1266 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * QLogic iSCSI HBA Driver4 * Copyright (c) 2003-2013 QLogic Corporation5 */6 7#include <scsi/iscsi_if.h>8#include "ql4_def.h"9#include "ql4_glbl.h"10#include "ql4_dbg.h"11#include "ql4_inline.h"12 13static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)14{15 uint32_t value;16 unsigned long flags;17 18 /* Get the function number */19 spin_lock_irqsave(&ha->hardware_lock, flags);20 value = readw(&ha->reg->ctrl_status);21 spin_unlock_irqrestore(&ha->hardware_lock, flags);22 23 switch (value & ISP_CONTROL_FN_MASK) {24 case ISP_CONTROL_FN0_SCSI:25 ha->mac_index = 1;26 break;27 case ISP_CONTROL_FN1_SCSI:28 ha->mac_index = 3;29 break;30 default:31 DEBUG2(printk("scsi%ld: %s: Invalid function number, "32 "ispControlStatus = 0x%x\n", ha->host_no,33 __func__, value));34 break;35 }36 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,37 ha->mac_index));38}39 40/**41 * qla4xxx_free_ddb - deallocate ddb42 * @ha: pointer to host adapter structure.43 * @ddb_entry: pointer to device database entry44 *45 * This routine marks a DDB entry INVALID46 **/47void qla4xxx_free_ddb(struct scsi_qla_host *ha,48 struct ddb_entry *ddb_entry)49{50 /* Remove device pointer from index mapping arrays */51 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =52 (struct ddb_entry *) INVALID_ENTRY;53 ha->tot_ddbs--;54}55 56/**57 * qla4xxx_init_response_q_entries() - Initializes response queue entries.58 * @ha: HA context59 *60 * Beginning of request ring has initialization control block already built61 * by nvram config routine.62 **/63static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)64{65 uint16_t cnt;66 struct response *pkt;67 68 pkt = (struct response *)ha->response_ptr;69 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {70 pkt->signature = RESPONSE_PROCESSED;71 pkt++;72 }73}74 75/**76 * qla4xxx_init_rings - initialize hw queues77 * @ha: pointer to host adapter structure.78 *79 * This routine initializes the internal queues for the specified adapter.80 * The QLA4010 requires us to restart the queues at index 0.81 * The QLA4000 doesn't care, so just default to QLA4010's requirement.82 **/83int qla4xxx_init_rings(struct scsi_qla_host *ha)84{85 unsigned long flags = 0;86 int i;87 88 /* Initialize request queue. */89 spin_lock_irqsave(&ha->hardware_lock, flags);90 ha->request_out = 0;91 ha->request_in = 0;92 ha->request_ptr = &ha->request_ring[ha->request_in];93 ha->req_q_count = REQUEST_QUEUE_DEPTH;94 95 /* Initialize response queue. */96 ha->response_in = 0;97 ha->response_out = 0;98 ha->response_ptr = &ha->response_ring[ha->response_out];99 100 if (is_qla8022(ha)) {101 writel(0,102 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out);103 writel(0,104 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in);105 writel(0,106 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out);107 } else if (is_qla8032(ha) || is_qla8042(ha)) {108 writel(0,109 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in);110 writel(0,111 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in);112 writel(0,113 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out);114 } else {115 /*116 * Initialize DMA Shadow registers. The firmware is really117 * supposed to take care of this, but on some uniprocessor118 * systems, the shadow registers aren't cleared-- causing119 * the interrupt_handler to think there are responses to be120 * processed when there aren't.121 */122 ha->shadow_regs->req_q_out = cpu_to_le32(0);123 ha->shadow_regs->rsp_q_in = cpu_to_le32(0);124 wmb();125 126 writel(0, &ha->reg->req_q_in);127 writel(0, &ha->reg->rsp_q_out);128 readl(&ha->reg->rsp_q_out);129 }130 131 qla4xxx_init_response_q_entries(ha);132 133 /* Initialize mailbox active array */134 for (i = 0; i < MAX_MRB; i++)135 ha->active_mrb_array[i] = NULL;136 137 spin_unlock_irqrestore(&ha->hardware_lock, flags);138 139 return QLA_SUCCESS;140}141 142/**143 * qla4xxx_get_sys_info - validate adapter MAC address(es)144 * @ha: pointer to host adapter structure.145 *146 **/147int qla4xxx_get_sys_info(struct scsi_qla_host *ha)148{149 struct flash_sys_info *sys_info;150 dma_addr_t sys_info_dma;151 int status = QLA_ERROR;152 153 