drivers/scsi/bfa/bfad.c

   1 /*
   2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 /*
  19  *  bfad.c Linux driver PCI interface module.
  20  */
  21 #include <linux/module.h>
  22 #include <linux/kthread.h>
  23 #include <linux/errno.h>
  24 #include <linux/sched.h>
  25 #include <linux/init.h>
  26 #include <linux/fs.h>
  27 #include <linux/pci.h>
  28 #include <linux/firmware.h>
  29 #include <asm/uaccess.h>
  30 #include <asm/fcntl.h>
  31
  32 #include "bfad_drv.h"
  33 #include "bfad_im.h"
  34 #include "bfa_fcs.h"
  35 #include "bfa_defs.h"
  36 #include "bfa.h"
  37
  38 BFA_TRC_FILE(LDRV, BFAD);
  39 DEFINE_MUTEX(bfad_mutex);
  40 LIST_HEAD(bfad_list);
  41
  42 static int      bfad_inst;
  43 static int      num_sgpgs_parm;
  44 int             supported_fc4s;
  45 char            *host_name, *os_name, *os_patch;
  46 int             num_rports, num_ios, num_tms;
  47 int             num_fcxps, num_ufbufs;
  48 int             reqq_size, rspq_size, num_sgpgs;
  49 int             rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
  50 int             bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
  51 int             bfa_io_max_sge = BFAD_IO_MAX_SGE;
  52 int             bfa_log_level = 3; /* WARNING log level */
  53 int             ioc_auto_recover = BFA_TRUE;
  54 int             bfa_linkup_delay = -1;
  55 int             fdmi_enable = BFA_TRUE;
  56 int             pcie_max_read_reqsz;
  57 int             bfa_debugfs_enable = 1;
  58 int             msix_disable_cb = 0, msix_disable_ct = 0;
  59 int             max_xfer_size = BFAD_MAX_SECTORS >> 1;
  60 int             max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
  61
  62 /* Firmware releated */
  63 u32     bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
  64 u32     *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
  65
  66 #define BFAD_FW_FILE_CB         "cbfw-3.2.1.1.bin"
  67 #define BFAD_FW_FILE_CT         "ctfw-3.2.1.1.bin"
  68 #define BFAD_FW_FILE_CT2        "ct2fw-3.2.1.1.bin"
  69
  70 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
  71 static void bfad_free_fwimg(void);
  72 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  73                 u32 *bfi_image_size, char *fw_name);
  74
  75 static const char *msix_name_ct[] = {
  76         "ctrl",
  77         "cpe0", "cpe1", "cpe2", "cpe3",
  78         "rme0", "rme1", "rme2", "rme3" };
  79
  80 static const char *msix_name_cb[] = {
  81         "cpe0", "cpe1", "cpe2", "cpe3",
  82         "rme0", "rme1", "rme2", "rme3",
  83         "eemc", "elpu0", "elpu1", "epss", "mlpu" };
  84
  85 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
  86 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
  87 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
  88
  89 module_param(os_name, charp, S_IRUGO | S_IWUSR);
  90 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
  91 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
  92 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
  93 module_param(host_name, charp, S_IRUGO | S_IWUSR);
  94 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
  95 module_param(num_rports, int, S_IRUGO | S_IWUSR);
  96 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
  97                                 "(physical/logical), default=1024");
  98 module_param(num_ios, int, S_IRUGO | S_IWUSR);
  99 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
 100 module_param(num_tms, int, S_IRUGO | S_IWUSR);
 101 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
 102 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
 103 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
 104 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
 105 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
 106                                 "buffers, default=64");
 107 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
 108 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
 109                                 "default=256");
 110 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
 111 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
 112                                 "default=64");
 113 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
 114 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
 115 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
 116 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
 117                                         "Range[>0]");
 118 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
 119 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
 120 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
 121 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
 122 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
 123 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
 124                                 "Range[Critical:1|Error:2|Warning:3|Info:4]");
 125 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
 126 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
 127                                 "Range[off:0|on:1]");
 128 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
 129 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
 130                         "boot port. Otherwise 10 secs in RHEL4 & 0 for "
 131                         "[RHEL5, SLES10, ESX40] Range[>0]");
 132 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
 133 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
 134                         "for Brocade-415/425/815/825 cards, default=0, "
 135                         " Range[false:0|true:1]");
 136 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
 137 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
 138                         "if possible for Brocade-1010/1020/804/1007/902/1741 "
 139                         "cards, default=0, Range[false:0|true:1]");
 140 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 141 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
 142                                 "Range[false:0|true:1]");
 143 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
 144 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
 145                 "(use system setting), Range[128|256|512|1024|2048|4096]");
 146 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
 147 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
 148                 " Range[false:0|true:1]");
 149 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
 150 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
 151                 " Range[64k|128k|256k|512k|1024k|2048k]");
 152 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
 153 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
 154
 155 static void
 156 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
 157 static void
 158 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
 159 static void
 160 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
 161 static void
 162 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
 163 static void
 164 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
 165 static void
 166 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
 167 static void
 168 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
 169
 170 /*
 171  * Beginning state for the driver instance, awaiting the pci_probe event
 172  */
 173 static void
 174 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
 175 {
 176         bfa_trc(bfad, event);
 177
 178         switch (event) {
 179         case BFAD_E_CREATE:
 180                 bfa_sm_set_state(bfad, bfad_sm_created);
 181                 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
 182                                                 "%s", "bfad_worker");
 183                 if (IS_ERR(bfad->bfad_tsk)) {
 184                         printk(KERN_INFO "bfad[%d]: Kernel thread "
 185                                 "creation failed!\n", bfad->inst_no);
 186                         bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
 187                 }
 188                 bfa_sm_send_event(bfad, BFAD_E_INIT);
 189                 break;
 190
 191         case BFAD_E_STOP:
 192                 /* Ignore stop; already in uninit */
 193                 break;
 194
 195         default:
 196                 bfa_sm_fault(bfad, event);
 197         }
 198 }
 199
 200 /*
 201  * Driver Instance is created, awaiting event INIT to initialize the bfad
 202  */
 203 static void
 204 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
 205 {
 206         unsigned long flags;
 207
 208         bfa_trc(bfad, event);
 209
 210         switch (event) {
 211         case BFAD_E_INIT:
 212                 bfa_sm_set_state(bfad, bfad_sm_initializing);
 213
 214                 init_completion(&bfad->comp);
 215
 216                 /* Enable Interrupt and wait bfa_init completion */
 217                 if (bfad_setup_intr(bfad)) {
 218                         printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
 219                                         bfad->inst_no);
 220                         bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED);
 221                         break;
 222                 }
 223
 224                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 225                 bfa_iocfc_init(&bfad->bfa);
 226                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 227
 228                 /* Set up interrupt handler for each vectors */
 229                 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
 230                         bfad_install_msix_handler(bfad)) {
 231                         printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
 232                                 __func__, bfad->inst_no);
 233                 }
 234
 235                 bfad_init_timer(bfad);
 236
 237                 wait_for_completion(&bfad->comp);
 238
 239                 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
 240                         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
 241                 } else {
 242                         printk(KERN_WARNING
 243                                 "bfa %s: bfa init failed\n",
 244                                 bfad->pci_name);
 245                         bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
 246                         bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 247                 }
 248
 249                 break;
 250
 251         case BFAD_E_KTHREAD_CREATE_FAILED:
 252                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 253                 break;
