1/* 2 * QLogic iSCSI HBA Driver 3 * Copyright (c) 2003-2006 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 struct ddb_entry *qla4xxx_alloc_ddb(struct scsi_qla_host *ha, 15 uint32_t fw_ddb_index); 16 17static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) 18{ 19 uint32_t value; 20 uint8_t func_number; 21 unsigned long flags; 22 23 /* Get the function number */ 24 spin_lock_irqsave(&ha->hardware_lock, flags); 25 value = readw(&ha->reg->ctrl_status); 26 spin_unlock_irqrestore(&ha->hardware_lock, flags); 27 28 func_number = (uint8_t) ((value >> 4) & 0x30); 29 switch (value & ISP_CONTROL_FN_MASK) { 30 case ISP_CONTROL_FN0_SCSI: 31 ha->mac_index = 1; 32 break; 33 case ISP_CONTROL_FN1_SCSI: 34 ha->mac_index = 3; 35 break; 36 default: 37 DEBUG2(printk("scsi%ld: %s: Invalid function number, " 38 "ispControlStatus = 0x%x\n", ha->host_no, 39 __func__, value)); 40 break; 41 } 42 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, 43 ha->mac_index)); 44} 45 46/** 47 * qla4xxx_free_ddb - deallocate ddb 48 * @ha: pointer to host adapter structure. 49 * @ddb_entry: pointer to device database entry 50 * 51 * This routine deallocates and unlinks the specified ddb_entry from the 52 * adapter's 53 **/ 54void qla4xxx_free_ddb(struct scsi_qla_host *ha, 55 struct ddb_entry *ddb_entry) 56{ 57 /* Remove device entry from list */ 58 list_del_init(&ddb_entry->list); 59 60 /* Remove device pointer from index mapping arrays */ 61 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = 62 (struct ddb_entry *) INVALID_ENTRY; 63 ha->tot_ddbs--; 64 65 /* Free memory and scsi-ml struct for device entry */ 66 qla4xxx_destroy_sess(ddb_entry); 67} 68 69/** 70 * qla4xxx_free_ddb_list - deallocate all ddbs 71 * @ha: pointer to host adapter structure. 72 * 73 * This routine deallocates and removes all devices on the sppecified adapter. 74 **/ 75void qla4xxx_free_ddb_list(struct scsi_qla_host *ha) 76{ 77 struct list_head *ptr; 78 struct ddb_entry *ddb_entry; 79 80 while (!list_empty(&ha->ddb_list)) { 81 ptr = ha->ddb_list.next; 82 /* Free memory for device entry and remove */ 83 ddb_entry = list_entry(ptr, struct ddb_entry, list); 84 qla4xxx_free_ddb(ha, ddb_entry); 85 } 86} 87 88/** 89 * qla4xxx_init_response_q_entries() - Initializes response queue entries. 90 * @ha: HA context 91 * 92 * Beginning of request ring has initialization control block already built 93 * by nvram config routine. 94 **/ 95static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha) 96{ 97 uint16_t cnt; 98 struct response *pkt; 99 100 pkt = (struct response *)ha->response_ptr; 101 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) { 102 pkt->signature = RESPONSE_PROCESSED; 103 pkt++; 104 } 105} 106 107/** 108 * qla4xxx_init_rings - initialize hw queues 109 * @ha: pointer to host adapter structure. 110 * 111 * This routine initializes the internal queues for the specified adapter. 112 * The QLA4010 requires us to restart the queues at index 0. 113 * The QLA4000 doesn't care, so just default to QLA4010's requirement. 114 **/ 115int qla4xxx_init_rings(struct scsi_qla_host *ha) 116{ 117 unsigned long flags = 0; 118 119 /* Initialize request queue. */ 120 spin_lock_irqsave(&ha->hardware_lock, flags); 121 ha->request_out = 0; 122 ha->request_in = 0; 123 ha->request_ptr = &ha->request_ring[ha->request_in]; 124 ha->req_q_count = REQUEST_QUEUE_DEPTH; 125 126 /* Initialize response queue. */ 127 ha->response_in = 0; 128 ha->response_out = 0; 129 ha->response_ptr = &ha->response_ring[ha->response_out]; 130 131 if (is_qla8022(ha)) { 132 writel(0, 133 (unsigned long __iomem *)&ha->qla4_8xxx_reg->req_q_out); 134 writel(0, 135 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_in); 136 writel(0, 137 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_out); 138 } else { 139 /* 140 * Initialize DMA Shadow registers. The firmware is really 141 * supposed to take care of this, but on some uniprocessor 142 * systems, the shadow registers aren't cleared-- causing 143 * the interrupt_handler to think there are responses to be 144 * processed when there aren't. 145 */ 146 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0); 147 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0); 148 wmb(); 149 150 writel(0, &ha->reg->req_q_in); 151 writel(0, &ha->reg->rsp_q_out); 152 readl(&ha->reg->rsp_q_out); 153 } 154 155 qla4xxx_init_response_q_entries(ha); 156 157 spin_unlock_irqrestore(&ha->hardware_lock, flags); 158 159 return QLA_SUCCESS; 160} 161 162/** 163 * qla4xxx_get_sys_info - validate adapter MAC address(es) 164 * @ha: pointer to host adapter structure. 165 * 166 **/ 167int qla4xxx_get_sys_info(struct scsi_qla_host *ha) 168{ 169 struct flash_sys_info *sys_info; 170 dma_addr_t sys_info_dma; 171 int status = QLA_ERROR; 172 173 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), 174 &sys_info_dma, GFP_KERNEL); 175 if (sys_info == NULL) { 176 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", 177 ha->host_no, __func__)); 178 179 goto exit_get_sys_info_no_free; 180 } 181 memset(sys_info, 0, sizeof(*sys_info)); 182 183 /* Get flash sys info */ 184 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, 185 sizeof(*sys_info)) != QLA_SUCCESS) { 186 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " 187 "failed\n", ha->host_no, __func__)); 188 189 goto exit_get_sys_info; 190 } 191 192 /* Save M.A.C. address & serial_number */ 193 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], 194 min(sizeof(ha->my_mac), 195 sizeof(sys_info->physAddr[0].address))); 196 memcpy(ha->serial_number, &sys_info->acSerialNumber, 197 min(sizeof(ha->serial_number), 198 sizeof(sys_info->acSerialNumber))); 199 200 status = QLA_SUCCESS; 201 202exit_get_sys_info: 203 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, 204 sys_info_dma); 205 206exit_get_sys_info_no_free: 207 return status; 208} 209 210/** 211 * qla4xxx_init_local_data - initialize adapter specific local data 212 * @ha: pointer to host adapter structure. 