1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2005 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 9 #include <linux/moduleparam.h> 10 #include <linux/vmalloc.h> 11 #include <linux/delay.h> 12 #include <linux/kthread.h> 13 14 #include <scsi/scsi_tcq.h> 15 #include <scsi/scsicam.h> 16 #include <scsi/scsi_transport.h> 17 #include <scsi/scsi_transport_fc.h> 18 19 /* 20 * Driver version 21 */ 22 char qla2x00_version_str[40]; 23 24 /* 25 * SRB allocation cache 26 */ 27 static kmem_cache_t *srb_cachep; 28 29 /* 30 * Ioctl related information. 31 */ 32 static int num_hosts; 33 34 int ql2xlogintimeout = 20; 35 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR); 36 MODULE_PARM_DESC(ql2xlogintimeout, 37 "Login timeout value in seconds."); 38 39 int qlport_down_retry = 30; 40 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR); 41 MODULE_PARM_DESC(qlport_down_retry, 42 "Maximum number of command retries to a port that returns" 43 "a PORT-DOWN status."); 44 45 int ql2xplogiabsentdevice; 46 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR); 47 MODULE_PARM_DESC(ql2xplogiabsentdevice, 48 "Option to enable PLOGI to devices that are not present after " 49 "a Fabric scan. This is needed for several broken switches." 50 "Default is 0 - no PLOGI. 1 - perfom PLOGI."); 51 52 int ql2xloginretrycount = 0; 53 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR); 54 MODULE_PARM_DESC(ql2xloginretrycount, 55 "Specify an alternate value for the NVRAM login retry count."); 56 57 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) 58 int ql2xfwloadflash; 59 module_param(ql2xfwloadflash, int, S_IRUGO|S_IRUSR); 60 MODULE_PARM_DESC(ql2xfwloadflash, 61 "Load ISP24xx firmware image from FLASH (onboard memory)."); 62 #endif 63 64 static void qla2x00_free_device(scsi_qla_host_t *); 65 66 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha); 67 68 int ql2xfdmienable; 69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR); 70 MODULE_PARM_DESC(ql2xfdmienable, 71 "Enables FDMI registratons " 72 "Default is 0 - no FDMI. 1 - perfom FDMI."); 73 74 int ql2xprocessrscn; 75 module_param(ql2xprocessrscn, int, S_IRUGO|S_IRUSR); 76 MODULE_PARM_DESC(ql2xprocessrscn, 77 "Option to enable port RSCN handling via a series of less" 78 "fabric intrusive ADISCs and PLOGIs."); 79 80 /* 81 * SCSI host template entry points 82 */ 83 static int qla2xxx_slave_configure(struct scsi_device * device); 84 static int qla2xxx_slave_alloc(struct scsi_device *); 85 static void qla2xxx_slave_destroy(struct scsi_device *); 86 static int qla2x00_queuecommand(struct scsi_cmnd *cmd, 87 void (*fn)(struct scsi_cmnd *)); 88 static int qla24xx_queuecommand(struct scsi_cmnd *cmd, 89 void (*fn)(struct scsi_cmnd *)); 90 static int qla2xxx_eh_abort(struct scsi_cmnd *); 91 static int qla2xxx_eh_device_reset(struct scsi_cmnd *); 92 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *); 93 static int qla2xxx_eh_host_reset(struct scsi_cmnd *); 94 static int qla2x00_loop_reset(scsi_qla_host_t *ha); 95 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *); 96 97 static int qla2x00_change_queue_depth(struct scsi_device *, int); 98 static int qla2x00_change_queue_type(struct scsi_device *, int); 99 100 static struct scsi_host_template qla2x00_driver_template = { 101 .module = THIS_MODULE, 102 .name = "qla2xxx", 103 .queuecommand = qla2x00_queuecommand, 104 105 .eh_abort_handler = qla2xxx_eh_abort, 106 .eh_device_reset_handler = qla2xxx_eh_device_reset, 107 .eh_bus_reset_handler = qla2xxx_eh_bus_reset, 108 .eh_host_reset_handler = qla2xxx_eh_host_reset, 109 110 .slave_configure = qla2xxx_slave_configure, 111 112 .slave_alloc = qla2xxx_slave_alloc, 113 .slave_destroy = qla2xxx_slave_destroy, 114 .change_queue_depth = qla2x00_change_queue_depth, 115 .change_queue_type = qla2x00_change_queue_type, 116 .this_id = -1, 117 .cmd_per_lun = 3, 118 .use_clustering = ENABLE_CLUSTERING, 119 .sg_tablesize = SG_ALL, 120 121 /* 122 * The RISC allows for each command to transfer (2^32-1) bytes of data, 123 * which equates to 0x800000 sectors. 124 */ 125 .max_sectors = 0xFFFF, 126 .shost_attrs = qla2x00_host_attrs, 127 }; 128 129 static struct scsi_host_template qla24xx_driver_template = { 130 .module = THIS_MODULE, 131 .name = "qla2xxx", 132 .queuecommand = qla24xx_queuecommand, 133 134 .eh_abort_handler = qla2xxx_eh_abort, 135 .eh_device_reset_handler = qla2xxx_eh_device_reset, 136 .eh_bus_reset_handler = qla2xxx_eh_bus_reset, 137 .eh_host_reset_handler = qla2xxx_eh_host_reset, 138 139 .slave_configure = qla2xxx_slave_configure, 140 141 .slave_alloc = qla2xxx_slave_alloc, 142 .slave_destroy = qla2xxx_slave_destroy, 143 .change_queue_depth = qla2x00_change_queue_depth, 144 .change_queue_type = qla2x00_change_queue_type, 145 .this_id = -1, 146 .cmd_per_lun = 3, 147 .use_clustering = ENABLE_CLUSTERING, 148 .sg_tablesize = SG_ALL, 149 150 .max_sectors = 0xFFFF, 151 .shost_attrs = qla2x00_host_attrs, 152 }; 153 154 static struct scsi_transport_template *qla2xxx_transport_template = NULL; 155 156 /* TODO Convert to inlines 157 * 158 * Timer routines 159 */ 160 #define WATCH_INTERVAL 1 /* number of seconds */ 161 162 static void qla2x00_timer(scsi_qla_host_t *); 163 164 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *, 165 void *, unsigned long); 166 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long); 167 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *); 168 169 static inline void 170 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval) 171 { 172 init_timer(&ha->timer); 173 ha->timer.expires = jiffies + interval * HZ; 174 ha->timer.data = (unsigned long)ha; 175 ha->timer.function = (void (*)(unsigned long))func; 176 add_timer(&ha->timer); 177 ha->timer_active = 1; 178 } 179 180 static inline void 181 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval) 182 { 183 mod_timer(&ha->timer, jiffies + interval * HZ); 184 } 185 186 static __inline__ void 187 qla2x00_stop_timer(scsi_qla_host_t *ha) 188 { 189 del_timer_sync(&ha->timer); 190 ha->timer_active = 0; 191 } 192 193 static int qla2x00_do_dpc(void *data); 194 195 static void qla2x00_rst_aen(scsi_qla_host_t *); 196 197 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *); 198 static void qla2x00_mem_free(scsi_qla_host_t *ha); 199 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha); 200 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha); 201 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *); 202 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *); 203 204 /* -------------------------------------------------------------------------- */ 205 206 static char * 207 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str) 208 { 209 static char *pci_bus_modes[] = { 210 "33", "66", "100", "133", 211 }; 212 uint16_t pci_bus; 213 214 strcpy(str, "PCI"); 215 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9; 216 if (pci_bus) { 217 strcat(str, "-X ("); 218 strcat(str, pci_bus_modes[pci_bus]); 219 } else { 220 pci_bus = (ha->pci_attr & BIT_8) >> 8; 221 strcat(str, " ("); 222 strcat(str, pci_bus_modes[pci_bus]); 223 } 224 strcat(str, " MHz)"); 225 226 return (str); 227 } 228 229 static char * 230 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str) 231 { 232 static char *pci_bus_modes[] = { "33", "66", "100", "133", }; 233 uint32_t pci_bus; 234 int pcie_reg; 235 236 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP); 237 if (pcie_reg) { 238 char lwstr[6]; 239 uint16_t pcie_lstat, lspeed, lwidth; 240 241 pcie_reg += 0x12; 242 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat); 243 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3); 244 lwidth = (pcie_lstat & 245 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4; 246 247 strcpy(str, "PCIe ("); 248 if (lspeed == 1) 249 strcat(str, "2.5Gb/s "); 250 else 251 strcat(str, "<unknown> "); 252 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth); 253 strcat(str, lwstr); 254 255 return str; 256 } 257 258 strcpy(str, "PCI"); 259 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8; 260 if (pci_bus == 0 || pci_bus == 8) { 261 strcat(str, " ("); 262 strcat(str, pci_bus_modes[pci_bus >> 3]); 263 } else { 264 strcat(str, "-X "); 265 if (pci_bus & BIT_2) 266 strcat(str, "Mode 2"); 267 else 268 strcat(str, "Mode 1"); 269 strcat(str, " ("); 270 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]); 271 } 272 strcat(str, " MHz)"); 273 274 return str; 275 } 276 277 char * 278 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str) 279 { 280 char un_str[10]; 281 282 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, 283 ha->fw_minor_version, 284 ha->fw_subminor_version); 285 286 if (ha->fw_attributes & BIT_9) { 287 strcat(str, "FLX"); 288 return (str); 289 } 290 291 switch (ha->fw_attributes & 0xFF) { 292 case 0x7: 293 strcat(str, "EF"); 294 break; 295 case 0x17: 296 strcat(str, "TP"); 297 break; 298 case 0x37: 299 strcat(str, "IP"); 300 break; 301 case 0x77: 302 strcat(str, "VI"); 303 break; 304 default: 305 sprintf(un_str, "(%x)", ha->fw_attributes); 306 strcat(str, un_str); 307 break; 308 } 309 if (ha->fw_attributes & 0x100) 310 strcat(str, "X"); 311 312 return (str); 313 } 314 315 char * 316 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str) 317 { 318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, 319 ha->fw_minor_version, 320 ha->fw_subminor_version); 321 322 if (ha->fw_attributes & BIT_0) 323 strcat(str, "[Class 2] "); 324 if (ha->fw_attributes & BIT_1) 325 strcat(str, "[IP] "); 326 if (ha->fw_attributes & BIT_2) 327 strcat(str, "[Multi-ID] "); 328 if (ha->fw_attributes & BIT_13) 329 strcat(str, "[Experimental]"); 330 return str; 331 } 332 333 static inline srb_t * 334 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport, 335 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) 336 { 337 srb_t *sp; 338 339 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 340 if (!sp) 341 return sp; 342 343 atomic_set(&sp->ref_count, 1); 344 sp->ha = ha; 345 sp->fcport = fcport; 346 sp->cmd = cmd; 347 sp->flags = 0; 348 CMD_SP(cmd) = (void *)sp; 349 cmd->scsi_done = done; 350 351 return sp; 352 } 353 354 static int 355 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) 356 { 357 scsi_qla_host_t *ha = to_qla_host(cmd->device->host); 358 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; 359 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device)); 360 srb_t *sp; 361 int rval; 362 363 rval = fc_remote_port_chkready(rport); 364 if (rval) { 365 cmd->result = rval; 366 goto qc_fail_command; 367 } 368 369 /* Close window on fcport/rport state-transitioning. */ 370 if (!