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 unsigned long flags; 18 19 /* Get the function number */ 20 spin_lock_irqsave(&ha->hardware_lock, flags); 21 value = readw(&ha->reg->ctrl_status); 22 spin_unlock_irqrestore(&ha->hardware_lock, flags); 23 24 switch (value & ISP_CONTROL_FN_MASK) { 25 case ISP_CONTROL_FN0_SCSI: 26 ha->mac_index = 1; 27 break; 28 case ISP_CONTROL_FN1_SCSI: 29 ha->mac_index = 3; 30 break; 31 default: 32 DEBUG2(printk("scsi%ld: %s: Invalid function number, " 33 "ispControlStatus = 0x%x\n", ha->host_no, 34 __func__, value)); 35 break; 36 } 37 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, 38 ha->mac_index)); 39 } 40 41 /** 42 * qla4xxx_free_ddb - deallocate ddb 43 * @ha: pointer to host adapter structure. 44 * @ddb_entry: pointer to device database entry 45 * 46 * This routine marks a DDB entry INVALID 47 **/ 48 void qla4xxx_free_ddb(struct scsi_qla_host *ha, 49 struct ddb_entry *ddb_entry) 50 { 51 /* Remove device pointer from index mapping arrays */ 52 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = 53 (struct ddb_entry *) INVALID_ENTRY; 54 ha->tot_ddbs--; 55 } 56 57 /** 58 * qla4xxx_init_response_q_entries() - Initializes response queue entries. 59 * @ha: HA context 60 * 61 * Beginning of request ring has initialization control block already built 62 * by nvram config routine. 63 **/ 64 static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha) 65 { 66 uint16_t cnt; 67 struct response *pkt; 68 69 pkt = (struct response *)ha->response_ptr; 70 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) { 71 pkt->signature = RESPONSE_PROCESSED; 72 pkt++; 73 } 74 } 75 76 /** 77 * qla4xxx_init_rings - initialize hw queues 78 * @ha: pointer to host adapter structure. 79 * 80 * This routine initializes the internal queues for the specified adapter. 81 * The QLA4010 requires us to restart the queues at index 0. 82 * The QLA4000 doesn't care, so just default to QLA4010's requirement. 83 **/ 84 int qla4xxx_init_rings(struct scsi_qla_host *ha) 85 { 86 unsigned long flags = 0; 87 int i; 88 89 /* Initialize request queue. */ 90 spin_lock_irqsave(&ha->hardware_lock, flags); 91 ha->request_out = 0; 92 ha->request_in = 0; 93 ha->request_ptr = &ha->request_ring[ha->request_in]; 94 ha->req_q_count = REQUEST_QUEUE_DEPTH; 95 96 /* Initialize response queue. */ 97 ha->response_in = 0; 98 ha->response_out = 0; 99 ha->response_ptr = &ha->response_ring[ha->response_out]; 100 101 if (is_qla8022(ha)) { 102 writel(0, 103 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out); 104 writel(0, 105 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in); 106 writel(0, 107 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out); 108 } else if (is_qla8032(ha) || is_qla8042(ha)) { 109 writel(0, 110 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in); 111 writel(0, 112 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in); 113 writel(0, 114 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out); 115 } else { 116 /* 117 * Initialize DMA Shadow registers. The firmware is really 118 * supposed to take care of this, but on some uniprocessor 119 * systems, the shadow registers aren't cleared-- causing 120 * the interrupt_handler to think there are responses to be 121 * processed when there aren't. 122 */ 123 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0); 124 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0); 125 wmb(); 126 127 writel(0, &ha->reg->req_q_in); 128 writel(0, &ha->reg->rsp_q_out); 129 readl(&ha->reg->rsp_q_out); 130 } 131 132 qla4xxx_init_response_q_entries(ha); 133 134 /* Initialize mailbox active array */ 135 for (i = 0; i < MAX_MRB; i++) 136 ha->active_mrb_array[i] = NULL; 137 138 spin_unlock_irqrestore(&ha->hardware_lock, flags); 139 140 return QLA_SUCCESS; 141 } 142 143 /** 144 * qla4xxx_get_sys_info - validate adapter MAC address(es) 145 * @ha: pointer to host adapter structure. 