drivers/scsi/bfa/bfad.c

   1 /*
   2  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
   3  * Copyright (c) 2014- QLogic Corporation.
   4  * All rights reserved
   5  * www.qlogic.com
   6  *
   7  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License (GPL) Version 2 as
  11  * published by the Free Software Foundation
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  */
  18
  19 /*
  20  *  bfad.c Linux driver PCI interface module.
  21  */
  22 #include <linux/module.h>
  23 #include <linux/kthread.h>
  24 #include <linux/errno.h>
  25 #include <linux/sched.h>
  26 #include <linux/init.h>
  27 #include <linux/fs.h>
  28 #include <linux/pci.h>
  29 #include <linux/firmware.h>
  30 #include <linux/uaccess.h>
  31 #include <asm/fcntl.h>
  32
  33 #include "bfad_drv.h"
  34 #include "bfad_im.h"
  35 #include "bfa_fcs.h"
  36 #include "bfa_defs.h"
  37 #include "bfa.h"
  38
  39 BFA_TRC_FILE(LDRV, BFAD);
  40 DEFINE_MUTEX(bfad_mutex);
  41 LIST_HEAD(bfad_list);
  42
  43 static int      bfad_inst;
  44 static int      num_sgpgs_parm;
  45 int             supported_fc4s;
  46 char            *host_name, *os_name, *os_patch;
  47 int             num_rports, num_ios, num_tms;
  48 int             num_fcxps, num_ufbufs;
  49 int             reqq_size, rspq_size, num_sgpgs;
  50 int             rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
  51 int             bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
  52 int             bfa_io_max_sge = BFAD_IO_MAX_SGE;
  53 int             bfa_log_level = 3; /* WARNING log level */
  54 int             ioc_auto_recover = BFA_TRUE;
  55 int             bfa_linkup_delay = -1;
  56 int             fdmi_enable = BFA_TRUE;
  57 int             pcie_max_read_reqsz;
  58 int             bfa_debugfs_enable = 1;
  59 int             msix_disable_cb = 0, msix_disable_ct = 0;
  60 int             max_xfer_size = BFAD_MAX_SECTORS >> 1;
  61 int             max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
  62
  63 /* Firmware releated */
  64 u32     bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
  65 u32     *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
  66
  67 #define BFAD_FW_FILE_CB         "cbfw-3.2.5.1.bin"
  68 #define BFAD_FW_FILE_CT         "ctfw-3.2.5.1.bin"
  69 #define BFAD_FW_FILE_CT2        "ct2fw-3.2.5.1.bin"
  70
  71 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
  72 static void bfad_free_fwimg(void);
  73 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  74                 u32 *bfi_image_size, char *fw_name);
  75
  76 static const char *msix_name_ct[] = {
  77         "ctrl",
  78         "cpe0", "cpe1", "cpe2", "cpe3",
  79         "rme0", "rme1", "rme2", "rme3" };
  80
  81 static const char *msix_name_cb[] = {
  82         "cpe0", "cpe1", "cpe2", "cpe3",
  83         "rme0", "rme1", "rme2", "rme3",
  84         "eemc", "elpu0", "elpu1", "epss", "mlpu" };
  85
  86 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
  87 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
  88 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
  89
  90 module_param(os_name, charp, S_IRUGO | S_IWUSR);
  91 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
  92 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
  93 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
  94 module_param(host_name, charp, S_IRUGO | S_IWUSR);
  95 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
  96 module_param(num_rports, int, S_IRUGO | S_IWUSR);
  97 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
  98                                 "(physical/logical), default=1024");
  99 module_param(num_ios, int, S_IRUGO | S_IWUSR);
 100 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
 101 module_param(num_tms, int, S_IRUGO | S_IWUSR);
 102 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
 103 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
 104 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
 105 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
 106 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
 107                                 "buffers, default=64");
 108 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
 109 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
 110                                 "default=256");
 111 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
 112 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
 113                                 "default=64");
 114 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
 115 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
 116 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
 117 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
 118                                         "Range[>0]");
 119 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
 120 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
 121 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
 122 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
 123 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
 124 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
 125                                 "Range[Critical:1|Error:2|Warning:3|Info:4]");
 126 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
 127 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
 128                                 "Range[off:0|on:1]");
 129 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
 130 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
 131                         "boot port. Otherwise 10 secs in RHEL4 & 0 for "
 132                         "[RHEL5, SLES10, ESX40] Range[>0]");
 133 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
 134 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts for QLogic-415/425/815/825 cards, default=0 Range[false:0|true:1]");
 135 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
 136 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts if possible for QLogic-1010/1020/804/1007/902/1741 cards, default=0, Range[false:0|true:1]");
 137 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 138 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
 139                                 "Range[false:0|true:1]");
 140 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
 141 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
 142                 "(use system setting), Range[128|256|512|1024|2048|4096]");
 143 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
 144 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
 145                 " Range[false:0|true:1]");
 146 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
 147 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
 148                 " Range[64k|128k|256k|512k|1024k|2048k]");
 149 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
 150 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
 151
 152 static void
 153 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
 154 static void
 155 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
 156 static void
 157 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
 158 static void
 159 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
 160 static void
 161 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
 162 static void
 163 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
 164 static void
 165 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
 166
 167 /*
 168  * Beginning state for the driver instance, awaiting the pci_probe event
 169  */
 170 static void
 171 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
 172 {
 173         bfa_trc(bfad, event);
 174
 175         switch (event) {
 176         case BFAD_E_CREATE:
 177                 bfa_sm_set_state(bfad, bfad_sm_created);
 178                 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
 179                                                 "%s", "bfad_worker");
 180                 if (IS_ERR(bfad->bfad_tsk)) {
 181                         printk(KERN_INFO "bfad[%d]: Kernel thread "
 182                                 "creation failed!\n", bfad->inst_no);
 183                         bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
 184                 }
 185                 bfa_sm_send_event(bfad, BFAD_E_INIT);
 186                 break;
 187
 188         case BFAD_E_STOP:
 189                 /* Ignore stop; already in uninit */
 190                 break;
 191
 192         default:
 193                 bfa_sm_fault(bfad, event);
 194         }
 195 }
 196
 197 /*
 198  * Driver Instance is created, awaiting event INIT to initialize the bfad
 199  */
 200 static void
 201 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
 202 {
 203         unsigned long flags;
 204         bfa_status_t ret;
 205
 206         bfa_trc(bfad, event);
 207
 208         switch (event) {
 209         case BFAD_E_INIT:
