2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
5 * See LICENSE.qla4xxx for copyright and licensing details.
8 #include <scsi/iscsi_if.h>
12 #include "ql4_inline.h"
14 static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
20 /* Get the function number */
21 spin_lock_irqsave(&ha->hardware_lock, flags);
22 value = readw(&ha->reg->ctrl_status);
23 spin_unlock_irqrestore(&ha->hardware_lock, flags);
25 func_number = (uint8_t) ((value >> 4) & 0x30);
26 switch (value & ISP_CONTROL_FN_MASK) {
27 case ISP_CONTROL_FN0_SCSI:
30 case ISP_CONTROL_FN1_SCSI:
34 DEBUG2(printk("scsi%ld: %s: Invalid function number, "
35 "ispControlStatus = 0x%x\n", ha->host_no,
39 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
44 * qla4xxx_free_ddb - deallocate ddb
45 * @ha: pointer to host adapter structure.
46 * @ddb_entry: pointer to device database entry
48 * This routine marks a DDB entry INVALID
50 void qla4xxx_free_ddb(struct scsi_qla_host *ha,
51 struct ddb_entry *ddb_entry)
53 /* Remove device pointer from index mapping arrays */
54 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
55 (struct ddb_entry *) INVALID_ENTRY;
60 * qla4xxx_init_response_q_entries() - Initializes response queue entries.
63 * Beginning of request ring has initialization control block already built
64 * by nvram config routine.
66 static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)
71 pkt = (struct response *)ha->response_ptr;
72 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {
73 pkt->signature = RESPONSE_PROCESSED;
79 * qla4xxx_init_rings - initialize hw queues
80 * @ha: pointer to host adapter structure.
82 * This routine initializes the internal queues for the specified adapter.
83 * The QLA4010 requires us to restart the queues at index 0.
84 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
86 int qla4xxx_init_rings(struct scsi_qla_host *ha)
88 unsigned long flags = 0;
91 /* Initialize request queue. */
92 spin_lock_irqsave(&ha->hardware_lock, flags);
95 ha->request_ptr = &ha->request_ring[ha->request_in];
96 ha->req_q_count = REQUEST_QUEUE_DEPTH;
98 /* Initialize response queue. */
100 ha->response_out = 0;
101 ha->response_ptr = &ha->response_ring[ha->response_out];
103 if (is_qla8022(ha)) {
105 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out);
107 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in);
109 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out);
110 } else if (is_qla8032(ha) || is_qla8042(ha)) {
112 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in);
114 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in);
116 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out);
119 * Initialize DMA Shadow registers. The firmware is really
120 * supposed to take care of this, but on some uniprocessor
121 * systems, the shadow registers aren't cleared-- causing
122 * the interrupt_handler to think there are responses to be
123 * processed when there aren't.
125 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
126 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
129 writel(0, &ha->reg->req_q_in);
130 writel(0, &ha->reg->rsp_q_out);
131 readl(&ha->reg->rsp_q_out);
134 qla4xxx_init_response_q_entries(ha);
136 /* Initialize mailbox active array */
137 for (i = 0; i < MAX_MRB; i++)
138 ha->active_mrb_array[i] = NULL;
140 spin_unlock_irqrestore(&ha->hardware_lock, flags);
146 * qla4xxx_get_sys_info - validate adapter MAC address(es)
147 * @ha: pointer to host adapter structure.
150 int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
152 struct flash_sys_info *sys_info;
153 dma_addr_t sys_info_dma;
154 int status = QLA_ERROR;
156 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
157 &sys_info_dma, GFP_KERNEL);
158 if (sys_info == NULL) {
159 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
160 ha->host_no, __func__));
162 goto exit_get_sys_info_no_free;
165 /* Get flash sys info */
166 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
167 sizeof(*sys_info)) != QLA_SUCCESS) {
168 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
169 "failed\n", ha->host_no, __func__));
171 goto exit_get_sys_info;
174 /* Save M.A.C. address & serial_number */
175 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
176 min(sizeof(ha->my_mac),
177 sizeof(sys_info->physAddr[0].address)));
178 memcpy(ha->serial_number, &sys_info->acSerialNumber,
179 min(sizeof(ha->serial_number),
180 sizeof(sys_info->acSerialNumber)));
182 status = QLA_SUCCESS;
185 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
188 exit_get_sys_info_no_free:
193 * qla4xxx_init_local_data - initialize adapter specific local data
194 * @ha: pointer to host adapter structure.
