1 /* 2 * QLogic iSCSI HBA Driver 3 * Copyright (c) 2003-2013 QLogic Corporation 4 * 5 * See LICENSE.qla4xxx for copyright and licensing details. 6 */ 7 8 #include <scsi/iscsi_if.h> 9 #include "ql4_def.h" 10 #include "ql4_glbl.h" 11 #include "ql4_dbg.h" 12 #include "ql4_inline.h" 13 14 static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) 15 { 16 uint32_t value; 17 uint8_t func_number; 18 unsigned long flags; 19 20 /* Get the function number */ 21 spin_lock_irqsave(&ha->hardware_lock, flags); 22 value = readw(&ha->reg->ctrl_status); 23 spin_unlock_irqrestore(&ha->hardware_lock, flags); 24 25 func_number = (uint8_t) ((value >> 4) & 0x30); 26 switch (value & ISP_CONTROL_FN_MASK) { 27 case ISP_CONTROL_FN0_SCSI: 28 ha->mac_index = 1; 29 break; 30 case ISP_CONTROL_FN1_SCSI: 31 ha->mac_index = 3; 32 break; 33 default: 34 DEBUG2(printk("scsi%ld: %s: Invalid function number, " 35 "ispControlStatus = 0x%x\n", ha->host_no, 36 __func__, value)); 37 break; 38 } 39 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, 40 ha->mac_index)); 41 } 42 43 /** 44 * qla4xxx_free_ddb - deallocate ddb 45 * @ha: pointer to host adapter structure. 46 * @ddb_entry: pointer to device database entry 47 * 48 * This routine marks a DDB entry INVALID 49 **/ 50 void qla4xxx_free_ddb(struct scsi_qla_host *ha, 51 struct ddb_entry *ddb_entry) 52 { 53 /* Remove device pointer from index mapping arrays */ 54 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = 55 (struct ddb_entry *) INVALID_ENTRY; 56 ha->tot_ddbs--; 57 } 58 59 /** 60 * qla4xxx_init_response_q_entries() - Initializes response queue entries. 61 * @ha: HA context 62 * 63 * Beginning of request ring has initialization control block already built 64 * by nvram config routine. 65 **/ 66 static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha) 67 { 68 uint16_t cnt; 69 struct response *pkt; 70 71 pkt = (struct response *)ha->response_ptr; 72 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) { 73 pkt->signature = RESPONSE_PROCESSED; 74 pkt++; 75 } 76 } 77 78 /** 79 * qla4xxx_init_rings - initialize hw queues 80 * @ha: pointer to host adapter structure. 81 * 82 * This routine initializes the internal queues for the specified adapter. 83 * The QLA4010 requires us to restart the queues at index 0. 84 * The QLA4000 doesn't care, so just default to QLA4010's requirement. 85 **/ 86 int qla4xxx_init_rings(struct scsi_qla_host *ha) 87 { 88 unsigned long flags = 0; 89 int i; 90 91 /* Initialize request queue. */ 92 spin_lock_irqsave(&ha->hardware_lock, flags); 93 ha->request_out = 0; 94 ha->request_in = 0; 95 ha->request_ptr = &ha->request_ring[ha->request_in]; 96 ha->req_q_count = REQUEST_QUEUE_DEPTH; 97 98 /* Initialize response queue. */ 99 ha->response_in = 0; 100 ha->response_out = 0; 101 ha->response_ptr = &ha->response_ring[ha->response_out]; 102 103 if (is_qla8022(ha)) { 104 writel(0, 105 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out); 106 writel(0, 107 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in); 108 writel(0, 109 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out); 110 } else if (is_qla8032(ha) || is_qla8042(ha)) { 111 writel(0, 112 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in); 113 writel(0, 114 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in); 115 writel(0, 116 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out); 117 } else { 118 /* 119 * Initialize DMA Shadow registers. The firmware is really 120 * supposed to take care of this, but on some uniprocessor 121 * systems, the shadow registers aren't cleared-- causing 122 * the interrupt_handler to think there are responses to be 123 * processed when there aren't. 124 */ 125 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0); 126 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0); 127 wmb(); 128 129 writel(0, &ha->reg->req_q_in); 130 writel(0, &ha->reg->rsp_q_out); 131 readl(&ha->reg->rsp_q_out); 132 } 133 134 qla4xxx_init_response_q_entries(ha); 135 136 /* Initialize mailbox active array */ 137 for (i = 0; i < MAX_MRB; i++) 138 ha->active_mrb_array[i] = NULL; 139 140 spin_unlock_irqrestore(&ha->hardware_lock, flags); 141 142 return QLA_SUCCESS; 143 } 144 145 /** 146 * qla4xxx_get_sys_info - validate adapter MAC address(es) 147 * @ha: pointer to host adapter structure. 