*(fc_port_t **)rport->dd_data) { 371 cmd->result = DID_IMM_RETRY << 16; 372 goto qc_fail_command; 373 } 374 375 if (atomic_read(&fcport->state) != FCS_ONLINE) { 376 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || 377 atomic_read(&ha->loop_state) == LOOP_DEAD) { 378 cmd->result = DID_NO_CONNECT << 16; 379 goto qc_fail_command; 380 } 381 goto qc_host_busy; 382 } 383 384 spin_unlock_irq(ha->host->host_lock); 385 386 sp = qla2x00_get_new_sp(ha, fcport, cmd, done); 387 if (!sp) 388 goto qc_host_busy_lock; 389 390 rval = qla2x00_start_scsi(sp); 391 if (rval != QLA_SUCCESS) 392 goto qc_host_busy_free_sp; 393 394 spin_lock_irq(ha->host->host_lock); 395 396 return 0; 397 398 qc_host_busy_free_sp: 399 qla2x00_sp_free_dma(ha, sp); 400 mempool_free(sp, ha->srb_mempool); 401 402 qc_host_busy_lock: 403 spin_lock_irq(ha->host->host_lock); 404 405 qc_host_busy: 406 return SCSI_MLQUEUE_HOST_BUSY; 407 408 qc_fail_command: 409 done(cmd); 410 411 return 0; 412 } 413 414 415 static int 416 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) 417 { 418 scsi_qla_host_t *ha = to_qla_host(cmd->device->host); 419 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; 420 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device)); 421 srb_t *sp; 422 int rval; 423 424 rval = fc_remote_port_chkready(rport); 425 if (rval) { 426 cmd->result = rval; 427 goto qc24_fail_command; 428 } 429 430 /* Close window on fcport/rport state-transitioning. */ 431 if (!*(fc_port_t **)rport->dd_data) { 432 cmd->result = DID_IMM_RETRY << 16; 433 goto qc24_fail_command; 434 } 435 436 if (atomic_read(&fcport->state) != FCS_ONLINE) { 437 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || 438 atomic_read(&ha->loop_state) == LOOP_DEAD) { 439 cmd->result = DID_NO_CONNECT << 16; 440 goto qc24_fail_command; 441 } 442 goto qc24_host_busy; 443 } 444 445 spin_unlock_irq(ha->host->host_lock); 446 447 sp = qla2x00_get_new_sp(ha, fcport, cmd, done); 448 if (!sp) 449 goto qc24_host_busy_lock; 450 451 rval = qla24xx_start_scsi(sp); 452 if (rval != QLA_SUCCESS) 453 goto qc24_host_busy_free_sp; 454 455 spin_lock_irq(ha->host->host_lock); 456 457 return 0; 458 459 qc24_host_busy_free_sp: 460 qla2x00_sp_free_dma(ha, sp); 461 mempool_free(sp, ha->srb_mempool); 462 463 qc24_host_busy_lock: 464 spin_lock_irq(ha->host->host_lock); 465 466 qc24_host_busy: 467 return SCSI_MLQUEUE_HOST_BUSY; 468 469 qc24_fail_command: 470 done(cmd); 471 472 return 0; 473 } 474 475 476 /* 477 * qla2x00_eh_wait_on_command 478 * Waits for the command to be returned by the Firmware for some 479 * max time. 480 * 481 * Input: 482 * ha = actual ha whose done queue will contain the command 483 * returned by firmware. 484 * cmd = Scsi Command to wait on. 485 * flag = Abort/Reset(Bus or Device Reset) 486 * 487 * Return: 488 * Not Found : 0 489 * Found : 1 490 */ 491 static int 492 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd) 493 { 494 #define ABORT_POLLING_PERIOD 1000 495 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD)) 496 unsigned long wait_iter = ABORT_WAIT_ITER; 497 int ret = QLA_SUCCESS; 498 499 while (CMD_SP(cmd)) { 500 msleep(ABORT_POLLING_PERIOD); 501 502 if (--wait_iter) 503 break; 504 } 505 if (CMD_SP(cmd)) 506 ret = QLA_FUNCTION_FAILED; 507 508 return ret; 509 } 510 511 /* 512 * qla2x00_wait_for_hba_online 513 * Wait till the HBA is online after going through 514 * <= MAX_RETRIES_OF_ISP_ABORT or 515 * finally HBA is disabled ie marked offline 516 * 517 * Input: 518 * ha - pointer to host adapter structure 519 * 520 * Note: 521 * Does context switching-Release SPIN_LOCK 522 * (if any) before calling this routine. 523 * 524 * Return: 525 * Success (Adapter is online) : 0 526 * Failed (Adapter is offline/disabled) : 1 527 */ 528 int 529 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha) 530 { 531 int return_status; 532 unsigned long wait_online; 533 534 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ); 535 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) || 536 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || 537 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) || 538 ha->dpc_active) && time_before(jiffies, wait_online)) { 539 540 msleep(1000); 541 } 542 if (ha->flags.online) 543 return_status = QLA_SUCCESS; 544 else 545 return_status = QLA_FUNCTION_FAILED; 546 547 DEBUG2(printk("%s return_status=%d\n",__func__,return_status)); 548 549 return (return_status); 550 } 551 552 /* 553 * qla2x00_wait_for_loop_ready 554 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop 555 * to be in LOOP_READY state. 556 * Input: 557 * ha - pointer to host adapter structure 558 * 559 * Note: 560 * Does context switching-Release SPIN_LOCK 561 * (if any) before calling this routine. 562 * 563 * 564 * Return: 565 * Success (LOOP_READY) : 0 566 * Failed (LOOP_NOT_READY) : 1 567 */ 568 static inline int 569 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha) 570 { 571 int return_status = QLA_SUCCESS; 572 unsigned long loop_timeout ; 573 574 /* wait for 5 min at the max for loop to be ready */ 575 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ); 576 577 while ((!atomic_read(&ha->loop_down_timer) && 578 atomic_read(&ha->loop_state) == LOOP_DOWN) || 579 atomic_read(&ha->loop_state) != LOOP_READY) { 580 msleep(1000); 581 if (time_after_eq(jiffies, loop_timeout)) { 582 return_status = QLA_FUNCTION_FAILED; 583 break; 584 } 585 } 586 return (return_status); 587 } 588 589 /************************************************************************** 590 * qla2xxx_eh_abort 591 * 592 * Description: 593 * The abort function will abort the specified command. 594 * 595 * Input: 596 * cmd = Linux SCSI command packet to be aborted. 597 * 598 * Returns: 599 * Either SUCCESS or FAILED. 600 * 601 * Note: 602 **************************************************************************/ 603 int 604 qla2xxx_eh_abort(struct scsi_cmnd *cmd) 605 { 606 scsi_qla_host_t *ha = to_qla_host(cmd->device->host); 607 srb_t *sp; 608 int ret, i; 609 unsigned int id, lun; 610 unsigned long serial; 611 unsigned long flags; 612 613 if (!CMD_SP(cmd)) 614 return FAILED; 615 616 ret = FAILED; 617 618 id = cmd->device->id; 619 lun = cmd->device->lun; 620 serial = cmd->serial_number; 621 622 /* Check active list for command command. */ 623 spin_lock_irqsave(&ha->hardware_lock, flags); 624 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) { 625 sp = ha->outstanding_cmds[i]; 626 627 if (sp == NULL) 628 continue; 629 630 if (sp->cmd != cmd) 631 continue; 632 633 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld " 634 "sp->state=%x\n", __func__, ha->host_no, sp, serial, 635 sp->state)); 636 DEBUG3(qla2x00_print_scsi_cmd(cmd);) 637 638 spin_unlock_irqrestore(&ha->hardware_lock, flags); 639 if (ha->isp_ops.abort_command(ha, sp)) { 640 DEBUG2(printk("%s(%ld): abort_command " 641 "mbx failed.\n", __func__, ha->host_no)); 642 } else { 643 DEBUG3(printk("%s(%ld): abort_command " 644 "mbx success.\n", __func__, ha->host_no)); 645 ret = SUCCESS; 646 } 647 spin_lock_irqsave(&ha->hardware_lock, flags); 648 649 break; 650 } 651 spin_unlock_irqrestore(&ha->hardware_lock, flags); 652 653 /* Wait for the command to be returned. */ 654 if (ret == SUCCESS) { 655 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) { 656 qla_printk(KERN_ERR, ha, 657 "scsi(%ld:%d:%d): Abort handler timed out -- %lx " 658 "%x.\n", ha->host_no, id, lun, serial, ret); 659 } 660 } 661 662 qla_printk(KERN_INFO, ha, 663 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no, 664 id, lun, serial, ret); 665 666 return ret; 667 } 668 669 /************************************************************************** 670 * qla2x00_eh_wait_for_pending_target_commands 671 * 672 * Description: 673 * Waits for all the commands to come back from the specified target. 674 * 675 * Input: 676 * ha - pointer to scsi_qla_host structure. 677 * t - target 678 * Returns: 679 * Either SUCCESS or FAILED. 680 * 681 * Note: 682 **************************************************************************/ 683 static int 684 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t) 685 { 686 int cnt; 687 int status; 688 srb_t *sp; 689 struct scsi_cmnd *cmd; 690 unsigned long flags; 691 692 status = 0; 693 694 /* 695 * Waiting for all commands for the designated target in the active 696 * array 697 */ 698 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 699 spin_lock_irqsave(&ha->hardware_lock, flags); 700 sp = ha->outstanding_cmds[cnt]; 701 if (sp) { 702 cmd = sp->cmd; 703 spin_unlock_irqrestore(&ha->hardware_lock, flags); 704 if (cmd->device->id == t) { 705 if (!qla2x00_eh_wait_on_command(ha, cmd)) { 706 status = 1; 707 break; 708 } 709 } 710 } else { 711 spin_unlock_irqrestore(&ha->hardware_lock, flags); 712 } 713 } 714 return (status); 715 } 716 717 718 /************************************************************************** 719 * qla2xxx_eh_device_reset 720 * 721 * Description: 722 * The device reset function will reset the target and abort any 723 * executing commands. 724 * 725 * NOTE: The use of SP is undefined within this context. Do *NOT* 726 * attempt to use this value, even if you determine it is 727 * non-null. 728 * 729 * Input: 730 * cmd = Linux SCSI command packet of the command that cause the 731 * bus device reset. 