308         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10309
10310         if (error) {
10311                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10312                                 "1413 Failed to initialize iocb list.\n");
10313                 goto out_unset_driver_resource_s4;
10314         }
10315
10316         INIT_LIST_HEAD(&phba->active_rrq_list);
10317         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10318
10319         /* Set up common device driver resources */
10320         error = lpfc_setup_driver_resource_phase2(phba);
10321         if (error) {
10322                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10323                                 "1414 Failed to set up driver resource.\n");
10324                 goto out_free_iocb_list;
10325         }
10326
10327         /* Get the default values for Model Name and Description */
10328         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10329
10330         /* Create SCSI host to the physical port */
10331         error = lpfc_create_shost(phba);
10332         if (error) {
10333                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10334                                 "1415 Failed to create scsi host.\n");
10335                 goto out_unset_driver_resource;
10336         }
10337
10338         /* Configure sysfs attributes */
10339         vport = phba->pport;
10340         error = lpfc_alloc_sysfs_attr(vport);
10341         if (error) {
10342                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10343                                 "1416 Failed to allocate sysfs attr\n");
10344                 goto out_destroy_shost;
10345         }
10346
10347         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10348         /* Now, trying to enable interrupt and bring up the device */
10349         cfg_mode = phba->cfg_use_msi;
10350
10351         /* Put device to a known state before enabling interrupt */
10352         lpfc_stop_port(phba);
10353         /* Configure and enable interrupt */
10354         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10355         if (intr_mode == LPFC_INTR_ERROR) {
10356                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10357                                 "0426 Failed to enable interrupt.\n");
10358                 error = -ENODEV;
10359                 goto out_free_sysfs_attr;
10360         }
10361         /* Default to single EQ for non-MSI-X */
10362         if (phba->intr_type != MSIX)
10363                 adjusted_fcp_io_channel = 1;
10364         else
10365                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10366         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10367         /* Set up SLI-4 HBA */
10368         if (lpfc_sli4_hba_setup(phba)) {
10369                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10370                                 "1421 Failed to set up hba\n");
10371                 error = -ENODEV;
10372                 goto out_disable_intr;
10373         }
10374
10375         /* Log the current active interrupt mode */
10376         phba->intr_mode = intr_mode;
10377         lpfc_log_intr_mode(phba, intr_mode);
10378
10379         /* Perform post initialization setup */
10380         lpfc_post_init_setup(phba);
10381
10382         /* check for firmware upgrade or downgrade */
10383         if (phba->cfg_request_firmware_upgrade)
10384                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10385
10386         /* Check if there are static vports to be created. */
10387         lpfc_create_static_vport(phba);
10388         return 0;
10389
10390 out_disable_intr:
10391         lpfc_sli4_disable_intr(phba);
10392 out_free_sysfs_attr:
10393         lpfc_free_sysfs_attr(vport);
10394 out_destroy_shost:
10395         lpfc_destroy_shost(phba);
10396 out_unset_driver_resource:
10397         lpfc_unset_driver_resource_phase2(phba);
10398 out_free_iocb_list:
10399         lpfc_free_iocb_list(phba);
10400 out_unset_driver_resource_s4:
10401         lpfc_sli4_driver_resource_unset(phba);
10402 out_unset_pci_mem_s4:
10403         lpfc_sli4_pci_mem_unset(phba);
10404 out_disable_pci_dev:
10405         lpfc_disable_pci_dev(phba);
10406         if (shost)
10407                 scsi_host_put(shost);
10408 out_free_phba:
10409         lpfc_hba_free(phba);
10410         return error;
10411 }
10412
10413 /**
10414  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10415  * @pdev: pointer to PCI device
10416  *
10417  * This routine is called from the kernel's PCI subsystem to device with
10418  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10419  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10420  * device to be removed from the PCI subsystem properly.
10421  **/
10422 static void
10423 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10424 {
10425         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10426         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10427         struct lpfc_vport **vports;
10428         struct lpfc_hba *phba = vport->phba;
10429         int i;
10430
10431         /* Mark the device unloading flag */
10432         spin_lock_irq(&phba->hbalock);
10433         vport->load_flag |= FC_UNLOADING;
10434         spin_unlock_irq(&phba->hbalock);
10435
10436         /* Free the HBA sysfs attributes */
10437         lpfc_free_sysfs_attr(vport);
10438
10439         /* Release all the vports against this physical port */
10440         vports = lpfc_create_vport_work_array(phba);
10441         if (vports != NULL)
10442                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10443                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10444                                 continue;
10445                         fc_vport_terminate(vports[i]->fc_vport);
10446                 }
10447         lpfc_destroy_vport_work_array(phba, vports);
10448
10449         /* Remove FC host and then SCSI host with the physical port */
10450         fc_remove_host(shost);
10451         scsi_remove_host(shost);
10452
10453         /* Perform cleanup on the physical port */
10454         lpfc_cleanup(vport);
10455
10456         /*
10457          * Bring down the SLI Layer. This step disables all interrupts,
10458          * clears the rings, discards all mailbox commands, and resets
10459          * the HBA FCoE function.
