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 14static 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 **/ 50void 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 **/ 66static 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 **/ 86int 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 **/ 150int 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 185exit_get_sys_info: 186 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, 187 sys_info_dma); 188 189exit_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 **/ 198static 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 204static uint8_t 205qla4xxx_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 285static 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 **/ 308void 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 if (!md_tmp) { 338 ql4_printk(KERN_INFO, ha, 339 "scsi%ld: Failed to allocate DMA memory\n", 340 ha->host_no); 341 return; 342 } 343 344 /* Request template */ 345 status = qla4xxx_get_minidump_template(ha, md_tmp_dma); 346 if (status != QLA_SUCCESS) { 347 ql4_printk(KERN_INFO, ha, 348 "scsi%ld: Failed to get minidump template\n", 349 ha->host_no); 350 goto alloc_cleanup; 351 } 352 353 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp; 354 355 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr); 356 357 capture_debug_level = md_hdr->capture_debug_level; 358 359 /* Get capture mask based on module loadtime setting. */ 360 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) || 361 (ql4xmdcapmask == 0xFF && dma_capable)) { 362 ha->fw_dump_capture_mask = ql4xmdcapmask; 363 } else { 364 if (ql4xmdcapmask == 0xFF) 365 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n"); 366 ha->fw_dump_capture_mask = capture_debug_level; 367 } 368 369 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask; 370 371 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n", 372 md_hdr->num_of_entries)); 373 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n", 374 ha->fw_dump_tmplt_size)); 375 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n", 376 ha->fw_dump_capture_mask)); 377 378 /* Calculate fw_dump_size */ 379 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF); 380 hdr_entry_bit <<= 1, k++) { 381 if (hdr_entry_bit & ha->fw_dump_capture_mask) 382 ha->fw_dump_size += md_hdr->capture_size_array[k]; 383 } 384 385 /* Total firmware dump size including command header */ 386 ha->fw_dump_size += ha->fw_dump_tmplt_size; 387 ha->fw_dump = vmalloc(ha->fw_dump_size); 388 if (!ha->fw_dump) 389 goto alloc_cleanup; 390 391 DEBUG2(ql4_printk(KERN_INFO, ha, 392 "Minidump Tempalate Size = 0x%x KB\n", 393 ha->fw_dump_tmplt_size)); 394 DEBUG2(ql4_printk(KERN_INFO, ha, 395 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size)); 396 397 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size); 398 ha->fw_dump_tmplt_hdr = ha->fw_dump; 399 400alloc_cleanup: 401 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 402 md_tmp, md_tmp_dma); 403} 404 405static int qla4xxx_fw_ready(struct scsi_qla_host *ha) 406{ 407 uint32_t timeout_count; 408 int ready = 0; 409 410 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); 411 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; 412 timeout_count--) { 413 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 414 qla4xxx_get_dhcp_ip_address(ha); 415 416 /* Get firmware state. */ 417 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { 418 DEBUG2(printk("scsi%ld: %s: unable to get firmware " 419 "state\n", ha->host_no, __func__)); 420 break; 421 } 422 423 if (ha->firmware_state & FW_STATE_ERROR) { 424 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" 425 " occurred\n", ha->host_no, __func__)); 426 break; 427 428 } 429 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { 430 /* 431 * The firmware has not yet been issued an Initialize 432 * Firmware command, so issue it now. 433 */ 434 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) 435 break; 436 437 /* Go back and test for ready state - no wait. */ 438 continue; 439 } 440 441 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 442 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 443 "AUTOCONNECT in progress\n", 444 ha->host_no, __func__)); 445 } 446 447 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 448 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 449 " CONFIGURING IP\n", 450 ha->host_no, __func__)); 451 /* 452 * Check for link state after 15 secs and if link is 453 * still DOWN then, cable is unplugged. Ignore "DHCP 454 * in Progress/CONFIGURING IP" bit to check if firmware 455 * is in ready state or not after 15 secs. 456 * This is applicable for both 2.x & 3.x firmware 457 */ 458 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) { 459 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) { 460 DEBUG2(printk(KERN_INFO "scsi%ld: %s:" 461 " LINK UP (Cable plugged)\n", 462 ha->host_no, __func__)); 463 } else if (ha->firmware_state & 464 (FW_STATE_CONFIGURING_IP | 465 FW_STATE_READY)) { 466 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 467 "LINK DOWN (Cable unplugged)\n", 468 ha->host_no, __func__)); 469 ha->firmware_state = FW_STATE_READY; 470 } 471 } 472 } 473 474 if (ha->firmware_state == FW_STATE_READY) { 475 /* If DHCP IP Addr is available, retrieve it now. */ 476 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, 477 &ha->dpc_flags)) 478 qla4xxx_get_dhcp_ip_address(ha); 479 480 if (!qla4xxx_wait_for_ip_config(ha) || 481 timeout_count == 1) { 482 DEBUG2(ql4_printk(KERN_INFO, ha, 483 "Firmware Ready..\n")); 484 /* The firmware is ready to process SCSI 485 commands. */ 486 DEBUG2(ql4_printk(KERN_INFO, ha, 487 "scsi%ld: %s: MEDIA TYPE" 488 " - %s\n", ha->host_no, 489 __func__, (ha->addl_fw_state & 490 FW_ADDSTATE_OPTICAL_MEDIA) 491 != 0 ? "OPTICAL" : "COPPER")); 492 DEBUG2(ql4_printk(KERN_INFO, ha, 493 "scsi%ld: %s: DHCPv4 STATE" 494 " Enabled %s\n", ha->host_no, 495 __func__, (ha->addl_fw_state & 496 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ? 497 "YES" : "NO")); 498 DEBUG2(ql4_printk(KERN_INFO, ha, 499 "scsi%ld: %s: LINK %s\n", 500 ha->host_no, __func__, 501 (ha->addl_fw_state & 502 FW_ADDSTATE_LINK_UP) != 0 ? 503 "UP" : "DOWN")); 504 DEBUG2(ql4_printk(KERN_INFO, ha, 505 "scsi%ld: %s: iSNS Service " 506 "Started %s\n", 507 ha->host_no, __func__, 508 (ha->addl_fw_state & 509 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? 510 "YES" : "NO")); 511 512 ready = 1; 513 break; 514 } 515 } 516 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " 517 "seconds expired= %d\n", ha->host_no, __func__, 518 ha->firmware_state, ha->addl_fw_state, 519 timeout_count)); 520 if (is_qla4032(ha) && 521 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && 522 (timeout_count < ADAPTER_INIT_TOV - 5)) { 523 break; 524 } 525 526 msleep(1000); 527 } /* end of for */ 528 529 if (timeout_count <= 0) 530 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", 531 ha->host_no, __func__)); 532 533 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 534 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting " 535 "it's waiting to configure an IP address\n", 536 ha->host_no, __func__)); 537 ready = 1; 538 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 539 DEBUG2(printk("scsi%ld: %s: FW initialized, but " 540 "auto-discovery still in process\n", 541 ha->host_no, __func__)); 542 ready = 1; 543 } 544 545 return ready; 546} 547 548/** 549 * qla4xxx_init_firmware - initializes the firmware. 550 * @ha: pointer to host adapter structure. 