 210                 bfa_sm_set_state(bfad, bfad_sm_initializing);
 211
 212                 init_completion(&bfad->comp);
 213
 214                 /* Enable Interrupt and wait bfa_init completion */
 215                 if (bfad_setup_intr(bfad)) {
 216                         printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
 217                                         bfad->inst_no);
 218                         bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 219                         break;
 220                 }
 221
 222                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 223                 bfa_iocfc_init(&bfad->bfa);
 224                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 225
 226                 /* Set up interrupt handler for each vectors */
 227                 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
 228                         bfad_install_msix_handler(bfad)) {
 229                         printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
 230                                 __func__, bfad->inst_no);
 231                 }
 232
 233                 bfad_init_timer(bfad);
 234
 235                 wait_for_completion(&bfad->comp);
 236
 237                 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
 238                         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
 239                 } else {
 240                         printk(KERN_WARNING
 241                                 "bfa %s: bfa init failed\n",
 242                                 bfad->pci_name);
 243                         spin_lock_irqsave(&bfad->bfad_lock, flags);
 244                         bfa_fcs_init(&bfad->bfa_fcs);
 245                         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 246
 247                         ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
 248                         if (ret != BFA_STATUS_OK) {
 249                                 init_completion(&bfad->comp);
 250
 251                                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 252                                 bfad->pport.flags |= BFAD_PORT_DELETE;
 253                                 bfa_fcs_exit(&bfad->bfa_fcs);
 254                                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 255
 256                                 wait_for_completion(&bfad->comp);
 257
 258                                 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 259                                 break;
 260                         }
 261                         bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
 262                         bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED);
 263                 }
 264
 265                 break;
 266
 267         case BFAD_E_KTHREAD_CREATE_FAILED:
 268                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 269                 break;
 270
 271         default:
 272                 bfa_sm_fault(bfad, event);
 273         }
 274 }
 275
 276 static void
 277 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
 278 {
 279         int     retval;
 280         unsigned long   flags;
 281
 282         bfa_trc(bfad, event);
 283
 284         switch (event) {
 285         case BFAD_E_INIT_SUCCESS:
 286                 kthread_stop(bfad->bfad_tsk);
 287                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 288                 bfad->bfad_tsk = NULL;
 289                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 290
 291                 retval = bfad_start_ops(bfad);
 292                 if (retval != BFA_STATUS_OK) {
 293                         bfa_sm_set_state(bfad, bfad_sm_failed);
 294                         break;
 295                 }
 296                 bfa_sm_set_state(bfad, bfad_sm_operational);
 297                 break;
 298
 299         case BFAD_E_INIT_FAILED:
 300                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 301                 kthread_stop(bfad->bfad_tsk);
 302                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 303                 bfad->bfad_tsk = NULL;
 304                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 305                 break;
 306
 307         case BFAD_E_HAL_INIT_FAILED:
 308                 bfa_sm_set_state(bfad, bfad_sm_failed);
 309                 break;
 310         default:
 311                 bfa_sm_fault(bfad, event);
 312         }
 313 }
 314
 315 static void
 316 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
 317 {
 318         int     retval;
 319
 320         bfa_trc(bfad, event);
 321
 322         switch (event) {
 323         case BFAD_E_INIT_SUCCESS:
 324                 retval = bfad_start_ops(bfad);
 325                 if (retval != BFA_STATUS_OK)
 326                         break;
 327                 bfa_sm_set_state(bfad, bfad_sm_operational);
 328                 break;
 329
 330         case BFAD_E_STOP:
 331                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 332                 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 333                 break;
 334
 335         case BFAD_E_EXIT_COMP:
 336                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 337                 bfad_remove_intr(bfad);
 338                 del_timer_sync(&bfad->hal_tmo);
 339                 break;
 340
 341         default:
 342                 bfa_sm_fault(bfad, event);
 343         }
 344 }
 345
 346 static void
 347 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
 348 {
 349         bfa_trc(bfad, event);
 350
 351         switch (event) {
 352         case BFAD_E_STOP:
 353                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 354                 bfad_fcs_stop(bfad);
 355                 break;
 356
 357         default:
 358                 bfa_sm_fault(bfad, event);
 359         }
 360 }
 361
 362 static void
 363 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
 364 {
 365         bfa_trc(bfad, event);
 366
 367         switch (event) {
 368         case BFAD_E_FCS_EXIT_COMP:
 369                 bfa_sm_set_state(bfad, bfad_sm_stopping);
 370                 bfad_stop(bfad);
 371                 break;
 372
 373         default:
 374                 bfa_sm_fault(bfad, event);
 375         }
 376 }
 377
 378 static void
 379 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
 380 {
 381         bfa_trc(bfad, event);
 382
 383         switch (event) {
 384         case BFAD_E_EXIT_COMP:
 385                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 386                 bfad_remove_intr(bfad);
 387                 del_timer_sync(&bfad->hal_tmo);
 388                 bfad_im_probe_undo(bfad);
 389                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 390                 bfad_uncfg_pport(bfad);
 391                 break;
 392
 393         default:
 394                 bfa_sm_fault(bfad, event);
 395                 break;
 396         }
 397 }
 398
 399 /*
 400  *  BFA callbacks
 401  */
 402 void
 403 bfad_hcb_comp(void *arg, bfa_status_t status)
 404 {
 405         struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
 406
 407         fcomp->status = status;
 408         complete(&fcomp->comp);
 409 }
 410
 411 /*
 412  * bfa_init callback
 413  */
 414 void
 415 bfa_cb_init(void *drv, bfa_status_t init_status)
 416 {
 417         struct bfad_s         *bfad = drv;
 418
 419         if (init_status == BFA_STATUS_OK) {
 420                 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
 421
 422                 /*
 423                  * If BFAD_HAL_INIT_FAIL flag is set:
 424                  * Wake up the kernel thread to start
 425                  * the bfad operations after HAL init done
 426                  */
 427                 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
 428                         bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
 429                         wake_up_process(bfad->bfad_tsk);
 430                 }
 431         }
 432
 433         complete(&bfad->comp);
 434 }
 435
 436 /*
 437  *  BFA_FCS callbacks
 438  */
 439 struct bfad_port_s *
 440 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
 441                  enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
 442                  struct bfad_vport_s *vp_drv)
 443 {
 444         bfa_status_t    rc;
 445         struct bfad_port_s    *port_drv;
 446
 447         if (!vp_drv && !vf_drv) {
 448                 port_drv = &bfad->pport;
 449                 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
 450         } else if (!vp_drv && vf_drv) {
 451                 port_drv = &vf_drv->base_port;
 452                 port_drv->pvb_type = BFAD_PORT_VF_BASE;
 453         } else if (vp_drv && !vf_drv) {
