2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2006 QLogic Corporation
5 * See LICENSE.qla4xxx for copyright and licensing details.
8 #include <scsi/iscsi_if.h>
12 #include "ql4_inline.h"
14 static struct ddb_entry
* qla4xxx_alloc_ddb(struct scsi_qla_host
*ha
,
15 uint32_t fw_ddb_index
);
17 static void ql4xxx_set_mac_number(struct scsi_qla_host
*ha
)
23 /* Get the function number */
24 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
25 value
= readw(&ha
->reg
->ctrl_status
);
26 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
28 func_number
= (uint8_t) ((value
>> 4) & 0x30);
29 switch (value
& ISP_CONTROL_FN_MASK
) {
30 case ISP_CONTROL_FN0_SCSI
:
33 case ISP_CONTROL_FN1_SCSI
:
37 DEBUG2(printk("scsi%ld: %s: Invalid function number, "
38 "ispControlStatus = 0x%x\n", ha
->host_no
,
42 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha
->host_no
, __func__
,
47 * qla4xxx_free_ddb - deallocate ddb
48 * @ha: pointer to host adapter structure.
49 * @ddb_entry: pointer to device database entry
51 * This routine deallocates and unlinks the specified ddb_entry from the
54 static void qla4xxx_free_ddb(struct scsi_qla_host
*ha
,
55 struct ddb_entry
*ddb_entry
)
57 /* Remove device entry from list */
58 list_del_init(&ddb_entry
->list
);
60 /* Remove device pointer from index mapping arrays */
61 ha
->fw_ddb_index_map
[ddb_entry
->fw_ddb_index
] =
62 (struct ddb_entry
*) INVALID_ENTRY
;
65 /* Free memory and scsi-ml struct for device entry */
66 qla4xxx_destroy_sess(ddb_entry
);
70 * qla4xxx_free_ddb_list - deallocate all ddbs
71 * @ha: pointer to host adapter structure.
73 * This routine deallocates and removes all devices on the sppecified adapter.
75 void qla4xxx_free_ddb_list(struct scsi_qla_host
*ha
)
77 struct list_head
*ptr
;
78 struct ddb_entry
*ddb_entry
;
80 while (!list_empty(&ha
->ddb_list
)) {
81 ptr
= ha
->ddb_list
.next
;
82 /* Free memory for device entry and remove */
83 ddb_entry
= list_entry(ptr
, struct ddb_entry
, list
);
84 qla4xxx_free_ddb(ha
, ddb_entry
);
89 * qla4xxx_init_rings - initialize hw queues
90 * @ha: pointer to host adapter structure.
92 * This routine initializes the internal queues for the specified adapter.
93 * The QLA4010 requires us to restart the queues at index 0.
94 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
96 int qla4xxx_init_rings(struct scsi_qla_host
*ha
)
98 unsigned long flags
= 0;
100 /* Initialize request queue. */
101 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
104 ha
->request_ptr
= &ha
->request_ring
[ha
->request_in
];
105 ha
->req_q_count
= REQUEST_QUEUE_DEPTH
;
107 /* Initialize response queue. */
109 ha
->response_out
= 0;
110 ha
->response_ptr
= &ha
->response_ring
[ha
->response_out
];
113 * Initialize DMA Shadow registers. The firmware is really supposed to
114 * take care of this, but on some uniprocessor systems, the shadow
115 * registers aren't cleared-- causing the interrupt_handler to think
116 * there are responses to be 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
);
126 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
132 * qla4xxx_validate_mac_address - validate adapter MAC address(es)
133 * @ha: pointer to host adapter structure.