551 * 552 **/ 553static int qla4xxx_init_firmware(struct scsi_qla_host *ha) 554{ 555 int status = QLA_ERROR; 556 557 if (is_aer_supported(ha) && 558 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 559 return status; 560 561 /* For 82xx, stop firmware before initializing because if BIOS 562 * has previously initialized firmware, then driver's initialize 563 * firmware will fail. */ 564 if (is_qla80XX(ha)) 565 qla4_8xxx_stop_firmware(ha); 566 567 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); 568 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { 569 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " 570 "control block\n", ha->host_no, __func__)); 571 return status; 572 } 573 574 if (!qla4xxx_fw_ready(ha)) 575 return status; 576 577 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags)) 578 qla4xxx_alloc_fw_dump(ha); 579 580 return qla4xxx_get_firmware_status(ha); 581} 582 583static void qla4xxx_set_model_info(struct scsi_qla_host *ha) 584{ 585 uint16_t board_id_string[8]; 586 int i; 587 int size = sizeof(ha->nvram->isp4022.boardIdStr); 588 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2; 589 590 for (i = 0; i < (size / 2) ; i++) { 591 board_id_string[i] = rd_nvram_word(ha, offset); 592 offset += 1; 593 } 594 595 memcpy(ha->model_name, board_id_string, size); 596} 597 598static int qla4xxx_config_nvram(struct scsi_qla_host *ha) 599{ 600 unsigned long flags; 601 union external_hw_config_reg extHwConfig; 602 603 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, 604 __func__)); 605 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) 606 return QLA_ERROR; 607 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { 608 ql4xxx_unlock_flash(ha); 609 return QLA_ERROR; 610 } 611 612 /* Get EEPRom Parameters from NVRAM and validate */ 613 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); 614 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { 615 spin_lock_irqsave(&ha->hardware_lock, flags); 616 extHwConfig.Asuint32_t = 617 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); 618 spin_unlock_irqrestore(&ha->hardware_lock, flags); 619 } else { 620 ql4_printk(KERN_WARNING, ha, 621 "scsi%ld: %s: EEProm checksum invalid. " 622 "Please update your EEPROM\n", ha->host_no, 623 __func__); 624 625 /* Attempt to set defaults */ 626 if (is_qla4010(ha)) 627 extHwConfig.Asuint32_t = 0x1912; 628 else if (is_qla4022(ha) | is_qla4032(ha)) 629 extHwConfig.Asuint32_t = 0x0023; 630 else 631 return QLA_ERROR; 632 } 633 634 if (is_qla4022(ha) || is_qla4032(ha)) 635 qla4xxx_set_model_info(ha); 636 else 637 strcpy(ha->model_name, "QLA4010"); 638 639 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", 640 ha->host_no, __func__, extHwConfig.Asuint32_t)); 641 642 spin_lock_irqsave(&ha->hardware_lock, flags); 643 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); 644 readl(isp_ext_hw_conf(ha)); 645 spin_unlock_irqrestore(&ha->hardware_lock, flags); 646 647 ql4xxx_unlock_nvram(ha); 648 ql4xxx_unlock_flash(ha); 649 650 return QLA_SUCCESS; 651} 652 653/** 654 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. 655 * @ha: HA context 656 */ 657void qla4_8xxx_pci_config(struct scsi_qla_host *ha) 658{ 659 pci_set_master(ha->pdev); 660} 661 662void qla4xxx_pci_config(struct scsi_qla_host *ha) 663{ 664 uint16_t w; 665 int status; 666 667 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 668 669 pci_set_master(ha->pdev); 670 status = pci_set_mwi(ha->pdev); 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 682static 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 761int 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 if (drvr_wait) { 771 DEBUG2(printk("scsi%ld: %s: Waiting for " 772 "Global Init Semaphore(%d)...\n", 773 a->host_no, 774 __func__, drvr_wait)); 775 } 776 drvr_wait -= QL4_LOCK_DRVR_SLEEP; 777 } else { 778 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " 779 "acquired\n", a->host_no, __func__)); 780 return QLA_SUCCESS; 781 } 782 } 783 return QLA_ERROR; 784} 785 786/** 787 * qla4xxx_start_firmware - starts qla4xxx firmware 788 * @ha: Pointer to host adapter structure. 789 * 790 * This routine performs the necessary steps to start the firmware for 791 * the QLA4010 adapter. 