146 * 147 **/ 148 int qla4xxx_get_sys_info(struct scsi_qla_host *ha) 149 { 150 struct flash_sys_info *sys_info; 151 dma_addr_t sys_info_dma; 152 int status = QLA_ERROR; 153 154 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), 155 &sys_info_dma, GFP_KERNEL); 156 if (sys_info == NULL) { 157 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", 158 ha->host_no, __func__)); 159 160 goto exit_get_sys_info_no_free; 161 } 162 163 /* Get flash sys info */ 164 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, 165 sizeof(*sys_info)) != QLA_SUCCESS) { 166 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " 167 "failed\n", ha->host_no, __func__)); 168 169 goto exit_get_sys_info; 170 } 171 172 /* Save M.A.C. address & serial_number */ 173 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], 174 min(sizeof(ha->my_mac), 175 sizeof(sys_info->physAddr[0].address))); 176 memcpy(ha->serial_number, &sys_info->acSerialNumber, 177 min(sizeof(ha->serial_number), 178 sizeof(sys_info->acSerialNumber))); 179 180 status = QLA_SUCCESS; 181 182 exit_get_sys_info: 183 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, 184 sys_info_dma); 185 186 exit_get_sys_info_no_free: 187 return status; 188 } 189 190 /** 191 * qla4xxx_init_local_data - initialize adapter specific local data 192 * @ha: pointer to host adapter structure. 193 * 194 **/ 195 static void qla4xxx_init_local_data(struct scsi_qla_host *ha) 196 { 197 /* Initialize aen queue */ 198 ha->aen_q_count = MAX_AEN_ENTRIES; 199 } 200 201 static uint8_t 202 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha) 203 { 204 uint8_t ipv4_wait = 0; 205 uint8_t ipv6_wait = 0; 206 int8_t ip_address[IPv6_ADDR_LEN] = {0} ; 207 208 /* If both IPv4 & IPv6 are enabled, possibly only one 209 * IP address may be acquired, so check to see if we 210 * need to wait for another */ 211 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) { 212 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) && 213 ((ha->addl_fw_state & 214 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) { 215 ipv4_wait = 1; 216 } 217 if (((ha->ip_config.ipv6_addl_options & 218 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) && 219 ((ha->ip_config.ipv6_link_local_state == 220 IP_ADDRSTATE_ACQUIRING) || 221 (ha->ip_config.ipv6_addr0_state == 222 IP_ADDRSTATE_ACQUIRING) || 223 (ha->ip_config.ipv6_addr1_state == 224 IP_ADDRSTATE_ACQUIRING))) { 225 226 ipv6_wait = 1; 227 228 if ((ha->ip_config.ipv6_link_local_state == 229 IP_ADDRSTATE_PREFERRED) || 230 (ha->ip_config.ipv6_addr0_state == 231 IP_ADDRSTATE_PREFERRED) || 232 (ha->ip_config.ipv6_addr1_state == 233 IP_ADDRSTATE_PREFERRED)) { 234 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 235 "Preferred IP configured." 236 " Don't wait!\n", ha->host_no, 237 __func__)); 238 ipv6_wait = 0; 239 } 240 if (memcmp(&ha->ip_config.ipv6_default_router_addr, 241 ip_address, IPv6_ADDR_LEN) == 0) { 242 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 243 "No Router configured. " 244 "Don't wait!\n", ha->host_no, 245 __func__)); 246 ipv6_wait = 0; 247 } 248 if ((ha->ip_config.ipv6_default_router_state == 249 IPV6_RTRSTATE_MANUAL) && 250 (ha->ip_config.ipv6_link_local_state == 251 IP_ADDRSTATE_TENTATIVE) && 252 (memcmp(&ha->ip_config.ipv6_link_local_addr, 253 &ha->ip_config.ipv6_default_router_addr, 4) == 254 0)) { 255 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & " 256 "IP configured. Don't wait!\n", 257 ha->host_no, __func__)); 258 ipv6_wait = 0; 259 } 260 } 261 if (ipv4_wait || ipv6_wait) { 262 DEBUG2(printk("scsi%ld: %s: Wait for additional " 263 "IP(s) \"", ha->host_no, __func__)); 264 if (ipv4_wait) 265 DEBUG2(printk("IPv4 ")); 266 if (ha->ip_config.ipv6_link_local_state == 267 IP_ADDRSTATE_ACQUIRING) 268 DEBUG2(printk("IPv6LinkLocal ")); 269 if (ha->ip_config.ipv6_addr0_state == 270 IP_ADDRSTATE_ACQUIRING) 271 DEBUG2(printk("IPv6Addr0 ")); 272 if (ha->ip_config.ipv6_addr1_state == 273 IP_ADDRSTATE_ACQUIRING) 274 DEBUG2(printk("IPv6Addr1 ")); 275 DEBUG2(printk("\"\n")); 276 } 277 } 278 279 return ipv4_wait|ipv6_wait; 280 } 281 282 static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha, 283 struct qla4_8xxx_minidump_template_hdr *md_hdr) 284 { 285 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET : 286 QLA83XX_TEMPLATE_CAP_OFFSET; 287 int rval = 1; 288 uint32_t *cap_offset; 289 290 cap_offset = (uint32_t *)((char *)md_hdr + offset); 291 292 if (!