732 * 733 * Returns: 734 * SUCCESS/FAILURE (defined as macro in scsi.h). 735 * 736 **************************************************************************/ 737 int 738 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) 739 { 740 scsi_qla_host_t *ha = to_qla_host(cmd->device->host); 741 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; 742 srb_t *sp; 743 int ret; 744 unsigned int id, lun; 745 unsigned long serial; 746 747 ret = FAILED; 748 749 id = cmd->device->id; 750 lun = cmd->device->lun; 751 serial = cmd->serial_number; 752 753 sp = (srb_t *) CMD_SP(cmd); 754 if (!sp || !fcport) 755 return ret; 756 757 qla_printk(KERN_INFO, ha, 758 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun); 759 760 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) 761 goto eh_dev_reset_done; 762 763 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { 764 if (qla2x00_device_reset(ha, fcport) == 0) 765 ret = SUCCESS; 766 767 #if defined(LOGOUT_AFTER_DEVICE_RESET) 768 if (ret == SUCCESS) { 769 if (fcport->flags & FC_FABRIC_DEVICE) { 770 ha->isp_ops.fabric_logout(ha, fcport->loop_id); 771 qla2x00_mark_device_lost(ha, fcport, 0, 0); 772 } 773 } 774 #endif 775 } else { 776 DEBUG2(printk(KERN_INFO 777 "%s failed: loop not ready\n",__func__);) 778 } 779 780 if (ret == FAILED) { 781 DEBUG3(printk("%s(%ld): device reset failed\n", 782 __func__, ha->host_no)); 783 qla_printk(KERN_INFO, ha, "%s: device reset failed\n", 784 __func__); 785 786 goto eh_dev_reset_done; 787 } 788 789 /* Flush outstanding commands. */ 790 if (qla2x00_eh_wait_for_pending_target_commands(ha, id)) 791 ret = FAILED; 792 if (ret == FAILED) { 793 DEBUG3(printk("%s(%ld): failed while waiting for commands\n", 794 __func__, ha->host_no)); 795 qla_printk(KERN_INFO, ha, 796 "%s: failed while waiting for commands\n", __func__); 797 } else 798 qla_printk(KERN_INFO, ha, 799 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no, 800 id, lun); 801 eh_dev_reset_done: 802 return ret; 803 } 804 805 /************************************************************************** 806 * qla2x00_eh_wait_for_pending_commands 807 * 808 * Description: 809 * Waits for all the commands to come back from the specified host. 810 * 811 * Input: 812 * ha - pointer to scsi_qla_host structure. 813 * 814 * Returns: 815 * 1 : SUCCESS 816 * 0 : FAILED 817 * 818 * Note: 819 **************************************************************************/ 820 static int 821 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha) 822 { 823 int cnt; 824 int status; 825 srb_t *sp; 826 struct scsi_cmnd *cmd; 827 unsigned long flags; 828 829 status = 1; 830 831 /* 832 * Waiting for all commands for the designated target in the active 833 * array 834 */ 835 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 836 spin_lock_irqsave(&ha->hardware_lock, flags); 837 sp = ha->outstanding_cmds[cnt]; 838 if (sp) { 839 cmd = sp->cmd; 840 spin_unlock_irqrestore(&ha->hardware_lock, flags); 841 status = qla2x00_eh_wait_on_command(ha, cmd); 842 if (status == 0) 843 break; 844 } 845 else { 846 spin_unlock_irqrestore(&ha->hardware_lock, flags); 847 } 848 } 849 return (status); 850 } 851 852 853 /************************************************************************** 854 * qla2xxx_eh_bus_reset 855 * 856 * Description: 857 * The bus reset function will reset the bus and abort any executing 858 * commands. 859 * 860 * Input: 861 * cmd = Linux SCSI command packet of the command that cause the 862 * bus reset. 863 * 864 * Returns: 865 * SUCCESS/FAILURE (defined as macro in scsi.h). 866 * 867 **************************************************************************/ 868 int 869 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) 870 { 871 scsi_qla_host_t *ha = to_qla_host(cmd->device->host); 872 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; 873 srb_t *sp; 874 int ret; 875 unsigned int id, lun; 876 unsigned long serial; 877 878 ret = FAILED; 879 880 id = cmd->device->id; 881 lun = cmd->device->lun; 882 serial = cmd->serial_number; 883 884 sp = (srb_t *) CMD_SP(cmd); 885 if (!sp || !fcport) 886 return ret; 887 888 qla_printk(KERN_INFO, ha, 889 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun); 890 891 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) { 892 DEBUG2(printk("%s failed:board disabled\n",__func__)); 893 goto eh_bus_reset_done; 894 } 895 896 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { 897 if (qla2x00_loop_reset(ha) == QLA_SUCCESS) 898 ret = SUCCESS; 899 } 900 if (ret == FAILED) 901 goto eh_bus_reset_done; 902 903 /* Flush outstanding commands. */ 904 if (!qla2x00_eh_wait_for_pending_commands(ha)) 905 ret = FAILED; 906 907 eh_bus_reset_done: 908 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, 909 (ret == FAILED) ? "failed" : "succeded"); 910 911 return ret; 912 } 913 914 /************************************************************************** 915 * qla2xxx_eh_host_reset 916 * 917 * Description: 918 * The reset function will reset the Adapter. 919 * 920 * Input: 921 * cmd = Linux SCSI command packet of the command that cause the 922 * adapter reset. 923 * 924 * Returns: 925 * Either SUCCESS or FAILED. 926 * 927 * Note: 928 **************************************************************************/ 929 int 930 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) 931 { 932 scsi_qla_host_t *ha = to_qla_host(cmd->device->host); 933 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; 934 srb_t *sp; 935 int ret; 936 unsigned int id, lun; 937 unsigned long serial; 938 939 ret = FAILED; 940 941 id = cmd->device->id; 942 lun = cmd->device->lun; 943 serial = cmd->serial_number; 944 945 sp = (srb_t *) CMD_SP(cmd); 946 if (!sp || !fcport) 947 return ret; 948 949 qla_printk(KERN_INFO, ha, 950 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun); 951 952 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) 953 goto eh_host_reset_lock; 954 955 /* 956 * Fixme-may be dpc thread is active and processing 957 * loop_resync,so wait a while for it to 958 * be completed and then issue big hammer.Otherwise 959 * it may cause I/O failure as big hammer marks the 960 * devices as lost kicking of the port_down_timer 961 * while dpc is stuck for the mailbox to complete. 962 */ 963 qla2x00_wait_for_loop_ready(ha); 964 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); 965 if (qla2x00_abort_isp(ha)) { 966 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); 967 /* failed. schedule dpc to try */ 968 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 969 970 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) 971 goto eh_host_reset_lock; 972 } 973 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); 974 975 /* Waiting for our command in done_queue to be returned to OS.*/ 976 if (qla2x00_eh_wait_for_pending_commands(ha)) 977 ret = SUCCESS; 978 979 eh_host_reset_lock: 980 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, 981 (ret == FAILED) ? "failed" : "succeded"); 982 983 return ret; 984 } 985 986 /* 987 * qla2x00_loop_reset 988 * Issue loop reset. 989 * 990 * Input: 991 * ha = adapter block pointer. 992 * 993 * Returns: 994 * 0 = success 995 */ 996 static int 997 qla2x00_loop_reset(scsi_qla_host_t *ha) 998 { 999 int status = QLA_SUCCESS; 1000 struct fc_port *fcport; 1001 1002 if (ha->flags.enable_lip_reset) { 1003 status = qla2x00_lip_reset(ha); 1004 } 1005 1006 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) { 1007 list_for_each_entry(fcport, &ha->fcports, list) { 1008 if (fcport->port_type != FCT_TARGET) 1009 continue; 1010 1011 status = qla2x00_device_reset(ha, fcport); 1012 if (status != QLA_SUCCESS) 1013 break; 1014 } 1015 } 1016 1017 if (status == QLA_SUCCESS && 1018 ((!ha->flags.enable_target_reset && 1019 !ha->flags.enable_lip_reset) || 1020 ha->flags.enable_lip_full_login)) { 1021 1022 status = qla2x00_full_login_lip(ha); 1023 } 1024 1025 /* Issue marker command only when we are going to start the I/O */ 1026 ha->marker_needed = 1; 1027 1028 if (status) { 1029 /* Empty */ 1030 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n", 1031 __func__, 1032 ha->host_no);) 1033 } else { 1034 /* Empty */ 1035 DEBUG3(printk("%s(%ld): exiting normally.\n", 1036 __func__, 1037 ha->host_no);) 1038 } 1039 1040 return(status); 1041 } 1042 1043 /* 1044 * qla2x00_device_reset 1045 * Issue bus device reset message to the target. 1046 * 1047 * Input: 1048 * ha = adapter block pointer. 1049 * t = SCSI ID. 1050 * TARGET_QUEUE_LOCK must be released. 1051 * ADAPTER_STATE_LOCK must be released. 1052 * 1053 * Context: 1054 * Kernel context. 1055 */ 1056 static int 1057 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport) 1058 { 1059 /* Abort Target command will clear Reservation */ 1060 return ha->isp_ops.abort_target(reset_fcport); 1061 } 1062 1063 static int 1064 qla2xxx_slave_alloc(struct scsi_device *sdev) 1065 { 1066 struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); 1067 1068 if (!rport || fc_remote_port_chkready(rport)) 1069 return -ENXIO; 1070 1071 sdev->hostdata = *(fc_port_t **)rport->dd_data; 1072 1073 return 0; 1074 } 1075 1076 static int 1077 qla2xxx_slave_configure(struct scsi_device *sdev) 1078 { 1079 scsi_qla_host_t *ha = to_qla_host(sdev->host); 1080 struct fc_rport *rport = starget_to_rport(sdev->sdev_target); 1081 1082 if (sdev->tagged_supported) 1083 scsi_activate_tcq(sdev, 32); 1084 else 1085 scsi_deactivate_tcq(sdev, 32); 1086 1087 rport->dev_loss_tmo = ha->port_down_retry_count + 5; 1088 1089 return 0; 1090 } 1091 1092 static void 1093 qla2xxx_slave_destroy(struct scsi_device *sdev) 1094 { 1095 sdev->hostdata = NULL; 1096 } 1097 1098 static int 1099 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth) 1100 { 1101 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 1102 return sdev->queue_depth; 1103 } 1104 1105 static int 1106 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type) 1107 { 1108 if (sdev->tagged_supported) { 1109 scsi_set_tag_type(sdev, tag_type); 1110 if (tag_type) 1111 scsi_activate_tcq(sdev, sdev->queue_depth); 1112 else 1113 scsi_deactivate_tcq(sdev, sdev->queue_depth); 1114 } else 1115 tag_type = 0; 1116 1117 return tag_type; 1118 } 1119 1120 /** 1121 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method. 