 454                 port_drv = &vp_drv->drv_port;
 455                 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
 456         } else {
 457                 port_drv = &vp_drv->drv_port;
 458                 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
 459         }
 460
 461         port_drv->fcs_port = port;
 462         port_drv->roles = roles;
 463
 464         if (roles & BFA_LPORT_ROLE_FCP_IM) {
 465                 rc = bfad_im_port_new(bfad, port_drv);
 466                 if (rc != BFA_STATUS_OK) {
 467                         bfad_im_port_delete(bfad, port_drv);
 468                         port_drv = NULL;
 469                 }
 470         }
 471
 472         return port_drv;
 473 }
 474
 475 /*
 476  * FCS RPORT alloc callback, after successful PLOGI by FCS
 477  */
 478 bfa_status_t
 479 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
 480                     struct bfad_rport_s **rport_drv)
 481 {
 482         bfa_status_t    rc = BFA_STATUS_OK;
 483
 484         *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
 485         if (*rport_drv == NULL) {
 486                 rc = BFA_STATUS_ENOMEM;
 487                 goto ext;
 488         }
 489
 490         *rport = &(*rport_drv)->fcs_rport;
 491
 492 ext:
 493         return rc;
 494 }
 495
 496 /*
 497  * FCS PBC VPORT Create
 498  */
 499 void
 500 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
 501 {
 502
 503         struct bfa_lport_cfg_s port_cfg = {0};
 504         struct bfad_vport_s   *vport;
 505         int rc;
 506
 507         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC);
 508         if (!vport) {
 509                 bfa_trc(bfad, 0);
 510                 return;
 511         }
 512
 513         vport->drv_port.bfad = bfad;
 514         port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
 515         port_cfg.pwwn = pbc_vport.vp_pwwn;
 516         port_cfg.nwwn = pbc_vport.vp_nwwn;
 517         port_cfg.preboot_vp  = BFA_TRUE;
 518
 519         rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
 520                                   &port_cfg, vport);
 521
 522         if (rc != BFA_STATUS_OK) {
 523                 bfa_trc(bfad, 0);
 524                 return;
 525         }
 526
 527         list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
 528 }
 529
 530 void
 531 bfad_hal_mem_release(struct bfad_s *bfad)
 532 {
 533         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 534         struct bfa_mem_dma_s *dma_info, *dma_elem;
 535         struct bfa_mem_kva_s *kva_info, *kva_elem;
 536         struct list_head *dm_qe, *km_qe;
 537
 538         dma_info = &hal_meminfo->dma_info;
 539         kva_info = &hal_meminfo->kva_info;
 540
 541         /* Iterate through the KVA meminfo queue */
 542         list_for_each(km_qe, &kva_info->qe) {
 543                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 544                 vfree(kva_elem->kva);
 545         }
 546
 547         /* Iterate through the DMA meminfo queue */
 548         list_for_each(dm_qe, &dma_info->qe) {
 549                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 550                 dma_free_coherent(&bfad->pcidev->dev,
 551                                 dma_elem->mem_len, dma_elem->kva,
 552                                 (dma_addr_t) dma_elem->dma);
 553         }
 554
 555         memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
 556 }
 557
 558 void
 559 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
 560 {
 561         if (num_rports > 0)
 562                 bfa_cfg->fwcfg.num_rports = num_rports;
 563         if (num_ios > 0)
 564                 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
 565         if (num_tms > 0)
 566                 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
 567         if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
 568                 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
 569         if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
 570                 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
 571         if (reqq_size > 0)
 572                 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
 573         if (rspq_size > 0)
 574                 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
 575         if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
 576                 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
 577
 578         /*
 579          * populate the hal values back to the driver for sysfs use.
 580          * otherwise, the default values will be shown as 0 in sysfs
 581          */
 582         num_rports = bfa_cfg->fwcfg.num_rports;
 583         num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
 584         num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
 585         num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
 586         num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
 587         reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
 588         rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
 589         num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
 590 }
 591
 592 bfa_status_t
 593 bfad_hal_mem_alloc(struct bfad_s *bfad)
 594 {
 595         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 596         struct bfa_mem_dma_s *dma_info, *dma_elem;
 597         struct bfa_mem_kva_s *kva_info, *kva_elem;
 598         struct list_head *dm_qe, *km_qe;
 599         bfa_status_t    rc = BFA_STATUS_OK;
 600         dma_addr_t      phys_addr;
 601
 602         bfa_cfg_get_default(&bfad->ioc_cfg);
 603         bfad_update_hal_cfg(&bfad->ioc_cfg);
 604         bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
 605         bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
 606
 607         dma_info = &hal_meminfo->dma_info;
 608         kva_info = &hal_meminfo->kva_info;
 609
 610         /* Iterate through the KVA meminfo queue */
 611         list_for_each(km_qe, &kva_info->qe) {
 612                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 613                 kva_elem->kva = vmalloc(kva_elem->mem_len);
 614                 if (kva_elem->kva == NULL) {
 615                         bfad_hal_mem_release(bfad);
 616                         rc = BFA_STATUS_ENOMEM;
 617                         goto ext;
 618                 }
 619                 memset(kva_elem->kva, 0, kva_elem->mem_len);
 620         }
 621
 622         /* Iterate through the DMA meminfo queue */
 623         list_for_each(dm_qe, &dma_info->qe) {
 624                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 625                 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
 626                                                 dma_elem->mem_len,
 627                                                 &phys_addr, GFP_KERNEL);
 628                 if (dma_elem->kva == NULL) {
 629                         bfad_hal_mem_release(bfad);
 630                         rc = BFA_STATUS_ENOMEM;
 631                         goto ext;
 632                 }
 633                 dma_elem->dma = phys_addr;
 634                 memset(dma_elem->kva, 0, dma_elem->mem_len);
 635         }
 636 ext:
 637         return rc;
 638 }
 639
 640 /*
 641  * Create a vport under a vf.
 642  */
 643 bfa_status_t
 644 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
 645                   struct bfa_lport_cfg_s *port_cfg, struct device *dev)
 646 {
 647         struct bfad_vport_s   *vport;
 648         int             rc = BFA_STATUS_OK;
 649         unsigned long   flags;
 650         struct completion fcomp;
 651
 652         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
 653         if (!vport) {
 654                 rc = BFA_STATUS_ENOMEM;
 655                 goto ext;
 656         }
 657
 658         vport->drv_port.bfad = bfad;
 659         spin_lock_irqsave(&bfad->bfad_lock, flags);
 660         rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
 661                                   port_cfg, vport);
 662         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 663
 664         if (rc != BFA_STATUS_OK)
 665                 goto ext_free_vport;
 666
 667         if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
 668                 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
 669                                                         dev);
 670                 if (rc != BFA_STATUS_OK)
 671                         goto ext_free_fcs_vport;
 672         }
 673
 674         spin_lock_irqsave(&bfad->bfad_lock, flags);
 675         bfa_fcs_vport_start(&vport->fcs_vport);
 676         list_add_tail(&vport->list_entry, &bfad->vport_list);
 677         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 678
 679         return BFA_STATUS_OK;
 680
 681 ext_free_fcs_vport:
 682         spin_lock_irqsave(&bfad->bfad_lock, flags);