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),154 &sys_info_dma, GFP_KERNEL);155 if (sys_info == NULL) {156 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",157 ha->host_no, __func__));158 159 goto exit_get_sys_info_no_free;160 }161 162 /* Get flash sys info */163 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,164 sizeof(*sys_info)) != QLA_SUCCESS) {165 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "166 "failed\n", ha->host_no, __func__));167 168 goto exit_get_sys_info;169 }170 171 /* Save M.A.C. address & serial_number */172 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],173 min(sizeof(ha->my_mac),174 sizeof(sys_info->physAddr[0].address)));175 memcpy(ha->serial_number, &sys_info->acSerialNumber,176 min(sizeof(ha->serial_number),177 sizeof(sys_info->acSerialNumber)));178 179 status = QLA_SUCCESS;180 181exit_get_sys_info:182 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,183 sys_info_dma);184 185exit_get_sys_info_no_free:186 return status;187}188 189/**190 * qla4xxx_init_local_data - initialize adapter specific local data191 * @ha: pointer to host adapter structure.192 *193 **/194static void qla4xxx_init_local_data(struct scsi_qla_host *ha)195{196 /* Initialize aen queue */197 ha->aen_q_count = MAX_AEN_ENTRIES;198}199 200static uint8_t201qla4xxx_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 one208 * IP address may be acquired, so check to see if we209 * need to wait for another */210 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {211 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&212 ((ha->addl_fw_state &213 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {214 ipv4_wait = 1;215 }216 if (((ha->ip_config.ipv6_addl_options &217 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&218 ((ha->ip_config.ipv6_link_local_state ==219 IP_ADDRSTATE_ACQUIRING) ||220 (ha->ip_config.ipv6_addr0_state ==221 IP_ADDRSTATE_ACQUIRING) ||222 (ha->ip_config.ipv6_addr1_state ==223 IP_ADDRSTATE_ACQUIRING))) {224 225 ipv6_wait = 1;226 227 if ((ha->ip_config.ipv6_link_local_state ==228 IP_ADDRSTATE_PREFERRED) ||229 (ha->ip_config.ipv6_addr0_state ==230 IP_ADDRSTATE_PREFERRED) ||231 (ha->ip_config.ipv6_addr1_state ==232 IP_ADDRSTATE_PREFERRED)) {233 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "234 "Preferred IP configured."235 " Don't wait!\n", ha->host_no,236 __func__));237 ipv6_wait = 0;238 }239 if (memcmp(&ha->ip_config.ipv6_default_router_addr,240 ip_address, IPv6_ADDR_LEN) == 0) {241 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "242 "No Router configured. "243 "Don't wait!\n", ha->host_no,244 __func__));245 ipv6_wait = 0;246 }247 if ((ha->ip_config.ipv6_default_router_state ==248 IPV6_RTRSTATE_MANUAL) &&249 (ha->ip_config.ipv6_link_local_state ==250 IP_ADDRSTATE_TENTATIVE) &&251 (memcmp(&ha->ip_config.ipv6_link_local_addr,252 &ha->ip_config.ipv6_default_router_addr, 4) ==253 0)) {254 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "255 "IP configured. Don't wait!\n",256 ha->host_no, __func__));257 ipv6_wait = 0;258 }259 }260 if (ipv4_wait || ipv6_wait) {261 DEBUG2(printk("scsi%ld: %s: Wait for additional "262 "IP(s) \"", ha->host_no, __func__));263 if (ipv4_wait)264 DEBUG2(printk("IPv4 "));265 if (ha->ip_config.ipv6_link_local_state ==266 IP_ADDRSTATE_ACQUIRING)267 DEBUG2(printk("IPv6LinkLocal "));268 if (ha->ip_config.ipv6_addr0_state ==269 IP_ADDRSTATE_ACQUIRING)270 DEBUG2(printk("IPv6Addr0 "));271 if (ha->ip_config.ipv6_addr1_state ==272 IP_ADDRSTATE_ACQUIRING)273 DEBUG2(printk("IPv6Addr1 "));274 DEBUG2(printk("\"\n"));275 }276 }277 278 return ipv4_wait|ipv6_wait;279}280 281static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha,282 struct qla4_8xxx_minidump_template_hdr *md_hdr)283{284 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET :285 QLA83XX_TEMPLATE_CAP_OFFSET;286 int rval = 1;287 uint32_t *cap_offset;288 289 cap_offset = (uint32_t *)((char *)md_hdr + offset);290 291 if (!