792 **/ 793int qla4xxx_start_firmware(struct scsi_qla_host *ha) 794{ 795 unsigned long flags = 0; 796 uint32_t mbox_status; 797 int status = QLA_ERROR; 798 int soft_reset = 1; 799 int config_chip = 0; 800 801 if (is_qla4022(ha) | is_qla4032(ha)) 802 ql4xxx_set_mac_number(ha); 803 804 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 805 return QLA_ERROR; 806 807 spin_lock_irqsave(&ha->hardware_lock, flags); 808 809 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, 810 __func__, readw(isp_port_ctrl(ha)))); 811 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, 812 __func__, readw(isp_port_status(ha)))); 813 814 /* Is Hardware already initialized? */ 815 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { 816 DEBUG(printk("scsi%ld: %s: Hardware has already been " 817 "initialized\n", ha->host_no, __func__)); 818 819 /* Receive firmware boot acknowledgement */ 820 mbox_status = readw(&ha->reg->mailbox[0]); 821 822 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " 823 "0x%x\n", ha->host_no, __func__, mbox_status)); 824 825 /* Is firmware already booted? */ 826 if (mbox_status == 0) { 827 /* F/W not running, must be config by net driver */ 828 config_chip = 1; 829 soft_reset = 0; 830 } else { 831 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 832 &ha->reg->ctrl_status); 833 readl(&ha->reg->ctrl_status); 834 writel(set_rmask(CSR_SCSI_COMPLETION_INTR), 835 &ha->reg->ctrl_status); 836 readl(&ha->reg->ctrl_status); 837 spin_unlock_irqrestore(&ha->hardware_lock, flags); 838 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { 839 DEBUG2(printk("scsi%ld: %s: Get firmware " 840 "state -- state = 0x%x\n", 841 ha->host_no, 842 __func__, ha->firmware_state)); 843 /* F/W is running */ 844 if (ha->firmware_state & 845 FW_STATE_CONFIG_WAIT) { 846 DEBUG2(printk("scsi%ld: %s: Firmware " 847 "in known state -- " 848 "config and " 849 "boot, state = 0x%x\n", 850 ha->host_no, __func__, 851 ha->firmware_state)); 852 config_chip = 1; 853 soft_reset = 0; 854 } 855 } else { 856 DEBUG2(printk("scsi%ld: %s: Firmware in " 857 "unknown state -- resetting," 858 " state = " 859 "0x%x\n", ha->host_no, __func__, 860 ha->firmware_state)); 861 } 862 spin_lock_irqsave(&ha->hardware_lock, flags); 863 } 864 } else { 865 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " 866 "started - resetting\n", ha->host_no, __func__)); 867 } 868 spin_unlock_irqrestore(&ha->hardware_lock, flags); 869 870 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", 871 ha->host_no, __func__, soft_reset, config_chip)); 872 if (soft_reset) { 873 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, 874 __func__)); 875 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr 876 * lock again, but ok */ 877 if (status == QLA_ERROR) { 878 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", 879 ha->host_no, __func__)); 880 ql4xxx_unlock_drvr(ha); 881 return QLA_ERROR; 882 } 883 config_chip = 1; 884 885 /* Reset clears the semaphore, so acquire again */ 886 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 887 return QLA_ERROR; 888 } 889 890 if (config_chip) { 891 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) 892 status = qla4xxx_start_firmware_from_flash(ha); 893 } 894 895 ql4xxx_unlock_drvr(ha); 896 if (status == QLA_SUCCESS) { 897 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) 898 qla4xxx_get_crash_record(ha); 899 900 qla4xxx_init_rings(ha); 901 } else { 902 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", 903 ha->host_no, __func__)); 904 } 905 return status; 906} 907/** 908 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware 909 * @ha: pointer to adapter structure 910 * 911 * Since firmware is not running in autoconnect mode the DDB indices should 912 * be freed so that when login happens from user space there are free DDB 913 * indices available. 