 683         vport->comp_del = &fcomp;
 684         init_completion(vport->comp_del);
 685         bfa_fcs_vport_delete(&vport->fcs_vport);
 686         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 687         wait_for_completion(vport->comp_del);
 688 ext_free_vport:
 689         kfree(vport);
 690 ext:
 691         return rc;
 692 }
 693
 694 void
 695 bfad_bfa_tmo(unsigned long data)
 696 {
 697         struct bfad_s         *bfad = (struct bfad_s *) data;
 698         unsigned long   flags;
 699         struct list_head               doneq;
 700
 701         spin_lock_irqsave(&bfad->bfad_lock, flags);
 702
 703         bfa_timer_beat(&bfad->bfa.timer_mod);
 704
 705         bfa_comp_deq(&bfad->bfa, &doneq);
 706         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 707
 708         if (!list_empty(&doneq)) {
 709                 bfa_comp_process(&bfad->bfa, &doneq);
 710                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 711                 bfa_comp_free(&bfad->bfa, &doneq);
 712                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 713         }
 714
 715         mod_timer(&bfad->hal_tmo,
 716                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 717 }
 718
 719 void
 720 bfad_init_timer(struct bfad_s *bfad)
 721 {
 722         init_timer(&bfad->hal_tmo);
 723         bfad->hal_tmo.function = bfad_bfa_tmo;
 724         bfad->hal_tmo.data = (unsigned long)bfad;
 725
 726         mod_timer(&bfad->hal_tmo,
 727                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 728 }
 729
 730 int
 731 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 732 {
 733         int             rc = -ENODEV;
 734
 735         if (pci_enable_device(pdev)) {
 736                 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
 737                 goto out;
 738         }
 739
 740         if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
 741                 goto out_disable_device;
 742
 743         pci_set_master(pdev);
 744
 745
 746         if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
 747             (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
 748                 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
 749                    (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
 750                         printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev);
 751                         goto out_release_region;
 752                 }
 753         }
 754
 755         /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
 756         pci_enable_pcie_error_reporting(pdev);
 757
 758         bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 759         bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 760
 761         if (bfad->pci_bar0_kva == NULL) {
 762                 printk(KERN_ERR "Fail to map bar0\n");
 763                 goto out_release_region;
 764         }
 765
 766         bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
 767         bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
 768         bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
 769         bfad->hal_pcidev.device_id = pdev->device;
 770         bfad->hal_pcidev.ssid = pdev->subsystem_device;
 771         bfad->pci_name = pci_name(pdev);
 772
 773         bfad->pci_attr.vendor_id = pdev->vendor;
 774         bfad->pci_attr.device_id = pdev->device;
 775         bfad->pci_attr.ssid = pdev->subsystem_device;
 776         bfad->pci_attr.ssvid = pdev->subsystem_vendor;
 777         bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
 778
 779         bfad->pcidev = pdev;
 780
 781         /* Adjust PCIe Maximum Read Request Size */
 782         if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
 783                 if (pcie_max_read_reqsz >= 128 &&
 784                     pcie_max_read_reqsz <= 4096 &&
 785                     is_power_of_2(pcie_max_read_reqsz)) {
 786                         int max_rq = pcie_get_readrq(pdev);
 787                         printk(KERN_WARNING "BFA[%s]: "
 788                                 "pcie_max_read_request_size is %d, "
 789                                 "reset to %d\n", bfad->pci_name, max_rq,
 790                                 pcie_max_read_reqsz);
 791                         pcie_set_readrq(pdev, pcie_max_read_reqsz);
 792                 } else {
 793                         printk(KERN_WARNING "BFA[%s]: invalid "
 794                                "pcie_max_read_request_size %d ignored\n",
 795                                bfad->pci_name, pcie_max_read_reqsz);
 796                 }
 797         }
 798
 799         pci_save_state(pdev);
 800
 801         return 0;
 802
 803 out_release_region:
 804         pci_release_regions(pdev);
 805 out_disable_device:
 806         pci_disable_device(pdev);
 807 out:
 808         return rc;
 809 }
 810
 811 void
 812 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 813 {
 814         pci_iounmap(pdev, bfad->pci_bar0_kva);
 815         pci_iounmap(pdev, bfad->pci_bar2_kva);
 816         pci_release_regions(pdev);
 817         /* Disable PCIE Advanced Error Recovery (AER) */
 818         pci_disable_pcie_error_reporting(pdev);
 819         pci_disable_device(pdev);
 820 }
 821
 822 bfa_status_t
 823 bfad_drv_init(struct bfad_s *bfad)
 824 {
 825         bfa_status_t    rc;
 826         unsigned long   flags;
 827
 828         bfad->cfg_data.rport_del_timeout = rport_del_timeout;
 829         bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
 830         bfad->cfg_data.io_max_sge = bfa_io_max_sge;
 831         bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
 832
 833         rc = bfad_hal_mem_alloc(bfad);
 834         if (rc != BFA_STATUS_OK) {
 835                 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
 836                        bfad->inst_no);
 837                 printk(KERN_WARNING
 838                         "Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n");
 839                 return BFA_STATUS_FAILED;
 840         }
 841
 842         bfad->bfa.trcmod = bfad->trcmod;
 843         bfad->bfa.plog = &bfad->plog_buf;
 844         bfa_plog_init(&bfad->plog_buf);
 845         bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
 846                      0, "Driver Attach");
 847
 848         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
 849                    &bfad->hal_pcidev);
 850
 851         /* FCS INIT */
 852         spin_lock_irqsave(&bfad->bfad_lock, flags);
 853         bfad->bfa_fcs.trcmod = bfad->trcmod;
 854         bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
 855         bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
 856         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 857
 858         bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
 859
 860         return BFA_STATUS_OK;
 861 }
 862
 863 void
 864 bfad_drv_uninit(struct bfad_s *bfad)
 865 {
 866         unsigned long   flags;
 867
 868         spin_lock_irqsave(&bfad->bfad_lock, flags);
 869         init_completion(&bfad->comp);
 870         bfa_iocfc_stop(&bfad->bfa);
 871         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 872         wait_for_completion(&bfad->comp);
 873
 874         del_timer_sync(&bfad->hal_tmo);
 875         bfa_isr_disable(&bfad->bfa);
 876         bfa_detach(&bfad->bfa);
 877         bfad_remove_intr(bfad);
 878         bfad_hal_mem_release(bfad);
 879
 880         bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
 881 }
 882
 883 void
 884 bfad_drv_start(struct bfad_s *bfad)
 885 {
 886         unsigned long   flags;
 887
 888         spin_lock_irqsave(&bfad->bfad_lock, flags);
 889         bfa_iocfc_start(&bfad->bfa);
 890         bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
 891         bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
 892         bfad->bfad_flags |= BFAD_HAL_START_DONE;
 893         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 894
 895         if (bfad->im)
 896                 flush_workqueue(bfad->im->drv_workq);
 897 }
 898
 899 void
 900 bfad_fcs_stop(struct bfad_s *bfad)
 901 {
 902         unsigned long   flags;
 903
 904         spin_lock_irqsave(&bfad->bfad_lock, flags);
 905         init_completion(&bfad->comp);
 906         bfad->pport.flags |= BFAD_PORT_DELETE;
 907         bfa_fcs_exit(&bfad->bfa_fcs);
 908         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 909         wait_for_completion(&bfad->comp);
 910
 911         bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 912 }
 913
 914 void
 915 bfad_stop(struct bfad_s *bfad)
 916 {
 917         unsigned long   flags;
 918
 919         spin_lock_irqsave(&bfad->bfad_lock, flags);
 920         init_completion(&bfad->comp);
 921         bfa_iocfc_stop(&bfad->bfa);
 922         bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