136 static int qla4xxx_validate_mac_address(struct scsi_qla_host
*ha
)
138 struct flash_sys_info
*sys_info
;
139 dma_addr_t sys_info_dma
;
140 int status
= QLA_ERROR
;
142 sys_info
= dma_alloc_coherent(&ha
->pdev
->dev
, sizeof(*sys_info
),
143 &sys_info_dma
, GFP_KERNEL
);
144 if (sys_info
== NULL
) {
145 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
146 ha
->host_no
, __func__
));
148 goto exit_validate_mac_no_free
;
150 memset(sys_info
, 0, sizeof(*sys_info
));
152 /* Get flash sys info */
153 if (qla4xxx_get_flash(ha
, sys_info_dma
, FLASH_OFFSET_SYS_INFO
,
154 sizeof(*sys_info
)) != QLA_SUCCESS
) {
155 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
156 "failed\n", ha
->host_no
, __func__
));
158 goto exit_validate_mac
;
161 /* Save M.A.C. address & serial_number */
162 memcpy(ha
->my_mac
, &sys_info
->physAddr
[0].address
[0],
163 min(sizeof(ha
->my_mac
),
164 sizeof(sys_info
->physAddr
[0].address
)));
165 memcpy(ha
->serial_number
, &sys_info
->acSerialNumber
,
166 min(sizeof(ha
->serial_number
),
167 sizeof(sys_info
->acSerialNumber
)));
169 status
= QLA_SUCCESS
;
172 dma_free_coherent(&ha
->pdev
->dev
, sizeof(*sys_info
), sys_info
,
175 exit_validate_mac_no_free
:
180 * qla4xxx_init_local_data - initialize adapter specific local data
181 * @ha: pointer to host adapter structure.
184 static int qla4xxx_init_local_data(struct scsi_qla_host
*ha
)
186 /* Initilize aen queue */
187 ha
->aen_q_count
= MAX_AEN_ENTRIES
;
189 return qla4xxx_get_firmware_status(ha
);
193 qla4xxx_wait_for_ip_config(struct scsi_qla_host
*ha
)
195 uint8_t ipv4_wait
= 0;
196 uint8_t ipv6_wait
= 0;
197 int8_t ip_address
[IPv6_ADDR_LEN
] = {0} ;
199 /* If both IPv4 & IPv6 are enabled, possibly only one
200 * IP address may be acquired, so check to see if we
201 * need to wait for another */
202 if (is_ipv4_enabled(ha
) && is_ipv6_enabled(ha
)) {
203 if (((ha
->addl_fw_state
& FW_ADDSTATE_DHCPv4_ENABLED
) != 0) &&
204 ((ha
->addl_fw_state
&
205 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED
) == 0)) {
208 if (((ha
->ipv6_addl_options
&
209 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE
) != 0) &&
210 ((ha
->ipv6_link_local_state
== IP_ADDRSTATE_ACQUIRING
) ||
211 (ha
->ipv6_addr0_state
== IP_ADDRSTATE_ACQUIRING
) ||
212 (ha
->ipv6_addr1_state
== IP_ADDRSTATE_ACQUIRING
))) {
216 if ((ha
->ipv6_link_local_state
==
217 IP_ADDRSTATE_PREFERRED
) ||
218 (ha
->ipv6_addr0_state
== IP_ADDRSTATE_PREFERRED
) ||
219 (ha
->ipv6_addr1_state
== IP_ADDRSTATE_PREFERRED
)) {
220 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: "
221 "Preferred IP configured."
222 " Don't wait!\n", ha
->host_no
,
226 if (memcmp(&ha
->ipv6_default_router_addr
, ip_address
,
227 IPv6_ADDR_LEN
) == 0) {
228 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: "
229 "No Router configured. "
230 "Don't wait!\n", ha
->host_no
,
234 if ((ha
->ipv6_default_router_state
==
235 IPV6_RTRSTATE_MANUAL
) &&
236 (ha
->ipv6_link_local_state
==
237 IP_ADDRSTATE_TENTATIVE
) &&
238 (memcmp(&ha
->ipv6_link_local_addr
,
239 &ha
->ipv6_default_router_addr
, 4) == 0)) {
240 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
241 "IP configured. Don't wait!\n",
242 ha
->host_no
, __func__
));
246 if (ipv4_wait
|| ipv6_wait
) {
247 DEBUG2(printk("scsi%ld: %s: Wait for additional "
248 "IP(s) \"", ha
->host_no
, __func__
));
250 DEBUG2(printk("IPv4 "));
251 if (ha
->ipv6_link_local_state
== IP_ADDRSTATE_ACQUIRING
)
252 DEBUG2(printk("IPv6LinkLocal "));
253 if (ha
->ipv6_addr0_state
== IP_ADDRSTATE_ACQUIRING
)
254 DEBUG2(printk("IPv6Addr0 "));
255 if (ha
->ipv6_addr1_state
== IP_ADDRSTATE_ACQUIRING
)
256 DEBUG2(printk("IPv6Addr1 "));
257 DEBUG2(printk("\"\n"));
261 return ipv4_wait
|ipv6_wait
;
264 static int qla4xxx_fw_ready(struct scsi_qla_host
*ha
)
266 uint32_t timeout_count
;
269 DEBUG2(dev_info(&ha
->pdev
->dev
, "Waiting for Firmware Ready..\n"));
270 for (timeout_count
= ADAPTER_INIT_TOV
; timeout_count
> 0;
272 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR
, &ha
->dpc_flags
))
273 qla4xxx_get_dhcp_ip_address(ha
);
275 /* Get firmware state. */
276 if (qla4xxx_get_firmware_state(ha
) != QLA_SUCCESS
) {
277 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
278 "state\n", ha
->host_no
, __func__
));
283 if (ha
->firmware_state
& FW_STATE_ERROR
) {
284 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
285 " occurred\n", ha
->host_no
, __func__
));
289 if (ha
->firmware_state
& FW_STATE_CONFIG_WAIT
) {
291 * The firmware has not yet been issued an Initialize
292 * Firmware command, so issue it now.
