1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * QLogic iSCSI HBA Driver 4 * Copyright (c) 2003-2013 QLogic Corporation 5 */ 6 7#include <scsi/iscsi_if.h> 8#include "ql4_def.h" 9#include "ql4_glbl.h" 10#include "ql4_dbg.h" 11#include "ql4_inline.h" 12 13static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) 14{ 15 uint32_t value; 16 unsigned long flags; 17 18 /* Get the function number */ 19 spin_lock_irqsave(&ha->hardware_lock, flags); 20 value = readw(&ha->reg->ctrl_status); 21 spin_unlock_irqrestore(&ha->hardware_lock, flags); 22 23 switch (value & ISP_CONTROL_FN_MASK) { 24 case ISP_CONTROL_FN0_SCSI: 25 ha->mac_index = 1; 26 break; 27 case ISP_CONTROL_FN1_SCSI: 28 ha->mac_index = 3; 29 break; 30 default: 31 DEBUG2(printk("scsi%ld: %s: Invalid function number, " 32 "ispControlStatus = 0x%x\n", ha->host_no, 33 __func__, value)); 34 break; 35 } 36 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, 37 ha->mac_index)); 38} 39 40/** 41 * qla4xxx_free_ddb - deallocate ddb 42 * @ha: pointer to host adapter structure. 43 * @ddb_entry: pointer to device database entry 44 * 45 * This routine marks a DDB entry INVALID 46 **/ 47void qla4xxx_free_ddb(struct scsi_qla_host *ha, 48 struct ddb_entry *ddb_entry) 49{ 50 /* Remove device pointer from index mapping arrays */ 51 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = 52 (struct ddb_entry *) INVALID_ENTRY; 53 ha->tot_ddbs--; 54} 55 56/** 57 * qla4xxx_init_response_q_entries() - Initializes response queue entries. 58 * @ha: HA context 59 * 60 * Beginning of request ring has initialization control block already built 61 * by nvram config routine. 62 **/ 63static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha) 64{ 65 uint16_t cnt; 66 struct response *pkt; 67 68 pkt = (struct response *)ha->response_ptr; 69 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) { 70 pkt->signature = RESPONSE_PROCESSED; 71 pkt++; 72 } 73} 74 75/** 76 * qla4xxx_init_rings - initialize hw queues 77 * @ha: pointer to host adapter structure. 78 * 79 * This routine initializes the internal queues for the specified adapter. 80 * The QLA4010 requires us to restart the queues at index 0. 81 * The QLA4000 doesn't care, so just default to QLA4010's requirement. 82 **/ 83int qla4xxx_init_rings(struct scsi_qla_host *ha) 84{ 85 unsigned long flags = 0; 86 int i; 87 88 /* Initialize request queue. */ 89 spin_lock_irqsave(&ha->hardware_lock, flags); 90 ha->request_out = 0; 91 ha->request_in = 0; 92 ha->request_ptr = &ha->request_ring[ha->request_in]; 93 ha->req_q_count = REQUEST_QUEUE_DEPTH; 94 95 /* Initialize response queue. */ 96 ha->response_in = 0; 97 ha->response_out = 0; 98 ha->response_ptr = &ha->response_ring[ha->response_out]; 99 100 if (is_qla8022(ha)) { 101 writel(0, 102 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out); 103 writel(0, 104 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in); 105 writel(0, 106 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out); 107 } else if (is_qla8032(ha) || is_qla8042(ha)) { 108 writel(0, 109 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in); 110 writel(0, 111 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in); 112 writel(0, 113 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out); 114 } else { 115 /* 116 * Initialize DMA Shadow registers. The firmware is really 117 * supposed to take care of this, but on some uniprocessor 118 * systems, the shadow registers aren't cleared-- causing 119 * the interrupt_handler to think there are responses to be 120 * processed when there aren't. 121 */ 122 ha->shadow_regs->req_q_out = cpu_to_le32(0); 123 ha->shadow_regs->rsp_q_in = cpu_to_le32(0); 124 wmb(); 125 126 writel(0, &ha->reg->req_q_in); 127 writel(0, &ha->reg->rsp_q_out); 128 readl(&ha->reg->rsp_q_out); 129 } 130 131 qla4xxx_init_response_q_entries(ha); 132 133 /* Initialize mailbox active array */ 134 for (i = 0; i < MAX_MRB; i++) 135 ha->active_mrb_array[i] = NULL; 136 137 spin_unlock_irqrestore(&ha->hardware_lock, flags); 138 139 return QLA_SUCCESS; 140} 141 142/** 143 * qla4xxx_get_sys_info - validate adapter MAC address(es) 144 * @ha: pointer to host adapter structure. 