148 * 149 **/ 150 int qla4xxx_get_sys_info(struct scsi_qla_host *ha) 151 { 152 struct flash_sys_info *sys_info; 153 dma_addr_t sys_info_dma; 154 int status = QLA_ERROR; 155 156 sys_info = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*sys_info), 157 &sys_info_dma, GFP_KERNEL); 158 if (sys_info == NULL) { 159 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", 160 ha->host_no, __func__)); 161 162 goto exit_get_sys_info_no_free; 163 } 164 165 /* Get flash sys info */ 166 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, 167 sizeof(*sys_info)) != QLA_SUCCESS) { 168 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " 169 "failed\n", ha->host_no, __func__)); 170 171 goto exit_get_sys_info; 172 } 173 174 /* Save M.A.C. address & serial_number */ 175 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], 176 min(sizeof(ha->my_mac), 177 sizeof(sys_info->physAddr[0].address))); 178 memcpy(ha->serial_number, &sys_info->acSerialNumber, 179 min(sizeof(ha->serial_number), 180 sizeof(sys_info->acSerialNumber))); 181 182 status = QLA_SUCCESS; 183 184 exit_get_sys_info: 185 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, 186 sys_info_dma); 187 188 exit_get_sys_info_no_free: 189 return status; 190 } 191 192 /** 193 * qla4xxx_init_local_data - initialize adapter specific local data 194 * @ha: pointer to host adapter structure. 195 * 196 **/ 197 static void qla4xxx_init_local_data(struct scsi_qla_host *ha) 198 { 199 /* Initialize aen queue */ 200 ha->aen_q_count = MAX_AEN_ENTRIES; 201 } 202 203 static uint8_t 204 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha) 205 { 206 uint8_t ipv4_wait = 0; 207 uint8_t ipv6_wait = 0; 208 int8_t ip_address[IPv6_ADDR_LEN] = {0} ; 209 210 /* If both IPv4 & IPv6 are enabled, possibly only one 211 * IP address may be acquired, so check to see if we 212 * need to wait for another */ 213 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) { 214 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) && 215 ((ha->addl_fw_state & 216 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) { 217 ipv4_wait = 1; 218 } 219 if (((ha->ip_config.ipv6_addl_options & 220 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) && 221 ((ha->ip_config.ipv6_link_local_state == 222 IP_ADDRSTATE_ACQUIRING) || 223 (ha->ip_config.ipv6_addr0_state == 224 IP_ADDRSTATE_ACQUIRING) || 225 (ha->ip_config.ipv6_addr1_state == 226 IP_ADDRSTATE_ACQUIRING))) { 227 228 ipv6_wait = 1; 229 230 if ((ha->ip_config.ipv6_link_local_state == 231 IP_ADDRSTATE_PREFERRED) || 232 (ha->ip_config.ipv6_addr0_state == 233 IP_ADDRSTATE_PREFERRED) || 234 (ha->ip_config.ipv6_addr1_state == 235 IP_ADDRSTATE_PREFERRED)) { 236 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 237 "Preferred IP configured." 238 " Don't wait!\n", ha->host_no, 239 __func__)); 240 ipv6_wait = 0; 241 } 242 if (memcmp(&ha->ip_config.ipv6_default_router_addr, 243 ip_address, IPv6_ADDR_LEN) == 0) { 244 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 245 "No Router configured. " 246 "Don't wait!\n", ha->host_no, 247 __func__)); 248 ipv6_wait = 0; 249 } 250 if ((ha->ip_config.ipv6_default_router_state == 251 IPV6_RTRSTATE_MANUAL) && 252 (ha->ip_config.ipv6_link_local_state == 253 IP_ADDRSTATE_TENTATIVE) && 254 (memcmp(&ha->ip_config.ipv6_link_local_addr, 255 &ha->ip_config.ipv6_default_router_addr, 4) == 256 0)) { 257 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & " 258 "IP configured. Don't wait!\n", 259 ha->host_no, __func__)); 260 ipv6_wait = 0; 261 } 262 } 263 if (ipv4_wait || ipv6_wait) { 264 DEBUG2(printk("scsi%ld: %s: Wait for additional " 265 "IP(s) \"", ha->host_no, __func__)); 266 if (ipv4_wait) 267 DEBUG2(printk("IPv4 ")); 268 if (ha->ip_config.ipv6_link_local_state == 269 IP_ADDRSTATE_ACQUIRING) 270 DEBUG2(printk("IPv6LinkLocal ")); 271 if (ha->ip_config.ipv6_addr0_state == 272 IP_ADDRSTATE_ACQUIRING) 273 DEBUG2(printk("IPv6Addr0 ")); 274 if (ha->ip_config.ipv6_addr1_state == 275 IP_ADDRSTATE_ACQUIRING) 276 DEBUG2(printk("IPv6Addr1 ")); 277 DEBUG2(printk("\"\n")); 278 } 279 } 280 281 return ipv4_wait|ipv6_wait; 282 } 283 284 static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha, 285 struct qla4_8xxx_minidump_template_hdr *md_hdr) 286 { 287 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET : 288 QLA83XX_TEMPLATE_CAP_OFFSET; 289 int rval = 1; 290 uint32_t *cap_offset; 291 292 cap_offset = (uint32_t *)((char *)md_hdr + offset); 293 294 if (!(le32_to_cpu(*cap_offset) & BIT_0)) { 295 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n", 296 *cap_offset); 297 rval = 0; 298 } 299 300 return rval; 301 } 302 303 /** 304 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data. 305 * @ha: pointer to host adapter structure. 306 **/ 307 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha) 308 { 309 int status; 310 uint32_t capture_debug_level; 311 int hdr_entry_bit, k; 312 void *md_tmp; 313 dma_addr_t md_tmp_dma; 314 struct qla4_8xxx_minidump_template_hdr *md_hdr; 315 int dma_capable; 316 317 if (ha->fw_dump) { 318 ql4_printk(KERN_WARNING, ha, 319 "Firmware dump previously allocated.