 254
 255         default:
 256                 bfa_sm_fault(bfad, event);
 257         }
 258 }
 259
 260 static void
 261 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
 262 {
 263         int     retval;
 264         unsigned long   flags;
 265
 266         bfa_trc(bfad, event);
 267
 268         switch (event) {
 269         case BFAD_E_INIT_SUCCESS:
 270                 kthread_stop(bfad->bfad_tsk);
 271                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 272                 bfad->bfad_tsk = NULL;
 273                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 274
 275                 retval = bfad_start_ops(bfad);
 276                 if (retval != BFA_STATUS_OK)
 277                         break;
 278                 bfa_sm_set_state(bfad, bfad_sm_operational);
 279                 break;
 280
 281         case BFAD_E_INTR_INIT_FAILED:
 282                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 283                 kthread_stop(bfad->bfad_tsk);
 284                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 285                 bfad->bfad_tsk = NULL;
 286                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 287                 break;
 288
 289         case BFAD_E_INIT_FAILED:
 290                 bfa_sm_set_state(bfad, bfad_sm_failed);
 291                 break;
 292         default:
 293                 bfa_sm_fault(bfad, event);
 294         }
 295 }
 296
 297 static void
 298 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
 299 {
 300         int     retval;
 301
 302         bfa_trc(bfad, event);
 303
 304         switch (event) {
 305         case BFAD_E_INIT_SUCCESS:
 306                 retval = bfad_start_ops(bfad);
 307                 if (retval != BFA_STATUS_OK)
 308                         break;
 309                 bfa_sm_set_state(bfad, bfad_sm_operational);
 310                 break;
 311
 312         case BFAD_E_STOP:
 313                 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
 314                         bfad_uncfg_pport(bfad);
 315                 if (bfad->bfad_flags & BFAD_FC4_PROBE_DONE) {
 316                         bfad_im_probe_undo(bfad);
 317                         bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 318                 }
 319                 bfad_stop(bfad);
 320                 break;
 321
 322         case BFAD_E_EXIT_COMP:
 323                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 324                 bfad_remove_intr(bfad);
 325                 del_timer_sync(&bfad->hal_tmo);
 326                 break;
 327
 328         default:
 329                 bfa_sm_fault(bfad, event);
 330         }
 331 }
 332
 333 static void
 334 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
 335 {
 336         bfa_trc(bfad, event);
 337
 338         switch (event) {
 339         case BFAD_E_STOP:
 340                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 341                 bfad_fcs_stop(bfad);
 342                 break;
 343
 344         default:
 345                 bfa_sm_fault(bfad, event);
 346         }
 347 }
 348
 349 static void
 350 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
 351 {
 352         bfa_trc(bfad, event);
 353
 354         switch (event) {
 355         case BFAD_E_FCS_EXIT_COMP:
 356                 bfa_sm_set_state(bfad, bfad_sm_stopping);
 357                 bfad_stop(bfad);
 358                 break;
 359
 360         default:
 361                 bfa_sm_fault(bfad, event);
 362         }
 363 }
 364
 365 static void
 366 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
 367 {
 368         bfa_trc(bfad, event);
 369
 370         switch (event) {
 371         case BFAD_E_EXIT_COMP:
 372                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 373                 bfad_remove_intr(bfad);
 374                 del_timer_sync(&bfad->hal_tmo);
 375                 bfad_im_probe_undo(bfad);
 376                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 377                 bfad_uncfg_pport(bfad);
 378                 break;
 379
 380         default:
 381                 bfa_sm_fault(bfad, event);
 382                 break;
 383         }
 384 }
 385
 386 /*
 387  *  BFA callbacks
 388  */
 389 void
 390 bfad_hcb_comp(void *arg, bfa_status_t status)
 391 {
 392         struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
 393
 394         fcomp->status = status;
 395         complete(&fcomp->comp);
 396 }
 397
 398 /*
 399  * bfa_init callback
 400  */
 401 void
 402 bfa_cb_init(void *drv, bfa_status_t init_status)
 403 {
 404         struct bfad_s         *bfad = drv;
 405
 406         if (init_status == BFA_STATUS_OK) {
 407                 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
 408
 409                 /*
 410                  * If BFAD_HAL_INIT_FAIL flag is set:
 411                  * Wake up the kernel thread to start
 412                  * the bfad operations after HAL init done
 413                  */
 414                 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
 415                         bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
 416                         wake_up_process(bfad->bfad_tsk);
 417                 }
 418         }
 419
 420         complete(&bfad->comp);
 421 }
 422
 423 /*
 424  *  BFA_FCS callbacks
 425  */
 426 struct bfad_port_s *
 427 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
 428                  enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
 429                  struct bfad_vport_s *vp_drv)
 430 {
 431         bfa_status_t    rc;
 432         struct bfad_port_s    *port_drv;
 433
 434         if (!vp_drv && !vf_drv) {
 435                 port_drv = &bfad->pport;
 436                 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
 437         } else if (!vp_drv && vf_drv) {
 438                 port_drv = &vf_drv->base_port;
 439                 port_drv->pvb_type = BFAD_PORT_VF_BASE;
 440         } else if (vp_drv && !vf_drv) {
 441                 port_drv = &vp_drv->drv_port;
 442                 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
 443         } else {
 444                 port_drv = &vp_drv->drv_port;
 445                 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
 446         }
 447
 448         port_drv->fcs_port = port;
 449         port_drv->roles = roles;
 450
 451         if (roles & BFA_LPORT_ROLE_FCP_IM) {
 452                 rc = bfad_im_port_new(bfad, port_drv);
 453                 if (rc != BFA_STATUS_OK) {
 454                         bfad_im_port_delete(bfad, port_drv);
 455                         port_drv = NULL;
 456                 }
 457         }
 458
 459         return port_drv;
 460 }
 461
 462 /*
 463  * FCS RPORT alloc callback, after successful PLOGI by FCS
 464  */
 465 bfa_status_t
 466 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
 467                     struct bfad_rport_s **rport_drv)
 468 {
 469         bfa_status_t    rc = BFA_STATUS_OK;
 470
 471         *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
 472         if (*rport_drv == NULL) {
 473                 rc = BFA_STATUS_ENOMEM;
 474                 goto ext;
 475         }
 476
 477         *rport = &(*rport_drv)->fcs_rport;
 478
 479 ext:
 480         return rc;
 481 }
 482
 483 /*
 484  * FCS PBC VPORT Create
 485  */
 486 void
 487 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
 488 {
 489
 490         struct bfa_lport_cfg_s port_cfg = {0};
 491         struct bfad_vport_s   *vport;
 492         int rc;
 493
 494         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
 495         if (!vport) {
 496                 bfa_trc(bfad, 0);
 497                 return;
 498         }
 499
 500         vport->drv_port.bfad = bfad;
 501         port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
 502         port_cfg.pwwn = pbc_vport.vp_pwwn;
 503         port_cfg.nwwn = pbc_vport.vp_nwwn;
 504         port_cfg.preboot_vp  = BFA_TRUE;
 505
 506         rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
 507                                   &port_cfg, vport);
 508
 509         if (rc != BFA_STATUS_OK) {
 510                 bfa_trc(bfad, 0);
 511                 return;
 512         }
 513
 514         list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
 515 }
 516
 517 void
 518 bfad_hal_mem_release(struct bfad_s *bfad)
 519 {
 520         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 521         struct bfa_mem_dma_s *dma_info, *dma_elem;
 522         struct bfa_mem_kva_s *kva_info, *kva_elem;
 523         struct list_head *dm_qe, *km_qe;
 524
 525         dma_info = &hal_meminfo->dma_info;
 526         kva_info = &hal_meminfo->kva_info;
 527
 528         /* Iterate through the KVA meminfo queue */
 529         list_for_each(km_qe, &kva_info->qe) {
 530                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 531                 vfree(kva_elem->kva);
 532         }
 533
 534         /* Iterate through the DMA meminfo queue */
 535         list_for_each(dm_qe, &dma_info->qe) {
 536                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 537                 dma_free_coherent(&bfad->pcidev->dev,
 538                                 dma_elem->mem_len, dma_elem->kva,
 539                                 (dma_addr_t) dma_elem->dma);
 540         }
 541
 542         memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
 543 }
 544
 545 void
 546 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
 547 {
 548         if (num_rports > 0)
 549                 bfa_cfg->fwcfg.num_rports = num_rports;
 550         if (num_ios > 0)
 551                 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
 552         if (num_tms > 0)
 553                 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
 554         if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
 555                 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
 556         if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
 557                 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
 558         if (reqq_size > 0)
 559                 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
 560         if (rspq_size > 0)
 561                 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
 562         if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
 563                 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
 564
 565         /*
 566          * populate the hal values back to the driver for sysfs use.