10460          */
10461         lpfc_debugfs_terminate(vport);
10462         lpfc_sli4_hba_unset(phba);
10463
10464         spin_lock_irq(&phba->hbalock);
10465         list_del_init(&vport->listentry);
10466         spin_unlock_irq(&phba->hbalock);
10467
10468         /* Perform scsi free before driver resource_unset since scsi
10469          * buffers are released to their corresponding pools here.
10470          */
10471         lpfc_scsi_free(phba);
10472
10473         lpfc_sli4_driver_resource_unset(phba);
10474
10475         /* Unmap adapter Control and Doorbell registers */
10476         lpfc_sli4_pci_mem_unset(phba);
10477
10478         /* Release PCI resources and disable device's PCI function */
10479         scsi_host_put(shost);
10480         lpfc_disable_pci_dev(phba);
10481
10482         /* Finally, free the driver's device data structure */
10483         lpfc_hba_free(phba);
10484
10485         return;
10486 }
10487
10488 /**
10489  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10490  * @pdev: pointer to PCI device
10491  * @msg: power management message
10492  *
10493  * This routine is called from the kernel's PCI subsystem to support system
10494  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10495  * this method, it quiesces the device by stopping the driver's worker
10496  * thread for the device, turning off device's interrupt and DMA, and bring
10497  * the device offline. Note that as the driver implements the minimum PM
10498  * requirements to a power-aware driver's PM support for suspend/resume -- all
10499  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10500  * method call will be treated as SUSPEND and the driver will fully
10501  * reinitialize its device during resume() method call, the driver will set
10502  * device to PCI_D3hot state in PCI config space instead of setting it
10503  * according to the @msg provided by the PM.
10504  *
10505  * Return code
10506  *      0 - driver suspended the device
10507  *      Error otherwise
10508  **/
10509 static int
10510 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10511 {
10512         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10513         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10514
10515         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10516                         "2843 PCI device Power Management suspend.\n");
10517
10518         /* Bring down the device */
10519         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10520         lpfc_offline(phba);
10521         kthread_stop(phba->worker_thread);
10522
10523         /* Disable interrupt from device */
10524         lpfc_sli4_disable_intr(phba);
10525         lpfc_sli4_queue_destroy(phba);
10526
10527         /* Save device state to PCI config space */
10528         pci_save_state(pdev);
10529         pci_set_power_state(pdev, PCI_D3hot);
10530
10531         return 0;
10532 }
10533
10534 /**
10535  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10536  * @pdev: pointer to PCI device
10537  *
10538  * This routine is called from the kernel's PCI subsystem to support system
10539  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10540  * this method, it restores the device's PCI config space state and fully
10541  * reinitializes the device and brings it online. Note that as the driver
10542  * implements the minimum PM requirements to a power-aware driver's PM for
10543  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10544  * to the suspend() method call will be treated as SUSPEND and the driver
10545  * will fully reinitialize its device during resume() method call, the device
10546  * will be set to PCI_D0 directly in PCI config space before restoring the
10547  * state.
10548  *
10549  * Return code
10550  *      0 - driver suspended the device
10551  *      Error otherwise
10552  **/
10553 static int
10554 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10555 {
10556         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10557         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10558         uint32_t intr_mode;
10559         int error;
10560
10561         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10562                         "0292 PCI device Power Management resume.\n");
10563
10564         /* Restore device state from PCI config space */
10565         pci_set_power_state(pdev, PCI_D0);
10566         pci_restore_state(pdev);
10567
10568         /*
10569          * As the new kernel behavior of pci_restore_state() API call clears
10570          * device saved_state flag, need to save the restored state again.