197 static void qla4xxx_init_local_data(struct scsi_qla_host *ha)
199 /* Initialize aen queue */
200 ha->aen_q_count = MAX_AEN_ENTRIES;
204 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
206 uint8_t ipv4_wait = 0;
207 uint8_t ipv6_wait = 0;
208 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
210 /* If both IPv4 & IPv6 are enabled, possibly only one
211 * IP address may be acquired, so check to see if we
212 * need to wait for another */
213 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
214 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
215 ((ha->addl_fw_state &
216 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
219 if (((ha->ip_config.ipv6_addl_options &
220 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
221 ((ha->ip_config.ipv6_link_local_state ==
222 IP_ADDRSTATE_ACQUIRING) ||
223 (ha->ip_config.ipv6_addr0_state ==
224 IP_ADDRSTATE_ACQUIRING) ||
225 (ha->ip_config.ipv6_addr1_state ==
226 IP_ADDRSTATE_ACQUIRING))) {
230 if ((ha->ip_config.ipv6_link_local_state ==
231 IP_ADDRSTATE_PREFERRED) ||
232 (ha->ip_config.ipv6_addr0_state ==
233 IP_ADDRSTATE_PREFERRED) ||
234 (ha->ip_config.ipv6_addr1_state ==
235 IP_ADDRSTATE_PREFERRED)) {
236 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
237 "Preferred IP configured."
238 " Don't wait!\n", ha->host_no,
242 if (memcmp(&ha->ip_config.ipv6_default_router_addr,
243 ip_address, IPv6_ADDR_LEN) == 0) {
244 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
245 "No Router configured. "
246 "Don't wait!\n", ha->host_no,
250 if ((ha->ip_config.ipv6_default_router_state ==
251 IPV6_RTRSTATE_MANUAL) &&
252 (ha->ip_config.ipv6_link_local_state ==
253 IP_ADDRSTATE_TENTATIVE) &&
254 (memcmp(&ha->ip_config.ipv6_link_local_addr,
255 &ha->ip_config.ipv6_default_router_addr, 4) ==
257 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
258 "IP configured. Don't wait!\n",
259 ha->host_no, __func__));
263 if (ipv4_wait || ipv6_wait) {
264 DEBUG2(printk("scsi%ld: %s: Wait for additional "
265 "IP(s) \"", ha->host_no, __func__));
267 DEBUG2(printk("IPv4 "));
268 if (ha->ip_config.ipv6_link_local_state ==
269 IP_ADDRSTATE_ACQUIRING)
270 DEBUG2(printk("IPv6LinkLocal "));
271 if (ha->ip_config.ipv6_addr0_state ==
272 IP_ADDRSTATE_ACQUIRING)
273 DEBUG2(printk("IPv6Addr0 "));
274 if (ha->ip_config.ipv6_addr1_state ==
275 IP_ADDRSTATE_ACQUIRING)
276 DEBUG2(printk("IPv6Addr1 "));
277 DEBUG2(printk("\"\n"));
281 return ipv4_wait|ipv6_wait;
284 static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha,
285 struct qla4_8xxx_minidump_template_hdr *md_hdr)
287 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET :
288 QLA83XX_TEMPLATE_CAP_OFFSET;
290 uint32_t *cap_offset;
292 cap_offset = (uint32_t *)((char *)md_hdr + offset);
294 if (!(le32_to_cpu(*cap_offset) & BIT_0)) {
295 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n",
304 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
305 * @ha: pointer to host adapter structure.