1122 * @ha: HA context 1123 * 1124 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 1125 * supported addressing method. 1126 */ 1127 static void 1128 qla2x00_config_dma_addressing(scsi_qla_host_t *ha) 1129 { 1130 /* Assume a 32bit DMA mask. */ 1131 ha->flags.enable_64bit_addressing = 0; 1132 1133 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) { 1134 /* Any upper-dword bits set? */ 1135 if (MSD(dma_get_required_mask(&ha->pdev->dev)) && 1136 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) { 1137 /* Ok, a 64bit DMA mask is applicable. */ 1138 ha->flags.enable_64bit_addressing = 1; 1139 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64; 1140 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64; 1141 return; 1142 } 1143 } 1144 1145 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK); 1146 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK); 1147 } 1148 1149 static inline void 1150 qla2x00_set_isp_flags(scsi_qla_host_t *ha) 1151 { 1152 ha->device_type = DT_EXTENDED_IDS; 1153 switch (ha->pdev->device) { 1154 case PCI_DEVICE_ID_QLOGIC_ISP2100: 1155 ha->device_type |= DT_ISP2100; 1156 ha->device_type &= ~DT_EXTENDED_IDS; 1157 break; 1158 case PCI_DEVICE_ID_QLOGIC_ISP2200: 1159 ha->device_type |= DT_ISP2200; 1160 ha->device_type &= ~DT_EXTENDED_IDS; 1161 break; 1162 case PCI_DEVICE_ID_QLOGIC_ISP2300: 1163 ha->device_type |= DT_ISP2300; 1164 ha->device_type |= DT_ZIO_SUPPORTED; 1165 break; 1166 case PCI_DEVICE_ID_QLOGIC_ISP2312: 1167 ha->device_type |= DT_ISP2312; 1168 ha->device_type |= DT_ZIO_SUPPORTED; 1169 break; 1170 case PCI_DEVICE_ID_QLOGIC_ISP2322: 1171 ha->device_type |= DT_ISP2322; 1172 ha->device_type |= DT_ZIO_SUPPORTED; 1173 if (ha->pdev->subsystem_vendor == 0x1028 && 1174 ha->pdev->subsystem_device == 0x0170) 1175 ha->device_type |= DT_OEM_001; 1176 break; 1177 case PCI_DEVICE_ID_QLOGIC_ISP6312: 1178 ha->device_type |= DT_ISP6312; 1179 break; 1180 case PCI_DEVICE_ID_QLOGIC_ISP6322: 1181 ha->device_type |= DT_ISP6322; 1182 break; 1183 case PCI_DEVICE_ID_QLOGIC_ISP2422: 1184 ha->device_type |= DT_ISP2422; 1185 ha->device_type |= DT_ZIO_SUPPORTED; 1186 break; 1187 case PCI_DEVICE_ID_QLOGIC_ISP2432: 1188 ha->device_type |= DT_ISP2432; 1189 ha->device_type |= DT_ZIO_SUPPORTED; 1190 break; 1191 case PCI_DEVICE_ID_QLOGIC_ISP5422: 1192 ha->device_type |= DT_ISP5422; 1193 break; 1194 case PCI_DEVICE_ID_QLOGIC_ISP5432: 1195 ha->device_type |= DT_ISP5432; 1196 break; 1197 } 1198 } 1199 1200 static int 1201 qla2x00_iospace_config(scsi_qla_host_t *ha) 1202 { 1203 unsigned long pio, pio_len, pio_flags; 1204 unsigned long mmio, mmio_len, mmio_flags; 1205 1206 /* We only need PIO for Flash operations on ISP2312 v2 chips. */ 1207 pio = pci_resource_start(ha->pdev, 0); 1208 pio_len = pci_resource_len(ha->pdev, 0); 1209 pio_flags = pci_resource_flags(ha->pdev, 0); 1210 if (pio_flags & IORESOURCE_IO) { 1211 if (pio_len < MIN_IOBASE_LEN) { 1212 qla_printk(KERN_WARNING, ha, 1213 "Invalid PCI I/O region size (%s)...\n", 1214 pci_name(ha->pdev)); 1215 pio = 0; 1216 } 1217 } else { 1218 qla_printk(KERN_WARNING, ha, 1219 "region #0 not a PIO resource (%s)...\n", 1220 pci_name(ha->pdev)); 1221 pio = 0; 1222 } 1223 1224 /* Use MMIO operations for all accesses. */ 1225 mmio = pci_resource_start(ha->pdev, 1); 1226 mmio_len = pci_resource_len(ha->pdev, 1); 1227 mmio_flags = pci_resource_flags(ha->pdev, 1); 1228 1229 if (!(mmio_flags & IORESOURCE_MEM)) { 1230 qla_printk(KERN_ERR, ha, 1231 "region #0 not an MMIO resource (%s), aborting\n", 1232 pci_name(ha->pdev)); 1233 goto iospace_error_exit; 1234 } 1235 if (mmio_len < MIN_IOBASE_LEN) { 1236 qla_printk(KERN_ERR, ha, 1237 "Invalid PCI mem region size (%s), aborting\n", 1238 pci_name(ha->pdev)); 1239 goto iospace_error_exit; 1240 } 1241 1242 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) { 1243 qla_printk(KERN_WARNING, ha, 1244 "Failed to reserve PIO/MMIO regions (%s)\n", 1245 pci_name(ha->pdev)); 1246 1247 goto iospace_error_exit; 1248 } 1249 1250 ha->pio_address = pio; 1251 ha->pio_length = pio_len; 1252 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN); 1253 if (!ha->iobase) { 1254 qla_printk(KERN_ERR, ha, 1255 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev)); 1256 1257 goto iospace_error_exit; 1258 } 1259 1260 return (0); 1261 1262 iospace_error_exit: 1263 return (-ENOMEM); 1264 } 1265 1266 static void 1267 qla2x00_enable_intrs(scsi_qla_host_t *ha) 1268 { 1269 unsigned long flags = 0; 1270 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1271 1272 spin_lock_irqsave(&ha->hardware_lock, flags); 1273 ha->interrupts_on = 1; 1274 /* enable risc and host interrupts */ 1275 WRT_REG_WORD(®->ictrl, ICR_EN_INT | ICR_EN_RISC); 1276 RD_REG_WORD(®->ictrl); 1277 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1278 1279 } 1280 1281 static void 1282 qla2x00_disable_intrs(scsi_qla_host_t *ha) 1283 { 1284 unsigned long flags = 0; 1285 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1286 1287 spin_lock_irqsave(&ha->hardware_lock, flags); 1288 ha->interrupts_on = 0; 1289 /* disable risc and host interrupts */ 1290 WRT_REG_WORD(®->ictrl, 0); 1291 RD_REG_WORD(®->ictrl); 1292 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1293 } 1294 1295 static void 1296 qla24xx_enable_intrs(scsi_qla_host_t *ha) 1297 { 1298 unsigned long flags = 0; 1299 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1300 1301 spin_lock_irqsave(&ha->hardware_lock, flags); 1302 ha->interrupts_on = 1; 1303 WRT_REG_DWORD(®->ictrl, ICRX_EN_RISC_INT); 1304 RD_REG_DWORD(®->ictrl); 1305 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1306 } 1307 1308 static void 1309 qla24xx_disable_intrs(scsi_qla_host_t *ha) 1310 { 1311 unsigned long flags = 0; 1312 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1313 1314 spin_lock_irqsave(&ha->hardware_lock, flags); 1315 ha->interrupts_on = 0; 1316 WRT_REG_DWORD(®->ictrl, 0); 1317 RD_REG_DWORD(®->ictrl); 1318 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1319 } 1320 1321 /* 1322 * PCI driver interface 1323 */ 1324 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info) 1325 { 1326 int ret = -ENODEV; 1327 device_reg_t __iomem *reg; 1328 struct Scsi_Host *host; 1329 scsi_qla_host_t *ha; 1330 unsigned long flags = 0; 1331 unsigned long wait_switch = 0; 1332 char pci_info[20]; 1333 char fw_str[30]; 1334 fc_port_t *fcport; 1335 struct scsi_host_template *sht; 1336 1337 if (pci_enable_device(pdev)) 1338 goto probe_out; 1339 1340 sht = &qla2x00_driver_template; 1341 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 || 1342 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432) 1343 sht = &qla24xx_driver_template; 1344 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t)); 1345 if (host == NULL) { 1346 printk(KERN_WARNING 1347 "qla2xxx: Couldn't allocate host from scsi layer!\n"); 1348 goto probe_disable_device; 1349 } 1350 1351 /* Clear our data area */ 1352 ha = (scsi_qla_host_t *)host->hostdata; 1353 memset(ha, 0, sizeof(scsi_qla_host_t)); 1354 1355 ha->pdev = pdev; 1356 ha->host = host; 1357 ha->host_no = host->host_no; 1358 ha->brd_info = brd_info; 1359 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no); 1360 1361 /* Set ISP-type information. */ 1362 qla2x00_set_isp_flags(ha); 1363 1364 /* Configure PCI I/O space */ 1365 ret = qla2x00_iospace_config(ha); 1366 if (ret) 1367 goto probe_failed; 1368 1369 qla_printk(KERN_INFO, ha, 1370 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq, 1371 ha->iobase); 1372 1373 spin_lock_init(&ha->hardware_lock); 1374 1375 ha->prev_topology = 0; 1376 ha->ports = MAX_BUSES; 1377 ha->init_cb_size = sizeof(init_cb_t); 1378 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER; 1379 ha->link_data_rate = LDR_UNKNOWN; 1380 ha->optrom_size = OPTROM_SIZE_2300; 1381 1382 /* Assign ISP specific operations. */ 1383 ha->isp_ops.pci_config = qla2100_pci_config; 1384 ha->isp_ops.reset_chip = qla2x00_reset_chip; 1385 ha->isp_ops.chip_diag = qla2x00_chip_diag; 1386 ha->isp_ops.config_rings = qla2x00_config_rings; 1387 ha->isp_ops.reset_adapter = qla2x00_reset_adapter; 1388 ha->isp_ops.nvram_config = qla2x00_nvram_config; 1389 ha->isp_ops.update_fw_options = qla2x00_update_fw_options; 1390 ha->isp_ops.load_risc = qla2x00_load_risc; 1391 ha->isp_ops.pci_info_str = qla2x00_pci_info_str; 1392 ha->isp_ops.fw_version_str = qla2x00_fw_version_str; 1393 ha->isp_ops.intr_handler = qla2100_intr_handler; 1394 ha->isp_ops.enable_intrs = qla2x00_enable_intrs; 1395 ha->isp_ops.disable_intrs = qla2x00_disable_intrs; 1396 ha->isp_ops.abort_command = qla2x00_abort_command; 1397 ha->isp_ops.abort_target = qla2x00_abort_target; 1398 ha->isp_ops.fabric_login = qla2x00_login_fabric; 1399 ha->isp_ops.fabric_logout = qla2x00_fabric_logout; 1400 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32; 1401 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32; 1402 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb; 1403 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb; 1404 ha->isp_ops.read_nvram = qla2x00_read_nvram_data; 1405 ha->isp_ops.write_nvram = qla2x00_write_nvram_data; 1406 ha->isp_ops.fw_dump = qla2100_fw_dump; 1407 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump; 1408 ha->isp_ops.read_optrom = qla2x00_read_optrom_data; 1409 ha->isp_ops.write_optrom = qla2x00_write_optrom_data; 1410 if (IS_QLA2100(ha)) { 1411 host->max_id = MAX_TARGETS_2100; 1412 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100; 