kernel/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) 2004-2015 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             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 704              !(phba->lmt & LMT_32Gb))) {
 705                 /* Reset link speed to auto */
 706                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 707                         "1302 Invalid speed for this board:%d "
 708                         "Reset link speed to auto.\n",
 709                         phba->cfg_link_speed);
 710                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 711         }
 712         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 713         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 714         if (phba->sli_rev < LPFC_SLI_REV4)
 715                 lpfc_set_loopback_flag(phba);
 716         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 717         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 718                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 719                         "0498 Adapter failed to init, mbxCmd x%x "
 720                         "INIT_LINK, mbxStatus x%x\n",
 721                         mb->mbxCommand, mb->mbxStatus);
 722                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 723                         /* Clear all interrupt enable conditions */
 724                         writel(0, phba->HCregaddr);
 725                         readl(phba->HCregaddr); /* flush */
 726                         /* Clear all pending interrupts */
 727                         writel(0xffffffff, phba->HAregaddr);
 728                         readl(phba->HAregaddr); /* flush */
 729                 }
 730                 phba->link_state = LPFC_HBA_ERROR;
 731                 if (rc != MBX_BUSY || flag == MBX_POLL)
 732                         mempool_free(pmb, phba->mbox_mem_pool);
 733                 return -EIO;
 734         }
 735         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 736         if (flag == MBX_POLL)
 737                 mempool_free(pmb, phba->mbox_mem_pool);
 738
 739         return 0;
 740 }
 741
 742 /**
 743  * lpfc_hba_down_link - this routine downs the FC link
 744  * @phba: pointer to lpfc hba data structure.
 745  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 746  *
 747  * This routine will issue the DOWN_LINK mailbox command call.
 748  * It is available to other drivers through the lpfc_hba data
 749  * structure for use to stop the link.
 750  *
 751  * Return code
 752  *              0 - success
 753  *              Any other value - error
 754  **/
 755 static int
 756 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 757 {
 758         LPFC_MBOXQ_t *pmb;
 759         int rc;
 760
 761         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 762         if (!pmb) {
 763                 phba->link_state = LPFC_HBA_ERROR;
 764                 return -ENOMEM;
 765         }
 766
 767         lpfc_printf_log(phba,
 768                 KERN_ERR, LOG_INIT,
 769                 "0491 Adapter Link is disabled.\n");
 770         lpfc_down_link(phba, pmb);
 771         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 772         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 773         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 774                 lpfc_printf_log(phba,
 775                 KERN_ERR, LOG_INIT,
 776                 "2522 Adapter failed to issue DOWN_LINK"
 777                 " mbox command rc 0x%x\n", rc);
 778
 779                 mempool_free(pmb, phba->mbox_mem_pool);
 780                 return -EIO;
 781         }
 782         if (flag == MBX_POLL)
 783                 mempool_free(pmb, phba->mbox_mem_pool);
 784
 785         return 0;
 786 }
 787
 788 /**
 789  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 790  * @phba: pointer to lpfc HBA data structure.
 791  *
 792  * This routine will do LPFC uninitialization before the HBA is reset when
 793  * bringing down the SLI Layer.
 794  *
 795  * Return codes
 796  *   0 - success.
 797  *   Any other value - error.
 798  **/
 799 int
 800 lpfc_hba_down_prep(struct lpfc_hba *phba)
 801 {
 802         struct lpfc_vport **vports;
 803         int i;
 804
 805         if (phba->sli_rev <= LPFC_SLI_REV3) {
 806                 /* Disable interrupts */
 807                 writel(0, phba->HCregaddr);
 808                 readl(phba->HCregaddr); /* flush */
 809         }
 810
 811         if (phba->pport->load_flag & FC_UNLOADING)
 812                 lpfc_cleanup_discovery_resources(phba->pport);
 813         else {
 814                 vports = lpfc_create_vport_work_array(phba);
 815                 if (vports != NULL)
 816                         for (i = 0; i <= phba->max_vports &&
 817                                 vports[i] != NULL; i++)
 818                                 lpfc_cleanup_discovery_resources(vports[i]);
 819                 lpfc_destroy_vport_work_array(phba, vports);
 820         }
 821         return 0;
 822 }
 823
 824 /**
 825  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 826  * rspiocb which got deferred
 827  *
 828  * @phba: pointer to lpfc HBA data structure.
 829  *
 830  * This routine will cleanup completed slow path events after HBA is reset
 831  * when bringing down the SLI Layer.
 832  *
 833  *
 834  * Return codes
 835  *   void.
 836  **/
 837 static void
 838 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 839 {
 840         struct lpfc_iocbq *rspiocbq;
 841         struct hbq_dmabuf *dmabuf;
 842         struct lpfc_cq_event *cq_event;
 843
 844         spin_lock_irq(&phba->hbalock);
 845         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 846         spin_unlock_irq(&phba->hbalock);
 847
 848         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 849                 /* Get the response iocb from the head of work queue */
 850                 spin_lock_irq(&phba->hbalock);
 851                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 852                                  cq_event, struct lpfc_cq_event, list);
 853                 spin_unlock_irq(&phba->hbalock);
 854
 855                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 856                 case CQE_CODE_COMPL_WQE:
 857                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 858                                                  cq_event);
 859                         lpfc_sli_release_iocbq(phba, rspiocbq);
 860                         break;
 861                 case CQE_CODE_RECEIVE:
 862                 case CQE_CODE_RECEIVE_V1:
 863                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 864                                               cq_event);
 865                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 866                 }
 867         }
 868 }
 869
 870 /**
 871  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 872  * @phba: pointer to lpfc HBA data structure.
 873  *
 874  * This routine will cleanup posted ELS buffers after the HBA is reset
 875  * when bringing down the SLI Layer.
 876  *
 877  *
 878  * Return codes
 879  *   void.
 880  **/
 881 static void
 882 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 883 {
 884         struct lpfc_sli *psli = &phba->sli;
 885         struct lpfc_sli_ring *pring;
 886         struct lpfc_dmabuf *mp, *next_mp;
 887         LIST_HEAD(buflist);
 888         int count;
 889
 890         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 891                 lpfc_sli_hbqbuf_free_all(phba);
 892         else {
 893                 /* Cleanup preposted buffers on the ELS ring */
 894                 pring = &psli->ring[LPFC_ELS_RING];
 895                 spin_lock_irq(&phba->hbalock);
 896                 list_splice_init(&pring->postbufq, &buflist);
 897                 spin_unlock_irq(&phba->hbalock);
 898
 899                 count = 0;
 900                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 901                         list_del(&mp->list);
 902                         count++;
 903                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 904                         kfree(mp);
 905                 }
 906
 907                 spin_lock_irq(&phba->hbalock);
 908                 pring->postbufq_cnt -= count;
 909                 spin_unlock_irq(&phba->hbalock);
 910         }
 911 }
 912
 913 /**
 914  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 915  * @phba: pointer to lpfc HBA data structure.
 916  *
 917  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 918  * down the SLI Layer.
 919  *
 920  * Return codes
 921  *   void
 922  **/
 923 static void
 924 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 925 {
 926         struct lpfc_sli *psli = &phba->sli;
 927         struct lpfc_sli_ring *pring;
 928         LIST_HEAD(completions);
 929         int i;
 930
 931         for (i = 0; i < psli->num_rings; i++) {
 932                 pring = &psli->ring[i];
 933                 if (phba->sli_rev >= LPFC_SLI_REV4)
 934                         spin_lock_irq(&pring->ring_lock);
 935                 else
 936                         spin_lock_irq(&phba->hbalock);
 937                 /* At this point in time the HBA is either reset or DOA. Either
 938                  * way, nothing should be on txcmplq as it will NEVER complete.
 939                  */
 940                 list_splice_init(&pring->txcmplq, &completions);
 941                 pring->txcmplq_cnt = 0;
 942
 943                 if (phba->sli_rev >= LPFC_SLI_REV4)
 944                         spin_unlock_irq(&pring->ring_lock);
 945                 else
 946                         spin_unlock_irq(&phba->hbalock);
 947
 948                 /* Cancel all the IOCBs from the completions list */
 949                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 950                                       IOERR_SLI_ABORTED);
 951                 lpfc_sli_abort_iocb_ring(phba, pring);
 952         }
 953 }
 954
 955 /**
 956  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 957         int i;
 958  * @phba: pointer to lpfc HBA data structure.
 959  *
 960  * This routine will do uninitialization after the HBA is reset when bring
 961  * down the SLI Layer.
 962  *
 963  * Return codes
 964  *   0 - success.
 965  *   Any other value - error.
 966  **/
 967 static int
 968 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 969 {
 970         lpfc_hba_free_post_buf(phba);
 971         lpfc_hba_clean_txcmplq(phba);
 972         return 0;
 973 }
 974
 975 /**
 976  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 977  * @phba: pointer to lpfc HBA data structure.
 978  *
 979  * This routine will do uninitialization after the HBA is reset when bring
 980  * down the SLI Layer.
 981  *
 982  * Return codes
 983  *   0 - success.
 984  *   Any other value - error.
 985  **/
 986 static int
 987 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 988 {
 989         struct lpfc_scsi_buf *psb, *psb_next;
 990         LIST_HEAD(aborts);
 991         unsigned long iflag = 0;
 992         struct lpfc_sglq *sglq_entry = NULL;
 993         struct lpfc_sli *psli = &phba->sli;
 994         struct lpfc_sli_ring *pring;
 995
 996         lpfc_hba_free_post_buf(phba);
 997         lpfc_hba_clean_txcmplq(phba);
 998         pring = &psli->ring[LPFC_ELS_RING];
 999
1000         /* At this point in time the HBA is either reset or DOA. Either
1001          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1002          * on the lpfc_sgl_list so that it can either be freed if the
1003          * driver is unloading or reposted if the driver is restarting
1004          * the port.
1005          */
1006         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1007                                         /* scsl_buf_list */
1008         /* abts_sgl_list_lock required because worker thread uses this
1009          * list.
1010          */
1011         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1012         list_for_each_entry(sglq_entry,
1013                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1014                 sglq_entry->state = SGL_FREED;
1015
1016         spin_lock(&pring->ring_lock);
1017         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1018                         &phba->sli4_hba.lpfc_sgl_list);
1019         spin_unlock(&pring->ring_lock);
1020         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1021         /* abts_scsi_buf_list_lock required because worker thread uses this
1022          * list.
1023          */
1024         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1025         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1026                         &aborts);
1027         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1028         spin_unlock_irq(&phba->hbalock);
1029
1030         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1031                 psb->pCmd = NULL;
1032                 psb->status = IOSTAT_SUCCESS;
1033         }
1034         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1035         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1036         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1037
1038         lpfc_sli4_free_sp_events(phba);
1039         return 0;
1040 }
1041
1042 /**
1043  * lpfc_hba_down_post - Wrapper func for hba down post routine
1044  * @phba: pointer to lpfc HBA data structure.
1045  *
1046  * This routine wraps the actual SLI3 or SLI4 routine for performing
1047  * uninitialization after the HBA is reset when bring down the SLI Layer.
1048  *
1049  * Return codes
1050  *   0 - success.
1051  *   Any other value - error.
1052  **/
1053 int
1054 lpfc_hba_down_post(struct lpfc_hba *phba)
1055 {
1056         return (*phba->lpfc_hba_down_post)(phba);
1057 }
1058
1059 /**
1060  * lpfc_hb_timeout - The HBA-timer timeout handler
1061  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1062  *
1063  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1064  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1065  * work-port-events bitmap and the worker thread is notified. This timeout
1066  * event will be used by the worker thread to invoke the actual timeout
1067  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1068  * be performed in the timeout handler and the HBA timeout event bit shall
1069  * be cleared by the worker thread after it has taken the event bitmap out.
1070  **/
1071 static void
1072 lpfc_hb_timeout(unsigned long ptr)
1073 {
1074         struct lpfc_hba *phba;
1075         uint32_t tmo_posted;
1076         unsigned long iflag;
1077
1078         phba = (struct lpfc_hba *)ptr;
1079
1080         /* Check for heart beat timeout conditions */
1081         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1082         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1083         if (!tmo_posted)
1084                 phba->pport->work_port_events |= WORKER_HB_TMO;
1085         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1086
1087         /* Tell the worker thread there is work to do */
1088         if (!tmo_posted)
1089                 lpfc_worker_wake_up(phba);
1090         return;
1091 }
1092
1093 /**
1094  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1095  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1096  *
1097  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1098  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1099  * work-port-events bitmap and the worker thread is notified. This timeout
1100  * event will be used by the worker thread to invoke the actual timeout
1101  * handler routine, lpfc_rrq_handler. Any periodical operations will
1102  * be performed in the timeout handler and the RRQ timeout event bit shall
1103  * be cleared by the worker thread after it has taken the event bitmap out.
1104  **/
1105 static void
1106 lpfc_rrq_timeout(unsigned long ptr)
1107 {
1108         struct lpfc_hba *phba;
1109         unsigned long iflag;
1110
1111         phba = (struct lpfc_hba *)ptr;
1112         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1113         if (!(phba->pport->load_flag & FC_UNLOADING))
1114                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1115         else
1116                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1117         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1118
1119         if (!(phba->pport->load_flag & FC_UNLOADING))
1120                 lpfc_worker_wake_up(phba);
1121 }
1122
1123 /**
1124  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1125  * @phba: pointer to lpfc hba data structure.
1126  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1127  *
1128  * This is the callback function to the lpfc heart-beat mailbox command.
1129  * If configured, the lpfc driver issues the heart-beat mailbox command to
1130  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1131  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1132  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1133  * heart-beat outstanding state. Once the mailbox command comes back and
1134  * no error conditions detected, the heart-beat mailbox command timer is
1135  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1136  * state is cleared for the next heart-beat. If the timer expired with the
1137  * heart-beat outstanding state set, the driver will put the HBA offline.
1138  **/
1139 static void
1140 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1141 {
1142         unsigned long drvr_flag;
1143
1144         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1145         phba->hb_outstanding = 0;
1146         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1147
1148         /* Check and reset heart-beat timer is necessary */
1149         mempool_free(pmboxq, phba->mbox_mem_pool);
1150         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1151                 !(phba->link_state == LPFC_HBA_ERROR) &&
1152                 !(phba->pport->load_flag & FC_UNLOADING))
1153                 mod_timer(&phba->hb_tmofunc,
1154                           jiffies +
1155                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1156         return;
1157 }
1158
1159 /**
1160  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This is the actual HBA-timer timeout handler to be invoked by the worker
1164  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1165  * handler performs any periodic operations needed for the device. If such
1166  * periodic event has already been attended to either in the interrupt handler
1167  * or by processing slow-ring or fast-ring events within the HBA-timer
1168  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1169  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1170  * is configured and there is no heart-beat mailbox command outstanding, a
1171  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1172  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1173  * to offline.
1174  **/
1175 void
1176 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1177 {
1178         struct lpfc_vport **vports;
1179         LPFC_MBOXQ_t *pmboxq;
1180         struct lpfc_dmabuf *buf_ptr;
1181         int retval, i;
1182         struct lpfc_sli *psli = &phba->sli;
1183         LIST_HEAD(completions);
1184
1185         vports = lpfc_create_vport_work_array(phba);
1186         if (vports != NULL)
1187                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1188                         lpfc_rcv_seq_check_edtov(vports[i]);
1189         lpfc_destroy_vport_work_array(phba, vports);
1190
1191         if ((phba->link_state == LPFC_HBA_ERROR) ||
1192                 (phba->pport->load_flag & FC_UNLOADING) ||
1193                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1194                 return;
1195
1196         spin_lock_irq(&phba->pport->work_port_lock);
1197
1198         if (time_after(phba->last_completion_time +
1199                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1200                         jiffies)) {
1201                 spin_unlock_irq(&phba->pport->work_port_lock);
1202                 if (!phba->hb_outstanding)
1203                         mod_timer(&phba->hb_tmofunc,
1204                                 jiffies +
1205                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1206                 else
1207                         mod_timer(&phba->hb_tmofunc,
1208                                 jiffies +
1209                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1210                 return;
1211         }
1212         spin_unlock_irq(&phba->pport->work_port_lock);
1213
1214         if (phba->elsbuf_cnt &&
1215                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1216                 spin_lock_irq(&phba->hbalock);
1217                 list_splice_init(&phba->elsbuf, &completions);
1218                 phba->elsbuf_cnt = 0;
1219                 phba->elsbuf_prev_cnt = 0;
1220                 spin_unlock_irq(&phba->hbalock);
1221
1222                 while (!list_empty(&completions)) {
1223                         list_remove_head(&completions, buf_ptr,
1224                                 struct lpfc_dmabuf, list);
1225                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1226                         kfree(buf_ptr);
1227                 }
1228         }
1229         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1230
1231         /* If there is no heart beat outstanding, issue a heartbeat command */
1232         if (phba->cfg_enable_hba_heartbeat) {
1233                 if (!phba->hb_outstanding) {
1234                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1235                                 (list_empty(&psli->mboxq))) {
1236                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1237                                                         GFP_KERNEL);
1238                                 if (!pmboxq) {
1239                                         mod_timer(&phba->hb_tmofunc,
1240                                                  jiffies +
1241                                                  msecs_to_jiffies(1000 *
1242                                                  LPFC_HB_MBOX_INTERVAL));
1243                                         return;
1244                                 }
1245
1246                                 lpfc_heart_beat(phba, pmboxq);
1247                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1248                                 pmboxq->vport = phba->pport;
1249                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1250                                                 MBX_NOWAIT);
1251
1252                                 if (retval != MBX_BUSY &&
1253                                         retval != MBX_SUCCESS) {
1254                                         mempool_free(pmboxq,
1255                                                         phba->mbox_mem_pool);
1256                                         mod_timer(&phba->hb_tmofunc,
1257                                                 jiffies +
1258                                                 msecs_to_jiffies(1000 *
1259                                                 LPFC_HB_MBOX_INTERVAL));
1260                                         return;
1261                                 }
1262                                 phba->skipped_hb = 0;
1263                                 phba->hb_outstanding = 1;
1264                         } else if (time_before_eq(phba->last_completion_time,
1265                                         phba->skipped_hb)) {
1266                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1267                                         "2857 Last completion time not "
1268                                         " updated in %d ms\n",
1269                                         jiffies_to_msecs(jiffies
1270                                                  - phba->last_completion_time));
1271                         } else
1272                                 phba->skipped_hb = jiffies;
1273
1274                         mod_timer(&phba->hb_tmofunc,
1275                                  jiffies +
1276                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1277                         return;
1278                 } else {
1279                         /*
1280                         * If heart beat timeout called with hb_outstanding set
1281                         * we need to give the hb mailbox cmd a chance to
1282                         * complete or TMO.
1283                         */
1284                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1285                                         "0459 Adapter heartbeat still out"
1286                                         "standing:last compl time was %d ms.\n",
1287                                         jiffies_to_msecs(jiffies
1288                                                  - phba->last_completion_time));
1289                         mod_timer(&phba->hb_tmofunc,
1290                                 jiffies +
1291                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1292                 }
1293         }
1294 }
1295
1296 /**
1297  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1298  * @phba: pointer to lpfc hba data structure.
1299  *
1300  * This routine is called to bring the HBA offline when HBA hardware error
1301  * other than Port Error 6 has been detected.
1302  **/
1303 static void
1304 lpfc_offline_eratt(struct lpfc_hba *phba)
1305 {
1306         struct lpfc_sli   *psli = &phba->sli;
1307
1308         spin_lock_irq(&phba->hbalock);
1309         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1310         spin_unlock_irq(&phba->hbalock);
1311         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1312
1313         lpfc_offline(phba);
1314         lpfc_reset_barrier(phba);
1315         spin_lock_irq(&phba->hbalock);
1316         lpfc_sli_brdreset(phba);
1317         spin_unlock_irq(&phba->hbalock);
1318         lpfc_hba_down_post(phba);
1319         lpfc_sli_brdready(phba, HS_MBRDY);
1320         lpfc_unblock_mgmt_io(phba);
1321         phba->link_state = LPFC_HBA_ERROR;
1322         return;
1323 }
1324
1325 /**
1326  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1327  * @phba: pointer to lpfc hba data structure.
1328  *
1329  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1330  * other than Port Error 6 has been detected.
1331  **/
1332 void
1333 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1334 {
1335         spin_lock_irq(&phba->hbalock);
1336         phba->link_state = LPFC_HBA_ERROR;
1337         spin_unlock_irq(&phba->hbalock);
1338
1339         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1340         lpfc_offline(phba);
1341         lpfc_hba_down_post(phba);
1342         lpfc_unblock_mgmt_io(phba);
1343 }
1344
1345 /**
1346  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1347  * @phba: pointer to lpfc hba data structure.
1348  *
1349  * This routine is invoked to handle the deferred HBA hardware error
1350  * conditions. This type of error is indicated by HBA by setting ER1
1351  * and another ER bit in the host status register. The driver will
1352  * wait until the ER1 bit clears before handling the error condition.
1353  **/
1354 static void
1355 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1356 {
1357         uint32_t old_host_status = phba->work_hs;
1358         struct lpfc_sli *psli = &phba->sli;
1359
1360         /* If the pci channel is offline, ignore possible errors,
1361          * since we cannot communicate with the pci card anyway.
1362          */
1363         if (pci_channel_offline(phba->pcidev)) {
1364                 spin_lock_irq(&phba->hbalock);
1365                 phba->hba_flag &= ~DEFER_ERATT;
1366                 spin_unlock_irq(&phba->hbalock);
1367                 return;
1368         }
1369
1370         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1371                 "0479 Deferred Adapter Hardware Error "
1372                 "Data: x%x x%x x%x\n",
1373                 phba->work_hs,
1374                 phba->work_status[0], phba->work_status[1]);
1375
1376         spin_lock_irq(&phba->hbalock);
1377         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1378         spin_unlock_irq(&phba->hbalock);
1379
1380
1381         /*
1382          * Firmware stops when it triggred erratt. That could cause the I/Os
1383          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1384          * SCSI layer retry it after re-establishing link.
1385          */
1386         lpfc_sli_abort_fcp_rings(phba);
1387
1388         /*
1389          * There was a firmware error. Take the hba offline and then
1390          * attempt to restart it.
1391          */
1392         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1393         lpfc_offline(phba);
1394
1395         /* Wait for the ER1 bit to clear.*/
1396         while (phba->work_hs & HS_FFER1) {
1397                 msleep(100);
1398                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1399                         phba->work_hs = UNPLUG_ERR ;
1400                         break;
1401                 }
1402                 /* If driver is unloading let the worker thread continue */
1403                 if (phba->pport->load_flag & FC_UNLOADING) {
1404                         phba->work_hs = 0;
1405                         break;
1406                 }
1407         }
1408
1409         /*
1410          * This is to ptrotect against a race condition in which
1411          * first write to the host attention register clear the
1412          * host status register.
1413          */
1414         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1415                 phba->work_hs = old_host_status & ~HS_FFER1;
1416
1417         spin_lock_irq(&phba->hbalock);
1418         phba->hba_flag &= ~DEFER_ERATT;
1419         spin_unlock_irq(&phba->hbalock);
1420         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1421         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1422 }
1423
1424 static void
1425 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1426 {
1427         struct lpfc_board_event_header board_event;
1428         struct Scsi_Host *shost;
1429
1430         board_event.event_type = FC_REG_BOARD_EVENT;
1431         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1432         shost = lpfc_shost_from_vport(phba->pport);
1433         fc_host_post_vendor_event(shost, fc_get_event_number(),
1434                                   sizeof(board_event),
1435                                   (char *) &board_event,
1436                                   LPFC_NL_VENDOR_ID);
1437 }
1438
1439 /**
1440  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1441  * @phba: pointer to lpfc hba data structure.
1442  *
1443  * This routine is invoked to handle the following HBA hardware error
1444  * conditions:
1445  * 1 - HBA error attention interrupt
1446  * 2 - DMA ring index out of range
1447  * 3 - Mailbox command came back as unknown
1448  **/
1449 static void
1450 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1451 {
1452         struct lpfc_vport *vport = phba->pport;
1453         struct lpfc_sli   *psli = &phba->sli;
1454         uint32_t event_data;
1455         unsigned long temperature;
1456         struct temp_event temp_event_data;
1457         struct Scsi_Host  *shost;
1458
1459         /* If the pci channel is offline, ignore possible errors,
1460          * since we cannot communicate with the pci card anyway.
1461          */
1462         if (pci_channel_offline(phba->pcidev)) {
1463                 spin_lock_irq(&phba->hbalock);
1464                 phba->hba_flag &= ~DEFER_ERATT;
1465                 spin_unlock_irq(&phba->hbalock);
1466                 return;
1467         }
1468
1469         /* If resets are disabled then leave the HBA alone and return */
1470         if (!phba->cfg_enable_hba_reset)
1471                 return;
1472
1473         /* Send an internal error event to mgmt application */
1474         lpfc_board_errevt_to_mgmt(phba);
1475
1476         if (phba->hba_flag & DEFER_ERATT)
1477                 lpfc_handle_deferred_eratt(phba);
1478
1479         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1480                 if (phba->work_hs & HS_FFER6)
1481                         /* Re-establishing Link */
1482                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1483                                         "1301 Re-establishing Link "
1484                                         "Data: x%x x%x x%x\n",
1485                                         phba->work_hs, phba->work_status[0],
1486                                         phba->work_status[1]);
1487                 if (phba->work_hs & HS_FFER8)
1488                         /* Device Zeroization */
1489                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490                                         "2861 Host Authentication device "
1491                                         "zeroization Data:x%x x%x x%x\n",
1492                                         phba->work_hs, phba->work_status[0],
1493                                         phba->work_status[1]);
1494
1495                 spin_lock_irq(&phba->hbalock);
1496                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1497                 spin_unlock_irq(&phba->hbalock);
1498
1499                 /*
1500                 * Firmware stops when it triggled erratt with HS_FFER6.
1501                 * That could cause the I/Os dropped by the firmware.
1502                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1503                 * retry it after re-establishing link.
1504                 */
1505                 lpfc_sli_abort_fcp_rings(phba);
1506
1507                 /*
1508                  * There was a firmware error.  Take the hba offline and then
1509                  * attempt to restart it.
1510                  */
1511                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512                 lpfc_offline(phba);
1513                 lpfc_sli_brdrestart(phba);
1514                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1515                         lpfc_unblock_mgmt_io(phba);
1516                         return;
1517                 }
1518                 lpfc_unblock_mgmt_io(phba);
1519         } else if (phba->work_hs & HS_CRIT_TEMP) {
1520                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1521                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1522                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1523                 temp_event_data.data = (uint32_t)temperature;
1524
1525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1526                                 "0406 Adapter maximum temperature exceeded "
1527                                 "(%ld), taking this port offline "
1528                                 "Data: x%x x%x x%x\n",
1529                                 temperature, phba->work_hs,
1530                                 phba->work_status[0], phba->work_status[1]);
1531
1532                 shost = lpfc_shost_from_vport(phba->pport);
1533                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1534                                           sizeof(temp_event_data),
1535                                           (char *) &temp_event_data,
1536                                           SCSI_NL_VID_TYPE_PCI
1537                                           | PCI_VENDOR_ID_EMULEX);
1538
1539                 spin_lock_irq(&phba->hbalock);
1540                 phba->over_temp_state = HBA_OVER_TEMP;
1541                 spin_unlock_irq(&phba->hbalock);
1542                 lpfc_offline_eratt(phba);
1543
1544         } else {
1545                 /* The if clause above forces this code path when the status
1546                  * failure is a value other than FFER6. Do not call the offline
1547                  * twice. This is the adapter hardware error path.
1548                  */
1549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550                                 "0457 Adapter Hardware Error "
1551                                 "Data: x%x x%x x%x\n",
1552                                 phba->work_hs,
1553                                 phba->work_status[0], phba->work_status[1]);
1554
1555                 event_data = FC_REG_DUMP_EVENT;
1556                 shost = lpfc_shost_from_vport(vport);
1557                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1558                                 sizeof(event_data), (char *) &event_data,
1559                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1560
1561                 lpfc_offline_eratt(phba);
1562         }
1563         return;
1564 }
1565
1566 /**
1567  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1568  * @phba: pointer to lpfc hba data structure.
1569  * @mbx_action: flag for mailbox shutdown action.
1570  *
1571  * This routine is invoked to perform an SLI4 port PCI function reset in
1572  * response to port status register polling attention. It waits for port
1573  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1574  * During this process, interrupt vectors are freed and later requested
1575  * for handling possible port resource change.
1576  **/
1577 static int
1578 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1579                             bool en_rn_msg)
1580 {
1581         int rc;
1582         uint32_t intr_mode;
1583
1584         /*
1585          * On error status condition, driver need to wait for port
1586          * ready before performing reset.
1587          */
1588         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1589         if (!rc) {
1590                 /* need reset: attempt for port recovery */
1591                 if (en_rn_msg)
1592                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1593                                         "2887 Reset Needed: Attempting Port "
1594                                         "Recovery...\n");
1595                 lpfc_offline_prep(phba, mbx_action);
1596                 lpfc_offline(phba);
1597                 /* release interrupt for possible resource change */
1598                 lpfc_sli4_disable_intr(phba);
1599                 lpfc_sli_brdrestart(phba);
1600                 /* request and enable interrupt */
1601                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1602                 if (intr_mode == LPFC_INTR_ERROR) {
1603                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1604                                         "3175 Failed to enable interrupt\n");
1605                         return -EIO;
1606                 } else {
1607                         phba->intr_mode = intr_mode;
1608                 }
1609                 rc = lpfc_online(phba);
1610                 if (rc == 0)
1611                         lpfc_unblock_mgmt_io(phba);
1612         }
1613         return rc;
1614 }
1615
1616 /**
1617  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1618  * @phba: pointer to lpfc hba data structure.
1619  *
1620  * This routine is invoked to handle the SLI4 HBA hardware error attention
1621  * conditions.
1622  **/
1623 static void
1624 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1625 {
1626         struct lpfc_vport *vport = phba->pport;
1627         uint32_t event_data;
1628         struct Scsi_Host *shost;
1629         uint32_t if_type;
1630         struct lpfc_register portstat_reg = {0};
1631         uint32_t reg_err1, reg_err2;
1632         uint32_t uerrlo_reg, uemasklo_reg;
1633         uint32_t pci_rd_rc1, pci_rd_rc2;
1634         bool en_rn_msg = true;
1635         struct temp_event temp_event_data;
1636         int rc;
1637
1638         /* If the pci channel is offline, ignore possible errors, since
1639          * we cannot communicate with the pci card anyway.
1640          */
1641         if (pci_channel_offline(phba->pcidev))
1642                 return;
1643
1644         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1645         switch (if_type) {
1646         case LPFC_SLI_INTF_IF_TYPE_0:
1647                 pci_rd_rc1 = lpfc_readl(
1648                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1649                                 &uerrlo_reg);
1650                 pci_rd_rc2 = lpfc_readl(
1651                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1652                                 &uemasklo_reg);
1653                 /* consider PCI bus read error as pci_channel_offline */
1654                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1655                         return;
1656                 lpfc_sli4_offline_eratt(phba);
1657                 break;
1658
1659         case LPFC_SLI_INTF_IF_TYPE_2:
1660                 pci_rd_rc1 = lpfc_readl(
1661                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1662                                 &portstat_reg.word0);
1663                 /* consider PCI bus read error as pci_channel_offline */
1664                 if (pci_rd_rc1 == -EIO) {
1665                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1666                                 "3151 PCI bus read access failure: x%x\n",
1667                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1668                         return;
1669                 }
1670                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1671                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1672                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1673                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674                                 "2889 Port Overtemperature event, "
1675                                 "taking port offline Data: x%x x%x\n",
1676                                 reg_err1, reg_err2);
1677
1678                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1679                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1680                         temp_event_data.data = 0xFFFFFFFF;
1681
1682                         shost = lpfc_shost_from_vport(phba->pport);
1683                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1684                                                   sizeof(temp_event_data),
1685                                                   (char *)&temp_event_data,
1686                                                   SCSI_NL_VID_TYPE_PCI
1687                                                   | PCI_VENDOR_ID_EMULEX);
1688
1689                         spin_lock_irq(&phba->hbalock);
1690                         phba->over_temp_state = HBA_OVER_TEMP;
1691                         spin_unlock_irq(&phba->hbalock);
1692                         lpfc_sli4_offline_eratt(phba);
1693                         return;
1694                 }
1695                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1696                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1697                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1698                                         "3143 Port Down: Firmware Update "
1699                                         "Detected\n");
1700                         en_rn_msg = false;
1701                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1703                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704                                         "3144 Port Down: Debug Dump\n");
1705                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1706                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1708                                         "3145 Port Down: Provisioning\n");
1709
1710                 /* If resets are disabled then leave the HBA alone and return */
1711                 if (!phba->cfg_enable_hba_reset)
1712                         return;
1713
1714                 /* Check port status register for function reset */
1715                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1716                                 en_rn_msg);
1717                 if (rc == 0) {
1718                         /* don't report event on forced debug dump */
1719                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1720                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1721                                 return;
1722                         else
1723                                 break;
1724                 }
1725                 /* fall through for not able to recover */
1726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1727                                 "3152 Unrecoverable error, bring the port "
1728                                 "offline\n");
1729                 lpfc_sli4_offline_eratt(phba);
1730                 break;
1731         case LPFC_SLI_INTF_IF_TYPE_1:
1732         default:
1733                 break;
1734         }
1735         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1736                         "3123 Report dump event to upper layer\n");
1737         /* Send an internal error event to mgmt application */
1738         lpfc_board_errevt_to_mgmt(phba);
1739
1740         event_data = FC_REG_DUMP_EVENT;
1741         shost = lpfc_shost_from_vport(vport);
1742         fc_host_post_vendor_event(shost, fc_get_event_number(),
1743                                   sizeof(event_data), (char *) &event_data,
1744                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1745 }
1746
1747 /**
1748  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1749  * @phba: pointer to lpfc HBA data structure.
1750  *
1751  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1752  * routine from the API jump table function pointer from the lpfc_hba struct.
1753  *
1754  * Return codes
1755  *   0 - success.
1756  *   Any other value - error.
1757  **/
1758 void
1759 lpfc_handle_eratt(struct lpfc_hba *phba)
1760 {
1761         (*phba->lpfc_handle_eratt)(phba);
1762 }
1763
1764 /**
1765  * lpfc_handle_latt - The HBA link event handler
1766  * @phba: pointer to lpfc hba data structure.
1767  *
1768  * This routine is invoked from the worker thread to handle a HBA host
1769  * attention link event.
1770  **/
1771 void
1772 lpfc_handle_latt(struct lpfc_hba *phba)
1773 {
1774         struct lpfc_vport *vport = phba->pport;
1775         struct lpfc_sli   *psli = &phba->sli;
1776         LPFC_MBOXQ_t *pmb;
1777         volatile uint32_t control;
1778         struct lpfc_dmabuf *mp;
1779         int rc = 0;
1780
1781         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1782         if (!pmb) {
1783                 rc = 1;
1784                 goto lpfc_handle_latt_err_exit;
1785         }
1786
1787         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1788         if (!mp) {
1789                 rc = 2;
1790                 goto lpfc_handle_latt_free_pmb;
1791         }
1792
1793         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1794         if (!mp->virt) {
1795                 rc = 3;
1796                 goto lpfc_handle_latt_free_mp;
1797         }
1798
1799         /* Cleanup any outstanding ELS commands */
1800         lpfc_els_flush_all_cmd(phba);
1801
1802         psli->slistat.link_event++;
1803         lpfc_read_topology(phba, pmb, mp);
1804         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1805         pmb->vport = vport;
1806         /* Block ELS IOCBs until we have processed this mbox command */
1807         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1808         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1809         if (rc == MBX_NOT_FINISHED) {
1810                 rc = 4;
1811                 goto lpfc_handle_latt_free_mbuf;
1812         }
1813
1814         /* Clear Link Attention in HA REG */
1815         spin_lock_irq(&phba->hbalock);
1816         writel(HA_LATT, phba->HAregaddr);
1817         readl(phba->HAregaddr); /* flush */
1818         spin_unlock_irq(&phba->hbalock);
1819
1820         return;
1821
1822 lpfc_handle_latt_free_mbuf:
1823         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1824         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1825 lpfc_handle_latt_free_mp:
1826         kfree(mp);
1827 lpfc_handle_latt_free_pmb:
1828         mempool_free(pmb, phba->mbox_mem_pool);
1829 lpfc_handle_latt_err_exit:
1830         /* Enable Link attention interrupts */
1831         spin_lock_irq(&phba->hbalock);
1832         psli->sli_flag |= LPFC_PROCESS_LA;
1833         control = readl(phba->HCregaddr);
1834         control |= HC_LAINT_ENA;
1835         writel(control, phba->HCregaddr);
1836         readl(phba->HCregaddr); /* flush */
1837
1838         /* Clear Link Attention in HA REG */
1839         writel(HA_LATT, phba->HAregaddr);
1840         readl(phba->HAregaddr); /* flush */
1841         spin_unlock_irq(&phba->hbalock);
1842         lpfc_linkdown(phba);
1843         phba->link_state = LPFC_HBA_ERROR;
1844
1845         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1846                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1847
1848         return;
1849 }
1850
1851 /**
1852  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1853  * @phba: pointer to lpfc hba data structure.
1854  * @vpd: pointer to the vital product data.
1855  * @len: length of the vital product data in bytes.
1856  *
1857  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1858  * an array of characters. In this routine, the ModelName, ProgramType, and
1859  * ModelDesc, etc. fields of the phba data structure will be populated.
1860  *
1861  * Return codes
1862  *   0 - pointer to the VPD passed in is NULL
1863  *   1 - success
1864  **/
1865 int
1866 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1867 {
1868         uint8_t lenlo, lenhi;
1869         int Length;
1870         int i, j;
1871         int finished = 0;
1872         int index = 0;
1873
1874         if (!vpd)
1875                 return 0;
1876
1877         /* Vital Product */
1878         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1879                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1880                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1881                         (uint32_t) vpd[3]);
1882         while (!finished && (index < (len - 4))) {
1883                 switch (vpd[index]) {
1884                 case 0x82:
1885                 case 0x91:
1886                         index += 1;
1887                         lenlo = vpd[index];
1888                         index += 1;
1889                         lenhi = vpd[index];
1890                         index += 1;
1891                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1892                         index += i;
1893                         break;
1894                 case 0x90:
1895                         index += 1;
1896                         lenlo = vpd[index];
1897                         index += 1;
1898                         lenhi = vpd[index];
1899                         index += 1;
1900                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1901                         if (Length > len - index)
1902                                 Length = len - index;
1903                         while (Length > 0) {
1904                         /* Look for Serial Number */
1905                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1906                                 index += 2;
1907                                 i = vpd[index];
1908                                 index += 1;
1909                                 j = 0;
1910                                 Length -= (3+i);
1911                                 while(i--) {
1912                                         phba->SerialNumber[j++] = vpd[index++];
1913                                         if (j == 31)
1914                                                 break;
1915                                 }
1916                                 phba->SerialNumber[j] = 0;
1917                                 continue;
1918                         }
1919                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1920                                 phba->vpd_flag |= VPD_MODEL_DESC;
1921                                 index += 2;
1922                                 i = vpd[index];
1923                                 index += 1;
1924                                 j = 0;
1925                                 Length -= (3+i);
1926                                 while(i--) {
1927                                         phba->ModelDesc[j++] = vpd[index++];
1928                                         if (j == 255)
1929                                                 break;
1930                                 }
1931                                 phba->ModelDesc[j] = 0;
1932                                 continue;
1933                         }
1934                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1935                                 phba->vpd_flag |= VPD_MODEL_NAME;
1936                                 index += 2;
1937                                 i = vpd[index];
1938                                 index += 1;
1939                                 j = 0;
1940                                 Length -= (3+i);
1941                                 while(i--) {
1942                                         phba->ModelName[j++] = vpd[index++];
1943                                         if (j == 79)
1944                                                 break;
1945                                 }
1946                                 phba->ModelName[j] = 0;
1947                                 continue;
1948                         }
1949                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1950                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1951                                 index += 2;
1952                                 i = vpd[index];
1953                                 index += 1;
1954                                 j = 0;
1955                                 Length -= (3+i);
1956                                 while(i--) {
1957                                         phba->ProgramType[j++] = vpd[index++];
1958                                         if (j == 255)
1959                                                 break;
1960                                 }
1961                                 phba->ProgramType[j] = 0;
1962                                 continue;
1963                         }
1964                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1965                                 phba->vpd_flag |= VPD_PORT;
1966                                 index += 2;
1967                                 i = vpd[index];
1968                                 index += 1;
1969                                 j = 0;
1970                                 Length -= (3+i);
1971                                 while(i--) {
1972                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1973                                             (phba->sli4_hba.pport_name_sta ==
1974                                              LPFC_SLI4_PPNAME_GET)) {
1975                                                 j++;
1976                                                 index++;
1977                                         } else
1978                                                 phba->Port[j++] = vpd[index++];
1979                                         if (j == 19)
1980                                                 break;
1981                                 }
1982                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1983                                     (phba->sli4_hba.pport_name_sta ==
1984                                      LPFC_SLI4_PPNAME_NON))
1985                                         phba->Port[j] = 0;
1986                                 continue;
1987                         }
1988                         else {
1989                                 index += 2;
1990                                 i = vpd[index];
1991                                 index += 1;
1992                                 index += i;
1993                                 Length -= (3 + i);
1994                         }
1995                 }
1996                 finished = 0;
1997                 break;
1998                 case 0x78:
1999                         finished = 1;
2000                         break;
2001                 default:
2002                         index ++;
2003                         break;
2004                 }
2005         }
2006
2007         return(1);
2008 }
2009
2010 /**
2011  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2012  * @phba: pointer to lpfc hba data structure.