(le32_to_cpu(*cap_offset) & BIT_0)) { 293 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n", 294 *cap_offset); 295 rval = 0; 296 } 297 298 return rval; 299 } 300 301 /** 302 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data. 303 * @ha: pointer to host adapter structure. 304 **/ 305 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha) 306 { 307 int status; 308 uint32_t capture_debug_level; 309 int hdr_entry_bit, k; 310 void *md_tmp; 311 dma_addr_t md_tmp_dma; 312 struct qla4_8xxx_minidump_template_hdr *md_hdr; 313 int dma_capable; 314 315 if (ha->fw_dump) { 316 ql4_printk(KERN_WARNING, ha, 317 "Firmware dump previously allocated.\n"); 318 return; 319 } 320 321 status = qla4xxx_req_template_size(ha); 322 if (status != QLA_SUCCESS) { 323 ql4_printk(KERN_INFO, ha, 324 "scsi%ld: Failed to get template size\n", 325 ha->host_no); 326 return; 327 } 328 329 clear_bit(AF_82XX_FW_DUMPED, &ha->flags); 330 331 /* Allocate memory for saving the template */ 332 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 333 &md_tmp_dma, GFP_KERNEL); 334 if (!md_tmp) { 335 ql4_printk(KERN_INFO, ha, 336 "scsi%ld: Failed to allocate DMA memory\n", 337 ha->host_no); 338 return; 339 } 340 341 /* Request template */ 342 status = qla4xxx_get_minidump_template(ha, md_tmp_dma); 343 if (status != QLA_SUCCESS) { 344 ql4_printk(KERN_INFO, ha, 345 "scsi%ld: Failed to get minidump template\n", 346 ha->host_no); 347 goto alloc_cleanup; 348 } 349 350 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp; 351 352 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr); 353 354 capture_debug_level = md_hdr->capture_debug_level; 355 356 /* Get capture mask based on module loadtime setting. */ 357 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) || 358 (ql4xmdcapmask == 0xFF && dma_capable)) { 359 ha->fw_dump_capture_mask = ql4xmdcapmask; 360 } else { 361 if (ql4xmdcapmask == 0xFF) 362 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n"); 363 ha->fw_dump_capture_mask = capture_debug_level; 364 } 365 366 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask; 367 368 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n", 369 md_hdr->num_of_entries)); 370 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n", 371 ha->fw_dump_tmplt_size)); 372 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n", 373 ha->fw_dump_capture_mask)); 374 375 /* Calculate fw_dump_size */ 376 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF); 377 hdr_entry_bit <<= 1, k++) { 378 if (hdr_entry_bit & ha->fw_dump_capture_mask) 379 ha->fw_dump_size += md_hdr->capture_size_array[k]; 380 } 381 382 /* Total firmware dump size including command header */ 383 ha->fw_dump_size += ha->fw_dump_tmplt_size; 384 ha->fw_dump = vmalloc(ha->fw_dump_size); 385 if (!ha->fw_dump) 386 goto alloc_cleanup; 387 388 DEBUG2(ql4_printk(KERN_INFO, ha, 389 "Minidump Template Size = 0x%x KB\n", 390 ha->fw_dump_tmplt_size)); 391 DEBUG2(ql4_printk(KERN_INFO, ha, 392 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size)); 393 394 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size); 395 ha->fw_dump_tmplt_hdr = ha->fw_dump; 396 397 alloc_cleanup: 398 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 399 md_tmp, md_tmp_dma); 400 } 401 402 static int qla4xxx_fw_ready(struct scsi_qla_host *ha) 403 { 404 uint32_t timeout_count; 405 int ready = 0; 406 407 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); 408 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; 409 