145 * 146 **/ 147int qla4xxx_get_sys_info(struct scsi_qla_host *ha) 148{ 149 struct flash_sys_info *sys_info; 150 dma_addr_t sys_info_dma; 151 int status = QLA_ERROR; 152 153 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), 154 &sys_info_dma, GFP_KERNEL); 155 if (sys_info == NULL) { 156 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", 157 ha->host_no, __func__)); 158 159 goto exit_get_sys_info_no_free; 160 } 161 162 /* Get flash sys info */ 163 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, 164 sizeof(*sys_info)) != QLA_SUCCESS) { 165 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " 166 "failed\n", ha->host_no, __func__)); 167 168 goto exit_get_sys_info; 169 } 170 171 /* Save M.A.C. address & serial_number */ 172 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], 173 min(sizeof(ha->my_mac), 174 sizeof(sys_info->physAddr[0].address))); 175 memcpy(ha->serial_number, &sys_info->acSerialNumber, 176 min(sizeof(ha->serial_number), 177 sizeof(sys_info->acSerialNumber))); 178 179 status = QLA_SUCCESS; 180 181exit_get_sys_info: 182 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, 183 sys_info_dma); 184 185exit_get_sys_info_no_free: 186 return status; 187} 188 189/** 190 * qla4xxx_init_local_data - initialize adapter specific local data 191 * @ha: pointer to host adapter structure. 192 * 193 **/ 194static void qla4xxx_init_local_data(struct scsi_qla_host *ha) 195{ 196 /* Initialize aen queue */ 197 ha->aen_q_count = MAX_AEN_ENTRIES; 198} 199 200static uint8_t 201qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha) 202{ 203 uint8_t ipv4_wait = 0; 204 uint8_t ipv6_wait = 0; 205 int8_t ip_address[IPv6_ADDR_LEN] = {0} ; 206 207 /* If both IPv4 & IPv6 are enabled, possibly only one 208 * IP address may be acquired, so check to see if we 209 * need to wait for another */ 210 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) { 211 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) && 212 ((ha->addl_fw_state & 213 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) { 214 ipv4_wait = 1; 215 } 216 if (((ha->ip_config.ipv6_addl_options & 217 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) && 218 ((ha->ip_config.ipv6_link_local_state == 219 IP_ADDRSTATE_ACQUIRING) || 220 (ha->ip_config.ipv6_addr0_state == 221 IP_ADDRSTATE_ACQUIRING) || 222 (ha->ip_config.ipv6_addr1_state == 223 IP_ADDRSTATE_ACQUIRING))) { 224 225 ipv6_wait = 1; 226 227 if ((ha->ip_config.ipv6_link_local_state == 228 IP_ADDRSTATE_PREFERRED) || 229 (ha->ip_config.ipv6_addr0_state == 230 IP_ADDRSTATE_PREFERRED) || 231 (ha->ip_config.ipv6_addr1_state == 232 IP_ADDRSTATE_PREFERRED)) { 233 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 234 "Preferred IP configured." 235 " Don't wait!\n", ha->host_no, 236 __func__)); 237 ipv6_wait = 0; 238 } 239 if (memcmp(&ha->ip_config.ipv6_default_router_addr, 240 ip_address, IPv6_ADDR_LEN) == 0) { 241 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 242 "No Router configured. " 243 "Don't wait!\n", ha->host_no, 244 __func__)); 245 ipv6_wait = 0; 246 } 247 if ((ha->ip_config.ipv6_default_router_state == 248 IPV6_RTRSTATE_MANUAL) && 249 (ha->ip_config.ipv6_link_local_state == 250 IP_ADDRSTATE_TENTATIVE) && 251 (memcmp(&ha->ip_config.ipv6_link_local_addr, 252 &ha->ip_config.ipv6_default_router_addr, 4) == 253 0)) { 254 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & " 255 "IP configured. Don't wait!\n", 256 ha->host_no, __func__)); 257 ipv6_wait = 0; 258 } 259 } 260 if (ipv4_wait || ipv6_wait) { 261 DEBUG2(printk("scsi%ld: %s: Wait for additional " 262 "IP(s) \"", ha->host_no, __func__)); 263 if (ipv4_wait) 264 DEBUG2(printk("IPv4 ")); 265 if (ha->ip_config.ipv6_link_local_state == 266 IP_ADDRSTATE_ACQUIRING) 267 DEBUG2(printk("IPv6LinkLocal ")); 268 if (ha->ip_config.ipv6_addr0_state == 269 IP_ADDRSTATE_ACQUIRING) 270 DEBUG2(printk("IPv6Addr0 ")); 271 if (ha->ip_config.ipv6_addr1_state == 272 IP_ADDRSTATE_ACQUIRING) 273 DEBUG2(printk("IPv6Addr1 ")); 274 DEBUG2(printk("\"\n")); 275 } 276 } 277 278 return ipv4_wait|ipv6_wait; 279} 280 281static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha, 282 struct qla4_8xxx_minidump_template_hdr *md_hdr) 283{ 284 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET : 285 QLA83XX_TEMPLATE_CAP_OFFSET; 286 int rval = 1; 287 uint32_t *cap_offset; 288 289 cap_offset = (uint32_t *)((char *)md_hdr + offset); 290 291 if (!(le32_to_cpu(*cap_offset) & BIT_0)) { 292 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n", 293 *cap_offset); 294 rval = 0; 295 } 296 297 return rval; 298} 299 300/** 301 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data. 302 * @ha: pointer to host adapter structure. 303 **/ 304void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha) 305{ 306 int status; 307 uint32_t capture_debug_level; 308 int hdr_entry_bit, k; 309 void *md_tmp; 310 dma_addr_t md_tmp_dma; 311 struct qla4_8xxx_minidump_template_hdr *md_hdr; 312 int dma_capable; 313 314 if (ha->fw_dump) { 315 ql4_printk(KERN_WARNING, ha, 316 "Firmware dump previously allocated.