10571          */
10572         pci_save_state(pdev);
10573
10574         if (pdev->is_busmaster)
10575                 pci_set_master(pdev);
10576
10577          /* Startup the kernel thread for this host adapter. */
10578         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10579                                         "lpfc_worker_%d", phba->brd_no);
10580         if (IS_ERR(phba->worker_thread)) {
10581                 error = PTR_ERR(phba->worker_thread);
10582                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10583                                 "0293 PM resume failed to start worker "
10584                                 "thread: error=x%x.\n", error);
10585                 return error;
10586         }
10587
10588         /* Configure and enable interrupt */
10589         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10590         if (intr_mode == LPFC_INTR_ERROR) {
10591                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10592                                 "0294 PM resume Failed to enable interrupt\n");
10593                 return -EIO;
10594         } else
10595                 phba->intr_mode = intr_mode;
10596
10597         /* Restart HBA and bring it online */
10598         lpfc_sli_brdrestart(phba);
10599         lpfc_online(phba);
10600
10601         /* Log the current active interrupt mode */
10602         lpfc_log_intr_mode(phba, phba->intr_mode);
10603
10604         return 0;
10605 }
10606
10607 /**
10608  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10609  * @phba: pointer to lpfc hba data structure.
10610  *
10611  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10612  * aborts all the outstanding SCSI I/Os to the pci device.
10613  **/
10614 static void
10615 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10616 {
10617         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10618                         "2828 PCI channel I/O abort preparing for recovery\n");
10619         /*
10620          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10621          * and let the SCSI mid-layer to retry them to recover.
10622          */
10623         lpfc_sli_abort_fcp_rings(phba);
10624 }
10625
10626 /**
10627  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10628  * @phba: pointer to lpfc hba data structure.
10629  *
10630  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10631  * disables the device interrupt and pci device, and aborts the internal FCP
10632  * pending I/Os.
10633  **/
10634 static void
10635 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10636 {
10637         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10638                         "2826 PCI channel disable preparing for reset\n");
10639
10640         /* Block any management I/Os to the device */
10641         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10642
10643         /* Block all SCSI devices' I/Os on the host */
10644         lpfc_scsi_dev_block(phba);
10645
10646         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10647         lpfc_sli_flush_fcp_rings(phba);
10648
10649         /* stop all timers */
10650         lpfc_stop_hba_timers(phba);
10651
10652         /* Disable interrupt and pci device */
10653         lpfc_sli4_disable_intr(phba);
10654         lpfc_sli4_queue_destroy(phba);
10655         pci_disable_device(phba->pcidev);
10656 }
10657
10658 /**
10659  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10660  * @phba: pointer to lpfc hba data structure.
10661  *
10662  * This routine is called to prepare the SLI4 device for PCI slot permanently
10663  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10664  * pending I/Os.
10665  **/
10666 static void
10667 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10668 {
10669         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10670                         "2827 PCI channel permanent disable for failure\n");
10671
10672         /* Block all SCSI devices' I/Os on the host */
10673         lpfc_scsi_dev_block(phba);
10674
10675         /* stop all timers */
10676         lpfc_stop_hba_timers(phba);
10677
10678         /* Clean up all driver's outstanding SCSI I/Os */
10679         lpfc_sli_flush_fcp_rings(phba);
10680 }
10681
10682 /**
10683  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10684  * @pdev: pointer to PCI device.
10685  * @state: the current PCI connection state.
10686  *
10687  * This routine is called from the PCI subsystem for error handling to device
10688  * with SLI-4 interface spec. This function is called by the PCI subsystem
10689  * after a PCI bus error affecting this device has been detected. When this
10690  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10691  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10692  * for the PCI subsystem to perform proper recovery as desired.
10693  *
10694  * Return codes
10695  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10696  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10697  **/
10698 static pci_ers_result_t
10699 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10700 {
10701         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10702         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10703
10704         switch (state) {
10705         case pci_channel_io_normal:
10706                 /* Non-fatal error, prepare for recovery */
10707                 lpfc_sli4_prep_dev_for_recover(phba);
10708                 return PCI_ERS_RESULT_CAN_RECOVER;
10709         case pci_channel_io_frozen:
10710                 /* Fatal error, prepare for slot reset */
10711                 lpfc_sli4_prep_dev_for_reset(phba);
10712                 return PCI_ERS_RESULT_NEED_RESET;
10713         case pci_channel_io_perm_failure:
10714                 /* Permanent failure, prepare for device down */
10715                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10716                 return PCI_ERS_RESULT_DISCONNECT;
10717         default:
10718                 /* Unknown state, prepare and request slot reset */
10719                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10720                                 "2825 Unknown PCI error state: x%x\n", state);
10721                 lpfc_sli4_prep_dev_for_reset(phba);
10722                 return PCI_ERS_RESULT_NEED_RESET;
10723         }
10724 }
10725
10726 /**
10727  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10728  * @pdev: pointer to PCI device.