timeout_count--) { 410 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 411 qla4xxx_get_dhcp_ip_address(ha); 412 413 /* Get firmware state. */ 414 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { 415 DEBUG2(printk("scsi%ld: %s: unable to get firmware " 416 "state\n", ha->host_no, __func__)); 417 break; 418 } 419 420 if (ha->firmware_state & FW_STATE_ERROR) { 421 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" 422 " occurred\n", ha->host_no, __func__)); 423 break; 424 425 } 426 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { 427 /* 428 * The firmware has not yet been issued an Initialize 429 * Firmware command, so issue it now. 430 */ 431 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) 432 break; 433 434 /* Go back and test for ready state - no wait. */ 435 continue; 436 } 437 438 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 439 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 440 "AUTOCONNECT in progress\n", 441 ha->host_no, __func__)); 442 } 443 444 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 445 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 446 " CONFIGURING IP\n", 447 ha->host_no, __func__)); 448 /* 449 * Check for link state after 15 secs and if link is 450 * still DOWN then, cable is unplugged. Ignore "DHCP 451 * in Progress/CONFIGURING IP" bit to check if firmware 452 * is in ready state or not after 15 secs. 453 * This is applicable for both 2.x & 3.x firmware 454 */ 455 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) { 456 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) { 457 DEBUG2(printk(KERN_INFO "scsi%ld: %s:" 458 " LINK UP (Cable plugged)\n", 459 ha->host_no, __func__)); 460 } else if (ha->firmware_state & 461 (FW_STATE_CONFIGURING_IP | 462 FW_STATE_READY)) { 463 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 464 "LINK DOWN (Cable unplugged)\n", 465 ha->host_no, __func__)); 466 ha->firmware_state = FW_STATE_READY; 467 } 468 } 469 } 470 471 if (ha->firmware_state == FW_STATE_READY) { 472 /* If DHCP IP Addr is available, retrieve it now. */ 473 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, 474 &ha->dpc_flags)) 475 qla4xxx_get_dhcp_ip_address(ha); 476 477 if (!qla4xxx_wait_for_ip_config(ha) || 478 timeout_count == 1) { 479 DEBUG2(ql4_printk(KERN_INFO, ha, 480 "Firmware Ready..\n")); 481 /* The firmware is ready to process SCSI 482 commands. */ 483 DEBUG2(ql4_printk(KERN_INFO, ha, 484 "scsi%ld: %s: MEDIA TYPE" 485 " - %s\n", ha->host_no, 486 __func__, (ha->addl_fw_state & 487 FW_ADDSTATE_OPTICAL_MEDIA) 488 != 0 ? "OPTICAL" : "COPPER")); 489 DEBUG2(ql4_printk(KERN_INFO, ha, 490 "scsi%ld: %s: DHCPv4 STATE" 491 " Enabled %s\n", ha->host_no, 492 __func__, (ha->addl_fw_state & 493 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ? 494 "YES" : "NO")); 495 DEBUG2(ql4_printk(KERN_INFO, ha, 496 "scsi%ld: %s: LINK %s\n", 497 ha->host_no, __func__, 498 (ha->addl_fw_state & 499 FW_ADDSTATE_LINK_UP) != 0 ? 500 "UP" : "DOWN")); 501 DEBUG2(ql4_printk(KERN_INFO, ha, 502 "scsi%ld: %s: iSNS Service " 503 "Started %s\n", 504 ha->host_no, __func__, 505 (ha->addl_fw_state & 506 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? 507 "YES" : "NO")); 508 509 ready = 1; 510 break; 511 } 512 } 513 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " 514 "seconds expired= %d\n", ha->host_no, __func__, 515 ha->firmware_state, ha->addl_fw_state, 516 timeout_count)); 517 if (is_qla4032(ha) && 518 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && 519 (timeout_count < ADAPTER_INIT_TOV - 5)) { 520 break; 521 } 522 523 msleep(1000); 524 } /* end of for */ 525 526 if (timeout_count <= 0) 527 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", 528 ha->host_no, __func__)); 529 530 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 531 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting " 532 "it's waiting to configure an IP address\n", 533 ha->host_no, __func__)); 534 ready = 1; 535 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 536 DEBUG2(printk("scsi%ld: %s: FW initialized, but " 537 "auto-discovery still in process\n", 538 ha->host_no, __func__)); 539 ready = 1; 540 } 541 542 return ready; 543 } 544 545 /** 546 * qla4xxx_init_firmware - initializes the firmware. 