 567          * otherwise, the default values will be shown as 0 in sysfs
 568          */
 569         num_rports = bfa_cfg->fwcfg.num_rports;
 570         num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
 571         num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
 572         num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
 573         num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
 574         reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
 575         rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
 576         num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
 577 }
 578
 579 bfa_status_t
 580 bfad_hal_mem_alloc(struct bfad_s *bfad)
 581 {
 582         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 583         struct bfa_mem_dma_s *dma_info, *dma_elem;
 584         struct bfa_mem_kva_s *kva_info, *kva_elem;
 585         struct list_head *dm_qe, *km_qe;
 586         bfa_status_t    rc = BFA_STATUS_OK;
 587         dma_addr_t      phys_addr;
 588
 589         bfa_cfg_get_default(&bfad->ioc_cfg);
 590         bfad_update_hal_cfg(&bfad->ioc_cfg);
 591         bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
 592         bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
 593
 594         dma_info = &hal_meminfo->dma_info;
 595         kva_info = &hal_meminfo->kva_info;
 596
 597         /* Iterate through the KVA meminfo queue */
 598         list_for_each(km_qe, &kva_info->qe) {
 599                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 600                 kva_elem->kva = vmalloc(kva_elem->mem_len);
 601                 if (kva_elem->kva == NULL) {
 602                         bfad_hal_mem_release(bfad);
 603                         rc = BFA_STATUS_ENOMEM;
 604                         goto ext;
 605                 }
 606                 memset(kva_elem->kva, 0, kva_elem->mem_len);
 607         }
 608
 609         /* Iterate through the DMA meminfo queue */
 610         list_for_each(dm_qe, &dma_info->qe) {
 611                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 612                 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
 613                                                 dma_elem->mem_len,
 614                                                 &phys_addr, GFP_KERNEL);
 615                 if (dma_elem->kva == NULL) {
 616                         bfad_hal_mem_release(bfad);
 617                         rc = BFA_STATUS_ENOMEM;
 618                         goto ext;
 619                 }
 620                 dma_elem->dma = phys_addr;
 621                 memset(dma_elem->kva, 0, dma_elem->mem_len);
 622         }
 623 ext:
 624         return rc;
 625 }
 626
 627 /*
 628  * Create a vport under a vf.
 629  */
 630 bfa_status_t
 631 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
 632                   struct bfa_lport_cfg_s *port_cfg, struct device *dev)
 633 {
 634         struct bfad_vport_s   *vport;
 635         int             rc = BFA_STATUS_OK;
 636         unsigned long   flags;
 637         struct completion fcomp;
 638
 639         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
 640         if (!vport) {
 641                 rc = BFA_STATUS_ENOMEM;
 642                 goto ext;
 643         }
 644
 645         vport->drv_port.bfad = bfad;
 646         spin_lock_irqsave(&bfad->bfad_lock, flags);
 647         rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
 648                                   port_cfg, vport);
 649         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 650
 651         if (rc != BFA_STATUS_OK)
 652                 goto ext_free_vport;
 653
 654         if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
 655                 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
 656                                                         dev);
 657                 if (rc != BFA_STATUS_OK)
 658                         goto ext_free_fcs_vport;
 659         }
 660
 661         spin_lock_irqsave(&bfad->bfad_lock, flags);
 662         bfa_fcs_vport_start(&vport->fcs_vport);
 663         list_add_tail(&vport->list_entry, &bfad->vport_list);
 664         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 665
 666         return BFA_STATUS_OK;
 667
 668 ext_free_fcs_vport:
 669         spin_lock_irqsave(&bfad->bfad_lock, flags);
 670         vport->comp_del = &fcomp;
 671         init_completion(vport->comp_del);
 672         bfa_fcs_vport_delete(&vport->fcs_vport);
 673         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 674         wait_for_completion(vport->comp_del);
 675 ext_free_vport:
 676         kfree(vport);
 677 ext:
 678         return rc;
 679 }
 680
 681 void
 682 bfad_bfa_tmo(unsigned long data)
 683 {
 684         struct bfad_s         *bfad = (struct bfad_s *) data;
 685         unsigned long   flags;
 686         struct list_head               doneq;
 687
 688         spin_lock_irqsave(&bfad->bfad_lock, flags);
 689
 690         bfa_timer_beat(&bfad->bfa.timer_mod);
 691
 692         bfa_comp_deq(&bfad->bfa, &doneq);
 693         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 694
 695         if (!list_empty(&doneq)) {
 696                 bfa_comp_process(&bfad->bfa, &doneq);
 697                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 698                 bfa_comp_free(&bfad->bfa, &doneq);
 699                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 700         }
 701
 702         mod_timer(&bfad->hal_tmo,
 703                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 704 }
 705
 706 void
 707 bfad_init_timer(struct bfad_s *bfad)
 708 {
 709         init_timer(&bfad->hal_tmo);
 710         bfad->hal_tmo.function = bfad_bfa_tmo;
 711         bfad->hal_tmo.data = (unsigned long)bfad;
 712
 713         mod_timer(&bfad->hal_tmo,
 714                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 715 }
 716
 717 int
 718 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 719 {
 720         int             rc = -ENODEV;
 721
 722         if (pci_enable_device(pdev)) {
 723                 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
 724                 goto out;
 725         }
 726
 727         if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
 728                 goto out_disable_device;
 729
 730         pci_set_master(pdev);
 731
 732
 733         if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
 734             (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
 735                 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
 736                    (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
 737                         printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev);
 738                         goto out_release_region;
 739                 }
 740         }
 741
 742         /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
 743         pci_enable_pcie_error_reporting(pdev);
 744
 745         bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 746         bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 747
 748         if (bfad->pci_bar0_kva == NULL) {
 749                 printk(KERN_ERR "Fail to map bar0\n");
 750                 goto out_release_region;
 751         }
 752
 753         bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
 754         bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
 755         bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
 756         bfad->hal_pcidev.device_id = pdev->device;
 757         bfad->hal_pcidev.ssid = pdev->subsystem_device;
 758         bfad->pci_name = pci_name(pdev);
 759
 760         bfad->pci_attr.vendor_id = pdev->vendor;