213 * 214 **/ 215static int qla4xxx_init_local_data(struct scsi_qla_host *ha) 216{ 217 /* Initialize aen queue */ 218 ha->aen_q_count = MAX_AEN_ENTRIES; 219 220 return qla4xxx_get_firmware_status(ha); 221} 222 223static uint8_t 224qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha) 225{ 226 uint8_t ipv4_wait = 0; 227 uint8_t ipv6_wait = 0; 228 int8_t ip_address[IPv6_ADDR_LEN] = {0} ; 229 230 /* If both IPv4 & IPv6 are enabled, possibly only one 231 * IP address may be acquired, so check to see if we 232 * need to wait for another */ 233 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) { 234 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) && 235 ((ha->addl_fw_state & 236 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) { 237 ipv4_wait = 1; 238 } 239 if (((ha->ipv6_addl_options & 240 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) && 241 ((ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) || 242 (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) || 243 (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING))) { 244 245 ipv6_wait = 1; 246 247 if ((ha->ipv6_link_local_state == 248 IP_ADDRSTATE_PREFERRED) || 249 (ha->ipv6_addr0_state == IP_ADDRSTATE_PREFERRED) || 250 (ha->ipv6_addr1_state == IP_ADDRSTATE_PREFERRED)) { 251 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 252 "Preferred IP configured." 253 " Don't wait!\n", ha->host_no, 254 __func__)); 255 ipv6_wait = 0; 256 } 257 if (memcmp(&ha->ipv6_default_router_addr, ip_address, 258 IPv6_ADDR_LEN) == 0) { 259 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 260 "No Router configured. " 261 "Don't wait!\n", ha->host_no, 262 __func__)); 263 ipv6_wait = 0; 264 } 265 if ((ha->ipv6_default_router_state == 266 IPV6_RTRSTATE_MANUAL) && 267 (ha->ipv6_link_local_state == 268 IP_ADDRSTATE_TENTATIVE) && 269 (memcmp(&ha->ipv6_link_local_addr, 270 &ha->ipv6_default_router_addr, 4) == 0)) { 271 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & " 272 "IP configured. Don't wait!\n", 273 ha->host_no, __func__)); 274 ipv6_wait = 0; 275 } 276 } 277 if (ipv4_wait || ipv6_wait) { 278 DEBUG2(printk("scsi%ld: %s: Wait for additional " 279 "IP(s) \"", ha->host_no, __func__)); 280 if (ipv4_wait) 281 DEBUG2(printk("IPv4 ")); 282 if (ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) 283 DEBUG2(printk("IPv6LinkLocal ")); 284 if (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) 285 DEBUG2(printk("IPv6Addr0 ")); 286 if (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING) 287 DEBUG2(printk("IPv6Addr1 ")); 288 DEBUG2(printk("\"\n")); 289 } 290 } 291 292 return ipv4_wait|ipv6_wait; 293} 294 295static int qla4xxx_fw_ready(struct scsi_qla_host *ha) 296{ 297 uint32_t timeout_count; 298 int ready = 0; 299 300 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); 301 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; 302 timeout_count--) { 303 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 304 qla4xxx_get_dhcp_ip_address(ha); 305 306 /* Get firmware state. */ 307 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { 308 DEBUG2(printk("scsi%ld: %s: unable to get firmware " 309 "state\n", ha->host_no, __func__)); 310 break; 311 } 312 313 if (ha->firmware_state & FW_STATE_ERROR) { 314 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" 315 " occurred\n", ha->host_no, __func__)); 316 break; 317 318 } 319 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { 320 /* 321 * The firmware has not yet been issued an Initialize 322 * Firmware command, so issue it now. 323 */ 324 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) 325 break; 326 327 /* Go back and test for ready state - no wait. */ 328 continue; 329 } 330 331 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 332 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 333 "AUTOCONNECT in progress\n", 334 ha->host_no, __func__)); 335 } 336 337 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 338 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" 339 " CONFIGURING IP\n", 340 ha->host_no, __func__)); 341 /* 342 * Check for link state after 15 secs and if link is 343 * still DOWN then, cable is unplugged. Ignore "DHCP 344 * in Progress/CONFIGURING IP" bit to check if firmware 345 * is in ready state or not after 15 secs. 346 * This is applicable for both 2.x & 3.x firmware 347 */ 348 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) { 349 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) { 350 DEBUG2(printk(KERN_INFO "scsi%ld: %s:" 351 " LINK UP (Cable plugged)\n", 352 ha->host_no, __func__)); 353 } else if (ha->firmware_state & 354 (FW_STATE_CONFIGURING_IP | 355 FW_STATE_READY)) { 356 DEBUG2(printk(KERN_INFO "scsi%ld: %s: " 357 "LINK DOWN (Cable unplugged)\n", 358 ha->host_no, __func__)); 359 ha->firmware_state = FW_STATE_READY; 360 } 361 } 362 } 363 364 if (ha->firmware_state == FW_STATE_READY) { 365 /* If DHCP IP Addr is available, retrieve it now. */ 366 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, 367 &ha->dpc_flags)) 368 qla4xxx_get_dhcp_ip_address(ha); 369 370 if (!qla4xxx_wait_for_ip_config(ha) || 371 timeout_count == 1) { 372 DEBUG2(ql4_printk(KERN_INFO, ha, 373 "Firmware Ready..\n")); 374 /* The firmware is ready to process SCSI 375 commands. */ 376 DEBUG2(ql4_printk(KERN_INFO, ha, 377 "scsi%ld: %s: MEDIA TYPE" 378 " - %s\n", ha->host_no, 379 __func__, (ha->addl_fw_state & 380 FW_ADDSTATE_OPTICAL_MEDIA) 381 != 0 ? "OPTICAL" : "COPPER")); 382 DEBUG2(ql4_printk(KERN_INFO, ha, 383 "scsi%ld: %s: DHCPv4 STATE" 384 " Enabled %s\n", ha->host_no, 385 __func__, (ha->addl_fw_state & 386 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ? 387 "YES" : "NO")); 388 DEBUG2(ql4_printk(KERN_INFO, ha, 389 "scsi%ld: %s: LINK %s\n", 390 ha->host_no, __func__, 391 (ha->addl_fw_state & 392 FW_ADDSTATE_LINK_UP) != 0 ? 393 "UP" : "DOWN")); 394 DEBUG2(ql4_printk(KERN_INFO, ha, 395 "scsi%ld: %s: iSNS Service " 396 "Started %s\n", 397 ha->host_no, __func__, 398 (ha->addl_fw_state & 399 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? 400 "YES" : "NO")); 401 402 ready = 1; 403 break; 404 } 405 } 406 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " 407 "seconds expired= %d\n", ha->host_no, __func__, 408 ha->firmware_state, ha->addl_fw_state, 409 timeout_count)); 410 if (is_qla4032(ha) && 411 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && 412 (timeout_count < ADAPTER_INIT_TOV - 5)) { 413 break; 414 } 415 416 msleep(1000); 417 } /* end of for */ 418 419 if (timeout_count <= 0) 420 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", 421 ha->host_no, __func__)); 422 423 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { 424 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting " 425 "it's waiting to configure an IP address\n", 426 ha->host_no, __func__)); 427 ready = 1; 428 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { 429 DEBUG2(printk("scsi%ld: %s: FW initialized, but " 430 "auto-discovery still in process\n", 431 ha->host_no, __func__)); 432 ready = 1; 433 } 434 435 return ready; 436} 437 438/** 439 * qla4xxx_init_firmware - initializes the firmware. 