547 * @ha: pointer to host adapter structure. 548 * 549 **/ 550 static int qla4xxx_init_firmware(struct scsi_qla_host *ha) 551 { 552 int status = QLA_ERROR; 553 554 if (is_aer_supported(ha) && 555 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 556 return status; 557 558 /* For 82xx, stop firmware before initializing because if BIOS 559 * has previously initialized firmware, then driver's initialize 560 * firmware will fail. */ 561 if (is_qla80XX(ha)) 562 qla4_8xxx_stop_firmware(ha); 563 564 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); 565 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { 566 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " 567 "control block\n", ha->host_no, __func__)); 568 return status; 569 } 570 571 if (!qla4xxx_fw_ready(ha)) 572 return status; 573 574 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags)) 575 qla4xxx_alloc_fw_dump(ha); 576 577 return qla4xxx_get_firmware_status(ha); 578 } 579 580 static void qla4xxx_set_model_info(struct scsi_qla_host *ha) 581 { 582 uint16_t board_id_string[8]; 583 int i; 584 int size = sizeof(ha->nvram->isp4022.boardIdStr); 585 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2; 586 587 for (i = 0; i < (size / 2) ; i++) { 588 board_id_string[i] = rd_nvram_word(ha, offset); 589 offset += 1; 590 } 591 592 memcpy(ha->model_name, board_id_string, size); 593 } 594 595 static int qla4xxx_config_nvram(struct scsi_qla_host *ha) 596 { 597 unsigned long flags; 598 union external_hw_config_reg extHwConfig; 599 600 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, 601 __func__)); 602 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) 603 return QLA_ERROR; 604 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { 605 ql4xxx_unlock_flash(ha); 606 return QLA_ERROR; 607 } 608 609 /* Get EEPRom Parameters from NVRAM and validate */ 610 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); 611 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { 612 spin_lock_irqsave(&ha->hardware_lock, flags); 613 extHwConfig.Asuint32_t = 614 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); 615 spin_unlock_irqrestore(&ha->hardware_lock, flags); 616 } else { 617 ql4_printk(KERN_WARNING, ha, 618 "scsi%ld: %s: EEProm checksum invalid. " 619 "Please update your EEPROM\n", ha->host_no, 620 __func__); 621 622 /* Attempt to set defaults */ 623 if (is_qla4010(ha)) 624 extHwConfig.Asuint32_t = 0x1912; 625 else if (is_qla4022(ha) | is_qla4032(ha)) 626 extHwConfig.Asuint32_t = 0x0023; 627 else 628 return QLA_ERROR; 629 } 630 631 if (is_qla4022(ha) || is_qla4032(ha)) 632 qla4xxx_set_model_info(ha); 633 else 634 strcpy(ha->model_name, "QLA4010"); 635 636 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", 637 ha->host_no, __func__, extHwConfig.Asuint32_t)); 638 639 spin_lock_irqsave(&ha->hardware_lock, flags); 640 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); 641 readl(isp_ext_hw_conf(ha)); 642 spin_unlock_irqrestore(&ha->hardware_lock, flags); 643 644 ql4xxx_unlock_nvram(ha); 645 ql4xxx_unlock_flash(ha); 646 647 return QLA_SUCCESS; 648 } 649 650 /** 651 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. 652 * @ha: HA context 653 */ 654 void qla4_8xxx_pci_config(struct scsi_qla_host *ha) 655 { 656 pci_set_master(ha->pdev); 657 } 658 659 void qla4xxx_pci_config(struct scsi_qla_host *ha) 660 { 661 uint16_t w; 662 int status; 663 664 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 665 666 pci_set_master(ha->pdev); 667 status = pci_set_mwi(ha->pdev); 668 if (status) 669 ql4_printk(KERN_WARNING, ha, "Failed to set MWI\n"); 670 671 /* 672 * We want to respect framework's setting of PCI configuration space 673 * command register and also want to make sure that all bits of 674 * interest to us are properly set in command register. 