(le32_to_cpu(*cap_offset) & BIT_0)) {292 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n",293 *cap_offset);294 rval = 0;295 }296 297 return rval;298}299 300/**301 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.302 * @ha: pointer to host adapter structure.303 **/304void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)305{306 int status;307 uint32_t capture_debug_level;308 int hdr_entry_bit, k;309 void *md_tmp;310 dma_addr_t md_tmp_dma;311 struct qla4_8xxx_minidump_template_hdr *md_hdr;312 int dma_capable;313 314 if (ha->fw_dump) {315 ql4_printk(KERN_WARNING, ha,316 "Firmware dump previously allocated.\n");317 return;318 }319 320 status = qla4xxx_req_template_size(ha);321 if (status != QLA_SUCCESS) {322 ql4_printk(KERN_INFO, ha,323 "scsi%ld: Failed to get template size\n",324 ha->host_no);325 return;326 }327 328 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);329 330 /* Allocate memory for saving the template */331 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,332 &md_tmp_dma, GFP_KERNEL);333 if (!md_tmp) {334 ql4_printk(KERN_INFO, ha,335 "scsi%ld: Failed to allocate DMA memory\n",336 ha->host_no);337 return;338 }339 340 /* Request template */341 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);342 if (status != QLA_SUCCESS) {343 ql4_printk(KERN_INFO, ha,344 "scsi%ld: Failed to get minidump template\n",345 ha->host_no);346 goto alloc_cleanup;347 }348 349 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;350 351 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr);352 353 capture_debug_level = md_hdr->capture_debug_level;354 355 /* Get capture mask based on module loadtime setting. */356 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) ||357 (ql4xmdcapmask == 0xFF && dma_capable)) {358 ha->fw_dump_capture_mask = ql4xmdcapmask;359 } else {360 if (ql4xmdcapmask == 0xFF)361 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n");362 ha->fw_dump_capture_mask = capture_debug_level;363 }364 365 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;366 367 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",368 md_hdr->num_of_entries));369 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",370 ha->fw_dump_tmplt_size));371 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",372 ha->fw_dump_capture_mask));373 374 /* Calculate fw_dump_size */375 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);376 hdr_entry_bit <<= 1, k++) {377 if (hdr_entry_bit & ha->fw_dump_capture_mask)378 ha->fw_dump_size += md_hdr->capture_size_array[k];379 }380 381 /* Total firmware dump size including command header */382 ha->fw_dump_size += ha->fw_dump_tmplt_size;383 ha->fw_dump = vmalloc(ha->fw_dump_size);384 if (!ha->fw_dump)385 goto alloc_cleanup;386 387 DEBUG2(ql4_printk(KERN_INFO, ha,388 "Minidump Template Size = 0x%x KB\n",389 ha->fw_dump_tmplt_size));390 DEBUG2(ql4_printk(KERN_INFO, ha,391 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));392 393 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);394 ha->fw_dump_tmplt_hdr = ha->fw_dump;395 396alloc_cleanup:397 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,398 md_tmp, md_tmp_dma);399}400 401static int qla4xxx_fw_ready(struct scsi_qla_host *ha)402{403 uint32_t timeout_count;404 int ready = 0;405 406 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));407 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;408 timeout_count--) {409 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))410 qla4xxx_get_dhcp_ip_address(ha);411 412 /* Get firmware state. */413 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {414 DEBUG2(printk("scsi%ld: %s: unable to get firmware "415 "state\n", ha->host_no, __func__));416 break;417 }418 419 if (ha->firmware_state & FW_STATE_ERROR) {420 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"421 " occurred\n", ha->host_no, __func__));422 break;423 424 }425 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {426 /*427 * The firmware has not yet been issued an Initialize428 * 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 is449 * still DOWN then, cable is unplugged. Ignore "DHCP450 * in Progress/CONFIGURING IP" bit to check if firmware451 * is in ready state or not after 15 secs.452 * This is applicable for both 2.x & 3.x firmware453 */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 SCSI481 commands. */482 DEBUG2(ql4_printk(KERN_INFO, ha,483 "scsi%ld: %s: MEDIA TYPE"484 " - %s\n", ha->host_no,485 __func__, (ha->addl_fw_state &486 