440 * @ha: pointer to host adapter structure. 441 * 442 **/ 443static int qla4xxx_init_firmware(struct scsi_qla_host *ha) 444{ 445 int status = QLA_ERROR; 446 447 if (is_aer_supported(ha) && 448 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 449 return status; 450 451 /* For 82xx, stop firmware before initializing because if BIOS 452 * has previously initialized firmware, then driver's initialize 453 * firmware will fail. */ 454 if (is_qla8022(ha)) 455 qla4_8xxx_stop_firmware(ha); 456 457 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); 458 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { 459 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " 460 "control block\n", ha->host_no, __func__)); 461 return status; 462 } 463 if (!qla4xxx_fw_ready(ha)) 464 return status; 465 466 return qla4xxx_get_firmware_status(ha); 467} 468 469static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha, 470 uint32_t fw_ddb_index, 471 uint32_t *new_tgt) 472{ 473 struct dev_db_entry *fw_ddb_entry = NULL; 474 dma_addr_t fw_ddb_entry_dma; 475 struct ddb_entry *ddb_entry = NULL; 476 int found = 0; 477 uint32_t device_state; 478 479 *new_tgt = 0; 480 /* Make sure the dma buffer is valid */ 481 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 482 sizeof(*fw_ddb_entry), 483 &fw_ddb_entry_dma, GFP_KERNEL); 484 if (fw_ddb_entry == NULL) { 485 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", 486 ha->host_no, __func__)); 487 goto exit_get_ddb_entry_no_free; 488 } 489 490 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, 491 fw_ddb_entry_dma, NULL, NULL, 492 &device_state, NULL, NULL, NULL) == 493 QLA_ERROR) { 494 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " 495 "fw_ddb_index %d\n", ha->host_no, __func__, 496 fw_ddb_index)); 497 goto exit_get_ddb_entry; 498 } 499 500 /* Allocate DDB if not already allocated. */ 501 DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no, 502 __func__, fw_ddb_index)); 503 list_for_each_entry(ddb_entry, &ha->ddb_list, list) { 504 if ((memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsi_name, 505 ISCSI_NAME_SIZE) == 0) && 506 (ddb_entry->tpgt == 507 le32_to_cpu(fw_ddb_entry->tgt_portal_grp)) && 508 (memcmp(ddb_entry->isid, fw_ddb_entry->isid, 509 sizeof(ddb_entry->isid)) == 0)) { 510 found++; 511 break; 512 } 513 } 514 515 /* if not found allocate new ddb */ 516 if (!found) { 517 DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating " 518 "new ddb\n", ha->host_no, __func__, 519 fw_ddb_index)); 520 *new_tgt = 1; 521 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); 522 } 523 524exit_get_ddb_entry: 525 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 526 fw_ddb_entry_dma); 527 528exit_get_ddb_entry_no_free: 529 return ddb_entry; 530} 531 532/** 533 * qla4xxx_update_ddb_entry - update driver's internal ddb 534 * @ha: pointer to host adapter structure. 535 * @ddb_entry: pointer to device database structure to be filled 536 * @fw_ddb_index: index of the ddb entry in fw ddb table 537 * 538 * This routine updates the driver's internal device database entry 539 * with information retrieved from the firmware's device database 540 * entry for the specified device. The ddb_entry->fw_ddb_index field 541 * must be initialized prior to calling this routine 542 * 543 **/ 544static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha, 545 struct ddb_entry *ddb_entry, 546 uint32_t fw_ddb_index) 547{ 548 struct dev_db_entry *fw_ddb_entry = NULL; 549 dma_addr_t fw_ddb_entry_dma; 550 int status = QLA_ERROR; 551 uint32_t conn_err; 552 553 if (ddb_entry == NULL) { 554 DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no, 555 __func__)); 556 557 goto exit_update_ddb_no_free; 558 } 559 560 /* Make sure the dma buffer is valid */ 561 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 562 sizeof(*fw_ddb_entry), 563 &fw_ddb_entry_dma, GFP_KERNEL); 564 if (fw_ddb_entry == NULL) { 565 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", 566 ha->host_no, __func__)); 567 568 goto exit_update_ddb_no_free; 569 } 570 571 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, 572 fw_ddb_entry_dma, NULL, NULL, 573 &ddb_entry->fw_ddb_device_state, &conn_err, 574 &ddb_entry->tcp_source_port_num, 575 &ddb_entry->connection_id) == 576 QLA_ERROR) { 577 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " 578 "fw_ddb_index %d\n", ha->host_no, __func__, 579 fw_ddb_index)); 580 581 goto exit_update_ddb; 582 } 583 584 status = QLA_SUCCESS; 585 ddb_entry->options = le16_to_cpu(fw_ddb_entry->options); 586 ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid); 587 ddb_entry->task_mgmt_timeout = 588 le16_to_cpu(fw_ddb_entry->def_timeout); 589 ddb_entry->CmdSn = 0; 590 ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle); 591 ddb_entry->default_relogin_timeout = 592 le16_to_cpu(fw_ddb_entry->def_timeout); 593 ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 594 595 /* Update index in case it changed */ 596 ddb_entry->fw_ddb_index = fw_ddb_index; 597 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; 598 599 ddb_entry->port = le16_to_cpu(fw_ddb_entry->port); 600 ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 601 memcpy(ddb_entry->isid, fw_ddb_entry->isid, sizeof(ddb_entry->isid)); 602 603 memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 604 min(sizeof(ddb_entry->iscsi_name), 605 sizeof(fw_ddb_entry->iscsi_name))); 606 memcpy(&ddb_entry->iscsi_alias[0], &fw_ddb_entry->iscsi_alias[0], 607 min(sizeof(ddb_entry->iscsi_alias), 608 sizeof(fw_ddb_entry->iscsi_alias))); 609 memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0], 610 min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr))); 611 612 ddb_entry->iscsi_max_burst_len = fw_ddb_entry->iscsi_max_burst_len; 613 ddb_entry->iscsi_max_outsnd_r2t = fw_ddb_entry->iscsi_max_outsnd_r2t; 614 ddb_entry->iscsi_first_burst_len = fw_ddb_entry->iscsi_first_burst_len; 615 ddb_entry->iscsi_max_rcv_data_seg_len = 616 fw_ddb_entry->iscsi_max_rcv_data_seg_len; 617 ddb_entry->iscsi_max_snd_data_seg_len = 618 fw_ddb_entry->iscsi_max_snd_data_seg_len; 619 620 if (ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 621 memcpy(&ddb_entry->remote_ipv6_addr, 