\n"); 317 return; 318 } 319 320 status = qla4xxx_req_template_size(ha); 321 if (status != QLA_SUCCESS) { 322 ql4_printk(KERN_INFO, ha, 323 "scsi%ld: Failed to get template size\n", 324 ha->host_no); 325 return; 326 } 327 328 clear_bit(AF_82XX_FW_DUMPED, &ha->flags); 329 330 /* Allocate memory for saving the template */ 331 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 332 &md_tmp_dma, GFP_KERNEL); 333 if (!md_tmp) { 334 ql4_printk(KERN_INFO, ha, 335 "scsi%ld: Failed to allocate DMA memory\n", 336 ha->host_no); 337 return; 338 } 339 340 /* Request template */ 341 status = qla4xxx_get_minidump_template(ha, md_tmp_dma); 342 if (status != QLA_SUCCESS) { 343 ql4_printk(KERN_INFO, ha, 344 "scsi%ld: Failed to get minidump template\n", 345 ha->host_no); 346 goto alloc_cleanup; 347 } 348 349 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp; 350 351 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr); 352 353 capture_debug_level = md_hdr->capture_debug_level; 354 355 /* Get capture mask based on module loadtime setting. */ 356 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) || 357 (ql4xmdcapmask == 0xFF && dma_capable)) { 358 ha->fw_dump_capture_mask = ql4xmdcapmask; 359 } else { 360 if (ql4xmdcapmask == 0xFF) 361 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n"); 362 ha->fw_dump_capture_mask = capture_debug_level; 363 } 364 365 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask; 366 367 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n", 368 md_hdr->num_of_entries)); 369 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n", 370 ha->fw_dump_tmplt_size)); 371 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n", 372 ha->fw_dump_capture_mask)); 373 374 /* Calculate fw_dump_size */ 375 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF); 376 hdr_entry_bit <<= 1, k++) { 377 if (hdr_entry_bit & ha->fw_dump_capture_mask) 378 ha->fw_dump_size += md_hdr->capture_size_array[k]; 379 } 380 381 /* Total firmware dump size including command header */ 382 ha->fw_dump_size += ha->fw_dump_tmplt_size; 383 ha->fw_dump = vmalloc(ha->fw_dump_size); 384 if (!ha->fw_dump) 385 goto alloc_cleanup; 386 387 DEBUG2(ql4_printk(KERN_INFO, ha, 388 "Minidump Template Size = 0x%x KB\n", 389 ha->fw_dump_tmplt_size)); 390 DEBUG2(ql4_printk(KERN_INFO, ha, 391 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size)); 392 393 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size); 394 ha->fw_dump_tmplt_hdr = ha->fw_dump; 395 396alloc_cleanup: 397 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, 398 md_tmp, md_tmp_dma); 399} 400 401static int qla4xxx_fw_ready(struct scsi_qla_host *ha) 402{ 403 uint32_t timeout_count; 404 int ready = 0; 405 406 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); 407 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; 408 timeout_count--) { 409 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 410 qla4xxx_get_dhcp_ip_address(ha); 411 412 /* Get firmware state. */ 413 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { 414 DEBUG2(printk("scsi%ld: %s: unable to get firmware " 415 "state\n", ha->host_no, __func__)); 416 break; 417 } 418 419 if (ha->firmware_state & FW_STATE_ERROR) { 420 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" 421 " occurred\n", ha->host_no, __func__)); 422 break; 423 424 } 425 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { 426 /* 427 * The firmware has not yet been issued an Initialize 428 * Firmware command, so issue it now. 429 */ 430 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) 431 break; 432 433 /* Go back and test for ready state - no wait. */ 434 continue; 435 } 436 437 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 438 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 439 "AUTOCONNECT in progress\n", 440 ha->host_no, __func__)); 441 } 442 443 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 444 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 445 " CONFIGURING IP\n", 446 ha->host_no, __func__)); 447 /* 448 * Check for link state after 15 secs and if link is 449 * still DOWN then, cable is unplugged. Ignore "DHCP 450 * in Progress/CONFIGURING IP" bit to check if firmware 451 * is in ready state or not after 15 secs. 452 * This is applicable for both 2.x & 3.x firmware 453 */ 454 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) { 455 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) { 456 DEBUG2(printk(KERN_INFO "scsi%ld: %s:" 457 " LINK UP (Cable plugged)\n", 458 ha->host_no, __func__)); 459 } else if (ha->firmware_state & 460 (FW_STATE_CONFIGURING_IP | 461 FW_STATE_READY)) { 462 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 463 "LINK DOWN (Cable unplugged)\n", 464 ha->host_no, __func__)); 465 ha->firmware_state = FW_STATE_READY; 466 } 467 } 468 } 469 470 if (ha->firmware_state == FW_STATE_READY) { 471 /* If DHCP IP Addr is available, retrieve it now. */ 472 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, 473 &ha->dpc_flags)) 474 qla4xxx_get_dhcp_ip_address(ha); 475 476 if (!qla4xxx_wait_for_ip_config(ha) || 477 timeout_count == 1) { 478 DEBUG2(ql4_printk(KERN_INFO, ha, 479 "Firmware Ready..