675 */ 676 pci_read_config_word(ha->pdev, PCI_COMMAND, &w); 677 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; 678 w &= ~PCI_COMMAND_INTX_DISABLE; 679 pci_write_config_word(ha->pdev, PCI_COMMAND, w); 680 } 681 682 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) 683 { 684 int status = QLA_ERROR; 685 unsigned long max_wait_time; 686 unsigned long flags; 687 uint32_t mbox_status; 688 689 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n"); 690 691 /* 692 * Start firmware from flash ROM 693 * 694 * WORKAROUND: Stuff a non-constant value that the firmware can 695 * use as a seed for a random number generator in MB7 prior to 696 * setting BOOT_ENABLE. Fixes problem where the TCP 697 * connections use the same TCP ports after each reboot, 698 * causing some connections to not get re-established. 699 */ 700 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", 701 ha->host_no, __func__)); 702 703 spin_lock_irqsave(&ha->hardware_lock, flags); 704 writel(jiffies, &ha->reg->mailbox[7]); 705 if (is_qla4022(ha) | is_qla4032(ha)) 706 writel(set_rmask(NVR_WRITE_ENABLE), 707 &ha->reg->u1.isp4022.nvram); 708 709 writel(2, &ha->reg->mailbox[6]); 710 readl(&ha->reg->mailbox[6]); 711 712 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); 713 readl(&ha->reg->ctrl_status); 714 spin_unlock_irqrestore(&ha->hardware_lock, flags); 715 716 /* Wait for firmware to come UP. */ 717 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for " 718 "boot firmware to complete...\n", 719 ha->host_no, __func__, FIRMWARE_UP_TOV)); 720 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ); 721 do { 722 uint32_t ctrl_status; 723 724 spin_lock_irqsave(&ha->hardware_lock, flags); 725 ctrl_status = readw(&ha->reg->ctrl_status); 726 mbox_status = readw(&ha->reg->mailbox[0]); 727 spin_unlock_irqrestore(&ha->hardware_lock, flags); 728 729 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) 730 break; 731 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) 732 break; 733 734 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot " 735 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n", 736 ha->host_no, __func__, ctrl_status, max_wait_time)); 737 738 msleep_interruptible(250); 739 } while (!time_after_eq(jiffies, max_wait_time)); 740 741 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { 742 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n", 743 ha->host_no, __func__)); 744 745 spin_lock_irqsave(&ha->hardware_lock, flags); 746 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 747 &ha->reg->ctrl_status); 748 readl(&ha->reg->ctrl_status); 749 spin_unlock_irqrestore(&ha->hardware_lock, flags); 750 751 status = QLA_SUCCESS; 752 } else { 753 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " 754 "- mbox status 0x%x\n", ha->host_no, __func__, 755 mbox_status); 756 status = QLA_ERROR; 757 } 758 return status; 759 } 760 761 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) 762 { 763 #define QL4_LOCK_DRVR_WAIT 60 764 #define QL4_LOCK_DRVR_SLEEP 1 765 766 int drvr_wait = QL4_LOCK_DRVR_WAIT; 767 while (drvr_wait) { 768 if (ql4xxx_lock_drvr(a) == 0) { 769 ssleep(QL4_LOCK_DRVR_SLEEP); 770 DEBUG2(printk("scsi%ld: %s: Waiting for " 771 "Global Init Semaphore(%d)...\n", 772 a->host_no, 773 __func__, drvr_wait)); 774 drvr_wait -= QL4_LOCK_DRVR_SLEEP; 775 } else { 776 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " 777 "acquired\n", a->host_no, __func__)); 778 return QLA_SUCCESS; 779 } 780 } 781 return QLA_ERROR; 782 } 783 784 /** 785 * qla4xxx_start_firmware - starts qla4xxx firmware 786 * @ha: Pointer to host adapter structure. 787 * 788 * This routine performs the necessary steps to start the firmware for 789 * the QLA4010 adapter. 