2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2010 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_8xxx_reg->req_q_out);
107 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_in);
109 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_out);
112 * Initialize DMA Shadow registers. The firmware is really
113 * supposed to take care of this, but on some uniprocessor
114 * systems, the shadow registers aren't cleared-- causing
115 * the interrupt_handler to think there are responses to be
116 * processed when there aren't.
118 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
119 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
122 writel(0, &ha->reg->req_q_in);
123 writel(0, &ha->reg->rsp_q_out);
124 readl(&ha->reg->rsp_q_out);
127 qla4xxx_init_response_q_entries(ha);
129 /* Initialize mabilbox active array */
130 for (i = 0; i < MAX_MRB; i++)
131 ha->active_mrb_array[i] = NULL;
133 spin_unlock_irqrestore(&ha->hardware_lock, flags);
139 * qla4xxx_get_sys_info - validate adapter MAC address(es)
140 * @ha: pointer to host adapter structure.
143 int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
145 struct flash_sys_info *sys_info;
146 dma_addr_t sys_info_dma;
147 int status = QLA_ERROR;
149 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
150 &sys_info_dma, GFP_KERNEL);
151 if (sys_info == NULL) {
152 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
153 ha->host_no, __func__));
155 goto exit_get_sys_info_no_free;
157 memset(sys_info, 0, sizeof(*sys_info));
159 /* Get flash sys info */
160 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
161 sizeof(*sys_info)) != QLA_SUCCESS) {
162 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
163 "failed\n", ha->host_no, __func__));
165 goto exit_get_sys_info;
168 /* Save M.A.C. address & serial_number */
169 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
170 min(sizeof(ha->my_mac),
171 sizeof(sys_info->physAddr[0].address)));
172 memcpy(ha->serial_number, &sys_info->acSerialNumber,
173 min(sizeof(ha->serial_number),
174 sizeof(sys_info->acSerialNumber)));
176 status = QLA_SUCCESS;
179 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
182 exit_get_sys_info_no_free:
187 * qla4xxx_init_local_data - initialize adapter specific local data
188 * @ha: pointer to host adapter structure.
191 static int qla4xxx_init_local_data(struct scsi_qla_host *ha)
193 /* Initialize aen queue */
194 ha->aen_q_count = MAX_AEN_ENTRIES;
196 return qla4xxx_get_firmware_status(ha);
200 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
202 uint8_t ipv4_wait = 0;
203 uint8_t ipv6_wait = 0;
204 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
206 /* If both IPv4 & IPv6 are enabled, possibly only one
207 * IP address may be acquired, so check to see if we
208 * need to wait for another */
209 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
210 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
211 ((ha->addl_fw_state &
212 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
215 if (((ha->ip_config.ipv6_addl_options &
216 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
217 ((ha->ip_config.ipv6_link_local_state ==
218 IP_ADDRSTATE_ACQUIRING) ||
219 (ha->ip_config.ipv6_addr0_state ==
220 IP_ADDRSTATE_ACQUIRING) ||
221 (ha->ip_config.ipv6_addr1_state ==
222 IP_ADDRSTATE_ACQUIRING))) {
226 if ((ha->ip_config.ipv6_link_local_state ==
227 IP_ADDRSTATE_PREFERRED) ||
228 (ha->ip_config.ipv6_addr0_state ==
229 IP_ADDRSTATE_PREFERRED) ||
230 (ha->ip_config.ipv6_addr1_state ==
231 IP_ADDRSTATE_PREFERRED)) {
232 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
233 "Preferred IP configured."