\n")); 480 /* The firmware is ready to process SCSI 481 commands. */ 482 DEBUG2(ql4_printk(KERN_INFO, ha, 483 "scsi%ld: %s: MEDIA TYPE" 484 " - %s\n", ha->host_no, 485 __func__, (ha->addl_fw_state & 486 FW_ADDSTATE_OPTICAL_MEDIA) 487 != 0 ? "OPTICAL" : "COPPER")); 488 DEBUG2(ql4_printk(KERN_INFO, ha, 489 "scsi%ld: %s: DHCPv4 STATE" 490 " Enabled %s\n", ha->host_no, 491 __func__, (ha->addl_fw_state & 492 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ? 493 "YES" : "NO")); 494 DEBUG2(ql4_printk(KERN_INFO, ha, 495 "scsi%ld: %s: LINK %s\n", 496 ha->host_no, __func__, 497 (ha->addl_fw_state & 498 FW_ADDSTATE_LINK_UP) != 0 ? 499 "UP" : "DOWN")); 500 DEBUG2(ql4_printk(KERN_INFO, ha, 501 "scsi%ld: %s: iSNS Service " 502 "Started %s\n", 503 ha->host_no, __func__, 504 (ha->addl_fw_state & 505 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? 506 "YES" : "NO")); 507 508 ready = 1; 509 break; 510 } 511 } 512 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " 513 "seconds expired= %d\n", ha->host_no, __func__, 514 ha->firmware_state, ha->addl_fw_state, 515 timeout_count)); 516 if (is_qla4032(ha) && 517 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && 518 (timeout_count < ADAPTER_INIT_TOV - 5)) { 519 break; 520 } 521 522 msleep(1000); 523 } /* end of for */ 524 525 if (timeout_count <= 0) 526 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", 527 ha->host_no, __func__)); 528 529 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 530 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting " 531 "it's waiting to configure an IP address\n", 532 ha->host_no, __func__)); 533 ready = 1; 534 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 535 DEBUG2(printk("scsi%ld: %s: FW initialized, but " 536 "auto-discovery still in process\n", 537 ha->host_no, __func__)); 538 ready = 1; 539 } 540 541 return ready; 542} 543 544/** 545 * qla4xxx_init_firmware - initializes the firmware. 546 * @ha: pointer to host adapter structure. 547 * 548 **/ 549static int qla4xxx_init_firmware(struct scsi_qla_host *ha) 550{ 551 int status = QLA_ERROR; 552 553 if (is_aer_supported(ha) && 554 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 555 return status; 556 557 /* For 82xx, stop firmware before initializing because if BIOS 558 * has previously initialized firmware, then driver's initialize 559 * firmware will fail. */ 560 if (is_qla80XX(ha)) 561 qla4_8xxx_stop_firmware(ha); 562 563 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); 564 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { 565 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " 566 "control block\n", ha->host_no, __func__)); 567 return status; 568 } 569 570 if (!qla4xxx_fw_ready(ha)) 571 return status; 572 573 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags)) 574 qla4xxx_alloc_fw_dump(ha); 575 576 return qla4xxx_get_firmware_status(ha); 577} 578 579static void qla4xxx_set_model_info(struct scsi_qla_host *ha) 580{ 581 uint16_t board_id_string[8]; 582 int i; 583 int size = sizeof(ha->nvram->isp4022.boardIdStr); 584 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2; 585 586 for (i = 0; i < (size / 2) ; i++) { 587 board_id_string[i] = rd_nvram_word(ha, offset); 588 offset += 1; 589 } 590 591 memcpy(ha->model_name, board_id_string, size); 592} 593 594static int qla4xxx_config_nvram(struct scsi_qla_host *ha) 595{ 596 unsigned long flags; 597 union external_hw_config_reg extHwConfig; 598 599 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, 600 __func__)); 601 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) 602 return QLA_ERROR; 603 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { 604 ql4xxx_unlock_flash(ha); 605 return QLA_ERROR; 606 } 607 608 /* Get EEPRom Parameters from NVRAM and validate */ 609 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); 610 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { 611 spin_lock_irqsave(&ha->hardware_lock, flags); 612 extHwConfig.Asuint32_t = 613 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); 614 spin_unlock_irqrestore(&ha->hardware_lock, flags); 615 } else { 616 ql4_printk(KERN_WARNING, ha, 617 "scsi%ld: %s: EEProm checksum invalid. " 618 "Please update your EEPROM\n", ha->host_no, 619 __func__); 620 621 /* Attempt to set defaults */ 622 if (is_qla4010(ha)) 623 extHwConfig.Asuint32_t = 0x1912; 624 else if (is_qla4022(ha) | is_qla4032(ha)) 625 extHwConfig.Asuint32_t = 0x0023; 626 else 627 return QLA_ERROR; 628 } 629 630 if (is_qla4022(ha) || is_qla4032(ha)) 631 qla4xxx_set_model_info(ha); 632 else 633 strcpy(ha->model_name, "QLA4010"); 634 635 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", 636 ha->host_no, __func__, extHwConfig.Asuint32_t)); 637 638 spin_lock_irqsave(&ha->hardware_lock, flags); 639 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); 640 readl(isp_ext_hw_conf(ha)); 641 spin_unlock_irqrestore(&ha->hardware_lock, flags); 642 643 ql4xxx_unlock_nvram(ha); 644 ql4xxx_unlock_flash(ha); 645 646 return QLA_SUCCESS; 647} 648 649/** 650 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. 