622 fw_ddb_entry->ip_addr, 623 min(sizeof(ddb_entry->remote_ipv6_addr), 624 sizeof(fw_ddb_entry->ip_addr))); 625 memcpy(&ddb_entry->link_local_ipv6_addr, 626 fw_ddb_entry->link_local_ipv6_addr, 627 min(sizeof(ddb_entry->link_local_ipv6_addr), 628 sizeof(fw_ddb_entry->link_local_ipv6_addr))); 629 630 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x" 631 " ConnErr %08x IP %pI6 " 632 ":%04d \"%s\"\n", 633 __func__, fw_ddb_index, 634 ddb_entry->fw_ddb_device_state, 635 conn_err, fw_ddb_entry->ip_addr, 636 le16_to_cpu(fw_ddb_entry->port), 637 fw_ddb_entry->iscsi_name)); 638 } else 639 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x" 640 " ConnErr %08x IP %pI4 " 641 ":%04d \"%s\"\n", 642 __func__, fw_ddb_index, 643 ddb_entry->fw_ddb_device_state, 644 conn_err, fw_ddb_entry->ip_addr, 645 le16_to_cpu(fw_ddb_entry->port), 646 fw_ddb_entry->iscsi_name)); 647exit_update_ddb: 648 if (fw_ddb_entry) 649 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 650 fw_ddb_entry, fw_ddb_entry_dma); 651 652exit_update_ddb_no_free: 653 return status; 654} 655 656/** 657 * qla4xxx_alloc_ddb - allocate device database entry 658 * @ha: Pointer to host adapter structure. 659 * @fw_ddb_index: Firmware's device database index 660 * 661 * This routine allocates a ddb_entry, ititializes some values, and 662 * inserts it into the ddb list. 663 **/ 664static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha, 665 uint32_t fw_ddb_index) 666{ 667 struct ddb_entry *ddb_entry; 668 669 DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no, 670 __func__, fw_ddb_index)); 671 672 ddb_entry = qla4xxx_alloc_sess(ha); 673 if (ddb_entry == NULL) { 674 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " 675 "to add fw_ddb_index [%d]\n", 676 ha->host_no, __func__, fw_ddb_index)); 677 return ddb_entry; 678 } 679 680 ddb_entry->fw_ddb_index = fw_ddb_index; 681 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 682 atomic_set(&ddb_entry->relogin_timer, 0); 683 atomic_set(&ddb_entry->relogin_retry_count, 0); 684 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); 685 list_add_tail(&ddb_entry->list, &ha->ddb_list); 686 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; 687 ha->tot_ddbs++; 688 689 return ddb_entry; 690} 691 692/** 693 * qla4_is_relogin_allowed - Are we allowed to login? 694 * @ha: Pointer to host adapter structure. 695 * @conn_err: Last connection error associated with the ddb 696 * 697 * This routine tests the given connection error to determine if 698 * we are allowed to login. 699 **/ 700int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err) 701{ 702 uint32_t err_code, login_rsp_sts_class; 703 int relogin = 1; 704 705 err_code = ((conn_err & 0x00ff0000) >> 16); 706 login_rsp_sts_class = ((conn_err & 0x0000ff00) >> 8); 707 if (err_code == 0x1c || err_code == 0x06) { 708 DEBUG2(ql4_printk(KERN_INFO, ha, 709 ": conn_err=0x%08x, send target completed" 710 " or access denied failure\n", conn_err)); 711 relogin = 0; 712 } 713 if ((err_code == 0x08) && (login_rsp_sts_class == 0x02)) { 714 /* Login Response PDU returned an error. 715 Login Response Status in Error Code Detail 716 indicates login should not be retried.*/ 717 DEBUG2(ql4_printk(KERN_INFO, ha, 718 ": conn_err=0x%08x, do not retry relogin\n", 719 conn_err)); 720 relogin = 0; 721 } 722 723 return relogin; 724} 725 726/** 727 * qla4xxx_configure_ddbs - builds driver ddb list 728 * @ha: Pointer to host adapter structure. 729 * 730 * This routine searches for all valid firmware ddb entries and builds 731 * an internal ddb list. Ddbs that are considered valid are those with 732 * a device state of SESSION_ACTIVE. 733 **/ 734static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) 735{ 736 int status = QLA_ERROR; 737 uint32_t fw_ddb_index = 0; 738 uint32_t next_fw_ddb_index = 0; 739 uint32_t ddb_state; 740 uint32_t conn_err; 741 struct ddb_entry *ddb_entry; 742 struct dev_db_entry *fw_ddb_entry = NULL; 743 dma_addr_t fw_ddb_entry_dma; 744 uint32_t ipv6_device; 745 uint32_t new_tgt; 746 747 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 748 &fw_ddb_entry_dma, GFP_KERNEL); 749 if (fw_ddb_entry == NULL) { 750 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DMA alloc failed\n", 751 __func__)); 752 753 goto exit_build_ddb_list_no_free; 754 } 755 756 ql4_printk(KERN_INFO, ha, "Initializing DDBs ...\n"); 757 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; 758 fw_ddb_index = next_fw_ddb_index) { 759 /* First, let's see if a device exists here */ 760 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, 761 0, NULL, &next_fw_ddb_index, 762 &ddb_state, &conn_err, 763 NULL, NULL) == 764 QLA_ERROR) { 765 DEBUG2(printk("scsi%ld: %s: get_ddb_entry, " 766 "fw_ddb_index %d failed", ha->host_no, 767 __func__, fw_ddb_index)); 768 goto exit_build_ddb_list; 769 } 770 771 DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, " 772 "next_fw_ddb_index=%d.\n", ha->host_no, __func__, 773 fw_ddb_index, ddb_state, next_fw_ddb_index)); 774 775 /* Issue relogin, if necessary. */ 776 if (ddb_state == DDB_DS_SESSION_FAILED || 777 ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) { 778 /* Try and login to device */ 779 DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n", 780 ha->host_no, __func__, fw_ddb_index)); 781 ipv6_device = le16_to_cpu(fw_ddb_entry->options) & 782 DDB_OPT_IPV6_DEVICE; 783 if (qla4_is_relogin_allowed(ha, conn_err) && 784 ((!ipv6_device && 785 *((uint32_t *)fw_ddb_entry->ip_addr)) 786 || ipv6_device)) { 787 qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0); 788 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, 789 NULL, 0, NULL, 790 &next_fw_ddb_index, 791 &ddb_state, &conn_err, 792 NULL, NULL) 793 == QLA_ERROR) { 794 DEBUG2(printk("scsi%ld: %s:" 795 "get_ddb_entry %d failed\n", 796 ha->host_no, 797 __func__, fw_ddb_index)); 798 goto exit_build_ddb_list; 799 } 800 } 801 } 802 803 if (ddb_state != DDB_DS_SESSION_ACTIVE) 804 goto next_one; 805 /* 806 * if fw_ddb with session active state found, 807 * add to ddb_list 808 */ 809 DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n", 810 ha->host_no, __func__, fw_ddb_index)); 811 812 /* Add DDB to internal our ddb list. */ 813 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt); 814 if (ddb_entry == NULL) { 815 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " 816 "for device at fw_ddb_index %d\n", 817 ha->host_no, __func__, fw_ddb_index)); 818 goto exit_build_ddb_list; 819 } 820 /* Fill in the device structure */ 821 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == 822 QLA_ERROR) { 823 ha->fw_ddb_index_map[fw_ddb_index] = 824 (struct ddb_entry *)INVALID_ENTRY; 825 826 DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed " 827 "for fw_ddb_index %d.