294 if (qla4xxx_initialize_fw_cb(ha
) == QLA_ERROR
)
297 /* Go back and test for ready state - no wait. */
301 if (ha
->firmware_state
& FW_STATE_WAIT_AUTOCONNECT
) {
302 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: fwstate:"
303 "AUTOCONNECT in progress\n",
304 ha
->host_no
, __func__
));
307 if (ha
->firmware_state
& FW_STATE_CONFIGURING_IP
) {
308 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: fwstate:"
310 ha
->host_no
, __func__
));
312 * Check for link state after 15 secs and if link is
313 * still DOWN then, cable is unplugged. Ignore "DHCP
314 * in Progress/CONFIGURING IP" bit to check if firmware
315 * is in ready state or not after 15 secs.
316 * This is applicable for both 2.x & 3.x firmware
318 if (timeout_count
<= (ADAPTER_INIT_TOV
- 15)) {
319 if (ha
->addl_fw_state
& FW_ADDSTATE_LINK_UP
) {
320 DEBUG2(printk(KERN_INFO
"scsi%ld: %s:"
321 " LINK UP (Cable plugged)\n",
322 ha
->host_no
, __func__
));
323 } else if (ha
->firmware_state
&
324 (FW_STATE_CONFIGURING_IP
|
326 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: "
327 "LINK DOWN (Cable unplugged)\n",
328 ha
->host_no
, __func__
));
329 ha
->firmware_state
= FW_STATE_READY
;
334 if (ha
->firmware_state
== FW_STATE_READY
) {
335 /* If DHCP IP Addr is available, retrieve it now. */
336 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR
,
338 qla4xxx_get_dhcp_ip_address(ha
);
340 if (!qla4xxx_wait_for_ip_config(ha
) ||
341 timeout_count
== 1) {
342 DEBUG2(dev_info(&ha
->pdev
->dev
,
343 "Firmware Ready..\n"));
344 /* The firmware is ready to process SCSI
346 DEBUG2(dev_info(&ha
->pdev
->dev
,
347 "scsi%ld: %s: MEDIA TYPE"
348 " - %s\n", ha
->host_no
,
349 __func__
, (ha
->addl_fw_state
&
350 FW_ADDSTATE_OPTICAL_MEDIA
)
351 != 0 ? "OPTICAL" : "COPPER"));
352 DEBUG2(dev_info(&ha
->pdev
->dev
,
353 "scsi%ld: %s: DHCPv4 STATE"
354 " Enabled %s\n", ha
->host_no
,
355 __func__
, (ha
->addl_fw_state
&
356 FW_ADDSTATE_DHCPv4_ENABLED
) != 0 ?
358 DEBUG2(dev_info(&ha
->pdev
->dev
,
359 "scsi%ld: %s: LINK %s\n",
360 ha
->host_no
, __func__
,
362 FW_ADDSTATE_LINK_UP
) != 0 ?
364 DEBUG2(dev_info(&ha
->pdev
->dev
,
365 "scsi%ld: %s: iSNS Service "
367 ha
->host_no
, __func__
,
369 FW_ADDSTATE_ISNS_SVC_ENABLED
) != 0 ?