10729  *
10730  * This routine is called from the PCI subsystem for error handling to device
10731  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10732  * restart the PCI card from scratch, as if from a cold-boot. During the
10733  * PCI subsystem error recovery, after the driver returns
10734  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10735  * recovery and then call this routine before calling the .resume method to
10736  * recover the device. This function will initialize the HBA device, enable
10737  * the interrupt, but it will just put the HBA to offline state without
10738  * passing any I/O traffic.
10739  *
10740  * Return codes
10741  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10742  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10743  */
10744 static pci_ers_result_t
10745 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10746 {
10747         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10748         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10749         struct lpfc_sli *psli = &phba->sli;
10750         uint32_t intr_mode;
10751
10752         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10753         if (pci_enable_device_mem(pdev)) {
10754                 printk(KERN_ERR "lpfc: Cannot re-enable "
10755                         "PCI device after reset.\n");
10756                 return PCI_ERS_RESULT_DISCONNECT;
10757         }
10758
10759         pci_restore_state(pdev);
10760
10761         /*
10762          * As the new kernel behavior of pci_restore_state() API call clears
10763          * device saved_state flag, need to save the restored state again.
10764          */
10765         pci_save_state(pdev);
10766
10767         if (pdev->is_busmaster)
10768                 pci_set_master(pdev);
10769
10770         spin_lock_irq(&phba->hbalock);
10771         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10772         spin_unlock_irq(&phba->hbalock);
10773
10774         /* Configure and enable interrupt */
10775         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10776         if (intr_mode == LPFC_INTR_ERROR) {
10777                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10778                                 "2824 Cannot re-enable interrupt after "
10779                                 "slot reset.\n");
10780                 return PCI_ERS_RESULT_DISCONNECT;
10781         } else
10782                 phba->intr_mode = intr_mode;
10783
10784         /* Log the current active interrupt mode */
10785         lpfc_log_intr_mode(phba, phba->intr_mode);
10786
10787         return PCI_ERS_RESULT_RECOVERED;
10788 }
10789
10790 /**
10791  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10792  * @pdev: pointer to PCI device
10793  *
10794  * This routine is called from the PCI subsystem for error handling to device
10795  * with SLI-4 interface spec. It is called when kernel error recovery tells
10796  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10797  * error recovery. After this call, traffic can start to flow from this device
10798  * again.
10799  **/
10800 static void
10801 lpfc_io_resume_s4(struct pci_dev *pdev)
10802 {
10803         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10804         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10805
10806         /*
10807          * In case of slot reset, as function reset is performed through
10808          * mailbox command which needs DMA to be enabled, this operation
10809          * has to be moved to the io resume phase. Taking device offline
10810          * will perform the necessary cleanup.
10811          */
10812         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10813                 /* Perform device reset */
10814                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10815                 lpfc_offline(phba);
10816                 lpfc_sli_brdrestart(phba);
10817                 /* Bring the device back online */
10818                 lpfc_online(phba);
10819         }
10820
10821         /* Clean up Advanced Error Reporting (AER) if needed */
10822         if (phba->hba_flag & HBA_AER_ENABLED)
10823                 pci_cleanup_aer_uncorrect_error_status(pdev);
10824 }
10825
10826 /**
10827  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10828  * @pdev: pointer to PCI device
10829  * @pid: pointer to PCI device identifier
10830  *
10831  * This routine is to be registered to the kernel's PCI subsystem. When an
10832  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10833  * at PCI device-specific information of the device and driver to see if the
10834  * driver state that it can support this kind of device. If the match is
10835  * successful, the driver core invokes this routine. This routine dispatches
10836  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10837  * do all the initialization that it needs to do to handle the HBA device
10838  * properly.
10839  *
10840  * Return code
10841  *      0 - driver can claim the device
10842  *      negative value - driver can not claim the device
10843  **/
10844 static int
10845 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10846 {
10847         int rc;
10848         struct lpfc_sli_intf intf;
10849
10850         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10851                 return -ENODEV;
10852
10853         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10854             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10855                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10856         else
10857                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10858
10859         return rc;
10860 }
10861
10862 /**
10863  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10864  * @pdev: pointer to PCI device
10865  *
10866  * This routine is to be registered to the kernel's PCI subsystem. When an
10867  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10868  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10869  * remove routine, which will perform all the necessary cleanup for the
10870  * device to be removed from the PCI subsystem properly.