234 " Don't wait!\n", ha->host_no,
238 if (memcmp(&ha->ip_config.ipv6_default_router_addr,
239 ip_address, IPv6_ADDR_LEN) == 0) {
240 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
241 "No Router configured. "
242 "Don't wait!\n", ha->host_no,
246 if ((ha->ip_config.ipv6_default_router_state ==
247 IPV6_RTRSTATE_MANUAL) &&
248 (ha->ip_config.ipv6_link_local_state ==
249 IP_ADDRSTATE_TENTATIVE) &&
250 (memcmp(&ha->ip_config.ipv6_link_local_addr,
251 &ha->ip_config.ipv6_default_router_addr, 4) ==
253 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
254 "IP configured. Don't wait!\n",
255 ha->host_no, __func__));
259 if (ipv4_wait || ipv6_wait) {
260 DEBUG2(printk("scsi%ld: %s: Wait for additional "
261 "IP(s) \"", ha->host_no, __func__));
263 DEBUG2(printk("IPv4 "));
264 if (ha->ip_config.ipv6_link_local_state ==
265 IP_ADDRSTATE_ACQUIRING)
266 DEBUG2(printk("IPv6LinkLocal "));
267 if (ha->ip_config.ipv6_addr0_state ==
268 IP_ADDRSTATE_ACQUIRING)
269 DEBUG2(printk("IPv6Addr0 "));
270 if (ha->ip_config.ipv6_addr1_state ==
271 IP_ADDRSTATE_ACQUIRING)
272 DEBUG2(printk("IPv6Addr1 "));
273 DEBUG2(printk("\"\n"));
277 return ipv4_wait|ipv6_wait;
281 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
282 * @ha: pointer to host adapter structure.
284 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
287 uint32_t capture_debug_level;
288 int hdr_entry_bit, k;
290 dma_addr_t md_tmp_dma;
291 struct qla4_8xxx_minidump_template_hdr *md_hdr;
294 ql4_printk(KERN_WARNING, ha,
295 "Firmware dump previously allocated.\n");
299 status = qla4xxx_req_template_size(ha);
300 if (status != QLA_SUCCESS) {
301 ql4_printk(KERN_INFO, ha,
302 "scsi%ld: Failed to get template size\n",
307 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
309 /* Allocate memory for saving the template */
310 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
311 &md_tmp_dma, GFP_KERNEL);
313 /* Request template */
314 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
315 if (status != QLA_SUCCESS) {
316 ql4_printk(KERN_INFO, ha,
317 "scsi%ld: Failed to get minidump template\n",
322 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
324 capture_debug_level = md_hdr->capture_debug_level;
326 /* Get capture mask based on module loadtime setting. */
327 if (ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F)
328 ha->fw_dump_capture_mask = ql4xmdcapmask;
330 ha->fw_dump_capture_mask = capture_debug_level;
332 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
334 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
335 md_hdr->num_of_entries));
336 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
337 ha->fw_dump_tmplt_size));
338 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
339 ha->fw_dump_capture_mask));
341 /* Calculate fw_dump_size */
342 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
343 hdr_entry_bit <<= 1, k++) {
344 if (hdr_entry_bit & ha->fw_dump_capture_mask)
345 ha->fw_dump_size += md_hdr->capture_size_array[k];
348 /* Total firmware dump size including command header */
349 ha->fw_dump_size += ha->fw_dump_tmplt_size;
350 ha->fw_dump = vmalloc(ha->fw_dump_size);
354 DEBUG2(ql4_printk(KERN_INFO, ha,
355 "Minidump Tempalate Size = 0x%x KB\n",
356 ha->fw_dump_tmplt_size));
357 DEBUG2(ql4_printk(KERN_INFO, ha,
358 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
360 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
361 ha->fw_dump_tmplt_hdr = ha->fw_dump;
364 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
368 static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
370 uint32_t timeout_count;
373 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
374 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
376 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
377 qla4xxx_get_dhcp_ip_address(ha);
379 /* Get firmware state. */
380 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
381 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
382 "state\n", ha->host_no, __func__));
386 if (ha->firmware_state & FW_STATE_ERROR) {
387 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
388 " occurred\n", ha->host_no, __func__));
392 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
394 * The firmware has not yet been issued an Initialize
395 * Firmware command, so issue it now.
397 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
400 /* Go back and test for ready state - no wait. */
404 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
405 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
406 "AUTOCONNECT in progress\n",
407 ha->host_no, __func__));
410 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
411 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
413 ha->host_no, __func__));
415 * Check for link state after 15 secs and if link is
416 * still DOWN then, cable is unplugged. Ignore "DHCP
417 * in Progress/CONFIGURING IP" bit to check if firmware
418 * is in ready state or not after 15 secs.