307 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
310 uint32_t capture_debug_level;
311 int hdr_entry_bit, k;
313 dma_addr_t md_tmp_dma;
314 struct qla4_8xxx_minidump_template_hdr *md_hdr;
318 ql4_printk(KERN_WARNING, ha,
319 "Firmware dump previously allocated.\n");
323 status = qla4xxx_req_template_size(ha);
324 if (status != QLA_SUCCESS) {
325 ql4_printk(KERN_INFO, ha,
326 "scsi%ld: Failed to get template size\n",
331 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
333 /* Allocate memory for saving the template */
334 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
335 &md_tmp_dma, GFP_KERNEL);
337 ql4_printk(KERN_INFO, ha,
338 "scsi%ld: Failed to allocate DMA memory\n",
343 /* Request template */
344 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
345 if (status != QLA_SUCCESS) {
346 ql4_printk(KERN_INFO, ha,
347 "scsi%ld: Failed to get minidump template\n",
352 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
354 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr);
356 capture_debug_level = md_hdr->capture_debug_level;
358 /* Get capture mask based on module loadtime setting. */
359 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) ||
360 (ql4xmdcapmask == 0xFF && dma_capable)) {
361 ha->fw_dump_capture_mask = ql4xmdcapmask;
363 if (ql4xmdcapmask == 0xFF)
364 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n");
365 ha->fw_dump_capture_mask = capture_debug_level;
368 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
370 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
371 md_hdr->num_of_entries));
372 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
373 ha->fw_dump_tmplt_size));
374 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
375 ha->fw_dump_capture_mask));
377 /* Calculate fw_dump_size */
378 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
379 hdr_entry_bit <<= 1, k++) {
380 if (hdr_entry_bit & ha->fw_dump_capture_mask)
381 ha->fw_dump_size += md_hdr->capture_size_array[k];
384 /* Total firmware dump size including command header */
385 ha->fw_dump_size += ha->fw_dump_tmplt_size;
386 ha->fw_dump = vmalloc(ha->fw_dump_size);
390 DEBUG2(ql4_printk(KERN_INFO, ha,
391 "Minidump Template Size = 0x%x KB\n",
392 ha->fw_dump_tmplt_size));
393 DEBUG2(ql4_printk(KERN_INFO, ha,
394 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
396 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
397 ha->fw_dump_tmplt_hdr = ha->fw_dump;
400 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
404 static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
406 uint32_t timeout_count;
409 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
410 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
412 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
413 qla4xxx_get_dhcp_ip_address(ha);
415 /* Get firmware state. */
416 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
417 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
418 "state\n", ha->host_no, __func__));
422 if (ha->firmware_state & FW_STATE_ERROR) {
423 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
424 " occurred\n", ha->host_no, __func__));
428 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
430 * The firmware has not yet been issued an Initialize
431 * Firmware command, so issue it now.
433 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
436 /* Go back and test for ready state - no wait. */
440 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
441 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
442 "AUTOCONNECT in progress\n",
443 ha->host_no, __func__));
446 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
447 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
449 ha->host_no, __func__));
451 * Check for link state after 15 secs and if link is
452 * still DOWN then, cable is unplugged. Ignore "DHCP
453 * in Progress/CONFIGURING IP" bit to check if firmware
454 * is in ready state or not after 15 secs.