10871  **/
10872 static void
10873 lpfc_pci_remove_one(struct pci_dev *pdev)
10874 {
10875         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10876         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10877
10878         switch (phba->pci_dev_grp) {
10879         case LPFC_PCI_DEV_LP:
10880                 lpfc_pci_remove_one_s3(pdev);
10881                 break;
10882         case LPFC_PCI_DEV_OC:
10883                 lpfc_pci_remove_one_s4(pdev);
10884                 break;
10885         default:
10886                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10887                                 "1424 Invalid PCI device group: 0x%x\n",
10888                                 phba->pci_dev_grp);
10889                 break;
10890         }
10891         return;
10892 }
10893
10894 /**
10895  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10896  * @pdev: pointer to PCI device
10897  * @msg: power management message
10898  *
10899  * This routine is to be registered to the kernel's PCI subsystem to support
10900  * system Power Management (PM). When PM invokes this method, it dispatches
10901  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10902  * suspend the device.
10903  *
10904  * Return code
10905  *      0 - driver suspended the device
10906  *      Error otherwise
10907  **/
10908 static int
10909 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10910 {
10911         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10912         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10913         int rc = -ENODEV;
10914
10915         switch (phba->pci_dev_grp) {
10916         case LPFC_PCI_DEV_LP:
10917                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10918                 break;
10919         case LPFC_PCI_DEV_OC:
10920                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10921                 break;
10922         default:
10923                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10924                                 "1425 Invalid PCI device group: 0x%x\n",
10925                                 phba->pci_dev_grp);
10926                 break;
10927         }
10928         return rc;
10929 }
10930
10931 /**
10932  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10933  * @pdev: pointer to PCI device
10934  *
10935  * This routine is to be registered to the kernel's PCI subsystem to support
10936  * system Power Management (PM). When PM invokes this method, it dispatches
10937  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10938  * resume the device.
10939  *
10940  * Return code
10941  *      0 - driver suspended the device
10942  *      Error otherwise
10943  **/
10944 static int
10945 lpfc_pci_resume_one(struct pci_dev *pdev)
10946 {
10947         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10948         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10949         int rc = -ENODEV;
10950
10951         switch (phba->pci_dev_grp) {
10952         case LPFC_PCI_DEV_LP:
10953                 rc = lpfc_pci_resume_one_s3(pdev);
10954                 break;
10955         case LPFC_PCI_DEV_OC:
10956                 rc = lpfc_pci_resume_one_s4(pdev);
10957                 break;
10958         default:
10959                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10960                                 "1426 Invalid PCI device group: 0x%x\n",
10961                                 phba->pci_dev_grp);
10962                 break;
10963         }
10964         return rc;
10965 }
10966
10967 /**
10968  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10969  * @pdev: pointer to PCI device.
10970  * @state: the current PCI connection state.
10971  *
10972  * This routine is registered to the PCI subsystem for error handling. This
10973  * function is called by the PCI subsystem after a PCI bus error affecting
10974  * this device has been detected. When this routine is invoked, it dispatches
10975  * the action to the proper SLI-3 or SLI-4 device error detected handling
10976  * routine, which will perform the proper error detected operation.
10977  *
10978  * Return codes
10979  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10980  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10981  **/
10982 static pci_ers_result_t
10983 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10984 {
10985         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10986         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10987         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10988
10989         switch (phba->pci_dev_grp) {
10990         case LPFC_PCI_DEV_LP:
10991                 rc = lpfc_io_error_detected_s3(pdev, state);
10992                 break;
10993         case LPFC_PCI_DEV_OC:
10994                 rc = lpfc_io_error_detected_s4(pdev, state);
10995                 break;
10996         default:
10997                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10998                                 "1427 Invalid PCI device group: 0x%x\n",
10999                                 phba->pci_dev_grp);
11000                 break;
11001         }
11002         return rc;
11003 }
11004
11005 /**
11006  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11007  * @pdev: pointer to PCI device.
11008  *
11009  * This routine is registered to the PCI subsystem for error handling. This
11010  * function is called after PCI bus has been reset to restart the PCI card
11011  * from scratch, as if from a cold-boot. When this routine is invoked, it
11012  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11013  * routine, which will perform the proper device reset.
11014  *
11015  * Return codes
11016  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11017  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11018  **/
11019 static pci_ers_result_t
11020 lpfc_io_slot_reset(struct pci_dev *pdev)
11021 {
11022         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11023         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11024         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11025
11026         switch (phba->pci_dev_grp) {
11027         case LPFC_PCI_DEV_LP:
11028                 rc = lpfc_io_slot_reset_s3(pdev);
11029                 break;
11030         case LPFC_PCI_DEV_OC:
11031                 rc = lpfc_io_slot_reset_s4(pdev);
11032                 break;
11033         default:
11034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11035                                 "1428 Invalid PCI device group: 0x%x\n",
11036                                 phba->pci_dev_grp);
11037                 break;
11038         }
11039         return rc;
11040 }
11041
11042 /**
11043  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11044  * @pdev: pointer to PCI device
11045  *
11046  * This routine is registered to the PCI subsystem for error handling. It
11047  * is called when kernel error recovery tells the lpfc driver that it is
11048  * OK to resume normal PCI operation after PCI bus error recovery. When
11049  * this routine is invoked, it dispatches the action to the proper SLI-3
11050  * or SLI-4 device io_resume routine, which will resume the device operation.