376 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
377 "seconds expired= %d\n", ha
->host_no
, __func__
,
378 ha
->firmware_state
, ha
->addl_fw_state
,
380 if (is_qla4032(ha
) &&
381 !(ha
->addl_fw_state
& FW_ADDSTATE_LINK_UP
) &&
382 (timeout_count
< ADAPTER_INIT_TOV
- 5)) {
389 if (timeout_count
<= 0)
390 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
391 ha
->host_no
, __func__
));
393 if (ha
->firmware_state
& FW_STATE_CONFIGURING_IP
) {
394 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
395 "it's waiting to configure an IP address\n",
396 ha
->host_no
, __func__
));
398 } else if (ha
->firmware_state
& FW_STATE_WAIT_AUTOCONNECT
) {
399 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
400 "auto-discovery still in process\n",
401 ha
->host_no
, __func__
));
408 * qla4xxx_init_firmware - initializes the firmware.
409 * @ha: pointer to host adapter structure.
412 static int qla4xxx_init_firmware(struct scsi_qla_host
*ha
)
414 int status
= QLA_ERROR
;
416 dev_info(&ha
->pdev
->dev
, "Initializing firmware..\n");
417 if (qla4xxx_initialize_fw_cb(ha
) == QLA_ERROR
) {
418 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
419 "control block\n", ha
->host_no
, __func__
));
422 if (!qla4xxx_fw_ready(ha
))
425 return qla4xxx_get_firmware_status(ha
);
428 static struct ddb_entry
* qla4xxx_get_ddb_entry(struct scsi_qla_host
*ha
,
429 uint32_t fw_ddb_index
,
432 struct dev_db_entry
*fw_ddb_entry
= NULL
;
433 dma_addr_t fw_ddb_entry_dma
;
434 struct ddb_entry
*ddb_entry
= NULL
;
436 uint32_t device_state
;
439 /* Make sure the dma buffer is valid */
440 fw_ddb_entry
= dma_alloc_coherent(&ha
->pdev
->dev
,
441 sizeof(*fw_ddb_entry
),
442 &fw_ddb_entry_dma
, GFP_KERNEL
);
443 if (fw_ddb_entry
== NULL
) {
444 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
445 ha
->host_no
, __func__
));
449 if (qla4xxx_get_fwddb_entry(ha
, fw_ddb_index
, fw_ddb_entry
,
450 fw_ddb_entry_dma
, NULL
, NULL
,
451 &device_state
, NULL
, NULL
, NULL
) ==
453 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
454 "fw_ddb_index %d\n", ha
->host_no
, __func__
,
459 /* Allocate DDB if not already allocated. */
460 DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha
->host_no
,
461 __func__
, fw_ddb_index
));
462 list_for_each_entry(ddb_entry
, &ha
->ddb_list
, list
) {
463 if ((memcmp(ddb_entry
->iscsi_name
, fw_ddb_entry
->iscsi_name
,
464 ISCSI_NAME_SIZE
) == 0) &&
466 le32_to_cpu(fw_ddb_entry
->tgt_portal_grp
)) &&
467 (memcmp(ddb_entry
->isid
, fw_ddb_entry
->isid
,
468 sizeof(ddb_entry
->isid
)) == 0)) {
475 DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating "
476 "new ddb\n", ha
->host_no
, __func__
,
479 ddb_entry
= qla4xxx_alloc_ddb(ha
, fw_ddb_index
);
482 /* if not found allocate new ddb */
483 dma_free_coherent(&ha
->pdev
->dev
, sizeof(*fw_ddb_entry
), fw_ddb_entry
,
490 * qla4xxx_update_ddb_entry - update driver's internal ddb
491 * @ha: pointer to host adapter structure.