\n"); 320 return; 321 } 322 323 status = qla4xxx_req_template_size(ha); 324 if (status != QLA_SUCCESS) { 325 ql4_printk(KERN_INFO, ha, 326 "scsi%ld: Failed to get template size\n", 327 ha->host_no); 328 return; 329 } 330 331 clear_bit(AF_82XX_FW_DUMPED, &ha->flags); 332 333 /* Allocate memory for saving the template */ 334 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 335 &md_tmp_dma, GFP_KERNEL); 336 if (!md_tmp) { 337 ql4_printk(KERN_INFO, ha, 338 "scsi%ld: Failed to allocate DMA memory\n", 339 ha->host_no); 340 return; 341 } 342 343 /* Request template */ 344 status = qla4xxx_get_minidump_template(ha, md_tmp_dma); 345 if (status != QLA_SUCCESS) { 346 ql4_printk(KERN_INFO, ha, 347 "scsi%ld: Failed to get minidump template\n", 348 ha->host_no); 349 goto alloc_cleanup; 350 } 351 352 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp; 353 354 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr); 355 356 capture_debug_level = md_hdr->capture_debug_level; 357 358 /* Get capture mask based on module loadtime setting. */ 359 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) || 360 (ql4xmdcapmask == 0xFF && dma_capable)) { 361 ha->fw_dump_capture_mask = ql4xmdcapmask; 362 } else { 363 if (ql4xmdcapmask == 0xFF) 364 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n"); 365 ha->fw_dump_capture_mask = capture_debug_level; 366 } 367 368 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask; 369 370 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n", 371 md_hdr->num_of_entries)); 372 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n", 373 ha->fw_dump_tmplt_size)); 374 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n", 375 ha->fw_dump_capture_mask)); 376 377 /* Calculate fw_dump_size */ 378 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF); 379 hdr_entry_bit <<= 1, k++) { 380 if (hdr_entry_bit & ha->fw_dump_capture_mask) 381 ha->fw_dump_size += md_hdr->capture_size_array[k]; 382 } 383 384 /* Total firmware dump size including command header */ 385 ha->fw_dump_size += ha->fw_dump_tmplt_size; 386 ha->fw_dump = vmalloc(ha->fw_dump_size); 387 if (!ha->fw_dump) 388 goto alloc_cleanup; 389 390 DEBUG2(ql4_printk(KERN_INFO, ha, 391 "Minidump Template Size = 0x%x KB\n", 392 ha->fw_dump_tmplt_size)); 393 DEBUG2(ql4_printk(KERN_INFO, ha, 394 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size)); 395 396 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size); 397 ha->fw_dump_tmplt_hdr = ha->fw_dump; 398 399 alloc_cleanup: 400 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 401 md_tmp, md_tmp_dma); 402 } 403 404 static int qla4xxx_fw_ready(struct scsi_qla_host *ha) 405 { 406 uint32_t timeout_count; 407 int ready = 0; 408 409 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); 410 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; 411 timeout_count--) { 412 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 413 qla4xxx_get_dhcp_ip_address(ha); 414 415 /* Get firmware state. */ 416 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { 417 DEBUG2(printk("scsi%ld: %s: unable to get firmware " 418 "state\n", ha->host_no, __func__)); 419 break; 420 } 421 422 if (ha->firmware_state & FW_STATE_ERROR) { 423 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" 424 " occurred\n", ha->host_no, __func__)); 425 break; 426 427 } 428 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { 429 /* 430 * The firmware has not yet been issued an Initialize 431 * Firmware command, so issue it now. 432 */ 433 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) 434 break; 435 436 /* Go back and test for ready state - no wait. */ 437 continue; 438 } 439 440 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 441 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 442 "AUTOCONNECT in progress\n", 443 ha->host_no, __func__)); 444 } 445 446 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 447 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 448 " CONFIGURING IP\n", 449 ha->host_no, __func__)); 450 /* 451 * Check for link state after 15 secs and if link is 452 * still DOWN then, cable is unplugged. Ignore "DHCP 453 * in Progress/CONFIGURING IP" bit to check if firmware 454 * is in ready state or not after 15 secs. 455 * This is applicable for both 2.x & 3.x firmware 456 */ 457 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) { 458 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) { 459 DEBUG2(printk(KERN_INFO "scsi%ld: %s:" 460 " LINK UP (Cable plugged)\n", 461 ha->host_no, __func__)); 462 } else if (ha->firmware_state & 463 (FW_STATE_CONFIGURING_IP | 464 FW_STATE_READY)) { 465 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 466 "LINK DOWN (Cable unplugged)\n", 467 ha->host_no, __func__)); 468 ha->firmware_state = FW_STATE_READY; 469 } 470 } 471 } 472 473 if (ha->firmware_state == FW_STATE_READY) { 474 /* If DHCP IP Addr is available, retrieve it now. */ 475 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, 476 &ha->dpc_flags)) 477 qla4xxx_get_dhcp_ip_address(ha); 478 479 if (!qla4xxx_wait_for_ip_config(ha) || 480 timeout_count == 1) { 481 DEBUG2(ql4_printk(KERN_INFO, ha, 482 "Firmware Ready..