 923         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 924         wait_for_completion(&bfad->comp);
 925
 926         bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
 927 }
 928
 929 bfa_status_t
 930 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
 931 {
 932         int             rc = BFA_STATUS_OK;
 933
 934         /* Allocate scsi_host for the physical port */
 935         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 936             (role & BFA_LPORT_ROLE_FCP_IM)) {
 937                 if (bfad->pport.im_port == NULL) {
 938                         rc = BFA_STATUS_FAILED;
 939                         goto out;
 940                 }
 941
 942                 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
 943                                                 &bfad->pcidev->dev);
 944                 if (rc != BFA_STATUS_OK)
 945                         goto out;
 946
 947                 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
 948         }
 949
 950         bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
 951
 952 out:
 953         return rc;
 954 }
 955
 956 void
 957 bfad_uncfg_pport(struct bfad_s *bfad)
 958 {
 959         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 960             (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
 961                 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
 962                 bfad_im_port_clean(bfad->pport.im_port);
 963                 kfree(bfad->pport.im_port);
 964                 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
 965         }
 966
 967         bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
 968 }
 969
 970 bfa_status_t
 971 bfad_start_ops(struct bfad_s *bfad) {
 972
 973         int     retval;
 974         unsigned long   flags;
 975         struct bfad_vport_s *vport, *vport_new;
 976         struct bfa_fcs_driver_info_s driver_info;
 977
 978         /* Limit min/max. xfer size to [64k-32MB] */
 979         if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
 980                 max_xfer_size = BFAD_MIN_SECTORS >> 1;
 981         if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
 982                 max_xfer_size = BFAD_MAX_SECTORS >> 1;
 983
 984         /* Fill the driver_info info to fcs*/
 985         memset(&driver_info, 0, sizeof(driver_info));
 986         strncpy(driver_info.version, BFAD_DRIVER_VERSION,
 987                 sizeof(driver_info.version) - 1);
 988         if (host_name)
 989                 strncpy(driver_info.host_machine_name, host_name,
 990                         sizeof(driver_info.host_machine_name) - 1);
 991         if (os_name)
 992                 strncpy(driver_info.host_os_name, os_name,
 993                         sizeof(driver_info.host_os_name) - 1);
 994         if (os_patch)
 995                 strncpy(driver_info.host_os_patch, os_patch,
 996                         sizeof(driver_info.host_os_patch) - 1);
 997
 998         strncpy(driver_info.os_device_name, bfad->pci_name,
 999                 sizeof(driver_info.os_device_name) - 1);
1000
1001         /* FCS driver info init */
1002         spin_lock_irqsave(&bfad->bfad_lock, flags);
1003         bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1004
1005         if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
1006                 bfa_fcs_update_cfg(&bfad->bfa_fcs);
1007         else
1008                 bfa_fcs_init(&bfad->bfa_fcs);
1009
1010         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1011
1012         if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
1013                 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
1014                 if (retval != BFA_STATUS_OK)
1015                         return BFA_STATUS_FAILED;
1016         }
1017
1018         /* Setup fc host fixed attribute if the lk supports */
1019         bfad_fc_host_init(bfad->pport.im_port);
1020
1021         /* BFAD level FC4 IM specific resource allocation */
1022         retval = bfad_im_probe(bfad);
1023         if (retval != BFA_STATUS_OK) {
1024                 printk(KERN_WARNING "bfad_im_probe failed\n");
1025                 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1026                         bfa_sm_set_state(bfad, bfad_sm_failed);
1027                 return BFA_STATUS_FAILED;
1028         } else
1029                 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1030
1031         bfad_drv_start(bfad);
1032
1033         /* Complete pbc vport create */
1034         list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1035                                 list_entry) {
1036                 struct fc_vport_identifiers vid;
1037                 struct fc_vport *fc_vport;
1038                 char pwwn_buf[BFA_STRING_32];
1039
1040                 memset(&vid, 0, sizeof(vid));
1041                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1042                 vid.vport_type = FC_PORTTYPE_NPIV;
1043                 vid.disable = false;
1044                 vid.node_name = wwn_to_u64((u8 *)
1045                                 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1046                 vid.port_name = wwn_to_u64((u8 *)
1047                                 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1048                 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1049                 if (!fc_vport) {
1050                         wwn2str(pwwn_buf, vid.port_name);
1051                         printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1052                                 " %s\n", bfad->inst_no, pwwn_buf);
1053                 }
1054                 list_del(&vport->list_entry);
1055                 kfree(vport);
1056         }
1057
1058         /*
1059          * If bfa_linkup_delay is set to -1 default; try to retrive the
1060          * value using the bfad_get_linkup_delay(); else use the
1061          * passed in module param value as the bfa_linkup_delay.
1062          */
1063         if (bfa_linkup_delay < 0) {
1064                 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1065                 bfad_rport_online_wait(bfad);
1066                 bfa_linkup_delay = -1;
1067         } else
1068                 bfad_rport_online_wait(bfad);
1069
1070         BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1071
1072         return BFA_STATUS_OK;
1073 }
1074
1075 int
1076 bfad_worker(void *ptr)
1077 {
1078         struct bfad_s *bfad = ptr;
1079         unsigned long flags;
1080
1081         if (kthread_should_stop())
1082                 return 0;
1083
1084         /* Send event BFAD_E_INIT_SUCCESS */
1085         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1086
1087         spin_lock_irqsave(&bfad->bfad_lock, flags);
1088         bfad->bfad_tsk = NULL;
1089         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1090
1091         return 0;
1092 }
1093
1094 /*
1095  *  BFA driver interrupt functions
1096  */
1097 irqreturn_t
1098 bfad_intx(int irq, void *dev_id)
1099 {
1100         struct bfad_s   *bfad = dev_id;
1101         struct list_head        doneq;
1102         unsigned long   flags;
1103         bfa_boolean_t rc;
1104
1105         spin_lock_irqsave(&bfad->bfad_lock, flags);
1106         rc = bfa_intx(&bfad->bfa);
1107         if (!rc) {
1108                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1109                 return IRQ_NONE;
1110         }
1111
1112         bfa_comp_deq(&bfad->bfa, &doneq);
1113         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1114
1115         if (!list_empty(&doneq)) {
1116                 bfa_comp_process(&bfad->bfa, &doneq);
1117
1118                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1119                 bfa_comp_free(&bfad->bfa, &doneq);
1120                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1121         }
1122
1123         return IRQ_HANDLED;
1124
1125 }
1126
1127 static irqreturn_t
1128 bfad_msix(int irq, void *dev_id)
1129 {
1130         struct bfad_msix_s *vec = dev_id;
1131         struct bfad_s *bfad = vec->bfad;
1132         struct list_head doneq;
1133         unsigned long   flags;
1134
1135         spin_lock_irqsave(&bfad->bfad_lock, flags);
1136
1137         bfa_msix(&bfad->bfa, vec->msix.entry);
1138         bfa_comp_deq(&bfad->bfa, &doneq);
1139         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1140
1141         if (!list_empty(&doneq)) {
1142                 bfa_comp_process(&bfad->bfa, &doneq);
1143
1144                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1145                 bfa_comp_free(&bfad->bfa, &doneq);
1146                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1147         }
1148
1149         return IRQ_HANDLED;
1150 }
1151
1152 /*
1153  * Initialize the MSIX entry table.