FW_ADDSTATE_OPTICAL_MEDIA)487 != 0 ? "OPTICAL" : "COPPER"));488 DEBUG2(ql4_printk(KERN_INFO, ha,489 "scsi%ld: %s: DHCPv4 STATE"490 " Enabled %s\n", ha->host_no,491 __func__, (ha->addl_fw_state &492 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?493 "YES" : "NO"));494 DEBUG2(ql4_printk(KERN_INFO, ha,495 "scsi%ld: %s: LINK %s\n",496 ha->host_no, __func__,497 (ha->addl_fw_state &498 FW_ADDSTATE_LINK_UP) != 0 ?499 "UP" : "DOWN"));500 DEBUG2(ql4_printk(KERN_INFO, ha,501 "scsi%ld: %s: iSNS Service "502 "Started %s\n",503 ha->host_no, __func__,504 (ha->addl_fw_state &505 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?506 "YES" : "NO"));507 508 ready = 1;509 break;510 }511 }512 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "513 "seconds expired= %d\n", ha->host_no, __func__,514 ha->firmware_state, ha->addl_fw_state,515 timeout_count));516 if (is_qla4032(ha) &&517 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&518 (timeout_count < ADAPTER_INIT_TOV - 5)) {519 break;520 }521 522 msleep(1000);523 } /* end of for */524 525 if (timeout_count <= 0)526 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",527 ha->host_no, __func__));528 529 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {530 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "531 "it's waiting to configure an IP address\n",532 ha->host_no, __func__));533 ready = 1;534 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {535 DEBUG2(printk("scsi%ld: %s: FW initialized, but "536 "auto-discovery still in process\n",537 ha->host_no, __func__));538 ready = 1;539 }540 541 return ready;542}543 544/**545 * qla4xxx_init_firmware - initializes the firmware.546 * @ha: pointer to host adapter structure.547 *548 **/549static int qla4xxx_init_firmware(struct scsi_qla_host *ha)550{551 int status = QLA_ERROR;552 553 if (is_aer_supported(ha) &&554 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))555 return status;556 557 /* For 82xx, stop firmware before initializing because if BIOS558 * has previously initialized firmware, then driver's initialize559 * firmware will fail. */560 if (is_qla80XX(ha))561 qla4_8xxx_stop_firmware(ha);562 563 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");564 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {565 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "566 "control block\n", ha->host_no, __func__));567 return status;568 }569 570 if (!qla4xxx_fw_ready(ha))571 return status;572 573 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))574 qla4xxx_alloc_fw_dump(ha);575 576 return qla4xxx_get_firmware_status(ha);577}578 579static void qla4xxx_set_model_info(struct scsi_qla_host *ha)580{581 uint16_t board_id_string[8];582 int i;583 int size = sizeof(ha->nvram->isp4022.boardIdStr);584 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;585 586 for (i = 0; i < (size / 2) ; i++) {587 board_id_string[i] = rd_nvram_word(ha, offset);588 offset += 1;589 }590 591 memcpy(ha->model_name, board_id_string, size);592}593 594static int qla4xxx_config_nvram(struct scsi_qla_host *ha)595{596 unsigned long flags;597 union external_hw_config_reg extHwConfig;598 599 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,600 __func__));601 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)602 return QLA_ERROR;603 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {604 ql4xxx_unlock_flash(ha);605 return QLA_ERROR;606 }607 608 /* Get EEPRom Parameters from NVRAM and validate */609 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");610 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {611 spin_lock_irqsave(&ha->hardware_lock, flags);612 extHwConfig.Asuint32_t =613 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));614 spin_unlock_irqrestore(&ha->hardware_lock, flags);615 } else {616 ql4_printk(KERN_WARNING, ha,617 "scsi%ld: %s: EEProm checksum invalid. "618 "Please update your EEPROM\n", ha->host_no,619 __func__);620 621 /* Attempt to set defaults */622 if (is_qla4010(ha))623 extHwConfig.Asuint32_t = 0x1912;624 else if (is_qla4022(ha) | is_qla4032(ha))625 extHwConfig.Asuint32_t = 0x0023;626 else627 return QLA_ERROR;628 }629 630 if (is_qla4022(ha) || is_qla4032(ha))631 qla4xxx_set_model_info(ha);632 else633 