455 * This is applicable for both 2.x & 3.x firmware
457 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
458 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
459 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
460 " LINK UP (Cable plugged)\n",
461 ha->host_no, __func__));
462 } else if (ha->firmware_state &
463 (FW_STATE_CONFIGURING_IP |
465 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
466 "LINK DOWN (Cable unplugged)\n",
467 ha->host_no, __func__));
468 ha->firmware_state = FW_STATE_READY;
473 if (ha->firmware_state == FW_STATE_READY) {
474 /* If DHCP IP Addr is available, retrieve it now. */
475 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
477 qla4xxx_get_dhcp_ip_address(ha);
479 if (!qla4xxx_wait_for_ip_config(ha) ||
480 timeout_count == 1) {
481 DEBUG2(ql4_printk(KERN_INFO, ha,
482 "Firmware Ready..\n"));
483 /* The firmware is ready to process SCSI
485 DEBUG2(ql4_printk(KERN_INFO, ha,
486 "scsi%ld: %s: MEDIA TYPE"
487 " - %s\n", ha->host_no,
488 __func__, (ha->addl_fw_state &
489 FW_ADDSTATE_OPTICAL_MEDIA)
490 != 0 ? "OPTICAL" : "COPPER"));
491 DEBUG2(ql4_printk(KERN_INFO, ha,
492 "scsi%ld: %s: DHCPv4 STATE"
493 " Enabled %s\n", ha->host_no,
494 __func__, (ha->addl_fw_state &
495 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
497 DEBUG2(ql4_printk(KERN_INFO, ha,
498 "scsi%ld: %s: LINK %s\n",
499 ha->host_no, __func__,
501 FW_ADDSTATE_LINK_UP) != 0 ?
503 DEBUG2(ql4_printk(KERN_INFO, ha,
504 "scsi%ld: %s: iSNS Service "
506 ha->host_no, __func__,
508 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
515 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
516 "seconds expired= %d\n", ha->host_no, __func__,
517 ha->firmware_state, ha->addl_fw_state,
519 if (is_qla4032(ha) &&
520 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
521 (timeout_count < ADAPTER_INIT_TOV - 5)) {
528 if (timeout_count <= 0)
529 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
530 ha->host_no, __func__));
532 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
533 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
534 "it's waiting to configure an IP address\n",
535 ha->host_no, __func__));
537 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
538 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
539 "auto-discovery still in process\n",
540 ha->host_no, __func__));
548 * qla4xxx_init_firmware - initializes the firmware.
549 * @ha: pointer to host adapter structure.
552 static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
554 int status = QLA_ERROR;
556 if (is_aer_supported(ha) &&
557 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
560 /* For 82xx, stop firmware before initializing because if BIOS
561 * has previously initialized firmware, then driver's initialize
562 * firmware will fail. */
564 qla4_8xxx_stop_firmware(ha);
566 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
567 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
568 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
569 "control block\n", ha->host_no, __func__));
573 if (!qla4xxx_fw_ready(ha))
576 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
577 qla4xxx_alloc_fw_dump(ha);
579 return qla4xxx_get_firmware_status(ha);
582 static void qla4xxx_set_model_info(struct scsi_qla_host *ha)
584 uint16_t board_id_string[8];
586 int size = sizeof(ha->nvram->isp4022.boardIdStr);
587 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;
589 for (i = 0; i < (size / 2) ; i++) {
590 board_id_string[i] = rd_nvram_word(ha, offset);
594 memcpy(ha->model_name, board_id_string, size);
597 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
600 union external_hw_config_reg extHwConfig;
602 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
604 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
606 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
607 ql4xxx_unlock_flash(ha);
611 /* Get EEPRom Parameters from NVRAM and validate */
612 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
613 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
614 spin_lock_irqsave(&ha->hardware_lock, flags);
615 extHwConfig.Asuint32_t =
616 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
617 spin_unlock_irqrestore(&ha->hardware_lock, flags);
619 ql4_printk(KERN_WARNING, ha,
620 "scsi%ld: %s: EEProm checksum invalid. "
621 "Please update your EEPROM\n", ha->host_no,
624 /* Attempt to set defaults */
626 extHwConfig.Asuint32_t = 0x1912;
627 else if (is_qla4022(ha) | is_qla4032(ha))
628 extHwConfig.Asuint32_t = 0x0023;
633 if (is_qla4022(ha) || is_qla4032(ha))
634 qla4xxx_set_model_info(ha);
636 strcpy(ha->model_name, "QLA4010");
638 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
639 ha->host_no, __func__, extHwConfig.Asuint32_t));
641 spin_lock_irqsave(&ha->hardware_lock, flags);
642 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
643 readl(isp_ext_hw_conf(ha));
644 spin_unlock_irqrestore(&ha->hardware_lock, flags);
646 ql4xxx_unlock_nvram(ha);
647 ql4xxx_unlock_flash(ha);
653 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
656 void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
658 pci_set_master(ha->pdev);
661 void qla4xxx_pci_config(struct scsi_qla_host *ha)
666 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
668 pci_set_master(ha->pdev);
669 status = pci_set_mwi(ha->pdev);
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.