1154  */
1155 static void
1156 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1157                          int mask, int max_bit)
1158 {
1159         int     i;
1160         int     match = 0x00000001;
1161
1162         for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1163                 if (mask & match) {
1164                         bfad->msix_tab[bfad->nvec].msix.entry = i;
1165                         bfad->msix_tab[bfad->nvec].bfad = bfad;
1166                         msix_entries[bfad->nvec].entry = i;
1167                         bfad->nvec++;
1168                 }
1169
1170                 match <<= 1;
1171         }
1172
1173 }
1174
1175 int
1176 bfad_install_msix_handler(struct bfad_s *bfad)
1177 {
1178         int i, error = 0;
1179
1180         for (i = 0; i < bfad->nvec; i++) {
1181                 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1182                                 bfad->pci_name,
1183                                 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1184                                 msix_name_cb[i] : msix_name_ct[i]));
1185
1186                 error = request_irq(bfad->msix_tab[i].msix.vector,
1187                                     (irq_handler_t) bfad_msix, 0,
1188                                     bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1189                 bfa_trc(bfad, i);
1190                 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1191                 if (error) {
1192                         int     j;
1193
1194                         for (j = 0; j < i; j++)
1195                                 free_irq(bfad->msix_tab[j].msix.vector,
1196                                                 &bfad->msix_tab[j]);
1197
1198                         bfad->bfad_flags &= ~BFAD_MSIX_ON;
1199                         pci_disable_msix(bfad->pcidev);
1200
1201                         return 1;
1202                 }
1203         }
1204
1205         return 0;
1206 }
1207
1208 /*
1209  * Setup MSIX based interrupt.
1210  */
1211 int
1212 bfad_setup_intr(struct bfad_s *bfad)
1213 {
1214         int error;
1215         u32 mask = 0, i, num_bit = 0, max_bit = 0;
1216         struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1217         struct pci_dev *pdev = bfad->pcidev;
1218         u16     reg;
1219
1220         /* Call BFA to get the msix map for this PCI function.  */
1221         bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1222
1223         /* Set up the msix entry table */
1224         bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1225
1226         if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1227            (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1228
1229                 error = pci_enable_msix_exact(bfad->pcidev,
1230                                               msix_entries, bfad->nvec);
1231                 /* In CT1 & CT2, try to allocate just one vector */
1232                 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
1233                         printk(KERN_WARNING "bfa %s: trying one msix "
1234                                "vector failed to allocate %d[%d]\n",
1235                                bfad->pci_name, bfad->nvec, error);
1236                         bfad->nvec = 1;
1237                         error = pci_enable_msix_exact(bfad->pcidev,
1238                                                       msix_entries, 1);
1239                 }
1240
1241                 if (error) {
1242                         printk(KERN_WARNING "bfad%d: "
1243                                "pci_enable_msix_exact failed (%d), "
1244                                "use line based.\n",
1245                                 bfad->inst_no, error);
1246                         goto line_based;
1247                 }
1248
1249                 /* Disable INTX in MSI-X mode */
1250                 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1251
1252                 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1253                         pci_write_config_word(pdev, PCI_COMMAND,
1254                                 reg | PCI_COMMAND_INTX_DISABLE);
1255
1256                 /* Save the vectors */
1257                 for (i = 0; i < bfad->nvec; i++) {
1258                         bfa_trc(bfad, msix_entries[i].vector);
1259                         bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1260                 }
1261
1262                 bfa_msix_init(&bfad->bfa, bfad->nvec);
1263
1264                 bfad->bfad_flags |= BFAD_MSIX_ON;
1265
1266                 return 0;
1267         }
1268
1269 line_based:
1270         error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
1271                             BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
1272         if (error)
1273                 return error;
1274
1275         bfad->bfad_flags |= BFAD_INTX_ON;
1276
1277         return 0;
1278 }
1279
1280 void
1281 bfad_remove_intr(struct bfad_s *bfad)
1282 {
1283         int     i;
1284
1285         if (bfad->bfad_flags & BFAD_MSIX_ON) {
1286                 for (i = 0; i < bfad->nvec; i++)
1287                         free_irq(bfad->msix_tab[i].msix.vector,
1288                                         &bfad->msix_tab[i]);
1289
1290                 pci_disable_msix(bfad->pcidev);
1291                 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1292         } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1293                 free_irq(bfad->pcidev->irq, bfad);
1294         }
1295 }
1296
1297 /*
1298  * PCI probe entry.
1299  */
1300 int
1301 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1302 {
1303         struct bfad_s   *bfad;
1304         int             error = -ENODEV, retval, i;
1305
1306         /* For single port cards - only claim function 0 */
1307         if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1308                 (PCI_FUNC(pdev->devfn) != 0))
1309                 return -ENODEV;
1310
1311         bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1312         if (!bfad) {
1313                 error = -ENOMEM;
1314                 goto out;
1315         }
1316
1317         bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1318         if (!bfad->trcmod) {
1319                 printk(KERN_WARNING "Error alloc trace buffer!\n");
1320                 error = -ENOMEM;
1321                 goto out_alloc_trace_failure;
1322         }
1323
1324         /* TRACE INIT */
1325         bfa_trc_init(bfad->trcmod);
1326         bfa_trc(bfad, bfad_inst);
1327
1328         /* AEN INIT */
1329         INIT_LIST_HEAD(&bfad->free_aen_q);
1330         INIT_LIST_HEAD(&bfad->active_aen_q);
1331         for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1332                 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1333
1334         if (!(bfad_load_fwimg(pdev))) {
1335                 kfree(bfad->trcmod);
1336                 goto out_alloc_trace_failure;
1337         }
1338
1339         retval = bfad_pci_init(pdev, bfad);
1340         if (retval) {
1341                 printk(KERN_WARNING "bfad_pci_init failure!\n");
1342                 error = retval;
1343                 goto out_pci_init_failure;
1344         }
1345
1346         mutex_lock(&bfad_mutex);
1347         bfad->inst_no = bfad_inst++;
1348         list_add_tail(&bfad->list_entry, &bfad_list);
1349         mutex_unlock(&bfad_mutex);
1350
1351         /* Initializing the state machine: State set to uninit */
1352         bfa_sm_set_state(bfad, bfad_sm_uninit);
1353
1354         spin_lock_init(&bfad->bfad_lock);
1355         spin_lock_init(&bfad->bfad_aen_spinlock);
1356
1357         pci_set_drvdata(pdev, bfad);
1358
1359         bfad->ref_count = 0;
1360         bfad->pport.bfad = bfad;
1361         INIT_LIST_HEAD(&bfad->pbc_vport_list);
1362         INIT_LIST_HEAD(&bfad->vport_list);
1363
1364         /* Setup the debugfs node for this bfad */
1365         if (bfa_debugfs_enable)
1366                 bfad_debugfs_init(&bfad->pport);
1367
1368         retval = bfad_drv_init(bfad);
1369         if (retval != BFA_STATUS_OK)
1370                 goto out_drv_init_failure;
1371
1372         bfa_sm_send_event(bfad, BFAD_E_CREATE);
1373
1374         if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1375                 goto out_bfad_sm_failure;
1376
1377         return 0;
1378
1379 out_bfad_sm_failure:
1380         bfad_hal_mem_release(bfad);
1381 out_drv_init_failure:
1382         /* Remove the debugfs node for this bfad */
1383         kfree(bfad->regdata);
1384         bfad_debugfs_exit(&bfad->pport);
1385         mutex_lock(&bfad_mutex);
1386         bfad_inst--;
1387         list_del(&bfad->list_entry);
1388         mutex_unlock(&bfad_mutex);
1389         bfad_pci_uninit(pdev, bfad);
1390 out_pci_init_failure:
1391         kfree(bfad->trcmod);
1392 out_alloc_trace_failure:
1393         kfree(bfad);
1394 out:
1395         return error;
1396 }
1397
1398 /*
1399  * PCI remove entry.