1413 ha->request_q_length = REQUEST_ENTRY_CNT_2100; 1414 ha->response_q_length = RESPONSE_ENTRY_CNT_2100; 1415 ha->last_loop_id = SNS_LAST_LOOP_ID_2100; 1416 host->sg_tablesize = 32; 1417 ha->gid_list_info_size = 4; 1418 } else if (IS_QLA2200(ha)) { 1419 host->max_id = MAX_TARGETS_2200; 1420 ha->mbx_count = MAILBOX_REGISTER_COUNT; 1421 ha->request_q_length = REQUEST_ENTRY_CNT_2200; 1422 ha->response_q_length = RESPONSE_ENTRY_CNT_2100; 1423 ha->last_loop_id = SNS_LAST_LOOP_ID_2100; 1424 ha->gid_list_info_size = 4; 1425 } else if (IS_QLA23XX(ha)) { 1426 host->max_id = MAX_TARGETS_2200; 1427 ha->mbx_count = MAILBOX_REGISTER_COUNT; 1428 ha->request_q_length = REQUEST_ENTRY_CNT_2200; 1429 ha->response_q_length = RESPONSE_ENTRY_CNT_2300; 1430 ha->last_loop_id = SNS_LAST_LOOP_ID_2300; 1431 ha->isp_ops.pci_config = qla2300_pci_config; 1432 ha->isp_ops.intr_handler = qla2300_intr_handler; 1433 ha->isp_ops.fw_dump = qla2300_fw_dump; 1434 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump; 1435 ha->isp_ops.beacon_on = qla2x00_beacon_on; 1436 ha->isp_ops.beacon_off = qla2x00_beacon_off; 1437 ha->isp_ops.beacon_blink = qla2x00_beacon_blink; 1438 ha->gid_list_info_size = 6; 1439 if (IS_QLA2322(ha) || IS_QLA6322(ha)) 1440 ha->optrom_size = OPTROM_SIZE_2322; 1441 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { 1442 host->max_id = MAX_TARGETS_2200; 1443 ha->mbx_count = MAILBOX_REGISTER_COUNT; 1444 ha->request_q_length = REQUEST_ENTRY_CNT_24XX; 1445 ha->response_q_length = RESPONSE_ENTRY_CNT_2300; 1446 ha->last_loop_id = SNS_LAST_LOOP_ID_2300; 1447 ha->init_cb_size = sizeof(struct init_cb_24xx); 1448 ha->mgmt_svr_loop_id = 10; 1449 ha->isp_ops.pci_config = qla24xx_pci_config; 1450 ha->isp_ops.reset_chip = qla24xx_reset_chip; 1451 ha->isp_ops.chip_diag = qla24xx_chip_diag; 1452 ha->isp_ops.config_rings = qla24xx_config_rings; 1453 ha->isp_ops.reset_adapter = qla24xx_reset_adapter; 1454 ha->isp_ops.nvram_config = qla24xx_nvram_config; 1455 ha->isp_ops.update_fw_options = qla24xx_update_fw_options; 1456 ha->isp_ops.load_risc = qla24xx_load_risc; 1457 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) 1458 if (ql2xfwloadflash) 1459 ha->isp_ops.load_risc = qla24xx_load_risc_flash; 1460 #endif 1461 ha->isp_ops.pci_info_str = qla24xx_pci_info_str; 1462 ha->isp_ops.fw_version_str = qla24xx_fw_version_str; 1463 ha->isp_ops.intr_handler = qla24xx_intr_handler; 1464 ha->isp_ops.enable_intrs = qla24xx_enable_intrs; 1465 ha->isp_ops.disable_intrs = qla24xx_disable_intrs; 1466 ha->isp_ops.abort_command = qla24xx_abort_command; 1467 ha->isp_ops.abort_target = qla24xx_abort_target; 1468 ha->isp_ops.fabric_login = qla24xx_login_fabric; 1469 ha->isp_ops.fabric_logout = qla24xx_fabric_logout; 1470 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb; 1471 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb; 1472 ha->isp_ops.read_nvram = qla24xx_read_nvram_data; 1473 ha->isp_ops.write_nvram = qla24xx_write_nvram_data; 1474 ha->isp_ops.fw_dump = qla24xx_fw_dump; 1475 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump; 1476 ha->isp_ops.read_optrom = qla24xx_read_optrom_data; 1477 ha->isp_ops.write_optrom = qla24xx_write_optrom_data; 1478 ha->isp_ops.beacon_on = qla24xx_beacon_on; 1479 ha->isp_ops.beacon_off = qla24xx_beacon_off; 1480 ha->isp_ops.beacon_blink = qla24xx_beacon_blink; 1481 ha->gid_list_info_size = 8; 1482 ha->optrom_size = OPTROM_SIZE_24XX; 1483 } 1484 host->can_queue = ha->request_q_length + 128; 1485 1486 /* load the F/W, read paramaters, and init the H/W */ 1487 ha->instance = num_hosts; 1488 1489 init_MUTEX(&ha->mbx_cmd_sem); 1490 init_MUTEX_LOCKED(&ha->mbx_intr_sem); 1491 1492 INIT_LIST_HEAD(&ha->list); 1493 INIT_LIST_HEAD(&ha->fcports); 1494 INIT_LIST_HEAD(&ha->rscn_fcports); 1495 1496 /* 1497 * These locks are used to prevent more than one CPU 1498 * from modifying the queue at the same time. The 1499 * higher level "host_lock" will reduce most 1500 * contention for these locks. 1501 */ 1502 spin_lock_init(&ha->mbx_reg_lock); 1503 1504 qla2x00_config_dma_addressing(ha); 1505 if (qla2x00_mem_alloc(ha)) { 1506 qla_printk(KERN_WARNING, ha, 1507 "[ERROR] Failed to allocate memory for adapter\n"); 1508 1509 ret = -ENOMEM; 1510 goto probe_failed; 1511 } 1512 1513 if (qla2x00_initialize_adapter(ha) && 1514 !(ha->device_flags & DFLG_NO_CABLE)) { 1515 1516 qla_printk(KERN_WARNING, ha, 1517 "Failed to initialize adapter\n"); 1518 1519 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - " 1520 "Adapter flags %x.\n", 1521 ha->host_no, ha->device_flags)); 1522 1523 ret = -ENODEV; 1524 goto probe_failed; 1525 } 1526 1527 /* 1528 * Startup the kernel thread for this host adapter 1529 */ 1530 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha, 1531 "%s_dpc", ha->host_str); 1532 if (IS_ERR(ha->dpc_thread)) { 1533 qla_printk(KERN_WARNING, ha, 1534 "Unable to start DPC thread!\n"); 1535 ret = PTR_ERR(ha->dpc_thread); 1536 goto probe_failed; 1537 } 1538 1539 host->this_id = 255; 1540 host->cmd_per_lun = 3; 1541 host->unique_id = ha->instance; 1542 host->max_cmd_len = MAX_CMDSZ; 1543 host->max_channel = ha->ports - 1; 1544 host->max_lun = MAX_LUNS; 1545 host->transportt = qla2xxx_transport_template; 1546 1547 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler, 1548 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha); 1549 if (ret) { 1550 qla_printk(KERN_WARNING, ha, 1551 "Failed to reserve interrupt %d already in use.\n", 1552 pdev->irq); 1553 goto probe_failed; 1554 } 1555 host->irq = pdev->irq; 1556 1557 /* Initialized the timer */ 1558 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL); 1559 1560 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n", 1561 ha->host_no, ha)); 1562 1563 ha->isp_ops.disable_intrs(ha); 1564 1565 spin_lock_irqsave(&ha->hardware_lock, flags); 1566 reg = ha->iobase; 1567 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { 1568 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); 1569 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); 1570 } else { 1571 WRT_REG_WORD(®->isp.semaphore, 0); 1572 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); 1573 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); 1574 1575 /* Enable proper parity */ 1576 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { 1577 if (IS_QLA2300(ha)) 1578 /* SRAM parity */ 1579 WRT_REG_WORD(®->isp.hccr, 1580 (HCCR_ENABLE_PARITY + 0x1)); 1581 else 1582 /* SRAM, Instruction RAM and GP RAM parity */ 1583 WRT_REG_WORD(®->isp.hccr, 1584 (HCCR_ENABLE_PARITY + 0x7)); 1585 } 1586 } 1587 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1588 1589 ha->isp_ops.enable_intrs(ha); 1590 1591 /* v2.19.5b6 */ 1592 /* 1593 * Wait around max loop_reset_delay secs for the devices to come 1594 * on-line. We don't want Linux scanning before we are ready. 1595 * 1596 */ 1597 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ); 1598 time_before(jiffies,wait_switch) && 1599 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES)) 1600 && (ha->device_flags & SWITCH_FOUND) ;) { 1601 1602 qla2x00_check_fabric_devices(ha); 1603 1604 msleep(10); 1605 } 1606 1607 pci_set_drvdata(pdev, ha); 1608 ha->flags.init_done = 1; 1609 num_hosts++; 1610 1611 ret = scsi_add_host(host, &pdev->dev); 1612 if (ret) 1613 goto probe_failed; 1614 1615 qla2x00_alloc_sysfs_attr(ha); 1616 1617 qla2x00_init_host_attr(ha); 1618 1619 qla_printk(KERN_INFO, ha, "\n" 1620 " QLogic Fibre Channel HBA Driver: %s\n" 1621 " QLogic %s - %s\n" 1622 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n", 1623 qla2x00_version_str, ha->model_number, 1624 ha->model_desc ? ha->model_desc: "", pdev->device, 1625 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev), 1626 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no, 1627 ha->isp_ops.fw_version_str(ha, fw_str)); 1628 1629 /* Go with fc_rport registration. */ 1630 list_for_each_entry(fcport, &ha->fcports, list) 1631 qla2x00_reg_remote_port(ha, fcport); 1632 1633 return 0; 1634 1635 probe_failed: 1636 qla2x00_free_device(ha); 1637 1638 scsi_host_put(host); 1639 1640 probe_disable_device: 1641 pci_disable_device(pdev); 1642 1643 probe_out: 1644 return ret; 1645 } 1646 EXPORT_SYMBOL_GPL(qla2x00_probe_one); 1647 1648 void qla2x00_remove_one(struct pci_dev *pdev) 1649 { 1650 scsi_qla_host_t *ha; 1651 1652 ha = pci_get_drvdata(pdev); 1653 1654 qla2x00_free_sysfs_attr(ha); 1655 1656 fc_remove_host(ha->host); 1657 1658 scsi_remove_host(ha->host); 1659 1660 qla2x00_free_device(ha); 1661 1662 scsi_host_put(ha->host); 1663 1664 pci_set_drvdata(pdev, NULL); 1665 } 1666 EXPORT_SYMBOL_GPL(qla2x00_remove_one); 1667 1668 static void 1669 qla2x00_free_device(scsi_qla_host_t *ha) 1670 { 1671 /* Abort any outstanding IO descriptors. */ 1672 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) 1673 qla2x00_cancel_io_descriptors(ha); 1674 1675 /* Disable timer */ 1676 if (ha->timer_active) 1677 qla2x00_stop_timer(ha); 1678 1679 /* Kill the kernel thread for this host */ 1680 if (ha->dpc_thread) { 1681 struct task_struct *t = ha->dpc_thread; 1682 1683 /* 1684 * qla2xxx_wake_dpc checks for ->dpc_thread 1685 * so we need to zero it out. 1686 */ 1687 ha->dpc_thread = NULL; 1688 kthread_stop(t); 1689 } 1690 1691 /* Stop currently executing firmware. */ 1692 qla2x00_stop_firmware(ha); 1693 1694 /* turn-off interrupts on the card */ 1695 if (ha->interrupts_on) 1696 ha->isp_ops.disable_intrs(ha); 1697 1698 qla2x00_mem_free(ha); 1699 1700 ha->flags.online = 0; 1701 1702 /* Detach interrupts */ 1703 if (ha->pdev->irq) 1704 free_irq(ha->pdev->irq, ha); 1705 1706 /* release io space registers */ 1707 if (ha->iobase) 1708 iounmap(ha->iobase); 1709 pci_release_regions(ha->pdev); 1710 1711 pci_disable_device(ha->pdev); 1712 } 1713 1714 static inline void 1715 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, 1716 int defer) 1717 { 1718 unsigned long flags; 1719 struct fc_rport *rport; 1720 1721 if (!fcport->rport) 1722 return; 1723 1724 rport = fcport->rport; 1725 if (defer) { 1726 spin_lock_irqsave(&fcport->rport_lock, flags); 1727 fcport->drport = rport; 1728 fcport->rport = NULL; 1729 *(fc_port_t **)rport->dd_data = NULL; 1730 spin_unlock_irqrestore(&fcport->rport_lock, flags); 1731 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); 1732 } else { 1733 spin_lock_irqsave(&fcport->rport_lock, flags); 1734 fcport->rport = NULL; 1735 *(fc_port_t **)rport->dd_data = NULL; 1736 spin_unlock_irqrestore(&fcport->rport_lock, flags); 1737 fc_remote_port_delete(rport); 1738 } 1739 } 1740 1741 /* 1742 * qla2x00_mark_device_lost Updates fcport state when device goes offline. 