790 **/ 791 int qla4xxx_start_firmware(struct scsi_qla_host *ha) 792 { 793 unsigned long flags = 0; 794 uint32_t mbox_status; 795 int status = QLA_ERROR; 796 int soft_reset = 1; 797 int config_chip = 0; 798 799 if (is_qla4022(ha) | is_qla4032(ha)) 800 ql4xxx_set_mac_number(ha); 801 802 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 803 return QLA_ERROR; 804 805 spin_lock_irqsave(&ha->hardware_lock, flags); 806 807 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, 808 __func__, readw(isp_port_ctrl(ha)))); 809 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, 810 __func__, readw(isp_port_status(ha)))); 811 812 /* Is Hardware already initialized? */ 813 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { 814 DEBUG(printk("scsi%ld: %s: Hardware has already been " 815 "initialized\n", ha->host_no, __func__)); 816 817 /* Receive firmware boot acknowledgement */ 818 mbox_status = readw(&ha->reg->mailbox[0]); 819 820 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " 821 "0x%x\n", ha->host_no, __func__, mbox_status)); 822 823 /* Is firmware already booted? */ 824 if (mbox_status == 0) { 825 /* F/W not running, must be config by net driver */ 826 config_chip = 1; 827 soft_reset = 0; 828 } else { 829 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 830 &ha->reg->ctrl_status); 831 readl(&ha->reg->ctrl_status); 832 writel(set_rmask(CSR_SCSI_COMPLETION_INTR), 833 &ha->reg->ctrl_status); 834 readl(&ha->reg->ctrl_status); 835 spin_unlock_irqrestore(&ha->hardware_lock, flags); 836 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { 837 DEBUG2(printk("scsi%ld: %s: Get firmware " 838 "state -- state = 0x%x\n", 839 ha->host_no, 840 __func__, ha->firmware_state)); 841 /* F/W is running */ 842 if (ha->firmware_state & 843 FW_STATE_CONFIG_WAIT) { 844 DEBUG2(printk("scsi%ld: %s: Firmware " 845 "in known state -- " 846 "config and " 847 "boot, state = 0x%x\n", 848 ha->host_no, __func__, 849 ha->firmware_state)); 850 config_chip = 1; 851 soft_reset = 0; 852 } 853 } else { 854 DEBUG2(printk("scsi%ld: %s: Firmware in " 855 "unknown state -- resetting," 856 " state = " 857 "0x%x\n", ha->host_no, __func__, 858 ha->firmware_state)); 859 } 860 spin_lock_irqsave(&ha->hardware_lock, flags); 861 } 862 } else { 863 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " 864 "started - resetting\n", ha->host_no, __func__)); 865 } 866 spin_unlock_irqrestore(&ha->hardware_lock, flags); 867 868 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", 869 ha->host_no, __func__, soft_reset, config_chip)); 870 if (soft_reset) { 871 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, 872 __func__)); 873 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr 874 * lock again, but ok */ 875 if (status == QLA_ERROR) { 876 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", 877 ha->host_no, __func__)); 878 ql4xxx_unlock_drvr(ha); 879 return QLA_ERROR; 880 } 881 config_chip = 1; 882 883 /* Reset clears the semaphore, so acquire again */ 884 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 885 return QLA_ERROR; 886 } 887 888 if (config_chip) { 889 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) 890 status = qla4xxx_start_firmware_from_flash(ha); 891 } 892 893 ql4xxx_unlock_drvr(ha); 894 if (status == QLA_SUCCESS) { 895 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) 896 qla4xxx_get_crash_record(ha); 897 898 qla4xxx_init_rings(ha); 899 } else { 900 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", 901 ha->host_no, __func__)); 902 } 903 return status; 904 } 905 /** 906 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware 907 * @ha: pointer to adapter structure 908 * 909 * Since firmware is not running in autoconnect mode the DDB indices should 910 * be freed so that when login happens from user space there are free DDB 911 * indices available. 