\n")); 483 /* The firmware is ready to process SCSI 484 commands. */ 485 DEBUG2(ql4_printk(KERN_INFO, ha, 486 "scsi%ld: %s: MEDIA TYPE" 487 " - %s\n", ha->host_no, 488 __func__, (ha->addl_fw_state & 489 FW_ADDSTATE_OPTICAL_MEDIA) 490 != 0 ? "OPTICAL" : "COPPER")); 491 DEBUG2(ql4_printk(KERN_INFO, ha, 492 "scsi%ld: %s: DHCPv4 STATE" 493 " Enabled %s\n", ha->host_no, 494 __func__, (ha->addl_fw_state & 495 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ? 496 "YES" : "NO")); 497 DEBUG2(ql4_printk(KERN_INFO, ha, 498 "scsi%ld: %s: LINK %s\n", 499 ha->host_no, __func__, 500 (ha->addl_fw_state & 501 FW_ADDSTATE_LINK_UP) != 0 ? 502 "UP" : "DOWN")); 503 DEBUG2(ql4_printk(KERN_INFO, ha, 504 "scsi%ld: %s: iSNS Service " 505 "Started %s\n", 506 ha->host_no, __func__, 507 (ha->addl_fw_state & 508 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? 509 "YES" : "NO")); 510 511 ready = 1; 512 break; 513 } 514 } 515 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " 516 "seconds expired= %d\n", ha->host_no, __func__, 517 ha->firmware_state, ha->addl_fw_state, 518 timeout_count)); 519 if (is_qla4032(ha) && 520 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && 521 (timeout_count < ADAPTER_INIT_TOV - 5)) { 522 break; 523 } 524 525 msleep(1000); 526 } /* end of for */ 527 528 if (timeout_count <= 0) 529 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", 530 ha->host_no, __func__)); 531 532 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 533 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting " 534 "it's waiting to configure an IP address\n", 535 ha->host_no, __func__)); 536 ready = 1; 537 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 538 DEBUG2(printk("scsi%ld: %s: FW initialized, but " 539 "auto-discovery still in process\n", 540 ha->host_no, __func__)); 541 ready = 1; 542 } 543 544 return ready; 545 } 546 547 /** 548 * qla4xxx_init_firmware - initializes the firmware. 549 * @ha: pointer to host adapter structure. 550 * 551 **/ 552 static int qla4xxx_init_firmware(struct scsi_qla_host *ha) 553 { 554 int status = QLA_ERROR; 555 556 if (is_aer_supported(ha) && 557 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 558 return status; 559 560 /* For 82xx, stop firmware before initializing because if BIOS 561 * has previously initialized firmware, then driver's initialize 562 * firmware will fail. */ 563 if (is_qla80XX(ha)) 564 qla4_8xxx_stop_firmware(ha); 565 566 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); 567 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { 568 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " 569 "control block\n", ha->host_no, __func__)); 570 return status; 571 } 572 573 if (!qla4xxx_fw_ready(ha)) 574 return status; 575 576 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags)) 577 qla4xxx_alloc_fw_dump(ha); 578 579 return qla4xxx_get_firmware_status(ha); 580 } 581 582 static void qla4xxx_set_model_info(struct scsi_qla_host *ha) 583 { 584 uint16_t board_id_string[8]; 585 int i; 586 int size = sizeof(ha->nvram->isp4022.boardIdStr); 587 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2; 588 589 for (i = 0; i < (size / 2) ; i++) { 590 board_id_string[i] = rd_nvram_word(ha, offset); 591 offset += 1; 592 } 593 594 memcpy(ha->model_name, board_id_string, size); 595 } 596 597 static int qla4xxx_config_nvram(struct scsi_qla_host *ha) 598 { 599 unsigned long flags; 600 union external_hw_config_reg extHwConfig; 601 602 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, 603 __func__)); 604 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) 605 return QLA_ERROR; 606 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { 607 ql4xxx_unlock_flash(ha); 608 return QLA_ERROR; 609 } 610 611 /* Get EEPRom Parameters from NVRAM and validate */ 612 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); 613 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { 614 spin_lock_irqsave(&ha->hardware_lock, flags); 615 extHwConfig.Asuint32_t = 616 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); 617 spin_unlock_irqrestore(&ha->hardware_lock, flags); 618 } else { 619 ql4_printk(KERN_WARNING, ha, 620 "scsi%ld: %s: EEProm checksum invalid. " 621 "Please update your EEPROM\n", ha->host_no, 622 __func__); 623 624 /* Attempt to set defaults */ 625 if (is_qla4010(ha)) 626 extHwConfig.Asuint32_t = 0x1912; 627 else if (is_qla4022(ha) | is_qla4032(ha)) 628 extHwConfig.Asuint32_t = 0x0023; 629 else 630 return QLA_ERROR; 631 } 632 633 if (is_qla4022(ha) || is_qla4032(ha)) 634 qla4xxx_set_model_info(ha); 635 else 636 strcpy(ha->model_name, "QLA4010"); 637 638 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", 639 ha->host_no, __func__, extHwConfig.Asuint32_t)); 640 641 spin_lock_irqsave(&ha->hardware_lock, flags); 642 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); 643 readl(isp_ext_hw_conf(ha)); 644 spin_unlock_irqrestore(&ha->hardware_lock, flags); 645 646 ql4xxx_unlock_nvram(ha); 647 ql4xxx_unlock_flash(ha); 648 649 return QLA_SUCCESS; 650 } 651 652 /** 653 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. 