419 * This is applicable for both 2.x & 3.x firmware
421 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
422 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
423 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
424 " LINK UP (Cable plugged)\n",
425 ha->host_no, __func__));
426 } else if (ha->firmware_state &
427 (FW_STATE_CONFIGURING_IP |
429 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
430 "LINK DOWN (Cable unplugged)\n",
431 ha->host_no, __func__));
432 ha->firmware_state = FW_STATE_READY;
437 if (ha->firmware_state == FW_STATE_READY) {
438 /* If DHCP IP Addr is available, retrieve it now. */
439 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
441 qla4xxx_get_dhcp_ip_address(ha);
443 if (!qla4xxx_wait_for_ip_config(ha) ||
444 timeout_count == 1) {
445 DEBUG2(ql4_printk(KERN_INFO, ha,
446 "Firmware Ready..\n"));
447 /* The firmware is ready to process SCSI
449 DEBUG2(ql4_printk(KERN_INFO, ha,
450 "scsi%ld: %s: MEDIA TYPE"
451 " - %s\n", ha->host_no,
452 __func__, (ha->addl_fw_state &
453 FW_ADDSTATE_OPTICAL_MEDIA)
454 != 0 ? "OPTICAL" : "COPPER"));
455 DEBUG2(ql4_printk(KERN_INFO, ha,
456 "scsi%ld: %s: DHCPv4 STATE"
457 " Enabled %s\n", ha->host_no,
458 __func__, (ha->addl_fw_state &
459 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
461 DEBUG2(ql4_printk(KERN_INFO, ha,
462 "scsi%ld: %s: LINK %s\n",
463 ha->host_no, __func__,
465 FW_ADDSTATE_LINK_UP) != 0 ?
467 DEBUG2(ql4_printk(KERN_INFO, ha,
468 "scsi%ld: %s: iSNS Service "
470 ha->host_no, __func__,
472 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
479 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
480 "seconds expired= %d\n", ha->host_no, __func__,
481 ha->firmware_state, ha->addl_fw_state,
483 if (is_qla4032(ha) &&
484 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
485 (timeout_count < ADAPTER_INIT_TOV - 5)) {
492 if (timeout_count <= 0)
493 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
494 ha->host_no, __func__));
496 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
497 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
498 "it's waiting to configure an IP address\n",
499 ha->host_no, __func__));
501 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
502 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
503 "auto-discovery still in process\n",
504 ha->host_no, __func__));
512 * qla4xxx_init_firmware - initializes the firmware.
513 * @ha: pointer to host adapter structure.
516 static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
518 int status = QLA_ERROR;
520 if (is_aer_supported(ha) &&
521 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
524 /* For 82xx, stop firmware before initializing because if BIOS
525 * has previously initialized firmware, then driver's initialize
526 * firmware will fail. */
528 qla4_8xxx_stop_firmware(ha);
530 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
531 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
532 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
533 "control block\n", ha->host_no, __func__));
537 if (!qla4xxx_fw_ready(ha))
540 if (is_qla8022(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
541 qla4xxx_alloc_fw_dump(ha);
543 return qla4xxx_get_firmware_status(ha);
546 static void qla4xxx_set_model_info(struct scsi_qla_host *ha)
548 uint16_t board_id_string[8];
550 int size = sizeof(ha->nvram->isp4022.boardIdStr);
551 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;
553 for (i = 0; i < (size / 2) ; i++) {
554 board_id_string[i] = rd_nvram_word(ha, offset);
558 memcpy(ha->model_name, board_id_string, size);
561 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
564 union external_hw_config_reg extHwConfig;
566 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
568 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
570 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
571 ql4xxx_unlock_flash(ha);
575 /* Get EEPRom Parameters from NVRAM and validate */
576 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
577 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
578 spin_lock_irqsave(&ha->hardware_lock, flags);
579 extHwConfig.Asuint32_t =
580 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
581 spin_unlock_irqrestore(&ha->hardware_lock, flags);
583 ql4_printk(KERN_WARNING, ha,
584 "scsi%ld: %s: EEProm checksum invalid. "
585 "Please update your EEPROM\n", ha->host_no,