2013  * @mdp: pointer to the data structure to hold the derived model name.
2014  * @descp: pointer to the data structure to hold the derived description.
2015  *
2016  * This routine retrieves HBA's description based on its registered PCI device
2017  * ID. The @descp passed into this function points to an array of 256 chars. It
2018  * shall be returned with the model name, maximum speed, and the host bus type.
2019  * The @mdp passed into this function points to an array of 80 chars. When the
2020  * function returns, the @mdp will be filled with the model name.
2021  **/
2022 static void
2023 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2024 {
2025         lpfc_vpd_t *vp;
2026         uint16_t dev_id = phba->pcidev->device;
2027         int max_speed;
2028         int GE = 0;
2029         int oneConnect = 0; /* default is not a oneConnect */
2030         struct {
2031                 char *name;
2032                 char *bus;
2033                 char *function;
2034         } m = {"<Unknown>", "", ""};
2035
2036         if (mdp && mdp[0] != '\0'
2037                 && descp && descp[0] != '\0')
2038                 return;
2039
2040         if (phba->lmt & LMT_32Gb)
2041                 max_speed = 32;
2042         else if (phba->lmt & LMT_16Gb)
2043                 max_speed = 16;
2044         else if (phba->lmt & LMT_10Gb)
2045                 max_speed = 10;
2046         else if (phba->lmt & LMT_8Gb)
2047                 max_speed = 8;
2048         else if (phba->lmt & LMT_4Gb)
2049                 max_speed = 4;
2050         else if (phba->lmt & LMT_2Gb)
2051                 max_speed = 2;
2052         else if (phba->lmt & LMT_1Gb)
2053                 max_speed = 1;
2054         else
2055                 max_speed = 0;
2056
2057         vp = &phba->vpd;
2058
2059         switch (dev_id) {
2060         case PCI_DEVICE_ID_FIREFLY:
2061                 m = (typeof(m)){"LP6000", "PCI",
2062                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2063                 break;
2064         case PCI_DEVICE_ID_SUPERFLY:
2065                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2066                         m = (typeof(m)){"LP7000", "PCI", ""};
2067                 else
2068                         m = (typeof(m)){"LP7000E", "PCI", ""};
2069                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2070                 break;
2071         case PCI_DEVICE_ID_DRAGONFLY:
2072                 m = (typeof(m)){"LP8000", "PCI",
2073                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2074                 break;
2075         case PCI_DEVICE_ID_CENTAUR:
2076                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2077                         m = (typeof(m)){"LP9002", "PCI", ""};
2078                 else
2079                         m = (typeof(m)){"LP9000", "PCI", ""};
2080                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2081                 break;
2082         case PCI_DEVICE_ID_RFLY:
2083                 m = (typeof(m)){"LP952", "PCI",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_PEGASUS:
2087                 m = (typeof(m)){"LP9802", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_THOR:
2091                 m = (typeof(m)){"LP10000", "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_VIPER:
2095                 m = (typeof(m)){"LPX1000",  "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_PFLY:
2099                 m = (typeof(m)){"LP982", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_TFLY:
2103                 m = (typeof(m)){"LP1050", "PCI-X",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS:
2107                 m = (typeof(m)){"LP11000", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_SCSP:
2111                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_HELIOS_DCSP:
2115                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE:
2119                 m = (typeof(m)){"LPe1000", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2123                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2127                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2128                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2129                 break;
2130         case PCI_DEVICE_ID_BMID:
2131                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_BSMB:
2134                 m = (typeof(m)){"LP111", "PCI-X2",
2135                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2136                 break;
2137         case PCI_DEVICE_ID_ZEPHYR:
2138                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2139                 break;
2140         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2141                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2142                 break;
2143         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2144                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2145                 GE = 1;
2146                 break;
2147         case PCI_DEVICE_ID_ZMID:
2148                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2149                 break;
2150         case PCI_DEVICE_ID_ZSMB:
2151                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP101:
2154                 m = (typeof(m)){"LP101", "PCI-X",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP10000S:
2158                 m = (typeof(m)){"LP10000-S", "PCI",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LP11000S:
2162                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_LPE11000S:
2166                 m = (typeof(m)){"LPe11000-S", "PCIe",
2167                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2168                 break;
2169         case PCI_DEVICE_ID_SAT:
2170                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2171                 break;
2172         case PCI_DEVICE_ID_SAT_MID:
2173                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2174                 break;
2175         case PCI_DEVICE_ID_SAT_SMB:
2176                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2177                 break;
2178         case PCI_DEVICE_ID_SAT_DCSP:
2179                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2180                 break;
2181         case PCI_DEVICE_ID_SAT_SCSP:
2182                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2183                 break;
2184         case PCI_DEVICE_ID_SAT_S:
2185                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2186                 break;
2187         case PCI_DEVICE_ID_HORNET:
2188                 m = (typeof(m)){"LP21000", "PCIe",
2189                                 "Obsolete, Unsupported FCoE Adapter"};
2190                 GE = 1;
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_VF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_PF:
2197                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_PROTEUS_S:
2201                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2202                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2203                 break;
2204         case PCI_DEVICE_ID_TIGERSHARK:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_TOMCAT:
2209                 oneConnect = 1;
2210                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2211                 break;
2212         case PCI_DEVICE_ID_FALCON:
2213                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2214                                 "EmulexSecure Fibre"};
2215                 break;
2216         case PCI_DEVICE_ID_BALIUS:
2217                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2218                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2219                 break;
2220         case PCI_DEVICE_ID_LANCER_FC:
2221                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FC_VF:
2224                 m = (typeof(m)){"LPe16000", "PCIe",
2225                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2230                 break;
2231         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2232                 oneConnect = 1;
2233                 m = (typeof(m)){"OCe15100", "PCIe",
2234                                 "Obsolete, Unsupported FCoE"};
2235                 break;
2236         case PCI_DEVICE_ID_LANCER_G6_FC:
2237                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2238                 break;
2239         case PCI_DEVICE_ID_SKYHAWK:
2240         case PCI_DEVICE_ID_SKYHAWK_VF:
2241                 oneConnect = 1;
2242                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2243                 break;
2244         default:
2245                 m = (typeof(m)){"Unknown", "", ""};
2246                 break;
2247         }
2248
2249         if (mdp && mdp[0] == '\0')
2250                 snprintf(mdp, 79,"%s", m.name);
2251         /*
2252          * oneConnect hba requires special processing, they are all initiators
2253          * and we put the port number on the end
2254          */
2255         if (descp && descp[0] == '\0') {
2256                 if (oneConnect)
2257                         snprintf(descp, 255,
2258                                 "Emulex OneConnect %s, %s Initiator %s",
2259                                 m.name, m.function,
2260                                 phba->Port);
2261                 else if (max_speed == 0)
2262                         snprintf(descp, 255,
2263                                 "Emulex %s %s %s",
2264                                 m.name, m.bus, m.function);
2265                 else
2266                         snprintf(descp, 255,
2267                                 "Emulex %s %d%s %s %s",
2268                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2269                                 m.bus, m.function);
2270         }
2271 }
2272
2273 /**
2274  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2275  * @phba: pointer to lpfc hba data structure.
2276  * @pring: pointer to a IOCB ring.
2277  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2278  *
2279  * This routine posts a given number of IOCBs with the associated DMA buffer
2280  * descriptors specified by the cnt argument to the given IOCB ring.
2281  *
2282  * Return codes
2283  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2284  **/
2285 int
2286 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2287 {
2288         IOCB_t *icmd;
2289         struct lpfc_iocbq *iocb;
2290         struct lpfc_dmabuf *mp1, *mp2;
2291
2292         cnt += pring->missbufcnt;
2293
2294         /* While there are buffers to post */
2295         while (cnt > 0) {
2296                 /* Allocate buffer for  command iocb */
2297                 iocb = lpfc_sli_get_iocbq(phba);
2298                 if (iocb == NULL) {
2299                         pring->missbufcnt = cnt;
2300                         return cnt;
2301                 }
2302                 icmd = &iocb->iocb;
2303
2304                 /* 2 buffers can be posted per command */
2305                 /* Allocate buffer to post */
2306                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2307                 if (mp1)
2308                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2309                 if (!mp1 || !mp1->virt) {
2310                         kfree(mp1);
2311                         lpfc_sli_release_iocbq(phba, iocb);
2312                         pring->missbufcnt = cnt;
2313                         return cnt;
2314                 }
2315
2316                 INIT_LIST_HEAD(&mp1->list);
2317                 /* Allocate buffer to post */
2318                 if (cnt > 1) {
2319                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2320                         if (mp2)
2321                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2322                                                             &mp2->phys);
2323                         if (!mp2 || !mp2->virt) {
2324                                 kfree(mp2);
2325                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2326                                 kfree(mp1);
2327                                 lpfc_sli_release_iocbq(phba, iocb);
2328                                 pring->missbufcnt = cnt;
2329                                 return cnt;
2330                         }
2331
2332                         INIT_LIST_HEAD(&mp2->list);
2333                 } else {
2334                         mp2 = NULL;
2335                 }
2336
2337                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2338                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2339                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2340                 icmd->ulpBdeCount = 1;
2341                 cnt--;
2342                 if (mp2) {
2343                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2344                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2345                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2346                         cnt--;
2347                         icmd->ulpBdeCount = 2;
2348                 }
2349
2350                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2351                 icmd->ulpLe = 1;
2352
2353                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2354                     IOCB_ERROR) {
2355                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2356                         kfree(mp1);
2357                         cnt++;
2358                         if (mp2) {
2359                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2360                                 kfree(mp2);
2361                                 cnt++;
2362                         }
2363                         lpfc_sli_release_iocbq(phba, iocb);
2364                         pring->missbufcnt = cnt;
2365                         return cnt;
2366                 }
2367                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2368                 if (mp2)
2369                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2370         }
2371         pring->missbufcnt = 0;
2372         return 0;
2373 }
2374
2375 /**
2376  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2377  * @phba: pointer to lpfc hba data structure.
2378  *
2379  * This routine posts initial receive IOCB buffers to the ELS ring. The
2380  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2381  * set to 64 IOCBs.
2382  *
2383  * Return codes
2384  *   0 - success (currently always success)
2385  **/
2386 static int
2387 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2388 {
2389         struct lpfc_sli *psli = &phba->sli;
2390
2391         /* Ring 0, ELS / CT buffers */
2392         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2393         /* Ring 2 - FCP no buffers needed */
2394
2395         return 0;
2396 }
2397
2398 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2399
2400 /**
2401  * lpfc_sha_init - Set up initial array of hash table entries
2402  * @HashResultPointer: pointer to an array as hash table.
2403  *
2404  * This routine sets up the initial values to the array of hash table entries
2405  * for the LC HBAs.
2406  **/
2407 static void
2408 lpfc_sha_init(uint32_t * HashResultPointer)
2409 {
2410         HashResultPointer[0] = 0x67452301;
2411         HashResultPointer[1] = 0xEFCDAB89;
2412         HashResultPointer[2] = 0x98BADCFE;
2413         HashResultPointer[3] = 0x10325476;
2414         HashResultPointer[4] = 0xC3D2E1F0;
2415 }
2416
2417 /**
2418  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2419  * @HashResultPointer: pointer to an initial/result hash table.
2420  * @HashWorkingPointer: pointer to an working hash table.
2421  *
2422  * This routine iterates an initial hash table pointed by @HashResultPointer
2423  * with the values from the working hash table pointeed by @HashWorkingPointer.
2424  * The results are putting back to the initial hash table, returned through
2425  * the @HashResultPointer as the result hash table.
2426  **/
2427 static void
2428 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2429 {
2430         int t;
2431         uint32_t TEMP;
2432         uint32_t A, B, C, D, E;
2433         t = 16;
2434         do {
2435                 HashWorkingPointer[t] =
2436                     S(1,
2437                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2438                                                                      8] ^
2439                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2440         } while (++t <= 79);
2441         t = 0;
2442         A = HashResultPointer[0];
2443         B = HashResultPointer[1];
2444         C = HashResultPointer[2];
2445         D = HashResultPointer[3];
2446         E = HashResultPointer[4];
2447
2448         do {
2449                 if (t < 20) {
2450                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2451                 } else if (t < 40) {
2452                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2453                 } else if (t < 60) {
2454                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2455                 } else {
2456                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2457                 }
2458                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2459                 E = D;
2460                 D = C;
2461                 C = S(30, B);
2462                 B = A;
2463                 A = TEMP;
2464         } while (++t <= 79);
2465
2466         HashResultPointer[0] += A;
2467         HashResultPointer[1] += B;
2468         HashResultPointer[2] += C;
2469         HashResultPointer[3] += D;
2470         HashResultPointer[4] += E;
2471
2472 }
2473
2474 /**
2475  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2476  * @RandomChallenge: pointer to the entry of host challenge random number array.
2477  * @HashWorking: pointer to the entry of the working hash array.
2478  *
2479  * This routine calculates the working hash array referred by @HashWorking
2480  * from the challenge random numbers associated with the host, referred by
2481  * @RandomChallenge. The result is put into the entry of the working hash
2482  * array and returned by reference through @HashWorking.
2483  **/
2484 static void
2485 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2486 {
2487         *HashWorking = (*RandomChallenge ^ *HashWorking);
2488 }
2489
2490 /**
2491  * lpfc_hba_init - Perform special handling for LC HBA initialization
2492  * @phba: pointer to lpfc hba data structure.
2493  * @hbainit: pointer to an array of unsigned 32-bit integers.
2494  *
2495  * This routine performs the special handling for LC HBA initialization.
2496  **/
2497 void
2498 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2499 {
2500         int t;
2501         uint32_t *HashWorking;
2502         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2503
2504         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2505         if (!HashWorking)
2506                 return;
2507
2508         HashWorking[0] = HashWorking[78] = *pwwnn++;
2509         HashWorking[1] = HashWorking[79] = *pwwnn;
2510
2511         for (t = 0; t < 7; t++)
2512                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2513
2514         lpfc_sha_init(hbainit);
2515         lpfc_sha_iterate(hbainit, HashWorking);
2516         kfree(HashWorking);
2517 }
2518
2519 /**
2520  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2521  * @vport: pointer to a virtual N_Port data structure.
2522  *
2523  * This routine performs the necessary cleanups before deleting the @vport.
2524  * It invokes the discovery state machine to perform necessary state
2525  * transitions and to release the ndlps associated with the @vport. Note,
2526  * the physical port is treated as @vport 0.
2527  **/
2528 void
2529 lpfc_cleanup(struct lpfc_vport *vport)
2530 {
2531         struct lpfc_hba   *phba = vport->phba;
2532         struct lpfc_nodelist *ndlp, *next_ndlp;
2533         int i = 0;
2534
2535         if (phba->link_state > LPFC_LINK_DOWN)
2536                 lpfc_port_link_failure(vport);
2537
2538         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2539                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2540                         ndlp = lpfc_enable_node(vport, ndlp,
2541                                                 NLP_STE_UNUSED_NODE);
2542                         if (!ndlp)
2543                                 continue;
2544                         spin_lock_irq(&phba->ndlp_lock);
2545                         NLP_SET_FREE_REQ(ndlp);
2546                         spin_unlock_irq(&phba->ndlp_lock);
2547                         /* Trigger the release of the ndlp memory */
2548                         lpfc_nlp_put(ndlp);
2549                         continue;
2550                 }
2551                 spin_lock_irq(&phba->ndlp_lock);
2552                 if (NLP_CHK_FREE_REQ(ndlp)) {
2553                         /* The ndlp should not be in memory free mode already */
2554                         spin_unlock_irq(&phba->ndlp_lock);
2555                         continue;
2556                 } else
2557                         /* Indicate request for freeing ndlp memory */
2558                         NLP_SET_FREE_REQ(ndlp);
2559                 spin_unlock_irq(&phba->ndlp_lock);
2560
2561                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2562                     ndlp->nlp_DID == Fabric_DID) {
2563                         /* Just free up ndlp with Fabric_DID for vports */
2564                         lpfc_nlp_put(ndlp);
2565                         continue;
2566                 }
2567
2568                 /* take care of nodes in unused state before the state
2569                  * machine taking action.
2570                  */
2571                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2572                         lpfc_nlp_put(ndlp);
2573                         continue;
2574                 }
2575
2576                 if (ndlp->nlp_type & NLP_FABRIC)
2577                         lpfc_disc_state_machine(vport, ndlp, NULL,
2578                                         NLP_EVT_DEVICE_RECOVERY);
2579
2580                 lpfc_disc_state_machine(vport, ndlp, NULL,
2581                                              NLP_EVT_DEVICE_RM);
2582         }
2583
2584         /* At this point, ALL ndlp's should be gone
2585          * because of the previous NLP_EVT_DEVICE_RM.
2586          * Lets wait for this to happen, if needed.
2587          */
2588         while (!list_empty(&vport->fc_nodes)) {
2589                 if (i++ > 3000) {
2590                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2591                                 "0233 Nodelist not empty\n");
2592                         list_for_each_entry_safe(ndlp, next_ndlp,
2593                                                 &vport->fc_nodes, nlp_listp) {
2594                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2595                                                 LOG_NODE,
2596                                                 "0282 did:x%x ndlp:x%p "
2597                                                 "usgmap:x%x refcnt:%d\n",
2598                                                 ndlp->nlp_DID, (void *)ndlp,
2599                                                 ndlp->nlp_usg_map,
2600                                                 atomic_read(
2601                                                         &ndlp->kref.refcount));
2602                         }
2603                         break;
2604                 }
2605
2606                 /* Wait for any activity on ndlps to settle */
2607                 msleep(10);
2608         }
2609         lpfc_cleanup_vports_rrqs(vport, NULL);
2610 }
2611
2612 /**
2613  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2614  * @vport: pointer to a virtual N_Port data structure.
2615  *
2616  * This routine stops all the timers associated with a @vport. This function
2617  * is invoked before disabling or deleting a @vport. Note that the physical
2618  * port is treated as @vport 0.
2619  **/
2620 void
2621 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2622 {
2623         del_timer_sync(&vport->els_tmofunc);
2624         del_timer_sync(&vport->fc_fdmitmo);
2625         del_timer_sync(&vport->delayed_disc_tmo);
2626         lpfc_can_disctmo(vport);
2627         return;
2628 }
2629
2630 /**
2631  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2632  * @phba: pointer to lpfc hba data structure.
2633  *
2634  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2635  * caller of this routine should already hold the host lock.
2636  **/
2637 void
2638 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2639 {
2640         /* Clear pending FCF rediscovery wait flag */
2641         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2642
2643         /* Now, try to stop the timer */
2644         del_timer(&phba->fcf.redisc_wait);
2645 }
2646
2647 /**
2648  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2649  * @phba: pointer to lpfc hba data structure.
2650  *
2651  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2652  * checks whether the FCF rediscovery wait timer is pending with the host
2653  * lock held before proceeding with disabling the timer and clearing the
2654  * wait timer pendig flag.
2655  **/
2656 void
2657 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2658 {
2659         spin_lock_irq(&phba->hbalock);
2660         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2661                 /* FCF rediscovery timer already fired or stopped */
2662                 spin_unlock_irq(&phba->hbalock);
2663                 return;
2664         }
2665         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2666         /* Clear failover in progress flags */
2667         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2668         spin_unlock_irq(&phba->hbalock);
2669 }
2670
2671 /**
2672  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2673  * @phba: pointer to lpfc hba data structure.
2674  *
2675  * This routine stops all the timers associated with a HBA. This function is
2676  * invoked before either putting a HBA offline or unloading the driver.
2677  **/
2678 void
2679 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2680 {
2681         lpfc_stop_vport_timers(phba->pport);
2682         del_timer_sync(&phba->sli.mbox_tmo);
2683         del_timer_sync(&phba->fabric_block_timer);
2684         del_timer_sync(&phba->eratt_poll);
2685         del_timer_sync(&phba->hb_tmofunc);
2686         if (phba->sli_rev == LPFC_SLI_REV4) {
2687                 del_timer_sync(&phba->rrq_tmr);
2688                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2689         }
2690         phba->hb_outstanding = 0;
2691
2692         switch (phba->pci_dev_grp) {
2693         case LPFC_PCI_DEV_LP:
2694                 /* Stop any LightPulse device specific driver timers */
2695                 del_timer_sync(&phba->fcp_poll_timer);
2696                 break;
2697         case LPFC_PCI_DEV_OC:
2698                 /* Stop any OneConnect device sepcific driver timers */
2699                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2700                 break;
2701         default:
2702                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2703                                 "0297 Invalid device group (x%x)\n",
2704                                 phba->pci_dev_grp);
2705                 break;
2706         }
2707         return;
2708 }
2709
2710 /**
2711  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2712  * @phba: pointer to lpfc hba data structure.
2713  *
2714  * This routine marks a HBA's management interface as blocked. Once the HBA's
2715  * management interface is marked as blocked, all the user space access to
2716  * the HBA, whether they are from sysfs interface or libdfc interface will
2717  * all be blocked. The HBA is set to block the management interface when the
2718  * driver prepares the HBA interface for online or offline.
2719  **/
2720 static void
2721 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2722 {
2723         unsigned long iflag;
2724         uint8_t actcmd = MBX_HEARTBEAT;
2725         unsigned long timeout;
2726
2727         spin_lock_irqsave(&phba->hbalock, iflag);
2728         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2729         spin_unlock_irqrestore(&phba->hbalock, iflag);
2730         if (mbx_action == LPFC_MBX_NO_WAIT)
2731                 return;
2732         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2733         spin_lock_irqsave(&phba->hbalock, iflag);
2734         if (phba->sli.mbox_active) {
2735                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2736                 /* Determine how long we might wait for the active mailbox
2737                  * command to be gracefully completed by firmware.
2738                  */
2739                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2740                                 phba->sli.mbox_active) * 1000) + jiffies;
2741         }
2742         spin_unlock_irqrestore(&phba->hbalock, iflag);
2743
2744         /* Wait for the outstnading mailbox command to complete */
2745         while (phba->sli.mbox_active) {
2746                 /* Check active mailbox complete status every 2ms */
2747                 msleep(2);
2748                 if (time_after(jiffies, timeout)) {
2749                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2750                                 "2813 Mgmt IO is Blocked %x "
2751                                 "- mbox cmd %x still active\n",
2752                                 phba->sli.sli_flag, actcmd);
2753                         break;
2754                 }
2755         }
2756 }
2757
2758 /**
2759  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2760  * @phba: pointer to lpfc hba data structure.
2761  *
2762  * Allocate RPIs for all active remote nodes. This is needed whenever
2763  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2764  * is to fixup the temporary rpi assignments.
2765  **/
2766 void
2767 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2768 {
2769         struct lpfc_nodelist  *ndlp, *next_ndlp;
2770         struct lpfc_vport **vports;
2771         int i;
2772
2773         if (phba->sli_rev != LPFC_SLI_REV4)
2774                 return;
2775
2776         vports = lpfc_create_vport_work_array(phba);
2777         if (vports != NULL) {
2778                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2779                         if (vports[i]->load_flag & FC_UNLOADING)
2780                                 continue;
2781
2782                         list_for_each_entry_safe(ndlp, next_ndlp,
2783                                                  &vports[i]->fc_nodes,
2784                                                  nlp_listp) {
2785                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2786                                         ndlp->nlp_rpi =
2787                                                 lpfc_sli4_alloc_rpi(phba);
2788                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2789                                                          LOG_NODE,
2790                                                          "0009 rpi:%x DID:%x "
2791                                                          "flg:%x map:%x %p\n",
2792                                                          ndlp->nlp_rpi,
2793                                                          ndlp->nlp_DID,
2794                                                          ndlp->nlp_flag,
2795                                                          ndlp->nlp_usg_map,
2796                                                          ndlp);
2797                                 }
2798                         }
2799                 }
2800         }
2801         lpfc_destroy_vport_work_array(phba, vports);
2802 }
2803
2804 /**
2805  * lpfc_online - Initialize and bring a HBA online
2806  * @phba: pointer to lpfc hba data structure.
2807  *
2808  * This routine initializes the HBA and brings a HBA online. During this
2809  * process, the management interface is blocked to prevent user space access
2810  * to the HBA interfering with the driver initialization.
2811  *
2812  * Return codes
2813  *   0 - successful
2814  *   1 - failed
2815  **/
2816 int
2817 lpfc_online(struct lpfc_hba *phba)
2818 {
2819         struct lpfc_vport *vport;
2820         struct lpfc_vport **vports;
2821         int i;
2822         bool vpis_cleared = false;
2823
2824         if (!phba)
2825                 return 0;
2826         vport = phba->pport;
2827
2828         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2829                 return 0;
2830
2831         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2832                         "0458 Bring Adapter online\n");
2833
2834         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2835
2836         if (!lpfc_sli_queue_setup(phba)) {
2837                 lpfc_unblock_mgmt_io(phba);
2838                 return 1;
2839         }
2840
2841         if (phba->sli_rev == LPFC_SLI_REV4) {
2842                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2843                         lpfc_unblock_mgmt_io(phba);
2844                         return 1;
2845                 }
2846                 spin_lock_irq(&phba->hbalock);
2847                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2848                         vpis_cleared = true;
2849                 spin_unlock_irq(&phba->hbalock);
2850         } else {
2851                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2852                         lpfc_unblock_mgmt_io(phba);
2853                         return 1;
2854                 }
2855         }
2856
2857         vports = lpfc_create_vport_work_array(phba);
2858         if (vports != NULL) {
2859                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2860                         struct Scsi_Host *shost;
2861                         shost = lpfc_shost_from_vport(vports[i]);
2862                         spin_lock_irq(shost->host_lock);
2863                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2864                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2865                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2866                         if (phba->sli_rev == LPFC_SLI_REV4) {
2867                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2868                                 if ((vpis_cleared) &&
2869                                     (vports[i]->port_type !=
2870                                         LPFC_PHYSICAL_PORT))
2871                                         vports[i]->vpi = 0;
2872                         }
2873                         spin_unlock_irq(shost->host_lock);
2874                 }
2875         }
2876         lpfc_destroy_vport_work_array(phba, vports);
2877
2878         lpfc_unblock_mgmt_io(phba);
2879         return 0;
2880 }
2881
2882 /**
2883  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2884  * @phba: pointer to lpfc hba data structure.
2885  *
2886  * This routine marks a HBA's management interface as not blocked. Once the
2887  * HBA's management interface is marked as not blocked, all the user space
2888  * access to the HBA, whether they are from sysfs interface or libdfc
2889  * interface will be allowed. The HBA is set to block the management interface
2890  * when the driver prepares the HBA interface for online or offline and then
2891  * set to unblock the management interface afterwards.
2892  **/
2893 void
2894 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2895 {
2896         unsigned long iflag;
2897
2898         spin_lock_irqsave(&phba->hbalock, iflag);
2899         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2900         spin_unlock_irqrestore(&phba->hbalock, iflag);
2901 }
2902
2903 /**
2904  * lpfc_offline_prep - Prepare a HBA to be brought offline
2905  * @phba: pointer to lpfc hba data structure.
2906  *
2907  * This routine is invoked to prepare a HBA to be brought offline. It performs
2908  * unregistration login to all the nodes on all vports and flushes the mailbox
2909  * queue to make it ready to be brought offline.
2910  **/
2911 void
2912 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2913 {
2914         struct lpfc_vport *vport = phba->pport;
2915         struct lpfc_nodelist  *ndlp, *next_ndlp;
2916         struct lpfc_vport **vports;
2917         struct Scsi_Host *shost;
2918         int i;
2919
2920         if (vport->fc_flag & FC_OFFLINE_MODE)
2921                 return;
2922
2923         lpfc_block_mgmt_io(phba, mbx_action);
2924
2925         lpfc_linkdown(phba);
2926
2927         /* Issue an unreg_login to all nodes on all vports */
2928         vports = lpfc_create_vport_work_array(phba);
2929         if (vports != NULL) {
2930                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2931                         if (vports[i]->load_flag & FC_UNLOADING)
2932                                 continue;
2933                         shost = lpfc_shost_from_vport(vports[i]);
2934                         spin_lock_irq(shost->host_lock);
2935                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2936                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2937                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2938                         spin_unlock_irq(shost->host_lock);
2939
2940                         shost = lpfc_shost_from_vport(vports[i]);
2941                         list_for_each_entry_safe(ndlp, next_ndlp,
2942                                                  &vports[i]->fc_nodes,
2943                                                  nlp_listp) {
2944                                 if (!NLP_CHK_NODE_ACT(ndlp))
2945                                         continue;
2946                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2947                                         continue;
2948                                 if (ndlp->nlp_type & NLP_FABRIC) {
2949                                         lpfc_disc_state_machine(vports[i], ndlp,
2950                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2951                                         lpfc_disc_state_machine(vports[i], ndlp,
2952                                                 NULL, NLP_EVT_DEVICE_RM);
2953                                 }
2954                                 spin_lock_irq(shost->host_lock);
2955                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2956                                 spin_unlock_irq(shost->host_lock);
2957                                 /*
2958                                  * Whenever an SLI4 port goes offline, free the
2959                                  * RPI. Get a new RPI when the adapter port
2960                                  * comes back online.
2961                                  */
2962                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2963                                         lpfc_printf_vlog(ndlp->vport,
2964                                                          KERN_INFO, LOG_NODE,
2965                                                          "0011 lpfc_offline: "
2966                                                          "ndlp:x%p did %x "
2967                                                          "usgmap:x%x rpi:%x\n",
2968                                                          ndlp, ndlp->nlp_DID,
2969                                                          ndlp->nlp_usg_map,
2970                                                          ndlp->nlp_rpi);
2971
2972                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2973                                 }
2974                                 lpfc_unreg_rpi(vports[i], ndlp);
2975                         }
2976                 }
2977         }
2978         lpfc_destroy_vport_work_array(phba, vports);
2979
2980         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2981 }
2982
2983 /**
2984  * lpfc_offline - Bring a HBA offline
2985  * @phba: pointer to lpfc hba data structure.
2986  *
2987  * This routine actually brings a HBA offline. It stops all the timers
2988  * associated with the HBA, brings down the SLI layer, and eventually
2989  * marks the HBA as in offline state for the upper layer protocol.
2990  **/
2991 void
2992 lpfc_offline(struct lpfc_hba *phba)
2993 {
2994         struct Scsi_Host  *shost;
2995         struct lpfc_vport **vports;
2996         int i;
2997
2998         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2999                 return;
3000
3001         /* stop port and all timers associated with this hba */
3002         lpfc_stop_port(phba);
3003         vports = lpfc_create_vport_work_array(phba);
3004         if (vports != NULL)
3005                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3006                         lpfc_stop_vport_timers(vports[i]);
3007         lpfc_destroy_vport_work_array(phba, vports);
3008         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3009                         "0460 Bring Adapter offline\n");
3010         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3011            now.  */
3012         lpfc_sli_hba_down(phba);
3013         spin_lock_irq(&phba->hbalock);
3014         phba->work_ha = 0;
3015         spin_unlock_irq(&phba->hbalock);
3016         vports = lpfc_create_vport_work_array(phba);
3017         if (vports != NULL)
3018                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3019                         shost = lpfc_shost_from_vport(vports[i]);
3020                         spin_lock_irq(shost->host_lock);
3021                         vports[i]->work_port_events = 0;
3022                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3023                         spin_unlock_irq(shost->host_lock);
3024                 }
3025         lpfc_destroy_vport_work_array(phba, vports);
3026 }
3027
3028 /**
3029  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3030  * @phba: pointer to lpfc hba data structure.
3031  *
3032  * This routine is to free all the SCSI buffers and IOCBs from the driver
3033  * list back to kernel. It is called from lpfc_pci_remove_one to free
3034  * the internal resources before the device is removed from the system.
3035  **/
3036 static void
3037 lpfc_scsi_free(struct lpfc_hba *phba)
3038 {
3039         struct lpfc_scsi_buf *sb, *sb_next;
3040         struct lpfc_iocbq *io, *io_next;
3041
3042         spin_lock_irq(&phba->hbalock);
3043
3044         /* Release all the lpfc_scsi_bufs maintained by this host. */
3045
3046         spin_lock(&phba->scsi_buf_list_put_lock);
3047         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3048                                  list) {
3049                 list_del(&sb->list);
3050                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3051                               sb->dma_handle);
3052                 kfree(sb);
3053                 phba->total_scsi_bufs--;
3054         }
3055         spin_unlock(&phba->scsi_buf_list_put_lock);
3056
3057         spin_lock(&phba->scsi_buf_list_get_lock);
3058         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3059                                  list) {
3060                 list_del(&sb->list);
3061                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3062                               sb->dma_handle);
3063                 kfree(sb);
3064                 phba->total_scsi_bufs--;
3065         }
3066         spin_unlock(&phba->scsi_buf_list_get_lock);
3067
3068         /* Release all the lpfc_iocbq entries maintained by this host. */
3069         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3070                 list_del(&io->list);
3071                 kfree(io);
3072                 phba->total_iocbq_bufs--;
3073         }
3074
3075         spin_unlock_irq(&phba->hbalock);
3076 }
3077
3078 /**
3079  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3080  * @phba: pointer to lpfc hba data structure.
3081  *
3082  * This routine first calculates the sizes of the current els and allocated
3083  * scsi sgl lists, and then goes through all sgls to updates the physical
3084  * XRIs assigned due to port function reset. During port initialization, the
3085  * current els and allocated scsi sgl lists are 0s.
3086  *
3087  * Return codes
3088  *   0 - successful (for now, it always returns 0)
3089  **/
3090 int
3091 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3092 {
3093         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3094         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3095         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3096         LIST_HEAD(els_sgl_list);
3097         LIST_HEAD(scsi_sgl_list);
3098         int rc;
3099         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3100
3101         /*
3102          * update on pci function's els xri-sgl list
3103          */
3104         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3105         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3106                 /* els xri-sgl expanded */
3107                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3108                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3109                                 "3157 ELS xri-sgl count increased from "
3110                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3111                                 els_xri_cnt);
3112                 /* allocate the additional els sgls */
3113                 for (i = 0; i < xri_cnt; i++) {
3114                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3115                                              GFP_KERNEL);
3116                         if (sglq_entry == NULL) {
3117                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3118                                                 "2562 Failure to allocate an "
3119                                                 "ELS sgl entry:%d\n", i);
3120                                 rc = -ENOMEM;
3121                                 goto out_free_mem;
3122                         }
3123                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3124                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3125                                                            &sglq_entry->phys);
3126                         if (sglq_entry->virt == NULL) {
3127                                 kfree(sglq_entry);
3128                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3129                                                 "2563 Failure to allocate an "
3130                                                 "ELS mbuf:%d\n", i);
3131                                 rc = -ENOMEM;
3132                                 goto out_free_mem;
3133                         }
3134                         sglq_entry->sgl = sglq_entry->virt;
3135                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3136                         sglq_entry->state = SGL_FREED;
3137                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3138                 }
3139                 spin_lock_irq(&phba->hbalock);
3140                 spin_lock(&pring->ring_lock);
3141                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3142                 spin_unlock(&pring->ring_lock);
3143                 spin_unlock_irq(&phba->hbalock);
3144         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3145                 /* els xri-sgl shrinked */
3146                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3147                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3148                                 "3158 ELS xri-sgl count decreased from "
3149                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3150                                 els_xri_cnt);
3151                 spin_lock_irq(&phba->hbalock);
3152                 spin_lock(&pring->ring_lock);
3153                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3154                 spin_unlock(&pring->ring_lock);
3155                 spin_unlock_irq(&phba->hbalock);
3156                 /* release extra els sgls from list */
3157                 for (i = 0; i < xri_cnt; i++) {
3158                         list_remove_head(&els_sgl_list,
3159                                          sglq_entry, struct lpfc_sglq, list);
3160                         if (sglq_entry) {
3161                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3162                                                sglq_entry->phys);
3163                                 kfree(sglq_entry);
3164                         }
3165                 }
3166                 spin_lock_irq(&phba->hbalock);
3167                 spin_lock(&pring->ring_lock);
3168                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3169                 spin_unlock(&pring->ring_lock);
3170                 spin_unlock_irq(&phba->hbalock);
3171         } else
3172                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3173                                 "3163 ELS xri-sgl count unchanged: %d\n",
3174                                 els_xri_cnt);
3175         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3176
3177         /* update xris to els sgls on the list */
3178         sglq_entry = NULL;
3179         sglq_entry_next = NULL;
3180         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3181                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3182                 lxri = lpfc_sli4_next_xritag(phba);
3183                 if (lxri == NO_XRI) {
3184                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3185                                         "2400 Failed to allocate xri for "
3186                                         "ELS sgl\n");
3187                         rc = -ENOMEM;
3188                         goto out_free_mem;
3189                 }
3190                 sglq_entry->sli4_lxritag = lxri;
3191                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3192         }
3193
3194         /*
3195          * update on pci function's allocated scsi xri-sgl list
3196          */
3197         phba->total_scsi_bufs = 0;
3198
3199         /* maximum number of xris available for scsi buffers */
3200         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3201                                       els_xri_cnt;
3202
3203         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3204                         "2401 Current allocated SCSI xri-sgl count:%d, "
3205                         "maximum  SCSI xri count:%d\n",
3206                         phba->sli4_hba.scsi_xri_cnt,
3207                         phba->sli4_hba.scsi_xri_max);
3208
3209         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3210         spin_lock(&phba->scsi_buf_list_put_lock);
3211         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3212         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3213         spin_unlock(&phba->scsi_buf_list_put_lock);
3214         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3215
3216         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3217                 /* max scsi xri shrinked below the allocated scsi buffers */
3218                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3219                                         phba->sli4_hba.scsi_xri_max;
3220                 /* release the extra allocated scsi buffers */
3221                 for (i = 0; i < scsi_xri_cnt; i++) {
3222                         list_remove_head(&scsi_sgl_list, psb,
3223                                          struct lpfc_scsi_buf, list);
3224                         if (psb) {
3225                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3226                                               psb->data, psb->dma_handle);
3227                                 kfree(psb);
3228                         }
3229                 }
3230                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3231                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3232                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3233         }
3234
3235         /* update xris associated to remaining allocated scsi buffers */
3236         psb = NULL;
3237         psb_next = NULL;
3238         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3239                 lxri = lpfc_sli4_next_xritag(phba);
3240                 if (lxri == NO_XRI) {
3241                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3242                                         "2560 Failed to allocate xri for "
3243                                         "scsi buffer\n");
3244                         rc = -ENOMEM;
3245                         goto out_free_mem;
3246                 }
3247                 psb->cur_iocbq.sli4_lxritag = lxri;
3248                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3249         }
3250         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3251         spin_lock(&phba->scsi_buf_list_put_lock);
3252         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3253         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3254         spin_unlock(&phba->scsi_buf_list_put_lock);
3255         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3256
3257         return 0;
3258
3259 out_free_mem:
3260         lpfc_free_els_sgl_list(phba);
3261         lpfc_scsi_free(phba);
3262         return rc;
3263 }
3264
3265 /**
3266  * lpfc_create_port - Create an FC port
3267  * @phba: pointer to lpfc hba data structure.
3268  * @instance: a unique integer ID to this FC port.
3269  * @dev: pointer to the device data structure.
3270  *
3271  * This routine creates a FC port for the upper layer protocol. The FC port
3272  * can be created on top of either a physical port or a virtual port provided
3273  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3274  * and associates the FC port created before adding the shost into the SCSI
3275  * layer.
3276  *
3277  * Return codes
3278  *   @vport - pointer to the virtual N_Port data structure.
3279  *   NULL - port create failed.
3280  **/
3281 struct lpfc_vport *
3282 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3283 {
3284         struct lpfc_vport *vport;
3285         struct Scsi_Host  *shost;
3286         int error = 0;
3287
3288         if (dev != &phba->pcidev->dev) {
3289                 shost = scsi_host_alloc(&lpfc_vport_template,
3290                                         sizeof(struct lpfc_vport));
3291         } else {
3292                 if (phba->sli_rev == LPFC_SLI_REV4)
3293                         shost = scsi_host_alloc(&lpfc_template,
3294                                         sizeof(struct lpfc_vport));
3295                 else
3296                         shost = scsi_host_alloc(&lpfc_template_s3,
3297                                         sizeof(struct lpfc_vport));
3298         }
3299         if (!shost)
3300                 goto out;
3301
3302         vport = (struct lpfc_vport *) shost->hostdata;
3303         vport->phba = phba;
3304         vport->load_flag |= FC_LOADING;
3305         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3306         vport->fc_rscn_flush = 0;
3307
3308         lpfc_get_vport_cfgparam(vport);
3309         shost->unique_id = instance;
3310         shost->max_id = LPFC_MAX_TARGET;
3311         shost->max_lun = vport->cfg_max_luns;
3312         shost->this_id = -1;
3313         shost->max_cmd_len = 16;
3314         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3315         if (phba->sli_rev == LPFC_SLI_REV4) {
3316                 shost->dma_boundary =
3317                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3318                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3319         }
3320
3321         /*
3322          * Set initial can_queue value since 0 is no longer supported and
3323          * scsi_add_host will fail. This will be adjusted later based on the
3324          * max xri value determined in hba setup.