1743 * 1744 * Input: ha = adapter block pointer. fcport = port structure pointer. 1745 * 1746 * Return: None. 1747 * 1748 * Context: 1749 */ 1750 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport, 1751 int do_login, int defer) 1752 { 1753 if (atomic_read(&fcport->state) == FCS_ONLINE) 1754 qla2x00_schedule_rport_del(ha, fcport, defer); 1755 1756 /* 1757 * We may need to retry the login, so don't change the state of the 1758 * port but do the retries. 1759 */ 1760 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD) 1761 atomic_set(&fcport->state, FCS_DEVICE_LOST); 1762 1763 if (!do_login) 1764 return; 1765 1766 if (fcport->login_retry == 0) { 1767 fcport->login_retry = ha->login_retry_count; 1768 set_bit(RELOGIN_NEEDED, &ha->dpc_flags); 1769 1770 DEBUG(printk("scsi(%ld): Port login retry: " 1771 "%02x%02x%02x%02x%02x%02x%02x%02x, " 1772 "id = 0x%04x retry cnt=%d\n", 1773 ha->host_no, 1774 fcport->port_name[0], 1775 fcport->port_name[1], 1776 fcport->port_name[2], 1777 fcport->port_name[3], 1778 fcport->port_name[4], 1779 fcport->port_name[5], 1780 fcport->port_name[6], 1781 fcport->port_name[7], 1782 fcport->loop_id, 1783 fcport->login_retry)); 1784 } 1785 } 1786 1787 /* 1788 * qla2x00_mark_all_devices_lost 1789 * Updates fcport state when device goes offline. 1790 * 1791 * Input: 1792 * ha = adapter block pointer. 1793 * fcport = port structure pointer. 1794 * 1795 * Return: 1796 * None. 1797 * 1798 * Context: 1799 */ 1800 void 1801 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) 1802 { 1803 fc_port_t *fcport; 1804 1805 list_for_each_entry(fcport, &ha->fcports, list) { 1806 if (fcport->port_type != FCT_TARGET) 1807 continue; 1808 1809 /* 1810 * No point in marking the device as lost, if the device is 1811 * already DEAD. 1812 */ 1813 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD) 1814 continue; 1815 if (atomic_read(&fcport->state) == FCS_ONLINE) 1816 qla2x00_schedule_rport_del(ha, fcport, defer); 1817 atomic_set(&fcport->state, FCS_DEVICE_LOST); 1818 } 1819 1820 if (defer) 1821 qla2xxx_wake_dpc(ha); 1822 } 1823 1824 /* 1825 * qla2x00_mem_alloc 1826 * Allocates adapter memory. 1827 * 1828 * Returns: 1829 * 0 = success. 1830 * 1 = failure. 1831 */ 1832 static uint8_t 1833 qla2x00_mem_alloc(scsi_qla_host_t *ha) 1834 { 1835 char name[16]; 1836 uint8_t status = 1; 1837 int retry= 10; 1838 1839 do { 1840 /* 1841 * This will loop only once if everything goes well, else some 1842 * number of retries will be performed to get around a kernel 1843 * bug where available mem is not allocated until after a 1844 * little delay and a retry. 1845 */ 1846 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev, 1847 (ha->request_q_length + 1) * sizeof(request_t), 1848 &ha->request_dma, GFP_KERNEL); 1849 if (ha->request_ring == NULL) { 1850 qla_printk(KERN_WARNING, ha, 1851 "Memory Allocation failed - request_ring\n"); 1852 1853 qla2x00_mem_free(ha); 1854 msleep(100); 1855 1856 continue; 1857 } 1858 1859 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev, 1860 (ha->response_q_length + 1) * sizeof(response_t), 1861 &ha->response_dma, GFP_KERNEL); 1862 if (ha->response_ring == NULL) { 1863 qla_printk(KERN_WARNING, ha, 1864 "Memory Allocation failed - response_ring\n"); 1865 1866 qla2x00_mem_free(ha); 1867 msleep(100); 1868 1869 continue; 1870 } 1871 1872 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE, 1873 &ha->gid_list_dma, GFP_KERNEL); 1874 if (ha->gid_list == NULL) { 1875 qla_printk(KERN_WARNING, ha, 1876 "Memory Allocation failed - gid_list\n"); 1877 1878 qla2x00_mem_free(ha); 1879 msleep(100); 1880 1881 continue; 1882 } 1883 1884 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev, 1885 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL); 1886 if (ha->rlc_rsp == NULL) { 1887 qla_printk(KERN_WARNING, ha, 1888 "Memory Allocation failed - rlc"); 1889 1890 qla2x00_mem_free(ha); 1891 msleep(100); 1892 1893 continue; 1894 } 1895 1896 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no); 1897 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev, 1898 DMA_POOL_SIZE, 8, 0); 1899 if (ha->s_dma_pool == NULL) { 1900 qla_printk(KERN_WARNING, ha, 1901 "Memory Allocation failed - s_dma_pool\n"); 1902 1903 qla2x00_mem_free(ha); 1904 msleep(100); 1905 1906 continue; 1907 } 1908 1909 /* get consistent memory allocated for init control block */ 1910 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, 1911 &ha->init_cb_dma); 1912 if (ha->init_cb == NULL) { 1913 qla_printk(KERN_WARNING, ha, 1914 "Memory Allocation failed - init_cb\n"); 1915 1916 qla2x00_mem_free(ha); 1917 msleep(100); 1918 1919 continue; 1920 } 1921 memset(ha->init_cb, 0, ha->init_cb_size); 1922 1923 /* Get consistent memory allocated for Get Port Database cmd */ 1924 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, 1925 &ha->iodesc_pd_dma); 1926 if (ha->iodesc_pd == NULL) { 1927 /* error */ 1928 qla_printk(KERN_WARNING, ha, 1929 "Memory Allocation failed - iodesc_pd\n"); 1930 1931 qla2x00_mem_free(ha); 1932 msleep(100); 1933 1934 continue; 1935 } 1936 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE); 1937 1938 /* Allocate ioctl related memory. */ 1939 if (qla2x00_alloc_ioctl_mem(ha)) { 1940 qla_printk(KERN_WARNING, ha, 1941 "Memory Allocation failed - ioctl_mem\n"); 1942 1943 qla2x00_mem_free(ha); 1944 msleep(100); 1945 1946 continue; 1947 } 1948 1949 if (qla2x00_allocate_sp_pool(ha)) { 1950 qla_printk(KERN_WARNING, ha, 1951 "Memory Allocation failed - " 1952 "qla2x00_allocate_sp_pool()\n"); 1953 1954 qla2x00_mem_free(ha); 1955 msleep(100); 1956 1957 continue; 1958 } 1959 1960 /* Allocate memory for SNS commands */ 1961 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 1962 /* Get consistent memory allocated for SNS commands */ 1963 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev, 1964 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, 1965 GFP_KERNEL); 1966 if (ha->sns_cmd == NULL) { 1967 /* error */ 1968 qla_printk(KERN_WARNING, ha, 1969 "Memory Allocation failed - sns_cmd\n"); 1970 1971 qla2x00_mem_free(ha); 1972 msleep(100); 1973 1974 continue; 1975 } 1976 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt)); 1977 } else { 1978 /* Get consistent memory allocated for MS IOCB */ 1979 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, 1980 &ha->ms_iocb_dma); 1981 if (ha->ms_iocb == NULL) { 1982 /* error */ 1983 qla_printk(KERN_WARNING, ha, 1984 "Memory Allocation failed - ms_iocb\n"); 1985 1986 qla2x00_mem_free(ha); 1987 msleep(100); 1988 1989 continue; 1990 } 1991 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t)); 1992 1993 /* 1994 * Get consistent memory allocated for CT SNS 1995 * commands 1996 */ 1997 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev, 1998 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, 1999 GFP_KERNEL); 2000 if (ha->ct_sns == NULL) { 2001 /* error */ 2002 qla_printk(KERN_WARNING, ha, 2003 "Memory Allocation failed - ct_sns\n"); 2004 2005 qla2x00_mem_free(ha); 2006 msleep(100); 2007 2008 continue; 2009 } 2010 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt)); 2011 } 2012 2013 /* Done all allocations without any error. */ 2014 status = 0; 2015 2016 } while (retry-- && status != 0); 2017 2018 if (status) { 2019 printk(KERN_WARNING 2020 "%s(): **** FAILED ****\n", __func__); 2021 } 2022 2023 return(status); 2024 } 2025 2026 /* 2027 * qla2x00_mem_free 2028 * Frees all adapter allocated memory. 2029 * 2030 * Input: 2031 * ha = adapter block pointer. 2032 */ 2033 static void 2034 qla2x00_mem_free(scsi_qla_host_t *ha) 2035 { 2036 struct list_head *fcpl, *fcptemp; 2037 fc_port_t *fcport; 2038 2039 if (ha == NULL) { 2040 /* error */ 2041 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__)); 2042 return; 2043 } 2044 2045 /* free ioctl memory */ 2046 qla2x00_free_ioctl_mem(ha); 2047 2048 /* free sp pool */ 2049 qla2x00_free_sp_pool(ha); 2050 2051 if (ha->sns_cmd) 2052 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt), 2053 ha->sns_cmd, ha->sns_cmd_dma); 2054 2055 if (ha->ct_sns) 2056 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt), 2057 ha->ct_sns, ha->ct_sns_dma); 2058 2059 if (ha->ms_iocb) 2060 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma); 2061 2062 if (ha->iodesc_pd) 2063 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma); 2064 2065 if (ha->init_cb) 2066 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma); 2067 2068 if (ha->s_dma_pool) 2069 dma_pool_destroy(ha->s_dma_pool); 2070 2071 if (ha->rlc_rsp) 2072 dma_free_coherent(&ha->pdev->dev, 2073 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp, 2074 ha->rlc_rsp_dma); 2075 2076 if (ha->gid_list) 2077 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list, 2078 ha->gid_list_dma); 2079 2080 if (ha->response_ring) 2081 dma_free_coherent(&ha->pdev->dev, 2082 (ha->response_q_length + 1) * sizeof(response_t), 2083 ha->response_ring, ha->response_dma); 2084 2085 if (ha->request_ring) 2086 dma_free_coherent(&ha->pdev->dev, 2087 (ha->request_q_length + 1) * sizeof(request_t), 2088 ha->request_ring, ha->request_dma); 2089 2090 ha->sns_cmd = NULL; 2091 ha->sns_cmd_dma = 0; 2092 ha->ct_sns = NULL; 2093 ha->ct_sns_dma = 0; 2094 ha->ms_iocb = NULL; 2095 ha->ms_iocb_dma = 0; 2096 ha->iodesc_pd = NULL; 2097 ha->iodesc_pd_dma = 0; 2098 ha->init_cb = NULL; 2099 ha->init_cb_dma = 0; 2100 2101 ha->s_dma_pool = NULL; 2102 2103 ha->rlc_rsp = NULL; 2104 ha->rlc_rsp_dma = 0; 2105 ha->gid_list = NULL; 2106 ha->gid_list_dma = 0; 2107 2108 ha->response_ring = NULL; 2109 ha->response_dma = 0; 2110 ha->request_ring = NULL; 2111 ha->request_dma = 0; 2112 2113 list_for_each_safe(fcpl, fcptemp, &ha->fcports) { 2114 fcport = list_entry(fcpl, fc_port_t, list); 2115 2116 /* fc ports */ 2117 list_del_init(&fcport->list); 2118 kfree(fcport); 2119 } 2120 INIT_LIST_HEAD(&ha->fcports); 2121 2122 if (ha->fw_dump) 2123 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order); 2124 2125 vfree(ha->fw_dump24); 2126 2127 vfree(ha->fw_dump_buffer); 2128 2129 ha->fw_dump = NULL; 2130 ha->fw_dump24 = NULL; 2131 ha->fw_dumped = 0; 2132 ha->fw_dump_reading = 0; 2133 ha->fw_dump_buffer = NULL; 2134 2135 vfree(ha->optrom_buffer); 2136 } 2137 2138 /* 2139 * qla2x00_allocate_sp_pool 2140 * This routine is called during initialization to allocate 2141 * memory for local srb_t. 2142 * 2143 * Input: 2144 * ha = adapter block pointer. 