 761         bfad->pci_attr.device_id = pdev->device;
 762         bfad->pci_attr.ssid = pdev->subsystem_device;
 763         bfad->pci_attr.ssvid = pdev->subsystem_vendor;
 764         bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
 765
 766         bfad->pcidev = pdev;
 767
 768         /* Adjust PCIe Maximum Read Request Size */
 769         if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
 770                 if (pcie_max_read_reqsz >= 128 &&
 771                     pcie_max_read_reqsz <= 4096 &&
 772                     is_power_of_2(pcie_max_read_reqsz)) {
 773                         int max_rq = pcie_get_readrq(pdev);
 774                         printk(KERN_WARNING "BFA[%s]: "
 775                                 "pcie_max_read_request_size is %d, "
 776                                 "reset to %d\n", bfad->pci_name, max_rq,
 777                                 pcie_max_read_reqsz);
 778                         pcie_set_readrq(pdev, pcie_max_read_reqsz);
 779                 } else {
 780                         printk(KERN_WARNING "BFA[%s]: invalid "
 781                                "pcie_max_read_request_size %d ignored\n",
 782                                bfad->pci_name, pcie_max_read_reqsz);
 783                 }
 784         }
 785
 786         pci_save_state(pdev);
 787
 788         return 0;
 789
 790 out_release_region:
 791         pci_release_regions(pdev);
 792 out_disable_device:
 793         pci_disable_device(pdev);
 794 out:
 795         return rc;
 796 }
 797
 798 void
 799 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 800 {
 801         pci_iounmap(pdev, bfad->pci_bar0_kva);
 802         pci_iounmap(pdev, bfad->pci_bar2_kva);
 803         pci_release_regions(pdev);
 804         /* Disable PCIE Advanced Error Recovery (AER) */
 805         pci_disable_pcie_error_reporting(pdev);
 806         pci_disable_device(pdev);
 807         pci_set_drvdata(pdev, NULL);
 808 }
 809
 810 bfa_status_t
 811 bfad_drv_init(struct bfad_s *bfad)
 812 {
 813         bfa_status_t    rc;
 814         unsigned long   flags;
 815
 816         bfad->cfg_data.rport_del_timeout = rport_del_timeout;
 817         bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
 818         bfad->cfg_data.io_max_sge = bfa_io_max_sge;
 819         bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
 820
 821         rc = bfad_hal_mem_alloc(bfad);
 822         if (rc != BFA_STATUS_OK) {
 823                 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
 824                        bfad->inst_no);
 825                 printk(KERN_WARNING
 826                         "Not enough memory to attach all Brocade HBA ports, %s",
 827                         "System may need more memory.\n");
 828                 goto out_hal_mem_alloc_failure;
 829         }
 830
 831         bfad->bfa.trcmod = bfad->trcmod;
 832         bfad->bfa.plog = &bfad->plog_buf;
 833         bfa_plog_init(&bfad->plog_buf);
 834         bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
 835                      0, "Driver Attach");
 836
 837         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
 838                    &bfad->hal_pcidev);
 839
 840         /* FCS INIT */
 841         spin_lock_irqsave(&bfad->bfad_lock, flags);
 842         bfad->bfa_fcs.trcmod = bfad->trcmod;
 843         bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
 844         bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
 845         bfa_fcs_init(&bfad->bfa_fcs);
 846         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 847
 848         bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
 849
 850         /* configure base port */
 851         rc = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
 852         if (rc != BFA_STATUS_OK)
 853                 goto out_cfg_pport_fail;
 854
 855         return BFA_STATUS_OK;
 856
 857 out_cfg_pport_fail:
 858         /* fcs exit - on cfg pport failure */
 859         spin_lock_irqsave(&bfad->bfad_lock, flags);
 860         init_completion(&bfad->comp);
 861         bfad->pport.flags |= BFAD_PORT_DELETE;
 862         bfa_fcs_exit(&bfad->bfa_fcs);
 863         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 864         wait_for_completion(&bfad->comp);
 865         /* bfa detach - free hal memory */
 866         bfa_detach(&bfad->bfa);
 867         bfad_hal_mem_release(bfad);
 868 out_hal_mem_alloc_failure:
 869         return BFA_STATUS_FAILED;
 870 }
 871
 872 void
 873 bfad_drv_uninit(struct bfad_s *bfad)
 874 {
 875         unsigned long   flags;
 876
 877         spin_lock_irqsave(&bfad->bfad_lock, flags);
 878         init_completion(&bfad->comp);
 879         bfa_iocfc_stop(&bfad->bfa);
 880         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 881         wait_for_completion(&bfad->comp);
 882
 883         del_timer_sync(&bfad->hal_tmo);
 884         bfa_isr_disable(&bfad->bfa);
 885         bfa_detach(&bfad->bfa);
 886         bfad_remove_intr(bfad);
 887         bfad_hal_mem_release(bfad);
 888
 889         bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
 890 }
 891
 892 void
 893 bfad_drv_start(struct bfad_s *bfad)
 894 {
 895         unsigned long   flags;
 896
 897         spin_lock_irqsave(&bfad->bfad_lock, flags);
 898         bfa_iocfc_start(&bfad->bfa);
 899         bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
 900         bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
 901         bfad->bfad_flags |= BFAD_HAL_START_DONE;
 902         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 903
 904         if (bfad->im)
 905                 flush_workqueue(bfad->im->drv_workq);
 906 }
 907
 908 void
 909 bfad_fcs_stop(struct bfad_s *bfad)
 910 {
 911         unsigned long   flags;
 912
 913         spin_lock_irqsave(&bfad->bfad_lock, flags);
 914         init_completion(&bfad->comp);
 915         bfad->pport.flags |= BFAD_PORT_DELETE;
 916         bfa_fcs_exit(&bfad->bfa_fcs);
 917         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 918         wait_for_completion(&bfad->comp);
 919
 920         bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 921 }
 922
 923 void
 924 bfad_stop(struct bfad_s *bfad)
 925 {
 926         unsigned long   flags;
 927
 928         spin_lock_irqsave(&bfad->bfad_lock, flags);
 929         init_completion(&bfad->comp);
 930         bfa_iocfc_stop(&bfad->bfa);
 931         bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
 932         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 933         wait_for_completion(&bfad->comp);
 934
 935         bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
 936 }
 937
 938 bfa_status_t
 939 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
 940 {
 941         int             rc = BFA_STATUS_OK;
 942
 943         /* Allocate scsi_host for the physical port */
 944         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 945             (role & BFA_LPORT_ROLE_FCP_IM)) {
 946                 if (bfad->pport.im_port == NULL) {
 947                         rc = BFA_STATUS_FAILED;
 948                         goto out;
 949                 }
 950
 951                 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
 952                                                 &bfad->pcidev->dev);
 953                 if (rc != BFA_STATUS_OK)
 954                         goto out;
 955
 956                 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
 957         }
 958
 959         bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
 960
 961 out:
 962         return rc;
 963 }
 964
 965 void
 966 bfad_uncfg_pport(struct bfad_s *bfad)
 967 {