654 * @ha: HA context 655 */ 656 void qla4_8xxx_pci_config(struct scsi_qla_host *ha) 657 { 658 pci_set_master(ha->pdev); 659 } 660 661 void qla4xxx_pci_config(struct scsi_qla_host *ha) 662 { 663 uint16_t w; 664 int status; 665 666 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 667 668 pci_set_master(ha->pdev); 669 status = pci_set_mwi(ha->pdev); 670 /* 671 * We want to respect framework's setting of PCI configuration space 672 * command register and also want to make sure that all bits of 673 * interest to us are properly set in command register. 674 */ 675 pci_read_config_word(ha->pdev, PCI_COMMAND, &w); 676 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; 677 w &= ~PCI_COMMAND_INTX_DISABLE; 678 pci_write_config_word(ha->pdev, PCI_COMMAND, w); 679 } 680 681 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) 682 { 683 int status = QLA_ERROR; 684 unsigned long max_wait_time; 685 unsigned long flags; 686 uint32_t mbox_status; 687 688 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n"); 689 690 /* 691 * Start firmware from flash ROM 692 * 693 * WORKAROUND: Stuff a non-constant value that the firmware can 694 * use as a seed for a random number generator in MB7 prior to 695 * setting BOOT_ENABLE. Fixes problem where the TCP 696 * connections use the same TCP ports after each reboot, 697 * causing some connections to not get re-established. 698 */ 699 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", 700 ha->host_no, __func__)); 701 702 spin_lock_irqsave(&ha->hardware_lock, flags); 703 writel(jiffies, &ha->reg->mailbox[7]); 704 if (is_qla4022(ha) | is_qla4032(ha)) 705 writel(set_rmask(NVR_WRITE_ENABLE), 706 &ha->reg->u1.isp4022.nvram); 707 708 writel(2, &ha->reg->mailbox[6]); 709 readl(&ha->reg->mailbox[6]); 710 711 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); 712 readl(&ha->reg->ctrl_status); 713 spin_unlock_irqrestore(&ha->hardware_lock, flags); 714 715 /* Wait for firmware to come UP. */ 716 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for " 717 "boot firmware to complete...\n", 718 ha->host_no, __func__, FIRMWARE_UP_TOV)); 719 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ); 720 do { 721 uint32_t ctrl_status; 722 723 spin_lock_irqsave(&ha->hardware_lock, flags); 724 ctrl_status = readw(&ha->reg->ctrl_status); 725 mbox_status = readw(&ha->reg->mailbox[0]); 726 spin_unlock_irqrestore(&ha->hardware_lock, flags); 727 728 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) 729 break; 730 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) 731 break; 732 733 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot " 734 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n", 735 ha->host_no, __func__, ctrl_status, max_wait_time)); 736 737 msleep_interruptible(250); 738 } while (!time_after_eq(jiffies, max_wait_time)); 739 740 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { 741 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n", 742 ha->host_no, __func__)); 743 744 spin_lock_irqsave(&ha->hardware_lock, flags); 745 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 746 &ha->reg->ctrl_status); 747 readl(&ha->reg->ctrl_status); 748 spin_unlock_irqrestore(&ha->hardware_lock, flags); 749 750 status = QLA_SUCCESS; 751 } else { 752 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " 753 "- mbox status 0x%x\n", ha->host_no, __func__, 754 mbox_status); 755 status = QLA_ERROR; 756 } 757 return status; 758 } 759 760 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) 761 { 762 #define QL4_LOCK_DRVR_WAIT 60 763 #define QL4_LOCK_DRVR_SLEEP 1 764 765 int drvr_wait = QL4_LOCK_DRVR_WAIT; 766 while (drvr_wait) { 767 if (ql4xxx_lock_drvr(a) == 0) { 768 ssleep(QL4_LOCK_DRVR_SLEEP); 769 if (drvr_wait) { 770 DEBUG2(printk("scsi%ld: %s: Waiting for " 771 "Global Init Semaphore(%d)...\n", 772 a->host_no, 773 __func__, drvr_wait)); 774 } 775 drvr_wait -= QL4_LOCK_DRVR_SLEEP; 776 } else { 777 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " 778 "acquired\n", a->host_no, __func__)); 779 return QLA_SUCCESS; 780 } 781 } 782 return QLA_ERROR; 783 } 784 785 /** 786 * qla4xxx_start_firmware - starts qla4xxx firmware 787 * @ha: Pointer to host adapter structure. 788 * 789 * This routine performs the necessary steps to start the firmware for 790 * the QLA4010 adapter. 