3325          */
3326         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3327         if (dev != &phba->pcidev->dev) {
3328                 shost->transportt = lpfc_vport_transport_template;
3329                 vport->port_type = LPFC_NPIV_PORT;
3330         } else {
3331                 shost->transportt = lpfc_transport_template;
3332                 vport->port_type = LPFC_PHYSICAL_PORT;
3333         }
3334
3335         /* Initialize all internally managed lists. */
3336         INIT_LIST_HEAD(&vport->fc_nodes);
3337         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3338         spin_lock_init(&vport->work_port_lock);
3339
3340         init_timer(&vport->fc_disctmo);
3341         vport->fc_disctmo.function = lpfc_disc_timeout;
3342         vport->fc_disctmo.data = (unsigned long)vport;
3343
3344         init_timer(&vport->fc_fdmitmo);
3345         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3346         vport->fc_fdmitmo.data = (unsigned long)vport;
3347
3348         init_timer(&vport->els_tmofunc);
3349         vport->els_tmofunc.function = lpfc_els_timeout;
3350         vport->els_tmofunc.data = (unsigned long)vport;
3351
3352         init_timer(&vport->delayed_disc_tmo);
3353         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3354         vport->delayed_disc_tmo.data = (unsigned long)vport;
3355
3356         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3357         if (error)
3358                 goto out_put_shost;
3359
3360         spin_lock_irq(&phba->hbalock);
3361         list_add_tail(&vport->listentry, &phba->port_list);
3362         spin_unlock_irq(&phba->hbalock);
3363         return vport;
3364
3365 out_put_shost:
3366         scsi_host_put(shost);
3367 out:
3368         return NULL;
3369 }
3370
3371 /**
3372  * destroy_port -  destroy an FC port
3373  * @vport: pointer to an lpfc virtual N_Port data structure.
3374  *
3375  * This routine destroys a FC port from the upper layer protocol. All the
3376  * resources associated with the port are released.
3377  **/
3378 void
3379 destroy_port(struct lpfc_vport *vport)
3380 {
3381         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3382         struct lpfc_hba  *phba = vport->phba;
3383
3384         lpfc_debugfs_terminate(vport);
3385         fc_remove_host(shost);
3386         scsi_remove_host(shost);
3387
3388         spin_lock_irq(&phba->hbalock);
3389         list_del_init(&vport->listentry);
3390         spin_unlock_irq(&phba->hbalock);
3391
3392         lpfc_cleanup(vport);
3393         return;
3394 }
3395
3396 /**
3397  * lpfc_get_instance - Get a unique integer ID
3398  *
3399  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3400  * uses the kernel idr facility to perform the task.
3401  *
3402  * Return codes:
3403  *   instance - a unique integer ID allocated as the new instance.
3404  *   -1 - lpfc get instance failed.
3405  **/
3406 int
3407 lpfc_get_instance(void)
3408 {
3409         int ret;
3410
3411         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3412         return ret < 0 ? -1 : ret;
3413 }
3414
3415 /**
3416  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3417  * @shost: pointer to SCSI host data structure.
3418  * @time: elapsed time of the scan in jiffies.
3419  *
3420  * This routine is called by the SCSI layer with a SCSI host to determine
3421  * whether the scan host is finished.
3422  *
3423  * Note: there is no scan_start function as adapter initialization will have
3424  * asynchronously kicked off the link initialization.
3425  *
3426  * Return codes
3427  *   0 - SCSI host scan is not over yet.
3428  *   1 - SCSI host scan is over.
3429  **/
3430 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3431 {
3432         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3433         struct lpfc_hba   *phba = vport->phba;
3434         int stat = 0;
3435
3436         spin_lock_irq(shost->host_lock);
3437
3438         if (vport->load_flag & FC_UNLOADING) {
3439                 stat = 1;
3440                 goto finished;
3441         }
3442         if (time >= msecs_to_jiffies(30 * 1000)) {
3443                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3444                                 "0461 Scanning longer than 30 "
3445                                 "seconds.  Continuing initialization\n");
3446                 stat = 1;
3447                 goto finished;
3448         }
3449         if (time >= msecs_to_jiffies(15 * 1000) &&
3450             phba->link_state <= LPFC_LINK_DOWN) {
3451                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3452                                 "0465 Link down longer than 15 "
3453                                 "seconds.  Continuing initialization\n");
3454                 stat = 1;
3455                 goto finished;
3456         }
3457
3458         if (vport->port_state != LPFC_VPORT_READY)
3459                 goto finished;
3460         if (vport->num_disc_nodes || vport->fc_prli_sent)
3461                 goto finished;
3462         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3463                 goto finished;
3464         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3465                 goto finished;
3466
3467         stat = 1;
3468
3469 finished:
3470         spin_unlock_irq(shost->host_lock);
3471         return stat;
3472 }
3473
3474 /**
3475  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3476  * @shost: pointer to SCSI host data structure.
3477  *
3478  * This routine initializes a given SCSI host attributes on a FC port. The
3479  * SCSI host can be either on top of a physical port or a virtual port.
3480  **/
3481 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3482 {
3483         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3484         struct lpfc_hba   *phba = vport->phba;
3485         /*
3486          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3487          */
3488
3489         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3490         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3491         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3492
3493         memset(fc_host_supported_fc4s(shost), 0,
3494                sizeof(fc_host_supported_fc4s(shost)));
3495         fc_host_supported_fc4s(shost)[2] = 1;
3496         fc_host_supported_fc4s(shost)[7] = 1;
3497
3498         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3499                                  sizeof fc_host_symbolic_name(shost));
3500
3501         fc_host_supported_speeds(shost) = 0;
3502         if (phba->lmt & LMT_32Gb)
3503                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3504         if (phba->lmt & LMT_16Gb)
3505                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3506         if (phba->lmt & LMT_10Gb)
3507                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3508         if (phba->lmt & LMT_8Gb)
3509                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3510         if (phba->lmt & LMT_4Gb)
3511                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3512         if (phba->lmt & LMT_2Gb)
3513                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3514         if (phba->lmt & LMT_1Gb)
3515                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3516
3517         fc_host_maxframe_size(shost) =
3518                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3519                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3520
3521         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3522
3523         /* This value is also unchanging */
3524         memset(fc_host_active_fc4s(shost), 0,
3525                sizeof(fc_host_active_fc4s(shost)));
3526         fc_host_active_fc4s(shost)[2] = 1;
3527         fc_host_active_fc4s(shost)[7] = 1;
3528
3529         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3530         spin_lock_irq(shost->host_lock);
3531         vport->load_flag &= ~FC_LOADING;
3532         spin_unlock_irq(shost->host_lock);
3533 }
3534
3535 /**
3536  * lpfc_stop_port_s3 - Stop SLI3 device port
3537  * @phba: pointer to lpfc hba data structure.
3538  *
3539  * This routine is invoked to stop an SLI3 device port, it stops the device
3540  * from generating interrupts and stops the device driver's timers for the
3541  * device.
3542  **/
3543 static void
3544 lpfc_stop_port_s3(struct lpfc_hba *phba)
3545 {
3546         /* Clear all interrupt enable conditions */
3547         writel(0, phba->HCregaddr);
3548         readl(phba->HCregaddr); /* flush */
3549         /* Clear all pending interrupts */
3550         writel(0xffffffff, phba->HAregaddr);
3551         readl(phba->HAregaddr); /* flush */
3552
3553         /* Reset some HBA SLI setup states */
3554         lpfc_stop_hba_timers(phba);
3555         phba->pport->work_port_events = 0;
3556 }
3557
3558 /**
3559  * lpfc_stop_port_s4 - Stop SLI4 device port
3560  * @phba: pointer to lpfc hba data structure.
3561  *
3562  * This routine is invoked to stop an SLI4 device port, it stops the device
3563  * from generating interrupts and stops the device driver's timers for the
3564  * device.
3565  **/
3566 static void
3567 lpfc_stop_port_s4(struct lpfc_hba *phba)
3568 {
3569         /* Reset some HBA SLI4 setup states */
3570         lpfc_stop_hba_timers(phba);
3571         phba->pport->work_port_events = 0;
3572         phba->sli4_hba.intr_enable = 0;
3573 }
3574
3575 /**
3576  * lpfc_stop_port - Wrapper function for stopping hba port
3577  * @phba: Pointer to HBA context object.
3578  *
3579  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3580  * the API jump table function pointer from the lpfc_hba struct.
3581  **/
3582 void
3583 lpfc_stop_port(struct lpfc_hba *phba)
3584 {
3585         phba->lpfc_stop_port(phba);
3586 }
3587
3588 /**
3589  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3590  * @phba: Pointer to hba for which this call is being executed.
3591  *
3592  * This routine starts the timer waiting for the FCF rediscovery to complete.
3593  **/
3594 void
3595 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3596 {
3597         unsigned long fcf_redisc_wait_tmo =
3598                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3599         /* Start fcf rediscovery wait period timer */
3600         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3601         spin_lock_irq(&phba->hbalock);
3602         /* Allow action to new fcf asynchronous event */
3603         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3604         /* Mark the FCF rediscovery pending state */
3605         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3606         spin_unlock_irq(&phba->hbalock);
3607 }
3608
3609 /**
3610  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3611  * @ptr: Map to lpfc_hba data structure pointer.
3612  *
3613  * This routine is invoked when waiting for FCF table rediscover has been
3614  * timed out. If new FCF record(s) has (have) been discovered during the
3615  * wait period, a new FCF event shall be added to the FCOE async event
3616  * list, and then worker thread shall be waked up for processing from the
3617  * worker thread context.
3618  **/
3619 static void
3620 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3621 {
3622         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3623
3624         /* Don't send FCF rediscovery event if timer cancelled */
3625         spin_lock_irq(&phba->hbalock);
3626         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3627                 spin_unlock_irq(&phba->hbalock);
3628                 return;
3629         }
3630         /* Clear FCF rediscovery timer pending flag */
3631         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3632         /* FCF rediscovery event to worker thread */
3633         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3634         spin_unlock_irq(&phba->hbalock);
3635         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3636                         "2776 FCF rediscover quiescent timer expired\n");
3637         /* wake up worker thread */
3638         lpfc_worker_wake_up(phba);
3639 }
3640
3641 /**
3642  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3643  * @phba: pointer to lpfc hba data structure.
3644  * @acqe_link: pointer to the async link completion queue entry.
3645  *
3646  * This routine is to parse the SLI4 link-attention link fault code and
3647  * translate it into the base driver's read link attention mailbox command
3648  * status.
3649  *
3650  * Return: Link-attention status in terms of base driver's coding.
3651  **/
3652 static uint16_t
3653 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3654                            struct lpfc_acqe_link *acqe_link)
3655 {
3656         uint16_t latt_fault;
3657
3658         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3659         case LPFC_ASYNC_LINK_FAULT_NONE:
3660         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3661         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3662                 latt_fault = 0;
3663                 break;
3664         default:
3665                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3666                                 "0398 Invalid link fault code: x%x\n",
3667                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3668                 latt_fault = MBXERR_ERROR;
3669                 break;
3670         }
3671         return latt_fault;
3672 }
3673
3674 /**
3675  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3676  * @phba: pointer to lpfc hba data structure.
3677  * @acqe_link: pointer to the async link completion queue entry.
3678  *
3679  * This routine is to parse the SLI4 link attention type and translate it
3680  * into the base driver's link attention type coding.
3681  *
3682  * Return: Link attention type in terms of base driver's coding.
3683  **/
3684 static uint8_t
3685 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3686                           struct lpfc_acqe_link *acqe_link)
3687 {
3688         uint8_t att_type;
3689
3690         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3691         case LPFC_ASYNC_LINK_STATUS_DOWN:
3692         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3693                 att_type = LPFC_ATT_LINK_DOWN;
3694                 break;
3695         case LPFC_ASYNC_LINK_STATUS_UP:
3696                 /* Ignore physical link up events - wait for logical link up */
3697                 att_type = LPFC_ATT_RESERVED;
3698                 break;
3699         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3700                 att_type = LPFC_ATT_LINK_UP;
3701                 break;
3702         default:
3703                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3704                                 "0399 Invalid link attention type: x%x\n",
3705                                 bf_get(lpfc_acqe_link_status, acqe_link));
3706                 att_type = LPFC_ATT_RESERVED;
3707                 break;
3708         }
3709         return att_type;
3710 }
3711
3712 /**
3713  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3714  * @phba: pointer to lpfc hba data structure.
3715  * @acqe_link: pointer to the async link completion queue entry.
3716  *
3717  * This routine is to parse the SLI4 link-attention link speed and translate
3718  * it into the base driver's link-attention link speed coding.
3719  *
3720  * Return: Link-attention link speed in terms of base driver's coding.
3721  **/
3722 static uint8_t
3723 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3724                                 struct lpfc_acqe_link *acqe_link)
3725 {
3726         uint8_t link_speed;
3727
3728         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3729         case LPFC_ASYNC_LINK_SPEED_ZERO:
3730         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3731         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3732                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3733                 break;
3734         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3735                 link_speed = LPFC_LINK_SPEED_1GHZ;
3736                 break;
3737         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3738                 link_speed = LPFC_LINK_SPEED_10GHZ;
3739                 break;
3740         case LPFC_ASYNC_LINK_SPEED_20GBPS:
3741         case LPFC_ASYNC_LINK_SPEED_25GBPS:
3742         case LPFC_ASYNC_LINK_SPEED_40GBPS:
3743                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3744                 break;
3745         default:
3746                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3747                                 "0483 Invalid link-attention link speed: x%x\n",
3748                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3749                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3750                 break;
3751         }
3752         return link_speed;
3753 }
3754
3755 /**
3756  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3757  * @phba: pointer to lpfc hba data structure.
3758  *
3759  * This routine is to get an SLI3 FC port's link speed in Mbps.
3760  *
3761  * Return: link speed in terms of Mbps.
3762  **/
3763 uint32_t
3764 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3765 {
3766         uint32_t link_speed;
3767
3768         if (!lpfc_is_link_up(phba))
3769                 return 0;
3770
3771         switch (phba->fc_linkspeed) {
3772         case LPFC_LINK_SPEED_1GHZ:
3773                 link_speed = 1000;
3774                 break;
3775         case LPFC_LINK_SPEED_2GHZ:
3776                 link_speed = 2000;
3777                 break;
3778         case LPFC_LINK_SPEED_4GHZ:
3779                 link_speed = 4000;
3780                 break;
3781         case LPFC_LINK_SPEED_8GHZ:
3782                 link_speed = 8000;
3783                 break;
3784         case LPFC_LINK_SPEED_10GHZ:
3785                 link_speed = 10000;
3786                 break;
3787         case LPFC_LINK_SPEED_16GHZ:
3788                 link_speed = 16000;
3789                 break;
3790         default:
3791                 link_speed = 0;
3792         }
3793         return link_speed;
3794 }
3795
3796 /**
3797  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3798  * @phba: pointer to lpfc hba data structure.
3799  * @evt_code: asynchronous event code.
3800  * @speed_code: asynchronous event link speed code.
3801  *
3802  * This routine is to parse the giving SLI4 async event link speed code into
3803  * value of Mbps for the link speed.
3804  *
3805  * Return: link speed in terms of Mbps.
3806  **/
3807 static uint32_t
3808 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3809                            uint8_t speed_code)
3810 {
3811         uint32_t port_speed;
3812
3813         switch (evt_code) {
3814         case LPFC_TRAILER_CODE_LINK:
3815                 switch (speed_code) {
3816                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3817                         port_speed = 0;
3818                         break;
3819                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3820                         port_speed = 10;
3821                         break;
3822                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3823                         port_speed = 100;
3824                         break;
3825                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3826                         port_speed = 1000;
3827                         break;
3828                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3829                         port_speed = 10000;
3830                         break;
3831                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3832                         port_speed = 20000;
3833                         break;
3834                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3835                         port_speed = 25000;
3836                         break;
3837                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3838                         port_speed = 40000;
3839                         break;
3840                 default:
3841                         port_speed = 0;
3842                 }
3843                 break;
3844         case LPFC_TRAILER_CODE_FC:
3845                 switch (speed_code) {
3846                 case LPFC_FC_LA_SPEED_UNKNOWN:
3847                         port_speed = 0;
3848                         break;
3849                 case LPFC_FC_LA_SPEED_1G:
3850                         port_speed = 1000;
3851                         break;
3852                 case LPFC_FC_LA_SPEED_2G:
3853                         port_speed = 2000;
3854                         break;
3855                 case LPFC_FC_LA_SPEED_4G:
3856                         port_speed = 4000;
3857                         break;
3858                 case LPFC_FC_LA_SPEED_8G:
3859                         port_speed = 8000;
3860                         break;
3861                 case LPFC_FC_LA_SPEED_10G:
3862                         port_speed = 10000;
3863                         break;
3864                 case LPFC_FC_LA_SPEED_16G:
3865                         port_speed = 16000;
3866                         break;
3867                 case LPFC_FC_LA_SPEED_32G:
3868                         port_speed = 32000;
3869                         break;
3870                 default:
3871                         port_speed = 0;
3872                 }
3873                 break;
3874         default:
3875                 port_speed = 0;
3876         }
3877         return port_speed;
3878 }
3879
3880 /**
3881  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3882  * @phba: pointer to lpfc hba data structure.
3883  * @acqe_link: pointer to the async link completion queue entry.
3884  *
3885  * This routine is to handle the SLI4 asynchronous FCoE link event.
3886  **/
3887 static void
3888 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3889                          struct lpfc_acqe_link *acqe_link)
3890 {
3891         struct lpfc_dmabuf *mp;
3892         LPFC_MBOXQ_t *pmb;
3893         MAILBOX_t *mb;
3894         struct lpfc_mbx_read_top *la;
3895         uint8_t att_type;
3896         int rc;
3897
3898         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3899         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3900                 return;
3901         phba->fcoe_eventtag = acqe_link->event_tag;
3902         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3903         if (!pmb) {
3904                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3905                                 "0395 The mboxq allocation failed\n");
3906                 return;
3907         }
3908         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3909         if (!mp) {
3910                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3911                                 "0396 The lpfc_dmabuf allocation failed\n");
3912                 goto out_free_pmb;
3913         }
3914         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3915         if (!mp->virt) {
3916                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3917                                 "0397 The mbuf allocation failed\n");
3918                 goto out_free_dmabuf;
3919         }
3920
3921         /* Cleanup any outstanding ELS commands */
3922         lpfc_els_flush_all_cmd(phba);
3923
3924         /* Block ELS IOCBs until we have done process link event */
3925         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3926
3927         /* Update link event statistics */
3928         phba->sli.slistat.link_event++;
3929
3930         /* Create lpfc_handle_latt mailbox command from link ACQE */
3931         lpfc_read_topology(phba, pmb, mp);
3932         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3933         pmb->vport = phba->pport;
3934
3935         /* Keep the link status for extra SLI4 state machine reference */
3936         phba->sli4_hba.link_state.speed =
3937                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3938                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3939         phba->sli4_hba.link_state.duplex =
3940                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3941         phba->sli4_hba.link_state.status =
3942                                 bf_get(lpfc_acqe_link_status, acqe_link);
3943         phba->sli4_hba.link_state.type =
3944                                 bf_get(lpfc_acqe_link_type, acqe_link);
3945         phba->sli4_hba.link_state.number =
3946                                 bf_get(lpfc_acqe_link_number, acqe_link);
3947         phba->sli4_hba.link_state.fault =
3948                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3949         phba->sli4_hba.link_state.logical_speed =
3950                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3951
3952         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3953                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3954                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3955                         "Logical speed:%dMbps Fault:%d\n",
3956                         phba->sli4_hba.link_state.speed,
3957                         phba->sli4_hba.link_state.topology,
3958                         phba->sli4_hba.link_state.status,
3959                         phba->sli4_hba.link_state.type,
3960                         phba->sli4_hba.link_state.number,
3961                         phba->sli4_hba.link_state.logical_speed,
3962                         phba->sli4_hba.link_state.fault);
3963         /*
3964          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3965          * topology info. Note: Optional for non FC-AL ports.
3966          */
3967         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3968                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3969                 if (rc == MBX_NOT_FINISHED)
3970                         goto out_free_dmabuf;
3971                 return;
3972         }
3973         /*
3974          * For FCoE Mode: fill in all the topology information we need and call
3975          * the READ_TOPOLOGY completion routine to continue without actually
3976          * sending the READ_TOPOLOGY mailbox command to the port.
3977          */
3978         /* Parse and translate status field */
3979         mb = &pmb->u.mb;
3980         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3981
3982         /* Parse and translate link attention fields */
3983         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3984         la->eventTag = acqe_link->event_tag;
3985         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3986         bf_set(lpfc_mbx_read_top_link_spd, la,
3987                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3988
3989         /* Fake the the following irrelvant fields */
3990         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3991         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3992         bf_set(lpfc_mbx_read_top_il, la, 0);
3993         bf_set(lpfc_mbx_read_top_pb, la, 0);
3994         bf_set(lpfc_mbx_read_top_fa, la, 0);
3995         bf_set(lpfc_mbx_read_top_mm, la, 0);
3996
3997         /* Invoke the lpfc_handle_latt mailbox command callback function */
3998         lpfc_mbx_cmpl_read_topology(phba, pmb);
3999
4000         return;
4001
4002 out_free_dmabuf:
4003         kfree(mp);
4004 out_free_pmb:
4005         mempool_free(pmb, phba->mbox_mem_pool);
4006 }
4007
4008 /**
4009  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4010  * @phba: pointer to lpfc hba data structure.
4011  * @acqe_fc: pointer to the async fc completion queue entry.
4012  *
4013  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4014  * that the event was received and then issue a read_topology mailbox command so
4015  * that the rest of the driver will treat it the same as SLI3.
4016  **/
4017 static void
4018 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4019 {
4020         struct lpfc_dmabuf *mp;
4021         LPFC_MBOXQ_t *pmb;
4022         int rc;
4023
4024         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4025             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4026                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4027                                 "2895 Non FC link Event detected.(%d)\n",
4028                                 bf_get(lpfc_trailer_type, acqe_fc));
4029                 return;
4030         }
4031         /* Keep the link status for extra SLI4 state machine reference */
4032         phba->sli4_hba.link_state.speed =
4033                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4034                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4035         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4036         phba->sli4_hba.link_state.topology =
4037                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4038         phba->sli4_hba.link_state.status =
4039                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4040         phba->sli4_hba.link_state.type =
4041                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4042         phba->sli4_hba.link_state.number =
4043                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4044         phba->sli4_hba.link_state.fault =
4045                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4046         phba->sli4_hba.link_state.logical_speed =
4047                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4048         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4049                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4050                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4051                         "%dMbps Fault:%d\n",
4052                         phba->sli4_hba.link_state.speed,
4053                         phba->sli4_hba.link_state.topology,
4054                         phba->sli4_hba.link_state.status,
4055                         phba->sli4_hba.link_state.type,
4056                         phba->sli4_hba.link_state.number,
4057                         phba->sli4_hba.link_state.logical_speed,
4058                         phba->sli4_hba.link_state.fault);
4059         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4060         if (!pmb) {
4061                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4062                                 "2897 The mboxq allocation failed\n");
4063                 return;
4064         }
4065         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4066         if (!mp) {
4067                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4068                                 "2898 The lpfc_dmabuf allocation failed\n");
4069                 goto out_free_pmb;
4070         }
4071         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4072         if (!mp->virt) {
4073                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4074                                 "2899 The mbuf allocation failed\n");
4075                 goto out_free_dmabuf;
4076         }
4077
4078         /* Cleanup any outstanding ELS commands */
4079         lpfc_els_flush_all_cmd(phba);
4080
4081         /* Block ELS IOCBs until we have done process link event */
4082         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4083
4084         /* Update link event statistics */
4085         phba->sli.slistat.link_event++;
4086
4087         /* Create lpfc_handle_latt mailbox command from link ACQE */
4088         lpfc_read_topology(phba, pmb, mp);
4089         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4090         pmb->vport = phba->pport;
4091
4092         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4093         if (rc == MBX_NOT_FINISHED)
4094                 goto out_free_dmabuf;
4095         return;
4096
4097 out_free_dmabuf:
4098         kfree(mp);
4099 out_free_pmb:
4100         mempool_free(pmb, phba->mbox_mem_pool);
4101 }
4102
4103 /**
4104  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4105  * @phba: pointer to lpfc hba data structure.
4106  * @acqe_fc: pointer to the async SLI completion queue entry.
4107  *
4108  * This routine is to handle the SLI4 asynchronous SLI events.
4109  **/
4110 static void
4111 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4112 {
4113         char port_name;
4114         char message[128];
4115         uint8_t status;
4116         uint8_t evt_type;
4117         struct temp_event temp_event_data;
4118         struct lpfc_acqe_misconfigured_event *misconfigured;
4119         struct Scsi_Host  *shost;
4120
4121         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4122
4123         /* Special case Lancer */
4124         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4125                  LPFC_SLI_INTF_IF_TYPE_2) {
4126                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4127                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4128                                 "x%08x SLI Event Type:%d\n",
4129                                 acqe_sli->event_data1, acqe_sli->event_data2,
4130                                 evt_type);
4131                 return;
4132         }
4133
4134         port_name = phba->Port[0];
4135         if (port_name == 0x00)
4136                 port_name = '?'; /* get port name is empty */
4137
4138         switch (evt_type) {
4139         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4140                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4141                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4142                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4143
4144                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4145                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4146                                 acqe_sli->event_data1, port_name);
4147
4148                 shost = lpfc_shost_from_vport(phba->pport);
4149                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4150                                           sizeof(temp_event_data),
4151                                           (char *)&temp_event_data,
4152                                           SCSI_NL_VID_TYPE_PCI
4153                                           | PCI_VENDOR_ID_EMULEX);
4154                 break;
4155         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4156                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4157                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4158                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4159
4160                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4161                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4162                                 acqe_sli->event_data1, port_name);
4163
4164                 shost = lpfc_shost_from_vport(phba->pport);
4165                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4166                                           sizeof(temp_event_data),
4167                                           (char *)&temp_event_data,
4168                                           SCSI_NL_VID_TYPE_PCI
4169                                           | PCI_VENDOR_ID_EMULEX);
4170                 break;
4171         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4172                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4173                                         &acqe_sli->event_data1;
4174
4175                 /* fetch the status for this port */
4176                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4177                 case LPFC_LINK_NUMBER_0:
4178                         status = bf_get(lpfc_sli_misconfigured_port0,
4179                                         &misconfigured->theEvent);
4180                         break;
4181                 case LPFC_LINK_NUMBER_1:
4182                         status = bf_get(lpfc_sli_misconfigured_port1,
4183                                         &misconfigured->theEvent);
4184                         break;
4185                 case LPFC_LINK_NUMBER_2:
4186                         status = bf_get(lpfc_sli_misconfigured_port2,
4187                                         &misconfigured->theEvent);
4188                         break;
4189                 case LPFC_LINK_NUMBER_3:
4190                         status = bf_get(lpfc_sli_misconfigured_port3,
4191                                         &misconfigured->theEvent);
4192                         break;
4193                 default:
4194                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4195                         break;
4196                 }
4197
4198                 switch (status) {
4199                 case LPFC_SLI_EVENT_STATUS_VALID:
4200                         return; /* no message if the sfp is okay */
4201                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4202                         sprintf(message, "Optics faulted/incorrectly "
4203                                 "installed/not installed - Reseat optics, "
4204                                 "if issue not resolved, replace.");
4205                         break;
4206                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4207                         sprintf(message,
4208                                 "Optics of two types installed - Remove one "
4209                                 "optic or install matching pair of optics.");
4210                         break;
4211                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4212                         sprintf(message, "Incompatible optics - Replace with "
4213                                 "compatible optics for card to function.");
4214                         break;
4215                 default:
4216                         /* firmware is reporting a status we don't know about */
4217                         sprintf(message, "Unknown event status x%02x", status);
4218                         break;
4219                 }
4220
4221                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4222                                 "3176 Misconfigured Physical Port - "
4223                                 "Port Name %c %s\n", port_name, message);
4224                 break;
4225         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4226                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4227                                 "3192 Remote DPort Test Initiated - "
4228                                 "Event Data1:x%08x Event Data2: x%08x\n",
4229                                 acqe_sli->event_data1, acqe_sli->event_data2);
4230                 break;
4231         default:
4232                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4233                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4234                                 "x%08x SLI Event Type:%d\n",
4235                                 acqe_sli->event_data1, acqe_sli->event_data2,
4236                                 evt_type);
4237                 break;
4238         }
4239 }
4240
4241 /**
4242  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4243  * @vport: pointer to vport data structure.
4244  *
4245  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4246  * response to a CVL event.
4247  *
4248  * Return the pointer to the ndlp with the vport if successful, otherwise
4249  * return NULL.
4250  **/
4251 static struct lpfc_nodelist *
4252 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4253 {
4254         struct lpfc_nodelist *ndlp;
4255         struct Scsi_Host *shost;
4256         struct lpfc_hba *phba;
4257
4258         if (!vport)
4259                 return NULL;
4260         phba = vport->phba;
4261         if (!phba)
4262                 return NULL;
4263         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4264         if (!ndlp) {
4265                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4266                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4267                 if (!ndlp)
4268                         return 0;
4269                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4270                 /* Set the node type */
4271                 ndlp->nlp_type |= NLP_FABRIC;
4272                 /* Put ndlp onto node list */
4273                 lpfc_enqueue_node(vport, ndlp);
4274         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4275                 /* re-setup ndlp without removing from node list */
4276                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4277                 if (!ndlp)
4278                         return 0;
4279         }
4280         if ((phba->pport->port_state < LPFC_FLOGI) &&
4281                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4282                 return NULL;
4283         /* If virtual link is not yet instantiated ignore CVL */
4284         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4285                 && (vport->port_state != LPFC_VPORT_FAILED))
4286                 return NULL;
4287         shost = lpfc_shost_from_vport(vport);
4288         if (!shost)
4289                 return NULL;
4290         lpfc_linkdown_port(vport);
4291         lpfc_cleanup_pending_mbox(vport);
4292         spin_lock_irq(shost->host_lock);
4293         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4294         spin_unlock_irq(shost->host_lock);
4295
4296         return ndlp;
4297 }
4298
4299 /**
4300  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4301  * @vport: pointer to lpfc hba data structure.
4302  *
4303  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4304  * response to a FCF dead event.
4305  **/
4306 static void
4307 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4308 {
4309         struct lpfc_vport **vports;
4310         int i;
4311
4312         vports = lpfc_create_vport_work_array(phba);
4313         if (vports)
4314                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4315                         lpfc_sli4_perform_vport_cvl(vports[i]);
4316         lpfc_destroy_vport_work_array(phba, vports);
4317 }
4318
4319 /**
4320  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4321  * @phba: pointer to lpfc hba data structure.
4322  * @acqe_link: pointer to the async fcoe completion queue entry.
4323  *
4324  * This routine is to handle the SLI4 asynchronous fcoe event.
4325  **/
4326 static void
4327 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4328                         struct lpfc_acqe_fip *acqe_fip)
4329 {
4330         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4331         int rc;
4332         struct lpfc_vport *vport;
4333         struct lpfc_nodelist *ndlp;
4334         struct Scsi_Host  *shost;
4335         int active_vlink_present;
4336         struct lpfc_vport **vports;
4337         int i;
4338
4339         phba->fc_eventTag = acqe_fip->event_tag;
4340         phba->fcoe_eventtag = acqe_fip->event_tag;
4341         switch (event_type) {
4342         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4343         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4344                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4345                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4346                                         LOG_DISCOVERY,
4347                                         "2546 New FCF event, evt_tag:x%x, "
4348                                         "index:x%x\n",
4349                                         acqe_fip->event_tag,
4350                                         acqe_fip->index);
4351                 else
4352                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4353                                         LOG_DISCOVERY,
4354                                         "2788 FCF param modified event, "
4355                                         "evt_tag:x%x, index:x%x\n",
4356                                         acqe_fip->event_tag,
4357                                         acqe_fip->index);
4358                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4359                         /*
4360                          * During period of FCF discovery, read the FCF
4361                          * table record indexed by the event to update
4362                          * FCF roundrobin failover eligible FCF bmask.
4363                          */
4364                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4365                                         LOG_DISCOVERY,
4366                                         "2779 Read FCF (x%x) for updating "
4367                                         "roundrobin FCF failover bmask\n",
4368                                         acqe_fip->index);
4369                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4370                 }
4371
4372                 /* If the FCF discovery is in progress, do nothing. */
4373                 spin_lock_irq(&phba->hbalock);
4374                 if (phba->hba_flag & FCF_TS_INPROG) {
4375                         spin_unlock_irq(&phba->hbalock);
4376                         break;
4377                 }
4378                 /* If fast FCF failover rescan event is pending, do nothing */
4379                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4380                         spin_unlock_irq(&phba->hbalock);
4381                         break;
4382                 }
4383
4384                 /* If the FCF has been in discovered state, do nothing. */
4385                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4386                         spin_unlock_irq(&phba->hbalock);
4387                         break;
4388                 }
4389                 spin_unlock_irq(&phba->hbalock);
4390
4391                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4392                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4393                                 "2770 Start FCF table scan per async FCF "
4394                                 "event, evt_tag:x%x, index:x%x\n",
4395                                 acqe_fip->event_tag, acqe_fip->index);
4396                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4397                                                      LPFC_FCOE_FCF_GET_FIRST);
4398                 if (rc)
4399                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4400                                         "2547 Issue FCF scan read FCF mailbox "
4401                                         "command failed (x%x)\n", rc);
4402                 break;
4403
4404         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4405                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4406                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4407                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4408                         acqe_fip->event_tag);
4409                 break;
4410
4411         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4412                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4413                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4414                         "2549 FCF (x%x) disconnected from network, "
4415                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4416                 /*
4417                  * If we are in the middle of FCF failover process, clear
4418                  * the corresponding FCF bit in the roundrobin bitmap.
4419                  */
4420                 spin_lock_irq(&phba->hbalock);
4421                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4422                         spin_unlock_irq(&phba->hbalock);
4423                         /* Update FLOGI FCF failover eligible FCF bmask */
4424                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4425                         break;
4426                 }
4427                 spin_unlock_irq(&phba->hbalock);
4428
4429                 /* If the event is not for currently used fcf do nothing */
4430                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4431                         break;
4432
4433                 /*
4434                  * Otherwise, request the port to rediscover the entire FCF
4435                  * table for a fast recovery from case that the current FCF
4436                  * is no longer valid as we are not in the middle of FCF
4437                  * failover process already.
4438                  */
4439                 spin_lock_irq(&phba->hbalock);
4440                 /* Mark the fast failover process in progress */
4441                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4442                 spin_unlock_irq(&phba->hbalock);
4443
4444                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4445                                 "2771 Start FCF fast failover process due to "
4446                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4447                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4448                 rc = lpfc_sli4_redisc_fcf_table(phba);
4449                 if (rc) {
4450                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4451                                         LOG_DISCOVERY,
4452                                         "2772 Issue FCF rediscover mabilbox "
4453                                         "command failed, fail through to FCF "
4454                                         "dead event\n");
4455                         spin_lock_irq(&phba->hbalock);
4456                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4457                         spin_unlock_irq(&phba->hbalock);
4458                         /*
4459                          * Last resort will fail over by treating this
4460                          * as a link down to FCF registration.
4461                          */
4462                         lpfc_sli4_fcf_dead_failthrough(phba);
4463                 } else {
4464                         /* Reset FCF roundrobin bmask for new discovery */
4465                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4466                         /*
4467                          * Handling fast FCF failover to a DEAD FCF event is
4468                          * considered equalivant to receiving CVL to all vports.
4469                          */
4470                         lpfc_sli4_perform_all_vport_cvl(phba);
4471                 }
4472                 break;
4473         case LPFC_FIP_EVENT_TYPE_CVL:
4474                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4475                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4476                         "2718 Clear Virtual Link Received for VPI 0x%x"
4477                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4478
4479                 vport = lpfc_find_vport_by_vpid(phba,
4480                                                 acqe_fip->index);
4481                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4482                 if (!ndlp)
4483                         break;
4484                 active_vlink_present = 0;
4485
4486                 vports = lpfc_create_vport_work_array(phba);
4487                 if (vports) {
4488                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4489                                         i++) {
4490                                 if ((!(vports[i]->fc_flag &
4491                                         FC_VPORT_CVL_RCVD)) &&
4492                                         (vports[i]->port_state > LPFC_FDISC)) {
4493                                         active_vlink_present = 1;
4494                                         break;
4495                                 }
4496                         }
4497                         lpfc_destroy_vport_work_array(phba, vports);
4498                 }
4499
4500                 /*
4501                  * Don't re-instantiate if vport is marked for deletion.
4502                  * If we are here first then vport_delete is going to wait
4503                  * for discovery to complete.
4504                  */
4505                 if (!(vport->load_flag & FC_UNLOADING) &&
4506                                         active_vlink_present) {
4507                         /*
4508                          * If there are other active VLinks present,
4509                          * re-instantiate the Vlink using FDISC.
4510                          */
4511                         mod_timer(&ndlp->nlp_delayfunc,
4512                                   jiffies + msecs_to_jiffies(1000));
4513                         shost = lpfc_shost_from_vport(vport);
4514                         spin_lock_irq(shost->host_lock);
4515                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4516                         spin_unlock_irq(shost->host_lock);
4517                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4518                         vport->port_state = LPFC_FDISC;
4519                 } else {
4520                         /*
4521                          * Otherwise, we request port to rediscover
4522                          * the entire FCF table for a fast recovery
4523                          * from possible case that the current FCF
4524                          * is no longer valid if we are not already
4525                          * in the FCF failover process.
4526                          */
4527                         spin_lock_irq(&phba->hbalock);
4528                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4529                                 spin_unlock_irq(&phba->hbalock);
4530                                 break;
4531                         }
4532                         /* Mark the fast failover process in progress */
4533                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4534                         spin_unlock_irq(&phba->hbalock);
4535                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4536                                         LOG_DISCOVERY,
4537                                         "2773 Start FCF failover per CVL, "
4538                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4539                         rc = lpfc_sli4_redisc_fcf_table(phba);
4540                         if (rc) {
4541                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4542                                                 LOG_DISCOVERY,
4543                                                 "2774 Issue FCF rediscover "
4544                                                 "mabilbox command failed, "
4545                                                 "through to CVL event\n");
4546                                 spin_lock_irq(&phba->hbalock);
4547                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4548                                 spin_unlock_irq(&phba->hbalock);
4549                                 /*
4550                                  * Last resort will be re-try on the
4551                                  * the current registered FCF entry.
4552                                  */
4553                                 lpfc_retry_pport_discovery(phba);
4554                         } else
4555                                 /*
4556                                  * Reset FCF roundrobin bmask for new
4557                                  * discovery.
4558                                  */
4559                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4560                 }
4561                 break;
4562         default:
4563                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4564                         "0288 Unknown FCoE event type 0x%x event tag "
4565                         "0x%x\n", event_type, acqe_fip->event_tag);
4566                 break;
4567         }
4568 }
4569
4570 /**
4571  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4572  * @phba: pointer to lpfc hba data structure.
4573  * @acqe_link: pointer to the async dcbx completion queue entry.
4574  *
4575  * This routine is to handle the SLI4 asynchronous dcbx event.
4576  **/
4577 static void
4578 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4579                          struct lpfc_acqe_dcbx *acqe_dcbx)
4580 {
4581         phba->fc_eventTag = acqe_dcbx->event_tag;
4582         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4583                         "0290 The SLI4 DCBX asynchronous event is not "
4584                         "handled yet\n");
4585 }
4586
4587 /**
4588  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4589  * @phba: pointer to lpfc hba data structure.
4590  * @acqe_link: pointer to the async grp5 completion queue entry.
4591  *
4592  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4593  * is an asynchronous notified of a logical link speed change.  The Port
4594  * reports the logical link speed in units of 10Mbps.
4595  **/
4596 static void
4597 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4598                          struct lpfc_acqe_grp5 *acqe_grp5)
4599 {
4600         uint16_t prev_ll_spd;
4601
4602         phba->fc_eventTag = acqe_grp5->event_tag;
4603         phba->fcoe_eventtag = acqe_grp5->event_tag;
4604         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4605         phba->sli4_hba.link_state.logical_speed =
4606                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4607         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4608                         "2789 GRP5 Async Event: Updating logical link speed "
4609                         "from %dMbps to %dMbps\n", prev_ll_spd,
4610                         phba->sli4_hba.link_state.logical_speed);
4611 }
4612
4613 /**
4614  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4615  * @phba: pointer to lpfc hba data structure.
4616  *
4617  * This routine is invoked by the worker thread to process all the pending
4618  * SLI4 asynchronous events.