11051  **/
11052 static void
11053 lpfc_io_resume(struct pci_dev *pdev)
11054 {
11055         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11056         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11057
11058         switch (phba->pci_dev_grp) {
11059         case LPFC_PCI_DEV_LP:
11060                 lpfc_io_resume_s3(pdev);
11061                 break;
11062         case LPFC_PCI_DEV_OC:
11063                 lpfc_io_resume_s4(pdev);
11064                 break;
11065         default:
11066                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11067                                 "1429 Invalid PCI device group: 0x%x\n",
11068                                 phba->pci_dev_grp);
11069                 break;
11070         }
11071         return;
11072 }
11073
11074 /**
11075  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11076  * @phba: pointer to lpfc hba data structure.
11077  *
11078  * This routine checks to see if OAS is supported for this adapter. If
11079  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11080  * the enable oas flag is cleared and the pool created for OAS device data
11081  * is destroyed.
11082  *
11083  **/
11084 void
11085 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11086 {
11087
11088         if (!phba->cfg_EnableXLane)
11089                 return;
11090
11091         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11092                 phba->cfg_fof = 1;
11093         } else {
11094                 phba->cfg_fof = 0;
11095                 if (phba->device_data_mem_pool)
11096                         mempool_destroy(phba->device_data_mem_pool);
11097                 phba->device_data_mem_pool = NULL;
11098         }
11099
11100         return;
11101 }
11102
11103 /**
11104  * lpfc_fof_queue_setup - Set up all the fof queues
11105  * @phba: pointer to lpfc hba data structure.
11106  *
11107  * This routine is invoked to set up all the fof queues for the FC HBA
11108  * operation.
11109  *
11110  * Return codes
11111  *      0 - successful
11112  *      -ENOMEM - No available memory
11113  **/
11114 int
11115 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11116 {
11117         struct lpfc_sli *psli = &phba->sli;
11118         int rc;
11119
11120         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11121         if (rc)
11122                 return -ENOMEM;
11123
11124         if (phba->cfg_fof) {
11125
11126                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11127                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11128                 if (rc)
11129                         goto out_oas_cq;
11130
11131                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11132                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11133                 if (rc)
11134                         goto out_oas_wq;
11135
11136                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11137                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11138         }
11139
11140         return 0;
11141
11142 out_oas_wq:
11143         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11144 out_oas_cq:
11145         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11146         return rc;
11147
11148 }
11149
11150 /**
11151  * lpfc_fof_queue_create - Create all the fof queues
11152  * @phba: pointer to lpfc hba data structure.
11153  *
11154  * This routine is invoked to allocate all the fof queues for the FC HBA
11155  * operation. For each SLI4 queue type, the parameters such as queue entry
11156  * count (queue depth) shall be taken from the module parameter. For now,
11157  * we just use some constant number as place holder.
11158  *
11159  * Return codes
11160  *      0 - successful
11161  *      -ENOMEM - No availble memory
11162  *      -EIO - The mailbox failed to complete successfully.
11163  **/
11164 int
11165 lpfc_fof_queue_create(struct lpfc_hba *phba)
11166 {
11167         struct lpfc_queue *qdesc;
11168
11169         /* Create FOF EQ */
11170         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11171                                       phba->sli4_hba.eq_ecount);
11172         if (!qdesc)
11173                 goto out_error;
11174
11175         phba->sli4_hba.fof_eq = qdesc;
11176
11177         if (phba->cfg_fof) {
11178
11179                 /* Create OAS CQ */
11180                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11181                                                       phba->sli4_hba.cq_ecount);
11182                 if (!qdesc)
11183                         goto out_error;
11184
11185                 phba->sli4_hba.oas_cq = qdesc;
11186
11187                 /* Create OAS WQ */
11188                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11189                                               phba->sli4_hba.wq_ecount);
11190                 if (!qdesc)
11191                         goto out_error;
11192
11193                 phba->sli4_hba.oas_wq = qdesc;
11194
11195         }
11196         return 0;
11197
11198 out_error:
11199         lpfc_fof_queue_destroy(phba);
11200         return -ENOMEM;
11201 }
11202
11203 /**
11204  * lpfc_fof_queue_destroy - Destroy all the fof queues
11205  * @phba: pointer to lpfc hba data structure.