791 **/ 792 int qla4xxx_start_firmware(struct scsi_qla_host *ha) 793 { 794 unsigned long flags = 0; 795 uint32_t mbox_status; 796 int status = QLA_ERROR; 797 int soft_reset = 1; 798 int config_chip = 0; 799 800 if (is_qla4022(ha) | is_qla4032(ha)) 801 ql4xxx_set_mac_number(ha); 802 803 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 804 return QLA_ERROR; 805 806 spin_lock_irqsave(&ha->hardware_lock, flags); 807 808 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, 809 __func__, readw(isp_port_ctrl(ha)))); 810 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, 811 __func__, readw(isp_port_status(ha)))); 812 813 /* Is Hardware already initialized? */ 814 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { 815 DEBUG(printk("scsi%ld: %s: Hardware has already been " 816 "initialized\n", ha->host_no, __func__)); 817 818 /* Receive firmware boot acknowledgement */ 819 mbox_status = readw(&ha->reg->mailbox[0]); 820 821 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " 822 "0x%x\n", ha->host_no, __func__, mbox_status)); 823 824 /* Is firmware already booted? */ 825 if (mbox_status == 0) { 826 /* F/W not running, must be config by net driver */ 827 config_chip = 1; 828 soft_reset = 0; 829 } else { 830 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 831 &ha->reg->ctrl_status); 832 readl(&ha->reg->ctrl_status); 833 writel(set_rmask(CSR_SCSI_COMPLETION_INTR), 834 &ha->reg->ctrl_status); 835 readl(&ha->reg->ctrl_status); 836 spin_unlock_irqrestore(&ha->hardware_lock, flags); 837 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { 838 DEBUG2(printk("scsi%ld: %s: Get firmware " 839 "state -- state = 0x%x\n", 840 ha->host_no, 841 __func__, ha->firmware_state)); 842 /* F/W is running */ 843 if (ha->firmware_state & 844 FW_STATE_CONFIG_WAIT) { 845 DEBUG2(printk("scsi%ld: %s: Firmware " 846 "in known state -- " 847 "config and " 848 "boot, state = 0x%x\n", 849 ha->host_no, __func__, 850 ha->firmware_state)); 851 config_chip = 1; 852 soft_reset = 0; 853 } 854 } else { 855 DEBUG2(printk("scsi%ld: %s: Firmware in " 856 "unknown state -- resetting," 857 " state = " 858 "0x%x\n", ha->host_no, __func__, 859 ha->firmware_state)); 860 } 861 spin_lock_irqsave(&ha->hardware_lock, flags); 862 } 863 } else { 864 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " 865 "started - resetting\n", ha->host_no, __func__)); 866 } 867 spin_unlock_irqrestore(&ha->hardware_lock, flags); 868 869 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", 870 ha->host_no, __func__, soft_reset, config_chip)); 871 if (soft_reset) { 872 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, 873 __func__)); 874 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr 875 * lock again, but ok */ 876 if (status == QLA_ERROR) { 877 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", 878 ha->host_no, __func__)); 879 ql4xxx_unlock_drvr(ha); 880 return QLA_ERROR; 881 } 882 config_chip = 1; 883 884 /* Reset clears the semaphore, so acquire again */ 885 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 886 return QLA_ERROR; 887 } 888 889 if (config_chip) { 890 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) 891 status = qla4xxx_start_firmware_from_flash(ha); 892 } 893 894 ql4xxx_unlock_drvr(ha); 895 if (status == QLA_SUCCESS) { 896 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) 897 qla4xxx_get_crash_record(ha); 898 899 qla4xxx_init_rings(ha); 900 } else { 901 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", 902 ha->host_no, __func__)); 903 } 904 return status; 905 } 906 /** 907 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware 908 * @ha: pointer to adapter structure 909 * 910 * Since firmware is not running in autoconnect mode the DDB indices should 911 * be freed so that when login happens from user space there are free DDB 912 * indices available. 913 **/ 914 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) 915 { 916 int max_ddbs; 917 int ret; 918 uint32_t idx = 0, next_idx = 0; 919 uint32_t state = 0, conn_err = 0; 920 921 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 922 MAX_DEV_DB_ENTRIES; 923 924 for (idx = 0; idx < max_ddbs; idx = next_idx) { 925 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 926 &next_idx, &state, &conn_err, 927 NULL, NULL); 928 if (ret == QLA_ERROR) { 929 next_idx++; 930 continue; 931 } 932 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 933 state == DDB_DS_SESSION_FAILED) { 934 DEBUG2(ql4_printk(KERN_INFO, ha, 935 "Freeing DDB index = 0x%x\n", idx)); 936 ret = qla4xxx_clear_ddb_entry(ha, idx); 937 if (ret == QLA_ERROR) 938 ql4_printk(KERN_ERR, ha, 939 "Unable to clear DDB index = " 940 "0x%x\n", idx); 941 } 942 if (next_idx == 0) 943 break; 944 } 945 } 946 947 /** 948 * qla4xxx_initialize_adapter - initiailizes hba 949 * @ha: Pointer to host adapter structure. 