651 * @ha: HA context 652 */ 653void qla4_8xxx_pci_config(struct scsi_qla_host *ha) 654{ 655 pci_set_master(ha->pdev); 656} 657 658void qla4xxx_pci_config(struct scsi_qla_host *ha) 659{ 660 uint16_t w; 661 int status; 662 663 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 664 665 pci_set_master(ha->pdev); 666 status = pci_set_mwi(ha->pdev); 667 if (status) 668 ql4_printk(KERN_WARNING, ha, "Failed to set MWI\n"); 669 670 /* 671 * We want to respect framework's setting of PCI configuration space 672 * command register and also want to make sure that all bits of 673 * interest to us are properly set in command register. 674 */ 675 pci_read_config_word(ha->pdev, PCI_COMMAND, &w); 676 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; 677 w &= ~PCI_COMMAND_INTX_DISABLE; 678 pci_write_config_word(ha->pdev, PCI_COMMAND, w); 679} 680 681static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) 682{ 683 int status = QLA_ERROR; 684 unsigned long max_wait_time; 685 unsigned long flags; 686 uint32_t mbox_status; 687 688 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n"); 689 690 /* 691 * Start firmware from flash ROM 692 * 693 * WORKAROUND: Stuff a non-constant value that the firmware can 694 * use as a seed for a random number generator in MB7 prior to 695 * setting BOOT_ENABLE. Fixes problem where the TCP 696 * connections use the same TCP ports after each reboot, 697 * causing some connections to not get re-established. 698 */ 699 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", 700 ha->host_no, __func__)); 701 702 spin_lock_irqsave(&ha->hardware_lock, flags); 703 writel(jiffies, &ha->reg->mailbox[7]); 704 if (is_qla4022(ha) | is_qla4032(ha)) 705 writel(set_rmask(NVR_WRITE_ENABLE), 706 &ha->reg->u1.isp4022.nvram); 707 708 writel(2, &ha->reg->mailbox[6]); 709 readl(&ha->reg->mailbox[6]); 710 711 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); 712 readl(&ha->reg->ctrl_status); 713 spin_unlock_irqrestore(&ha->hardware_lock, flags); 714 715 /* Wait for firmware to come UP. */ 716 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for " 717 "boot firmware to complete...\n", 718 ha->host_no, __func__, FIRMWARE_UP_TOV)); 719 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ); 720 do { 721 uint32_t ctrl_status; 722 723 spin_lock_irqsave(&ha->hardware_lock, flags); 724 ctrl_status = readw(&ha->reg->ctrl_status); 725 mbox_status = readw(&ha->reg->mailbox[0]); 726 spin_unlock_irqrestore(&ha->hardware_lock, flags); 727 728 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) 729 break; 730 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) 731 break; 732 733 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot " 734 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n", 735 ha->host_no, __func__, ctrl_status, max_wait_time)); 736 737 msleep_interruptible(250); 738 } while (!time_after_eq(jiffies, max_wait_time)); 739 740 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { 741 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n", 742 ha->host_no, __func__)); 743 744 spin_lock_irqsave(&ha->hardware_lock, flags); 745 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 746 &ha->reg->ctrl_status); 747 readl(&ha->reg->ctrl_status); 748 spin_unlock_irqrestore(&ha->hardware_lock, flags); 749 750 status = QLA_SUCCESS; 751 } else { 752 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " 753 "- mbox status 0x%x\n", ha->host_no, __func__, 754 mbox_status); 755 status = QLA_ERROR; 756 } 757 return status; 758} 759 760int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) 761{ 762#define QL4_LOCK_DRVR_WAIT 60 763#define QL4_LOCK_DRVR_SLEEP 1 764 765 int drvr_wait = QL4_LOCK_DRVR_WAIT; 766 while (drvr_wait) { 767 if (ql4xxx_lock_drvr(a) == 0) { 768 ssleep(QL4_LOCK_DRVR_SLEEP); 769 DEBUG2(printk("scsi%ld: %s: Waiting for " 770 "Global Init Semaphore(%d)...\n", 771 a->host_no, 772 __func__, drvr_wait)); 773 drvr_wait -= QL4_LOCK_DRVR_SLEEP; 774 } else { 775 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " 776 "acquired\n", a->host_no, __func__)); 777 return QLA_SUCCESS; 778 } 779 } 780 return QLA_ERROR; 781} 782 783/** 784 * qla4xxx_start_firmware - starts qla4xxx firmware 785 * @ha: Pointer to host adapter structure. 786 * 787 * This routine performs the necessary steps to start the firmware for 788 * the QLA4010 adapter. 