2145 * 2146 * Context: 2147 * Kernel context. 2148 * 2149 * Note: Sets the ref_count for non Null sp to one. 2150 */ 2151 static int 2152 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha) 2153 { 2154 int rval; 2155 2156 rval = QLA_SUCCESS; 2157 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep); 2158 if (ha->srb_mempool == NULL) { 2159 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n"); 2160 rval = QLA_FUNCTION_FAILED; 2161 } 2162 return (rval); 2163 } 2164 2165 /* 2166 * This routine frees all adapter allocated memory. 2167 * 2168 */ 2169 static void 2170 qla2x00_free_sp_pool( scsi_qla_host_t *ha) 2171 { 2172 if (ha->srb_mempool) { 2173 mempool_destroy(ha->srb_mempool); 2174 ha->srb_mempool = NULL; 2175 } 2176 } 2177 2178 /************************************************************************** 2179 * qla2x00_do_dpc 2180 * This kernel thread is a task that is schedule by the interrupt handler 2181 * to perform the background processing for interrupts. 2182 * 2183 * Notes: 2184 * This task always run in the context of a kernel thread. It 2185 * is kick-off by the driver's detect code and starts up 2186 * up one per adapter. It immediately goes to sleep and waits for 2187 * some fibre event. When either the interrupt handler or 2188 * the timer routine detects a event it will one of the task 2189 * bits then wake us up. 2190 **************************************************************************/ 2191 static int 2192 qla2x00_do_dpc(void *data) 2193 { 2194 scsi_qla_host_t *ha; 2195 fc_port_t *fcport; 2196 uint8_t status; 2197 uint16_t next_loopid; 2198 2199 ha = (scsi_qla_host_t *)data; 2200 2201 set_user_nice(current, -20); 2202 2203 while (!kthread_should_stop()) { 2204 DEBUG3(printk("qla2x00: DPC handler sleeping\n")); 2205 2206 set_current_state(TASK_INTERRUPTIBLE); 2207 schedule(); 2208 __set_current_state(TASK_RUNNING); 2209 2210 DEBUG3(printk("qla2x00: DPC handler waking up\n")); 2211 2212 /* Initialization not yet finished. Don't do anything yet. */ 2213 if (!ha->flags.init_done) 2214 continue; 2215 2216 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no)); 2217 2218 ha->dpc_active = 1; 2219 2220 if (ha->flags.mbox_busy) { 2221 ha->dpc_active = 0; 2222 continue; 2223 } 2224 2225 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { 2226 2227 DEBUG(printk("scsi(%ld): dpc: sched " 2228 "qla2x00_abort_isp ha = %p\n", 2229 ha->host_no, ha)); 2230 if (!(test_and_set_bit(ABORT_ISP_ACTIVE, 2231 &ha->dpc_flags))) { 2232 2233 if (qla2x00_abort_isp(ha)) { 2234 /* failed. retry later */ 2235 set_bit(ISP_ABORT_NEEDED, 2236 &ha->dpc_flags); 2237 } 2238 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); 2239 } 2240 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n", 2241 ha->host_no)); 2242 } 2243 2244 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) 2245 qla2x00_update_fcports(ha); 2246 2247 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) { 2248 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n", 2249 ha->host_no)); 2250 qla2x00_loop_reset(ha); 2251 } 2252 2253 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) && 2254 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) { 2255 2256 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n", 2257 ha->host_no)); 2258 2259 qla2x00_rst_aen(ha); 2260 clear_bit(RESET_ACTIVE, &ha->dpc_flags); 2261 } 2262 2263 /* Retry each device up to login retry count */ 2264 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) && 2265 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) && 2266 atomic_read(&ha->loop_state) != LOOP_DOWN) { 2267 2268 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n", 2269 ha->host_no)); 2270 2271 next_loopid = 0; 2272 list_for_each_entry(fcport, &ha->fcports, list) { 2273 if (fcport->port_type != FCT_TARGET) 2274 continue; 2275 2276 /* 2277 * If the port is not ONLINE then try to login 2278 * to it if we haven't run out of retries. 2279 */ 2280 if (atomic_read(&fcport->state) != FCS_ONLINE && 2281 fcport->login_retry) { 2282 2283 fcport->login_retry--; 2284 if (fcport->flags & FCF_FABRIC_DEVICE) { 2285 if (fcport->flags & 2286 FCF_TAPE_PRESENT) 2287 ha->isp_ops.fabric_logout( 2288 ha, fcport->loop_id, 2289 fcport->d_id.b.domain, 2290 fcport->d_id.b.area, 2291 fcport->d_id.b.al_pa); 2292 status = qla2x00_fabric_login( 2293 ha, fcport, &next_loopid); 2294 } else 2295 status = 2296 qla2x00_local_device_login( 2297 ha, fcport); 2298 2299 if (status == QLA_SUCCESS) { 2300 fcport->old_loop_id = fcport->loop_id; 2301 2302 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n", 2303 ha->host_no, fcport->loop_id)); 2304 2305 qla2x00_update_fcport(ha, 2306 fcport); 2307 } else if (status == 1) { 2308 set_bit(RELOGIN_NEEDED, &ha->dpc_flags); 2309 /* retry the login again */ 2310 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n", 2311 ha->host_no, 2312 fcport->login_retry, fcport->loop_id)); 2313 } else { 2314 fcport->login_retry = 0; 2315 } 2316 } 2317 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2318 break; 2319 } 2320 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n", 2321 ha->host_no)); 2322 } 2323 2324 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) && 2325 atomic_read(&ha->loop_state) != LOOP_DOWN) { 2326 2327 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags); 2328 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n", 2329 ha->host_no)); 2330 2331 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 2332 2333 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n", 2334 ha->host_no)); 2335 } 2336 2337 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 2338 2339 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n", 2340 ha->host_no)); 2341 2342 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, 2343 &ha->dpc_flags))) { 2344 2345 qla2x00_loop_resync(ha); 2346 2347 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags); 2348 } 2349 2350 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n", 2351 ha->host_no)); 2352 } 2353 2354 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) { 2355 2356 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n", 2357 ha->host_no)); 2358 2359 qla2x00_rescan_fcports(ha); 2360 2361 DEBUG(printk("scsi(%ld): Rescan flagged fcports..." 2362 "end.\n", 2363 ha->host_no)); 2364 } 2365 2366 if (!ha->interrupts_on) 2367 ha->isp_ops.enable_intrs(ha); 2368 2369 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags)) 2370 ha->isp_ops.beacon_blink(ha); 2371 2372 ha->dpc_active = 0; 2373 } /* End of while(1) */ 2374 2375 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no)); 2376 2377 /* 2378 * Make sure that nobody tries to wake us up again. 2379 */ 2380 ha->dpc_active = 0; 2381 2382 return 0; 2383 } 2384 2385 void 2386 qla2xxx_wake_dpc(scsi_qla_host_t *ha) 2387 { 2388 if (ha->dpc_thread) 2389 wake_up_process(ha->dpc_thread); 2390 } 2391 2392 /* 2393 * qla2x00_rst_aen 2394 * Processes asynchronous reset. 2395 * 2396 * Input: 2397 * ha = adapter block pointer. 2398 */ 2399 static void 2400 qla2x00_rst_aen(scsi_qla_host_t *ha) 2401 { 2402 if (ha->flags.online && !ha->flags.reset_active && 2403 !atomic_read(&ha->loop_down_timer) && 2404 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { 2405 do { 2406 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 2407 2408 /* 2409 * Issue marker command only when we are going to start 2410 * the I/O. 2411 */ 2412 ha->marker_needed = 1; 2413 } while (!atomic_read(&ha->loop_down_timer) && 2414 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags))); 2415 } 2416 } 2417 2418 static void 2419 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp) 2420 { 2421 struct scsi_cmnd *cmd = sp->cmd; 2422 2423 if (sp->flags & SRB_DMA_VALID) { 2424 if (cmd->use_sg) { 2425 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer, 2426 cmd->use_sg, cmd->sc_data_direction); 2427 } else if (cmd->request_bufflen) { 2428 dma_unmap_single(&ha->pdev->dev, sp->dma_handle, 2429 cmd->request_bufflen, cmd->sc_data_direction); 2430 } 2431 sp->flags &= ~SRB_DMA_VALID; 2432 } 2433 CMD_SP(cmd) = NULL; 2434 } 2435 2436 void 2437 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp) 2438 { 2439 struct scsi_cmnd *cmd = sp->cmd; 2440 2441 qla2x00_sp_free_dma(ha, sp); 2442 2443 mempool_free(sp, ha->srb_mempool); 2444 2445 cmd->scsi_done(cmd); 2446 } 2447 2448 /************************************************************************** 2449 * qla2x00_timer 2450 * 2451 * Description: 2452 * One second timer 2453 * 2454 * Context: Interrupt 2455 ***************************************************************************/ 2456 static void 2457 qla2x00_timer(scsi_qla_host_t *ha) 2458 { 2459 unsigned long cpu_flags = 0; 2460 fc_port_t *fcport; 2461 int start_dpc = 0; 2462 int index; 2463 srb_t *sp; 2464 int t; 2465 2466 /* 2467 * Ports - Port down timer. 