950 * 951 * This routine parforms all of the steps necessary to initialize the adapter. 952 * 953 **/ 954 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset) 955 { 956 int status = QLA_ERROR; 957 958 ha->eeprom_cmd_data = 0; 959 960 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 961 ha->isp_ops->pci_config(ha); 962 963 ha->isp_ops->disable_intrs(ha); 964 965 /* Initialize the Host adapter request/response queues and firmware */ 966 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) 967 goto exit_init_hba; 968 969 /* 970 * For ISP83XX, mailbox and IOCB interrupts are enabled separately. 971 * Mailbox interrupts must be enabled prior to issuing any mailbox 972 * command in order to prevent the possibility of losing interrupts 973 * while switching from polling to interrupt mode. IOCB interrupts are 974 * enabled via isp_ops->enable_intrs. 975 */ 976 if (is_qla8032(ha) || is_qla8042(ha)) 977 qla4_83xx_enable_mbox_intrs(ha); 978 979 if (qla4xxx_about_firmware(ha) == QLA_ERROR) 980 goto exit_init_hba; 981 982 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR) 983 goto exit_init_hba; 984 985 qla4xxx_init_local_data(ha); 986 987 status = qla4xxx_init_firmware(ha); 988 if (status == QLA_ERROR) 989 goto exit_init_hba; 990 991 if (is_reset == RESET_ADAPTER) 992 qla4xxx_build_ddb_list(ha, is_reset); 993 994 set_bit(AF_ONLINE, &ha->flags); 995 996 exit_init_hba: 997 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, 998 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 999 return status; 1000 } 1001 1002 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1003 struct ddb_entry *ddb_entry, uint32_t state) 1004 { 1005 uint32_t old_fw_ddb_device_state; 1006 int status = QLA_ERROR; 1007 1008 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1009 DEBUG2(ql4_printk(KERN_INFO, ha, 1010 "%s: DDB - old state = 0x%x, new state = 0x%x for " 1011 "index [%d]\n", __func__, 1012 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1013 1014 ddb_entry->fw_ddb_device_state = state; 1015 1016 switch (old_fw_ddb_device_state) { 1017 case DDB_DS_LOGIN_IN_PROCESS: 1018 switch (state) { 1019 case DDB_DS_SESSION_ACTIVE: 1020 case DDB_DS_DISCOVERY: 1021 qla4xxx_update_session_conn_param(ha, ddb_entry); 1022 ddb_entry->unblock_sess(ddb_entry->sess); 1023 status = QLA_SUCCESS; 1024 break; 1025 case DDB_DS_SESSION_FAILED: 1026 case DDB_DS_NO_CONNECTION_ACTIVE: 1027 iscsi_conn_login_event(ddb_entry->conn, 1028 ISCSI_CONN_STATE_FREE); 1029 status = QLA_SUCCESS; 1030 break; 1031 } 1032 break; 1033 case DDB_DS_SESSION_ACTIVE: 1034 case DDB_DS_DISCOVERY: 1035 switch (state) { 1036 case DDB_DS_SESSION_FAILED: 1037 /* 1038 * iscsi_session failure will cause userspace to 1039 * stop the connection which in turn would block the 1040 * iscsi_session and start relogin 1041 */ 1042 iscsi_session_failure(ddb_entry->sess->dd_data, 1043 ISCSI_ERR_CONN_FAILED); 1044 status = QLA_SUCCESS; 1045 break; 1046 case DDB_DS_NO_CONNECTION_ACTIVE: 1047 clear_bit(fw_ddb_index, ha->ddb_idx_map); 1048 status = QLA_SUCCESS; 1049 break; 1050 } 1051 break; 1052 case DDB_DS_SESSION_FAILED: 1053 switch (state) { 1054 case DDB_DS_SESSION_ACTIVE: 1055 case DDB_DS_DISCOVERY: 1056 ddb_entry->unblock_sess(ddb_entry->sess); 1057 qla4xxx_update_session_conn_param(ha, ddb_entry); 1058 status = QLA_SUCCESS; 1059 break; 1060 case DDB_DS_SESSION_FAILED: 1061 iscsi_session_failure(ddb_entry->sess->dd_data, 1062 ISCSI_ERR_CONN_FAILED); 1063 status = QLA_SUCCESS; 1064 break; 1065 } 1066 break; 1067 default: 1068 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", 1069 __func__)); 1070 break; 1071 } 1072 return status; 1073 } 1074 1075 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry) 1076 { 1077 /* 1078 * This triggers a relogin. After the relogin_timer 1079 * expires, the relogin gets scheduled. We must wait a 1080 * minimum amount of time since receiving an 0x8014 AEN 1081 * with failed device_state or a logout response before 1082 * we can issue another relogin. 1083 * 1084 * Firmware pads this timeout: (time2wait +1). 