789 **/ 790int qla4xxx_start_firmware(struct scsi_qla_host *ha) 791{ 792 unsigned long flags = 0; 793 uint32_t mbox_status; 794 int status = QLA_ERROR; 795 int soft_reset = 1; 796 int config_chip = 0; 797 798 if (is_qla4022(ha) | is_qla4032(ha)) 799 ql4xxx_set_mac_number(ha); 800 801 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 802 return QLA_ERROR; 803 804 spin_lock_irqsave(&ha->hardware_lock, flags); 805 806 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, 807 __func__, readw(isp_port_ctrl(ha)))); 808 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, 809 __func__, readw(isp_port_status(ha)))); 810 811 /* Is Hardware already initialized? */ 812 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { 813 DEBUG(printk("scsi%ld: %s: Hardware has already been " 814 "initialized\n", ha->host_no, __func__)); 815 816 /* Receive firmware boot acknowledgement */ 817 mbox_status = readw(&ha->reg->mailbox[0]); 818 819 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " 820 "0x%x\n", ha->host_no, __func__, mbox_status)); 821 822 /* Is firmware already booted? */ 823 if (mbox_status == 0) { 824 /* F/W not running, must be config by net driver */ 825 config_chip = 1; 826 soft_reset = 0; 827 } else { 828 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 829 &ha->reg->ctrl_status); 830 readl(&ha->reg->ctrl_status); 831 writel(set_rmask(CSR_SCSI_COMPLETION_INTR), 832 &ha->reg->ctrl_status); 833 readl(&ha->reg->ctrl_status); 834 spin_unlock_irqrestore(&ha->hardware_lock, flags); 835 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { 836 DEBUG2(printk("scsi%ld: %s: Get firmware " 837 "state -- state = 0x%x\n", 838 ha->host_no, 839 __func__, ha->firmware_state)); 840 /* F/W is running */ 841 if (ha->firmware_state & 842 FW_STATE_CONFIG_WAIT) { 843 DEBUG2(printk("scsi%ld: %s: Firmware " 844 "in known state -- " 845 "config and " 846 "boot, state = 0x%x\n", 847 ha->host_no, __func__, 848 ha->firmware_state)); 849 config_chip = 1; 850 soft_reset = 0; 851 } 852 } else { 853 DEBUG2(printk("scsi%ld: %s: Firmware in " 854 "unknown state -- resetting," 855 " state = " 856 "0x%x\n", ha->host_no, __func__, 857 ha->firmware_state)); 858 } 859 spin_lock_irqsave(&ha->hardware_lock, flags); 860 } 861 } else { 862 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " 863 "started - resetting\n", ha->host_no, __func__)); 864 } 865 spin_unlock_irqrestore(&ha->hardware_lock, flags); 866 867 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", 868 ha->host_no, __func__, soft_reset, config_chip)); 869 if (soft_reset) { 870 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, 871 __func__)); 872 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr 873 * lock again, but ok */ 874 if (status == QLA_ERROR) { 875 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", 876 ha->host_no, __func__)); 877 ql4xxx_unlock_drvr(ha); 878 return QLA_ERROR; 879 } 880 config_chip = 1; 881 882 /* Reset clears the semaphore, so acquire again */ 883 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 884 return QLA_ERROR; 885 } 886 887 if (config_chip) { 888 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) 889 status = qla4xxx_start_firmware_from_flash(ha); 890 } 891 892 ql4xxx_unlock_drvr(ha); 893 if (status == QLA_SUCCESS) { 894 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) 895 qla4xxx_get_crash_record(ha); 896 897 qla4xxx_init_rings(ha); 898 } else { 899 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", 900 ha->host_no, __func__)); 901 } 902 return status; 903} 904/** 905 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware 906 * @ha: pointer to adapter structure 907 * 908 * Since firmware is not running in autoconnect mode the DDB indices should 909 * be freed so that when login happens from user space there are free DDB 910 * indices available. 911 **/ 912void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) 913{ 914 int max_ddbs; 915 int ret; 916 uint32_t idx = 0, next_idx = 0; 917 uint32_t state = 0, conn_err = 0; 918 919 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 920 MAX_DEV_DB_ENTRIES; 921 922 for (idx = 0; idx < max_ddbs; idx = next_idx) { 923 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 924 &next_idx, &state, &conn_err, 925 NULL, NULL); 926 if (ret == QLA_ERROR) { 927 next_idx++; 928 continue; 929 } 930 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 931 state == DDB_DS_SESSION_FAILED) { 932 DEBUG2(ql4_printk(KERN_INFO, ha, 933 "Freeing DDB index = 0x%x\n", idx)); 934 ret = qla4xxx_clear_ddb_entry(ha, idx); 935 if (ret == QLA_ERROR) 936 ql4_printk(KERN_ERR, ha, 937 "Unable to clear DDB index = " 938 "0x%x\n", idx); 939 } 940 if (next_idx == 0) 941 break; 942 } 943} 944 945/** 946 * qla4xxx_initialize_adapter - initiailizes hba 947 * @ha: Pointer to host adapter structure. 