492 * @ddb_entry: pointer to device database structure to be filled
493 * @fw_ddb_index: index of the ddb entry in fw ddb table
495 * This routine updates the driver's internal device database entry
496 * with information retrieved from the firmware's device database
497 * entry for the specified device. The ddb_entry->fw_ddb_index field
498 * must be initialized prior to calling this routine
501 static int qla4xxx_update_ddb_entry(struct scsi_qla_host
*ha
,
502 struct ddb_entry
*ddb_entry
,
503 uint32_t fw_ddb_index
)
505 struct dev_db_entry
*fw_ddb_entry
= NULL
;
506 dma_addr_t fw_ddb_entry_dma
;
507 int status
= QLA_ERROR
;
510 if (ddb_entry
== NULL
) {
511 DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha
->host_no
,
513 goto exit_update_ddb
;
516 /* Make sure the dma buffer is valid */
517 fw_ddb_entry
= dma_alloc_coherent(&ha
->pdev
->dev
,
518 sizeof(*fw_ddb_entry
),
519 &fw_ddb_entry_dma
, GFP_KERNEL
);
520 if (fw_ddb_entry
== NULL
) {
521 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
522 ha
->host_no
, __func__
));
524 goto exit_update_ddb
;
527 if (qla4xxx_get_fwddb_entry(ha
, fw_ddb_index
, fw_ddb_entry
,
528 fw_ddb_entry_dma
, NULL
, NULL
,
529 &ddb_entry
->fw_ddb_device_state
, &conn_err
,
530 &ddb_entry
->tcp_source_port_num
,
531 &ddb_entry
->connection_id
) ==
533 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
534 "fw_ddb_index %d\n", ha
->host_no
, __func__
,
537 goto exit_update_ddb
;
540 status
= QLA_SUCCESS
;
541 ddb_entry
->options
= le16_to_cpu(fw_ddb_entry
->options
);
542 ddb_entry
->target_session_id
= le16_to_cpu(fw_ddb_entry
->tsid
);
543 ddb_entry
->task_mgmt_timeout
=
544 le16_to_cpu(fw_ddb_entry
->def_timeout
);
545 ddb_entry
->CmdSn
= 0;
546 ddb_entry
->exe_throttle
= le16_to_cpu(fw_ddb_entry
->exec_throttle
);
547 ddb_entry
->default_relogin_timeout
=
548 le16_to_cpu(fw_ddb_entry
->def_timeout
);
549 ddb_entry
->default_time2wait
= le16_to_cpu(fw_ddb_entry
->iscsi_def_time2wait
);
551 /* Update index in case it changed */
552 ddb_entry
->fw_ddb_index
= fw_ddb_index
;
553 ha
->fw_ddb_index_map
[fw_ddb_index
] = ddb_entry
;
555 ddb_entry
->port
= le16_to_cpu(fw_ddb_entry
->port
);
556 ddb_entry
->tpgt
= le32_to_cpu(fw_ddb_entry
->tgt_portal_grp
);
557 memcpy(ddb_entry
->isid
, fw_ddb_entry
->isid
, sizeof(ddb_entry
->isid
));
559 memcpy(&ddb_entry
->iscsi_name
[0], &fw_ddb_entry
->iscsi_name
[0],
560 min(sizeof(ddb_entry
->iscsi_name
),
561 sizeof(fw_ddb_entry
->iscsi_name
)));
562 memcpy(&ddb_entry
->ip_addr
[0], &fw_ddb_entry
->ip_addr
[0],
563 min(sizeof(ddb_entry
->ip_addr
), sizeof(fw_ddb_entry
->ip_addr
)));
565 ddb_entry
->iscsi_max_burst_len
= fw_ddb_entry
->iscsi_max_burst_len
;
566 ddb_entry
->iscsi_max_outsnd_r2t
= fw_ddb_entry
->iscsi_max_outsnd_r2t
;
567 ddb_entry
->iscsi_first_burst_len
= fw_ddb_entry
->iscsi_first_burst_len
;
568 ddb_entry
->iscsi_max_rcv_data_seg_len
=
569 fw_ddb_entry
->iscsi_max_rcv_data_seg_len
;
570 ddb_entry
->iscsi_max_snd_data_seg_len
=
571 fw_ddb_entry
->iscsi_max_snd_data_seg_len
;
573 if (ddb_entry
->options
& DDB_OPT_IPV6_DEVICE
) {
574 memcpy(&ddb_entry
->remote_ipv6_addr
,
575 fw_ddb_entry
->ip_addr
,
576 min(sizeof(ddb_entry
->remote_ipv6_addr
),
577 sizeof(fw_ddb_entry
->ip_addr
)));
578 memcpy(&ddb_entry
->link_local_ipv6_addr
,
579 fw_ddb_entry
->link_local_ipv6_addr
,
580 min(sizeof(ddb_entry
->link_local_ipv6_addr
),
581 sizeof(fw_ddb_entry
->link_local_ipv6_addr
)));
583 DEBUG2(dev_info(&ha
->pdev
->dev
, "%s: DDB[%d] osIdx = %d "
584 "State %04x ConnErr %08x IP %pI6 "
586 __func__
, fw_ddb_index
,
587 ddb_entry
->os_target_id
,
588 ddb_entry
->fw_ddb_device_state
,
589 conn_err
, fw_ddb_entry
->ip_addr
,
590 le16_to_cpu(fw_ddb_entry
->port
),
591 fw_ddb_entry
->iscsi_name
));
593 DEBUG2(dev_info(&ha
->pdev
->dev
, "%s: DDB[%d] osIdx = %d "
594 "State %04x ConnErr %08x IP %pI4 "
596 __func__
, fw_ddb_index
,
597 ddb_entry
->os_target_id
,
598 ddb_entry
->fw_ddb_device_state
,
599 conn_err
, fw_ddb_entry
->ip_addr
,
600 le16_to_cpu(fw_ddb_entry
->port
),
601 fw_ddb_entry
->iscsi_name
));
604 dma_free_coherent(&ha
->pdev
->dev
, sizeof(*fw_ddb_entry
),
605 fw_ddb_entry
, fw_ddb_entry_dma
);
611 * qla4xxx_alloc_ddb - allocate device database entry
612 * @ha: Pointer to host adapter structure.