 968         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 969             (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
 970                 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
 971                 bfad_im_port_clean(bfad->pport.im_port);
 972                 kfree(bfad->pport.im_port);
 973                 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
 974         }
 975
 976         bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
 977 }
 978
 979 bfa_status_t
 980 bfad_start_ops(struct bfad_s *bfad) {
 981
 982         int     retval;
 983         unsigned long   flags;
 984         struct bfad_vport_s *vport, *vport_new;
 985         struct bfa_fcs_driver_info_s driver_info;
 986
 987         /* Limit min/max. xfer size to [64k-32MB] */
 988         if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
 989                 max_xfer_size = BFAD_MIN_SECTORS >> 1;
 990         if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
 991                 max_xfer_size = BFAD_MAX_SECTORS >> 1;
 992
 993         /* Fill the driver_info info to fcs*/
 994         memset(&driver_info, 0, sizeof(driver_info));
 995         strncpy(driver_info.version, BFAD_DRIVER_VERSION,
 996                 sizeof(driver_info.version) - 1);
 997         if (host_name)
 998                 strncpy(driver_info.host_machine_name, host_name,
 999                         sizeof(driver_info.host_machine_name) - 1);
1000         if (os_name)
1001                 strncpy(driver_info.host_os_name, os_name,
1002                         sizeof(driver_info.host_os_name) - 1);
1003         if (os_patch)
1004                 strncpy(driver_info.host_os_patch, os_patch,
1005                         sizeof(driver_info.host_os_patch) - 1);
1006
1007         strncpy(driver_info.os_device_name, bfad->pci_name,
1008                 sizeof(driver_info.os_device_name) - 1);
1009
1010         /* FCS driver info init */
1011         spin_lock_irqsave(&bfad->bfad_lock, flags);
1012         bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1013         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1014
1015         /*
1016          * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
1017          * with values learned during bfa_init firmware GETATTR REQ.
1018          */
1019         bfa_fcs_update_cfg(&bfad->bfa_fcs);
1020
1021         /* Setup fc host fixed attribute if the lk supports */
1022         bfad_fc_host_init(bfad->pport.im_port);
1023
1024         /* BFAD level FC4 IM specific resource allocation */
1025         retval = bfad_im_probe(bfad);
1026         if (retval != BFA_STATUS_OK) {
1027                 printk(KERN_WARNING "bfad_im_probe failed\n");
1028                 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1029                         bfa_sm_set_state(bfad, bfad_sm_failed);
1030                 bfad_im_probe_undo(bfad);
1031                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
1032                 bfad_uncfg_pport(bfad);
1033                 bfad_stop(bfad);
1034                 return BFA_STATUS_FAILED;
1035         } else
1036                 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1037
1038         bfad_drv_start(bfad);
1039
1040         /* Complete pbc vport create */
1041         list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1042                                 list_entry) {
1043                 struct fc_vport_identifiers vid;
1044                 struct fc_vport *fc_vport;
1045                 char pwwn_buf[BFA_STRING_32];
1046
1047                 memset(&vid, 0, sizeof(vid));
1048                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1049                 vid.vport_type = FC_PORTTYPE_NPIV;
1050                 vid.disable = false;
1051                 vid.node_name = wwn_to_u64((u8 *)
1052                                 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1053                 vid.port_name = wwn_to_u64((u8 *)
1054                                 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1055                 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1056                 if (!fc_vport) {
1057                         wwn2str(pwwn_buf, vid.port_name);
1058                         printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1059                                 " %s\n", bfad->inst_no, pwwn_buf);
1060                 }
1061                 list_del(&vport->list_entry);
1062                 kfree(vport);
1063         }
1064
1065         /*
1066          * If bfa_linkup_delay is set to -1 default; try to retrive the
1067          * value using the bfad_get_linkup_delay(); else use the
1068          * passed in module param value as the bfa_linkup_delay.
1069          */
1070         if (bfa_linkup_delay < 0) {
1071                 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1072                 bfad_rport_online_wait(bfad);
1073                 bfa_linkup_delay = -1;
1074         } else
1075                 bfad_rport_online_wait(bfad);
1076
1077         BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1078
1079         return BFA_STATUS_OK;
1080 }
1081
1082 int
1083 bfad_worker(void *ptr)
1084 {
1085         struct bfad_s *bfad;
1086         unsigned long   flags;
1087
1088         bfad = (struct bfad_s *)ptr;
1089
1090         while (!kthread_should_stop()) {
1091
1092                 /* Send event BFAD_E_INIT_SUCCESS */
1093                 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1094
1095                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1096                 bfad->bfad_tsk = NULL;
1097                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1098
1099                 break;
1100         }
1101
1102         return 0;
1103 }
1104
1105 /*
1106  *  BFA driver interrupt functions
1107  */
1108 irqreturn_t
1109 bfad_intx(int irq, void *dev_id)
1110 {
1111         struct bfad_s   *bfad = dev_id;
1112         struct list_head        doneq;
1113         unsigned long   flags;
1114         bfa_boolean_t rc;
1115
1116         spin_lock_irqsave(&bfad->bfad_lock, flags);
1117         rc = bfa_intx(&bfad->bfa);
1118         if (!rc) {
1119                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1120                 return IRQ_NONE;
1121         }
1122
1123         bfa_comp_deq(&bfad->bfa, &doneq);
1124         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1125
1126         if (!list_empty(&doneq)) {
1127                 bfa_comp_process(&bfad->bfa, &doneq);
1128
1129                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1130                 bfa_comp_free(&bfad->bfa, &doneq);
1131                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1132         }
1133
1134         return IRQ_HANDLED;
1135
1136 }
1137
1138 static irqreturn_t
1139 bfad_msix(int irq, void *dev_id)
1140 {
1141         struct bfad_msix_s *vec = dev_id;
1142         struct bfad_s *bfad = vec->bfad;
1143         struct list_head doneq;
1144         unsigned long   flags;
1145
1146         spin_lock_irqsave(&bfad->bfad_lock, flags);
1147
1148         bfa_msix(&bfad->bfa, vec->msix.entry);
1149         bfa_comp_deq(&bfad->bfa, &doneq);
1150         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1151
1152         if (!list_empty(&doneq)) {
1153                 bfa_comp_process(&bfad->bfa, &doneq);
1154
1155                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1156                 bfa_comp_free(&bfad->bfa, &doneq);
1157                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1158         }
1159
1160         return IRQ_HANDLED;
1161 }
1162
1163 /*
1164  * Initialize the MSIX entry table.