948 * @is_reset: Is this init path or reset path 949 * 950 * This routine parforms all of the steps necessary to initialize the adapter. 951 * 952 **/ 953int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset) 954{ 955 int status = QLA_ERROR; 956 957 ha->eeprom_cmd_data = 0; 958 959 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 960 ha->isp_ops->pci_config(ha); 961 962 ha->isp_ops->disable_intrs(ha); 963 964 /* Initialize the Host adapter request/response queues and firmware */ 965 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) 966 goto exit_init_hba; 967 968 /* 969 * For ISP83XX, mailbox and IOCB interrupts are enabled separately. 970 * Mailbox interrupts must be enabled prior to issuing any mailbox 971 * command in order to prevent the possibility of losing interrupts 972 * while switching from polling to interrupt mode. IOCB interrupts are 973 * enabled via isp_ops->enable_intrs. 974 */ 975 if (is_qla8032(ha) || is_qla8042(ha)) 976 qla4_83xx_enable_mbox_intrs(ha); 977 978 if (qla4xxx_about_firmware(ha) == QLA_ERROR) 979 goto exit_init_hba; 980 981 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR) 982 goto exit_init_hba; 983 984 qla4xxx_init_local_data(ha); 985 986 status = qla4xxx_init_firmware(ha); 987 if (status == QLA_ERROR) 988 goto exit_init_hba; 989 990 if (is_reset == RESET_ADAPTER) 991 qla4xxx_build_ddb_list(ha, is_reset); 992 993 set_bit(AF_ONLINE, &ha->flags); 994 995exit_init_hba: 996 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, 997 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 998 return status; 999} 1000 1001int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1002 struct ddb_entry *ddb_entry, uint32_t state) 1003{ 1004 uint32_t old_fw_ddb_device_state; 1005 int status = QLA_ERROR; 1006 1007 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1008 DEBUG2(ql4_printk(KERN_INFO, ha, 1009 "%s: DDB - old state = 0x%x, new state = 0x%x for " 1010 "index [%d]\n", __func__, 1011 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1012 1013 ddb_entry->fw_ddb_device_state = state; 1014 1015 switch (old_fw_ddb_device_state) { 1016 case DDB_DS_LOGIN_IN_PROCESS: 1017 switch (state) { 1018 case DDB_DS_SESSION_ACTIVE: 1019 case DDB_DS_DISCOVERY: 1020 qla4xxx_update_session_conn_param(ha, ddb_entry); 1021 ddb_entry->unblock_sess(ddb_entry->sess); 1022 status = QLA_SUCCESS; 1023 break; 1024 case DDB_DS_SESSION_FAILED: 1025 case DDB_DS_NO_CONNECTION_ACTIVE: 1026 iscsi_conn_login_event(ddb_entry->conn, 1027 ISCSI_CONN_STATE_FREE); 1028 status = QLA_SUCCESS; 1029 break; 1030 } 1031 break; 1032 case DDB_DS_SESSION_ACTIVE: 1033 case DDB_DS_DISCOVERY: 1034 switch (state) { 1035 case DDB_DS_SESSION_FAILED: 1036 /* 1037 * iscsi_session failure will cause userspace to 1038 * stop the connection which in turn would block the 1039 * iscsi_session and start relogin 1040 */ 1041 iscsi_session_failure(ddb_entry->sess->dd_data, 1042 ISCSI_ERR_CONN_FAILED); 1043 status = QLA_SUCCESS; 1044 break; 1045 case DDB_DS_NO_CONNECTION_ACTIVE: 1046 clear_bit(fw_ddb_index, ha->ddb_idx_map); 1047 status = QLA_SUCCESS; 1048 break; 1049 } 1050 break; 1051 case DDB_DS_SESSION_FAILED: 1052 switch (state) { 1053 case DDB_DS_SESSION_ACTIVE: 1054 case DDB_DS_DISCOVERY: 1055 ddb_entry->unblock_sess(ddb_entry->sess); 1056 qla4xxx_update_session_conn_param(ha, ddb_entry); 1057 status = QLA_SUCCESS; 1058 break; 1059 case DDB_DS_SESSION_FAILED: 1060 iscsi_session_failure(ddb_entry->sess->dd_data, 1061 ISCSI_ERR_CONN_FAILED); 1062 status = QLA_SUCCESS; 1063 break; 1064 } 1065 break; 1066 default: 1067 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", 1068 __func__)); 1069 break; 1070 } 1071 return status; 1072} 1073 1074void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry) 1075{ 1076 /* 1077 * This triggers a relogin. After the relogin_timer 1078 * expires, the relogin gets scheduled. We must wait a 1079 * minimum amount of time since receiving an 0x8014 AEN 1080 * with failed device_state or a logout response before 1081 * we can issue another relogin. 1082 * 1083 * Firmware pads this timeout: (time2wait +1). 