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 context652 */653void qla4_8xxx_pci_config(struct scsi_qla_host *ha)654{655 pci_set_master(ha->pdev);656}657 658void qla4xxx_pci_config(struct scsi_qla_host *ha)659{660 uint16_t w;661 int status;662 663 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");664 665 pci_set_master(ha->pdev);666 status = pci_set_mwi(ha->pdev);667 if (status)668 ql4_printk(KERN_WARNING, ha, "Failed to set MWI\n");669 670 /*671 * We want to respect framework's setting of PCI configuration space672 * command register and also want to make sure that all bits of673 * interest to us are properly set in command register.674 */675 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);676 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;677 w &= ~PCI_COMMAND_INTX_DISABLE;678 pci_write_config_word(ha->pdev, PCI_COMMAND, w);679}680 681static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)682{683 int status = QLA_ERROR;684 unsigned long max_wait_time;685 unsigned long flags;686 uint32_t mbox_status;687 688 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");689 690 /*691 * Start firmware from flash ROM692 *693 * WORKAROUND: Stuff a non-constant value that the firmware can694 * use as a seed for a random number generator in MB7 prior to695 * setting BOOT_ENABLE. Fixes problem where the TCP696 * connections use the same TCP ports after each reboot,697 * causing some connections to not get re-established.698 */699 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",700 ha->host_no, __func__));701 702 spin_lock_irqsave(&ha->hardware_lock, flags);703 writel(jiffies, &ha->reg->mailbox[7]);704 if (is_qla4022(ha) | is_qla4032(ha))705 writel(set_rmask(NVR_WRITE_ENABLE),706 &ha->reg->u1.isp4022.nvram);707 708 writel(2, &ha->reg->mailbox[6]);709 readl(&ha->reg->mailbox[6]);710 711 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);712 readl(&ha->reg->ctrl_status);713 spin_unlock_irqrestore(&ha->hardware_lock, flags);714 715 /* Wait for firmware to come UP. */716 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "717 "boot firmware to complete...\n",718 ha->host_no, __func__, FIRMWARE_UP_TOV));719 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);720 do {721 uint32_t ctrl_status;722 723 spin_lock_irqsave(&ha->hardware_lock, flags);724 ctrl_status = readw(&ha->reg->ctrl_status);725 mbox_status = readw(&ha->reg->mailbox[0]);726 spin_unlock_irqrestore(&ha->hardware_lock, flags);727 728 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))729 break;730 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)731 break;732 733 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "734 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n",735 ha->host_no, __func__, ctrl_status, max_wait_time));736 737 msleep_interruptible(250);738 } while (!time_after_eq(jiffies, max_wait_time));739 740 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {741 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",742 ha->host_no, __func__));743 744 spin_lock_irqsave(&ha->hardware_lock, flags);745 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),746 &ha->reg->ctrl_status);747 readl(&ha->reg->ctrl_status);748 spin_unlock_irqrestore(&ha->hardware_lock, flags);749 750 status = QLA_SUCCESS;751 } else {752 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "753 "- mbox status 0x%x\n", ha->host_no, __func__,754 mbox_status);755 status = QLA_ERROR;756 }757 return status;758}759 760int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)761{762#define QL4_LOCK_DRVR_WAIT 60763#define QL4_LOCK_DRVR_SLEEP 1764 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 firmware785 * @ha: Pointer to host adapter structure.786 *787 * This routine performs the necessary steps to start the firmware for788 * the QLA4010 adapter.789 **/790int qla4xxx_start_firmware(struct scsi_qla_host *ha)791{792 unsigned long flags = 0;793 uint32_t mbox_status;794 int status = QLA_ERROR;795 int soft_reset = 1;796 int config_chip = 0;797 798 if (is_qla4022(ha) | is_qla4032(ha))799 ql4xxx_set_mac_number(ha);800 801 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)802 return QLA_ERROR;803 804 spin_lock_irqsave(&ha->hardware_lock, flags);805 806 