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);
681 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
683 int status = QLA_ERROR;
684 unsigned long max_wait_time;
686 uint32_t mbox_status;
688 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
691 * Start firmware from flash ROM
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.
699 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
700 ha->host_no, __func__));
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);
708 writel(2, &ha->reg->mailbox[6]);
709 readl(&ha->reg->mailbox[6]);
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);
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);
721 uint32_t ctrl_status;
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);
728 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
730 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
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));
737 msleep_interruptible(250);
738 } while (!time_after_eq(jiffies, max_wait_time));
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__));
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);
750 status = QLA_SUCCESS;
752 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
753 "- mbox status 0x%x\n", ha->host_no, __func__,
760 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
762 #define QL4_LOCK_DRVR_WAIT 60
763 #define QL4_LOCK_DRVR_SLEEP 1
765 int drvr_wait = QL4_LOCK_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",
772 __func__, drvr_wait));
773 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
775 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
776 "acquired\n", a->host_no, __func__));
784 * qla4xxx_start_firmware - starts qla4xxx firmware
785 * @ha: Pointer to host adapter structure.
787 * This routine performs the necessary steps to start the firmware for
788 * the QLA4010 adapter.
790 int qla4xxx_start_firmware(struct scsi_qla_host *ha)
792 unsigned long flags = 0;
793 uint32_t mbox_status;
794 int status = QLA_ERROR;
798 if (is_qla4022(ha) | is_qla4032(ha))
799 ql4xxx_set_mac_number(ha);
801 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
804 spin_lock_irqsave(&ha->hardware_lock, flags);
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))));
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__));
816 /* Receive firmware boot acknowledgement */
817 mbox_status = readw(&ha->reg->mailbox[0]);
819 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
820 "0x%x\n", ha->host_no, __func__, mbox_status));
822 /* Is firmware already booted? */
823 if (mbox_status == 0) {
824 /* F/W not running, must be config by net driver */
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",
839 __func__, ha->firmware_state));
841 if (ha->firmware_state &
842 FW_STATE_CONFIG_WAIT) {
843 DEBUG2(printk("scsi%ld: %s: Firmware "
846 "boot, state = 0x%x\n",
847 ha->host_no, __func__,
848 ha->firmware_state));
853 DEBUG2(printk("scsi%ld: %s: Firmware in "
854 "unknown state -- resetting,"
856 "0x%x\n", ha->host_no, __func__,
857 ha->firmware_state));
859 spin_lock_irqsave(&ha->hardware_lock, flags);
862 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
863 "started - resetting\n", ha->host_no, __func__));
865 spin_unlock_irqrestore(&ha->hardware_lock, flags);
867 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
868 ha->host_no, __func__, soft_reset, config_chip));
870 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
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);
882 /* Reset clears the semaphore, so acquire again */
883 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
888 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
889 status = qla4xxx_start_firmware_from_flash(ha);
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);
897 qla4xxx_init_rings(ha);
899 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
900 ha->host_no, __func__));
905 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware
906 * @ha: pointer to adapter structure
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
912 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
916 uint32_t idx = 0, next_idx = 0;
917 uint32_t state = 0, conn_err = 0;
919 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
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,
926 if (ret == QLA_ERROR) {
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 = "
946 * qla4xxx_initialize_adapter - initiailizes hba
947 * @ha: Pointer to host adapter structure.
949 * This routine parforms all of the steps necessary to initialize the adapter.