4619  **/
4620 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4621 {
4622         struct lpfc_cq_event *cq_event;
4623
4624         /* First, declare the async event has been handled */
4625         spin_lock_irq(&phba->hbalock);
4626         phba->hba_flag &= ~ASYNC_EVENT;
4627         spin_unlock_irq(&phba->hbalock);
4628         /* Now, handle all the async events */
4629         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4630                 /* Get the first event from the head of the event queue */
4631                 spin_lock_irq(&phba->hbalock);
4632                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4633                                  cq_event, struct lpfc_cq_event, list);
4634                 spin_unlock_irq(&phba->hbalock);
4635                 /* Process the asynchronous event */
4636                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4637                 case LPFC_TRAILER_CODE_LINK:
4638                         lpfc_sli4_async_link_evt(phba,
4639                                                  &cq_event->cqe.acqe_link);
4640                         break;
4641                 case LPFC_TRAILER_CODE_FCOE:
4642                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4643                         break;
4644                 case LPFC_TRAILER_CODE_DCBX:
4645                         lpfc_sli4_async_dcbx_evt(phba,
4646                                                  &cq_event->cqe.acqe_dcbx);
4647                         break;
4648                 case LPFC_TRAILER_CODE_GRP5:
4649                         lpfc_sli4_async_grp5_evt(phba,
4650                                                  &cq_event->cqe.acqe_grp5);
4651                         break;
4652                 case LPFC_TRAILER_CODE_FC:
4653                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4654                         break;
4655                 case LPFC_TRAILER_CODE_SLI:
4656                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4657                         break;
4658                 default:
4659                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4660                                         "1804 Invalid asynchrous event code: "
4661                                         "x%x\n", bf_get(lpfc_trailer_code,
4662                                         &cq_event->cqe.mcqe_cmpl));
4663                         break;
4664                 }
4665                 /* Free the completion event processed to the free pool */
4666                 lpfc_sli4_cq_event_release(phba, cq_event);
4667         }
4668 }
4669
4670 /**
4671  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4672  * @phba: pointer to lpfc hba data structure.
4673  *
4674  * This routine is invoked by the worker thread to process FCF table
4675  * rediscovery pending completion event.
4676  **/
4677 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4678 {
4679         int rc;
4680
4681         spin_lock_irq(&phba->hbalock);
4682         /* Clear FCF rediscovery timeout event */
4683         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4684         /* Clear driver fast failover FCF record flag */
4685         phba->fcf.failover_rec.flag = 0;
4686         /* Set state for FCF fast failover */
4687         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4688         spin_unlock_irq(&phba->hbalock);
4689
4690         /* Scan FCF table from the first entry to re-discover SAN */
4691         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4692                         "2777 Start post-quiescent FCF table scan\n");
4693         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4694         if (rc)
4695                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4696                                 "2747 Issue FCF scan read FCF mailbox "
4697                                 "command failed 0x%x\n", rc);
4698 }
4699
4700 /**
4701  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4702  * @phba: pointer to lpfc hba data structure.
4703  * @dev_grp: The HBA PCI-Device group number.
4704  *
4705  * This routine is invoked to set up the per HBA PCI-Device group function
4706  * API jump table entries.
4707  *
4708  * Return: 0 if success, otherwise -ENODEV
4709  **/
4710 int
4711 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4712 {
4713         int rc;
4714
4715         /* Set up lpfc PCI-device group */
4716         phba->pci_dev_grp = dev_grp;
4717
4718         /* The LPFC_PCI_DEV_OC uses SLI4 */
4719         if (dev_grp == LPFC_PCI_DEV_OC)
4720                 phba->sli_rev = LPFC_SLI_REV4;
4721
4722         /* Set up device INIT API function jump table */
4723         rc = lpfc_init_api_table_setup(phba, dev_grp);
4724         if (rc)
4725                 return -ENODEV;
4726         /* Set up SCSI API function jump table */
4727         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4728         if (rc)
4729                 return -ENODEV;
4730         /* Set up SLI API function jump table */
4731         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4732         if (rc)
4733                 return -ENODEV;
4734         /* Set up MBOX API function jump table */
4735         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4736         if (rc)
4737                 return -ENODEV;
4738
4739         return 0;
4740 }
4741
4742 /**
4743  * lpfc_log_intr_mode - Log the active interrupt mode
4744  * @phba: pointer to lpfc hba data structure.
4745  * @intr_mode: active interrupt mode adopted.
4746  *
4747  * This routine it invoked to log the currently used active interrupt mode
4748  * to the device.
4749  **/
4750 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4751 {
4752         switch (intr_mode) {
4753         case 0:
4754                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4755                                 "0470 Enable INTx interrupt mode.\n");
4756                 break;
4757         case 1:
4758                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4759                                 "0481 Enabled MSI interrupt mode.\n");
4760                 break;
4761         case 2:
4762                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4763                                 "0480 Enabled MSI-X interrupt mode.\n");
4764                 break;
4765         default:
4766                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4767                                 "0482 Illegal interrupt mode.\n");
4768                 break;
4769         }
4770         return;
4771 }
4772
4773 /**
4774  * lpfc_enable_pci_dev - Enable a generic PCI device.
4775  * @phba: pointer to lpfc hba data structure.
4776  *
4777  * This routine is invoked to enable the PCI device that is common to all
4778  * PCI devices.
4779  *
4780  * Return codes
4781  *      0 - successful
4782  *      other values - error
4783  **/
4784 static int
4785 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4786 {
4787         struct pci_dev *pdev;
4788         int bars = 0;
4789
4790         /* Obtain PCI device reference */
4791         if (!phba->pcidev)
4792                 goto out_error;
4793         else
4794                 pdev = phba->pcidev;
4795         /* Select PCI BARs */
4796         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4797         /* Enable PCI device */
4798         if (pci_enable_device_mem(pdev))
4799                 goto out_error;
4800         /* Request PCI resource for the device */
4801         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4802                 goto out_disable_device;
4803         /* Set up device as PCI master and save state for EEH */
4804         pci_set_master(pdev);
4805         pci_try_set_mwi(pdev);
4806         pci_save_state(pdev);
4807
4808         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4809         if (pci_is_pcie(pdev))
4810                 pdev->needs_freset = 1;
4811
4812         return 0;
4813
4814 out_disable_device:
4815         pci_disable_device(pdev);
4816 out_error:
4817         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4818                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4819         return -ENODEV;
4820 }
4821
4822 /**
4823  * lpfc_disable_pci_dev - Disable a generic PCI device.
4824  * @phba: pointer to lpfc hba data structure.
4825  *
4826  * This routine is invoked to disable the PCI device that is common to all
4827  * PCI devices.
4828  **/
4829 static void
4830 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4831 {
4832         struct pci_dev *pdev;
4833         int bars;
4834
4835         /* Obtain PCI device reference */
4836         if (!phba->pcidev)
4837                 return;
4838         else
4839                 pdev = phba->pcidev;
4840         /* Select PCI BARs */
4841         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4842         /* Release PCI resource and disable PCI device */
4843         pci_release_selected_regions(pdev, bars);
4844         pci_disable_device(pdev);
4845
4846         return;
4847 }
4848
4849 /**
4850  * lpfc_reset_hba - Reset a hba
4851  * @phba: pointer to lpfc hba data structure.
4852  *
4853  * This routine is invoked to reset a hba device. It brings the HBA
4854  * offline, performs a board restart, and then brings the board back
4855  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4856  * on outstanding mailbox commands.
4857  **/
4858 void
4859 lpfc_reset_hba(struct lpfc_hba *phba)
4860 {
4861         /* If resets are disabled then set error state and return. */
4862         if (!phba->cfg_enable_hba_reset) {
4863                 phba->link_state = LPFC_HBA_ERROR;
4864                 return;
4865         }
4866         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4867                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4868         else
4869                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4870         lpfc_offline(phba);
4871         lpfc_sli_brdrestart(phba);
4872         lpfc_online(phba);
4873         lpfc_unblock_mgmt_io(phba);
4874 }
4875
4876 /**
4877  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4878  * @phba: pointer to lpfc hba data structure.
4879  *
4880  * This function enables the PCI SR-IOV virtual functions to a physical
4881  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4882  * enable the number of virtual functions to the physical function. As
4883  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4884  * API call does not considered as an error condition for most of the device.
4885  **/
4886 uint16_t
4887 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4888 {
4889         struct pci_dev *pdev = phba->pcidev;
4890         uint16_t nr_virtfn;
4891         int pos;
4892
4893         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4894         if (pos == 0)
4895                 return 0;
4896
4897         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4898         return nr_virtfn;
4899 }
4900
4901 /**
4902  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4903  * @phba: pointer to lpfc hba data structure.
4904  * @nr_vfn: number of virtual functions to be enabled.
4905  *
4906  * This function enables the PCI SR-IOV virtual functions to a physical
4907  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4908  * enable the number of virtual functions to the physical function. As
4909  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4910  * API call does not considered as an error condition for most of the device.
4911  **/
4912 int
4913 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4914 {
4915         struct pci_dev *pdev = phba->pcidev;
4916         uint16_t max_nr_vfn;
4917         int rc;
4918
4919         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4920         if (nr_vfn > max_nr_vfn) {
4921                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4922                                 "3057 Requested vfs (%d) greater than "
4923                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4924                 return -EINVAL;
4925         }
4926
4927         rc = pci_enable_sriov(pdev, nr_vfn);
4928         if (rc) {
4929                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4930                                 "2806 Failed to enable sriov on this device "
4931                                 "with vfn number nr_vf:%d, rc:%d\n",
4932                                 nr_vfn, rc);
4933         } else
4934                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4935                                 "2807 Successful enable sriov on this device "
4936                                 "with vfn number nr_vf:%d\n", nr_vfn);
4937         return rc;
4938 }
4939
4940 /**
4941  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4942  * @phba: pointer to lpfc hba data structure.
4943  *
4944  * This routine is invoked to set up the driver internal resources specific to
4945  * support the SLI-3 HBA device it attached to.
4946  *
4947  * Return codes
4948  *      0 - successful
4949  *      other values - error
4950  **/
4951 static int
4952 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4953 {
4954         struct lpfc_sli *psli;
4955         int rc;
4956
4957         /*
4958          * Initialize timers used by driver
4959          */
4960
4961         /* Heartbeat timer */
4962         init_timer(&phba->hb_tmofunc);
4963         phba->hb_tmofunc.function = lpfc_hb_timeout;
4964         phba->hb_tmofunc.data = (unsigned long)phba;
4965
4966         psli = &phba->sli;
4967         /* MBOX heartbeat timer */
4968         init_timer(&psli->mbox_tmo);
4969         psli->mbox_tmo.function = lpfc_mbox_timeout;
4970         psli->mbox_tmo.data = (unsigned long) phba;
4971         /* FCP polling mode timer */
4972         init_timer(&phba->fcp_poll_timer);
4973         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4974         phba->fcp_poll_timer.data = (unsigned long) phba;
4975         /* Fabric block timer */
4976         init_timer(&phba->fabric_block_timer);
4977         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4978         phba->fabric_block_timer.data = (unsigned long) phba;
4979         /* EA polling mode timer */
4980         init_timer(&phba->eratt_poll);
4981         phba->eratt_poll.function = lpfc_poll_eratt;
4982         phba->eratt_poll.data = (unsigned long) phba;
4983
4984         /* Host attention work mask setup */
4985         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4986         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4987
4988         /* Get all the module params for configuring this host */
4989         lpfc_get_cfgparam(phba);
4990         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4991                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4992                 /* check for menlo minimum sg count */
4993                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4994                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4995         }
4996
4997         if (!phba->sli.ring)
4998                 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
4999                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5000         if (!phba->sli.ring)
5001                 return -ENOMEM;
5002
5003         /*
5004          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5005          * used to create the sg_dma_buf_pool must be dynamically calculated.
5006          */
5007
5008         /* Initialize the host templates the configured values. */
5009         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5010         lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5011
5012         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5013         if (phba->cfg_enable_bg) {
5014                 /*
5015                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5016                  * the FCP rsp, and a BDE for each. Sice we have no control
5017                  * over how many protection data segments the SCSI Layer
5018                  * will hand us (ie: there could be one for every block
5019                  * in the IO), we just allocate enough BDEs to accomidate
5020                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5021                  * minimize the risk of running out.
5022                  */
5023                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5024                         sizeof(struct fcp_rsp) +
5025                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5026
5027                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5028                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5029
5030                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5031                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5032         } else {
5033                 /*
5034                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5035                  * the FCP rsp, a BDE for each, and a BDE for up to
5036                  * cfg_sg_seg_cnt data segments.
5037                  */
5038                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5039                         sizeof(struct fcp_rsp) +
5040                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5041
5042                 /* Total BDEs in BPL for scsi_sg_list */
5043                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5044         }
5045
5046         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5047                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5048                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5049                         phba->cfg_total_seg_cnt);
5050
5051         phba->max_vpi = LPFC_MAX_VPI;
5052         /* This will be set to correct value after config_port mbox */
5053         phba->max_vports = 0;
5054
5055         /*
5056          * Initialize the SLI Layer to run with lpfc HBAs.
5057          */
5058         lpfc_sli_setup(phba);
5059         lpfc_sli_queue_setup(phba);
5060
5061         /* Allocate device driver memory */
5062         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5063                 return -ENOMEM;
5064
5065         /*
5066          * Enable sr-iov virtual functions if supported and configured
5067          * through the module parameter.
5068          */
5069         if (phba->cfg_sriov_nr_virtfn > 0) {
5070                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5071                                                  phba->cfg_sriov_nr_virtfn);
5072                 if (rc) {
5073                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5074                                         "2808 Requested number of SR-IOV "
5075                                         "virtual functions (%d) is not "
5076                                         "supported\n",
5077                                         phba->cfg_sriov_nr_virtfn);
5078                         phba->cfg_sriov_nr_virtfn = 0;
5079                 }
5080         }
5081
5082         return 0;
5083 }
5084
5085 /**
5086  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5087  * @phba: pointer to lpfc hba data structure.
5088  *
5089  * This routine is invoked to unset the driver internal resources set up
5090  * specific for supporting the SLI-3 HBA device it attached to.
5091  **/
5092 static void
5093 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5094 {
5095         /* Free device driver memory allocated */
5096         lpfc_mem_free_all(phba);
5097
5098         return;
5099 }
5100
5101 /**
5102  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5103  * @phba: pointer to lpfc hba data structure.
5104  *
5105  * This routine is invoked to set up the driver internal resources specific to
5106  * support the SLI-4 HBA device it attached to.
5107  *
5108  * Return codes
5109  *      0 - successful
5110  *      other values - error
5111  **/
5112 static int
5113 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5114 {
5115         struct lpfc_vector_map_info *cpup;
5116         struct lpfc_sli *psli;
5117         LPFC_MBOXQ_t *mboxq;
5118         int rc, i, hbq_count, max_buf_size;
5119         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5120         struct lpfc_mqe *mqe;
5121         int longs;
5122         int fof_vectors = 0;
5123
5124         /* Get all the module params for configuring this host */
5125         lpfc_get_cfgparam(phba);
5126
5127         /* Before proceed, wait for POST done and device ready */
5128         rc = lpfc_sli4_post_status_check(phba);
5129         if (rc)
5130                 return -ENODEV;
5131
5132         /*
5133          * Initialize timers used by driver
5134          */
5135
5136         /* Heartbeat timer */
5137         init_timer(&phba->hb_tmofunc);
5138         phba->hb_tmofunc.function = lpfc_hb_timeout;
5139         phba->hb_tmofunc.data = (unsigned long)phba;
5140         init_timer(&phba->rrq_tmr);
5141         phba->rrq_tmr.function = lpfc_rrq_timeout;
5142         phba->rrq_tmr.data = (unsigned long)phba;
5143
5144         psli = &phba->sli;
5145         /* MBOX heartbeat timer */
5146         init_timer(&psli->mbox_tmo);
5147         psli->mbox_tmo.function = lpfc_mbox_timeout;
5148         psli->mbox_tmo.data = (unsigned long) phba;
5149         /* Fabric block timer */
5150         init_timer(&phba->fabric_block_timer);
5151         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5152         phba->fabric_block_timer.data = (unsigned long) phba;
5153         /* EA polling mode timer */
5154         init_timer(&phba->eratt_poll);
5155         phba->eratt_poll.function = lpfc_poll_eratt;
5156         phba->eratt_poll.data = (unsigned long) phba;
5157         /* FCF rediscover timer */
5158         init_timer(&phba->fcf.redisc_wait);
5159         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5160         phba->fcf.redisc_wait.data = (unsigned long)phba;
5161
5162         /*
5163          * Control structure for handling external multi-buffer mailbox
5164          * command pass-through.
5165          */
5166         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5167                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5168         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5169
5170         phba->max_vpi = LPFC_MAX_VPI;
5171
5172         /* This will be set to correct value after the read_config mbox */
5173         phba->max_vports = 0;
5174
5175         /* Program the default value of vlan_id and fc_map */
5176         phba->valid_vlan = 0;
5177         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5178         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5179         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5180
5181         /*
5182          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5183          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5184          */
5185         if (!phba->sli.ring)
5186                 phba->sli.ring = kzalloc(
5187                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5188                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5189         if (!phba->sli.ring)
5190                 return -ENOMEM;
5191
5192         /*
5193          * It doesn't matter what family our adapter is in, we are
5194          * limited to 2 Pages, 512 SGEs, for our SGL.
5195          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5196          */
5197         max_buf_size = (2 * SLI4_PAGE_SIZE);
5198         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5199                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5200
5201         /*
5202          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5203          * used to create the sg_dma_buf_pool must be dynamically calculated.
5204          */
5205
5206         if (phba->cfg_enable_bg) {
5207                 /*
5208                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5209                  * the FCP rsp, and a SGE for each. Sice we have no control
5210                  * over how many protection data segments the SCSI Layer
5211                  * will hand us (ie: there could be one for every block
5212                  * in the IO), we just allocate enough SGEs to accomidate
5213                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5214                  * minimize the risk of running out.
5215                  */
5216                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5217                         sizeof(struct fcp_rsp) + max_buf_size;
5218
5219                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5220                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5221
5222                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5223                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5224         } else {
5225                 /*
5226                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5227                  * the FCP rsp, a SGE for each, and a SGE for up to
5228                  * cfg_sg_seg_cnt data segments.
5229                  */
5230                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5231                         sizeof(struct fcp_rsp) +
5232                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5233
5234                 /* Total SGEs for scsi_sg_list */
5235                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5236                 /*
5237                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5238                  * to post 1 page for the SGL.
5239                  */
5240         }
5241
5242         /* Initialize the host templates with the updated values. */
5243         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5244         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5245
5246         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5247                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5248         else
5249                 phba->cfg_sg_dma_buf_size =
5250                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5251
5252         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5253                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5254                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5255                         phba->cfg_total_seg_cnt);
5256
5257         /* Initialize buffer queue management fields */
5258         hbq_count = lpfc_sli_hbq_count();
5259         for (i = 0; i < hbq_count; ++i)
5260                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5261         INIT_LIST_HEAD(&phba->rb_pend_list);
5262         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5263         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5264
5265         /*
5266          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5267          */
5268         /* Initialize the Abort scsi buffer list used by driver */
5269         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5270         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5271         /* This abort list used by worker thread */
5272         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5273
5274         /*
5275          * Initialize driver internal slow-path work queues
5276          */
5277
5278         /* Driver internel slow-path CQ Event pool */
5279         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5280         /* Response IOCB work queue list */
5281         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5282         /* Asynchronous event CQ Event work queue list */
5283         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5284         /* Fast-path XRI aborted CQ Event work queue list */
5285         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5286         /* Slow-path XRI aborted CQ Event work queue list */
5287         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5288         /* Receive queue CQ Event work queue list */
5289         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5290
5291         /* Initialize extent block lists. */
5292         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5293         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5294         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5295         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5296
5297         /* Initialize the driver internal SLI layer lists. */
5298         lpfc_sli_setup(phba);
5299         lpfc_sli_queue_setup(phba);
5300
5301         /* Allocate device driver memory */
5302         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5303         if (rc)
5304                 return -ENOMEM;
5305
5306         /* IF Type 2 ports get initialized now. */
5307         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5308             LPFC_SLI_INTF_IF_TYPE_2) {
5309                 rc = lpfc_pci_function_reset(phba);
5310                 if (unlikely(rc))
5311                         return -ENODEV;
5312                 phba->temp_sensor_support = 1;
5313         }
5314
5315         /* Create the bootstrap mailbox command */
5316         rc = lpfc_create_bootstrap_mbox(phba);
5317         if (unlikely(rc))
5318                 goto out_free_mem;
5319
5320         /* Set up the host's endian order with the device. */
5321         rc = lpfc_setup_endian_order(phba);
5322         if (unlikely(rc))
5323                 goto out_free_bsmbx;
5324
5325         /* Set up the hba's configuration parameters. */
5326         rc = lpfc_sli4_read_config(phba);
5327         if (unlikely(rc))
5328                 goto out_free_bsmbx;
5329         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5330         if (unlikely(rc))
5331                 goto out_free_bsmbx;
5332
5333         /* IF Type 0 ports get initialized now. */
5334         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5335             LPFC_SLI_INTF_IF_TYPE_0) {
5336                 rc = lpfc_pci_function_reset(phba);
5337                 if (unlikely(rc))
5338                         goto out_free_bsmbx;
5339         }
5340
5341         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5342                                                        GFP_KERNEL);
5343         if (!mboxq) {
5344                 rc = -ENOMEM;
5345                 goto out_free_bsmbx;
5346         }
5347
5348         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5349         lpfc_supported_pages(mboxq);
5350         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5351         if (!rc) {
5352                 mqe = &mboxq->u.mqe;
5353                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5354                        LPFC_MAX_SUPPORTED_PAGES);
5355                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5356                         switch (pn_page[i]) {
5357                         case LPFC_SLI4_PARAMETERS:
5358                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5359                                 break;
5360                         default:
5361                                 break;
5362                         }
5363                 }
5364                 /* Read the port's SLI4 Parameters capabilities if supported. */
5365                 if (phba->sli4_hba.pc_sli4_params.supported)
5366                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5367                 if (rc) {
5368                         mempool_free(mboxq, phba->mbox_mem_pool);
5369                         rc = -EIO;
5370                         goto out_free_bsmbx;
5371                 }
5372         }
5373         /*
5374          * Get sli4 parameters that override parameters from Port capabilities.
5375          * If this call fails, it isn't critical unless the SLI4 parameters come
5376          * back in conflict.
5377          */
5378         rc = lpfc_get_sli4_parameters(phba, mboxq);
5379         if (rc) {
5380                 if (phba->sli4_hba.extents_in_use &&
5381                     phba->sli4_hba.rpi_hdrs_in_use) {
5382                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5383                                 "2999 Unsupported SLI4 Parameters "
5384                                 "Extents and RPI headers enabled.\n");
5385                         goto out_free_bsmbx;
5386                 }
5387         }
5388         mempool_free(mboxq, phba->mbox_mem_pool);
5389
5390         /* Verify OAS is supported */
5391         lpfc_sli4_oas_verify(phba);
5392         if (phba->cfg_fof)
5393                 fof_vectors = 1;
5394
5395         /* Verify all the SLI4 queues */
5396         rc = lpfc_sli4_queue_verify(phba);
5397         if (rc)
5398                 goto out_free_bsmbx;
5399
5400         /* Create driver internal CQE event pool */
5401         rc = lpfc_sli4_cq_event_pool_create(phba);
5402         if (rc)
5403                 goto out_free_bsmbx;
5404
5405         /* Initialize sgl lists per host */
5406         lpfc_init_sgl_list(phba);
5407
5408         /* Allocate and initialize active sgl array */
5409         rc = lpfc_init_active_sgl_array(phba);
5410         if (rc) {
5411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5412                                 "1430 Failed to initialize sgl list.\n");
5413                 goto out_destroy_cq_event_pool;
5414         }
5415         rc = lpfc_sli4_init_rpi_hdrs(phba);
5416         if (rc) {
5417                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5418                                 "1432 Failed to initialize rpi headers.\n");
5419                 goto out_free_active_sgl;
5420         }
5421
5422         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5423         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5424         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5425                                          GFP_KERNEL);
5426         if (!phba->fcf.fcf_rr_bmask) {
5427                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5428                                 "2759 Failed allocate memory for FCF round "
5429                                 "robin failover bmask\n");
5430                 rc = -ENOMEM;
5431                 goto out_remove_rpi_hdrs;
5432         }
5433
5434         phba->sli4_hba.fcp_eq_hdl =
5435                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5436                             (fof_vectors + phba->cfg_fcp_io_channel)),
5437                             GFP_KERNEL);
5438         if (!phba->sli4_hba.fcp_eq_hdl) {
5439                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5440                                 "2572 Failed allocate memory for "
5441                                 "fast-path per-EQ handle array\n");
5442                 rc = -ENOMEM;
5443                 goto out_free_fcf_rr_bmask;
5444         }
5445
5446         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5447                                   (fof_vectors +
5448                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5449         if (!phba->sli4_hba.msix_entries) {
5450                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5451                                 "2573 Failed allocate memory for msi-x "
5452                                 "interrupt vector entries\n");
5453                 rc = -ENOMEM;
5454                 goto out_free_fcp_eq_hdl;
5455         }
5456
5457         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5458                                          phba->sli4_hba.num_present_cpu),
5459                                          GFP_KERNEL);
5460         if (!phba->sli4_hba.cpu_map) {
5461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5462                                 "3327 Failed allocate memory for msi-x "
5463                                 "interrupt vector mapping\n");
5464                 rc = -ENOMEM;
5465                 goto out_free_msix;
5466         }
5467         if (lpfc_used_cpu == NULL) {
5468                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5469                                          GFP_KERNEL);
5470                 if (!lpfc_used_cpu) {
5471                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5472                                         "3335 Failed allocate memory for msi-x "
5473                                         "interrupt vector mapping\n");
5474                         kfree(phba->sli4_hba.cpu_map);
5475                         rc = -ENOMEM;
5476                         goto out_free_msix;
5477                 }
5478                 for (i = 0; i < lpfc_present_cpu; i++)
5479                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5480         }
5481
5482         /* Initialize io channels for round robin */
5483         cpup = phba->sli4_hba.cpu_map;
5484         rc = 0;
5485         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5486                 cpup->channel_id = rc;
5487                 rc++;
5488                 if (rc >= phba->cfg_fcp_io_channel)
5489                         rc = 0;
5490         }
5491
5492         /*
5493          * Enable sr-iov virtual functions if supported and configured
5494          * through the module parameter.
5495          */
5496         if (phba->cfg_sriov_nr_virtfn > 0) {
5497                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5498                                                  phba->cfg_sriov_nr_virtfn);
5499                 if (rc) {
5500                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5501                                         "3020 Requested number of SR-IOV "
5502                                         "virtual functions (%d) is not "
5503                                         "supported\n",
5504                                         phba->cfg_sriov_nr_virtfn);
5505                         phba->cfg_sriov_nr_virtfn = 0;
5506                 }
5507         }
5508
5509         return 0;
5510
5511 out_free_msix:
5512         kfree(phba->sli4_hba.msix_entries);
5513 out_free_fcp_eq_hdl:
5514         kfree(phba->sli4_hba.fcp_eq_hdl);
5515 out_free_fcf_rr_bmask:
5516         kfree(phba->fcf.fcf_rr_bmask);
5517 out_remove_rpi_hdrs:
5518         lpfc_sli4_remove_rpi_hdrs(phba);
5519 out_free_active_sgl:
5520         lpfc_free_active_sgl(phba);
5521 out_destroy_cq_event_pool:
5522         lpfc_sli4_cq_event_pool_destroy(phba);
5523 out_free_bsmbx:
5524         lpfc_destroy_bootstrap_mbox(phba);
5525 out_free_mem:
5526         lpfc_mem_free(phba);
5527         return rc;
5528 }
5529
5530 /**
5531  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5532  * @phba: pointer to lpfc hba data structure.
5533  *
5534  * This routine is invoked to unset the driver internal resources set up
5535  * specific for supporting the SLI-4 HBA device it attached to.
5536  **/
5537 static void
5538 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5539 {
5540         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5541
5542         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5543         kfree(phba->sli4_hba.cpu_map);
5544         phba->sli4_hba.num_present_cpu = 0;
5545         phba->sli4_hba.num_online_cpu = 0;
5546         phba->sli4_hba.curr_disp_cpu = 0;
5547
5548         /* Free memory allocated for msi-x interrupt vector entries */
5549         kfree(phba->sli4_hba.msix_entries);
5550
5551         /* Free memory allocated for fast-path work queue handles */
5552         kfree(phba->sli4_hba.fcp_eq_hdl);
5553
5554         /* Free the allocated rpi headers. */
5555         lpfc_sli4_remove_rpi_hdrs(phba);
5556         lpfc_sli4_remove_rpis(phba);
5557
5558         /* Free eligible FCF index bmask */
5559         kfree(phba->fcf.fcf_rr_bmask);
5560
5561         /* Free the ELS sgl list */
5562         lpfc_free_active_sgl(phba);
5563         lpfc_free_els_sgl_list(phba);
5564
5565         /* Free the completion queue EQ event pool */
5566         lpfc_sli4_cq_event_release_all(phba);
5567         lpfc_sli4_cq_event_pool_destroy(phba);
5568
5569         /* Release resource identifiers. */
5570         lpfc_sli4_dealloc_resource_identifiers(phba);
5571
5572         /* Free the bsmbx region. */
5573         lpfc_destroy_bootstrap_mbox(phba);
5574
5575         /* Free the SLI Layer memory with SLI4 HBAs */
5576         lpfc_mem_free_all(phba);
5577
5578         /* Free the current connect table */
5579         list_for_each_entry_safe(conn_entry, next_conn_entry,
5580                 &phba->fcf_conn_rec_list, list) {
5581                 list_del_init(&conn_entry->list);
5582                 kfree(conn_entry);
5583         }
5584
5585         return;
5586 }
5587
5588 /**
5589  * lpfc_init_api_table_setup - Set up init api function jump table
5590  * @phba: The hba struct for which this call is being executed.
5591  * @dev_grp: The HBA PCI-Device group number.
5592  *
5593  * This routine sets up the device INIT interface API function jump table
5594  * in @phba struct.
5595  *
5596  * Returns: 0 - success, -ENODEV - failure.
5597  **/
5598 int
5599 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5600 {
5601         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5602         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5603         phba->lpfc_selective_reset = lpfc_selective_reset;
5604         switch (dev_grp) {
5605         case LPFC_PCI_DEV_LP:
5606                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5607                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5608                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5609                 break;
5610         case LPFC_PCI_DEV_OC:
5611                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5612                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5613                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5614                 break;
5615         default:
5616                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5617                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5618                                 dev_grp);
5619                 return -ENODEV;
5620                 break;
5621         }
5622         return 0;
5623 }
5624
5625 /**
5626  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5627  * @phba: pointer to lpfc hba data structure.
5628  *
5629  * This routine is invoked to set up the driver internal resources before the
5630  * device specific resource setup to support the HBA device it attached to.
5631  *
5632  * Return codes
5633  *      0 - successful
5634  *      other values - error
5635  **/
5636 static int
5637 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5638 {
5639         /*
5640          * Driver resources common to all SLI revisions
5641          */
5642         atomic_set(&phba->fast_event_count, 0);
5643         spin_lock_init(&phba->hbalock);
5644
5645         /* Initialize ndlp management spinlock */
5646         spin_lock_init(&phba->ndlp_lock);
5647
5648         INIT_LIST_HEAD(&phba->port_list);
5649         INIT_LIST_HEAD(&phba->work_list);
5650         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5651
5652         /* Initialize the wait queue head for the kernel thread */
5653         init_waitqueue_head(&phba->work_waitq);
5654
5655         /* Initialize the scsi buffer list used by driver for scsi IO */
5656         spin_lock_init(&phba->scsi_buf_list_get_lock);
5657         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5658         spin_lock_init(&phba->scsi_buf_list_put_lock);
5659         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5660
5661         /* Initialize the fabric iocb list */
5662         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5663
5664         /* Initialize list to save ELS buffers */
5665         INIT_LIST_HEAD(&phba->elsbuf);
5666
5667         /* Initialize FCF connection rec list */
5668         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5669
5670         /* Initialize OAS configuration list */
5671         spin_lock_init(&phba->devicelock);
5672         INIT_LIST_HEAD(&phba->luns);
5673
5674         return 0;
5675 }
5676
5677 /**
5678  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5679  * @phba: pointer to lpfc hba data structure.
5680  *
5681  * This routine is invoked to set up the driver internal resources after the
5682  * device specific resource setup to support the HBA device it attached to.
5683  *
5684  * Return codes
5685  *      0 - successful
5686  *      other values - error
5687  **/
5688 static int
5689 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5690 {
5691         int error;
5692
5693         /* Startup the kernel thread for this host adapter. */
5694         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5695                                           "lpfc_worker_%d", phba->brd_no);
5696         if (IS_ERR(phba->worker_thread)) {
5697                 error = PTR_ERR(phba->worker_thread);
5698                 return error;
5699         }
5700
5701         return 0;
5702 }
5703
5704 /**
5705  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5706  * @phba: pointer to lpfc hba data structure.
5707  *
5708  * This routine is invoked to unset the driver internal resources set up after
5709  * the device specific resource setup for supporting the HBA device it
5710  * attached to.
5711  **/
5712 static void
5713 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5714 {
5715         /* Stop kernel worker thread */
5716         kthread_stop(phba->worker_thread);
5717 }
5718
5719 /**
5720  * lpfc_free_iocb_list - Free iocb list.
5721  * @phba: pointer to lpfc hba data structure.
5722  *
5723  * This routine is invoked to free the driver's IOCB list and memory.
5724  **/
5725 static void
5726 lpfc_free_iocb_list(struct lpfc_hba *phba)
5727 {
5728         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5729
5730         spin_lock_irq(&phba->hbalock);
5731         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5732                                  &phba->lpfc_iocb_list, list) {
5733                 list_del(&iocbq_entry->list);
5734                 kfree(iocbq_entry);
5735                 phba->total_iocbq_bufs--;
5736         }
5737         spin_unlock_irq(&phba->hbalock);
5738
5739         return;
5740 }
5741
5742 /**
5743  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5744  * @phba: pointer to lpfc hba data structure.
5745  *
5746  * This routine is invoked to allocate and initizlize the driver's IOCB
5747  * list and set up the IOCB tag array accordingly.
5748  *
5749  * Return codes
5750  *      0 - successful
5751  *      other values - error
5752  **/
5753 static int
5754 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5755 {
5756         struct lpfc_iocbq *iocbq_entry = NULL;
5757         uint16_t iotag;
5758         int i;
5759
5760         /* Initialize and populate the iocb list per host.  */
5761         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5762         for (i = 0; i < iocb_count; i++) {
5763                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5764                 if (iocbq_entry == NULL) {
5765                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5766                                 "expected %d count. Unloading driver.\n",
5767                                 __func__, i, LPFC_IOCB_LIST_CNT);
5768                         goto out_free_iocbq;
5769                 }
5770
5771                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5772                 if (iotag == 0) {
5773                         kfree(iocbq_entry);
5774                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5775                                 "Unloading driver.\n", __func__);
5776                         goto out_free_iocbq;
5777                 }
5778                 iocbq_entry->sli4_lxritag = NO_XRI;
5779                 iocbq_entry->sli4_xritag = NO_XRI;
5780
5781                 spin_lock_irq(&phba->hbalock);
5782                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5783                 phba->total_iocbq_bufs++;
5784                 spin_unlock_irq(&phba->hbalock);
5785         }
5786
5787         return 0;
5788
5789 out_free_iocbq:
5790         lpfc_free_iocb_list(phba);
5791
5792         return -ENOMEM;
5793 }
5794
5795 /**
5796  * lpfc_free_sgl_list - Free a given sgl list.
5797  * @phba: pointer to lpfc hba data structure.
5798  * @sglq_list: pointer to the head of sgl list.
5799  *
5800  * This routine is invoked to free a give sgl list and memory.
5801  **/
5802 void
5803 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5804 {
5805         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5806
5807         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5808                 list_del(&sglq_entry->list);
5809                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5810                 kfree(sglq_entry);
5811         }
5812 }
5813
5814 /**
5815  * lpfc_free_els_sgl_list - Free els sgl list.
5816  * @phba: pointer to lpfc hba data structure.
5817  *
5818  * This routine is invoked to free the driver's els sgl list and memory.
5819  **/
5820 static void
5821 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5822 {
5823         LIST_HEAD(sglq_list);
5824         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5825
5826         /* Retrieve all els sgls from driver list */
5827         spin_lock_irq(&phba->hbalock);
5828         spin_lock(&pring->ring_lock);
5829         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5830         spin_unlock(&pring->ring_lock);
5831         spin_unlock_irq(&phba->hbalock);
5832
5833         /* Now free the sgl list */
5834         lpfc_free_sgl_list(phba, &sglq_list);
5835 }
5836
5837 /**
5838  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5839  * @phba: pointer to lpfc hba data structure.
5840  *
5841  * This routine is invoked to allocate the driver's active sgl memory.
5842  * This array will hold the sglq_entry's for active IOs.
5843  **/
5844 static int
5845 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5846 {
5847         int size;
5848         size = sizeof(struct lpfc_sglq *);
5849         size *= phba->sli4_hba.max_cfg_param.max_xri;
5850
5851         phba->sli4_hba.lpfc_sglq_active_list =
5852                 kzalloc(size, GFP_KERNEL);
5853         if (!phba->sli4_hba.lpfc_sglq_active_list)
5854                 return -ENOMEM;
5855         return 0;
5856 }
5857
5858 /**
5859  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5860  * @phba: pointer to lpfc hba data structure.
5861  *
5862  * This routine is invoked to walk through the array of active sglq entries
5863  * and free all of the resources.
5864  * This is just a place holder for now.
5865  **/
5866 static void
5867 lpfc_free_active_sgl(struct lpfc_hba *phba)
5868 {
5869         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5870 }
5871
5872 /**
5873  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5874  * @phba: pointer to lpfc hba data structure.
5875  *
5876  * This routine is invoked to allocate and initizlize the driver's sgl
5877  * list and set up the sgl xritag tag array accordingly.
5878  *
5879  **/
5880 static void
5881 lpfc_init_sgl_list(struct lpfc_hba *phba)
5882 {
5883         /* Initialize and populate the sglq list per host/VF. */
5884         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5885         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5886
5887         /* els xri-sgl book keeping */
5888         phba->sli4_hba.els_xri_cnt = 0;
5889
5890         /* scsi xri-buffer book keeping */
5891         phba->sli4_hba.scsi_xri_cnt = 0;
5892 }
5893
5894 /**
5895  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5896  * @phba: pointer to lpfc hba data structure.
5897  *
5898  * This routine is invoked to post rpi header templates to the
5899  * port for those SLI4 ports that do not support extents.  This routine
5900  * posts a PAGE_SIZE memory region to the port to hold up to
5901  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5902  * and should be called only when interrupts are disabled.
5903  *
5904  * Return codes
5905  *      0 - successful
5906  *      -ERROR - otherwise.
5907  **/
5908 int
5909 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5910 {
5911         int rc = 0;
5912         struct lpfc_rpi_hdr *rpi_hdr;
5913
5914         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5915         if (!phba->sli4_hba.rpi_hdrs_in_use)
5916                 return rc;
5917         if (phba->sli4_hba.extents_in_use)
5918                 return -EIO;
5919
5920         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5921         if (!rpi_hdr) {
5922                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5923                                 "0391 Error during rpi post operation\n");
5924                 lpfc_sli4_remove_rpis(phba);
5925                 rc = -ENODEV;
5926         }
5927
5928         return rc;
5929 }
5930
5931 /**
5932  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5933  * @phba: pointer to lpfc hba data structure.
5934  *
5935  * This routine is invoked to allocate a single 4KB memory region to
5936  * support rpis and stores them in the phba.  This single region
5937  * provides support for up to 64 rpis.  The region is used globally
5938  * by the device.
5939  *
5940  * Returns:
5941  *   A valid rpi hdr on success.
5942  *   A NULL pointer on any failure.
5943  **/
5944 struct lpfc_rpi_hdr *
5945 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5946 {
5947         uint16_t rpi_limit, curr_rpi_range;
5948         struct lpfc_dmabuf *dmabuf;
5949         struct lpfc_rpi_hdr *rpi_hdr;
5950         uint32_t rpi_count;
5951
5952         /*
5953          * If the SLI4 port supports extents, posting the rpi header isn't
5954          * required.  Set the expected maximum count and let the actual value
5955          * get set when extents are fully allocated.
5956          */
5957         if (!phba->sli4_hba.rpi_hdrs_in_use)
5958                 return NULL;
5959         if (phba->sli4_hba.extents_in_use)
5960                 return NULL;
5961
5962         /* The limit on the logical index is just the max_rpi count. */
5963         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5964         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5965
5966         spin_lock_irq(&phba->hbalock);
5967         /*
5968          * Establish the starting RPI in this header block.  The starting
5969          * rpi is normalized to a zero base because the physical rpi is
5970          * port based.
5971          */
5972         curr_rpi_range = phba->sli4_hba.next_rpi;
5973         spin_unlock_irq(&phba->hbalock);
5974
5975         /*
5976          * The port has a limited number of rpis. The increment here
5977          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5978          * and to allow the full max_rpi range per port.
5979          */
5980         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5981                 rpi_count = rpi_limit - curr_rpi_range;
5982         else
5983                 rpi_count = LPFC_RPI_HDR_COUNT;
5984
5985         if (!rpi_count)
5986                 return NULL;
5987         /*
5988          * First allocate the protocol header region for the port.  The
5989          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5990          */
5991         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5992         if (!dmabuf)
5993                 return NULL;
5994
5995         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5996                                            LPFC_HDR_TEMPLATE_SIZE,
5997                                            &dmabuf->phys, GFP_KERNEL);
5998         if (!dmabuf->virt) {
5999                 rpi_hdr = NULL;
6000                 goto err_free_dmabuf;
6001         }
6002
6003         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6004                 rpi_hdr = NULL;
6005                 goto err_free_coherent;
6006         }
6007
6008         /* Save the rpi header data for cleanup later. */
6009         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6010         if (!rpi_hdr)
6011                 goto err_free_coherent;
6012
6013         rpi_hdr->dmabuf = dmabuf;
6014         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6015         rpi_hdr->page_count = 1;
6016         spin_lock_irq(&phba->hbalock);
6017
6018         /* The rpi_hdr stores the logical index only. */
6019         rpi_hdr->start_rpi = curr_rpi_range;
6020         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6021
6022         /*
6023          * The next_rpi stores the next logical module-64 rpi value used
6024          * to post physical rpis in subsequent rpi postings.