2468 * 2469 * Whenever, a port is in the LOST state we start decrementing its port 2470 * down timer every second until it reaches zero. Once it reaches zero 2471 * the port it marked DEAD. 2472 */ 2473 t = 0; 2474 list_for_each_entry(fcport, &ha->fcports, list) { 2475 if (fcport->port_type != FCT_TARGET) 2476 continue; 2477 2478 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { 2479 2480 if (atomic_read(&fcport->port_down_timer) == 0) 2481 continue; 2482 2483 if (atomic_dec_and_test(&fcport->port_down_timer) != 0) 2484 atomic_set(&fcport->state, FCS_DEVICE_DEAD); 2485 2486 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: " 2487 "%d remaining\n", 2488 ha->host_no, 2489 t, atomic_read(&fcport->port_down_timer))); 2490 } 2491 t++; 2492 } /* End of for fcport */ 2493 2494 2495 /* Loop down handler. */ 2496 if (atomic_read(&ha->loop_down_timer) > 0 && 2497 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) { 2498 2499 if (atomic_read(&ha->loop_down_timer) == 2500 ha->loop_down_abort_time) { 2501 2502 DEBUG(printk("scsi(%ld): Loop Down - aborting the " 2503 "queues before time expire\n", 2504 ha->host_no)); 2505 2506 if (!IS_QLA2100(ha) && ha->link_down_timeout) 2507 atomic_set(&ha->loop_state, LOOP_DEAD); 2508 2509 /* Schedule an ISP abort to return any tape commands. */ 2510 spin_lock_irqsave(&ha->hardware_lock, cpu_flags); 2511 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; 2512 index++) { 2513 fc_port_t *sfcp; 2514 2515 sp = ha->outstanding_cmds[index]; 2516 if (!sp) 2517 continue; 2518 sfcp = sp->fcport; 2519 if (!(sfcp->flags & FCF_TAPE_PRESENT)) 2520 continue; 2521 2522 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 2523 break; 2524 } 2525 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags); 2526 2527 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags); 2528 start_dpc++; 2529 } 2530 2531 /* if the loop has been down for 4 minutes, reinit adapter */ 2532 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) { 2533 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - " 2534 "restarting queues.\n", 2535 ha->host_no)); 2536 2537 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags); 2538 start_dpc++; 2539 2540 if (!(ha->device_flags & DFLG_NO_CABLE)) { 2541 DEBUG(printk("scsi(%ld): Loop down - " 2542 "aborting ISP.\n", 2543 ha->host_no)); 2544 qla_printk(KERN_WARNING, ha, 2545 "Loop down - aborting ISP.\n"); 2546 2547 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 2548 } 2549 } 2550 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n", 2551 ha->host_no, 2552 atomic_read(&ha->loop_down_timer))); 2553 } 2554 2555 /* Check if beacon LED needs to be blinked */ 2556 if (ha->beacon_blink_led == 1) { 2557 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags); 2558 start_dpc++; 2559 } 2560 2561 /* Schedule the DPC routine if needed */ 2562 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || 2563 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || 2564 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) || 2565 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) || 2566 start_dpc || 2567 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) || 2568 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) || 2569 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) || 2570 test_bit(RELOGIN_NEEDED, &ha->dpc_flags))) 2571 qla2xxx_wake_dpc(ha); 2572 2573 qla2x00_restart_timer(ha, WATCH_INTERVAL); 2574 } 2575 2576 /* XXX(hch): crude hack to emulate a down_timeout() */ 2577 int 2578 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout) 2579 { 2580 const unsigned int step = 100; /* msecs */ 2581 unsigned int iterations = jiffies_to_msecs(timeout)/100; 2582 2583 do { 2584 if (!down_trylock(sema)) 2585 return 0; 2586 if (msleep_interruptible(step)) 2587 break; 2588 } while (--iterations >= 0); 2589 2590 return -ETIMEDOUT; 2591 } 2592 2593 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) 2594 2595 #define qla2x00_release_firmware() do { } while (0) 2596 #define qla2x00_pci_module_init() (0) 2597 #define qla2x00_pci_module_exit() do { } while (0) 2598 2599 #else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */ 2600 2601 /* Firmware interface routines. */ 2602 2603 #define FW_BLOBS 5 2604 #define FW_ISP21XX 0 2605 #define FW_ISP22XX 1 2606 #define FW_ISP2300 2 2607 #define FW_ISP2322 3 2608 #define FW_ISP24XX 4 2609 2610 static DECLARE_MUTEX(qla_fw_lock); 2611 2612 static struct fw_blob qla_fw_blobs[FW_BLOBS] = { 2613 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, }, 2614 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, }, 2615 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, }, 2616 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, }, 2617 { .name = "ql2400_fw.bin", }, 2618 }; 2619 2620 struct fw_blob * 2621 qla2x00_request_firmware(scsi_qla_host_t *ha) 2622 { 2623 struct fw_blob *blob; 2624 2625 blob = NULL; 2626 if (IS_QLA2100(ha)) { 2627 blob = &qla_fw_blobs[FW_ISP21XX]; 2628 } else if (IS_QLA2200(ha)) { 2629 blob = &qla_fw_blobs[FW_ISP22XX]; 2630 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { 2631 blob = &qla_fw_blobs[FW_ISP2300]; 2632 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) { 2633 blob = &qla_fw_blobs[FW_ISP2322]; 2634 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { 2635 blob = &qla_fw_blobs[FW_ISP24XX]; 2636 } 2637 2638 down(&qla_fw_lock); 2639 if (blob->fw) 2640 goto out; 2641 2642 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) { 2643 DEBUG2(printk("scsi(%ld): Failed to load firmware image " 2644 "(%s).\n", ha->host_no, blob->name)); 2645 blob->fw = NULL; 2646 blob = NULL; 2647 goto out; 2648 } 2649 2650 out: 2651 up(&qla_fw_lock); 2652 return blob; 2653 } 2654 2655 static void 2656 qla2x00_release_firmware(void) 2657 { 2658 int idx; 2659 2660 down(&qla_fw_lock); 2661 for (idx = 0; idx < FW_BLOBS; idx++) 2662 if (qla_fw_blobs[idx].fw) 2663 release_firmware(qla_fw_blobs[idx].fw); 2664 up(&qla_fw_lock); 2665 } 2666 2667 static struct qla_board_info qla_board_tbl = { 2668 .drv_name = "qla2xxx", 2669 }; 2670 2671 static struct pci_device_id qla2xxx_pci_tbl[] = { 2672 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100, 2673 PCI_ANY_ID, PCI_ANY_ID, }, 2674 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200, 2675 PCI_ANY_ID, PCI_ANY_ID, }, 2676 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300, 2677 PCI_ANY_ID, PCI_ANY_ID, }, 2678 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312, 2679 PCI_ANY_ID, PCI_ANY_ID, }, 2680 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322, 2681 PCI_ANY_ID, PCI_ANY_ID, }, 2682 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312, 2683 PCI_ANY_ID, PCI_ANY_ID, }, 2684 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322, 2685 PCI_ANY_ID, PCI_ANY_ID, }, 2686 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422, 2687 PCI_ANY_ID, PCI_ANY_ID, }, 2688 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432, 2689 PCI_ANY_ID, PCI_ANY_ID, }, 2690 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422, 2691 PCI_ANY_ID, PCI_ANY_ID, }, 2692 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432, 2693 PCI_ANY_ID, PCI_ANY_ID, }, 2694 { 0 }, 2695 }; 2696 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl); 2697 2698 static int __devinit 2699 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) 2700 { 2701 return qla2x00_probe_one(pdev, &qla_board_tbl); 2702 } 2703 2704 static void __devexit 2705 qla2xxx_remove_one(struct pci_dev *pdev) 2706 { 2707 qla2x00_remove_one(pdev); 2708 } 2709 2710 static struct pci_driver qla2xxx_pci_driver = { 2711 .name = "qla2xxx", 2712 .driver = { 2713 .owner = THIS_MODULE, 2714 }, 2715 .id_table = qla2xxx_pci_tbl, 2716 .probe = qla2xxx_probe_one, 2717 .remove = __devexit_p(qla2xxx_remove_one), 2718 }; 2719 2720 static inline int 2721 qla2x00_pci_module_init(void) 2722 { 2723 return pci_module_init(&qla2xxx_pci_driver); 2724 } 2725 2726 static inline void 2727 qla2x00_pci_module_exit(void) 2728 { 2729 pci_unregister_driver(&qla2xxx_pci_driver); 2730 } 2731 2732 #endif 2733 2734 /** 2735 * qla2x00_module_init - Module initialization. 2736 **/ 2737 static int __init 2738 qla2x00_module_init(void) 2739 { 2740 int ret = 0; 2741 2742 /* Allocate cache for SRBs. */ 2743 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0, 2744 SLAB_HWCACHE_ALIGN, NULL, NULL); 2745 if (srb_cachep == NULL) { 2746 printk(KERN_ERR 2747 "qla2xxx: Unable to allocate SRB cache...Failing load!\n"); 2748 return -ENOMEM; 2749 } 2750 2751 /* Derive version string. */ 2752 strcpy(qla2x00_version_str, QLA2XXX_VERSION); 2753 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) 2754 strcat(qla2x00_version_str, "-fw"); 2755 #endif 2756 #if DEBUG_QLA2100 2757 strcat(qla2x00_version_str, "-debug"); 2758 #endif 2759 qla2xxx_transport_template = 2760 fc_attach_transport(&qla2xxx_transport_functions); 2761 if (!qla2xxx_transport_template) 2762 return -ENODEV; 2763 2764 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n"); 2765 ret = qla2x00_pci_module_init(); 2766 if (ret) { 2767 kmem_cache_destroy(srb_cachep); 2768 fc_release_transport(qla2xxx_transport_template); 2769 } 2770 return ret; 2771 } 2772 2773 /** 2774 * qla2x00_module_exit - Module cleanup. 2775 **/ 2776 static void __exit 2777 qla2x00_module_exit(void) 2778 { 2779 qla2x00_pci_module_exit(); 2780 qla2x00_release_firmware(); 2781 kmem_cache_destroy(srb_cachep); 2782 fc_release_transport(qla2xxx_transport_template); 2783 } 2784 2785 module_init(qla2x00_module_init); 2786 module_exit(qla2x00_module_exit); 2787 2788 MODULE_AUTHOR("QLogic Corporation"); 2789 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver"); 2790 MODULE_LICENSE("GPL"); 2791 MODULE_VERSION(QLA2XXX_VERSION); 2792