\n", 828 ha->host_no, __func__, fw_ddb_index)); 829 goto exit_build_ddb_list; 830 } 831 832next_one: 833 /* We know we've reached the last device when 834 * next_fw_ddb_index is 0 */ 835 if (next_fw_ddb_index == 0) 836 break; 837 } 838 839 status = QLA_SUCCESS; 840 ql4_printk(KERN_INFO, ha, "DDB list done..\n"); 841 842exit_build_ddb_list: 843 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 844 fw_ddb_entry_dma); 845 846exit_build_ddb_list_no_free: 847 return status; 848} 849 850struct qla4_relog_scan { 851 int halt_wait; 852 uint32_t conn_err; 853 uint32_t fw_ddb_index; 854 uint32_t next_fw_ddb_index; 855 uint32_t fw_ddb_device_state; 856}; 857 858static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs) 859{ 860 struct ddb_entry *ddb_entry; 861 862 if (qla4_is_relogin_allowed(ha, rs->conn_err)) { 863 /* We either have a device that is in 864 * the process of relogging in or a 865 * device that is waiting to be 866 * relogged in */ 867 rs->halt_wait = 0; 868 869 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 870 rs->fw_ddb_index); 871 if (ddb_entry == NULL) 872 return QLA_ERROR; 873 874 if (ddb_entry->dev_scan_wait_to_start_relogin != 0 875 && time_after_eq(jiffies, 876 ddb_entry-> 877 dev_scan_wait_to_start_relogin)) 878 { 879 ddb_entry->dev_scan_wait_to_start_relogin = 0; 880 qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0); 881 } 882 } 883 return QLA_SUCCESS; 884} 885 886static int qla4_scan_for_relogin(struct scsi_qla_host *ha, 887 struct qla4_relog_scan *rs) 888{ 889 int error; 890 891 /* scan for relogins 892 * ----------------- */ 893 for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES; 894 rs->fw_ddb_index = rs->next_fw_ddb_index) { 895 if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0, 896 NULL, &rs->next_fw_ddb_index, 897 &rs->fw_ddb_device_state, 898 &rs->conn_err, NULL, NULL) 899 == QLA_ERROR) 900 return QLA_ERROR; 901 902 if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS) 903 rs->halt_wait = 0; 904 905 if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED || 906 rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) { 907 error = qla4_test_rdy(ha, rs); 908 if (error) 909 return error; 910 } 911 912 /* We know we've reached the last device when 913 * next_fw_ddb_index is 0 */ 914 if (rs->next_fw_ddb_index == 0) 915 break; 916 } 917 return QLA_SUCCESS; 918} 919 920/** 921 * qla4xxx_devices_ready - wait for target devices to be logged in 922 * @ha: pointer to adapter structure 923 * 924 * This routine waits up to ql4xdiscoverywait seconds 925 * F/W database during driver load time. 926 **/ 927static int qla4xxx_devices_ready(struct scsi_qla_host *ha) 928{ 929 int error; 930 unsigned long discovery_wtime; 931 struct qla4_relog_scan rs; 932 933 discovery_wtime = jiffies + (ql4xdiscoverywait * HZ); 934 935 DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait)); 936 do { 937 /* poll for AEN. */ 938 qla4xxx_get_firmware_state(ha); 939 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) { 940 /* Set time-between-relogin timer */ 941 qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS); 942 } 943 944 /* if no relogins active or needed, halt discvery wait */ 945 rs.halt_wait = 1; 946 947 error = qla4_scan_for_relogin(ha, &rs); 948 949 if (rs.halt_wait) { 950 DEBUG2(printk("scsi%ld: %s: Delay halted. Devices " 951 "Ready.\n", ha->host_no, __func__)); 952 return QLA_SUCCESS; 953 } 954 955 msleep(2000); 956 } while (!time_after_eq(jiffies, discovery_wtime)); 957 958 DEBUG3(qla4xxx_get_conn_event_log(ha)); 959 960 return QLA_SUCCESS; 961} 962 963static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) 964{ 965 unsigned long wtime; 966 967 /* Flush the 0x8014 AEN from the firmware as a result of 968 * Auto connect. We are basically doing get_firmware_ddb() 969 * to determine whether we need to log back in or not. 970 * Trying to do a set ddb before we have processed 0x8014 971 * will result in another set_ddb() for the same ddb. In other 972 * words there will be stale entries in the aen_q. 973 */ 974 wtime = jiffies + (2 * HZ); 975 do { 976 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) 977 if (ha->firmware_state & (BIT_2 | BIT_0)) 978 return; 979 980 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 981 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 982 983 msleep(1000); 984 } while (!time_after_eq(jiffies, wtime)); 985 986} 987 988static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) 989{ 990 uint16_t fw_ddb_index; 991 int status = QLA_SUCCESS; 992 993 /* free the ddb list if is not empty */ 994 if (!list_empty(&ha->ddb_list)) 995 qla4xxx_free_ddb_list(ha); 996 997 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++) 998 ha->fw_ddb_index_map[fw_ddb_index] = 999 (struct ddb_entry *)INVALID_ENTRY; 1000 1001 ha->tot_ddbs = 0; 1002 1003 qla4xxx_flush_AENS(ha); 1004 1005 /* Wait for an AEN */ 1006 qla4xxx_devices_ready(ha); 1007 1008 /* 1009 * First perform device discovery for active 1010 * fw ddb indexes and build 1011 * ddb list. 1012 */ 1013 if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) 1014 return status; 1015 1016 /* 1017 * Targets can come online after the inital discovery, so processing 1018 * the aens here will catch them. 1019 */ 1020 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 1021 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 1022 1023 return status; 1024} 1025 1026/** 1027 * qla4xxx_reinitialize_ddb_list - update the driver ddb list 1028 * @ha: pointer to host adapter structure. 1029 * 1030 * This routine obtains device information from the F/W database after 1031 * firmware or adapter resets. The device table is preserved. 