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