588 /* Attempt to set defaults */
590 extHwConfig.Asuint32_t = 0x1912;
591 else if (is_qla4022(ha) | is_qla4032(ha))
592 extHwConfig.Asuint32_t = 0x0023;
597 if (is_qla4022(ha) || is_qla4032(ha))
598 qla4xxx_set_model_info(ha);
600 strcpy(ha->model_name, "QLA4010");
602 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
603 ha->host_no, __func__, extHwConfig.Asuint32_t));
605 spin_lock_irqsave(&ha->hardware_lock, flags);
606 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
607 readl(isp_ext_hw_conf(ha));
608 spin_unlock_irqrestore(&ha->hardware_lock, flags);
610 ql4xxx_unlock_nvram(ha);
611 ql4xxx_unlock_flash(ha);
617 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
620 void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
622 pci_set_master(ha->pdev);
625 void qla4xxx_pci_config(struct scsi_qla_host *ha)
630 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
632 pci_set_master(ha->pdev);
633 status = pci_set_mwi(ha->pdev);
635 * We want to respect framework's setting of PCI configuration space
636 * command register and also want to make sure that all bits of
637 * interest to us are properly set in command register.
639 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
640 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
641 w &= ~PCI_COMMAND_INTX_DISABLE;
642 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
645 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
647 int status = QLA_ERROR;
648 unsigned long max_wait_time;
650 uint32_t mbox_status;
652 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
655 * Start firmware from flash ROM
657 * WORKAROUND: Stuff a non-constant value that the firmware can
658 * use as a seed for a random number generator in MB7 prior to
659 * setting BOOT_ENABLE. Fixes problem where the TCP
660 * connections use the same TCP ports after each reboot,
661 * causing some connections to not get re-established.
663 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
664 ha->host_no, __func__));
666 spin_lock_irqsave(&ha->hardware_lock, flags);
667 writel(jiffies, &ha->reg->mailbox[7]);
668 if (is_qla4022(ha) | is_qla4032(ha))
669 writel(set_rmask(NVR_WRITE_ENABLE),
670 &ha->reg->u1.isp4022.nvram);
672 writel(2, &ha->reg->mailbox[6]);
673 readl(&ha->reg->mailbox[6]);
675 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
676 readl(&ha->reg->ctrl_status);
677 spin_unlock_irqrestore(&ha->hardware_lock, flags);
679 /* Wait for firmware to come UP. */
680 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
681 "boot firmware to complete...\n",
682 ha->host_no, __func__, FIRMWARE_UP_TOV));
683 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
685 uint32_t ctrl_status;
687 spin_lock_irqsave(&ha->hardware_lock, flags);
688 ctrl_status = readw(&ha->reg->ctrl_status);
689 mbox_status = readw(&ha->reg->mailbox[0]);
690 spin_unlock_irqrestore(&ha->hardware_lock, flags);
692 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
694 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
697 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
698 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n",
699 ha->host_no, __func__, ctrl_status, max_wait_time));
701 msleep_interruptible(250);
702 } while (!time_after_eq(jiffies, max_wait_time));
704 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
705 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
706 ha->host_no, __func__));
708 spin_lock_irqsave(&ha->hardware_lock, flags);
709 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
710 &ha->reg->ctrl_status);
711 readl(&ha->reg->ctrl_status);
712 spin_unlock_irqrestore(&ha->hardware_lock, flags);
714 status = QLA_SUCCESS;
716 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
717 "- mbox status 0x%x\n", ha->host_no, __func__,
724 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
726 #define QL4_LOCK_DRVR_WAIT 60
727 #define QL4_LOCK_DRVR_SLEEP 1
729 int drvr_wait = QL4_LOCK_DRVR_WAIT;
731 if (ql4xxx_lock_drvr(a) == 0) {
732 ssleep(QL4_LOCK_DRVR_SLEEP);
734 DEBUG2(printk("scsi%ld: %s: Waiting for "
735 "Global Init Semaphore(%d)...\n",
737 __func__, drvr_wait));
739 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
741 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
742 "acquired\n", a->host_no, __func__));
750 * qla4xxx_start_firmware - starts qla4xxx firmware
751 * @ha: Pointer to host adapter structure.