1400  */
1401 void
1402 bfad_pci_remove(struct pci_dev *pdev)
1403 {
1404         struct bfad_s         *bfad = pci_get_drvdata(pdev);
1405         unsigned long   flags;
1406
1407         bfa_trc(bfad, bfad->inst_no);
1408
1409         spin_lock_irqsave(&bfad->bfad_lock, flags);
1410         if (bfad->bfad_tsk != NULL) {
1411                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1412                 kthread_stop(bfad->bfad_tsk);
1413         } else {
1414                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1415         }
1416
1417         /* Send Event BFAD_E_STOP */
1418         bfa_sm_send_event(bfad, BFAD_E_STOP);
1419
1420         /* Driver detach and dealloc mem */
1421         spin_lock_irqsave(&bfad->bfad_lock, flags);
1422         bfa_detach(&bfad->bfa);
1423         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1424         bfad_hal_mem_release(bfad);
1425
1426         /* Remove the debugfs node for this bfad */
1427         kfree(bfad->regdata);
1428         bfad_debugfs_exit(&bfad->pport);
1429
1430         /* Cleaning the BFAD instance */
1431         mutex_lock(&bfad_mutex);
1432         bfad_inst--;
1433         list_del(&bfad->list_entry);
1434         mutex_unlock(&bfad_mutex);
1435         bfad_pci_uninit(pdev, bfad);
1436
1437         kfree(bfad->trcmod);
1438         kfree(bfad);
1439 }
1440
1441 /*
1442  * PCI Error Recovery entry, error detected.
1443  */
1444 static pci_ers_result_t
1445 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1446 {
1447         struct bfad_s *bfad = pci_get_drvdata(pdev);
1448         unsigned long   flags;
1449         pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1450
1451         dev_printk(KERN_ERR, &pdev->dev,
1452                    "error detected state: %d - flags: 0x%x\n",
1453                    state, bfad->bfad_flags);
1454
1455         switch (state) {
1456         case pci_channel_io_normal: /* non-fatal error */
1457                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1458                 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1459                 /* Suspend/fail all bfa operations */
1460                 bfa_ioc_suspend(&bfad->bfa.ioc);
1461                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1462                 del_timer_sync(&bfad->hal_tmo);
1463                 ret = PCI_ERS_RESULT_CAN_RECOVER;
1464                 break;
1465         case pci_channel_io_frozen: /* fatal error */
1466                 init_completion(&bfad->comp);
1467                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1468                 bfad->bfad_flags |= BFAD_EEH_BUSY;
1469                 /* Suspend/fail all bfa operations */
1470                 bfa_ioc_suspend(&bfad->bfa.ioc);
1471                 bfa_fcs_stop(&bfad->bfa_fcs);
1472                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1473                 wait_for_completion(&bfad->comp);
1474
1475                 bfad_remove_intr(bfad);
1476                 del_timer_sync(&bfad->hal_tmo);
1477                 pci_disable_device(pdev);
1478                 ret = PCI_ERS_RESULT_NEED_RESET;
1479                 break;
1480         case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1481                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1482                 bfad->bfad_flags |= BFAD_EEH_BUSY |
1483                                     BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1484                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1485
1486                 /* If the error_detected handler is called with the reason
1487                  * pci_channel_io_perm_failure - it will subsequently call
1488                  * pci_remove() entry point to remove the pci device from the
1489                  * system - So defer the cleanup to pci_remove(); cleaning up
1490                  * here causes inconsistent state during pci_remove().
1491                  */
1492                 ret = PCI_ERS_RESULT_DISCONNECT;
1493                 break;
1494         default:
1495                 WARN_ON(1);
1496         }
1497
1498         return ret;
1499 }
1500
1501 int
1502 restart_bfa(struct bfad_s *bfad)
1503 {
1504         unsigned long flags;
1505         struct pci_dev *pdev = bfad->pcidev;
1506
1507         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1508                    &bfad->meminfo, &bfad->hal_pcidev);
1509
1510         /* Enable Interrupt and wait bfa_init completion */
1511         if (bfad_setup_intr(bfad)) {
1512                 dev_printk(KERN_WARNING, &pdev->dev,
1513                            "%s: bfad_setup_intr failed\n", bfad->pci_name);
1514                 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1515                 return -1;
1516         }
1517
1518         init_completion(&bfad->comp);
1519         spin_lock_irqsave(&bfad->bfad_lock, flags);
1520         bfa_iocfc_init(&bfad->bfa);
1521         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1522
1523         /* Set up interrupt handler for each vectors */
1524         if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1525             bfad_install_msix_handler(bfad))
1526                 dev_printk(KERN_WARNING, &pdev->dev,
1527                            "%s: install_msix failed.\n", bfad->pci_name);
1528
1529         bfad_init_timer(bfad);
1530         wait_for_completion(&bfad->comp);
1531         bfad_drv_start(bfad);
1532
1533         return 0;
1534 }
1535
1536 /*
1537  * PCI Error Recovery entry, re-initialize the chip.
1538  */
1539 static pci_ers_result_t
1540 bfad_pci_slot_reset(struct pci_dev *pdev)
1541 {
1542         struct bfad_s *bfad = pci_get_drvdata(pdev);
1543         u8 byte;
1544
1545         dev_printk(KERN_ERR, &pdev->dev,
1546                    "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1547
1548         if (pci_enable_device(pdev)) {
1549                 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1550                            "PCI device after reset.\n");
1551                 return PCI_ERS_RESULT_DISCONNECT;
1552         }
1553
1554         pci_restore_state(pdev);
1555
1556         /*
1557          * Read some byte (e.g. DMA max. payload size which can't
1558          * be 0xff any time) to make sure - we did not hit another PCI error
1559          * in the middle of recovery. If we did, then declare permanent failure.