1032 **/ 1033int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha) 1034{ 1035 int status = QLA_SUCCESS; 1036 struct ddb_entry *ddb_entry, *detemp; 1037 1038 /* Update the device information for all devices. */ 1039 list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) { 1040 qla4xxx_update_ddb_entry(ha, ddb_entry, 1041 ddb_entry->fw_ddb_index); 1042 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 1043 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); 1044 DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked " 1045 "ONLINE\n", ha->host_no, __func__, 1046 ddb_entry->fw_ddb_index)); 1047 iscsi_unblock_session(ddb_entry->sess); 1048 } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) 1049 qla4xxx_mark_device_missing(ha, ddb_entry); 1050 } 1051 return status; 1052} 1053 1054/** 1055 * qla4xxx_relogin_device - re-establish session 1056 * @ha: Pointer to host adapter structure. 1057 * @ddb_entry: Pointer to device database entry 1058 * 1059 * This routine does a session relogin with the specified device. 1060 * The ddb entry must be assigned prior to making this call. 1061 **/ 1062int qla4xxx_relogin_device(struct scsi_qla_host *ha, 1063 struct ddb_entry * ddb_entry) 1064{ 1065 uint16_t relogin_timer; 1066 1067 relogin_timer = max(ddb_entry->default_relogin_timeout, 1068 (uint16_t)RELOGIN_TOV); 1069 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 1070 1071 DEBUG2(printk("scsi%ld: Relogin ddb [%d]. TOV=%d\n", ha->host_no, 1072 ddb_entry->fw_ddb_index, relogin_timer)); 1073 1074 qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0); 1075 1076 return QLA_SUCCESS; 1077} 1078 1079static int qla4xxx_config_nvram(struct scsi_qla_host *ha) 1080{ 1081 unsigned long flags; 1082 union external_hw_config_reg extHwConfig; 1083 1084 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, 1085 __func__)); 1086 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) 1087 return QLA_ERROR; 1088 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { 1089 ql4xxx_unlock_flash(ha); 1090 return QLA_ERROR; 1091 } 1092 1093 /* Get EEPRom Parameters from NVRAM and validate */ 1094 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); 1095 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { 1096 spin_lock_irqsave(&ha->hardware_lock, flags); 1097 extHwConfig.Asuint32_t = 1098 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); 1099 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1100 } else { 1101 ql4_printk(KERN_WARNING, ha, 1102 "scsi%ld: %s: EEProm checksum invalid. " 1103 "Please update your EEPROM\n", ha->host_no, 1104 __func__); 1105 1106 /* Attempt to set defaults */ 1107 if (is_qla4010(ha)) 1108 extHwConfig.Asuint32_t = 0x1912; 1109 else if (is_qla4022(ha) | is_qla4032(ha)) 1110 extHwConfig.Asuint32_t = 0x0023; 1111 else 1112 return QLA_ERROR; 1113 } 1114 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", 1115 ha->host_no, __func__, extHwConfig.Asuint32_t)); 1116 1117 spin_lock_irqsave(&ha->hardware_lock, flags); 1118 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); 1119 readl(isp_ext_hw_conf(ha)); 1120 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1121 1122 ql4xxx_unlock_nvram(ha); 1123 ql4xxx_unlock_flash(ha); 1124 1125 return QLA_SUCCESS; 1126} 1127 1128/** 1129 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. 1130 * @ha: HA context 1131 */ 1132void qla4_8xxx_pci_config(struct scsi_qla_host *ha) 1133{ 1134 pci_set_master(ha->pdev); 1135} 1136 1137void qla4xxx_pci_config(struct scsi_qla_host *ha) 1138{ 1139 uint16_t w; 1140 int status; 1141 1142 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 1143 1144 pci_set_master(ha->pdev); 1145 status = pci_set_mwi(ha->pdev); 1146 /* 1147 * We want to respect framework's setting of PCI configuration space 1148 * command register and also want to make sure that all bits of 1149 * interest to us are properly set in command register. 1150 */ 1151 pci_read_config_word(ha->pdev, PCI_COMMAND, &w); 1152 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; 1153 w &= ~PCI_COMMAND_INTX_DISABLE; 1154 pci_write_config_word(ha->pdev, PCI_COMMAND, w); 1155} 1156 1157static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) 1158{ 1159 int status = QLA_ERROR; 1160 unsigned long max_wait_time; 1161 unsigned long flags; 1162 uint32_t mbox_status; 1163 1164 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n"); 1165 1166 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", 1167 ha->host_no, __func__)); 1168 1169 spin_lock_irqsave(&ha->hardware_lock, flags); 1170 writel(jiffies, &ha->reg->mailbox[7]); 1171 if (is_qla4022(ha) | is_qla4032(ha)) 1172 writel(set_rmask(NVR_WRITE_ENABLE), 1173 &ha->reg->u1.isp4022.nvram); 1174 1175 writel(2, &ha->reg->mailbox[6]); 1176 readl(&ha->reg->mailbox[6]); 1177 1178 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); 1179 readl(&ha->reg->ctrl_status); 1180 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1181 1182 /* Wait for firmware to come UP. */ 1183 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for " 1184 "boot firmware to complete...\n", 1185 ha->host_no, __func__, FIRMWARE_UP_TOV)); 1186 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ); 1187 do { 1188 uint32_t ctrl_status; 1189 1190 spin_lock_irqsave(&ha->hardware_lock, flags); 1191 ctrl_status = readw(&ha->reg->ctrl_status); 1192 mbox_status = readw(&ha->reg->mailbox[0]); 1193 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1194 1195 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) 1196 break; 1197 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) 1198 break; 1199 1200 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot " 1201 "firmware to complete... ctrl_sts=0x%x\n", 1202 ha->host_no, __func__, ctrl_status)); 1203 1204 msleep_interruptible(250); 1205 } while (!time_after_eq(jiffies, max_wait_time)); 1206 1207 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { 1208 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n", 1209 ha->host_no, __func__)); 1210 1211 spin_lock_irqsave(&ha->hardware_lock, flags); 1212 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 1213 &ha->reg->ctrl_status); 1214 readl(&ha->reg->ctrl_status); 1215 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1216 1217 status = QLA_SUCCESS; 1218 } else { 1219 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " 1220 "- mbox status 0x%x\n", ha->host_no, __func__, 1221 mbox_status); 1222 status = QLA_ERROR; 1223 } 1224 return status; 1225} 1226 1227int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) 1228{ 1229#define QL4_LOCK_DRVR_WAIT 60 1230#define QL4_LOCK_DRVR_SLEEP 1 1231 1232 int drvr_wait = QL4_LOCK_DRVR_WAIT; 1233 while (drvr_wait) { 1234 if (ql4xxx_lock_drvr(a) == 0) { 1235 ssleep(QL4_LOCK_DRVR_SLEEP); 1236 if (drvr_wait) { 1237 DEBUG2(printk("scsi%ld: %s: Waiting for " 1238 "Global Init Semaphore(%d)...