753 * This routine performs the necessary steps to start the firmware for
754 * the QLA4010 adapter.
756 int qla4xxx_start_firmware(struct scsi_qla_host *ha)
758 unsigned long flags = 0;
759 uint32_t mbox_status;
760 int status = QLA_ERROR;
764 if (is_qla4022(ha) | is_qla4032(ha))
765 ql4xxx_set_mac_number(ha);
767 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
770 spin_lock_irqsave(&ha->hardware_lock, flags);
772 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
773 __func__, readw(isp_port_ctrl(ha))));
774 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
775 __func__, readw(isp_port_status(ha))));
777 /* Is Hardware already initialized? */
778 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
779 DEBUG(printk("scsi%ld: %s: Hardware has already been "
780 "initialized\n", ha->host_no, __func__));
782 /* Receive firmware boot acknowledgement */
783 mbox_status = readw(&ha->reg->mailbox[0]);
785 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
786 "0x%x\n", ha->host_no, __func__, mbox_status));
788 /* Is firmware already booted? */
789 if (mbox_status == 0) {
790 /* F/W not running, must be config by net driver */
794 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
795 &ha->reg->ctrl_status);
796 readl(&ha->reg->ctrl_status);
797 writel(set_rmask(CSR_SCSI_COMPLETION_INTR),
798 &ha->reg->ctrl_status);
799 readl(&ha->reg->ctrl_status);
800 spin_unlock_irqrestore(&ha->hardware_lock, flags);
801 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
802 DEBUG2(printk("scsi%ld: %s: Get firmware "
803 "state -- state = 0x%x\n",
805 __func__, ha->firmware_state));
807 if (ha->firmware_state &
808 FW_STATE_CONFIG_WAIT) {
809 DEBUG2(printk("scsi%ld: %s: Firmware "
812 "boot, state = 0x%x\n",
813 ha->host_no, __func__,
814 ha->firmware_state));
819 DEBUG2(printk("scsi%ld: %s: Firmware in "
820 "unknown state -- resetting,"
822 "0x%x\n", ha->host_no, __func__,
823 ha->firmware_state));
825 spin_lock_irqsave(&ha->hardware_lock, flags);
828 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
829 "started - resetting\n", ha->host_no, __func__));
831 spin_unlock_irqrestore(&ha->hardware_lock, flags);
833 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
834 ha->host_no, __func__, soft_reset, config_chip));
836 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
838 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr
839 * lock again, but ok */
840 if (status == QLA_ERROR) {
841 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
842 ha->host_no, __func__));
843 ql4xxx_unlock_drvr(ha);
848 /* Reset clears the semaphore, so acquire again */
849 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
854 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
855 status = qla4xxx_start_firmware_from_flash(ha);
858 ql4xxx_unlock_drvr(ha);
859 if (status == QLA_SUCCESS) {
860 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
861 qla4xxx_get_crash_record(ha);
863 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
864 ha->host_no, __func__));
869 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware
870 * @ha: pointer to adapter structure
872 * Since firmware is not running in autoconnect mode the DDB indices should
873 * be freed so that when login happens from user space there are free DDB
876 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
880 uint32_t idx = 0, next_idx = 0;
881 uint32_t state = 0, conn_err = 0;
883 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
886 for (idx = 0; idx < max_ddbs; idx = next_idx) {
887 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
888 &next_idx, &state, &conn_err,
890 if (ret == QLA_ERROR) {
894 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
895 state == DDB_DS_SESSION_FAILED) {
896 DEBUG2(ql4_printk(KERN_INFO, ha,
897 "Freeing DDB index = 0x%x\n", idx));
898 ret = qla4xxx_clear_ddb_entry(ha, idx);
899 if (ret == QLA_ERROR)
900 ql4_printk(KERN_ERR, ha,
901 "Unable to clear DDB index = "
910 * qla4xxx_initialize_adapter - initiailizes hba
911 * @ha: Pointer to host adapter structure.