1560          */
1561         pci_read_config_byte(pdev, 0x68, &byte);
1562         if (byte == 0xff) {
1563                 dev_printk(KERN_ERR, &pdev->dev,
1564                            "slot_reset failed ... got another PCI error !\n");
1565                 goto out_disable_device;
1566         }
1567
1568         pci_save_state(pdev);
1569         pci_set_master(pdev);
1570
1571         if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0)
1572                 if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0)
1573                         goto out_disable_device;
1574
1575         pci_cleanup_aer_uncorrect_error_status(pdev);
1576
1577         if (restart_bfa(bfad) == -1)
1578                 goto out_disable_device;
1579
1580         pci_enable_pcie_error_reporting(pdev);
1581         dev_printk(KERN_WARNING, &pdev->dev,
1582                    "slot_reset completed  flags: 0x%x!\n", bfad->bfad_flags);
1583
1584         return PCI_ERS_RESULT_RECOVERED;
1585
1586 out_disable_device:
1587         pci_disable_device(pdev);
1588         return PCI_ERS_RESULT_DISCONNECT;
1589 }
1590
1591 static pci_ers_result_t
1592 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1593 {
1594         unsigned long   flags;
1595         struct bfad_s *bfad = pci_get_drvdata(pdev);
1596
1597         dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1598
1599         /* Fetch FW diagnostic information */
1600         bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1601
1602         /* Cancel all pending IOs */
1603         spin_lock_irqsave(&bfad->bfad_lock, flags);
1604         init_completion(&bfad->comp);
1605         bfa_fcs_stop(&bfad->bfa_fcs);
1606         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1607         wait_for_completion(&bfad->comp);
1608
1609         bfad_remove_intr(bfad);
1610         del_timer_sync(&bfad->hal_tmo);
1611         pci_disable_device(pdev);
1612
1613         return PCI_ERS_RESULT_NEED_RESET;
1614 }
1615
1616 static void
1617 bfad_pci_resume(struct pci_dev *pdev)
1618 {
1619         unsigned long   flags;
1620         struct bfad_s *bfad = pci_get_drvdata(pdev);
1621
1622         dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1623
1624         /* wait until the link is online */
1625         bfad_rport_online_wait(bfad);
1626
1627         spin_lock_irqsave(&bfad->bfad_lock, flags);
1628         bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1629         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1630 }
1631
1632 struct pci_device_id bfad_id_table[] = {
1633         {
1634                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1635                 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1636                 .subvendor = PCI_ANY_ID,
1637                 .subdevice = PCI_ANY_ID,
1638         },
1639         {
1640                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1641                 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1642                 .subvendor = PCI_ANY_ID,
1643                 .subdevice = PCI_ANY_ID,
1644         },
1645         {
1646                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1647                 .device = BFA_PCI_DEVICE_ID_CT,
1648                 .subvendor = PCI_ANY_ID,
1649                 .subdevice = PCI_ANY_ID,
1650                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1651                 .class_mask = ~0,
1652         },
1653         {
1654                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1655                 .device = BFA_PCI_DEVICE_ID_CT_FC,
1656                 .subvendor = PCI_ANY_ID,
1657                 .subdevice = PCI_ANY_ID,
1658                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1659                 .class_mask = ~0,
1660         },
1661         {
1662                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1663                 .device = BFA_PCI_DEVICE_ID_CT2,
1664                 .subvendor = PCI_ANY_ID,
1665                 .subdevice = PCI_ANY_ID,
1666                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1667                 .class_mask = ~0,
1668         },
1669
1670         {
1671                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1672                 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1673                 .subvendor = PCI_ANY_ID,
1674                 .subdevice = PCI_ANY_ID,
1675                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1676                 .class_mask = ~0,
1677         },
1678         {0, 0},
1679 };
1680
1681 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1682
1683 /*
1684  * PCI error recovery handlers.
1685  */
1686 static struct pci_error_handlers bfad_err_handler = {
1687         .error_detected = bfad_pci_error_detected,
1688         .slot_reset = bfad_pci_slot_reset,
1689         .mmio_enabled = bfad_pci_mmio_enabled,
1690         .resume = bfad_pci_resume,
1691 };
1692
1693 static struct pci_driver bfad_pci_driver = {
1694         .name = BFAD_DRIVER_NAME,
1695         .id_table = bfad_id_table,
1696         .probe = bfad_pci_probe,
1697         .remove = bfad_pci_remove,
1698         .err_handler = &bfad_err_handler,
1699 };
1700
1701 /*
1702  * Driver module init.
1703  */
1704 static int __init
1705 bfad_init(void)
1706 {
1707         int             error = 0;
1708
1709         pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n",
1710                         BFAD_DRIVER_VERSION);
1711
1712         if (num_sgpgs > 0)
1713                 num_sgpgs_parm = num_sgpgs;
1714
1715         error = bfad_im_module_init();
1716         if (error) {
1717                 error = -ENOMEM;
1718                 printk(KERN_WARNING "bfad_im_module_init failure\n");
1719                 goto ext;
1720         }
1721
1722         if (strcmp(FCPI_NAME, " fcpim") == 0)
1723                 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1724
1725         bfa_auto_recover = ioc_auto_recover;
1726         bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1727         bfa_fcs_rport_set_max_logins(max_rport_logins);
1728
1729         error = pci_register_driver(&bfad_pci_driver);
1730         if (error) {
1731                 printk(KERN_WARNING "pci_register_driver failure\n");
1732                 goto ext;
1733         }
1734
1735         return 0;
1736
1737 ext:
1738         bfad_im_module_exit();
1739         return error;
1740 }
1741
1742 /*
1743  * Driver module exit.
1744  */
1745 static void __exit
1746 bfad_exit(void)
1747 {
1748         pci_unregister_driver(&bfad_pci_driver);
1749         bfad_im_module_exit();
1750         bfad_free_fwimg();
1751 }
1752
1753 /* Firmware handling */
1754 static void
1755 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1756                 u32 *bfi_image_size, char *fw_name)
1757 {
1758         const struct firmware *fw;
1759
1760         if (request_firmware(&fw, fw_name, &pdev->dev)) {
1761                 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1762                 *bfi_image = NULL;
1763                 goto out;
1764         }
1765
1766         *bfi_image = vmalloc(fw->size);
1767         if (NULL == *bfi_image) {
1768                 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1769                         "size=%x!\n", (u32) fw->size);
1770                 goto out;
1771         }
1772
1773         memcpy(*bfi_image, fw->data, fw->size);
1774         *bfi_image_size = fw->size/sizeof(u32);
1775 out:
1776         release_firmware(fw);
1777 }
1778
1779 static u32 *
1780 bfad_load_fwimg(struct pci_dev *pdev)
1781 {
1782         if (bfa_asic_id_ct2(pdev->device)) {
1783                 if (bfi_image_ct2_size == 0)
1784                         bfad_read_firmware(pdev, &bfi_image_ct2,
1785                                 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1786                 return bfi_image_ct2;
1787         } else if (bfa_asic_id_ct(pdev->device)) {
1788                 if (bfi_image_ct_size == 0)
1789                         bfad_read_firmware(pdev, &bfi_image_ct,
1790                                 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1791                 return bfi_image_ct;
1792         } else if (bfa_asic_id_cb(pdev->device)) {
1793                 if (bfi_image_cb_size == 0)
1794                         bfad_read_firmware(pdev, &bfi_image_cb,
1795                                 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1796                 return bfi_image_cb;
1797         }
1798
1799         return NULL;
1800 }
1801
1802 static void
1803 bfad_free_fwimg(void)
1804 {
1805         if (bfi_image_ct2_size && bfi_image_ct2)
1806                 vfree(bfi_image_ct2);
1807         if (bfi_image_ct_size && bfi_image_ct)
1808                 vfree(bfi_image_ct);
1809         if (bfi_image_cb_size && bfi_image_cb)
1810                 vfree(bfi_image_cb);
1811 }
1812
1813 module_init(bfad_init);
1814 module_exit(bfad_exit);
1815 MODULE_LICENSE("GPL");
1816 MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1817 MODULE_AUTHOR("QLogic Corporation");
1818 MODULE_VERSION(BFAD_DRIVER_VERSION);