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,807 __func__, readw(isp_port_ctrl(ha))));808 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,809 __func__, readw(isp_port_status(ha))));810 811 /* Is Hardware already initialized? */812 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {813 DEBUG(printk("scsi%ld: %s: Hardware has already been "814 "initialized\n", ha->host_no, __func__));815 816 /* Receive firmware boot acknowledgement */817 mbox_status = readw(&ha->reg->mailbox[0]);818 819 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "820 "0x%x\n", ha->host_no, __func__, mbox_status));821 822 /* Is firmware already booted? */823 if (mbox_status == 0) {824 /* F/W not running, must be config by net driver */825 config_chip = 1;826 soft_reset = 0;827 } else {828 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),829 &ha->reg->ctrl_status);830 readl(&ha->reg->ctrl_status);831 writel(set_rmask(CSR_SCSI_COMPLETION_INTR),832 &ha->reg->ctrl_status);833 readl(&ha->reg->ctrl_status);834 spin_unlock_irqrestore(&ha->hardware_lock, flags);835 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {836 DEBUG2(printk("scsi%ld: %s: Get firmware "837 "state -- state = 0x%x\n",838 ha->host_no,839 __func__, ha->firmware_state));840 /* F/W is running */841 if (ha->firmware_state &842 FW_STATE_CONFIG_WAIT) {843 DEBUG2(printk("scsi%ld: %s: Firmware "844 "in known state -- "845 "config and "846 "boot, state = 0x%x\n",847 ha->host_no, __func__,848 ha->firmware_state));849 config_chip = 1;850 soft_reset = 0;851 }852 } else {853 DEBUG2(printk("scsi%ld: %s: Firmware in "854 "unknown state -- resetting,"855 " state = "856 "0x%x\n", ha->host_no, __func__,857 ha->firmware_state));858 }859 spin_lock_irqsave(&ha->hardware_lock, flags);860 }861 } else {862 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "863 "started - resetting\n", ha->host_no, __func__));864 }865 spin_unlock_irqrestore(&ha->hardware_lock, flags);866 867 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",868 ha->host_no, __func__, soft_reset, config_chip));869 if (soft_reset) {870 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,871 __func__));872 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr873 * 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 firmware906 * @ha: pointer to adapter structure907 *908 * Since firmware is not running in autoconnect mode the DDB indices should909 * be freed so that when login happens from user space there are free DDB910 * indices available.911 **/912void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)913{914 int max_ddbs;915 int ret;916 uint32_t idx = 0, next_idx = 0;917 uint32_t state = 0, conn_err = 0;918 919 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :920 MAX_DEV_DB_ENTRIES;921 922 for (idx = 0; idx < max_ddbs; idx = next_idx) {923 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,924 &next_idx, &state, &conn_err,925 NULL, NULL);926 if (ret == QLA_ERROR) {927 next_idx++;928 continue;929 }930 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||931 state == DDB_DS_SESSION_FAILED) {932 DEBUG2(ql4_printk(KERN_INFO, ha,933 "Freeing DDB index = 0x%x\n", idx));934 ret = qla4xxx_clear_ddb_entry(ha, idx);935 if (ret == QLA_ERROR)936 ql4_printk(KERN_ERR, ha,937 "Unable to clear DDB index = "938 "0x%x\n", idx);939 }940 if (next_idx == 0)941 break;942 }943}944 945/**946 * qla4xxx_initialize_adapter - initiailizes hba947 * @ha: Pointer to host adapter structure.948 * @is_reset: Is this init path or reset path949 *950 * This routine parforms all of the steps necessary to initialize the adapter.951 *952 **/953int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)954{955 int status = QLA_ERROR;956 957 ha->eeprom_cmd_data = 0;958 959 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");960 ha->isp_ops->pci_config(ha);961 962 ha->isp_ops->disable_intrs(ha);963 964 /* Initialize the Host adapter request/response queues and firmware */965 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)966 goto exit_init_hba;967 968 /*969 * For ISP83XX, mailbox and IOCB interrupts are enabled separately.970 * Mailbox interrupts must be enabled prior to issuing any mailbox971 * command in order to prevent the