913 * This routine parforms all of the steps necessary to initialize the adapter.
916 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
918 int status = QLA_ERROR;
920 ha->eeprom_cmd_data = 0;
922 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
923 ha->isp_ops->pci_config(ha);
925 ha->isp_ops->disable_intrs(ha);
927 /* Initialize the Host adapter request/response queues and firmware */
928 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
931 if (qla4xxx_about_firmware(ha) == QLA_ERROR)
934 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
937 if (qla4xxx_init_local_data(ha) == QLA_ERROR)
940 status = qla4xxx_init_firmware(ha);
941 if (status == QLA_ERROR)
944 if (is_reset == RESET_ADAPTER)
945 qla4xxx_build_ddb_list(ha, is_reset);
947 set_bit(AF_ONLINE, &ha->flags);
949 if (is_qla8022(ha) && (status == QLA_ERROR)) {
950 /* Since interrupts are registered in start_firmware for
951 * 82xx, release them here if initialize_adapter fails */
952 qla4xxx_free_irqs(ha);
955 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
956 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
960 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
961 struct ddb_entry *ddb_entry, uint32_t state)
963 uint32_t old_fw_ddb_device_state;
964 int status = QLA_ERROR;
966 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
967 DEBUG2(ql4_printk(KERN_INFO, ha,
968 "%s: DDB - old state = 0x%x, new state = 0x%x for "
969 "index [%d]\n", __func__,
970 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
972 ddb_entry->fw_ddb_device_state = state;
974 switch (old_fw_ddb_device_state) {
975 case DDB_DS_LOGIN_IN_PROCESS:
977 case DDB_DS_SESSION_ACTIVE:
978 case DDB_DS_DISCOVERY:
979 qla4xxx_update_session_conn_param(ha, ddb_entry);
980 ddb_entry->unblock_sess(ddb_entry->sess);
981 status = QLA_SUCCESS;
983 case DDB_DS_SESSION_FAILED:
984 case DDB_DS_NO_CONNECTION_ACTIVE:
985 iscsi_conn_login_event(ddb_entry->conn,
986 ISCSI_CONN_STATE_FREE);
987 status = QLA_SUCCESS;
991 case DDB_DS_SESSION_ACTIVE:
992 case DDB_DS_DISCOVERY:
994 case DDB_DS_SESSION_FAILED:
996 * iscsi_session failure will cause userspace to
997 * stop the connection which in turn would block the
998 * iscsi_session and start relogin
1000 iscsi_session_failure(ddb_entry->sess->dd_data,
1001 ISCSI_ERR_CONN_FAILED);
1002 status = QLA_SUCCESS;
1004 case DDB_DS_NO_CONNECTION_ACTIVE:
1005 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1006 status = QLA_SUCCESS;
1010 case DDB_DS_SESSION_FAILED:
1012 case DDB_DS_SESSION_ACTIVE:
1013 case DDB_DS_DISCOVERY:
1014 ddb_entry->unblock_sess(ddb_entry->sess);
1015 qla4xxx_update_session_conn_param(ha, ddb_entry);
1016 status = QLA_SUCCESS;
1018 case DDB_DS_SESSION_FAILED:
1019 iscsi_session_failure(ddb_entry->sess->dd_data,
1020 ISCSI_ERR_CONN_FAILED);
1021 status = QLA_SUCCESS;
1026 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1033 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
1036 * This triggers a relogin. After the relogin_timer
1037 * expires, the relogin gets scheduled. We must wait a
1038 * minimum amount of time since receiving an 0x8014 AEN
1039 * with failed device_state or a logout response before
1040 * we can issue another relogin.
1042 * Firmware pads this timeout: (time2wait +1).
1043 * Driver retry to login should be longer than F/W.
1044 * Otherwise F/W will fail
1045 * set_ddb() mbx cmd with 0x4005 since it still
1046 * counting down its time2wait.