914 **/ 915void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) 916{ 917 int max_ddbs; 918 int ret; 919 uint32_t idx = 0, next_idx = 0; 920 uint32_t state = 0, conn_err = 0; 921 922 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 923 MAX_DEV_DB_ENTRIES; 924 925 for (idx = 0; idx < max_ddbs; idx = next_idx) { 926 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 927 &next_idx, &state, &conn_err, 928 NULL, NULL); 929 if (ret == QLA_ERROR) { 930 next_idx++; 931 continue; 932 } 933 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 934 state == DDB_DS_SESSION_FAILED) { 935 DEBUG2(ql4_printk(KERN_INFO, ha, 936 "Freeing DDB index = 0x%x\n", idx)); 937 ret = qla4xxx_clear_ddb_entry(ha, idx); 938 if (ret == QLA_ERROR) 939 ql4_printk(KERN_ERR, ha, 940 "Unable to clear DDB index = " 941 "0x%x\n", idx); 942 } 943 if (next_idx == 0) 944 break; 945 } 946} 947 948/** 949 * qla4xxx_initialize_adapter - initiailizes hba 950 * @ha: Pointer to host adapter structure. 951 * 952 * This routine parforms all of the steps necessary to initialize the adapter. 953 * 954 **/ 955int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset) 956{ 957 int status = QLA_ERROR; 958 959 ha->eeprom_cmd_data = 0; 960 961 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 962 ha->isp_ops->pci_config(ha); 963 964 ha->isp_ops->disable_intrs(ha); 965 966 /* Initialize the Host adapter request/response queues and firmware */ 967 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) 968 goto exit_init_hba; 969 970 /* 971 * For ISP83XX, mailbox and IOCB interrupts are enabled separately. 972 * Mailbox interrupts must be enabled prior to issuing any mailbox 973 * command in order to prevent the possibility of losing interrupts 974 * while switching from polling to interrupt mode. IOCB interrupts are 975 * enabled via isp_ops->enable_intrs. 976 */ 977 if (is_qla8032(ha) || is_qla8042(ha)) 978 qla4_83xx_enable_mbox_intrs(ha); 979 980 if (qla4xxx_about_firmware(ha) == QLA_ERROR) 981 goto exit_init_hba; 982 983 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR) 984 goto exit_init_hba; 985 986 qla4xxx_init_local_data(ha); 987 988 status = qla4xxx_init_firmware(ha); 989 if (status == QLA_ERROR) 990 goto exit_init_hba; 991 992 if (is_reset == RESET_ADAPTER) 993 qla4xxx_build_ddb_list(ha, is_reset); 994 995 set_bit(AF_ONLINE, &ha->flags); 996 997exit_init_hba: 998 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, 999 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 1000 return status; 1001} 1002 1003int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1004 struct ddb_entry *ddb_entry, uint32_t state) 1005{ 1006 uint32_t old_fw_ddb_device_state; 1007 int status = QLA_ERROR; 1008 1009 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1010 DEBUG2(ql4_printk(KERN_INFO, ha, 1011 "%s: DDB - old state = 0x%x, new state = 0x%x for " 1012 "index [%d]\n", __func__, 1013 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1014 1015 ddb_entry->fw_ddb_device_state = state; 1016 1017 switch (old_fw_ddb_device_state) { 1018 case DDB_DS_LOGIN_IN_PROCESS: 1019 switch (state) { 1020 case DDB_DS_SESSION_ACTIVE: 1021 case DDB_DS_DISCOVERY: 1022 qla4xxx_update_session_conn_param(ha, ddb_entry); 1023 ddb_entry->unblock_sess(ddb_entry->sess); 1024 status = QLA_SUCCESS; 1025 break; 1026 case DDB_DS_SESSION_FAILED: 1027 case DDB_DS_NO_CONNECTION_ACTIVE: 1028 iscsi_conn_login_event(ddb_entry->conn, 1029 ISCSI_CONN_STATE_FREE); 1030 status = QLA_SUCCESS; 1031 break; 1032 } 1033 break; 1034 case DDB_DS_SESSION_ACTIVE: 1035 case DDB_DS_DISCOVERY: 1036 switch (state) { 1037 case DDB_DS_SESSION_FAILED: 1038 /* 1039 * iscsi_session failure will cause userspace to 1040 * stop the connection which in turn would block the 1041 * iscsi_session and start relogin 1042 */ 1043 iscsi_session_failure(ddb_entry->sess->dd_data, 1044 ISCSI_ERR_CONN_FAILED); 1045 status = QLA_SUCCESS; 1046 break; 1047 case DDB_DS_NO_CONNECTION_ACTIVE: 1048 