6025          */
6026         phba->sli4_hba.next_rpi += rpi_count;
6027         spin_unlock_irq(&phba->hbalock);
6028         return rpi_hdr;
6029
6030  err_free_coherent:
6031         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6032                           dmabuf->virt, dmabuf->phys);
6033  err_free_dmabuf:
6034         kfree(dmabuf);
6035         return NULL;
6036 }
6037
6038 /**
6039  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6040  * @phba: pointer to lpfc hba data structure.
6041  *
6042  * This routine is invoked to remove all memory resources allocated
6043  * to support rpis for SLI4 ports not supporting extents. This routine
6044  * presumes the caller has released all rpis consumed by fabric or port
6045  * logins and is prepared to have the header pages removed.
6046  **/
6047 void
6048 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6049 {
6050         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6051
6052         if (!phba->sli4_hba.rpi_hdrs_in_use)
6053                 goto exit;
6054
6055         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6056                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6057                 list_del(&rpi_hdr->list);
6058                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6059                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6060                 kfree(rpi_hdr->dmabuf);
6061                 kfree(rpi_hdr);
6062         }
6063  exit:
6064         /* There are no rpis available to the port now. */
6065         phba->sli4_hba.next_rpi = 0;
6066 }
6067
6068 /**
6069  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6070  * @pdev: pointer to pci device data structure.
6071  *
6072  * This routine is invoked to allocate the driver hba data structure for an
6073  * HBA device. If the allocation is successful, the phba reference to the
6074  * PCI device data structure is set.
6075  *
6076  * Return codes
6077  *      pointer to @phba - successful
6078  *      NULL - error
6079  **/
6080 static struct lpfc_hba *
6081 lpfc_hba_alloc(struct pci_dev *pdev)
6082 {
6083         struct lpfc_hba *phba;
6084
6085         /* Allocate memory for HBA structure */
6086         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6087         if (!phba) {
6088                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6089                 return NULL;
6090         }
6091
6092         /* Set reference to PCI device in HBA structure */
6093         phba->pcidev = pdev;
6094
6095         /* Assign an unused board number */
6096         phba->brd_no = lpfc_get_instance();
6097         if (phba->brd_no < 0) {
6098                 kfree(phba);
6099                 return NULL;
6100         }
6101
6102         spin_lock_init(&phba->ct_ev_lock);
6103         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6104
6105         return phba;
6106 }
6107
6108 /**
6109  * lpfc_hba_free - Free driver hba data structure with a device.
6110  * @phba: pointer to lpfc hba data structure.
6111  *
6112  * This routine is invoked to free the driver hba data structure with an
6113  * HBA device.
6114  **/
6115 static void
6116 lpfc_hba_free(struct lpfc_hba *phba)
6117 {
6118         /* Release the driver assigned board number */
6119         idr_remove(&lpfc_hba_index, phba->brd_no);
6120
6121         /* Free memory allocated with sli rings */
6122         kfree(phba->sli.ring);
6123         phba->sli.ring = NULL;
6124
6125         kfree(phba);
6126         return;
6127 }
6128
6129 /**
6130  * lpfc_create_shost - Create hba physical port with associated scsi host.
6131  * @phba: pointer to lpfc hba data structure.
6132  *
6133  * This routine is invoked to create HBA physical port and associate a SCSI
6134  * host with it.
6135  *
6136  * Return codes
6137  *      0 - successful
6138  *      other values - error
6139  **/
6140 static int
6141 lpfc_create_shost(struct lpfc_hba *phba)
6142 {
6143         struct lpfc_vport *vport;
6144         struct Scsi_Host  *shost;
6145
6146         /* Initialize HBA FC structure */
6147         phba->fc_edtov = FF_DEF_EDTOV;
6148         phba->fc_ratov = FF_DEF_RATOV;
6149         phba->fc_altov = FF_DEF_ALTOV;
6150         phba->fc_arbtov = FF_DEF_ARBTOV;
6151
6152         atomic_set(&phba->sdev_cnt, 0);
6153         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6154         if (!vport)
6155                 return -ENODEV;
6156
6157         shost = lpfc_shost_from_vport(vport);
6158         phba->pport = vport;
6159         lpfc_debugfs_initialize(vport);
6160         /* Put reference to SCSI host to driver's device private data */
6161         pci_set_drvdata(phba->pcidev, shost);
6162
6163         return 0;
6164 }
6165
6166 /**
6167  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6168  * @phba: pointer to lpfc hba data structure.
6169  *
6170  * This routine is invoked to destroy HBA physical port and the associated
6171  * SCSI host.
6172  **/
6173 static void
6174 lpfc_destroy_shost(struct lpfc_hba *phba)
6175 {
6176         struct lpfc_vport *vport = phba->pport;
6177
6178         /* Destroy physical port that associated with the SCSI host */
6179         destroy_port(vport);
6180
6181         return;
6182 }
6183
6184 /**
6185  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6186  * @phba: pointer to lpfc hba data structure.
6187  * @shost: the shost to be used to detect Block guard settings.
6188  *
6189  * This routine sets up the local Block guard protocol settings for @shost.
6190  * This routine also allocates memory for debugging bg buffers.
6191  **/
6192 static void
6193 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6194 {
6195         uint32_t old_mask;
6196         uint32_t old_guard;
6197
6198         int pagecnt = 10;
6199         if (lpfc_prot_mask && lpfc_prot_guard) {
6200                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6201                                 "1478 Registering BlockGuard with the "
6202                                 "SCSI layer\n");
6203
6204                 old_mask = lpfc_prot_mask;
6205                 old_guard = lpfc_prot_guard;
6206
6207                 /* Only allow supported values */
6208                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6209                         SHOST_DIX_TYPE0_PROTECTION |
6210                         SHOST_DIX_TYPE1_PROTECTION);
6211                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6212
6213                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6214                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6215                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6216
6217                 if (lpfc_prot_mask && lpfc_prot_guard) {
6218                         if ((old_mask != lpfc_prot_mask) ||
6219                                 (old_guard != lpfc_prot_guard))
6220                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6221                                         "1475 Registering BlockGuard with the "
6222                                         "SCSI layer: mask %d  guard %d\n",
6223                                         lpfc_prot_mask, lpfc_prot_guard);
6224
6225                         scsi_host_set_prot(shost, lpfc_prot_mask);
6226                         scsi_host_set_guard(shost, lpfc_prot_guard);
6227                 } else
6228                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6229                                 "1479 Not Registering BlockGuard with the SCSI "
6230                                 "layer, Bad protection parameters: %d %d\n",
6231                                 old_mask, old_guard);
6232         }
6233
6234         if (!_dump_buf_data) {
6235                 while (pagecnt) {
6236                         spin_lock_init(&_dump_buf_lock);
6237                         _dump_buf_data =
6238                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6239                         if (_dump_buf_data) {
6240                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6241                                         "9043 BLKGRD: allocated %d pages for "
6242                                        "_dump_buf_data at 0x%p\n",
6243                                        (1 << pagecnt), _dump_buf_data);
6244                                 _dump_buf_data_order = pagecnt;
6245                                 memset(_dump_buf_data, 0,
6246                                        ((1 << PAGE_SHIFT) << pagecnt));
6247                                 break;
6248                         } else
6249                                 --pagecnt;
6250                 }
6251                 if (!_dump_buf_data_order)
6252                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6253                                 "9044 BLKGRD: ERROR unable to allocate "
6254                                "memory for hexdump\n");
6255         } else
6256                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6257                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6258                        "\n", _dump_buf_data);
6259         if (!_dump_buf_dif) {
6260                 while (pagecnt) {
6261                         _dump_buf_dif =
6262                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6263                         if (_dump_buf_dif) {
6264                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6265                                         "9046 BLKGRD: allocated %d pages for "
6266                                        "_dump_buf_dif at 0x%p\n",
6267                                        (1 << pagecnt), _dump_buf_dif);
6268                                 _dump_buf_dif_order = pagecnt;
6269                                 memset(_dump_buf_dif, 0,
6270                                        ((1 << PAGE_SHIFT) << pagecnt));
6271                                 break;
6272                         } else
6273                                 --pagecnt;
6274                 }
6275                 if (!_dump_buf_dif_order)
6276                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6277                         "9047 BLKGRD: ERROR unable to allocate "
6278                                "memory for hexdump\n");
6279         } else
6280                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6281                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6282                        _dump_buf_dif);
6283 }
6284
6285 /**
6286  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6287  * @phba: pointer to lpfc hba data structure.
6288  *
6289  * This routine is invoked to perform all the necessary post initialization
6290  * setup for the device.
6291  **/
6292 static void
6293 lpfc_post_init_setup(struct lpfc_hba *phba)
6294 {
6295         struct Scsi_Host  *shost;
6296         struct lpfc_adapter_event_header adapter_event;
6297
6298         /* Get the default values for Model Name and Description */
6299         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6300
6301         /*
6302          * hba setup may have changed the hba_queue_depth so we need to
6303          * adjust the value of can_queue.
6304          */
6305         shost = pci_get_drvdata(phba->pcidev);
6306         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6307         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6308                 lpfc_setup_bg(phba, shost);
6309
6310         lpfc_host_attrib_init(shost);
6311
6312         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6313                 spin_lock_irq(shost->host_lock);
6314                 lpfc_poll_start_timer(phba);
6315                 spin_unlock_irq(shost->host_lock);
6316         }
6317
6318         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6319                         "0428 Perform SCSI scan\n");
6320         /* Send board arrival event to upper layer */
6321         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6322         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6323         fc_host_post_vendor_event(shost, fc_get_event_number(),
6324                                   sizeof(adapter_event),
6325                                   (char *) &adapter_event,
6326                                   LPFC_NL_VENDOR_ID);
6327         return;
6328 }
6329
6330 /**
6331  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6332  * @phba: pointer to lpfc hba data structure.
6333  *
6334  * This routine is invoked to set up the PCI device memory space for device
6335  * with SLI-3 interface spec.
6336  *
6337  * Return codes
6338  *      0 - successful
6339  *      other values - error
6340  **/
6341 static int
6342 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6343 {
6344         struct pci_dev *pdev;
6345         unsigned long bar0map_len, bar2map_len;
6346         int i, hbq_count;
6347         void *ptr;
6348         int error = -ENODEV;
6349
6350         /* Obtain PCI device reference */
6351         if (!phba->pcidev)
6352                 return error;
6353         else
6354                 pdev = phba->pcidev;
6355
6356         /* Set the device DMA mask size */
6357         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6358          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6359                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6360                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6361                         return error;
6362                 }
6363         }
6364
6365         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6366          * required by each mapping.
6367          */
6368         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6369         bar0map_len = pci_resource_len(pdev, 0);
6370
6371         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6372         bar2map_len = pci_resource_len(pdev, 2);
6373
6374         /* Map HBA SLIM to a kernel virtual address. */
6375         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6376         if (!phba->slim_memmap_p) {
6377                 dev_printk(KERN_ERR, &pdev->dev,
6378                            "ioremap failed for SLIM memory.\n");
6379                 goto out;
6380         }
6381
6382         /* Map HBA Control Registers to a kernel virtual address. */
6383         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6384         if (!phba->ctrl_regs_memmap_p) {
6385                 dev_printk(KERN_ERR, &pdev->dev,
6386                            "ioremap failed for HBA control registers.\n");
6387                 goto out_iounmap_slim;
6388         }
6389
6390         /* Allocate memory for SLI-2 structures */
6391         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6392                                                 &phba->slim2p.phys, GFP_KERNEL);
6393         if (!phba->slim2p.virt)
6394                 goto out_iounmap;
6395
6396         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6397         phba->mbox_ext = (phba->slim2p.virt +
6398                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6399         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6400         phba->IOCBs = (phba->slim2p.virt +
6401                        offsetof(struct lpfc_sli2_slim, IOCBs));
6402
6403         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6404                                                  lpfc_sli_hbq_size(),
6405                                                  &phba->hbqslimp.phys,
6406                                                  GFP_KERNEL);
6407         if (!phba->hbqslimp.virt)
6408                 goto out_free_slim;
6409
6410         hbq_count = lpfc_sli_hbq_count();
6411         ptr = phba->hbqslimp.virt;
6412         for (i = 0; i < hbq_count; ++i) {
6413                 phba->hbqs[i].hbq_virt = ptr;
6414                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6415                 ptr += (lpfc_hbq_defs[i]->entry_count *
6416                         sizeof(struct lpfc_hbq_entry));
6417         }
6418         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6419         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6420
6421         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6422
6423         INIT_LIST_HEAD(&phba->rb_pend_list);
6424
6425         phba->MBslimaddr = phba->slim_memmap_p;
6426         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6427         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6428         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6429         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6430
6431         return 0;
6432
6433 out_free_slim:
6434         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6435                           phba->slim2p.virt, phba->slim2p.phys);
6436 out_iounmap:
6437         iounmap(phba->ctrl_regs_memmap_p);
6438 out_iounmap_slim:
6439         iounmap(phba->slim_memmap_p);
6440 out:
6441         return error;
6442 }
6443
6444 /**
6445  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6446  * @phba: pointer to lpfc hba data structure.
6447  *
6448  * This routine is invoked to unset the PCI device memory space for device
6449  * with SLI-3 interface spec.
6450  **/
6451 static void
6452 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6453 {
6454         struct pci_dev *pdev;
6455
6456         /* Obtain PCI device reference */
6457         if (!phba->pcidev)
6458                 return;
6459         else
6460                 pdev = phba->pcidev;
6461
6462         /* Free coherent DMA memory allocated */
6463         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6464                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6465         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6466                           phba->slim2p.virt, phba->slim2p.phys);
6467
6468         /* I/O memory unmap */
6469         iounmap(phba->ctrl_regs_memmap_p);
6470         iounmap(phba->slim_memmap_p);
6471
6472         return;
6473 }
6474
6475 /**
6476  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6477  * @phba: pointer to lpfc hba data structure.
6478  *
6479  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6480  * done and check status.
6481  *
6482  * Return 0 if successful, otherwise -ENODEV.
6483  **/
6484 int
6485 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6486 {
6487         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6488         struct lpfc_register reg_data;
6489         int i, port_error = 0;
6490         uint32_t if_type;
6491
6492         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6493         memset(&reg_data, 0, sizeof(reg_data));
6494         if (!phba->sli4_hba.PSMPHRregaddr)
6495                 return -ENODEV;
6496
6497         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6498         for (i = 0; i < 3000; i++) {
6499                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6500                         &portsmphr_reg.word0) ||
6501                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6502                         /* Port has a fatal POST error, break out */
6503                         port_error = -ENODEV;
6504                         break;
6505                 }
6506                 if (LPFC_POST_STAGE_PORT_READY ==
6507                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6508                         break;
6509                 msleep(10);
6510         }
6511
6512         /*
6513          * If there was a port error during POST, then don't proceed with
6514          * other register reads as the data may not be valid.  Just exit.
6515          */
6516         if (port_error) {
6517                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6518                         "1408 Port Failed POST - portsmphr=0x%x, "
6519                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6520                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6521                         portsmphr_reg.word0,
6522                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6523                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6524                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6525                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6526                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6527                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6528                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6529                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6530         } else {
6531                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6532                                 "2534 Device Info: SLIFamily=0x%x, "
6533                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6534                                 "SLIHint_2=0x%x, FT=0x%x\n",
6535                                 bf_get(lpfc_sli_intf_sli_family,
6536                                        &phba->sli4_hba.sli_intf),
6537                                 bf_get(lpfc_sli_intf_slirev,
6538                                        &phba->sli4_hba.sli_intf),
6539                                 bf_get(lpfc_sli_intf_if_type,
6540                                        &phba->sli4_hba.sli_intf),
6541                                 bf_get(lpfc_sli_intf_sli_hint1,
6542                                        &phba->sli4_hba.sli_intf),
6543                                 bf_get(lpfc_sli_intf_sli_hint2,
6544                                        &phba->sli4_hba.sli_intf),
6545                                 bf_get(lpfc_sli_intf_func_type,
6546                                        &phba->sli4_hba.sli_intf));
6547                 /*
6548                  * Check for other Port errors during the initialization
6549                  * process.  Fail the load if the port did not come up
6550                  * correctly.
6551                  */
6552                 if_type = bf_get(lpfc_sli_intf_if_type,
6553                                  &phba->sli4_hba.sli_intf);
6554                 switch (if_type) {
6555                 case LPFC_SLI_INTF_IF_TYPE_0:
6556                         phba->sli4_hba.ue_mask_lo =
6557                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6558                         phba->sli4_hba.ue_mask_hi =
6559                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6560                         uerrlo_reg.word0 =
6561                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6562                         uerrhi_reg.word0 =
6563                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6564                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6565                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6566                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6567                                                 "1422 Unrecoverable Error "
6568                                                 "Detected during POST "
6569                                                 "uerr_lo_reg=0x%x, "
6570                                                 "uerr_hi_reg=0x%x, "
6571                                                 "ue_mask_lo_reg=0x%x, "
6572                                                 "ue_mask_hi_reg=0x%x\n",
6573                                                 uerrlo_reg.word0,
6574                                                 uerrhi_reg.word0,
6575                                                 phba->sli4_hba.ue_mask_lo,
6576                                                 phba->sli4_hba.ue_mask_hi);
6577                                 port_error = -ENODEV;
6578                         }
6579                         break;
6580                 case LPFC_SLI_INTF_IF_TYPE_2:
6581                         /* Final checks.  The port status should be clean. */
6582                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6583                                 &reg_data.word0) ||
6584                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6585                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6586                                 phba->work_status[0] =
6587                                         readl(phba->sli4_hba.u.if_type2.
6588                                               ERR1regaddr);
6589                                 phba->work_status[1] =
6590                                         readl(phba->sli4_hba.u.if_type2.
6591                                               ERR2regaddr);
6592                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6593                                         "2888 Unrecoverable port error "
6594                                         "following POST: port status reg "
6595                                         "0x%x, port_smphr reg 0x%x, "
6596                                         "error 1=0x%x, error 2=0x%x\n",
6597                                         reg_data.word0,
6598                                         portsmphr_reg.word0,
6599                                         phba->work_status[0],
6600                                         phba->work_status[1]);
6601                                 port_error = -ENODEV;
6602                         }
6603                         break;
6604                 case LPFC_SLI_INTF_IF_TYPE_1:
6605                 default:
6606                         break;
6607                 }
6608         }
6609         return port_error;
6610 }
6611
6612 /**
6613  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6614  * @phba: pointer to lpfc hba data structure.
6615  * @if_type:  The SLI4 interface type getting configured.
6616  *
6617  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6618  * memory map.
6619  **/
6620 static void
6621 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6622 {
6623         switch (if_type) {
6624         case LPFC_SLI_INTF_IF_TYPE_0:
6625                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6626                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6627                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6628                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6629                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6630                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6631                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6632                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6633                 phba->sli4_hba.SLIINTFregaddr =
6634                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6635                 break;
6636         case LPFC_SLI_INTF_IF_TYPE_2:
6637                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6638                         phba->sli4_hba.conf_regs_memmap_p +
6639                                                 LPFC_CTL_PORT_ER1_OFFSET;
6640                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6641                         phba->sli4_hba.conf_regs_memmap_p +
6642                                                 LPFC_CTL_PORT_ER2_OFFSET;
6643                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6644                         phba->sli4_hba.conf_regs_memmap_p +
6645                                                 LPFC_CTL_PORT_CTL_OFFSET;
6646                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6647                         phba->sli4_hba.conf_regs_memmap_p +
6648                                                 LPFC_CTL_PORT_STA_OFFSET;
6649                 phba->sli4_hba.SLIINTFregaddr =
6650                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6651                 phba->sli4_hba.PSMPHRregaddr =
6652                         phba->sli4_hba.conf_regs_memmap_p +
6653                                                 LPFC_CTL_PORT_SEM_OFFSET;
6654                 phba->sli4_hba.RQDBregaddr =
6655                         phba->sli4_hba.conf_regs_memmap_p +
6656                                                 LPFC_ULP0_RQ_DOORBELL;
6657                 phba->sli4_hba.WQDBregaddr =
6658                         phba->sli4_hba.conf_regs_memmap_p +
6659                                                 LPFC_ULP0_WQ_DOORBELL;
6660                 phba->sli4_hba.EQCQDBregaddr =
6661                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6662                 phba->sli4_hba.MQDBregaddr =
6663                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6664                 phba->sli4_hba.BMBXregaddr =
6665                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6666                 break;
6667         case LPFC_SLI_INTF_IF_TYPE_1:
6668         default:
6669                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6670                            "FATAL - unsupported SLI4 interface type - %d\n",
6671                            if_type);
6672                 break;
6673         }
6674 }
6675
6676 /**
6677  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6678  * @phba: pointer to lpfc hba data structure.
6679  *
6680  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6681  * memory map.
6682  **/
6683 static void
6684 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6685 {
6686         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6687                 LPFC_SLIPORT_IF0_SMPHR;
6688         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6689                 LPFC_HST_ISR0;
6690         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6691                 LPFC_HST_IMR0;
6692         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6693                 LPFC_HST_ISCR0;
6694 }
6695
6696 /**
6697  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6698  * @phba: pointer to lpfc hba data structure.
6699  * @vf: virtual function number
6700  *
6701  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6702  * based on the given viftual function number, @vf.
6703  *
6704  * Return 0 if successful, otherwise -ENODEV.
6705  **/
6706 static int
6707 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6708 {
6709         if (vf > LPFC_VIR_FUNC_MAX)
6710                 return -ENODEV;
6711
6712         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6713                                 vf * LPFC_VFR_PAGE_SIZE +
6714                                         LPFC_ULP0_RQ_DOORBELL);
6715         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6716                                 vf * LPFC_VFR_PAGE_SIZE +
6717                                         LPFC_ULP0_WQ_DOORBELL);
6718         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6719                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6720         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6721                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6722         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6723                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6724         return 0;
6725 }
6726
6727 /**
6728  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6729  * @phba: pointer to lpfc hba data structure.
6730  *
6731  * This routine is invoked to create the bootstrap mailbox
6732  * region consistent with the SLI-4 interface spec.  This
6733  * routine allocates all memory necessary to communicate
6734  * mailbox commands to the port and sets up all alignment
6735  * needs.  No locks are expected to be held when calling
6736  * this routine.
6737  *
6738  * Return codes
6739  *      0 - successful
6740  *      -ENOMEM - could not allocated memory.
6741  **/
6742 static int
6743 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6744 {
6745         uint32_t bmbx_size;
6746         struct lpfc_dmabuf *dmabuf;
6747         struct dma_address *dma_address;
6748         uint32_t pa_addr;
6749         uint64_t phys_addr;
6750
6751         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6752         if (!dmabuf)
6753                 return -ENOMEM;
6754
6755         /*
6756          * The bootstrap mailbox region is comprised of 2 parts
6757          * plus an alignment restriction of 16 bytes.
6758          */
6759         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6760         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6761                                            &dmabuf->phys, GFP_KERNEL);
6762         if (!dmabuf->virt) {
6763                 kfree(dmabuf);
6764                 return -ENOMEM;
6765         }
6766
6767         /*
6768          * Initialize the bootstrap mailbox pointers now so that the register
6769          * operations are simple later.  The mailbox dma address is required
6770          * to be 16-byte aligned.  Also align the virtual memory as each
6771          * maibox is copied into the bmbx mailbox region before issuing the
6772          * command to the port.
6773          */
6774         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6775         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6776
6777         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6778                                               LPFC_ALIGN_16_BYTE);
6779         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6780                                               LPFC_ALIGN_16_BYTE);
6781
6782         /*
6783          * Set the high and low physical addresses now.  The SLI4 alignment
6784          * requirement is 16 bytes and the mailbox is posted to the port
6785          * as two 30-bit addresses.  The other data is a bit marking whether
6786          * the 30-bit address is the high or low address.
6787          * Upcast bmbx aphys to 64bits so shift instruction compiles
6788          * clean on 32 bit machines.
6789          */
6790         dma_address = &phba->sli4_hba.bmbx.dma_address;
6791         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6792         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6793         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6794                                            LPFC_BMBX_BIT1_ADDR_HI);
6795
6796         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6797         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6798                                            LPFC_BMBX_BIT1_ADDR_LO);
6799         return 0;
6800 }
6801
6802 /**
6803  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6804  * @phba: pointer to lpfc hba data structure.
6805  *
6806  * This routine is invoked to teardown the bootstrap mailbox
6807  * region and release all host resources. This routine requires
6808  * the caller to ensure all mailbox commands recovered, no
6809  * additional mailbox comands are sent, and interrupts are disabled
6810  * before calling this routine.
6811  *
6812  **/
6813 static void
6814 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6815 {
6816         dma_free_coherent(&phba->pcidev->dev,
6817                           phba->sli4_hba.bmbx.bmbx_size,
6818                           phba->sli4_hba.bmbx.dmabuf->virt,
6819                           phba->sli4_hba.bmbx.dmabuf->phys);
6820
6821         kfree(phba->sli4_hba.bmbx.dmabuf);
6822         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6823 }
6824
6825 /**
6826  * lpfc_sli4_read_config - Get the config parameters.
6827  * @phba: pointer to lpfc hba data structure.
6828  *
6829  * This routine is invoked to read the configuration parameters from the HBA.
6830  * The configuration parameters are used to set the base and maximum values
6831  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6832  * allocation for the port.
6833  *
6834  * Return codes
6835  *      0 - successful
6836  *      -ENOMEM - No available memory
6837  *      -EIO - The mailbox failed to complete successfully.
6838  **/
6839 int
6840 lpfc_sli4_read_config(struct lpfc_hba *phba)
6841 {
6842         LPFC_MBOXQ_t *pmb;
6843         struct lpfc_mbx_read_config *rd_config;
6844         union  lpfc_sli4_cfg_shdr *shdr;
6845         uint32_t shdr_status, shdr_add_status;
6846         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6847         struct lpfc_rsrc_desc_fcfcoe *desc;
6848         char *pdesc_0;
6849         int length, i, rc = 0, rc2;
6850
6851         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6852         if (!pmb) {
6853                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6854                                 "2011 Unable to allocate memory for issuing "
6855                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6856                 return -ENOMEM;
6857         }
6858
6859         lpfc_read_config(phba, pmb);
6860
6861         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6862         if (rc != MBX_SUCCESS) {
6863                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6864                         "2012 Mailbox failed , mbxCmd x%x "
6865                         "READ_CONFIG, mbxStatus x%x\n",
6866                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6867                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6868                 rc = -EIO;
6869         } else {
6870                 rd_config = &pmb->u.mqe.un.rd_config;
6871                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6872                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6873                         phba->sli4_hba.lnk_info.lnk_tp =
6874                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6875                         phba->sli4_hba.lnk_info.lnk_no =
6876                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6877                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6878                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6879                                         phba->sli4_hba.lnk_info.lnk_tp,
6880                                         phba->sli4_hba.lnk_info.lnk_no);
6881                 } else
6882                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6883                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6884                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6885                 phba->sli4_hba.extents_in_use =
6886                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6887                 phba->sli4_hba.max_cfg_param.max_xri =
6888                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6889                 phba->sli4_hba.max_cfg_param.xri_base =
6890                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6891                 phba->sli4_hba.max_cfg_param.max_vpi =
6892                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6893                 phba->sli4_hba.max_cfg_param.vpi_base =
6894                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6895                 phba->sli4_hba.max_cfg_param.max_rpi =
6896                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6897                 phba->sli4_hba.max_cfg_param.rpi_base =
6898                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6899                 phba->sli4_hba.max_cfg_param.max_vfi =
6900                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6901                 phba->sli4_hba.max_cfg_param.vfi_base =
6902                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6903                 phba->sli4_hba.max_cfg_param.max_fcfi =
6904                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6905                 phba->sli4_hba.max_cfg_param.max_eq =
6906                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6907                 phba->sli4_hba.max_cfg_param.max_rq =
6908                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6909                 phba->sli4_hba.max_cfg_param.max_wq =
6910                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6911                 phba->sli4_hba.max_cfg_param.max_cq =
6912                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6913                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6914                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6915                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6916                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6917                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6918                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6919                 phba->max_vports = phba->max_vpi;
6920                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6921                                 "2003 cfg params Extents? %d "
6922                                 "XRI(B:%d M:%d), "
6923                                 "VPI(B:%d M:%d) "
6924                                 "VFI(B:%d M:%d) "
6925                                 "RPI(B:%d M:%d) "
6926                                 "FCFI(Count:%d)\n",
6927                                 phba->sli4_hba.extents_in_use,
6928                                 phba->sli4_hba.max_cfg_param.xri_base,
6929                                 phba->sli4_hba.max_cfg_param.max_xri,
6930                                 phba->sli4_hba.max_cfg_param.vpi_base,
6931                                 phba->sli4_hba.max_cfg_param.max_vpi,
6932                                 phba->sli4_hba.max_cfg_param.vfi_base,
6933                                 phba->sli4_hba.max_cfg_param.max_vfi,
6934                                 phba->sli4_hba.max_cfg_param.rpi_base,
6935                                 phba->sli4_hba.max_cfg_param.max_rpi,
6936                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6937         }
6938
6939         if (rc)
6940                 goto read_cfg_out;
6941
6942         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6943         length = phba->sli4_hba.max_cfg_param.max_xri -
6944                         lpfc_sli4_get_els_iocb_cnt(phba);
6945         if (phba->cfg_hba_queue_depth > length) {
6946                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6947                                 "3361 HBA queue depth changed from %d to %d\n",
6948                                 phba->cfg_hba_queue_depth, length);
6949                 phba->cfg_hba_queue_depth = length;
6950         }
6951
6952         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6953             LPFC_SLI_INTF_IF_TYPE_2)
6954                 goto read_cfg_out;
6955
6956         /* get the pf# and vf# for SLI4 if_type 2 port */
6957         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6958                   sizeof(struct lpfc_sli4_cfg_mhdr));
6959         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6960                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6961                          length, LPFC_SLI4_MBX_EMBED);
6962
6963         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6964         shdr = (union lpfc_sli4_cfg_shdr *)
6965                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6966         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6967         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6968         if (rc2 || shdr_status || shdr_add_status) {
6969                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6970                                 "3026 Mailbox failed , mbxCmd x%x "
6971                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6972                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6973                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6974                 goto read_cfg_out;
6975         }
6976
6977         /* search for fc_fcoe resrouce descriptor */
6978         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6979
6980         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6981         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6982         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6983         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6984                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6985         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6986                 goto read_cfg_out;
6987
6988         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6989                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6990                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6991                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6992                         phba->sli4_hba.iov.pf_number =
6993                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6994                         phba->sli4_hba.iov.vf_number =
6995                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6996                         break;
6997                 }
6998         }
6999
7000         if (i < LPFC_RSRC_DESC_MAX_NUM)
7001                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7002                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7003                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7004                                 phba->sli4_hba.iov.vf_number);
7005         else
7006                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7007                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7008                                 "Resrouce Descriptor:x%x\n",
7009                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7010
7011 read_cfg_out:
7012         mempool_free(pmb, phba->mbox_mem_pool);
7013         return rc;
7014 }
7015
7016 /**
7017  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7018  * @phba: pointer to lpfc hba data structure.
7019  *
7020  * This routine is invoked to setup the port-side endian order when
7021  * the port if_type is 0.  This routine has no function for other
7022  * if_types.
7023  *
7024  * Return codes
7025  *      0 - successful
7026  *      -ENOMEM - No available memory
7027  *      -EIO - The mailbox failed to complete successfully.
7028  **/
7029 static int
7030 lpfc_setup_endian_order(struct lpfc_hba *phba)
7031 {
7032         LPFC_MBOXQ_t *mboxq;
7033         uint32_t if_type, rc = 0;
7034         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7035                                       HOST_ENDIAN_HIGH_WORD1};
7036
7037         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7038         switch (if_type) {
7039         case LPFC_SLI_INTF_IF_TYPE_0:
7040                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7041                                                        GFP_KERNEL);
7042                 if (!mboxq) {
7043                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7044                                         "0492 Unable to allocate memory for "
7045                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7046                                         "command\n");
7047                         return -ENOMEM;
7048                 }
7049
7050                 /*
7051                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7052                  * two words to contain special data values and no other data.
7053                  */
7054                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7055                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7056                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7057                 if (rc != MBX_SUCCESS) {
7058                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7059                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7060                                         "failed with status x%x\n",
7061                                         rc);
7062                         rc = -EIO;
7063                 }
7064                 mempool_free(mboxq, phba->mbox_mem_pool);
7065                 break;
7066         case LPFC_SLI_INTF_IF_TYPE_2:
7067         case LPFC_SLI_INTF_IF_TYPE_1:
7068         default:
7069                 break;
7070         }
7071         return rc;
7072 }
7073
7074 /**
7075  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7076  * @phba: pointer to lpfc hba data structure.
7077  *
7078  * This routine is invoked to check the user settable queue counts for EQs and
7079  * CQs. after this routine is called the counts will be set to valid values that
7080  * adhere to the constraints of the system's interrupt vectors and the port's
7081  * queue resources.
7082  *
7083  * Return codes
7084  *      0 - successful
7085  *      -ENOMEM - No available memory
7086  **/
7087 static int
7088 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7089 {
7090         int cfg_fcp_io_channel;
7091         uint32_t cpu;
7092         uint32_t i = 0;
7093         int fof_vectors = phba->cfg_fof ? 1 : 0;
7094
7095         /*
7096          * Sanity check for configured queue parameters against the run-time
7097          * device parameters
7098          */
7099
7100         /* Sanity check on HBA EQ parameters */
7101         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7102
7103         /* It doesn't make sense to have more io channels then online CPUs */
7104         for_each_present_cpu(cpu) {
7105                 if (cpu_online(cpu))
7106                         i++;
7107         }
7108         phba->sli4_hba.num_online_cpu = i;
7109         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7110         phba->sli4_hba.curr_disp_cpu = 0;
7111
7112         if (i < cfg_fcp_io_channel) {
7113                 lpfc_printf_log(phba,
7114                                 KERN_ERR, LOG_INIT,
7115                                 "3188 Reducing IO channels to match number of "
7116                                 "online CPUs: from %d to %d\n",
7117                                 cfg_fcp_io_channel, i);
7118                 cfg_fcp_io_channel = i;
7119         }
7120
7121         if (cfg_fcp_io_channel + fof_vectors >
7122             phba->sli4_hba.max_cfg_param.max_eq) {
7123                 if (phba->sli4_hba.max_cfg_param.max_eq <
7124                     LPFC_FCP_IO_CHAN_MIN) {
7125                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7126                                         "2574 Not enough EQs (%d) from the "
7127                                         "pci function for supporting FCP "
7128                                         "EQs (%d)\n",
7129                                         phba->sli4_hba.max_cfg_param.max_eq,
7130                                         phba->cfg_fcp_io_channel);
7131                         goto out_error;
7132                 }
7133                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7134                                 "2575 Reducing IO channels to match number of "
7135                                 "available EQs: from %d to %d\n",
7136                                 cfg_fcp_io_channel,
7137                                 phba->sli4_hba.max_cfg_param.max_eq);
7138                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7139                         fof_vectors;
7140         }
7141
7142         /* The actual number of FCP event queues adopted */
7143         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7144
7145         /* Get EQ depth from module parameter, fake the default for now */
7146         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7147         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7148
7149         /* Get CQ depth from module parameter, fake the default for now */
7150         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7151         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7152
7153         return 0;
7154 out_error:
7155         return -ENOMEM;
7156 }
7157
7158 /**
7159  * lpfc_sli4_queue_create - Create all the SLI4 queues
7160  * @phba: pointer to lpfc hba data structure.
7161  *
7162  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7163  * operation. For each SLI4 queue type, the parameters such as queue entry
7164  * count (queue depth) shall be taken from the module parameter. For now,
7165  * we just use some constant number as place holder.
7166  *
7167  * Return codes
7168  *      0 - successful
7169  *      -ENOMEM - No availble memory
7170  *      -EIO - The mailbox failed to complete successfully.
7171  **/
7172 int
7173 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7174 {
7175         struct lpfc_queue *qdesc;
7176         int idx;
7177
7178         /*
7179          * Create HBA Record arrays.
7180          */
7181         if (!phba->cfg_fcp_io_channel)
7182                 return -ERANGE;
7183
7184         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7185         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7186         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7187         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7188         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7189         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7190
7191         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7192                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7193         if (!phba->sli4_hba.hba_eq) {
7194                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7195                         "2576 Failed allocate memory for "
7196                         "fast-path EQ record array\n");
7197                 goto out_error;
7198         }
7199
7200         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7201                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7202         if (!phba->sli4_hba.fcp_cq) {
7203                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7204                                 "2577 Failed allocate memory for fast-path "
7205                                 "CQ record array\n");
7206                 goto out_error;
7207         }
7208
7209         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7210                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7211         if (!phba->sli4_hba.fcp_wq) {
7212                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7213                                 "2578 Failed allocate memory for fast-path "
7214                                 "WQ record array\n");
7215                 goto out_error;
7216         }
7217
7218         /*
7219          * Since the first EQ can have multiple CQs associated with it,
7220          * this array is used to quickly see if we have a FCP fast-path
7221          * CQ match.
7222          */
7223         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7224                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7225         if (!phba->sli4_hba.fcp_cq_map) {
7226                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7227                                 "2545 Failed allocate memory for fast-path "
7228                                 "CQ map\n");
7229                 goto out_error;
7230         }
7231
7232         /*
7233          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7234          * how many EQs to create.
7235          */
7236         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7237
7238                 /* Create EQs */
7239                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7240                                               phba->sli4_hba.eq_ecount);
7241                 if (!qdesc) {
7242                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7243                                         "0497 Failed allocate EQ (%d)\n", idx);
7244                         goto out_error;
7245                 }
7246                 phba->sli4_hba.hba_eq[idx] = qdesc;
7247
7248                 /* Create Fast Path FCP CQs */
7249                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7250                                               phba->sli4_hba.cq_ecount);
7251                 if (!qdesc) {
7252                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7253                                         "0499 Failed allocate fast-path FCP "
7254                                         "CQ (%d)\n", idx);
7255                         goto out_error;
7256                 }
7257                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7258
7259                 /* Create Fast Path FCP WQs */
7260                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7261                                               phba->sli4_hba.wq_ecount);
7262                 if (!qdesc) {
7263                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264                                         "0503 Failed allocate fast-path FCP "
7265                                         "WQ (%d)\n", idx);
7266                         goto out_error;
7267                 }
7268                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7269         }
7270
7271
7272         /*
7273          * Create Slow Path Completion Queues (CQs)
7274          */
7275
7276         /* Create slow-path Mailbox Command Complete Queue */
7277         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7278                                       phba->sli4_hba.cq_ecount);
7279         if (!qdesc) {
7280                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7281                                 "0500 Failed allocate slow-path mailbox CQ\n");
7282                 goto out_error;
7283         }
7284         phba->sli4_hba.mbx_cq = qdesc;
7285
7286         /* Create slow-path ELS Complete Queue */
7287         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7288                                       phba->sli4_hba.cq_ecount);
7289         if (!qdesc) {
7290                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7291                                 "0501 Failed allocate slow-path ELS CQ\n");
7292                 goto out_error;
7293         }
7294         phba->sli4_hba.els_cq = qdesc;
7295
7296
7297         /*
7298          * Create Slow Path Work Queues (WQs)
7299          */
7300
7301         /* Create Mailbox Command Queue */
7302
7303         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7304                                       phba->sli4_hba.mq_ecount);
7305         if (!qdesc) {
7306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7307                                 "0505 Failed allocate slow-path MQ\n");
7308                 goto out_error;
7309         }
7310         phba->sli4_hba.mbx_wq = qdesc;
7311
7312         /*
7313          * Create ELS Work Queues
7314          */
7315
7316         /* Create slow-path ELS Work Queue */
7317         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7318                                       phba->sli4_hba.wq_ecount);
7319         if (!qdesc) {
7320                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7321                                 "0504 Failed allocate slow-path ELS WQ\n");
7322                 goto out_error;
7323         }
7324         phba->sli4_hba.els_wq = qdesc;
7325
7326         /*
7327          * Create Receive Queue (RQ)
7328          */
7329
7330         /* Create Receive Queue for header */
7331         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7332                                       phba->sli4_hba.rq_ecount);
7333         if (!qdesc) {
7334                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7335                                 "0506 Failed allocate receive HRQ\n");
7336                 goto out_error;
7337         }
7338         phba->sli4_hba.hdr_rq = qdesc;
7339
7340         /* Create Receive Queue for data */
7341         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7342                                       phba->sli4_hba.rq_ecount);
7343         if (!qdesc) {
7344                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7345                                 "0507 Failed allocate receive DRQ\n");
7346                 goto out_error;
7347         }
7348         phba->sli4_hba.dat_rq = qdesc;
7349
7350         /* Create the Queues needed for Flash Optimized Fabric operations */
7351         if (phba->cfg_fof)
7352                 lpfc_fof_queue_create(phba);
7353         return 0;
7354
7355 out_error:
7356         lpfc_sli4_queue_destroy(phba);
7357         return -ENOMEM;
7358 }
7359
7360 /**
7361  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7362  * @phba: pointer to lpfc hba data structure.
7363  *
7364  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7365  * operation.