1165  */
1166 static void
1167 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1168                          int mask, int max_bit)
1169 {
1170         int     i;
1171         int     match = 0x00000001;
1172
1173         for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1174                 if (mask & match) {
1175                         bfad->msix_tab[bfad->nvec].msix.entry = i;
1176                         bfad->msix_tab[bfad->nvec].bfad = bfad;
1177                         msix_entries[bfad->nvec].entry = i;
1178                         bfad->nvec++;
1179                 }
1180
1181                 match <<= 1;
1182         }
1183
1184 }
1185
1186 int
1187 bfad_install_msix_handler(struct bfad_s *bfad)
1188 {
1189         int i, error = 0;
1190
1191         for (i = 0; i < bfad->nvec; i++) {
1192                 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1193                                 bfad->pci_name,
1194                                 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1195                                 msix_name_cb[i] : msix_name_ct[i]));
1196
1197                 error = request_irq(bfad->msix_tab[i].msix.vector,
1198                                     (irq_handler_t) bfad_msix, 0,
1199                                     bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1200                 bfa_trc(bfad, i);
1201                 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1202                 if (error) {
1203                         int     j;
1204
1205                         for (j = 0; j < i; j++)
1206                                 free_irq(bfad->msix_tab[j].msix.vector,
1207                                                 &bfad->msix_tab[j]);
1208
1209                         bfad->bfad_flags &= ~BFAD_MSIX_ON;
1210                         pci_disable_msix(bfad->pcidev);
1211
1212                         return 1;
1213                 }
1214         }
1215
1216         return 0;
1217 }
1218
1219 /*
1220  * Setup MSIX based interrupt.
1221  */
1222 int
1223 bfad_setup_intr(struct bfad_s *bfad)
1224 {
1225         int error = 0;
1226         u32 mask = 0, i, num_bit = 0, max_bit = 0;
1227         struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1228         struct pci_dev *pdev = bfad->pcidev;
1229         u16     reg;
1230
1231         /* Call BFA to get the msix map for this PCI function.  */
1232         bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1233
1234         /* Set up the msix entry table */
1235         bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1236
1237         if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1238            (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1239
1240                 error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
1241                 if (error) {
1242                         /* In CT1 & CT2, try to allocate just one vector */
1243                         if (bfa_asic_id_ctc(pdev->device)) {
1244                                 printk(KERN_WARNING "bfa %s: trying one msix "
1245                                        "vector failed to allocate %d[%d]\n",
1246                                        bfad->pci_name, bfad->nvec, error);
1247                                 bfad->nvec = 1;
1248                                 error = pci_enable_msix(bfad->pcidev,
1249                                                 msix_entries, bfad->nvec);
1250                         }
1251
1252                         /*
1253                          * Only error number of vector is available.
1254                          * We don't have a mechanism to map multiple
1255                          * interrupts into one vector, so even if we
1256                          * can try to request less vectors, we don't
1257                          * know how to associate interrupt events to
1258                          *  vectors. Linux doesn't duplicate vectors
1259                          * in the MSIX table for this case.
1260                          */
1261                         if (error) {
1262                                 printk(KERN_WARNING "bfad%d: "
1263                                        "pci_enable_msix failed (%d), "
1264                                        "use line based.\n",
1265                                         bfad->inst_no, error);
1266                                 goto line_based;
1267                         }
1268                 }
1269
1270                 /* Disable INTX in MSI-X mode */
1271                 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1272
1273                 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1274                         pci_write_config_word(pdev, PCI_COMMAND,
1275                                 reg | PCI_COMMAND_INTX_DISABLE);
1276
1277                 /* Save the vectors */
1278                 for (i = 0; i < bfad->nvec; i++) {
1279                         bfa_trc(bfad, msix_entries[i].vector);
1280                         bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1281                 }
1282
1283                 bfa_msix_init(&bfad->bfa, bfad->nvec);
1284
1285                 bfad->bfad_flags |= BFAD_MSIX_ON;
1286
1287                 return error;
1288         }
1289
1290 line_based:
1291         error = 0;
1292         if (request_irq
1293             (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
1294              BFAD_DRIVER_NAME, bfad) != 0) {
1295                 /* Enable interrupt handler failed */
1296                 return 1;
1297         }
1298         bfad->bfad_flags |= BFAD_INTX_ON;
1299
1300         return error;
1301 }
1302
1303 void
1304 bfad_remove_intr(struct bfad_s *bfad)
1305 {
1306         int     i;
1307
1308         if (bfad->bfad_flags & BFAD_MSIX_ON) {
1309                 for (i = 0; i < bfad->nvec; i++)
1310                         free_irq(bfad->msix_tab[i].msix.vector,
1311                                         &bfad->msix_tab[i]);
1312
1313                 pci_disable_msix(bfad->pcidev);
1314                 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1315         } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1316                 free_irq(bfad->pcidev->irq, bfad);
1317         }
1318 }
1319
1320 /*
1321  * PCI probe entry.
1322  */
1323 int
1324 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1325 {
1326         struct bfad_s   *bfad;
1327         int             error = -ENODEV, retval, i;
1328
1329         /* For single port cards - only claim function 0 */
1330         if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1331                 (PCI_FUNC(pdev->devfn) != 0))
1332                 return -ENODEV;
1333
1334         bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1335         if (!bfad) {
1336                 error = -ENOMEM;
1337                 goto out;
1338         }
1339
1340         bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1341         if (!bfad->trcmod) {
1342                 printk(KERN_WARNING "Error alloc trace buffer!\n");
1343                 error = -ENOMEM;
1344                 goto out_alloc_trace_failure;
1345         }
1346
1347         /* TRACE INIT */
1348         bfa_trc_init(bfad->trcmod);
1349         bfa_trc(bfad, bfad_inst);
1350
1351         /* AEN INIT */
1352         INIT_LIST_HEAD(&bfad->free_aen_q);
1353         INIT_LIST_HEAD(&bfad->active_aen_q);
1354         for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1355                 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1356
1357         if (!(bfad_load_fwimg(pdev))) {
1358                 kfree(bfad->trcmod);
1359                 goto out_alloc_trace_failure;
1360         }
1361
1362         retval = bfad_pci_init(pdev, bfad);
1363         if (retval) {
1364                 printk(KERN_WARNING "bfad_pci_init failure!\n");
1365                 error = retval;
1366                 goto out_pci_init_failure;
1367         }
1368
1369         mutex_lock(&bfad_mutex);
1370         bfad->inst_no = bfad_inst++;
1371         list_add_tail(&bfad->list_entry, &bfad_list);
1372         mutex_unlock(&bfad_mutex);
1373
1374         /* Initializing the state machine: State set to uninit */
1375         bfa_sm_set_state(bfad, bfad_sm_uninit);
1376
1377         spin_lock_init(&bfad->bfad_lock);
1378         spin_lock_init(&bfad->bfad_aen_spinlock);
1379
1380         pci_set_drvdata(pdev, bfad);
1381
1382         bfad->ref_count = 0;
1383         bfad->pport.bfad = bfad;
1384         INIT_LIST_HEAD(&bfad->pbc_vport_list);
1385         INIT_LIST_HEAD(&bfad->vport_list);
1386
1387         /* Setup the debugfs node for this bfad */
1388         if (bfa_debugfs_enable)
1389                 bfad_debugfs_init(&bfad->pport);
1390
1391         retval = bfad_drv_init(bfad);
1392         if (retval != BFA_STATUS_OK)
1393                 goto out_drv_init_failure;
1394
1395         bfa_sm_send_event(bfad, BFAD_E_CREATE);
1396
1397         if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1398                 goto out_bfad_sm_failure;
1399
1400         return 0;
1401
1402 out_bfad_sm_failure:
1403         bfa_detach(&bfad->bfa);
1404         bfad_hal_mem_release(bfad);
1405 out_drv_init_failure:
1406         /* Remove the debugfs node for this bfad */
1407         kfree(bfad->regdata);
1408         bfad_debugfs_exit(&bfad->pport);
1409         mutex_lock(&bfad_mutex);
1410         bfad_inst--;
1411         list_del(&bfad->list_entry);
1412         mutex_unlock(&bfad_mutex);
1413         bfad_pci_uninit(pdev, bfad);
1414 out_pci_init_failure:
1415         kfree(bfad->trcmod);
1416 out_alloc_trace_failure:
1417         kfree(bfad);
1418 out:
1419         return error;
1420 }
1421
1422 /*
1423  * PCI remove entry.