possibility of losing interrupts972 * while switching from polling to interrupt mode. IOCB interrupts are973 * enabled via isp_ops->enable_intrs.974 */975 if (is_qla8032(ha) || is_qla8042(ha))976 qla4_83xx_enable_mbox_intrs(ha);977 978 if (qla4xxx_about_firmware(ha) == QLA_ERROR)979 goto exit_init_hba;980 981 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)982 goto exit_init_hba;983 984 qla4xxx_init_local_data(ha);985 986 status = qla4xxx_init_firmware(ha);987 if (status == QLA_ERROR)988 goto exit_init_hba;989 990 if (is_reset == RESET_ADAPTER)991 qla4xxx_build_ddb_list(ha, is_reset);992 993 set_bit(AF_ONLINE, &ha->flags);994 995exit_init_hba:996 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,997 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));998 return status;999}1000 1001int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,1002 struct ddb_entry *ddb_entry, uint32_t state)1003{1004 uint32_t old_fw_ddb_device_state;1005 int status = QLA_ERROR;1006 1007 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;1008 DEBUG2(ql4_printk(KERN_INFO, ha,1009 "%s: DDB - old state = 0x%x, new state = 0x%x for "1010 "index [%d]\n", __func__,1011 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));1012 1013 ddb_entry->fw_ddb_device_state = state;1014 1015 switch (old_fw_ddb_device_state) {1016 case DDB_DS_LOGIN_IN_PROCESS:1017 switch (state) {1018 case DDB_DS_SESSION_ACTIVE:1019 case DDB_DS_DISCOVERY:1020 qla4xxx_update_session_conn_param(ha, ddb_entry);1021 ddb_entry->unblock_sess(ddb_entry->sess);1022 status = QLA_SUCCESS;1023 break;1024 case DDB_DS_SESSION_FAILED:1025 case DDB_DS_NO_CONNECTION_ACTIVE:1026 iscsi_conn_login_event(ddb_entry->conn,1027 ISCSI_CONN_STATE_FREE);1028 status = QLA_SUCCESS;1029 break;1030 }1031 break;1032 case DDB_DS_SESSION_ACTIVE:1033 case DDB_DS_DISCOVERY:1034 switch (state) {1035 case DDB_DS_SESSION_FAILED:1036 /*1037 * iscsi_session failure will cause userspace to1038 * stop the connection which in turn would block the1039 * iscsi_session and start relogin1040 */1041 iscsi_session_failure(ddb_entry->sess->dd_data,1042 ISCSI_ERR_CONN_FAILED);1043 status = QLA_SUCCESS;1044 break;1045 case DDB_DS_NO_CONNECTION_ACTIVE:1046 clear_bit(fw_ddb_index, ha->ddb_idx_map);1047 status = QLA_SUCCESS;1048 break;1049 }1050 break;1051 case DDB_DS_SESSION_FAILED:1052 switch (state) {1053 case DDB_DS_SESSION_ACTIVE:1054 case DDB_DS_DISCOVERY:1055 ddb_entry->unblock_sess(ddb_entry->sess);1056 qla4xxx_update_session_conn_param(ha, ddb_entry);1057 status = QLA_SUCCESS;1058 break;1059 case DDB_DS_SESSION_FAILED:1060 iscsi_session_failure(ddb_entry->sess->dd_data,1061 ISCSI_ERR_CONN_FAILED);1062 status = QLA_SUCCESS;1063 break;1064 }1065 break;1066 default:1067 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",1068 __func__));1069 break;1070 }1071 return status;1072}1073 1074void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)1075{1076 /*1077 * This triggers a relogin. After the relogin_timer1078 * expires, the relogin gets scheduled. We must wait a1079 * minimum amount of time since receiving an 0x8014 AEN1080 * with failed device_state or a logout response before1081 * 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 fail1086 * set_ddb() mbx cmd with 0x4005 since it still1087 * counting down its time2wait.1088 */1089 atomic_set(&ddb_entry->relogin_timer, 0);1090 atomic_set(&ddb_entry->retry_relogin_timer,1091 ddb_entry->default_time2wait + 4);1092 1093}1094 1095int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,1096 struct ddb_entry *ddb_entry, uint32_t state)1097{1098 uint32_t old_fw_ddb_device_state;1099 int status = QLA_ERROR;1100 1101 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;1102 DEBUG2(ql4_printk(KERN_INFO, ha,1103 "%s: DDB - old state = 0x%x, new state = 0x%x for "1104 "index [%d]\n", __func__,1105 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));1106 1107 ddb_entry->fw_ddb_device_state = state;1108 1109 switch (old_fw_ddb_device_state) {1110 case DDB_DS_LOGIN_IN_PROCESS:1111 case DDB_DS_NO_CONNECTION_ACTIVE:1112 switch (state) {1113 case DDB_DS_SESSION_ACTIVE:1114 ddb_entry->unblock_sess(ddb_entry->sess);1115 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);1116 