952 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
954 int status = QLA_ERROR;
956 ha->eeprom_cmd_data = 0;
958 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
959 ha->isp_ops->pci_config(ha);
961 ha->isp_ops->disable_intrs(ha);
963 /* Initialize the Host adapter request/response queues and firmware */
964 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
968 * For ISP83XX, mailbox and IOCB interrupts are enabled separately.
969 * Mailbox interrupts must be enabled prior to issuing any mailbox
970 * command in order to prevent the possibility of losing interrupts
971 * while switching from polling to interrupt mode. IOCB interrupts are
972 * enabled via isp_ops->enable_intrs.
974 if (is_qla8032(ha) || is_qla8042(ha))
975 qla4_83xx_enable_mbox_intrs(ha);
977 if (qla4xxx_about_firmware(ha) == QLA_ERROR)
980 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
983 qla4xxx_init_local_data(ha);
985 status = qla4xxx_init_firmware(ha);
986 if (status == QLA_ERROR)
989 if (is_reset == RESET_ADAPTER)
990 qla4xxx_build_ddb_list(ha, is_reset);
992 set_bit(AF_ONLINE, &ha->flags);
995 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
996 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
1000 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1001 struct ddb_entry *ddb_entry, uint32_t state)
1003 uint32_t old_fw_ddb_device_state;
1004 int status = QLA_ERROR;
1006 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1007 DEBUG2(ql4_printk(KERN_INFO, ha,
1008 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1009 "index [%d]\n", __func__,
1010 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1012 ddb_entry->fw_ddb_device_state = state;
1014 switch (old_fw_ddb_device_state) {
1015 case DDB_DS_LOGIN_IN_PROCESS:
1017 case DDB_DS_SESSION_ACTIVE:
1018 case DDB_DS_DISCOVERY:
1019 qla4xxx_update_session_conn_param(ha, ddb_entry);
1020 ddb_entry->unblock_sess(ddb_entry->sess);
1021 status = QLA_SUCCESS;
1023 case DDB_DS_SESSION_FAILED:
1024 case DDB_DS_NO_CONNECTION_ACTIVE:
1025 iscsi_conn_login_event(ddb_entry->conn,
1026 ISCSI_CONN_STATE_FREE);
1027 status = QLA_SUCCESS;
1031 case DDB_DS_SESSION_ACTIVE:
1032 case DDB_DS_DISCOVERY:
1034 case DDB_DS_SESSION_FAILED:
1036 * iscsi_session failure will cause userspace to
1037 * stop the connection which in turn would block the
1038 * iscsi_session and start relogin
1040 iscsi_session_failure(ddb_entry->sess->dd_data,
1041 ISCSI_ERR_CONN_FAILED);
1042 status = QLA_SUCCESS;
1044 case DDB_DS_NO_CONNECTION_ACTIVE:
1045 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1046 status = QLA_SUCCESS;
1050 case DDB_DS_SESSION_FAILED:
1052 case DDB_DS_SESSION_ACTIVE:
1053 case DDB_DS_DISCOVERY:
1054 ddb_entry->unblock_sess(ddb_entry->sess);
1055 qla4xxx_update_session_conn_param(ha, ddb_entry);
1056 status = QLA_SUCCESS;
1058 case DDB_DS_SESSION_FAILED:
1059 iscsi_session_failure(ddb_entry->sess->dd_data,
1060 ISCSI_ERR_CONN_FAILED);
1061 status = QLA_SUCCESS;
1066 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1073 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
1076 * This triggers a relogin. After the relogin_timer
1077 * expires, the relogin gets scheduled. We must wait a
1078 * minimum amount of time since receiving an 0x8014 AEN
1079 * with failed device_state or a logout response before
1080 * we can issue another relogin.
1082 * Firmware pads this timeout: (time2wait +1).
1083 * Driver retry to login should be longer than F/W.
1084 * Otherwise F/W will fail
1085 * set_ddb() mbx cmd with 0x4005 since it still
1086 * counting down its time2wait.