7366  *
7367  * Return codes
7368  *      0 - successful
7369  *      -ENOMEM - No available memory
7370  *      -EIO - The mailbox failed to complete successfully.
7371  **/
7372 void
7373 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7374 {
7375         int idx;
7376
7377         if (phba->cfg_fof)
7378                 lpfc_fof_queue_destroy(phba);
7379
7380         if (phba->sli4_hba.hba_eq != NULL) {
7381                 /* Release HBA event queue */
7382                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7383                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7384                                 lpfc_sli4_queue_free(
7385                                         phba->sli4_hba.hba_eq[idx]);
7386                                 phba->sli4_hba.hba_eq[idx] = NULL;
7387                         }
7388                 }
7389                 kfree(phba->sli4_hba.hba_eq);
7390                 phba->sli4_hba.hba_eq = NULL;
7391         }
7392
7393         if (phba->sli4_hba.fcp_cq != NULL) {
7394                 /* Release FCP completion queue */
7395                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7396                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7397                                 lpfc_sli4_queue_free(
7398                                         phba->sli4_hba.fcp_cq[idx]);
7399                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7400                         }
7401                 }
7402                 kfree(phba->sli4_hba.fcp_cq);
7403                 phba->sli4_hba.fcp_cq = NULL;
7404         }
7405
7406         if (phba->sli4_hba.fcp_wq != NULL) {
7407                 /* Release FCP work queue */
7408                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7409                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7410                                 lpfc_sli4_queue_free(
7411                                         phba->sli4_hba.fcp_wq[idx]);
7412                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7413                         }
7414                 }
7415                 kfree(phba->sli4_hba.fcp_wq);
7416                 phba->sli4_hba.fcp_wq = NULL;
7417         }
7418
7419         /* Release FCP CQ mapping array */
7420         if (phba->sli4_hba.fcp_cq_map != NULL) {
7421                 kfree(phba->sli4_hba.fcp_cq_map);
7422                 phba->sli4_hba.fcp_cq_map = NULL;
7423         }
7424
7425         /* Release mailbox command work queue */
7426         if (phba->sli4_hba.mbx_wq != NULL) {
7427                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7428                 phba->sli4_hba.mbx_wq = NULL;
7429         }
7430
7431         /* Release ELS work queue */
7432         if (phba->sli4_hba.els_wq != NULL) {
7433                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7434                 phba->sli4_hba.els_wq = NULL;
7435         }
7436
7437         /* Release unsolicited receive queue */
7438         if (phba->sli4_hba.hdr_rq != NULL) {
7439                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7440                 phba->sli4_hba.hdr_rq = NULL;
7441         }
7442         if (phba->sli4_hba.dat_rq != NULL) {
7443                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7444                 phba->sli4_hba.dat_rq = NULL;
7445         }
7446
7447         /* Release ELS complete queue */
7448         if (phba->sli4_hba.els_cq != NULL) {
7449                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7450                 phba->sli4_hba.els_cq = NULL;
7451         }
7452
7453         /* Release mailbox command complete queue */
7454         if (phba->sli4_hba.mbx_cq != NULL) {
7455                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7456                 phba->sli4_hba.mbx_cq = NULL;
7457         }
7458
7459         return;
7460 }
7461
7462 /**
7463  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7464  * @phba: pointer to lpfc hba data structure.
7465  *
7466  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7467  * operation.
7468  *
7469  * Return codes
7470  *      0 - successful
7471  *      -ENOMEM - No available memory
7472  *      -EIO - The mailbox failed to complete successfully.
7473  **/
7474 int
7475 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7476 {
7477         struct lpfc_sli *psli = &phba->sli;
7478         struct lpfc_sli_ring *pring;
7479         int rc = -ENOMEM;
7480         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7481         int fcp_cq_index = 0;
7482         uint32_t shdr_status, shdr_add_status;
7483         union lpfc_sli4_cfg_shdr *shdr;
7484         LPFC_MBOXQ_t *mboxq;
7485         uint32_t length;
7486
7487         /* Check for dual-ULP support */
7488         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7489         if (!mboxq) {
7490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7491                                 "3249 Unable to allocate memory for "
7492                                 "QUERY_FW_CFG mailbox command\n");
7493                 return -ENOMEM;
7494         }
7495         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7496                   sizeof(struct lpfc_sli4_cfg_mhdr));
7497         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7498                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7499                          length, LPFC_SLI4_MBX_EMBED);
7500
7501         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7502
7503         shdr = (union lpfc_sli4_cfg_shdr *)
7504                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7505         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7506         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7507         if (shdr_status || shdr_add_status || rc) {
7508                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7509                                 "3250 QUERY_FW_CFG mailbox failed with status "
7510                                 "x%x add_status x%x, mbx status x%x\n",
7511                                 shdr_status, shdr_add_status, rc);
7512                 if (rc != MBX_TIMEOUT)
7513                         mempool_free(mboxq, phba->mbox_mem_pool);
7514                 rc = -ENXIO;
7515                 goto out_error;
7516         }
7517
7518         phba->sli4_hba.fw_func_mode =
7519                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7520         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7521         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7522         phba->sli4_hba.physical_port =
7523                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7524         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7525                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7526                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7527                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7528
7529         if (rc != MBX_TIMEOUT)
7530                 mempool_free(mboxq, phba->mbox_mem_pool);
7531
7532         /*
7533          * Set up HBA Event Queues (EQs)
7534          */
7535
7536         /* Set up HBA event queue */
7537         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7538                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7539                                 "3147 Fast-path EQs not allocated\n");
7540                 rc = -ENOMEM;
7541                 goto out_error;
7542         }
7543         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7544                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7545                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7546                                         "0522 Fast-path EQ (%d) not "
7547                                         "allocated\n", fcp_eqidx);
7548                         rc = -ENOMEM;
7549                         goto out_destroy_hba_eq;
7550                 }
7551                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7552                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7553                 if (rc) {
7554                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7555                                         "0523 Failed setup of fast-path EQ "
7556                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7557                                         (uint32_t)rc);
7558                         goto out_destroy_hba_eq;
7559                 }
7560                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7561                                 "2584 HBA EQ setup: "
7562                                 "queue[%d]-id=%d\n", fcp_eqidx,
7563                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7564         }
7565
7566         /* Set up fast-path FCP Response Complete Queue */
7567         if (!phba->sli4_hba.fcp_cq) {
7568                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7569                                 "3148 Fast-path FCP CQ array not "
7570                                 "allocated\n");
7571                 rc = -ENOMEM;
7572                 goto out_destroy_hba_eq;
7573         }
7574
7575         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7576                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7577                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7578                                         "0526 Fast-path FCP CQ (%d) not "
7579                                         "allocated\n", fcp_cqidx);
7580                         rc = -ENOMEM;
7581                         goto out_destroy_fcp_cq;
7582                 }
7583                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7584                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7585                 if (rc) {
7586                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7587                                         "0527 Failed setup of fast-path FCP "
7588                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7589                                         (uint32_t)rc);
7590                         goto out_destroy_fcp_cq;
7591                 }
7592
7593                 /* Setup fcp_cq_map for fast lookup */
7594                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7595                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7596
7597                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7598                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7599                                 "parent seq[%d]-id=%d\n",
7600                                 fcp_cqidx,
7601                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7602                                 fcp_cqidx,
7603                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7604         }
7605
7606         /* Set up fast-path FCP Work Queue */
7607         if (!phba->sli4_hba.fcp_wq) {
7608                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7609                                 "3149 Fast-path FCP WQ array not "
7610                                 "allocated\n");
7611                 rc = -ENOMEM;
7612                 goto out_destroy_fcp_cq;
7613         }
7614
7615         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7616                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7617                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7618                                         "0534 Fast-path FCP WQ (%d) not "
7619                                         "allocated\n", fcp_wqidx);
7620                         rc = -ENOMEM;
7621                         goto out_destroy_fcp_wq;
7622                 }
7623                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7624                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7625                                     LPFC_FCP);
7626                 if (rc) {
7627                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7628                                         "0535 Failed setup of fast-path FCP "
7629                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7630                                         (uint32_t)rc);
7631                         goto out_destroy_fcp_wq;
7632                 }
7633
7634                 /* Bind this WQ to the next FCP ring */
7635                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7636                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7637                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7638
7639                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7640                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7641                                 "parent cq[%d]-id=%d\n",
7642                                 fcp_wqidx,
7643                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7644                                 fcp_cq_index,
7645                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7646         }
7647         /*
7648          * Set up Complete Queues (CQs)
7649          */
7650
7651         /* Set up slow-path MBOX Complete Queue as the first CQ */
7652         if (!phba->sli4_hba.mbx_cq) {
7653                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7654                                 "0528 Mailbox CQ not allocated\n");
7655                 rc = -ENOMEM;
7656                 goto out_destroy_fcp_wq;
7657         }
7658         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7659                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7660         if (rc) {
7661                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7662                                 "0529 Failed setup of slow-path mailbox CQ: "
7663                                 "rc = 0x%x\n", (uint32_t)rc);
7664                 goto out_destroy_fcp_wq;
7665         }
7666         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7667                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7668                         phba->sli4_hba.mbx_cq->queue_id,
7669                         phba->sli4_hba.hba_eq[0]->queue_id);
7670
7671         /* Set up slow-path ELS Complete Queue */
7672         if (!phba->sli4_hba.els_cq) {
7673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7674                                 "0530 ELS CQ not allocated\n");
7675                 rc = -ENOMEM;
7676                 goto out_destroy_mbx_cq;
7677         }
7678         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7679                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7680         if (rc) {
7681                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7682                                 "0531 Failed setup of slow-path ELS CQ: "
7683                                 "rc = 0x%x\n", (uint32_t)rc);
7684                 goto out_destroy_mbx_cq;
7685         }
7686         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7687                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7688                         phba->sli4_hba.els_cq->queue_id,
7689                         phba->sli4_hba.hba_eq[0]->queue_id);
7690
7691         /*
7692          * Set up all the Work Queues (WQs)
7693          */
7694
7695         /* Set up Mailbox Command Queue */
7696         if (!phba->sli4_hba.mbx_wq) {
7697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7698                                 "0538 Slow-path MQ not allocated\n");
7699                 rc = -ENOMEM;
7700                 goto out_destroy_els_cq;
7701         }
7702         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7703                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7704         if (rc) {
7705                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7706                                 "0539 Failed setup of slow-path MQ: "
7707                                 "rc = 0x%x\n", rc);
7708                 goto out_destroy_els_cq;
7709         }
7710         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7711                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7712                         phba->sli4_hba.mbx_wq->queue_id,
7713                         phba->sli4_hba.mbx_cq->queue_id);
7714
7715         /* Set up slow-path ELS Work Queue */
7716         if (!phba->sli4_hba.els_wq) {
7717                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7718                                 "0536 Slow-path ELS WQ not allocated\n");
7719                 rc = -ENOMEM;
7720                 goto out_destroy_mbx_wq;
7721         }
7722         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7723                             phba->sli4_hba.els_cq, LPFC_ELS);
7724         if (rc) {
7725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7726                                 "0537 Failed setup of slow-path ELS WQ: "
7727                                 "rc = 0x%x\n", (uint32_t)rc);
7728                 goto out_destroy_mbx_wq;
7729         }
7730
7731         /* Bind this WQ to the ELS ring */
7732         pring = &psli->ring[LPFC_ELS_RING];
7733         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7734         phba->sli4_hba.els_cq->pring = pring;
7735
7736         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7737                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7738                         phba->sli4_hba.els_wq->queue_id,
7739                         phba->sli4_hba.els_cq->queue_id);
7740
7741         /*
7742          * Create Receive Queue (RQ)
7743          */
7744         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7746                                 "0540 Receive Queue not allocated\n");
7747                 rc = -ENOMEM;
7748                 goto out_destroy_els_wq;
7749         }
7750
7751         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7752         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7753
7754         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7755                             phba->sli4_hba.els_cq, LPFC_USOL);
7756         if (rc) {
7757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7758                                 "0541 Failed setup of Receive Queue: "
7759                                 "rc = 0x%x\n", (uint32_t)rc);
7760                 goto out_destroy_fcp_wq;
7761         }
7762
7763         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7764                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7765                         "parent cq-id=%d\n",
7766                         phba->sli4_hba.hdr_rq->queue_id,
7767                         phba->sli4_hba.dat_rq->queue_id,
7768                         phba->sli4_hba.els_cq->queue_id);
7769
7770         if (phba->cfg_fof) {
7771                 rc = lpfc_fof_queue_setup(phba);
7772                 if (rc) {
7773                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7774                                         "0549 Failed setup of FOF Queues: "
7775                                         "rc = 0x%x\n", rc);
7776                         goto out_destroy_els_rq;
7777                 }
7778         }
7779
7780         /*
7781          * Configure EQ delay multipier for interrupt coalescing using
7782          * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7783          */
7784         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7785                         fcp_eqidx += LPFC_MAX_EQ_DELAY)
7786                 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7787         return 0;
7788
7789 out_destroy_els_rq:
7790         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7791 out_destroy_els_wq:
7792         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7793 out_destroy_mbx_wq:
7794         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7795 out_destroy_els_cq:
7796         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7797 out_destroy_mbx_cq:
7798         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7799 out_destroy_fcp_wq:
7800         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7801                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7802 out_destroy_fcp_cq:
7803         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7804                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7805 out_destroy_hba_eq:
7806         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7807                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7808 out_error:
7809         return rc;
7810 }
7811
7812 /**
7813  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7814  * @phba: pointer to lpfc hba data structure.
7815  *
7816  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7817  * operation.
7818  *
7819  * Return codes
7820  *      0 - successful
7821  *      -ENOMEM - No available memory
7822  *      -EIO - The mailbox failed to complete successfully.
7823  **/
7824 void
7825 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7826 {
7827         int fcp_qidx;
7828
7829         /* Unset the queues created for Flash Optimized Fabric operations */
7830         if (phba->cfg_fof)
7831                 lpfc_fof_queue_destroy(phba);
7832         /* Unset mailbox command work queue */
7833         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7834         /* Unset ELS work queue */
7835         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7836         /* Unset unsolicited receive queue */
7837         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7838         /* Unset FCP work queue */
7839         if (phba->sli4_hba.fcp_wq) {
7840                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7841                      fcp_qidx++)
7842                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7843         }
7844         /* Unset mailbox command complete queue */
7845         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7846         /* Unset ELS complete queue */
7847         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7848         /* Unset FCP response complete queue */
7849         if (phba->sli4_hba.fcp_cq) {
7850                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7851                      fcp_qidx++)
7852                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7853         }
7854         /* Unset fast-path event queue */
7855         if (phba->sli4_hba.hba_eq) {
7856                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7857                      fcp_qidx++)
7858                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7859         }
7860 }
7861
7862 /**
7863  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7864  * @phba: pointer to lpfc hba data structure.
7865  *
7866  * This routine is invoked to allocate and set up a pool of completion queue
7867  * events. The body of the completion queue event is a completion queue entry
7868  * CQE. For now, this pool is used for the interrupt service routine to queue
7869  * the following HBA completion queue events for the worker thread to process:
7870  *   - Mailbox asynchronous events
7871  *   - Receive queue completion unsolicited events
7872  * Later, this can be used for all the slow-path events.
7873  *
7874  * Return codes
7875  *      0 - successful
7876  *      -ENOMEM - No available memory
7877  **/
7878 static int
7879 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7880 {
7881         struct lpfc_cq_event *cq_event;
7882         int i;
7883
7884         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7885                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7886                 if (!cq_event)
7887                         goto out_pool_create_fail;
7888                 list_add_tail(&cq_event->list,
7889                               &phba->sli4_hba.sp_cqe_event_pool);
7890         }
7891         return 0;
7892
7893 out_pool_create_fail:
7894         lpfc_sli4_cq_event_pool_destroy(phba);
7895         return -ENOMEM;
7896 }
7897
7898 /**
7899  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7900  * @phba: pointer to lpfc hba data structure.
7901  *
7902  * This routine is invoked to free the pool of completion queue events at
7903  * driver unload time. Note that, it is the responsibility of the driver
7904  * cleanup routine to free all the outstanding completion-queue events
7905  * allocated from this pool back into the pool before invoking this routine
7906  * to destroy the pool.
7907  **/
7908 static void
7909 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7910 {
7911         struct lpfc_cq_event *cq_event, *next_cq_event;
7912
7913         list_for_each_entry_safe(cq_event, next_cq_event,
7914                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7915                 list_del(&cq_event->list);
7916                 kfree(cq_event);
7917         }
7918 }
7919
7920 /**
7921  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7922  * @phba: pointer to lpfc hba data structure.
7923  *
7924  * This routine is the lock free version of the API invoked to allocate a
7925  * completion-queue event from the free pool.
7926  *
7927  * Return: Pointer to the newly allocated completion-queue event if successful
7928  *         NULL otherwise.
7929  **/
7930 struct lpfc_cq_event *
7931 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7932 {
7933         struct lpfc_cq_event *cq_event = NULL;
7934
7935         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7936                          struct lpfc_cq_event, list);
7937         return cq_event;
7938 }
7939
7940 /**
7941  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7942  * @phba: pointer to lpfc hba data structure.
7943  *
7944  * This routine is the lock version of the API invoked to allocate a
7945  * completion-queue event from the free pool.
7946  *
7947  * Return: Pointer to the newly allocated completion-queue event if successful
7948  *         NULL otherwise.
7949  **/
7950 struct lpfc_cq_event *
7951 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7952 {
7953         struct lpfc_cq_event *cq_event;
7954         unsigned long iflags;
7955
7956         spin_lock_irqsave(&phba->hbalock, iflags);
7957         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7958         spin_unlock_irqrestore(&phba->hbalock, iflags);
7959         return cq_event;
7960 }
7961
7962 /**
7963  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7964  * @phba: pointer to lpfc hba data structure.
7965  * @cq_event: pointer to the completion queue event to be freed.
7966  *
7967  * This routine is the lock free version of the API invoked to release a
7968  * completion-queue event back into the free pool.
7969  **/
7970 void
7971 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7972                              struct lpfc_cq_event *cq_event)
7973 {
7974         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7975 }
7976
7977 /**
7978  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7979  * @phba: pointer to lpfc hba data structure.
7980  * @cq_event: pointer to the completion queue event to be freed.
7981  *
7982  * This routine is the lock version of the API invoked to release a
7983  * completion-queue event back into the free pool.
7984  **/
7985 void
7986 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7987                            struct lpfc_cq_event *cq_event)
7988 {
7989         unsigned long iflags;
7990         spin_lock_irqsave(&phba->hbalock, iflags);
7991         __lpfc_sli4_cq_event_release(phba, cq_event);
7992         spin_unlock_irqrestore(&phba->hbalock, iflags);
7993 }
7994
7995 /**
7996  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7997  * @phba: pointer to lpfc hba data structure.
7998  *
7999  * This routine is to free all the pending completion-queue events to the
8000  * back into the free pool for device reset.
8001  **/
8002 static void
8003 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8004 {
8005         LIST_HEAD(cqelist);
8006         struct lpfc_cq_event *cqe;
8007         unsigned long iflags;
8008
8009         /* Retrieve all the pending WCQEs from pending WCQE lists */
8010         spin_lock_irqsave(&phba->hbalock, iflags);
8011         /* Pending FCP XRI abort events */
8012         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8013                          &cqelist);
8014         /* Pending ELS XRI abort events */
8015         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8016                          &cqelist);
8017         /* Pending asynnc events */
8018         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8019                          &cqelist);
8020         spin_unlock_irqrestore(&phba->hbalock, iflags);
8021
8022         while (!list_empty(&cqelist)) {
8023                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8024                 lpfc_sli4_cq_event_release(phba, cqe);
8025         }
8026 }
8027
8028 /**
8029  * lpfc_pci_function_reset - Reset pci function.
8030  * @phba: pointer to lpfc hba data structure.
8031  *
8032  * This routine is invoked to request a PCI function reset. It will destroys
8033  * all resources assigned to the PCI function which originates this request.
8034  *
8035  * Return codes
8036  *      0 - successful
8037  *      -ENOMEM - No available memory
8038  *      -EIO - The mailbox failed to complete successfully.
8039  **/
8040 int
8041 lpfc_pci_function_reset(struct lpfc_hba *phba)
8042 {
8043         LPFC_MBOXQ_t *mboxq;
8044         uint32_t rc = 0, if_type;
8045         uint32_t shdr_status, shdr_add_status;
8046         uint32_t rdy_chk;
8047         uint32_t port_reset = 0;
8048         union lpfc_sli4_cfg_shdr *shdr;
8049         struct lpfc_register reg_data;
8050         uint16_t devid;
8051
8052         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8053         switch (if_type) {
8054         case LPFC_SLI_INTF_IF_TYPE_0:
8055                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8056                                                        GFP_KERNEL);
8057                 if (!mboxq) {
8058                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8059                                         "0494 Unable to allocate memory for "
8060                                         "issuing SLI_FUNCTION_RESET mailbox "
8061                                         "command\n");
8062                         return -ENOMEM;
8063                 }
8064
8065                 /* Setup PCI function reset mailbox-ioctl command */
8066                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8067                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8068                                  LPFC_SLI4_MBX_EMBED);
8069                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8070                 shdr = (union lpfc_sli4_cfg_shdr *)
8071                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8072                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8073                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8074                                          &shdr->response);
8075                 if (rc != MBX_TIMEOUT)
8076                         mempool_free(mboxq, phba->mbox_mem_pool);
8077                 if (shdr_status || shdr_add_status || rc) {
8078                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8079                                         "0495 SLI_FUNCTION_RESET mailbox "
8080                                         "failed with status x%x add_status x%x,"
8081                                         " mbx status x%x\n",
8082                                         shdr_status, shdr_add_status, rc);
8083                         rc = -ENXIO;
8084                 }
8085                 break;
8086         case LPFC_SLI_INTF_IF_TYPE_2:
8087 wait:
8088                 /*
8089                  * Poll the Port Status Register and wait for RDY for
8090                  * up to 30 seconds. If the port doesn't respond, treat
8091                  * it as an error.
8092                  */
8093                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8094                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8095                                 STATUSregaddr, &reg_data.word0)) {
8096                                 rc = -ENODEV;
8097                                 goto out;
8098                         }
8099                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8100                                 break;
8101                         msleep(20);
8102                 }
8103
8104                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8105                         phba->work_status[0] = readl(
8106                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8107                         phba->work_status[1] = readl(
8108                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8109                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8110                                         "2890 Port not ready, port status reg "
8111                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8112                                         reg_data.word0,
8113                                         phba->work_status[0],
8114                                         phba->work_status[1]);
8115                         rc = -ENODEV;
8116                         goto out;
8117                 }
8118
8119                 if (!port_reset) {
8120                         /*
8121                          * Reset the port now
8122                          */
8123                         reg_data.word0 = 0;
8124                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8125                                LPFC_SLIPORT_LITTLE_ENDIAN);
8126                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8127                                LPFC_SLIPORT_INIT_PORT);
8128                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8129                                CTRLregaddr);
8130                         /* flush */
8131                         pci_read_config_word(phba->pcidev,
8132                                              PCI_DEVICE_ID, &devid);
8133
8134                         port_reset = 1;
8135                         msleep(20);
8136                         goto wait;
8137                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8138                         rc = -ENODEV;
8139                         goto out;
8140                 }
8141                 break;
8142
8143         case LPFC_SLI_INTF_IF_TYPE_1:
8144         default:
8145                 break;
8146         }
8147
8148 out:
8149         /* Catch the not-ready port failure after a port reset. */
8150         if (rc) {
8151                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8152                                 "3317 HBA not functional: IP Reset Failed "
8153                                 "try: echo fw_reset > board_mode\n");
8154                 rc = -ENODEV;
8155         }
8156
8157         return rc;
8158 }
8159
8160 /**
8161  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8162  * @phba: pointer to lpfc hba data structure.
8163  *
8164  * This routine is invoked to set up the PCI device memory space for device
8165  * with SLI-4 interface spec.
8166  *
8167  * Return codes
8168  *      0 - successful
8169  *      other values - error
8170  **/
8171 static int
8172 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8173 {
8174         struct pci_dev *pdev;
8175         unsigned long bar0map_len, bar1map_len, bar2map_len;
8176         int error = -ENODEV;
8177         uint32_t if_type;
8178
8179         /* Obtain PCI device reference */
8180         if (!phba->pcidev)
8181                 return error;
8182         else
8183                 pdev = phba->pcidev;
8184
8185         /* Set the device DMA mask size */
8186         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8187          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8188                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8189                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8190                         return error;
8191                 }
8192         }
8193
8194         /*
8195          * The BARs and register set definitions and offset locations are
8196          * dependent on the if_type.
8197          */
8198         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8199                                   &phba->sli4_hba.sli_intf.word0)) {
8200                 return error;
8201         }
8202
8203         /* There is no SLI3 failback for SLI4 devices. */
8204         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8205             LPFC_SLI_INTF_VALID) {
8206                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8207                                 "2894 SLI_INTF reg contents invalid "
8208                                 "sli_intf reg 0x%x\n",
8209                                 phba->sli4_hba.sli_intf.word0);
8210                 return error;
8211         }
8212
8213         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8214         /*
8215          * Get the bus address of SLI4 device Bar regions and the
8216          * number of bytes required by each mapping. The mapping of the
8217          * particular PCI BARs regions is dependent on the type of
8218          * SLI4 device.
8219          */
8220         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8221                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8222                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8223
8224                 /*
8225                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8226                  * addr
8227                  */
8228                 phba->sli4_hba.conf_regs_memmap_p =
8229                         ioremap(phba->pci_bar0_map, bar0map_len);
8230                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8231                         dev_printk(KERN_ERR, &pdev->dev,
8232                                    "ioremap failed for SLI4 PCI config "
8233                                    "registers.\n");
8234                         goto out;
8235                 }
8236                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8237                 /* Set up BAR0 PCI config space register memory map */
8238                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8239         } else {
8240                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8241                 bar0map_len = pci_resource_len(pdev, 1);
8242                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8243                         dev_printk(KERN_ERR, &pdev->dev,
8244                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8245                         goto out;
8246                 }
8247                 phba->sli4_hba.conf_regs_memmap_p =
8248                                 ioremap(phba->pci_bar0_map, bar0map_len);
8249                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8250                         dev_printk(KERN_ERR, &pdev->dev,
8251                                 "ioremap failed for SLI4 PCI config "
8252                                 "registers.\n");
8253                                 goto out;
8254                 }
8255                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8256         }
8257
8258         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8259             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8260                 /*
8261                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8262                  * virtual address and setup the registers.
8263                  */
8264                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8265                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8266                 phba->sli4_hba.ctrl_regs_memmap_p =
8267                                 ioremap(phba->pci_bar1_map, bar1map_len);
8268                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8269                         dev_printk(KERN_ERR, &pdev->dev,
8270                            "ioremap failed for SLI4 HBA control registers.\n");
8271                         goto out_iounmap_conf;
8272                 }
8273                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8274                 lpfc_sli4_bar1_register_memmap(phba);
8275         }
8276
8277         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8278             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8279                 /*
8280                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8281                  * virtual address and setup the registers.
8282                  */
8283                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8284                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8285                 phba->sli4_hba.drbl_regs_memmap_p =
8286                                 ioremap(phba->pci_bar2_map, bar2map_len);
8287                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8288                         dev_printk(KERN_ERR, &pdev->dev,
8289                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8290                         goto out_iounmap_ctrl;
8291                 }
8292                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8293                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8294                 if (error)
8295                         goto out_iounmap_all;
8296         }
8297
8298         return 0;
8299
8300 out_iounmap_all:
8301         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8302 out_iounmap_ctrl:
8303         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8304 out_iounmap_conf:
8305         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8306 out:
8307         return error;
8308 }
8309
8310 /**
8311  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8312  * @phba: pointer to lpfc hba data structure.
8313  *
8314  * This routine is invoked to unset the PCI device memory space for device
8315  * with SLI-4 interface spec.
8316  **/
8317 static void
8318 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8319 {
8320         uint32_t if_type;
8321         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8322
8323         switch (if_type) {
8324         case LPFC_SLI_INTF_IF_TYPE_0:
8325                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8326                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8327                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8328                 break;
8329         case LPFC_SLI_INTF_IF_TYPE_2:
8330                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8331                 break;
8332         case LPFC_SLI_INTF_IF_TYPE_1:
8333         default:
8334                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8335                            "FATAL - unsupported SLI4 interface type - %d\n",
8336                            if_type);
8337                 break;
8338         }
8339 }
8340
8341 /**
8342  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8343  * @phba: pointer to lpfc hba data structure.
8344  *
8345  * This routine is invoked to enable the MSI-X interrupt vectors to device
8346  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8347  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8348  * once invoked, enables either all or nothing, depending on the current
8349  * availability of PCI vector resources. The device driver is responsible
8350  * for calling the individual request_irq() to register each MSI-X vector
8351  * with a interrupt handler, which is done in this function. Note that
8352  * later when device is unloading, the driver should always call free_irq()
8353  * on all MSI-X vectors it has done request_irq() on before calling
8354  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8355  * will be left with MSI-X enabled and leaks its vectors.
8356  *
8357  * Return codes
8358  *   0 - successful
8359  *   other values - error
8360  **/
8361 static int
8362 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8363 {
8364         int rc, i;
8365         LPFC_MBOXQ_t *pmb;
8366
8367         /* Set up MSI-X multi-message vectors */
8368         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8369                 phba->msix_entries[i].entry = i;
8370
8371         /* Configure MSI-X capability structure */
8372         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8373                                    LPFC_MSIX_VECTORS);
8374         if (rc) {
8375                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8376                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8377                 goto vec_fail_out;
8378         }
8379         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8380                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8381                                 "0477 MSI-X entry[%d]: vector=x%x "
8382                                 "message=%d\n", i,
8383                                 phba->msix_entries[i].vector,
8384                                 phba->msix_entries[i].entry);
8385         /*
8386          * Assign MSI-X vectors to interrupt handlers
8387          */
8388
8389         /* vector-0 is associated to slow-path handler */
8390         rc = request_irq(phba->msix_entries[0].vector,
8391                          &lpfc_sli_sp_intr_handler, 0,
8392                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8393         if (rc) {
8394                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8395                                 "0421 MSI-X slow-path request_irq failed "
8396                                 "(%d)\n", rc);
8397                 goto msi_fail_out;
8398         }
8399
8400         /* vector-1 is associated to fast-path handler */
8401         rc = request_irq(phba->msix_entries[1].vector,
8402                          &lpfc_sli_fp_intr_handler, 0,
8403                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8404
8405         if (rc) {
8406                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8407                                 "0429 MSI-X fast-path request_irq failed "
8408                                 "(%d)\n", rc);
8409                 goto irq_fail_out;
8410         }
8411
8412         /*
8413          * Configure HBA MSI-X attention conditions to messages
8414          */
8415         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8416
8417         if (!pmb) {
8418                 rc = -ENOMEM;
8419                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8420                                 "0474 Unable to allocate memory for issuing "
8421                                 "MBOX_CONFIG_MSI command\n");
8422                 goto mem_fail_out;
8423         }
8424         rc = lpfc_config_msi(phba, pmb);
8425         if (rc)
8426                 goto mbx_fail_out;
8427         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8428         if (rc != MBX_SUCCESS) {
8429                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8430                                 "0351 Config MSI mailbox command failed, "
8431                                 "mbxCmd x%x, mbxStatus x%x\n",
8432                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8433                 goto mbx_fail_out;
8434         }
8435
8436         /* Free memory allocated for mailbox command */
8437         mempool_free(pmb, phba->mbox_mem_pool);
8438         return rc;
8439
8440 mbx_fail_out:
8441         /* Free memory allocated for mailbox command */
8442         mempool_free(pmb, phba->mbox_mem_pool);
8443
8444 mem_fail_out:
8445         /* free the irq already requested */
8446         free_irq(phba->msix_entries[1].vector, phba);
8447
8448 irq_fail_out:
8449         /* free the irq already requested */
8450         free_irq(phba->msix_entries[0].vector, phba);
8451
8452 msi_fail_out:
8453         /* Unconfigure MSI-X capability structure */
8454         pci_disable_msix(phba->pcidev);
8455
8456 vec_fail_out:
8457         return rc;
8458 }
8459
8460 /**
8461  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8462  * @phba: pointer to lpfc hba data structure.
8463  *
8464  * This routine is invoked to release the MSI-X vectors and then disable the
8465  * MSI-X interrupt mode to device with SLI-3 interface spec.
8466  **/
8467 static void
8468 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8469 {
8470         int i;
8471
8472         /* Free up MSI-X multi-message vectors */
8473         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8474                 free_irq(phba->msix_entries[i].vector, phba);
8475         /* Disable MSI-X */
8476         pci_disable_msix(phba->pcidev);
8477
8478         return;
8479 }
8480
8481 /**
8482  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8483  * @phba: pointer to lpfc hba data structure.
8484  *
8485  * This routine is invoked to enable the MSI interrupt mode to device with
8486  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8487  * enable the MSI vector. The device driver is responsible for calling the
8488  * request_irq() to register MSI vector with a interrupt the handler, which
8489  * is done in this function.
8490  *
8491  * Return codes
8492  *      0 - successful
8493  *      other values - error
8494  */
8495 static int
8496 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8497 {
8498         int rc;
8499
8500         rc = pci_enable_msi(phba->pcidev);
8501         if (!rc)
8502                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8503                                 "0462 PCI enable MSI mode success.\n");
8504         else {
8505                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8506                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8507                 return rc;
8508         }
8509
8510         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8511                          0, LPFC_DRIVER_NAME, phba);
8512         if (rc) {
8513                 pci_disable_msi(phba->pcidev);
8514                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8515                                 "0478 MSI request_irq failed (%d)\n", rc);
8516         }
8517         return rc;
8518 }
8519
8520 /**
8521  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8522  * @phba: pointer to lpfc hba data structure.
8523  *
8524  * This routine is invoked to disable the MSI interrupt mode to device with
8525  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8526  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8527  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8528  * its vector.
8529  */
8530 static void
8531 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8532 {
8533         free_irq(phba->pcidev->irq, phba);
8534         pci_disable_msi(phba->pcidev);
8535         return;
8536 }
8537
8538 /**
8539  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8540  * @phba: pointer to lpfc hba data structure.
8541  *
8542  * This routine is invoked to enable device interrupt and associate driver's
8543  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8544  * spec. Depends on the interrupt mode configured to the driver, the driver
8545  * will try to fallback from the configured interrupt mode to an interrupt
8546  * mode which is supported by the platform, kernel, and device in the order
8547  * of:
8548  * MSI-X -> MSI -> IRQ.
8549  *
8550  * Return codes
8551  *   0 - successful
8552  *   other values - error
8553  **/
8554 static uint32_t
8555 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8556 {
8557         uint32_t intr_mode = LPFC_INTR_ERROR;
8558         int retval;
8559
8560         if (cfg_mode == 2) {
8561                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8562                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8563                 if (!retval) {
8564                         /* Now, try to enable MSI-X interrupt mode */
8565                         retval = lpfc_sli_enable_msix(phba);
8566                         if (!retval) {
8567                                 /* Indicate initialization to MSI-X mode */
8568                                 phba->intr_type = MSIX;
8569                                 intr_mode = 2;
8570                         }
8571                 }
8572         }
8573
8574         /* Fallback to MSI if MSI-X initialization failed */
8575         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8576                 retval = lpfc_sli_enable_msi(phba);
8577                 if (!retval) {
8578                         /* Indicate initialization to MSI mode */
8579                         phba->intr_type = MSI;
8580                         intr_mode = 1;
8581                 }
8582         }
8583
8584         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8585         if (phba->intr_type == NONE) {
8586                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8587                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8588                 if (!retval) {
8589                         /* Indicate initialization to INTx mode */
8590                         phba->intr_type = INTx;
8591                         intr_mode = 0;
8592                 }
8593         }
8594         return intr_mode;
8595 }
8596
8597 /**
8598  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8599  * @phba: pointer to lpfc hba data structure.
8600  *
8601  * This routine is invoked to disable device interrupt and disassociate the
8602  * driver's interrupt handler(s) from interrupt vector(s) to device with
8603  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8604  * release the interrupt vector(s) for the message signaled interrupt.
8605  **/
8606 static void
8607 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8608 {
8609         /* Disable the currently initialized interrupt mode */
8610         if (phba->intr_type == MSIX)
8611                 lpfc_sli_disable_msix(phba);
8612         else if (phba->intr_type == MSI)
8613                 lpfc_sli_disable_msi(phba);
8614         else if (phba->intr_type == INTx)
8615                 free_irq(phba->pcidev->irq, phba);
8616
8617         /* Reset interrupt management states */
8618         phba->intr_type = NONE;
8619         phba->sli.slistat.sli_intr = 0;
8620
8621         return;
8622 }
8623
8624 /**
8625  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8626  * @phba: pointer to lpfc hba data structure.
8627  *
8628  * Find next available CPU to use for IRQ to CPU affinity.
8629  */
8630 static int
8631 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8632 {
8633         struct lpfc_vector_map_info *cpup;
8634         int cpu;
8635
8636         cpup = phba->sli4_hba.cpu_map;
8637         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8638                 /* CPU must be online */
8639                 if (cpu_online(cpu)) {
8640                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8641                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8642                             (cpup->phys_id == phys_id)) {
8643                                 return cpu;
8644                         }
8645                 }
8646                 cpup++;
8647         }
8648
8649         /*
8650          * If we get here, we have used ALL CPUs for the specific
8651          * phys_id. Now we need to clear out lpfc_used_cpu and start
8652          * reusing CPUs.
8653          */
8654
8655         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8656                 if (lpfc_used_cpu[cpu] == phys_id)
8657                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8658         }
8659
8660         cpup = phba->sli4_hba.cpu_map;
8661         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8662                 /* CPU must be online */
8663                 if (cpu_online(cpu)) {
8664                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8665                             (cpup->phys_id == phys_id)) {
8666                                 return cpu;
8667                         }
8668                 }
8669                 cpup++;
8670         }
8671         return LPFC_VECTOR_MAP_EMPTY;
8672 }
8673
8674 /**
8675  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8676  * @phba:       pointer to lpfc hba data structure.
8677  * @vectors:    number of HBA vectors
8678  *
8679  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8680  * affinization across multple physical CPUs (numa nodes).
8681  * In addition, this routine will assign an IO channel for each CPU
8682  * to use when issuing I/Os.
8683  */
8684 static int
8685 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8686 {
8687         int i, idx, saved_chann, used_chann, cpu, phys_id;
8688         int max_phys_id, min_phys_id;
8689         int num_io_channel, first_cpu, chan;
8690         struct lpfc_vector_map_info *cpup;
8691 #ifdef CONFIG_X86
8692         struct cpuinfo_x86 *cpuinfo;
8693 #endif
8694         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8695
8696         /* If there is no mapping, just return */
8697         if (!phba->cfg_fcp_cpu_map)
8698                 return 1;
8699
8700         /* Init cpu_map array */
8701         memset(phba->sli4_hba.cpu_map, 0xff,
8702                (sizeof(struct lpfc_vector_map_info) *
8703                 phba->sli4_hba.num_present_cpu));
8704
8705         max_phys_id = 0;
8706         min_phys_id = 0xff;
8707         phys_id = 0;
8708         num_io_channel = 0;
8709         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8710
8711         /* Update CPU map with physical id and core id of each CPU */
8712         cpup = phba->sli4_hba.cpu_map;
8713         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8714 #ifdef CONFIG_X86
8715                 cpuinfo = &cpu_data(cpu);
8716                 cpup->phys_id = cpuinfo->phys_proc_id;
8717                 cpup->core_id = cpuinfo->cpu_core_id;
8718 #else
8719                 /* No distinction between CPUs for other platforms */
8720                 cpup->phys_id = 0;
8721                 cpup->core_id = 0;
8722 #endif
8723
8724                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8725                                 "3328 CPU physid %d coreid %d\n",
8726                                 cpup->phys_id, cpup->core_id);
8727
8728                 if (cpup->phys_id > max_phys_id)
8729                         max_phys_id = cpup->phys_id;
8730                 if (cpup->phys_id < min_phys_id)
8731                         min_phys_id = cpup->phys_id;
8732                 cpup++;
8733         }
8734
8735         phys_id = min_phys_id;
8736         /* Now associate the HBA vectors with specific CPUs */
8737         for (idx = 0; idx < vectors; idx++) {
8738                 cpup = phba->sli4_hba.cpu_map;
8739                 cpu = lpfc_find_next_cpu(phba, phys_id);
8740                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8741
8742                         /* Try for all phys_id's */
8743                         for (i = 1; i < max_phys_id; i++) {
8744                                 phys_id++;
8745                                 if (phys_id > max_phys_id)
8746                                         phys_id = min_phys_id;
8747                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8748                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8749                                         continue;
8750                                 goto found;
8751                         }
8752
8753                         /* Use round robin for scheduling */
8754                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8755                         chan = 0;
8756                         cpup = phba->sli4_hba.cpu_map;
8757                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8758                                 cpup->channel_id = chan;
8759                                 cpup++;
8760                                 chan++;
8761                                 if (chan >= phba->cfg_fcp_io_channel)
8762                                         chan = 0;
8763                         }
8764
8765                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8766                                         "3329 Cannot set affinity:"
8767                                         "Error mapping vector %d (%d)\n",
8768                                         idx, vectors);
8769                         return 0;
8770                 }
8771 found:
8772                 cpup += cpu;
8773                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8774                         lpfc_used_cpu[cpu] = phys_id;
8775
8776                 /* Associate vector with selected CPU */
8777                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8778
8779                 /* Associate IO channel with selected CPU */
8780                 cpup->channel_id = idx;
8781                 num_io_channel++;
8782
8783                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8784                         first_cpu = cpu;
8785
8786                 /* Now affinitize to the selected CPU */
8787                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8788                                           vector, get_cpu_mask(cpu));
8789
8790                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8791                                 "3330 Set Affinity: CPU %d channel %d "
8792                                 "irq %d (%x)\n",
8793                                 cpu, cpup->channel_id,
8794                                 phba->sli4_hba.msix_entries[idx].vector, i);
8795
8796                 /* Spread vector mapping across multple physical CPU nodes */
8797                 phys_id++;
8798                 if (phys_id > max_phys_id)
8799                         phys_id = min_phys_id;
8800         }
8801
8802         /*
8803          * Finally fill in the IO channel for any remaining CPUs.