1424  */
1425 void
1426 bfad_pci_remove(struct pci_dev *pdev)
1427 {
1428         struct bfad_s         *bfad = pci_get_drvdata(pdev);
1429         unsigned long   flags;
1430
1431         bfa_trc(bfad, bfad->inst_no);
1432
1433         spin_lock_irqsave(&bfad->bfad_lock, flags);
1434         if (bfad->bfad_tsk != NULL) {
1435                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1436                 kthread_stop(bfad->bfad_tsk);
1437         } else {
1438                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1439         }
1440
1441         /* Send Event BFAD_E_STOP */
1442         bfa_sm_send_event(bfad, BFAD_E_STOP);
1443
1444         /* Driver detach and dealloc mem */
1445         spin_lock_irqsave(&bfad->bfad_lock, flags);
1446         bfa_detach(&bfad->bfa);
1447         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1448         bfad_hal_mem_release(bfad);
1449
1450         /* Remove the debugfs node for this bfad */
1451         kfree(bfad->regdata);
1452         bfad_debugfs_exit(&bfad->pport);
1453
1454         /* Cleaning the BFAD instance */
1455         mutex_lock(&bfad_mutex);
1456         bfad_inst--;
1457         list_del(&bfad->list_entry);
1458         mutex_unlock(&bfad_mutex);
1459         bfad_pci_uninit(pdev, bfad);
1460
1461         kfree(bfad->trcmod);
1462         kfree(bfad);
1463 }
1464
1465 /*
1466  * PCI Error Recovery entry, error detected.
1467  */
1468 static pci_ers_result_t
1469 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1470 {
1471         struct bfad_s *bfad = pci_get_drvdata(pdev);
1472         unsigned long   flags;
1473         pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1474
1475         dev_printk(KERN_ERR, &pdev->dev,
1476                    "error detected state: %d - flags: 0x%x\n",
1477                    state, bfad->bfad_flags);
1478
1479         switch (state) {
1480         case pci_channel_io_normal: /* non-fatal error */
1481                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1482                 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1483                 /* Suspend/fail all bfa operations */
1484                 bfa_ioc_suspend(&bfad->bfa.ioc);
1485                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1486                 del_timer_sync(&bfad->hal_tmo);
1487                 ret = PCI_ERS_RESULT_CAN_RECOVER;
1488                 break;
1489         case pci_channel_io_frozen: /* fatal error */
1490                 init_completion(&bfad->comp);
1491                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1492                 bfad->bfad_flags |= BFAD_EEH_BUSY;
1493                 /* Suspend/fail all bfa operations */
1494                 bfa_ioc_suspend(&bfad->bfa.ioc);
1495                 bfa_fcs_stop(&bfad->bfa_fcs);
1496                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1497                 wait_for_completion(&bfad->comp);
1498
1499                 bfad_remove_intr(bfad);
1500                 del_timer_sync(&bfad->hal_tmo);
1501                 pci_disable_device(pdev);
1502                 ret = PCI_ERS_RESULT_NEED_RESET;
1503                 break;
1504         case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1505                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1506                 bfad->bfad_flags |= BFAD_EEH_BUSY |
1507                                     BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1508                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1509
1510                 /* If the error_detected handler is called with the reason
1511                  * pci_channel_io_perm_failure - it will subsequently call
1512                  * pci_remove() entry point to remove the pci device from the
1513                  * system - So defer the cleanup to pci_remove(); cleaning up
1514                  * here causes inconsistent state during pci_remove().
1515                  */
1516                 ret = PCI_ERS_RESULT_DISCONNECT;
1517                 break;
1518         default:
1519                 WARN_ON(1);
1520         }
1521
1522         return ret;
1523 }
1524
1525 int
1526 restart_bfa(struct bfad_s *bfad)
1527 {
1528         unsigned long flags;
1529         struct pci_dev *pdev = bfad->pcidev;
1530
1531         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1532                    &bfad->meminfo, &bfad->hal_pcidev);
1533
1534         /* Enable Interrupt and wait bfa_init completion */
1535         if (bfad_setup_intr(bfad)) {
1536                 dev_printk(KERN_WARNING, &pdev->dev,
1537                            "%s: bfad_setup_intr failed\n", bfad->pci_name);
1538                 bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED);
1539                 return -1;
1540         }
1541
1542         init_completion(&bfad->comp);
1543         spin_lock_irqsave(&bfad->bfad_lock, flags);
1544         bfa_iocfc_init(&bfad->bfa);
1545         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1546
1547         /* Set up interrupt handler for each vectors */
1548         if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1549             bfad_install_msix_handler(bfad))
1550                 dev_printk(KERN_WARNING, &pdev->dev,
1551                            "%s: install_msix failed.\n", bfad->pci_name);
1552
1553         bfad_init_timer(bfad);
1554         wait_for_completion(&bfad->comp);
1555         bfad_drv_start(bfad);
1556
1557         return 0;
1558 }
1559
1560 /*
1561  * PCI Error Recovery entry, re-initialize the chip.
1562  */
1563 static pci_ers_result_t
1564 bfad_pci_slot_reset(struct pci_dev *pdev)
1565 {
1566         struct bfad_s *bfad = pci_get_drvdata(pdev);
1567         u8 byte;
1568
1569         dev_printk(KERN_ERR, &pdev->dev,
1570                    "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1571
1572         if (pci_enable_device(pdev)) {
1573                 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1574                            "PCI device after reset.\n");
1575                 return PCI_ERS_RESULT_DISCONNECT;
1576         }
1577
1578         pci_restore_state(pdev);
1579
1580         /*
1581          * Read some byte (e.g. DMA max. payload size which can't
1582          * be 0xff any time) to make sure - we did not hit another PCI error
1583          * in the middle of recovery. If we did, then declare permanent failure.