11206  *
11207  * This routine is invoked to release all the SLI4 queues with the FC HBA
11208  * operation.
11209  *
11210  * Return codes
11211  *      0 - successful
11212  **/
11213 int
11214 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11215 {
11216         /* Release FOF Event queue */
11217         if (phba->sli4_hba.fof_eq != NULL) {
11218                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11219                 phba->sli4_hba.fof_eq = NULL;
11220         }
11221
11222         /* Release OAS Completion queue */
11223         if (phba->sli4_hba.oas_cq != NULL) {
11224                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11225                 phba->sli4_hba.oas_cq = NULL;
11226         }
11227
11228         /* Release OAS Work queue */
11229         if (phba->sli4_hba.oas_wq != NULL) {
11230                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11231                 phba->sli4_hba.oas_wq = NULL;
11232         }
11233         return 0;
11234 }
11235
11236 static struct pci_device_id lpfc_id_table[] = {
11237         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11238                 PCI_ANY_ID, PCI_ANY_ID, },
11239         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11240                 PCI_ANY_ID, PCI_ANY_ID, },
11241         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11242                 PCI_ANY_ID, PCI_ANY_ID, },
11243         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11244                 PCI_ANY_ID, PCI_ANY_ID, },
11245         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11246                 PCI_ANY_ID, PCI_ANY_ID, },
11247         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11248                 PCI_ANY_ID, PCI_ANY_ID, },
11249         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11250                 PCI_ANY_ID, PCI_ANY_ID, },
11251         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11252                 PCI_ANY_ID, PCI_ANY_ID, },
11253         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11254                 PCI_ANY_ID, PCI_ANY_ID, },
11255         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11256                 PCI_ANY_ID, PCI_ANY_ID, },
11257         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11258                 PCI_ANY_ID, PCI_ANY_ID, },
11259         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11260                 PCI_ANY_ID, PCI_ANY_ID, },
11261         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11262                 PCI_ANY_ID, PCI_ANY_ID, },
11263         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11264                 PCI_ANY_ID, PCI_ANY_ID, },
11265         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11266                 PCI_ANY_ID, PCI_ANY_ID, },
11267         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11268                 PCI_ANY_ID, PCI_ANY_ID, },
11269         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11270                 PCI_ANY_ID, PCI_ANY_ID, },
11271         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11272                 PCI_ANY_ID, PCI_ANY_ID, },
11273         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11274                 PCI_ANY_ID, PCI_ANY_ID, },
11275         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11276                 PCI_ANY_ID, PCI_ANY_ID, },
11277         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11278                 PCI_ANY_ID, PCI_ANY_ID, },
11279         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11280                 PCI_ANY_ID, PCI_ANY_ID, },
11281         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11282                 PCI_ANY_ID, PCI_ANY_ID, },
11283         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11284                 PCI_ANY_ID, PCI_ANY_ID, },
11285         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11286                 PCI_ANY_ID, PCI_ANY_ID, },
11287         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11288                 PCI_ANY_ID, PCI_ANY_ID, },
11289         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11290                 PCI_ANY_ID, PCI_ANY_ID, },
11291         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11292                 PCI_ANY_ID, PCI_ANY_ID, },
11293         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11294                 PCI_ANY_ID, PCI_ANY_ID, },
11295         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11296                 PCI_ANY_ID, PCI_ANY_ID, },
11297         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11298                 PCI_ANY_ID, PCI_ANY_ID, },
11299         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11300                 PCI_ANY_ID, PCI_ANY_ID, },
11301         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11302                 PCI_ANY_ID, PCI_ANY_ID, },
11303         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11304                 PCI_ANY_ID, PCI_ANY_ID, },
11305         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11306                 PCI_ANY_ID, PCI_ANY_ID, },
11307         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11308                 PCI_ANY_ID, PCI_ANY_ID, },
11309         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11310                 PCI_ANY_ID, PCI_ANY_ID, },
11311         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11312                 PCI_ANY_ID, PCI_ANY_ID, },
11313         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11314                 PCI_ANY_ID, PCI_ANY_ID, },
11315         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11316                 PCI_ANY_ID, PCI_ANY_ID, },