clear_bit(fw_ddb_index, ha->ddb_idx_map); 1049 status = QLA_SUCCESS; 1050 break; 1051 } 1052 break; 1053 case DDB_DS_SESSION_FAILED: 1054 switch (state) { 1055 case DDB_DS_SESSION_ACTIVE: 1056 case DDB_DS_DISCOVERY: 1057 ddb_entry->unblock_sess(ddb_entry->sess); 1058 qla4xxx_update_session_conn_param(ha, ddb_entry); 1059 status = QLA_SUCCESS; 1060 break; 1061 case DDB_DS_SESSION_FAILED: 1062 iscsi_session_failure(ddb_entry->sess->dd_data, 1063 ISCSI_ERR_CONN_FAILED); 1064 status = QLA_SUCCESS; 1065 break; 1066 } 1067 break; 1068 default: 1069 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", 1070 __func__)); 1071 break; 1072 } 1073 return status; 1074} 1075 1076void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry) 1077{ 1078 /* 1079 * This triggers a relogin. After the relogin_timer 1080 * expires, the relogin gets scheduled. We must wait a 1081 * minimum amount of time since receiving an 0x8014 AEN 1082 * with failed device_state or a logout response before 1083 * we can issue another relogin. 1084 * 1085 * Firmware pads this timeout: (time2wait +1). 1086 * Driver retry to login should be longer than F/W. 1087 * Otherwise F/W will fail 1088 * set_ddb() mbx cmd with 0x4005 since it still 1089 * counting down its time2wait. 1090 */ 1091 atomic_set(&ddb_entry->relogin_timer, 0); 1092 atomic_set(&ddb_entry->retry_relogin_timer, 1093 ddb_entry->default_time2wait + 4); 1094 1095} 1096 1097int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1098 struct ddb_entry *ddb_entry, uint32_t state) 1099{ 1100 uint32_t old_fw_ddb_device_state; 1101 int status = QLA_ERROR; 1102 1103 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1104 DEBUG2(ql4_printk(KERN_INFO, ha, 1105 "%s: DDB - old state = 0x%x, new state = 0x%x for " 1106 "index [%d]\n", __func__, 1107 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1108 1109 ddb_entry->fw_ddb_device_state = state; 1110 1111 switch (old_fw_ddb_device_state) { 1112 case DDB_DS_LOGIN_IN_PROCESS: 1113 case DDB_DS_NO_CONNECTION_ACTIVE: 1114 switch (state) { 1115 case DDB_DS_SESSION_ACTIVE: 1116 ddb_entry->unblock_sess(ddb_entry->sess); 1117 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); 1118 status = QLA_SUCCESS; 1119 break; 1120 case DDB_DS_SESSION_FAILED: 1121 iscsi_block_session(ddb_entry->sess); 1122 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1123 qla4xxx_arm_relogin_timer(ddb_entry); 1124 status = QLA_SUCCESS; 1125 break; 1126 } 1127 break; 1128 case DDB_DS_SESSION_ACTIVE: 1129 switch (state) { 1130 case DDB_DS_SESSION_FAILED: 1131 iscsi_block_session(ddb_entry->sess); 1132 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1133 qla4xxx_arm_relogin_timer(ddb_entry); 1134 status = QLA_SUCCESS; 1135 break; 1136 } 1137 break; 1138 case DDB_DS_SESSION_FAILED: 1139 switch (state) { 1140 case DDB_DS_SESSION_ACTIVE: 1141 ddb_entry->unblock_sess(ddb_entry->sess); 1142 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); 1143 status = QLA_SUCCESS; 1144 break; 1145 case DDB_DS_SESSION_FAILED: 1146 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1147 qla4xxx_arm_relogin_timer(ddb_entry); 1148 status = QLA_SUCCESS; 1149 break; 1150 } 1151 break; 1152 default: 1153 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", 1154 __func__)); 1155 break; 1156 } 1157 return status; 1158} 1159 1160/** 1161 * qla4xxx_process_ddb_changed - process ddb state change 1162 * @ha - Pointer to host adapter structure. 1163 * @fw_ddb_index - Firmware's device database index 1164 * @state - Device state 1165 * 1166 * This routine processes a Decive Database Changed AEN Event. 1167 **/ 1168int 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 1194exit_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 **/ 1205void 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 1263exit_login: 1264 if (fw_ddb_entry) 1265 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 1266} 1267 1268