1048 atomic_set(&ddb_entry->relogin_timer, 0);
1049 atomic_set(&ddb_entry->retry_relogin_timer,
1050 ddb_entry->default_time2wait + 4);
1054 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1055 struct ddb_entry *ddb_entry, uint32_t state)
1057 uint32_t old_fw_ddb_device_state;
1058 int status = QLA_ERROR;
1060 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1061 DEBUG2(ql4_printk(KERN_INFO, ha,
1062 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1063 "index [%d]\n", __func__,
1064 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1066 ddb_entry->fw_ddb_device_state = state;
1068 switch (old_fw_ddb_device_state) {
1069 case DDB_DS_LOGIN_IN_PROCESS:
1070 case DDB_DS_NO_CONNECTION_ACTIVE:
1072 case DDB_DS_SESSION_ACTIVE:
1073 ddb_entry->unblock_sess(ddb_entry->sess);
1074 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1075 status = QLA_SUCCESS;
1077 case DDB_DS_SESSION_FAILED:
1078 iscsi_block_session(ddb_entry->sess);
1079 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1080 qla4xxx_arm_relogin_timer(ddb_entry);
1081 status = QLA_SUCCESS;
1085 case DDB_DS_SESSION_ACTIVE:
1087 case DDB_DS_SESSION_FAILED:
1088 iscsi_block_session(ddb_entry->sess);
1089 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1090 qla4xxx_arm_relogin_timer(ddb_entry);
1091 status = QLA_SUCCESS;
1095 case DDB_DS_SESSION_FAILED:
1097 case DDB_DS_SESSION_ACTIVE:
1098 ddb_entry->unblock_sess(ddb_entry->sess);
1099 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1100 status = QLA_SUCCESS;
1102 case DDB_DS_SESSION_FAILED:
1103 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1104 qla4xxx_arm_relogin_timer(ddb_entry);
1105 status = QLA_SUCCESS;
1110 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1118 * qla4xxx_process_ddb_changed - process ddb state change
1119 * @ha - Pointer to host adapter structure.
1120 * @fw_ddb_index - Firmware's device database index
1121 * @state - Device state
1123 * This routine processes a Decive Database Changed AEN Event.
1125 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
1126 uint32_t fw_ddb_index,
1127 uint32_t state, uint32_t conn_err)
1129 struct ddb_entry *ddb_entry;
1130 int status = QLA_ERROR;
1132 /* check for out of range index */
1133 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1134 goto exit_ddb_event;
1136 /* Get the corresponging ddb entry */
1137 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1138 /* Device does not currently exist in our database. */
1139 if (ddb_entry == NULL) {
1140 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
1141 __func__, fw_ddb_index);
1143 if (state == DDB_DS_NO_CONNECTION_ACTIVE)
1144 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1146 goto exit_ddb_event;
1149 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
1156 * qla4xxx_login_flash_ddb - Login to target (DDB)
1157 * @cls_session: Pointer to the session to login
1159 * This routine logins to the target.
1160 * Issues setddb and conn open mbx
1162 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
1164 struct iscsi_session *sess;
1165 struct ddb_entry *ddb_entry;
1166 struct scsi_qla_host *ha;
1167 struct dev_db_entry *fw_ddb_entry = NULL;
1168 dma_addr_t fw_ddb_dma;
1169 uint32_t mbx_sts = 0;
1172 sess = cls_session->dd_data;
1173 ddb_entry = sess->dd_data;
1176 if (!test_bit(AF_LINK_UP, &ha->flags))
1179 if (ddb_entry->ddb_type != FLASH_DDB) {
1180 DEBUG2(ql4_printk(KERN_INFO, ha,
1181 "Skipping login to non FLASH DB"));
1185 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
1187 if (fw_ddb_entry == NULL) {
1188 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
1192 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
1193 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
1194 if (ret == QLA_ERROR)
1197 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1201 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
1202 sizeof(struct dev_db_entry));
1203 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
1205 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1206 fw_ddb_dma, &mbx_sts);
1207 if (ret == QLA_ERROR) {
1208 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
1212 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1213 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1214 if (ret == QLA_ERROR) {
1215 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1222 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);