912 **/ 913 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) 914 { 915 int max_ddbs; 916 int ret; 917 uint32_t idx = 0, next_idx = 0; 918 uint32_t state = 0, conn_err = 0; 919 920 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 921 MAX_DEV_DB_ENTRIES; 922 923 for (idx = 0; idx < max_ddbs; idx = next_idx) { 924 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 925 &next_idx, &state, &conn_err, 926 NULL, NULL); 927 if (ret == QLA_ERROR) { 928 next_idx++; 929 continue; 930 } 931 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 932 state == DDB_DS_SESSION_FAILED) { 933 DEBUG2(ql4_printk(KERN_INFO, ha, 934 "Freeing DDB index = 0x%x\n", idx)); 935 ret = qla4xxx_clear_ddb_entry(ha, idx); 936 if (ret == QLA_ERROR) 937 ql4_printk(KERN_ERR, ha, 938 "Unable to clear DDB index = " 939 "0x%x\n", idx); 940 } 941 if (next_idx == 0) 942 break; 943 } 944 } 945 946 /** 947 * qla4xxx_initialize_adapter - initiailizes hba 948 * @ha: Pointer to host adapter structure. 949 * @is_reset: Is this init path or reset path 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 * @conn_err: Unused 1165 * 1166 * This routine processes a Decive Database Changed AEN Event. 1167 **/ 1168 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, 1169 uint32_t fw_ddb_index, 1170 uint32_t state, uint32_t conn_err) 1171 { 1172 struct ddb_entry *ddb_entry; 1173 int status = QLA_ERROR; 1174 1175 /* check for out of range index */ 1176 if (fw_ddb_index >= MAX_DDB_ENTRIES) 1177 goto exit_ddb_event; 1178 1179 /* Get the corresponging ddb entry */ 1180 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); 1181 /* Device does not currently exist in our database. */ 1182 if (ddb_entry == NULL) { 1183 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", 1184 __func__, fw_ddb_index); 1185 1186 if (state == DDB_DS_NO_CONNECTION_ACTIVE) 1187 clear_bit(fw_ddb_index, ha->ddb_idx_map); 1188 1189 goto exit_ddb_event; 1190 } 1191 1192 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state); 1193 1194 exit_ddb_event: 1195 return status; 1196 } 1197 1198 /** 1199 * qla4xxx_login_flash_ddb - Login to target (DDB) 1200 * @cls_session: Pointer to the session to login 1201 * 1202 * This routine logins to the target. 1203 * Issues setddb and conn open mbx 1204 **/ 1205 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session) 1206 { 1207 struct iscsi_session *sess; 1208 struct ddb_entry *ddb_entry; 1209 struct scsi_qla_host *ha; 1210 struct dev_db_entry *fw_ddb_entry = NULL; 1211 dma_addr_t fw_ddb_dma; 1212 uint32_t mbx_sts = 0; 1213 int ret; 1214 1215 sess = cls_session->dd_data; 1216 ddb_entry = sess->dd_data; 1217 ha = ddb_entry->ha; 1218 1219 if (!test_bit(AF_LINK_UP, &ha->flags)) 1220 return; 1221 1222 if (ddb_entry->ddb_type != FLASH_DDB) { 1223 DEBUG2(ql4_printk(KERN_INFO, ha, 1224 "Skipping login to non FLASH DB")); 1225 goto exit_login; 1226 } 1227 1228 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 1229 &fw_ddb_dma); 1230 if (fw_ddb_entry == NULL) { 1231 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 1232 goto exit_login; 1233 } 1234 1235 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) { 1236 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index); 1237 if (ret == QLA_ERROR) 1238 goto exit_login; 1239 1240 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1241 ha->tot_ddbs++; 1242 } 1243 1244 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry, 1245 sizeof(struct dev_db_entry)); 1246 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index; 1247 1248 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 1249 fw_ddb_dma, &mbx_sts); 1250 if (ret == QLA_ERROR) { 1251 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n")); 1252 goto exit_login; 1253 } 1254 1255 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1256 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1257 if (ret == QLA_ERROR) { 1258 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 1259 sess->targetname); 1260 goto exit_login; 1261 } 1262 1263 exit_login: 1264 if (fw_ddb_entry) 1265 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 1266 } 1267 1268