1584          */
1585         pci_read_config_byte(pdev, 0x68, &byte);
1586         if (byte == 0xff) {
1587                 dev_printk(KERN_ERR, &pdev->dev,
1588                            "slot_reset failed ... got another PCI error !\n");
1589                 goto out_disable_device;
1590         }
1591
1592         pci_save_state(pdev);
1593         pci_set_master(pdev);
1594
1595         if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0)
1596                 if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0)
1597                         goto out_disable_device;
1598
1599         pci_cleanup_aer_uncorrect_error_status(pdev);
1600
1601         if (restart_bfa(bfad) == -1)
1602                 goto out_disable_device;
1603
1604         pci_enable_pcie_error_reporting(pdev);
1605         dev_printk(KERN_WARNING, &pdev->dev,
1606                    "slot_reset completed  flags: 0x%x!\n", bfad->bfad_flags);
1607
1608         return PCI_ERS_RESULT_RECOVERED;
1609
1610 out_disable_device:
1611         pci_disable_device(pdev);
1612         return PCI_ERS_RESULT_DISCONNECT;
1613 }
1614
1615 static pci_ers_result_t
1616 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1617 {
1618         unsigned long   flags;
1619         struct bfad_s *bfad = pci_get_drvdata(pdev);
1620
1621         dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1622
1623         /* Fetch FW diagnostic information */
1624         bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1625
1626         /* Cancel all pending IOs */
1627         spin_lock_irqsave(&bfad->bfad_lock, flags);
1628         init_completion(&bfad->comp);
1629         bfa_fcs_stop(&bfad->bfa_fcs);
1630         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1631         wait_for_completion(&bfad->comp);
1632
1633         bfad_remove_intr(bfad);
1634         del_timer_sync(&bfad->hal_tmo);
1635         pci_disable_device(pdev);
1636
1637         return PCI_ERS_RESULT_NEED_RESET;
1638 }
1639
1640 static void
1641 bfad_pci_resume(struct pci_dev *pdev)
1642 {
1643         unsigned long   flags;
1644         struct bfad_s *bfad = pci_get_drvdata(pdev);
1645
1646         dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1647
1648         /* wait until the link is online */
1649         bfad_rport_online_wait(bfad);
1650
1651         spin_lock_irqsave(&bfad->bfad_lock, flags);
1652         bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1653         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1654 }
1655
1656 struct pci_device_id bfad_id_table[] = {
1657         {
1658                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1659                 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1660                 .subvendor = PCI_ANY_ID,
1661                 .subdevice = PCI_ANY_ID,
1662         },
1663         {
1664                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1665                 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1666                 .subvendor = PCI_ANY_ID,
1667                 .subdevice = PCI_ANY_ID,
1668         },
1669         {
1670                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1671                 .device = BFA_PCI_DEVICE_ID_CT,
1672                 .subvendor = PCI_ANY_ID,
1673                 .subdevice = PCI_ANY_ID,
1674                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1675                 .class_mask = ~0,
1676         },
1677         {
1678                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1679                 .device = BFA_PCI_DEVICE_ID_CT_FC,
1680                 .subvendor = PCI_ANY_ID,
1681                 .subdevice = PCI_ANY_ID,
1682                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1683                 .class_mask = ~0,
1684         },
1685         {
1686                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1687                 .device = BFA_PCI_DEVICE_ID_CT2,
1688                 .subvendor = PCI_ANY_ID,
1689                 .subdevice = PCI_ANY_ID,
1690                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1691                 .class_mask = ~0,
1692         },
1693
1694         {
1695                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1696                 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1697                 .subvendor = PCI_ANY_ID,
1698                 .subdevice = PCI_ANY_ID,
1699                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1700                 .class_mask = ~0,
1701         },
1702         {0, 0},
1703 };
1704
1705 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1706
1707 /*
1708  * PCI error recovery handlers.
1709  */
1710 static struct pci_error_handlers bfad_err_handler = {
1711         .error_detected = bfad_pci_error_detected,
1712         .slot_reset = bfad_pci_slot_reset,
1713         .mmio_enabled = bfad_pci_mmio_enabled,
1714         .resume = bfad_pci_resume,
1715 };
1716
1717 static struct pci_driver bfad_pci_driver = {
1718         .name = BFAD_DRIVER_NAME,
1719         .id_table = bfad_id_table,
1720         .probe = bfad_pci_probe,
1721         .remove = bfad_pci_remove,
1722         .err_handler = &bfad_err_handler,
1723 };
1724
1725 /*
1726  * Driver module init.
1727  */
1728 static int __init
1729 bfad_init(void)
1730 {
1731         int             error = 0;
1732
1733         printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1734                         BFAD_DRIVER_VERSION);
1735
1736         if (num_sgpgs > 0)
1737                 num_sgpgs_parm = num_sgpgs;
1738
1739         error = bfad_im_module_init();
1740         if (error) {
1741                 error = -ENOMEM;
1742                 printk(KERN_WARNING "bfad_im_module_init failure\n");
1743                 goto ext;
1744         }
1745
1746         if (strcmp(FCPI_NAME, " fcpim") == 0)
1747                 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1748
1749         bfa_auto_recover = ioc_auto_recover;
1750         bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1751         bfa_fcs_rport_set_max_logins(max_rport_logins);
1752
1753         error = pci_register_driver(&bfad_pci_driver);
1754         if (error) {
1755                 printk(KERN_WARNING "pci_register_driver failure\n");
1756                 goto ext;
1757         }
1758
1759         return 0;
1760
1761 ext:
1762         bfad_im_module_exit();
1763         return error;
1764 }
1765
1766 /*
1767  * Driver module exit.
1768  */
1769 static void __exit
1770 bfad_exit(void)
1771 {
1772         pci_unregister_driver(&bfad_pci_driver);
1773         bfad_im_module_exit();
1774         bfad_free_fwimg();
1775 }
1776
1777 /* Firmware handling */
1778 static void
1779 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1780                 u32 *bfi_image_size, char *fw_name)
1781 {
1782         const struct firmware *fw;
1783
1784         if (request_firmware(&fw, fw_name, &pdev->dev)) {
1785                 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1786                 *bfi_image = NULL;
1787                 goto out;
1788         }
1789
1790         *bfi_image = vmalloc(fw->size);
1791         if (NULL == *bfi_image) {
1792                 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1793                         "size=%x!\n", (u32) fw->size);
1794                 goto out;
1795         }
1796
1797         memcpy(*bfi_image, fw->data, fw->size);
1798         *bfi_image_size = fw->size/sizeof(u32);
1799 out:
1800         release_firmware(fw);
1801 }
1802
1803 static u32 *
1804 bfad_load_fwimg(struct pci_dev *pdev)
1805 {
1806         if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
1807                 if (bfi_image_ct2_size == 0)
1808                         bfad_read_firmware(pdev, &bfi_image_ct2,
1809                                 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1810                 return bfi_image_ct2;
1811         } else if (bfa_asic_id_ct(pdev->device)) {
1812                 if (bfi_image_ct_size == 0)
1813                         bfad_read_firmware(pdev, &bfi_image_ct,
1814                                 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1815                 return bfi_image_ct;
1816         } else {
1817                 if (bfi_image_cb_size == 0)
1818                         bfad_read_firmware(pdev, &bfi_image_cb,
1819                                 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1820                 return bfi_image_cb;
1821         }
1822 }
1823
1824 static void
1825 bfad_free_fwimg(void)
1826 {
1827         if (bfi_image_ct2_size && bfi_image_ct2)
1828                 vfree(bfi_image_ct2);
1829         if (bfi_image_ct_size && bfi_image_ct)
1830                 vfree(bfi_image_ct);
1831         if (bfi_image_cb_size && bfi_image_cb)
1832                 vfree(bfi_image_cb);
1833 }
1834
1835 module_init(bfad_init);
1836 module_exit(bfad_exit);
1837 MODULE_LICENSE("GPL");
1838 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1839 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1840 MODULE_VERSION(BFAD_DRIVER_VERSION);