status = QLA_SUCCESS;1117 break;1118 case DDB_DS_SESSION_FAILED:1119 iscsi_block_session(ddb_entry->sess);1120 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))1121 qla4xxx_arm_relogin_timer(ddb_entry);1122 status = QLA_SUCCESS;1123 break;1124 }1125 break;1126 case DDB_DS_SESSION_ACTIVE:1127 switch (state) {1128 case DDB_DS_SESSION_FAILED:1129 iscsi_block_session(ddb_entry->sess);1130 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))1131 qla4xxx_arm_relogin_timer(ddb_entry);1132 status = QLA_SUCCESS;1133 break;1134 }1135 break;1136 case DDB_DS_SESSION_FAILED:1137 switch (state) {1138 case DDB_DS_SESSION_ACTIVE:1139 ddb_entry->unblock_sess(ddb_entry->sess);1140 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);1141 status = QLA_SUCCESS;1142 break;1143 case DDB_DS_SESSION_FAILED:1144 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))1145 qla4xxx_arm_relogin_timer(ddb_entry);1146 status = QLA_SUCCESS;1147 break;1148 }1149 break;1150 default:1151 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",1152 __func__));1153 break;1154 }1155 return status;1156}1157 1158/**1159 * qla4xxx_process_ddb_changed - process ddb state change1160 * @ha: Pointer to host adapter structure.1161 * @fw_ddb_index: Firmware's device database index1162 * @state: Device state1163 * @conn_err: Unused1164 *1165 * This routine processes a Decive Database Changed AEN Event.1166 **/1167int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,1168 uint32_t fw_ddb_index,1169 uint32_t state, uint32_t conn_err)1170{1171 struct ddb_entry *ddb_entry;1172 1173 /* check for out of range index */1174 if (fw_ddb_index >= MAX_DDB_ENTRIES)1175 goto exit_ddb_event;1176 1177 /* Get the corresponging ddb entry */1178 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);1179 /* Device does not currently exist in our database. */1180 if (ddb_entry == NULL) {1181 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",1182 __func__, fw_ddb_index);1183 1184 if (state == DDB_DS_NO_CONNECTION_ACTIVE)1185 clear_bit(fw_ddb_index, ha->ddb_idx_map);1186 1187 goto exit_ddb_event;1188 }1189 1190 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);1191 1192exit_ddb_event:1193 return QLA_ERROR;1194}1195 1196/**1197 * qla4xxx_login_flash_ddb - Login to target (DDB)1198 * @cls_session: Pointer to the session to login1199 *1200 * This routine logins to the target.1201 * Issues setddb and conn open mbx1202 **/1203void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)1204{1205 struct iscsi_session *sess;1206 struct ddb_entry *ddb_entry;1207 struct scsi_qla_host *ha;1208 struct dev_db_entry *fw_ddb_entry = NULL;1209 dma_addr_t fw_ddb_dma;1210 uint32_t mbx_sts = 0;1211 int ret;1212 1213 sess = cls_session->dd_data;1214 ddb_entry = sess->dd_data;1215 ha = ddb_entry->ha;1216 1217 if (!test_bit(AF_LINK_UP, &ha->flags))1218 return;1219 1220 if (ddb_entry->ddb_type != FLASH_DDB) {1221 DEBUG2(ql4_printk(KERN_INFO, ha,1222 "Skipping login to non FLASH DB"));1223 goto exit_login;1224 }1225 1226 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,1227 &fw_ddb_dma);1228 if (fw_ddb_entry == NULL) {1229 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));1230 goto exit_login;1231 }1232 1233 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {1234 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);1235 if (ret == QLA_ERROR)1236 goto exit_login;1237 1238 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;1239 ha->tot_ddbs++;1240 }1241 1242 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,1243 sizeof(struct dev_db_entry));1244 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;1245 1246 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,1247 fw_ddb_dma, &mbx_sts);1248 if (ret == QLA_ERROR) {1249 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));1250 goto exit_login;1251 }1252 1253 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;1254 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);1255 if (ret == QLA_ERROR) {1256 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,1257 sess->targetname);1258 goto exit_login;1259 }1260 1261exit_login:1262 if (fw_ddb_entry)1263 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);1264}1265 1266