1085 * Driver retry to login should be longer than F/W. 1086 * Otherwise F/W will fail 1087 * set_ddb() mbx cmd with 0x4005 since it still 1088 * counting down its time2wait. 1089 */ 1090 atomic_set(&ddb_entry->relogin_timer, 0); 1091 atomic_set(&ddb_entry->retry_relogin_timer, 1092 ddb_entry->default_time2wait + 4); 1093 1094 } 1095 1096 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1097 struct ddb_entry *ddb_entry, uint32_t state) 1098 { 1099 uint32_t old_fw_ddb_device_state; 1100 int status = QLA_ERROR; 1101 1102 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1103 DEBUG2(ql4_printk(KERN_INFO, ha, 1104 "%s: DDB - old state = 0x%x, new state = 0x%x for " 1105 "index [%d]\n", __func__, 1106 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1107 1108 ddb_entry->fw_ddb_device_state = state; 1109 1110 switch (old_fw_ddb_device_state) { 1111 case DDB_DS_LOGIN_IN_PROCESS: 1112 case DDB_DS_NO_CONNECTION_ACTIVE: 1113 switch (state) { 1114 case DDB_DS_SESSION_ACTIVE: 1115 ddb_entry->unblock_sess(ddb_entry->sess); 1116 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); 1117 status = QLA_SUCCESS; 1118 break; 1119 case DDB_DS_SESSION_FAILED: 1120 iscsi_block_session(ddb_entry->sess); 1121 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1122 qla4xxx_arm_relogin_timer(ddb_entry); 1123 status = QLA_SUCCESS; 1124 break; 1125 } 1126 break; 1127 case DDB_DS_SESSION_ACTIVE: 1128 switch (state) { 1129 case DDB_DS_SESSION_FAILED: 1130 iscsi_block_session(ddb_entry->sess); 1131 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1132 qla4xxx_arm_relogin_timer(ddb_entry); 1133 status = QLA_SUCCESS; 1134 break; 1135 } 1136 break; 1137 case DDB_DS_SESSION_FAILED: 1138 switch (state) { 1139 case DDB_DS_SESSION_ACTIVE: 1140 ddb_entry->unblock_sess(ddb_entry->sess); 1141 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); 1142 status = QLA_SUCCESS; 1143 break; 1144 case DDB_DS_SESSION_FAILED: 1145 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1146 qla4xxx_arm_relogin_timer(ddb_entry); 1147 status = QLA_SUCCESS; 1148 break; 1149 } 1150 break; 1151 default: 1152 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", 1153 __func__)); 1154 break; 1155 } 1156 return status; 1157 } 1158 1159 /** 1160 * qla4xxx_process_ddb_changed - process ddb state change 1161 * @ha - Pointer to host adapter structure. 1162 * @fw_ddb_index - Firmware's device database index 1163 * @state - Device state 1164 * 1165 * This routine processes a Decive Database Changed AEN Event. 1166 **/ 1167 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, 1168 uint32_t fw_ddb_index, 1169 uint32_t state, uint32_t conn_err) 1170 { 1171 struct ddb_entry *ddb_entry; 1172 int status = QLA_ERROR; 1173 1174 /* check for out of range index */ 1175 if (fw_ddb_index >= MAX_DDB_ENTRIES) 1176 goto exit_ddb_event; 1177 1178 /* Get the corresponging ddb entry */ 1179 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); 1180 /* Device does not currently exist in our database. */ 1181 if (ddb_entry == NULL) { 1182 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", 1183 __func__, fw_ddb_index); 1184 1185 if (state == DDB_DS_NO_CONNECTION_ACTIVE) 1186 clear_bit(fw_ddb_index, ha->ddb_idx_map); 1187 1188 goto exit_ddb_event; 1189 } 1190 1191 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state); 1192 1193 exit_ddb_event: 1194 return status; 1195 } 1196 1197 /** 1198 * qla4xxx_login_flash_ddb - Login to target (DDB) 1199 * @cls_session: Pointer to the session to login 1200 * 1201 * This routine logins to the target. 1202 * Issues setddb and conn open mbx 1203 **/ 1204 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session) 1205 { 1206 struct iscsi_session *sess; 1207 struct ddb_entry *ddb_entry; 1208 struct scsi_qla_host *ha; 1209 struct dev_db_entry *fw_ddb_entry = NULL; 1210 dma_addr_t fw_ddb_dma; 1211 uint32_t mbx_sts = 0; 1212 int ret; 1213 1214 sess = cls_session->dd_data; 1215 ddb_entry = sess->dd_data; 1216 ha = ddb_entry->ha; 1217 1218 if (!test_bit(AF_LINK_UP, &ha->flags)) 1219 return; 1220 1221 if (ddb_entry->ddb_type != FLASH_DDB) { 1222 DEBUG2(ql4_printk(KERN_INFO, ha, 1223 "Skipping login to non FLASH DB")); 1224 goto exit_login; 1225 } 1226 1227 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 1228 &fw_ddb_dma); 1229 if (fw_ddb_entry == NULL) { 1230 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 1231 goto exit_login; 1232 } 1233 1234 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) { 1235 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index); 1236 if (ret == QLA_ERROR) 1237 goto exit_login; 1238 1239 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1240 ha->tot_ddbs++; 1241 } 1242 1243 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry, 1244 sizeof(struct dev_db_entry)); 1245 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index; 1246 1247 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 1248 fw_ddb_dma, &mbx_sts); 1249 if (ret == QLA_ERROR) { 1250 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n")); 1251 goto exit_login; 1252 } 1253 1254 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1255 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1256 if (ret == QLA_ERROR) { 1257 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 1258 sess->targetname); 1259 goto exit_login; 1260 } 1261 1262 exit_login: 1263 if (fw_ddb_entry) 1264 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 1265 } 1266 1267