8804          * At this point, all IO channels have been assigned to a specific
8805          * MSIx vector, mapped to a specific CPU.
8806          * Base the remaining IO channel assigned, to IO channels already
8807          * assigned to other CPUs on the same phys_id.
8808          */
8809         for (i = min_phys_id; i <= max_phys_id; i++) {
8810                 /*
8811                  * If there are no io channels already mapped to
8812                  * this phys_id, just round robin thru the io_channels.
8813                  * Setup chann[] for round robin.
8814                  */
8815                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8816                         chann[idx] = idx;
8817
8818                 saved_chann = 0;
8819                 used_chann = 0;
8820
8821                 /*
8822                  * First build a list of IO channels already assigned
8823                  * to this phys_id before reassigning the same IO
8824                  * channels to the remaining CPUs.
8825                  */
8826                 cpup = phba->sli4_hba.cpu_map;
8827                 cpu = first_cpu;
8828                 cpup += cpu;
8829                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8830                      idx++) {
8831                         if (cpup->phys_id == i) {
8832                                 /*
8833                                  * Save any IO channels that are
8834                                  * already mapped to this phys_id.
8835                                  */
8836                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8837                                         if (saved_chann <=
8838                                             LPFC_FCP_IO_CHAN_MAX) {
8839                                                 chann[saved_chann] =
8840                                                         cpup->channel_id;
8841                                                 saved_chann++;
8842                                         }
8843                                         goto out;
8844                                 }
8845
8846                                 /* See if we are using round-robin */
8847                                 if (saved_chann == 0)
8848                                         saved_chann =
8849                                                 phba->cfg_fcp_io_channel;
8850
8851                                 /* Associate next IO channel with CPU */
8852                                 cpup->channel_id = chann[used_chann];
8853                                 num_io_channel++;
8854                                 used_chann++;
8855                                 if (used_chann == saved_chann)
8856                                         used_chann = 0;
8857
8858                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8859                                                 "3331 Set IO_CHANN "
8860                                                 "CPU %d channel %d\n",
8861                                                 idx, cpup->channel_id);
8862                         }
8863 out:
8864                         cpu++;
8865                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8866                                 cpup = phba->sli4_hba.cpu_map;
8867                                 cpu = 0;
8868                         } else {
8869                                 cpup++;
8870                         }
8871                 }
8872         }
8873
8874         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8875                 cpup = phba->sli4_hba.cpu_map;
8876                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8877                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8878                                 cpup->channel_id = 0;
8879                                 num_io_channel++;
8880
8881                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8882                                                 "3332 Assign IO_CHANN "
8883                                                 "CPU %d channel %d\n",
8884                                                 idx, cpup->channel_id);
8885                         }
8886                         cpup++;
8887                 }
8888         }
8889
8890         /* Sanity check */
8891         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8893                                 "3333 Set affinity mismatch:"
8894                                 "%d chann != %d cpus: %d vectors\n",
8895                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8896                                 vectors);
8897
8898         /* Enable using cpu affinity for scheduling */
8899         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8900         return 1;
8901 }
8902
8903
8904 /**
8905  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8906  * @phba: pointer to lpfc hba data structure.
8907  *
8908  * This routine is invoked to enable the MSI-X interrupt vectors to device
8909  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8910  * is called to enable the MSI-X vectors. The device driver is responsible
8911  * for calling the individual request_irq() to register each MSI-X vector
8912  * with a interrupt handler, which is done in this function. Note that
8913  * later when device is unloading, the driver should always call free_irq()
8914  * on all MSI-X vectors it has done request_irq() on before calling
8915  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8916  * will be left with MSI-X enabled and leaks its vectors.
8917  *
8918  * Return codes
8919  * 0 - successful
8920  * other values - error
8921  **/
8922 static int
8923 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8924 {
8925         int vectors, rc, index;
8926
8927         /* Set up MSI-X multi-message vectors */
8928         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8929                 phba->sli4_hba.msix_entries[index].entry = index;
8930
8931         /* Configure MSI-X capability structure */
8932         vectors = phba->cfg_fcp_io_channel;
8933         if (phba->cfg_fof) {
8934                 phba->sli4_hba.msix_entries[index].entry = index;
8935                 vectors++;
8936         }
8937         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8938                                    2, vectors);
8939         if (rc < 0) {
8940                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8941                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8942                 goto vec_fail_out;
8943         }
8944         vectors = rc;
8945
8946         /* Log MSI-X vector assignment */
8947         for (index = 0; index < vectors; index++)
8948                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8949                                 "0489 MSI-X entry[%d]: vector=x%x "
8950                                 "message=%d\n", index,
8951                                 phba->sli4_hba.msix_entries[index].vector,
8952                                 phba->sli4_hba.msix_entries[index].entry);
8953
8954         /* Assign MSI-X vectors to interrupt handlers */
8955         for (index = 0; index < vectors; index++) {
8956                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8957                 snprintf((char *)&phba->sli4_hba.handler_name[index],
8958                          LPFC_SLI4_HANDLER_NAME_SZ,
8959                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8960
8961                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8962                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8963                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8964                 if (phba->cfg_fof && (index == (vectors - 1)))
8965                         rc = request_irq(
8966                                 phba->sli4_hba.msix_entries[index].vector,
8967                                  &lpfc_sli4_fof_intr_handler, 0,
8968                                  (char *)&phba->sli4_hba.handler_name[index],
8969                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8970                 else
8971                         rc = request_irq(
8972                                 phba->sli4_hba.msix_entries[index].vector,
8973                                  &lpfc_sli4_hba_intr_handler, 0,
8974                                  (char *)&phba->sli4_hba.handler_name[index],
8975                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8976                 if (rc) {
8977                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8978                                         "0486 MSI-X fast-path (%d) "
8979                                         "request_irq failed (%d)\n", index, rc);
8980                         goto cfg_fail_out;
8981                 }
8982         }
8983
8984         if (phba->cfg_fof)
8985                 vectors--;
8986
8987         if (vectors != phba->cfg_fcp_io_channel) {
8988                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8989                                 "3238 Reducing IO channels to match number of "
8990                                 "MSI-X vectors, requested %d got %d\n",
8991                                 phba->cfg_fcp_io_channel, vectors);
8992                 phba->cfg_fcp_io_channel = vectors;
8993         }
8994
8995         if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
8996                 lpfc_sli4_set_affinity(phba, vectors);
8997         return rc;
8998
8999 cfg_fail_out:
9000         /* free the irq already requested */
9001         for (--index; index >= 0; index--) {
9002                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9003                                           vector, NULL);
9004                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9005                          &phba->sli4_hba.fcp_eq_hdl[index]);
9006         }
9007
9008         /* Unconfigure MSI-X capability structure */
9009         pci_disable_msix(phba->pcidev);
9010
9011 vec_fail_out:
9012         return rc;
9013 }
9014
9015 /**
9016  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9017  * @phba: pointer to lpfc hba data structure.
9018  *
9019  * This routine is invoked to release the MSI-X vectors and then disable the
9020  * MSI-X interrupt mode to device with SLI-4 interface spec.
9021  **/
9022 static void
9023 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9024 {
9025         int index;
9026
9027         /* Free up MSI-X multi-message vectors */
9028         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9029                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9030                                           vector, NULL);
9031                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9032                          &phba->sli4_hba.fcp_eq_hdl[index]);
9033         }
9034         if (phba->cfg_fof) {
9035                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9036                          &phba->sli4_hba.fcp_eq_hdl[index]);
9037         }
9038         /* Disable MSI-X */
9039         pci_disable_msix(phba->pcidev);
9040
9041         return;
9042 }
9043
9044 /**
9045  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9046  * @phba: pointer to lpfc hba data structure.
9047  *
9048  * This routine is invoked to enable the MSI interrupt mode to device with
9049  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9050  * to enable the MSI vector. The device driver is responsible for calling
9051  * the request_irq() to register MSI vector with a interrupt the handler,
9052  * which is done in this function.
9053  *
9054  * Return codes
9055  *      0 - successful
9056  *      other values - error
9057  **/
9058 static int
9059 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9060 {
9061         int rc, index;
9062
9063         rc = pci_enable_msi(phba->pcidev);
9064         if (!rc)
9065                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9066                                 "0487 PCI enable MSI mode success.\n");
9067         else {
9068                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9069                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9070                 return rc;
9071         }
9072
9073         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9074                          0, LPFC_DRIVER_NAME, phba);
9075         if (rc) {
9076                 pci_disable_msi(phba->pcidev);
9077                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9078                                 "0490 MSI request_irq failed (%d)\n", rc);
9079                 return rc;
9080         }
9081
9082         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9083                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9084                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9085         }
9086
9087         if (phba->cfg_fof) {
9088                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9089                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9090         }
9091         return 0;
9092 }
9093
9094 /**
9095  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9096  * @phba: pointer to lpfc hba data structure.
9097  *
9098  * This routine is invoked to disable the MSI interrupt mode to device with
9099  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9100  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9101  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9102  * its vector.
9103  **/
9104 static void
9105 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9106 {
9107         free_irq(phba->pcidev->irq, phba);
9108         pci_disable_msi(phba->pcidev);
9109         return;
9110 }
9111
9112 /**
9113  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9114  * @phba: pointer to lpfc hba data structure.
9115  *
9116  * This routine is invoked to enable device interrupt and associate driver's
9117  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9118  * interface spec. Depends on the interrupt mode configured to the driver,
9119  * the driver will try to fallback from the configured interrupt mode to an
9120  * interrupt mode which is supported by the platform, kernel, and device in
9121  * the order of:
9122  * MSI-X -> MSI -> IRQ.
9123  *
9124  * Return codes
9125  *      0 - successful
9126  *      other values - error
9127  **/
9128 static uint32_t
9129 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9130 {
9131         uint32_t intr_mode = LPFC_INTR_ERROR;
9132         int retval, index;
9133
9134         if (cfg_mode == 2) {
9135                 /* Preparation before conf_msi mbox cmd */
9136                 retval = 0;
9137                 if (!retval) {
9138                         /* Now, try to enable MSI-X interrupt mode */
9139                         retval = lpfc_sli4_enable_msix(phba);
9140                         if (!retval) {
9141                                 /* Indicate initialization to MSI-X mode */
9142                                 phba->intr_type = MSIX;
9143                                 intr_mode = 2;
9144                         }
9145                 }
9146         }
9147
9148         /* Fallback to MSI if MSI-X initialization failed */
9149         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9150                 retval = lpfc_sli4_enable_msi(phba);
9151                 if (!retval) {
9152                         /* Indicate initialization to MSI mode */
9153                         phba->intr_type = MSI;
9154                         intr_mode = 1;
9155                 }
9156         }
9157
9158         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9159         if (phba->intr_type == NONE) {
9160                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9161                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9162                 if (!retval) {
9163                         /* Indicate initialization to INTx mode */
9164                         phba->intr_type = INTx;
9165                         intr_mode = 0;
9166                         for (index = 0; index < phba->cfg_fcp_io_channel;
9167                              index++) {
9168                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9169                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9170                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9171                                         fcp_eq_in_use, 1);
9172                         }
9173                         if (phba->cfg_fof) {
9174                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9175                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9176                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9177                                         fcp_eq_in_use, 1);
9178                         }
9179                 }
9180         }
9181         return intr_mode;
9182 }
9183
9184 /**
9185  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9186  * @phba: pointer to lpfc hba data structure.
9187  *
9188  * This routine is invoked to disable device interrupt and disassociate
9189  * the driver's interrupt handler(s) from interrupt vector(s) to device
9190  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9191  * will release the interrupt vector(s) for the message signaled interrupt.
9192  **/
9193 static void
9194 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9195 {
9196         /* Disable the currently initialized interrupt mode */
9197         if (phba->intr_type == MSIX)
9198                 lpfc_sli4_disable_msix(phba);
9199         else if (phba->intr_type == MSI)
9200                 lpfc_sli4_disable_msi(phba);
9201         else if (phba->intr_type == INTx)
9202                 free_irq(phba->pcidev->irq, phba);
9203
9204         /* Reset interrupt management states */
9205         phba->intr_type = NONE;
9206         phba->sli.slistat.sli_intr = 0;
9207
9208         return;
9209 }
9210
9211 /**
9212  * lpfc_unset_hba - Unset SLI3 hba device initialization
9213  * @phba: pointer to lpfc hba data structure.
9214  *
9215  * This routine is invoked to unset the HBA device initialization steps to
9216  * a device with SLI-3 interface spec.
9217  **/
9218 static void
9219 lpfc_unset_hba(struct lpfc_hba *phba)
9220 {
9221         struct lpfc_vport *vport = phba->pport;
9222         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9223
9224         spin_lock_irq(shost->host_lock);
9225         vport->load_flag |= FC_UNLOADING;
9226         spin_unlock_irq(shost->host_lock);
9227
9228         kfree(phba->vpi_bmask);
9229         kfree(phba->vpi_ids);
9230
9231         lpfc_stop_hba_timers(phba);
9232
9233         phba->pport->work_port_events = 0;
9234
9235         lpfc_sli_hba_down(phba);
9236
9237         lpfc_sli_brdrestart(phba);
9238
9239         lpfc_sli_disable_intr(phba);
9240
9241         return;
9242 }
9243
9244 /**
9245  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9246  * @phba: Pointer to HBA context object.
9247  *
9248  * This function is called in the SLI4 code path to wait for completion
9249  * of device's XRIs exchange busy. It will check the XRI exchange busy
9250  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9251  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9252  * I/Os every 30 seconds, log error message, and wait forever. Only when
9253  * all XRI exchange busy complete, the driver unload shall proceed with
9254  * invoking the function reset ioctl mailbox command to the CNA and the
9255  * the rest of the driver unload resource release.
9256  **/
9257 static void
9258 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9259 {
9260         int wait_time = 0;
9261         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9262         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9263
9264         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9265                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9266                         if (!fcp_xri_cmpl)
9267                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9268                                                 "2877 FCP XRI exchange busy "
9269                                                 "wait time: %d seconds.\n",
9270                                                 wait_time/1000);
9271                         if (!els_xri_cmpl)
9272                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9273                                                 "2878 ELS XRI exchange busy "
9274                                                 "wait time: %d seconds.\n",
9275                                                 wait_time/1000);
9276                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9277                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9278                 } else {
9279                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9280                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9281                 }
9282                 fcp_xri_cmpl =
9283                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9284                 els_xri_cmpl =
9285                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9286         }
9287 }
9288
9289 /**
9290  * lpfc_sli4_hba_unset - Unset the fcoe hba
9291  * @phba: Pointer to HBA context object.
9292  *
9293  * This function is called in the SLI4 code path to reset the HBA's FCoE
9294  * function. The caller is not required to hold any lock. This routine
9295  * issues PCI function reset mailbox command to reset the FCoE function.
9296  * At the end of the function, it calls lpfc_hba_down_post function to
9297  * free any pending commands.
9298  **/
9299 static void
9300 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9301 {
9302         int wait_cnt = 0;
9303         LPFC_MBOXQ_t *mboxq;
9304         struct pci_dev *pdev = phba->pcidev;
9305
9306         lpfc_stop_hba_timers(phba);
9307         phba->sli4_hba.intr_enable = 0;
9308
9309         /*
9310          * Gracefully wait out the potential current outstanding asynchronous
9311          * mailbox command.
9312          */
9313
9314         /* First, block any pending async mailbox command from posted */
9315         spin_lock_irq(&phba->hbalock);
9316         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9317         spin_unlock_irq(&phba->hbalock);
9318         /* Now, trying to wait it out if we can */
9319         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9320                 msleep(10);
9321                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9322                         break;
9323         }
9324         /* Forcefully release the outstanding mailbox command if timed out */
9325         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9326                 spin_lock_irq(&phba->hbalock);
9327                 mboxq = phba->sli.mbox_active;
9328                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9329                 __lpfc_mbox_cmpl_put(phba, mboxq);
9330                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9331                 phba->sli.mbox_active = NULL;
9332                 spin_unlock_irq(&phba->hbalock);
9333         }
9334
9335         /* Abort all iocbs associated with the hba */
9336         lpfc_sli_hba_iocb_abort(phba);
9337
9338         /* Wait for completion of device XRI exchange busy */
9339         lpfc_sli4_xri_exchange_busy_wait(phba);
9340
9341         /* Disable PCI subsystem interrupt */
9342         lpfc_sli4_disable_intr(phba);
9343
9344         /* Disable SR-IOV if enabled */
9345         if (phba->cfg_sriov_nr_virtfn)
9346                 pci_disable_sriov(pdev);
9347
9348         /* Stop kthread signal shall trigger work_done one more time */
9349         kthread_stop(phba->worker_thread);
9350
9351         /* Reset SLI4 HBA FCoE function */
9352         lpfc_pci_function_reset(phba);
9353         lpfc_sli4_queue_destroy(phba);
9354
9355         /* Stop the SLI4 device port */
9356         phba->pport->work_port_events = 0;
9357 }
9358
9359  /**
9360  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9361  * @phba: Pointer to HBA context object.
9362  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9363  *
9364  * This function is called in the SLI4 code path to read the port's
9365  * sli4 capabilities.
9366  *
9367  * This function may be be called from any context that can block-wait
9368  * for the completion.  The expectation is that this routine is called
9369  * typically from probe_one or from the online routine.
9370  **/
9371 int
9372 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9373 {
9374         int rc;
9375         struct lpfc_mqe *mqe;
9376         struct lpfc_pc_sli4_params *sli4_params;
9377         uint32_t mbox_tmo;
9378
9379         rc = 0;
9380         mqe = &mboxq->u.mqe;
9381
9382         /* Read the port's SLI4 Parameters port capabilities */
9383         lpfc_pc_sli4_params(mboxq);
9384         if (!phba->sli4_hba.intr_enable)
9385                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9386         else {
9387                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9388                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9389         }
9390
9391         if (unlikely(rc))
9392                 return 1;
9393
9394         sli4_params = &phba->sli4_hba.pc_sli4_params;
9395         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9396         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9397         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9398         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9399                                              &mqe->un.sli4_params);
9400         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9401                                              &mqe->un.sli4_params);
9402         sli4_params->proto_types = mqe->un.sli4_params.word3;
9403         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9404         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9405         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9406         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9407         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9408         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9409         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9410         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9411         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9412         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9413         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9414         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9415         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9416         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9417         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9418         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9419         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9420         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9421         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9422         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9423
9424         /* Make sure that sge_supp_len can be handled by the driver */
9425         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9426                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9427
9428         return rc;
9429 }
9430
9431 /**
9432  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9433  * @phba: Pointer to HBA context object.
9434  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9435  *
9436  * This function is called in the SLI4 code path to read the port's
9437  * sli4 capabilities.
9438  *
9439  * This function may be be called from any context that can block-wait
9440  * for the completion.  The expectation is that this routine is called
9441  * typically from probe_one or from the online routine.
9442  **/
9443 int
9444 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9445 {
9446         int rc;
9447         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9448         struct lpfc_pc_sli4_params *sli4_params;
9449         uint32_t mbox_tmo;
9450         int length;
9451         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9452
9453         /*
9454          * By default, the driver assumes the SLI4 port requires RPI
9455          * header postings.  The SLI4_PARAM response will correct this
9456          * assumption.
9457          */
9458         phba->sli4_hba.rpi_hdrs_in_use = 1;
9459
9460         /* Read the port's SLI4 Config Parameters */
9461         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9462                   sizeof(struct lpfc_sli4_cfg_mhdr));
9463         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9464                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9465                          length, LPFC_SLI4_MBX_EMBED);
9466         if (!phba->sli4_hba.intr_enable)
9467                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9468         else {
9469                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9470                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9471         }
9472         if (unlikely(rc))
9473                 return rc;
9474         sli4_params = &phba->sli4_hba.pc_sli4_params;
9475         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9476         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9477         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9478         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9479         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9480                                              mbx_sli4_parameters);
9481         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9482                                              mbx_sli4_parameters);
9483         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9484                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9485         else
9486                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9487         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9488         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9489         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9490         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9491         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9492         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9493         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9494         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9495         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9496                                             mbx_sli4_parameters);
9497         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9498                                            mbx_sli4_parameters);
9499         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9500         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9501
9502         /* Make sure that sge_supp_len can be handled by the driver */
9503         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9504                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9505
9506         return 0;
9507 }
9508
9509 /**
9510  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9511  * @pdev: pointer to PCI device
9512  * @pid: pointer to PCI device identifier
9513  *
9514  * This routine is to be called to attach a device with SLI-3 interface spec
9515  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9516  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9517  * information of the device and driver to see if the driver state that it can
9518  * support this kind of device. If the match is successful, the driver core
9519  * invokes this routine. If this routine determines it can claim the HBA, it
9520  * does all the initialization that it needs to do to handle the HBA properly.
9521  *
9522  * Return code
9523  *      0 - driver can claim the device
9524  *      negative value - driver can not claim the device
9525  **/
9526 static int
9527 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9528 {
9529         struct lpfc_hba   *phba;
9530         struct lpfc_vport *vport = NULL;
9531         struct Scsi_Host  *shost = NULL;
9532         int error;
9533         uint32_t cfg_mode, intr_mode;
9534
9535         /* Allocate memory for HBA structure */
9536         phba = lpfc_hba_alloc(pdev);
9537         if (!phba)
9538                 return -ENOMEM;
9539
9540         /* Perform generic PCI device enabling operation */
9541         error = lpfc_enable_pci_dev(phba);
9542         if (error)
9543                 goto out_free_phba;
9544
9545         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9546         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9547         if (error)
9548                 goto out_disable_pci_dev;
9549
9550         /* Set up SLI-3 specific device PCI memory space */
9551         error = lpfc_sli_pci_mem_setup(phba);
9552         if (error) {
9553                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9554                                 "1402 Failed to set up pci memory space.\n");
9555                 goto out_disable_pci_dev;
9556         }
9557
9558         /* Set up phase-1 common device driver resources */
9559         error = lpfc_setup_driver_resource_phase1(phba);
9560         if (error) {
9561                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9562                                 "1403 Failed to set up driver resource.\n");
9563                 goto out_unset_pci_mem_s3;
9564         }
9565
9566         /* Set up SLI-3 specific device driver resources */
9567         error = lpfc_sli_driver_resource_setup(phba);
9568         if (error) {
9569                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9570                                 "1404 Failed to set up driver resource.\n");
9571                 goto out_unset_pci_mem_s3;
9572         }
9573
9574         /* Initialize and populate the iocb list per host */
9575         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9576         if (error) {
9577                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9578                                 "1405 Failed to initialize iocb list.\n");
9579                 goto out_unset_driver_resource_s3;
9580         }
9581
9582         /* Set up common device driver resources */
9583         error = lpfc_setup_driver_resource_phase2(phba);
9584         if (error) {
9585                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9586                                 "1406 Failed to set up driver resource.\n");
9587                 goto out_free_iocb_list;
9588         }
9589
9590         /* Get the default values for Model Name and Description */
9591         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9592
9593         /* Create SCSI host to the physical port */
9594         error = lpfc_create_shost(phba);
9595         if (error) {
9596                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9597                                 "1407 Failed to create scsi host.\n");
9598                 goto out_unset_driver_resource;
9599         }
9600
9601         /* Configure sysfs attributes */
9602         vport = phba->pport;
9603         error = lpfc_alloc_sysfs_attr(vport);
9604         if (error) {
9605                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9606                                 "1476 Failed to allocate sysfs attr\n");
9607                 goto out_destroy_shost;
9608         }
9609
9610         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9611         /* Now, trying to enable interrupt and bring up the device */
9612         cfg_mode = phba->cfg_use_msi;
9613         while (true) {
9614                 /* Put device to a known state before enabling interrupt */
9615                 lpfc_stop_port(phba);
9616                 /* Configure and enable interrupt */
9617                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9618                 if (intr_mode == LPFC_INTR_ERROR) {
9619                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9620                                         "0431 Failed to enable interrupt.\n");
9621                         error = -ENODEV;
9622                         goto out_free_sysfs_attr;
9623                 }
9624                 /* SLI-3 HBA setup */
9625                 if (lpfc_sli_hba_setup(phba)) {
9626                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9627                                         "1477 Failed to set up hba\n");
9628                         error = -ENODEV;
9629                         goto out_remove_device;
9630                 }
9631
9632                 /* Wait 50ms for the interrupts of previous mailbox commands */
9633                 msleep(50);
9634                 /* Check active interrupts on message signaled interrupts */
9635                 if (intr_mode == 0 ||
9636                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9637                         /* Log the current active interrupt mode */
9638                         phba->intr_mode = intr_mode;
9639                         lpfc_log_intr_mode(phba, intr_mode);
9640                         break;
9641                 } else {
9642                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9643                                         "0447 Configure interrupt mode (%d) "
9644                                         "failed active interrupt test.\n",
9645                                         intr_mode);
9646                         /* Disable the current interrupt mode */
9647                         lpfc_sli_disable_intr(phba);
9648                         /* Try next level of interrupt mode */
9649                         cfg_mode = --intr_mode;
9650                 }
9651         }
9652
9653         /* Perform post initialization setup */
9654         lpfc_post_init_setup(phba);
9655
9656         /* Check if there are static vports to be created. */
9657         lpfc_create_static_vport(phba);
9658
9659         return 0;
9660
9661 out_remove_device:
9662         lpfc_unset_hba(phba);
9663 out_free_sysfs_attr:
9664         lpfc_free_sysfs_attr(vport);
9665 out_destroy_shost:
9666         lpfc_destroy_shost(phba);
9667 out_unset_driver_resource:
9668         lpfc_unset_driver_resource_phase2(phba);
9669 out_free_iocb_list:
9670         lpfc_free_iocb_list(phba);
9671 out_unset_driver_resource_s3:
9672         lpfc_sli_driver_resource_unset(phba);
9673 out_unset_pci_mem_s3:
9674         lpfc_sli_pci_mem_unset(phba);
9675 out_disable_pci_dev:
9676         lpfc_disable_pci_dev(phba);
9677         if (shost)
9678                 scsi_host_put(shost);
9679 out_free_phba:
9680         lpfc_hba_free(phba);
9681         return error;
9682 }
9683
9684 /**
9685  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9686  * @pdev: pointer to PCI device
9687  *
9688  * This routine is to be called to disattach a device with SLI-3 interface
9689  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9690  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9691  * device to be removed from the PCI subsystem properly.
9692  **/
9693 static void
9694 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9695 {
9696         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9697         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9698         struct lpfc_vport **vports;
9699         struct lpfc_hba   *phba = vport->phba;
9700         int i;
9701         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9702
9703         spin_lock_irq(&phba->hbalock);
9704         vport->load_flag |= FC_UNLOADING;
9705         spin_unlock_irq(&phba->hbalock);
9706
9707         lpfc_free_sysfs_attr(vport);
9708
9709         /* Release all the vports against this physical port */
9710         vports = lpfc_create_vport_work_array(phba);
9711         if (vports != NULL)
9712                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9713                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9714                                 continue;
9715                         fc_vport_terminate(vports[i]->fc_vport);
9716                 }
9717         lpfc_destroy_vport_work_array(phba, vports);
9718
9719         /* Remove FC host and then SCSI host with the physical port */
9720         fc_remove_host(shost);
9721         scsi_remove_host(shost);
9722         lpfc_cleanup(vport);
9723
9724         /*
9725          * Bring down the SLI Layer. This step disable all interrupts,
9726          * clears the rings, discards all mailbox commands, and resets
9727          * the HBA.
9728          */
9729
9730         /* HBA interrupt will be disabled after this call */
9731         lpfc_sli_hba_down(phba);
9732         /* Stop kthread signal shall trigger work_done one more time */
9733         kthread_stop(phba->worker_thread);
9734         /* Final cleanup of txcmplq and reset the HBA */
9735         lpfc_sli_brdrestart(phba);
9736
9737         kfree(phba->vpi_bmask);
9738         kfree(phba->vpi_ids);
9739
9740         lpfc_stop_hba_timers(phba);
9741         spin_lock_irq(&phba->hbalock);
9742         list_del_init(&vport->listentry);
9743         spin_unlock_irq(&phba->hbalock);
9744
9745         lpfc_debugfs_terminate(vport);
9746
9747         /* Disable SR-IOV if enabled */
9748         if (phba->cfg_sriov_nr_virtfn)
9749                 pci_disable_sriov(pdev);
9750
9751         /* Disable interrupt */
9752         lpfc_sli_disable_intr(phba);
9753
9754         scsi_host_put(shost);
9755
9756         /*
9757          * Call scsi_free before mem_free since scsi bufs are released to their
9758          * corresponding pools here.
9759          */
9760         lpfc_scsi_free(phba);
9761         lpfc_mem_free_all(phba);
9762
9763         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9764                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9765
9766         /* Free resources associated with SLI2 interface */
9767         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9768                           phba->slim2p.virt, phba->slim2p.phys);
9769
9770         /* unmap adapter SLIM and Control Registers */
9771         iounmap(phba->ctrl_regs_memmap_p);
9772         iounmap(phba->slim_memmap_p);
9773
9774         lpfc_hba_free(phba);
9775
9776         pci_release_selected_regions(pdev, bars);
9777         pci_disable_device(pdev);
9778 }
9779
9780 /**
9781  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9782  * @pdev: pointer to PCI device
9783  * @msg: power management message
9784  *
9785  * This routine is to be called from the kernel's PCI subsystem to support
9786  * system Power Management (PM) to device with SLI-3 interface spec. When
9787  * PM invokes this method, it quiesces the device by stopping the driver's
9788  * worker thread for the device, turning off device's interrupt and DMA,
9789  * and bring the device offline. Note that as the driver implements the
9790  * minimum PM requirements to a power-aware driver's PM support for the
9791  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9792  * to the suspend() method call will be treated as SUSPEND and the driver will
9793  * fully reinitialize its device during resume() method call, the driver will
9794  * set device to PCI_D3hot state in PCI config space instead of setting it
9795  * according to the @msg provided by the PM.
9796  *
9797  * Return code
9798  *      0 - driver suspended the device
9799  *      Error otherwise
9800  **/
9801 static int
9802 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9803 {
9804         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9805         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9806
9807         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9808                         "0473 PCI device Power Management suspend.\n");
9809
9810         /* Bring down the device */
9811         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9812         lpfc_offline(phba);
9813         kthread_stop(phba->worker_thread);
9814
9815         /* Disable interrupt from device */
9816         lpfc_sli_disable_intr(phba);
9817
9818         /* Save device state to PCI config space */
9819         pci_save_state(pdev);
9820         pci_set_power_state(pdev, PCI_D3hot);
9821
9822         return 0;
9823 }
9824
9825 /**
9826  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9827  * @pdev: pointer to PCI device
9828  *
9829  * This routine is to be called from the kernel's PCI subsystem to support
9830  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9831  * invokes this method, it restores the device's PCI config space state and
9832  * fully reinitializes the device and brings it online. Note that as the
9833  * driver implements the minimum PM requirements to a power-aware driver's
9834  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9835  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9836  * driver will fully reinitialize its device during resume() method call,
9837  * the device will be set to PCI_D0 directly in PCI config space before
9838  * restoring the state.
9839  *
9840  * Return code
9841  *      0 - driver suspended the device
9842  *      Error otherwise
9843  **/
9844 static int
9845 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9846 {
9847         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9848         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9849         uint32_t intr_mode;
9850         int error;
9851
9852         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9853                         "0452 PCI device Power Management resume.\n");
9854
9855         /* Restore device state from PCI config space */
9856         pci_set_power_state(pdev, PCI_D0);
9857         pci_restore_state(pdev);
9858
9859         /*
9860          * As the new kernel behavior of pci_restore_state() API call clears
9861          * device saved_state flag, need to save the restored state again.
9862          */
9863         pci_save_state(pdev);
9864
9865         if (pdev->is_busmaster)
9866                 pci_set_master(pdev);
9867
9868         /* Startup the kernel thread for this host adapter. */
9869         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9870                                         "lpfc_worker_%d", phba->brd_no);
9871         if (IS_ERR(phba->worker_thread)) {
9872                 error = PTR_ERR(phba->worker_thread);
9873                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9874                                 "0434 PM resume failed to start worker "
9875                                 "thread: error=x%x.\n", error);
9876                 return error;
9877         }
9878
9879         /* Configure and enable interrupt */
9880         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9881         if (intr_mode == LPFC_INTR_ERROR) {
9882                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9883                                 "0430 PM resume Failed to enable interrupt\n");
9884                 return -EIO;
9885         } else
9886                 phba->intr_mode = intr_mode;
9887
9888         /* Restart HBA and bring it online */
9889         lpfc_sli_brdrestart(phba);
9890         lpfc_online(phba);
9891
9892         /* Log the current active interrupt mode */
9893         lpfc_log_intr_mode(phba, phba->intr_mode);
9894
9895         return 0;
9896 }
9897
9898 /**
9899  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9900  * @phba: pointer to lpfc hba data structure.
9901  *
9902  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9903  * aborts all the outstanding SCSI I/Os to the pci device.
9904  **/
9905 static void
9906 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9907 {
9908         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9909                         "2723 PCI channel I/O abort preparing for recovery\n");
9910
9911         /*
9912          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9913          * and let the SCSI mid-layer to retry them to recover.
9914          */
9915         lpfc_sli_abort_fcp_rings(phba);
9916 }
9917
9918 /**
9919  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9920  * @phba: pointer to lpfc hba data structure.
9921  *
9922  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9923  * disables the device interrupt and pci device, and aborts the internal FCP
9924  * pending I/Os.
9925  **/
9926 static void
9927 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9928 {
9929         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9930                         "2710 PCI channel disable preparing for reset\n");
9931
9932         /* Block any management I/Os to the device */
9933         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9934
9935         /* Block all SCSI devices' I/Os on the host */
9936         lpfc_scsi_dev_block(phba);
9937
9938         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9939         lpfc_sli_flush_fcp_rings(phba);
9940
9941         /* stop all timers */
9942         lpfc_stop_hba_timers(phba);
9943
9944         /* Disable interrupt and pci device */
9945         lpfc_sli_disable_intr(phba);
9946         pci_disable_device(phba->pcidev);
9947 }
9948
9949 /**
9950  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9951  * @phba: pointer to lpfc hba data structure.
9952  *
9953  * This routine is called to prepare the SLI3 device for PCI slot permanently
9954  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9955  * pending I/Os.
9956  **/
9957 static void
9958 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9959 {
9960         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9961                         "2711 PCI channel permanent disable for failure\n");
9962         /* Block all SCSI devices' I/Os on the host */
9963         lpfc_scsi_dev_block(phba);
9964
9965         /* stop all timers */
9966         lpfc_stop_hba_timers(phba);
9967
9968         /* Clean up all driver's outstanding SCSI I/Os */
9969         lpfc_sli_flush_fcp_rings(phba);
9970 }
9971
9972 /**
9973  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9974  * @pdev: pointer to PCI device.
9975  * @state: the current PCI connection state.
9976  *
9977  * This routine is called from the PCI subsystem for I/O error handling to
9978  * device with SLI-3 interface spec. This function is called by the PCI
9979  * subsystem after a PCI bus error affecting this device has been detected.
9980  * When this function is invoked, it will need to stop all the I/Os and
9981  * interrupt(s) to the device. Once that is done, it will return
9982  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9983  * as desired.
9984  *
9985  * Return codes
9986  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9987  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9988  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9989  **/
9990 static pci_ers_result_t
9991 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9992 {
9993         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9994         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9995
9996         switch (state) {
9997         case pci_channel_io_normal:
9998                 /* Non-fatal error, prepare for recovery */
9999                 lpfc_sli_prep_dev_for_recover(phba);
10000                 return PCI_ERS_RESULT_CAN_RECOVER;
10001         case pci_channel_io_frozen:
10002                 /* Fatal error, prepare for slot reset */
10003                 lpfc_sli_prep_dev_for_reset(phba);
10004                 return PCI_ERS_RESULT_NEED_RESET;
10005         case pci_channel_io_perm_failure:
10006                 /* Permanent failure, prepare for device down */
10007                 lpfc_sli_prep_dev_for_perm_failure(phba);
10008                 return PCI_ERS_RESULT_DISCONNECT;
10009         default:
10010                 /* Unknown state, prepare and request slot reset */
10011                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10012                                 "0472 Unknown PCI error state: x%x\n", state);
10013                 lpfc_sli_prep_dev_for_reset(phba);
10014                 return PCI_ERS_RESULT_NEED_RESET;
10015         }
10016 }
10017
10018 /**
10019  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10020  * @pdev: pointer to PCI device.
10021  *
10022  * This routine is called from the PCI subsystem for error handling to
10023  * device with SLI-3 interface spec. This is called after PCI bus has been
10024  * reset to restart the PCI card from scratch, as if from a cold-boot.
10025  * During the PCI subsystem error recovery, after driver returns
10026  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10027  * recovery and then call this routine before calling the .resume method
10028  * to recover the device. This function will initialize the HBA device,
10029  * enable the interrupt, but it will just put the HBA to offline state
10030  * without passing any I/O traffic.
10031  *
10032  * Return codes
10033  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10034  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10035  */
10036 static pci_ers_result_t
10037 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10038 {
10039         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10040         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10041         struct lpfc_sli *psli = &phba->sli;
10042         uint32_t intr_mode;
10043
10044         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10045         if (pci_enable_device_mem(pdev)) {
10046                 printk(KERN_ERR "lpfc: Cannot re-enable "
10047                         "PCI device after reset.\n");
10048                 return PCI_ERS_RESULT_DISCONNECT;
10049         }
10050
10051         pci_restore_state(pdev);
10052
10053         /*
10054          * As the new kernel behavior of pci_restore_state() API call clears
10055          * device saved_state flag, need to save the restored state again.
10056          */
10057         pci_save_state(pdev);
10058
10059         if (pdev->is_busmaster)
10060                 pci_set_master(pdev);
10061
10062         spin_lock_irq(&phba->hbalock);
10063         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10064         spin_unlock_irq(&phba->hbalock);
10065
10066         /* Configure and enable interrupt */
10067         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10068         if (intr_mode == LPFC_INTR_ERROR) {
10069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10070                                 "0427 Cannot re-enable interrupt after "
10071                                 "slot reset.\n");
10072                 return PCI_ERS_RESULT_DISCONNECT;
10073         } else
10074                 phba->intr_mode = intr_mode;
10075
10076         /* Take device offline, it will perform cleanup */
10077         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10078         lpfc_offline(phba);
10079         lpfc_sli_brdrestart(phba);
10080
10081         /* Log the current active interrupt mode */
10082         lpfc_log_intr_mode(phba, phba->intr_mode);
10083
10084         return PCI_ERS_RESULT_RECOVERED;
10085 }
10086
10087 /**
10088  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10089  * @pdev: pointer to PCI device
10090  *
10091  * This routine is called from the PCI subsystem for error handling to device
10092  * with SLI-3 interface spec. It is called when kernel error recovery tells
10093  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10094  * error recovery. After this call, traffic can start to flow from this device
10095  * again.
10096  */
10097 static void
10098 lpfc_io_resume_s3(struct pci_dev *pdev)
10099 {
10100         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10101         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10102
10103         /* Bring device online, it will be no-op for non-fatal error resume */
10104         lpfc_online(phba);
10105
10106         /* Clean up Advanced Error Reporting (AER) if needed */
10107         if (phba->hba_flag & HBA_AER_ENABLED)
10108                 pci_cleanup_aer_uncorrect_error_status(pdev);
10109 }
10110
10111 /**
10112  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10113  * @phba: pointer to lpfc hba data structure.
10114  *
10115  * returns the number of ELS/CT IOCBs to reserve
10116  **/
10117 int
10118 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10119 {
10120         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10121
10122         if (phba->sli_rev == LPFC_SLI_REV4) {
10123                 if (max_xri <= 100)
10124                         return 10;
10125                 else if (max_xri <= 256)
10126                         return 25;
10127                 else if (max_xri <= 512)
10128                         return 50;
10129                 else if (max_xri <= 1024)
10130                         return 100;
10131                 else if (max_xri <= 1536)
10132                         return 150;
10133                 else if (max_xri <= 2048)
10134                         return 200;
10135                 else
10136                         return 250;
10137         } else
10138                 return 0;
10139 }
10140
10141 /**
10142  * lpfc_write_firmware - attempt to write a firmware image to the port
10143  * @fw: pointer to firmware image returned from request_firmware.
10144  * @phba: pointer to lpfc hba data structure.