1084 * Driver retry to login should be longer than F/W. 1085 * Otherwise F/W will fail 1086 * set_ddb() mbx cmd with 0x4005 since it still 1087 * counting down its time2wait. 1088 */ 1089 atomic_set(&ddb_entry->relogin_timer, 0); 1090 atomic_set(&ddb_entry->retry_relogin_timer, 1091 ddb_entry->default_time2wait + 4); 1092 1093} 1094 1095int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1096 struct ddb_entry *ddb_entry, uint32_t state) 1097{ 1098 uint32_t old_fw_ddb_device_state; 1099 int status = QLA_ERROR; 1100 1101 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1102 DEBUG2(ql4_printk(KERN_INFO, ha, 1103 "%s: DDB - old state = 0x%x, new state = 0x%x for " 1104 "index [%d]\n", __func__, 1105 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1106 1107 ddb_entry->fw_ddb_device_state = state; 1108 1109 switch (old_fw_ddb_device_state) { 1110 case DDB_DS_LOGIN_IN_PROCESS: 1111 case DDB_DS_NO_CONNECTION_ACTIVE: 1112 switch (state) { 1113 case DDB_DS_SESSION_ACTIVE: 1114 ddb_entry->unblock_sess(ddb_entry->sess); 1115 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); 1116 status = QLA_SUCCESS; 1117 break; 1118 case DDB_DS_SESSION_FAILED: 1119 iscsi_block_session(ddb_entry->sess); 1120 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1121 qla4xxx_arm_relogin_timer(ddb_entry); 1122 status = QLA_SUCCESS; 1123 break; 1124 } 1125 break; 1126 case DDB_DS_SESSION_ACTIVE: 1127 switch (state) { 1128 case DDB_DS_SESSION_FAILED: 1129 iscsi_block_session(ddb_entry->sess); 1130 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1131 qla4xxx_arm_relogin_timer(ddb_entry); 1132 status = QLA_SUCCESS; 1133 break; 1134 } 1135 break; 1136 case DDB_DS_SESSION_FAILED: 1137 switch (state) { 1138 case DDB_DS_SESSION_ACTIVE: 1139 ddb_entry->unblock_sess(ddb_entry->sess); 1140 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); 1141 status = QLA_SUCCESS; 1142 break; 1143 case DDB_DS_SESSION_FAILED: 1144 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 1145 qla4xxx_arm_relogin_timer(ddb_entry); 1146 status = QLA_SUCCESS; 1147 break; 1148 } 1149 break; 1150 default: 1151 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", 1152 __func__)); 1153 break; 1154 } 1155 return status; 1156} 1157 1158/** 1159 * qla4xxx_process_ddb_changed - process ddb state change 1160 * @ha: Pointer to host adapter structure. 1161 * @fw_ddb_index: Firmware's device database index 1162 * @state: Device state 1163 * @conn_err: Unused 1164 * 1165 * This routine processes a Decive Database Changed AEN Event. 1166 **/ 1167int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, 1168 uint32_t fw_ddb_index, 1169 uint32_t state, uint32_t conn_err) 1170{ 1171 struct ddb_entry *ddb_entry; 1172 1173 /* check for out of range index */ 1174 if (fw_ddb_index >= MAX_DDB_ENTRIES) 1175 goto exit_ddb_event; 1176 1177 /* Get the corresponging ddb entry */ 1178 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); 1179 /* Device does not currently exist in our database. */ 1180 if (ddb_entry == NULL) { 1181 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", 1182 __func__, fw_ddb_index); 1183 1184 if (state == DDB_DS_NO_CONNECTION_ACTIVE) 1185 clear_bit(fw_ddb_index, ha->ddb_idx_map); 1186 1187 goto exit_ddb_event; 1188 } 1189 1190 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state); 1191 1192exit_ddb_event: 1193 return QLA_ERROR; 1194} 1195 1196/** 1197 * qla4xxx_login_flash_ddb - Login to target (DDB) 1198 * @cls_session: Pointer to the session to login 1199 * 1200 * This routine logins to the target. 1201 * Issues setddb and conn open mbx 1202 **/ 1203void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session) 1204{ 1205 struct iscsi_session *sess; 1206 struct ddb_entry *ddb_entry; 1207 struct scsi_qla_host *ha; 1208 struct dev_db_entry *fw_ddb_entry = NULL; 1209 dma_addr_t fw_ddb_dma; 1210 uint32_t mbx_sts = 0; 1211 int ret; 1212 1213 sess = cls_session->dd_data; 1214 ddb_entry = sess->dd_data; 1215 ha = ddb_entry->ha; 1216 1217 if (!test_bit(AF_LINK_UP, &ha->flags)) 1218 return; 1219 1220 if (ddb_entry->ddb_type != FLASH_DDB) { 1221 DEBUG2(ql4_printk(KERN_INFO, ha, 1222 "Skipping login to non FLASH DB")); 1223 goto exit_login; 1224 } 1225 1226 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 1227 &fw_ddb_dma); 1228 if (fw_ddb_entry == NULL) { 1229 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 1230 goto exit_login; 1231 } 1232 1233 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) { 1234 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index); 1235 if (ret == QLA_ERROR) 1236 goto exit_login; 1237 1238 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1239 ha->tot_ddbs++; 1240 } 1241 1242 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry, 1243 sizeof(struct dev_db_entry)); 1244 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index; 1245 1246 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 1247 fw_ddb_dma, &mbx_sts); 1248 if (ret == QLA_ERROR) { 1249 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n")); 1250 goto exit_login; 1251 } 1252 1253 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1254 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1255 if (ret == QLA_ERROR) { 1256 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 1257 sess->targetname); 1258 goto exit_login; 1259 } 1260 1261exit_login: 1262 if (fw_ddb_entry) 1263 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 1264} 1265 1266