1088 atomic_set(&ddb_entry->relogin_timer, 0);
1089 atomic_set(&ddb_entry->retry_relogin_timer,
1090 ddb_entry->default_time2wait + 4);
1094 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1095 struct ddb_entry *ddb_entry, uint32_t state)
1097 uint32_t old_fw_ddb_device_state;
1098 int status = QLA_ERROR;
1100 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1101 DEBUG2(ql4_printk(KERN_INFO, ha,
1102 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1103 "index [%d]\n", __func__,
1104 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1106 ddb_entry->fw_ddb_device_state = state;
1108 switch (old_fw_ddb_device_state) {
1109 case DDB_DS_LOGIN_IN_PROCESS:
1110 case DDB_DS_NO_CONNECTION_ACTIVE:
1112 case DDB_DS_SESSION_ACTIVE:
1113 ddb_entry->unblock_sess(ddb_entry->sess);
1114 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1115 status = QLA_SUCCESS;
1117 case DDB_DS_SESSION_FAILED:
1118 iscsi_block_session(ddb_entry->sess);
1119 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1120 qla4xxx_arm_relogin_timer(ddb_entry);
1121 status = QLA_SUCCESS;
1125 case DDB_DS_SESSION_ACTIVE:
1127 case DDB_DS_SESSION_FAILED:
1128 iscsi_block_session(ddb_entry->sess);
1129 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1130 qla4xxx_arm_relogin_timer(ddb_entry);
1131 status = QLA_SUCCESS;
1135 case DDB_DS_SESSION_FAILED:
1137 case DDB_DS_SESSION_ACTIVE:
1138 ddb_entry->unblock_sess(ddb_entry->sess);
1139 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1140 status = QLA_SUCCESS;
1142 case DDB_DS_SESSION_FAILED:
1143 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1144 qla4xxx_arm_relogin_timer(ddb_entry);
1145 status = QLA_SUCCESS;
1150 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1158 * qla4xxx_process_ddb_changed - process ddb state change
1159 * @ha - Pointer to host adapter structure.
1160 * @fw_ddb_index - Firmware's device database index
1161 * @state - Device state
1163 * This routine processes a Decive Database Changed AEN Event.
1165 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
1166 uint32_t fw_ddb_index,
1167 uint32_t state, uint32_t conn_err)
1169 struct ddb_entry *ddb_entry;
1170 int status = QLA_ERROR;
1172 /* check for out of range index */
1173 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1174 goto exit_ddb_event;
1176 /* Get the corresponging ddb entry */
1177 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1178 /* Device does not currently exist in our database. */
1179 if (ddb_entry == NULL) {
1180 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
1181 __func__, fw_ddb_index);
1183 if (state == DDB_DS_NO_CONNECTION_ACTIVE)
1184 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1186 goto exit_ddb_event;
1189 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
1196 * qla4xxx_login_flash_ddb - Login to target (DDB)
1197 * @cls_session: Pointer to the session to login
1199 * This routine logins to the target.
1200 * Issues setddb and conn open mbx
1202 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
1204 struct iscsi_session *sess;
1205 struct ddb_entry *ddb_entry;
1206 struct scsi_qla_host *ha;
1207 struct dev_db_entry *fw_ddb_entry = NULL;
1208 dma_addr_t fw_ddb_dma;
1209 uint32_t mbx_sts = 0;
1212 sess = cls_session->dd_data;
1213 ddb_entry = sess->dd_data;
1216 if (!test_bit(AF_LINK_UP, &ha->flags))
1219 if (ddb_entry->ddb_type != FLASH_DDB) {
1220 DEBUG2(ql4_printk(KERN_INFO, ha,
1221 "Skipping login to non FLASH DB"));
1225 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
1227 if (fw_ddb_entry == NULL) {
1228 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
1232 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
1233 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
1234 if (ret == QLA_ERROR)
1237 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1241 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
1242 sizeof(struct dev_db_entry));
1243 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
1245 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1246 fw_ddb_dma, &mbx_sts);
1247 if (ret == QLA_ERROR) {
1248 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
1252 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1253 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1254 if (ret == QLA_ERROR) {
1255 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1262 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);