\n", 1239 a->host_no, 1240 __func__, drvr_wait)); 1241 } 1242 drvr_wait -= QL4_LOCK_DRVR_SLEEP; 1243 } else { 1244 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " 1245 "acquired\n", a->host_no, __func__)); 1246 return QLA_SUCCESS; 1247 } 1248 } 1249 return QLA_ERROR; 1250} 1251 1252/** 1253 * qla4xxx_start_firmware - starts qla4xxx firmware 1254 * @ha: Pointer to host adapter structure. 1255 * 1256 * This routine performs the necessary steps to start the firmware for 1257 * the QLA4010 adapter. 1258 **/ 1259int qla4xxx_start_firmware(struct scsi_qla_host *ha) 1260{ 1261 unsigned long flags = 0; 1262 uint32_t mbox_status; 1263 int status = QLA_ERROR; 1264 int soft_reset = 1; 1265 int config_chip = 0; 1266 1267 if (is_qla4022(ha) | is_qla4032(ha)) 1268 ql4xxx_set_mac_number(ha); 1269 1270 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1271 return QLA_ERROR; 1272 1273 spin_lock_irqsave(&ha->hardware_lock, flags); 1274 1275 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, 1276 __func__, readw(isp_port_ctrl(ha)))); 1277 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, 1278 __func__, readw(isp_port_status(ha)))); 1279 1280 /* Is Hardware already initialized? */ 1281 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { 1282 DEBUG(printk("scsi%ld: %s: Hardware has already been " 1283 "initialized\n", ha->host_no, __func__)); 1284 1285 /* Receive firmware boot acknowledgement */ 1286 mbox_status = readw(&ha->reg->mailbox[0]); 1287 1288 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " 1289 "0x%x\n", ha->host_no, __func__, mbox_status)); 1290 1291 /* Is firmware already booted? */ 1292 if (mbox_status == 0) { 1293 /* F/W not running, must be config by net driver */ 1294 config_chip = 1; 1295 soft_reset = 0; 1296 } else { 1297 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 1298 &ha->reg->ctrl_status); 1299 readl(&ha->reg->ctrl_status); 1300 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1301 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { 1302 DEBUG2(printk("scsi%ld: %s: Get firmware " 1303 "state -- state = 0x%x\n", 1304 ha->host_no, 1305 __func__, ha->firmware_state)); 1306 /* F/W is running */ 1307 if (ha->firmware_state & 1308 FW_STATE_CONFIG_WAIT) { 1309 DEBUG2(printk("scsi%ld: %s: Firmware " 1310 "in known state -- " 1311 "config and " 1312 "boot, state = 0x%x\n", 1313 ha->host_no, __func__, 1314 ha->firmware_state)); 1315 config_chip = 1; 1316 soft_reset = 0; 1317 } 1318 } else { 1319 DEBUG2(printk("scsi%ld: %s: Firmware in " 1320 "unknown state -- resetting," 1321 " state = " 1322 "0x%x\n", ha->host_no, __func__, 1323 ha->firmware_state)); 1324 } 1325 spin_lock_irqsave(&ha->hardware_lock, flags); 1326 } 1327 } else { 1328 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " 1329 "started - resetting\n", ha->host_no, __func__)); 1330 } 1331 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1332 1333 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", 1334 ha->host_no, __func__, soft_reset, config_chip)); 1335 if (soft_reset) { 1336 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, 1337 __func__)); 1338 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr 1339 * lock again, but ok */ 1340 if (status == QLA_ERROR) { 1341 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", 1342 ha->host_no, __func__)); 1343 ql4xxx_unlock_drvr(ha); 1344 return QLA_ERROR; 1345 } 1346 config_chip = 1; 1347 1348 /* Reset clears the semaphore, so acquire again */ 1349 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1350 return QLA_ERROR; 1351 } 1352 1353 if (config_chip) { 1354 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) 1355 status = qla4xxx_start_firmware_from_flash(ha); 1356 } 1357 1358 ql4xxx_unlock_drvr(ha); 1359 if (status == QLA_SUCCESS) { 1360 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) 1361 qla4xxx_get_crash_record(ha); 1362 } else { 1363 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", 1364 ha->host_no, __func__)); 1365 } 1366 return status; 1367} 1368 1369 1370/** 1371 * qla4xxx_initialize_adapter - initiailizes hba 1372 * @ha: Pointer to host adapter structure. 1373 * @renew_ddb_list: Indicates what to do with the adapter's ddb list 1374 * after adapter recovery has completed. 1375 * 0=preserve ddb list, 1=destroy and rebuild ddb list 1376 * 1377 * This routine parforms all of the steps necessary to initialize the adapter. 1378 * 1379 **/ 1380int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, 1381 uint8_t renew_ddb_list) 1382{ 1383 int status = QLA_ERROR; 1384 int8_t ip_address[IP_ADDR_LEN] = {0} ; 1385 1386 ha->eeprom_cmd_data = 0; 1387 1388 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 1389 ha->isp_ops->pci_config(ha); 1390 1391 ha->isp_ops->disable_intrs(ha); 1392 1393 /* Initialize the Host adapter request/response queues and firmware */ 1394 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) 1395 goto exit_init_hba; 1396 1397 if (qla4xxx_get_fw_version(ha) == QLA_ERROR) 1398 goto exit_init_hba; 1399 1400 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR) 1401 goto exit_init_hba; 1402 1403 if (qla4xxx_init_local_data(ha) == QLA_ERROR) 1404 goto exit_init_hba; 1405 1406 status = qla4xxx_init_firmware(ha); 1407 if (status == QLA_ERROR) 1408 goto exit_init_hba; 1409 1410 /* 1411 * FW is waiting to get an IP address from DHCP server: Skip building 1412 * the ddb_list and wait for DHCP lease acquired aen to come in 1413 * followed by 0x8014 aen" to trigger the tgt discovery process. 1414 */ 1415 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) 1416 goto exit_init_online; 1417 1418 /* Skip device discovery if ip and subnet is zero */ 1419 if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 || 1420 memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0) 1421 goto exit_init_online; 1422 1423 if (renew_ddb_list == PRESERVE_DDB_LIST) { 1424 /* 1425 * We want to preserve lun states (i.e. suspended, etc.) 1426 * for recovery initiated by the driver. So just update 1427 * the device states for the existing ddb_list. 1428 */ 1429 qla4xxx_reinitialize_ddb_list(ha); 1430 } else if (renew_ddb_list == REBUILD_DDB_LIST) { 1431 /* 1432 * We want to build the ddb_list from scratch during 1433 * driver initialization and recovery initiated by the 1434 * INT_HBA_RESET IOCTL. 