10145  *
10146  **/
10147 static void
10148 lpfc_write_firmware(const struct firmware *fw, void *context)
10149 {
10150         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10151         char fwrev[FW_REV_STR_SIZE];
10152         struct lpfc_grp_hdr *image;
10153         struct list_head dma_buffer_list;
10154         int i, rc = 0;
10155         struct lpfc_dmabuf *dmabuf, *next;
10156         uint32_t offset = 0, temp_offset = 0;
10157
10158         /* It can be null in no-wait mode, sanity check */
10159         if (!fw) {
10160                 rc = -ENXIO;
10161                 goto out;
10162         }
10163         image = (struct lpfc_grp_hdr *)fw->data;
10164
10165         INIT_LIST_HEAD(&dma_buffer_list);
10166         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10167             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10168              LPFC_FILE_TYPE_GROUP) ||
10169             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10170             (be32_to_cpu(image->size) != fw->size)) {
10171                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10172                                 "3022 Invalid FW image found. "
10173                                 "Magic:%x Type:%x ID:%x\n",
10174                                 be32_to_cpu(image->magic_number),
10175                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10176                                 bf_get_be32(lpfc_grp_hdr_id, image));
10177                 rc = -EINVAL;
10178                 goto release_out;
10179         }
10180         lpfc_decode_firmware_rev(phba, fwrev, 1);
10181         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10183                                 "3023 Updating Firmware, Current Version:%s "
10184                                 "New Version:%s\n",
10185                                 fwrev, image->revision);
10186                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10187                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10188                                          GFP_KERNEL);
10189                         if (!dmabuf) {
10190                                 rc = -ENOMEM;
10191                                 goto release_out;
10192                         }
10193                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10194                                                           SLI4_PAGE_SIZE,
10195                                                           &dmabuf->phys,
10196                                                           GFP_KERNEL);
10197                         if (!dmabuf->virt) {
10198                                 kfree(dmabuf);
10199                                 rc = -ENOMEM;
10200                                 goto release_out;
10201                         }
10202                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10203                 }
10204                 while (offset < fw->size) {
10205                         temp_offset = offset;
10206                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10207                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10208                                         memcpy(dmabuf->virt,
10209                                                fw->data + temp_offset,
10210                                                fw->size - temp_offset);
10211                                         temp_offset = fw->size;
10212                                         break;
10213                                 }
10214                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10215                                        SLI4_PAGE_SIZE);
10216                                 temp_offset += SLI4_PAGE_SIZE;
10217                         }
10218                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10219                                     (fw->size - offset), &offset);
10220                         if (rc)
10221                                 goto release_out;
10222                 }
10223                 rc = offset;
10224         }
10225
10226 release_out:
10227         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10228                 list_del(&dmabuf->list);
10229                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10230                                   dmabuf->virt, dmabuf->phys);
10231                 kfree(dmabuf);
10232         }
10233         release_firmware(fw);
10234 out:
10235         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10236                         "3024 Firmware update done: %d.\n", rc);
10237         return;
10238 }
10239
10240 /**
10241  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10242  * @phba: pointer to lpfc hba data structure.
10243  *
10244  * This routine is called to perform Linux generic firmware upgrade on device
10245  * that supports such feature.
10246  **/
10247 int
10248 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10249 {
10250         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10251         int ret;
10252         const struct firmware *fw;
10253
10254         /* Only supported on SLI4 interface type 2 for now */
10255         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10256             LPFC_SLI_INTF_IF_TYPE_2)
10257                 return -EPERM;
10258
10259         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10260
10261         if (fw_upgrade == INT_FW_UPGRADE) {
10262                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10263                                         file_name, &phba->pcidev->dev,
10264                                         GFP_KERNEL, (void *)phba,
10265                                         lpfc_write_firmware);
10266         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10267                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10268                 if (!ret)
10269                         lpfc_write_firmware(fw, (void *)phba);
10270         } else {
10271                 ret = -EINVAL;
10272         }
10273
10274         return ret;
10275 }
10276
10277 /**
10278  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10279  * @pdev: pointer to PCI device
10280  * @pid: pointer to PCI device identifier
10281  *
10282  * This routine is called from the kernel's PCI subsystem to device with
10283  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10284  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10285  * information of the device and driver to see if the driver state that it
10286  * can support this kind of device. If the match is successful, the driver
10287  * core invokes this routine. If this routine determines it can claim the HBA,
10288  * it does all the initialization that it needs to do to handle the HBA
10289  * properly.
10290  *
10291  * Return code
10292  *      0 - driver can claim the device
10293  *      negative value - driver can not claim the device
10294  **/
10295 static int
10296 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10297 {
10298         struct lpfc_hba   *phba;
10299         struct lpfc_vport *vport = NULL;
10300         struct Scsi_Host  *shost = NULL;
10301         int error;
10302         uint32_t cfg_mode, intr_mode;
10303         int adjusted_fcp_io_channel;
10304
10305         /* Allocate memory for HBA structure */
10306         phba = lpfc_hba_alloc(pdev);
10307         if (!phba)
10308                 return -ENOMEM;
10309
10310         /* Perform generic PCI device enabling operation */
10311         error = lpfc_enable_pci_dev(phba);
10312         if (error)
10313                 goto out_free_phba;
10314
10315         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10316         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10317         if (error)
10318                 goto out_disable_pci_dev;
10319
10320         /* Set up SLI-4 specific device PCI memory space */
10321         error = lpfc_sli4_pci_mem_setup(phba);
10322         if (error) {
10323                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10324                                 "1410 Failed to set up pci memory space.\n");
10325                 goto out_disable_pci_dev;
10326         }
10327
10328         /* Set up phase-1 common device driver resources */
10329         error = lpfc_setup_driver_resource_phase1(phba);
10330         if (error) {
10331                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10332                                 "1411 Failed to set up driver resource.\n");
10333                 goto out_unset_pci_mem_s4;
10334         }
10335
10336         /* Set up SLI-4 Specific device driver resources */
10337         error = lpfc_sli4_driver_resource_setup(phba);
10338         if (error) {
10339                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10340                                 "1412 Failed to set up driver resource.\n");
10341                 goto out_unset_pci_mem_s4;
10342         }
10343
10344         /* Initialize and populate the iocb list per host */
10345
10346         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10347                         "2821 initialize iocb list %d.\n",
10348                         phba->cfg_iocb_cnt*1024);
10349         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10350
10351         if (error) {
10352                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10353                                 "1413 Failed to initialize iocb list.\n");
10354                 goto out_unset_driver_resource_s4;
10355         }
10356
10357         INIT_LIST_HEAD(&phba->active_rrq_list);
10358         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10359
10360         /* Set up common device driver resources */
10361         error = lpfc_setup_driver_resource_phase2(phba);
10362         if (error) {
10363                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10364                                 "1414 Failed to set up driver resource.\n");
10365                 goto out_free_iocb_list;
10366         }
10367
10368         /* Get the default values for Model Name and Description */
10369         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10370
10371         /* Create SCSI host to the physical port */
10372         error = lpfc_create_shost(phba);
10373         if (error) {
10374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10375                                 "1415 Failed to create scsi host.\n");
10376                 goto out_unset_driver_resource;
10377         }
10378
10379         /* Configure sysfs attributes */
10380         vport = phba->pport;
10381         error = lpfc_alloc_sysfs_attr(vport);
10382         if (error) {
10383                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10384                                 "1416 Failed to allocate sysfs attr\n");
10385                 goto out_destroy_shost;
10386         }
10387
10388         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10389         /* Now, trying to enable interrupt and bring up the device */
10390         cfg_mode = phba->cfg_use_msi;
10391
10392         /* Put device to a known state before enabling interrupt */
10393         lpfc_stop_port(phba);
10394         /* Configure and enable interrupt */
10395         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10396         if (intr_mode == LPFC_INTR_ERROR) {
10397                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10398                                 "0426 Failed to enable interrupt.\n");
10399                 error = -ENODEV;
10400                 goto out_free_sysfs_attr;
10401         }
10402         /* Default to single EQ for non-MSI-X */
10403         if (phba->intr_type != MSIX)
10404                 adjusted_fcp_io_channel = 1;
10405         else
10406                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10407         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10408         /* Set up SLI-4 HBA */
10409         if (lpfc_sli4_hba_setup(phba)) {
10410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10411                                 "1421 Failed to set up hba\n");
10412                 error = -ENODEV;
10413                 goto out_disable_intr;
10414         }
10415
10416         /* Log the current active interrupt mode */
10417         phba->intr_mode = intr_mode;
10418         lpfc_log_intr_mode(phba, intr_mode);
10419
10420         /* Perform post initialization setup */
10421         lpfc_post_init_setup(phba);
10422
10423         /* check for firmware upgrade or downgrade */
10424         if (phba->cfg_request_firmware_upgrade)
10425                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10426
10427         /* Check if there are static vports to be created. */
10428         lpfc_create_static_vport(phba);
10429         return 0;
10430
10431 out_disable_intr:
10432         lpfc_sli4_disable_intr(phba);
10433 out_free_sysfs_attr:
10434         lpfc_free_sysfs_attr(vport);
10435 out_destroy_shost:
10436         lpfc_destroy_shost(phba);
10437 out_unset_driver_resource:
10438         lpfc_unset_driver_resource_phase2(phba);
10439 out_free_iocb_list:
10440         lpfc_free_iocb_list(phba);
10441 out_unset_driver_resource_s4:
10442         lpfc_sli4_driver_resource_unset(phba);
10443 out_unset_pci_mem_s4:
10444         lpfc_sli4_pci_mem_unset(phba);
10445 out_disable_pci_dev:
10446         lpfc_disable_pci_dev(phba);
10447         if (shost)
10448                 scsi_host_put(shost);
10449 out_free_phba:
10450         lpfc_hba_free(phba);
10451         return error;
10452 }
10453
10454 /**
10455  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10456  * @pdev: pointer to PCI device
10457  *
10458  * This routine is called from the kernel's PCI subsystem to device with
10459  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10460  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10461  * device to be removed from the PCI subsystem properly.
10462  **/
10463 static void
10464 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10465 {
10466         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10467         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10468         struct lpfc_vport **vports;
10469         struct lpfc_hba *phba = vport->phba;
10470         int i;
10471
10472         /* Mark the device unloading flag */
10473         spin_lock_irq(&phba->hbalock);
10474         vport->load_flag |= FC_UNLOADING;
10475         spin_unlock_irq(&phba->hbalock);
10476
10477         /* Free the HBA sysfs attributes */
10478         lpfc_free_sysfs_attr(vport);
10479
10480         /* Release all the vports against this physical port */
10481         vports = lpfc_create_vport_work_array(phba);
10482         if (vports != NULL)
10483                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10484                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10485                                 continue;
10486                         fc_vport_terminate(vports[i]->fc_vport);
10487                 }
10488         lpfc_destroy_vport_work_array(phba, vports);
10489
10490         /* Remove FC host and then SCSI host with the physical port */
10491         fc_remove_host(shost);
10492         scsi_remove_host(shost);
10493
10494         /* Perform cleanup on the physical port */
10495         lpfc_cleanup(vport);
10496
10497         /*
10498          * Bring down the SLI Layer. This step disables all interrupts,
10499          * clears the rings, discards all mailbox commands, and resets
10500          * the HBA FCoE function.
10501          */
10502         lpfc_debugfs_terminate(vport);
10503         lpfc_sli4_hba_unset(phba);
10504
10505         spin_lock_irq(&phba->hbalock);
10506         list_del_init(&vport->listentry);
10507         spin_unlock_irq(&phba->hbalock);
10508
10509         /* Perform scsi free before driver resource_unset since scsi
10510          * buffers are released to their corresponding pools here.
10511          */
10512         lpfc_scsi_free(phba);
10513
10514         lpfc_sli4_driver_resource_unset(phba);
10515
10516         /* Unmap adapter Control and Doorbell registers */
10517         lpfc_sli4_pci_mem_unset(phba);
10518
10519         /* Release PCI resources and disable device's PCI function */
10520         scsi_host_put(shost);
10521         lpfc_disable_pci_dev(phba);
10522
10523         /* Finally, free the driver's device data structure */
10524         lpfc_hba_free(phba);
10525
10526         return;
10527 }
10528
10529 /**
10530  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10531  * @pdev: pointer to PCI device
10532  * @msg: power management message
10533  *
10534  * This routine is called from the kernel's PCI subsystem to support system
10535  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10536  * this method, it quiesces the device by stopping the driver's worker
10537  * thread for the device, turning off device's interrupt and DMA, and bring
10538  * the device offline. Note that as the driver implements the minimum PM
10539  * requirements to a power-aware driver's PM support for suspend/resume -- all
10540  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10541  * method call will be treated as SUSPEND and the driver will fully
10542  * reinitialize its device during resume() method call, the driver will set
10543  * device to PCI_D3hot state in PCI config space instead of setting it
10544  * according to the @msg provided by the PM.
10545  *
10546  * Return code
10547  *      0 - driver suspended the device
10548  *      Error otherwise
10549  **/
10550 static int
10551 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10552 {
10553         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10554         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10555
10556         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10557                         "2843 PCI device Power Management suspend.\n");
10558
10559         /* Bring down the device */
10560         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10561         lpfc_offline(phba);
10562         kthread_stop(phba->worker_thread);
10563
10564         /* Disable interrupt from device */
10565         lpfc_sli4_disable_intr(phba);
10566         lpfc_sli4_queue_destroy(phba);
10567
10568         /* Save device state to PCI config space */
10569         pci_save_state(pdev);
10570         pci_set_power_state(pdev, PCI_D3hot);
10571
10572         return 0;
10573 }
10574
10575 /**
10576  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10577  * @pdev: pointer to PCI device
10578  *
10579  * This routine is called from the kernel's PCI subsystem to support system
10580  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10581  * this method, it restores the device's PCI config space state and fully
10582  * reinitializes the device and brings it online. Note that as the driver
10583  * implements the minimum PM requirements to a power-aware driver's PM for
10584  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10585  * to the suspend() method call will be treated as SUSPEND and the driver
10586  * will fully reinitialize its device during resume() method call, the device
10587  * will be set to PCI_D0 directly in PCI config space before restoring the
10588  * state.
10589  *
10590  * Return code
10591  *      0 - driver suspended the device
10592  *      Error otherwise
10593  **/
10594 static int
10595 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10596 {
10597         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10598         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10599         uint32_t intr_mode;
10600         int error;
10601
10602         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10603                         "0292 PCI device Power Management resume.\n");
10604
10605         /* Restore device state from PCI config space */
10606         pci_set_power_state(pdev, PCI_D0);
10607         pci_restore_state(pdev);
10608
10609         /*
10610          * As the new kernel behavior of pci_restore_state() API call clears
10611          * device saved_state flag, need to save the restored state again.
10612          */
10613         pci_save_state(pdev);
10614
10615         if (pdev->is_busmaster)
10616                 pci_set_master(pdev);
10617
10618          /* Startup the kernel thread for this host adapter. */
10619         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10620                                         "lpfc_worker_%d", phba->brd_no);
10621         if (IS_ERR(phba->worker_thread)) {
10622                 error = PTR_ERR(phba->worker_thread);
10623                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10624                                 "0293 PM resume failed to start worker "
10625                                 "thread: error=x%x.\n", error);
10626                 return error;
10627         }
10628
10629         /* Configure and enable interrupt */
10630         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10631         if (intr_mode == LPFC_INTR_ERROR) {
10632                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10633                                 "0294 PM resume Failed to enable interrupt\n");
10634                 return -EIO;
10635         } else
10636                 phba->intr_mode = intr_mode;
10637
10638         /* Restart HBA and bring it online */
10639         lpfc_sli_brdrestart(phba);
10640         lpfc_online(phba);
10641
10642         /* Log the current active interrupt mode */
10643         lpfc_log_intr_mode(phba, phba->intr_mode);
10644
10645         return 0;
10646 }
10647
10648 /**
10649  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10650  * @phba: pointer to lpfc hba data structure.
10651  *
10652  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10653  * aborts all the outstanding SCSI I/Os to the pci device.
10654  **/
10655 static void
10656 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10657 {
10658         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10659                         "2828 PCI channel I/O abort preparing for recovery\n");
10660         /*
10661          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10662          * and let the SCSI mid-layer to retry them to recover.
10663          */
10664         lpfc_sli_abort_fcp_rings(phba);
10665 }
10666
10667 /**
10668  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10669  * @phba: pointer to lpfc hba data structure.
10670  *
10671  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10672  * disables the device interrupt and pci device, and aborts the internal FCP
10673  * pending I/Os.
10674  **/
10675 static void
10676 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10677 {
10678         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10679                         "2826 PCI channel disable preparing for reset\n");
10680
10681         /* Block any management I/Os to the device */
10682         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10683
10684         /* Block all SCSI devices' I/Os on the host */
10685         lpfc_scsi_dev_block(phba);
10686
10687         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10688         lpfc_sli_flush_fcp_rings(phba);
10689
10690         /* stop all timers */
10691         lpfc_stop_hba_timers(phba);
10692
10693         /* Disable interrupt and pci device */
10694         lpfc_sli4_disable_intr(phba);
10695         lpfc_sli4_queue_destroy(phba);
10696         pci_disable_device(phba->pcidev);
10697 }
10698
10699 /**
10700  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10701  * @phba: pointer to lpfc hba data structure.
10702  *
10703  * This routine is called to prepare the SLI4 device for PCI slot permanently
10704  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10705  * pending I/Os.
10706  **/
10707 static void
10708 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10709 {
10710         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10711                         "2827 PCI channel permanent disable for failure\n");
10712
10713         /* Block all SCSI devices' I/Os on the host */
10714         lpfc_scsi_dev_block(phba);
10715
10716         /* stop all timers */
10717         lpfc_stop_hba_timers(phba);
10718
10719         /* Clean up all driver's outstanding SCSI I/Os */
10720         lpfc_sli_flush_fcp_rings(phba);
10721 }
10722
10723 /**
10724  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10725  * @pdev: pointer to PCI device.
10726  * @state: the current PCI connection state.
10727  *
10728  * This routine is called from the PCI subsystem for error handling to device
10729  * with SLI-4 interface spec. This function is called by the PCI subsystem
10730  * after a PCI bus error affecting this device has been detected. When this
10731  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10732  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10733  * for the PCI subsystem to perform proper recovery as desired.
10734  *
10735  * Return codes
10736  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10737  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10738  **/
10739 static pci_ers_result_t
10740 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10741 {
10742         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10743         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10744
10745         switch (state) {
10746         case pci_channel_io_normal:
10747                 /* Non-fatal error, prepare for recovery */
10748                 lpfc_sli4_prep_dev_for_recover(phba);
10749                 return PCI_ERS_RESULT_CAN_RECOVER;
10750         case pci_channel_io_frozen:
10751                 /* Fatal error, prepare for slot reset */
10752                 lpfc_sli4_prep_dev_for_reset(phba);
10753                 return PCI_ERS_RESULT_NEED_RESET;
10754         case pci_channel_io_perm_failure:
10755                 /* Permanent failure, prepare for device down */
10756                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10757                 return PCI_ERS_RESULT_DISCONNECT;
10758         default:
10759                 /* Unknown state, prepare and request slot reset */
10760                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10761                                 "2825 Unknown PCI error state: x%x\n", state);
10762                 lpfc_sli4_prep_dev_for_reset(phba);
10763                 return PCI_ERS_RESULT_NEED_RESET;
10764         }
10765 }
10766
10767 /**
10768  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10769  * @pdev: pointer to PCI device.
10770  *
10771  * This routine is called from the PCI subsystem for error handling to device
10772  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10773  * restart the PCI card from scratch, as if from a cold-boot. During the
10774  * PCI subsystem error recovery, after the driver returns
10775  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10776  * recovery and then call this routine before calling the .resume method to
10777  * recover the device. This function will initialize the HBA device, enable
10778  * the interrupt, but it will just put the HBA to offline state without
10779  * passing any I/O traffic.
10780  *
10781  * Return codes
10782  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10783  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10784  */
10785 static pci_ers_result_t
10786 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10787 {
10788         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10789         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10790         struct lpfc_sli *psli = &phba->sli;
10791         uint32_t intr_mode;
10792
10793         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10794         if (pci_enable_device_mem(pdev)) {
10795                 printk(KERN_ERR "lpfc: Cannot re-enable "
10796                         "PCI device after reset.\n");
10797                 return PCI_ERS_RESULT_DISCONNECT;
10798         }
10799
10800         pci_restore_state(pdev);
10801
10802         /*
10803          * As the new kernel behavior of pci_restore_state() API call clears
10804          * device saved_state flag, need to save the restored state again.
10805          */
10806         pci_save_state(pdev);
10807
10808         if (pdev->is_busmaster)
10809                 pci_set_master(pdev);
10810
10811         spin_lock_irq(&phba->hbalock);
10812         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10813         spin_unlock_irq(&phba->hbalock);
10814
10815         /* Configure and enable interrupt */
10816         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10817         if (intr_mode == LPFC_INTR_ERROR) {
10818                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10819                                 "2824 Cannot re-enable interrupt after "
10820                                 "slot reset.\n");
10821                 return PCI_ERS_RESULT_DISCONNECT;
10822         } else
10823                 phba->intr_mode = intr_mode;
10824
10825         /* Log the current active interrupt mode */
10826         lpfc_log_intr_mode(phba, phba->intr_mode);
10827
10828         return PCI_ERS_RESULT_RECOVERED;
10829 }
10830
10831 /**
10832  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10833  * @pdev: pointer to PCI device
10834  *
10835  * This routine is called from the PCI subsystem for error handling to device
10836  * with SLI-4 interface spec. It is called when kernel error recovery tells
10837  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10838  * error recovery. After this call, traffic can start to flow from this device
10839  * again.
10840  **/
10841 static void
10842 lpfc_io_resume_s4(struct pci_dev *pdev)
10843 {
10844         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10845         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10846
10847         /*
10848          * In case of slot reset, as function reset is performed through
10849          * mailbox command which needs DMA to be enabled, this operation
10850          * has to be moved to the io resume phase. Taking device offline
10851          * will perform the necessary cleanup.
10852          */
10853         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10854                 /* Perform device reset */
10855                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10856                 lpfc_offline(phba);
10857                 lpfc_sli_brdrestart(phba);
10858                 /* Bring the device back online */
10859                 lpfc_online(phba);
10860         }
10861
10862         /* Clean up Advanced Error Reporting (AER) if needed */
10863         if (phba->hba_flag & HBA_AER_ENABLED)
10864                 pci_cleanup_aer_uncorrect_error_status(pdev);
10865 }
10866
10867 /**
10868  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10869  * @pdev: pointer to PCI device
10870  * @pid: pointer to PCI device identifier
10871  *
10872  * This routine is to be registered to the kernel's PCI subsystem. When an
10873  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10874  * at PCI device-specific information of the device and driver to see if the
10875  * driver state that it can support this kind of device. If the match is
10876  * successful, the driver core invokes this routine. This routine dispatches
10877  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10878  * do all the initialization that it needs to do to handle the HBA device
10879  * properly.
10880  *
10881  * Return code
10882  *      0 - driver can claim the device
10883  *      negative value - driver can not claim the device
10884  **/
10885 static int
10886 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10887 {
10888         int rc;
10889         struct lpfc_sli_intf intf;
10890
10891         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10892                 return -ENODEV;
10893
10894         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10895             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10896                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10897         else
10898                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10899
10900         return rc;
10901 }
10902
10903 /**
10904  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10905  * @pdev: pointer to PCI device
10906  *
10907  * This routine is to be registered to the kernel's PCI subsystem. When an
10908  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10909  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10910  * remove routine, which will perform all the necessary cleanup for the
10911  * device to be removed from the PCI subsystem properly.
10912  **/
10913 static void
10914 lpfc_pci_remove_one(struct pci_dev *pdev)
10915 {
10916         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10917         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10918
10919         switch (phba->pci_dev_grp) {
10920         case LPFC_PCI_DEV_LP:
10921                 lpfc_pci_remove_one_s3(pdev);
10922                 break;
10923         case LPFC_PCI_DEV_OC:
10924                 lpfc_pci_remove_one_s4(pdev);
10925                 break;
10926         default:
10927                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10928                                 "1424 Invalid PCI device group: 0x%x\n",
10929                                 phba->pci_dev_grp);
10930                 break;
10931         }
10932         return;
10933 }
10934
10935 /**
10936  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10937  * @pdev: pointer to PCI device
10938  * @msg: power management message
10939  *
10940  * This routine is to be registered to the kernel's PCI subsystem to support
10941  * system Power Management (PM). When PM invokes this method, it dispatches
10942  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10943  * suspend the device.
10944  *
10945  * Return code
10946  *      0 - driver suspended the device
10947  *      Error otherwise
10948  **/
10949 static int
10950 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10951 {
10952         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10953         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10954         int rc = -ENODEV;
10955
10956         switch (phba->pci_dev_grp) {
10957         case LPFC_PCI_DEV_LP:
10958                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10959                 break;
10960         case LPFC_PCI_DEV_OC:
10961                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10962                 break;
10963         default:
10964                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10965                                 "1425 Invalid PCI device group: 0x%x\n",
10966                                 phba->pci_dev_grp);
10967                 break;
10968         }
10969         return rc;
10970 }
10971
10972 /**
10973  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10974  * @pdev: pointer to PCI device
10975  *
10976  * This routine is to be registered to the kernel's PCI subsystem to support
10977  * system Power Management (PM). When PM invokes this method, it dispatches
10978  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10979  * resume the device.
10980  *
10981  * Return code
10982  *      0 - driver suspended the device
10983  *      Error otherwise
10984  **/
10985 static int
10986 lpfc_pci_resume_one(struct pci_dev *pdev)
10987 {
10988         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10989         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10990         int rc = -ENODEV;
10991
10992         switch (phba->pci_dev_grp) {
10993         case LPFC_PCI_DEV_LP:
10994                 rc = lpfc_pci_resume_one_s3(pdev);
10995                 break;
10996         case LPFC_PCI_DEV_OC:
10997                 rc = lpfc_pci_resume_one_s4(pdev);
10998                 break;
10999         default:
11000                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11001                                 "1426 Invalid PCI device group: 0x%x\n",
11002                                 phba->pci_dev_grp);
11003                 break;
11004         }
11005         return rc;
11006 }
11007
11008 /**
11009  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11010  * @pdev: pointer to PCI device.
11011  * @state: the current PCI connection state.
11012  *
11013  * This routine is registered to the PCI subsystem for error handling. This
11014  * function is called by the PCI subsystem after a PCI bus error affecting
11015  * this device has been detected. When this routine is invoked, it dispatches
11016  * the action to the proper SLI-3 or SLI-4 device error detected handling
11017  * routine, which will perform the proper error detected operation.
11018  *
11019  * Return codes
11020  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11021  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11022  **/
11023 static pci_ers_result_t
11024 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11025 {
11026         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11027         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11028         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11029
11030         switch (phba->pci_dev_grp) {
11031         case LPFC_PCI_DEV_LP:
11032                 rc = lpfc_io_error_detected_s3(pdev, state);
11033                 break;
11034         case LPFC_PCI_DEV_OC:
11035                 rc = lpfc_io_error_detected_s4(pdev, state);
11036                 break;
11037         default:
11038                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11039                                 "1427 Invalid PCI device group: 0x%x\n",
11040                                 phba->pci_dev_grp);
11041                 break;
11042         }
11043         return rc;
11044 }
11045
11046 /**
11047  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11048  * @pdev: pointer to PCI device.
11049  *
11050  * This routine is registered to the PCI subsystem for error handling. This
11051  * function is called after PCI bus has been reset to restart the PCI card
11052  * from scratch, as if from a cold-boot. When this routine is invoked, it
11053  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11054  * routine, which will perform the proper device reset.
11055  *
11056  * Return codes
11057  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11058  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11059  **/
11060 static pci_ers_result_t
11061 lpfc_io_slot_reset(struct pci_dev *pdev)
11062 {
11063         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11064         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11065         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11066
11067         switch (phba->pci_dev_grp) {
11068         case LPFC_PCI_DEV_LP:
11069                 rc = lpfc_io_slot_reset_s3(pdev);
11070                 break;
11071         case LPFC_PCI_DEV_OC:
11072                 rc = lpfc_io_slot_reset_s4(pdev);
11073                 break;
11074         default:
11075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11076                                 "1428 Invalid PCI device group: 0x%x\n",
11077                                 phba->pci_dev_grp);
11078                 break;
11079         }
11080         return rc;
11081 }
11082
11083 /**
11084  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11085  * @pdev: pointer to PCI device
11086  *
11087  * This routine is registered to the PCI subsystem for error handling. It
11088  * is called when kernel error recovery tells the lpfc driver that it is
11089  * OK to resume normal PCI operation after PCI bus error recovery. When
11090  * this routine is invoked, it dispatches the action to the proper SLI-3
11091  * or SLI-4 device io_resume routine, which will resume the device operation.
11092  **/
11093 static void
11094 lpfc_io_resume(struct pci_dev *pdev)
11095 {
11096         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11097         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11098
11099         switch (phba->pci_dev_grp) {
11100         case LPFC_PCI_DEV_LP:
11101                 lpfc_io_resume_s3(pdev);
11102                 break;
11103         case LPFC_PCI_DEV_OC:
11104                 lpfc_io_resume_s4(pdev);
11105                 break;
11106         default:
11107                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11108                                 "1429 Invalid PCI device group: 0x%x\n",
11109                                 phba->pci_dev_grp);
11110                 break;
11111         }
11112         return;
11113 }
11114
11115 /**
11116  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11117  * @phba: pointer to lpfc hba data structure.
11118  *
11119  * This routine checks to see if OAS is supported for this adapter. If
11120  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11121  * the enable oas flag is cleared and the pool created for OAS device data
11122  * is destroyed.
11123  *
11124  **/
11125 void
11126 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11127 {
11128
11129         if (!phba->cfg_EnableXLane)
11130                 return;
11131
11132         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11133                 phba->cfg_fof = 1;
11134         } else {
11135                 phba->cfg_fof = 0;
11136                 if (phba->device_data_mem_pool)
11137                         mempool_destroy(phba->device_data_mem_pool);
11138                 phba->device_data_mem_pool = NULL;
11139         }
11140
11141         return;
11142 }
11143
11144 /**
11145  * lpfc_fof_queue_setup - Set up all the fof queues
11146  * @phba: pointer to lpfc hba data structure.
11147  *
11148  * This routine is invoked to set up all the fof queues for the FC HBA
11149  * operation.
11150  *
11151  * Return codes
11152  *      0 - successful
11153  *      -ENOMEM - No available memory
11154  **/
11155 int
11156 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11157 {
11158         struct lpfc_sli *psli = &phba->sli;
11159         int rc;
11160
11161         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11162         if (rc)
11163                 return -ENOMEM;
11164
11165         if (phba->cfg_fof) {
11166
11167                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11168                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11169                 if (rc)
11170                         goto out_oas_cq;
11171
11172                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11173                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11174                 if (rc)
11175                         goto out_oas_wq;
11176
11177                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11178                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11179         }
11180
11181         return 0;
11182
11183 out_oas_wq:
11184         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11185 out_oas_cq:
11186         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11187         return rc;
11188
11189 }
11190
11191 /**
11192  * lpfc_fof_queue_create - Create all the fof queues
11193  * @phba: pointer to lpfc hba data structure.
11194  *
11195  * This routine is invoked to allocate all the fof queues for the FC HBA
11196  * operation. For each SLI4 queue type, the parameters such as queue entry
11197  * count (queue depth) shall be taken from the module parameter. For now,
11198  * we just use some constant number as place holder.
11199  *
11200  * Return codes
11201  *      0 - successful
11202  *      -ENOMEM - No availble memory
11203  *      -EIO - The mailbox failed to complete successfully.
11204  **/
11205 int
11206 lpfc_fof_queue_create(struct lpfc_hba *phba)
11207 {
11208         struct lpfc_queue *qdesc;
11209
11210         /* Create FOF EQ */
11211         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11212                                       phba->sli4_hba.eq_ecount);
11213         if (!qdesc)
11214                 goto out_error;
11215
11216         phba->sli4_hba.fof_eq = qdesc;
11217
11218         if (phba->cfg_fof) {
11219
11220                 /* Create OAS CQ */
11221                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11222                                                       phba->sli4_hba.cq_ecount);
11223                 if (!qdesc)
11224                         goto out_error;
11225
11226                 phba->sli4_hba.oas_cq = qdesc;
11227
11228                 /* Create OAS WQ */
11229                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11230                                               phba->sli4_hba.wq_ecount);
11231                 if (!qdesc)
11232                         goto out_error;
11233
11234                 phba->sli4_hba.oas_wq = qdesc;
11235
11236         }
11237         return 0;
11238
11239 out_error:
11240         lpfc_fof_queue_destroy(phba);
11241         return -ENOMEM;
11242 }
11243
11244 /**
11245  * lpfc_fof_queue_destroy - Destroy all the fof queues
11246  * @phba: pointer to lpfc hba data structure.
11247  *
11248  * This routine is invoked to release all the SLI4 queues with the FC HBA
11249  * operation.
11250  *
11251  * Return codes
11252  *      0 - successful
11253  **/
11254 int
11255 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11256 {
11257         /* Release FOF Event queue */
11258         if (phba->sli4_hba.fof_eq != NULL) {
11259                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11260                 phba->sli4_hba.fof_eq = NULL;
11261         }
11262
11263         /* Release OAS Completion queue */
11264         if (phba->sli4_hba.oas_cq != NULL) {
11265                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11266                 phba->sli4_hba.oas_cq = NULL;
11267         }
11268
11269         /* Release OAS Work queue */
11270         if (phba->sli4_hba.oas_wq != NULL) {
11271                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11272                 phba->sli4_hba.oas_wq = NULL;
11273         }
11274         return 0;
11275 }
11276
11277 static struct pci_device_id lpfc_id_table[] = {
11278         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11279                 PCI_ANY_ID, PCI_ANY_ID, },
11280         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11281                 PCI_ANY_ID, PCI_ANY_ID, },
11282         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11283                 PCI_ANY_ID, PCI_ANY_ID, },
11284         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11285                 PCI_ANY_ID, PCI_ANY_ID, },
11286         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11287                 PCI_ANY_ID, PCI_ANY_ID, },
11288         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11289                 PCI_ANY_ID, PCI_ANY_ID, },
11290         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11291                 PCI_ANY_ID, PCI_ANY_ID, },
11292         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11293                 PCI_ANY_ID, PCI_ANY_ID, },
11294         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11295                 PCI_ANY_ID, PCI_ANY_ID, },
11296         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11297                 PCI_ANY_ID, PCI_ANY_ID, },
11298         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11299                 PCI_ANY_ID, PCI_ANY_ID, },
11300         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11301                 PCI_ANY_ID, PCI_ANY_ID, },
11302         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11303                 PCI_ANY_ID, PCI_ANY_ID, },
11304         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11305                 PCI_ANY_ID, PCI_ANY_ID, },
11306         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11307                 PCI_ANY_ID, PCI_ANY_ID, },
11308         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11309                 PCI_ANY_ID, PCI_ANY_ID, },
11310         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11311                 PCI_ANY_ID, PCI_ANY_ID, },
11312         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11313                 PCI_ANY_ID, PCI_ANY_ID, },
11314         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11315                 PCI_ANY_ID, PCI_ANY_ID, },
11316         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11317                 PCI_ANY_ID, PCI_ANY_ID, },
11318         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11319                 PCI_ANY_ID, PCI_ANY_ID, },
11320         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11321                 PCI_ANY_ID, PCI_ANY_ID, },
11322         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11323                 PCI_ANY_ID, PCI_ANY_ID, },
11324         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11325                 PCI_ANY_ID, PCI_ANY_ID, },
11326         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11327                 PCI_ANY_ID, PCI_ANY_ID, },
11328         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11329                 PCI_ANY_ID, PCI_ANY_ID, },
11330         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11331                 PCI_ANY_ID, PCI_ANY_ID, },
11332         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11333                 PCI_ANY_ID, PCI_ANY_ID, },
11334         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11335                 PCI_ANY_ID, PCI_ANY_ID, },
11336         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11337                 PCI_ANY_ID, PCI_ANY_ID, },
11338         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11339                 PCI_ANY_ID, PCI_ANY_ID, },
11340         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11341                 PCI_ANY_ID, PCI_ANY_ID, },
11342         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11343                 PCI_ANY_ID, PCI_ANY_ID, },
11344         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11345                 PCI_ANY_ID, PCI_ANY_ID, },
11346         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11347                 PCI_ANY_ID, PCI_ANY_ID, },
11348         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11349                 PCI_ANY_ID, PCI_ANY_ID, },
11350         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11351                 PCI_ANY_ID, PCI_ANY_ID, },
11352         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11353                 PCI_ANY_ID, PCI_ANY_ID, },
11354         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11355                 PCI_ANY_ID, PCI_ANY_ID, },
11356         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11357                 PCI_ANY_ID, PCI_ANY_ID, },
11358         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11359                 PCI_ANY_ID, PCI_ANY_ID, },
11360         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11361                 PCI_ANY_ID, PCI_ANY_ID, },
11362         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11363                 PCI_ANY_ID, PCI_ANY_ID, },
11364         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11365                 PCI_ANY_ID, PCI_ANY_ID, },
11366         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11367                 PCI_ANY_ID, PCI_ANY_ID, },
11368         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC,
11369                 PCI_ANY_ID, PCI_ANY_ID, },
11370         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11371                 PCI_ANY_ID, PCI_ANY_ID, },
11372         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11373                 PCI_ANY_ID, PCI_ANY_ID, },
11374         { 0 }
11375 };
11376
11377 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11378
11379 static const struct pci_error_handlers lpfc_err_handler = {
11380         .error_detected = lpfc_io_error_detected,
11381         .slot_reset = lpfc_io_slot_reset,
11382         .resume = lpfc_io_resume,
11383 };
11384
11385 static struct pci_driver lpfc_driver = {
11386         .name           = LPFC_DRIVER_NAME,
11387         .id_table       = lpfc_id_table,
11388         .probe          = lpfc_pci_probe_one,
11389         .remove         = lpfc_pci_remove_one,
11390         .suspend        = lpfc_pci_suspend_one,
11391         .resume         = lpfc_pci_resume_one,
11392         .err_handler    = &lpfc_err_handler,
11393 };
11394
11395 static const struct file_operations lpfc_mgmt_fop = {
11396         .owner = THIS_MODULE,
11397 };
11398
11399 static struct miscdevice lpfc_mgmt_dev = {
11400         .minor = MISC_DYNAMIC_MINOR,
11401         .name = "lpfcmgmt",
11402         .fops = &lpfc_mgmt_fop,
11403 };
11404
11405 /**
11406  * lpfc_init - lpfc module initialization routine
11407  *
11408  * This routine is to be invoked when the lpfc module is loaded into the
11409  * kernel. The special kernel macro module_init() is used to indicate the
11410  * role of this routine to the kernel as lpfc module entry point.
11411  *
11412  * Return codes
11413  *   0 - successful
11414  *   -ENOMEM - FC attach transport failed
11415  *   all others - failed
11416  */
11417 static int __init
11418 lpfc_init(void)
11419 {
11420         int cpu;
11421         int error = 0;
11422
11423         printk(LPFC_MODULE_DESC "\n");
11424         printk(LPFC_COPYRIGHT "\n");
11425
11426         error = misc_register(&lpfc_mgmt_dev);
11427         if (error)
11428                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11429                         "misc_register returned with status %d", error);
11430
11431         if (lpfc_enable_npiv) {
11432                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11433                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11434         }
11435         lpfc_transport_template =
11436                                 fc_attach_transport(&lpfc_transport_functions);
11437         if (lpfc_transport_template == NULL)
11438                 return -ENOMEM;
11439         if (lpfc_enable_npiv) {
11440                 lpfc_vport_transport_template =
11441                         fc_attach_transport(&lpfc_vport_transport_functions);
11442                 if (lpfc_vport_transport_template == NULL) {
11443                         fc_release_transport(lpfc_transport_template);
11444                         return -ENOMEM;
11445                 }
11446         }
11447
11448         /* Initialize in case vector mapping is needed */
11449         lpfc_used_cpu = NULL;
11450         lpfc_present_cpu = 0;
11451         for_each_present_cpu(cpu)
11452                 lpfc_present_cpu++;
11453
11454         error = pci_register_driver(&lpfc_driver);
11455         if (error) {
11456                 fc_release_transport(lpfc_transport_template);
11457                 if (lpfc_enable_npiv)
11458                         fc_release_transport(lpfc_vport_transport_template);
11459         }
11460
11461         return error;
11462 }
11463
11464 /**
11465  * lpfc_exit - lpfc module removal routine
11466  *
11467  * This routine is invoked when the lpfc module is removed from the kernel.
11468  * The special kernel macro module_exit() is used to indicate the role of
11469  * this routine to the kernel as lpfc module exit point.
11470  */
11471 static void __exit
11472 lpfc_exit(void)
11473 {
11474         misc_deregister(&lpfc_mgmt_dev);
11475         pci_unregister_driver(&lpfc_driver);
11476         fc_release_transport(lpfc_transport_template);
11477         if (lpfc_enable_npiv)
11478                 fc_release_transport(lpfc_vport_transport_template);
11479         if (_dump_buf_data) {
11480                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11481                                 "_dump_buf_data at 0x%p\n",
11482                                 (1L << _dump_buf_data_order), _dump_buf_data);
11483                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11484         }
11485
11486         if (_dump_buf_dif) {
11487                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11488                                 "_dump_buf_dif at 0x%p\n",
11489                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11490                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11491         }
11492         kfree(lpfc_used_cpu);
11493         idr_destroy(&lpfc_hba_index);
11494 }
11495
11496 module_init(lpfc_init);
11497 module_exit(lpfc_exit);
11498 MODULE_LICENSE("GPL");
11499 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11500 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11501 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);