11317         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11318                 PCI_ANY_ID, PCI_ANY_ID, },
11319         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11320                 PCI_ANY_ID, PCI_ANY_ID, },
11321         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11322                 PCI_ANY_ID, PCI_ANY_ID, },
11323         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11324                 PCI_ANY_ID, PCI_ANY_ID, },
11325         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11326                 PCI_ANY_ID, PCI_ANY_ID, },
11327         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11328                 PCI_ANY_ID, PCI_ANY_ID, },
11329         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11330                 PCI_ANY_ID, PCI_ANY_ID, },
11331         { 0 }
11332 };
11333
11334 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11335
11336 static const struct pci_error_handlers lpfc_err_handler = {
11337         .error_detected = lpfc_io_error_detected,
11338         .slot_reset = lpfc_io_slot_reset,
11339         .resume = lpfc_io_resume,
11340 };
11341
11342 static struct pci_driver lpfc_driver = {
11343         .name           = LPFC_DRIVER_NAME,
11344         .id_table       = lpfc_id_table,
11345         .probe          = lpfc_pci_probe_one,
11346         .remove         = lpfc_pci_remove_one,
11347         .suspend        = lpfc_pci_suspend_one,
11348         .resume         = lpfc_pci_resume_one,
11349         .err_handler    = &lpfc_err_handler,
11350 };
11351
11352 static const struct file_operations lpfc_mgmt_fop = {
11353         .owner = THIS_MODULE,
11354 };
11355
11356 static struct miscdevice lpfc_mgmt_dev = {
11357         .minor = MISC_DYNAMIC_MINOR,
11358         .name = "lpfcmgmt",
11359         .fops = &lpfc_mgmt_fop,
11360 };
11361
11362 /**
11363  * lpfc_init - lpfc module initialization routine
11364  *
11365  * This routine is to be invoked when the lpfc module is loaded into the
11366  * kernel. The special kernel macro module_init() is used to indicate the
11367  * role of this routine to the kernel as lpfc module entry point.
11368  *
11369  * Return codes
11370  *   0 - successful
11371  *   -ENOMEM - FC attach transport failed
11372  *   all others - failed
11373  */
11374 static int __init
11375 lpfc_init(void)
11376 {
11377         int cpu;
11378         int error = 0;
11379
11380         printk(LPFC_MODULE_DESC "\n");
11381         printk(LPFC_COPYRIGHT "\n");
11382
11383         error = misc_register(&lpfc_mgmt_dev);
11384         if (error)
11385                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11386                         "misc_register returned with status %d", error);
11387
11388         if (lpfc_enable_npiv) {
11389                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11390                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11391         }
11392         lpfc_transport_template =
11393                                 fc_attach_transport(&lpfc_transport_functions);
11394         if (lpfc_transport_template == NULL)
11395                 return -ENOMEM;
11396         if (lpfc_enable_npiv) {
11397                 lpfc_vport_transport_template =
11398                         fc_attach_transport(&lpfc_vport_transport_functions);
11399                 if (lpfc_vport_transport_template == NULL) {
11400                         fc_release_transport(lpfc_transport_template);
11401                         return -ENOMEM;
11402                 }
11403         }
11404
11405         /* Initialize in case vector mapping is needed */
11406         lpfc_used_cpu = NULL;
11407         lpfc_present_cpu = 0;
11408         for_each_present_cpu(cpu)
11409                 lpfc_present_cpu++;
11410
11411         error = pci_register_driver(&lpfc_driver);
11412         if (error) {
11413                 fc_release_transport(lpfc_transport_template);
11414                 if (lpfc_enable_npiv)
11415                         fc_release_transport(lpfc_vport_transport_template);
11416         }
11417
11418         return error;
11419 }
11420
11421 /**
11422  * lpfc_exit - lpfc module removal routine
11423  *
11424  * This routine is invoked when the lpfc module is removed from the kernel.
11425  * The special kernel macro module_exit() is used to indicate the role of
11426  * this routine to the kernel as lpfc module exit point.
11427  */
11428 static void __exit
11429 lpfc_exit(void)
11430 {
11431         misc_deregister(&lpfc_mgmt_dev);
11432         pci_unregister_driver(&lpfc_driver);
11433         fc_release_transport(lpfc_transport_template);
11434         if (lpfc_enable_npiv)
11435                 fc_release_transport(lpfc_vport_transport_template);
11436         if (_dump_buf_data) {
11437                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11438                                 "_dump_buf_data at 0x%p\n",
11439                                 (1L << _dump_buf_data_order), _dump_buf_data);
11440                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11441         }
11442
11443         if (_dump_buf_dif) {
11444                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11445                                 "_dump_buf_dif at 0x%p\n",
11446                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11447                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11448         }
11449         kfree(lpfc_used_cpu);
11450 }
11451
11452 module_init(lpfc_init);
11453 module_exit(lpfc_exit);
11454 MODULE_LICENSE("GPL");
11455 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11456 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11457 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);