1435 */ 1436 status = qla4xxx_initialize_ddb_list(ha); 1437 if (status == QLA_ERROR) { 1438 DEBUG2(printk("%s(%ld) Error occurred during build" 1439 "ddb list\n", __func__, ha->host_no)); 1440 goto exit_init_hba; 1441 } 1442 1443 } 1444 if (!ha->tot_ddbs) { 1445 DEBUG2(printk("scsi%ld: Failed to initialize devices or none " 1446 "present in Firmware device database\n", 1447 ha->host_no)); 1448 } 1449 1450exit_init_online: 1451 set_bit(AF_ONLINE, &ha->flags); 1452exit_init_hba: 1453 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, 1454 status == QLA_ERROR ? "FAILED" : "SUCCEDED")); 1455 return status; 1456} 1457 1458/** 1459 * qla4xxx_add_device_dynamically - ddb addition due to an AEN 1460 * @ha: Pointer to host adapter structure. 1461 * @fw_ddb_index: Firmware's device database index 1462 * 1463 * This routine processes adds a device as a result of an 8014h AEN. 1464 **/ 1465static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha, 1466 uint32_t fw_ddb_index) 1467{ 1468 struct ddb_entry * ddb_entry; 1469 uint32_t new_tgt; 1470 1471 /* First allocate a device structure */ 1472 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt); 1473 if (ddb_entry == NULL) { 1474 DEBUG2(printk(KERN_WARNING 1475 "scsi%ld: Unable to allocate memory to add " 1476 "fw_ddb_index %d\n", ha->host_no, fw_ddb_index)); 1477 return; 1478 } 1479 1480 if (!new_tgt && (ddb_entry->fw_ddb_index != fw_ddb_index)) { 1481 /* Target has been bound to a new fw_ddb_index */ 1482 qla4xxx_free_ddb(ha, ddb_entry); 1483 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); 1484 if (ddb_entry == NULL) { 1485 DEBUG2(printk(KERN_WARNING 1486 "scsi%ld: Unable to allocate memory" 1487 " to add fw_ddb_index %d\n", 1488 ha->host_no, fw_ddb_index)); 1489 return; 1490 } 1491 } 1492 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == 1493 QLA_ERROR) { 1494 ha->fw_ddb_index_map[fw_ddb_index] = 1495 (struct ddb_entry *)INVALID_ENTRY; 1496 DEBUG2(printk(KERN_WARNING 1497 "scsi%ld: failed to add new device at index " 1498 "[%d]\n Unable to retrieve fw ddb entry\n", 1499 ha->host_no, fw_ddb_index)); 1500 qla4xxx_free_ddb(ha, ddb_entry); 1501 return; 1502 } 1503 1504 if (qla4xxx_add_sess(ddb_entry)) { 1505 DEBUG2(printk(KERN_WARNING 1506 "scsi%ld: failed to add new device at index " 1507 "[%d]\n Unable to add connection and session\n", 1508 ha->host_no, fw_ddb_index)); 1509 qla4xxx_free_ddb(ha, ddb_entry); 1510 } 1511} 1512 1513/** 1514 * qla4xxx_process_ddb_changed - process ddb state change 1515 * @ha - Pointer to host adapter structure. 1516 * @fw_ddb_index - Firmware's device database index 1517 * @state - Device state 1518 * 1519 * This routine processes a Decive Database Changed AEN Event. 1520 **/ 1521int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, 1522 uint32_t state, uint32_t conn_err) 1523{ 1524 struct ddb_entry * ddb_entry; 1525 uint32_t old_fw_ddb_device_state; 1526 1527 /* check for out of range index */ 1528 if (fw_ddb_index >= MAX_DDB_ENTRIES) 1529 return QLA_ERROR; 1530 1531 /* Get the corresponging ddb entry */ 1532 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); 1533 /* Device does not currently exist in our database. */ 1534 if (ddb_entry == NULL) { 1535 if (state == DDB_DS_SESSION_ACTIVE) 1536 qla4xxx_add_device_dynamically(ha, fw_ddb_index); 1537 return QLA_SUCCESS; 1538 } 1539 1540 /* Device already exists in our database. */ 1541 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; 1542 DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for " 1543 "index [%d]\n", ha->host_no, __func__, 1544 ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); 1545 if (old_fw_ddb_device_state == state && 1546 state == DDB_DS_SESSION_ACTIVE) { 1547 if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 1548 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); 1549 iscsi_unblock_session(ddb_entry->sess); 1550 } 1551 return QLA_SUCCESS; 1552 } 1553 1554 ddb_entry->fw_ddb_device_state = state; 1555 /* Device is back online. */ 1556 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 1557 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); 1558 atomic_set(&ddb_entry->relogin_retry_count, 0); 1559 atomic_set(&ddb_entry->relogin_timer, 0); 1560 clear_bit(DF_RELOGIN, &ddb_entry->flags); 1561 clear_bit(DF_NO_RELOGIN, &ddb_entry->flags); 1562 iscsi_unblock_session(ddb_entry->sess); 1563 iscsi_session_event(ddb_entry->sess, 1564 ISCSI_KEVENT_CREATE_SESSION); 1565 /* 1566 * Change the lun state to READY in case the lun TIMEOUT before 1567 * the device came back. 1568 */ 1569 } else { 1570 /* Device went away, mark device missing */ 1571 if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) { 1572 DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing " 1573 "ddb_entry 0x%p sess 0x%p conn 0x%p\n", 1574 __func__, ddb_entry, 1575 ddb_entry->sess, ddb_entry->conn)); 1576 qla4xxx_mark_device_missing(ha, ddb_entry); 1577 } 1578 1579 /* 1580 * Relogin if device state changed to a not active state. 1581 * However, do not relogin if a RELOGIN is in process, or 1582 * we are not allowed to relogin to this DDB. 1583 */ 1584 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && 1585 !test_bit(DF_RELOGIN, &ddb_entry->flags) && 1586 !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) && 1587 qla4_is_relogin_allowed(ha, conn_err)) { 1588 /* 1589 * This triggers a relogin. After the relogin_timer 1590 * expires, the relogin gets scheduled. We must wait a 1591 * minimum amount of time since receiving an 0x8014 AEN 1592 * with failed device_state or a logout response before 1593 * we can issue another relogin. 1594 */ 1595 /* Firmware pads this timeout: (time2wait +1). 1596 * Driver retry to login should be longer than F/W. 1597 * Otherwise F/W will fail 1598 * set_ddb() mbx cmd with 0x4005 since it still 1599 * counting down its time2wait. 1600 */ 1601 atomic_set(&ddb_entry->relogin_timer, 0); 1602 atomic_set(&ddb_entry->retry_relogin_timer, 1603 ddb_entry->default_time2wait + 4); 1604 DEBUG(printk("scsi%ld: %s: ddb[%d] " 1605 "initiate relogin after %d seconds\n", 1606 ha->host_no, __func__, 1607 ddb_entry->fw_ddb_index, 1608 ddb_entry->default_time2wait + 4)); 1609 } else { 1610 DEBUG(printk("scsi%ld: %s: ddb[%d] " 1611 "relogin not initiated, state = %d, " 1612 "ddb_entry->flags = 0x%lx\n", 1613 ha->host_no, __func__, 1614 ddb_entry->fw_ddb_index, 1615 ddb_entry->fw_ddb_device_state, 1616 ddb_entry->flags)); 1617 } 1618 } 1619 return QLA_SUCCESS; 1620} 1621