| 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 | |
| 13 | static 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 | **/ |
| 47 | void 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 | **/ |
| 63 | static 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 | **/ |
| 83 | int 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 | **/ |
| 147 | int 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 | |
| 181 | exit_get_sys_info: |
| 182 | dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, |
| 183 | sys_info_dma); |
| 184 | |
| 185 | exit_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 | **/ |
| 194 | static 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 | |
| 200 | static uint8_t |
| 201 | qla4xxx_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 | |
| 281 | static 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 | **/ |
| 304 | void 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 | |
| 396 | alloc_cleanup: |
| 397 | dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, |
| 398 | md_tmp, md_tmp_dma); |
| 399 | } |
| 400 | |
| 401 | static 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 | **/ |
| 549 | static 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 | |
| 579 | static 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 | |
| 594 | static 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 | */ |
| 653 | void qla4_8xxx_pci_config(struct scsi_qla_host *ha) |
| 654 | { |
| 655 | pci_set_master(ha->pdev); |
| 656 | } |
| 657 | |
| 658 | void 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 | |
| 681 | static 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 | |
| 760 | int 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 | **/ |
| 790 | int 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 | **/ |
| 912 | void 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 | **/ |
| 953 | int 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 | |
| 995 | exit_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 | |
| 1001 | int 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 | |
| 1074 | void 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 | |
| 1095 | int 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 | **/ |
| 1167 | int 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 | |
| 1192 | exit_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 | **/ |
| 1203 | void 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 | |
| 1261 | exit_login: |
| 1262 | if (fw_ddb_entry) |
| 1263 | dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); |
| 1264 | } |
| 1265 | |