613 * @fw_ddb_index: Firmware's device database index
615 * This routine allocates a ddb_entry, ititializes some values, and
616 * inserts it into the ddb list.
618 static struct ddb_entry
* qla4xxx_alloc_ddb(struct scsi_qla_host
*ha
,
619 uint32_t fw_ddb_index
)
621 struct ddb_entry
*ddb_entry
;
623 DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha
->host_no
,
624 __func__
, fw_ddb_index
));
626 ddb_entry
= qla4xxx_alloc_sess(ha
);
627 if (ddb_entry
== NULL
) {
628 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
629 "to add fw_ddb_index [%d]\n",
630 ha
->host_no
, __func__
, fw_ddb_index
));
634 ddb_entry
->fw_ddb_index
= fw_ddb_index
;
635 atomic_set(&ddb_entry
->port_down_timer
, ha
->port_down_retry_count
);
636 atomic_set(&ddb_entry
->retry_relogin_timer
, INVALID_ENTRY
);
637 atomic_set(&ddb_entry
->relogin_timer
, 0);
638 atomic_set(&ddb_entry
->relogin_retry_count
, 0);
639 atomic_set(&ddb_entry
->state
, DDB_STATE_ONLINE
);
640 list_add_tail(&ddb_entry
->list
, &ha
->ddb_list
);
641 ha
->fw_ddb_index_map
[fw_ddb_index
] = ddb_entry
;
648 * qla4_is_relogin_allowed - Are we allowed to login?
649 * @ha: Pointer to host adapter structure.
650 * @conn_err: Last connection error associated with the ddb
652 * This routine tests the given connection error to determine if
653 * we are allowed to login.
655 int qla4_is_relogin_allowed(struct scsi_qla_host
*ha
, uint32_t conn_err
)
657 uint32_t err_code
, login_rsp_sts_class
;
660 err_code
= ((conn_err
& 0x00ff0000) >> 16);
661 login_rsp_sts_class
= ((conn_err
& 0x0000ff00) >> 8);
662 if (err_code
== 0x1c || err_code
== 0x06) {
663 DEBUG2(dev_info(&ha
->pdev
->dev
,
664 ": conn_err=0x%08x, send target completed"
665 " or access denied failure\n", conn_err
));
668 if ((err_code
== 0x08) && (login_rsp_sts_class
== 0x02)) {
669 /* Login Response PDU returned an error.
670 Login Response Status in Error Code Detail
671 indicates login should not be retried.*/
672 DEBUG2(dev_info(&ha
->pdev
->dev
,
673 ": conn_err=0x%08x, do not retry relogin\n",
682 * qla4xxx_configure_ddbs - builds driver ddb list
683 * @ha: Pointer to host adapter structure.
685 * This routine searches for all valid firmware ddb entries and builds
686 * an internal ddb list. Ddbs that are considered valid are those with
687 * a device state of SESSION_ACTIVE.
689 static int qla4xxx_build_ddb_list(struct scsi_qla_host
*ha
)
691 int status
= QLA_SUCCESS
;
692 uint32_t fw_ddb_index
= 0;
693 uint32_t next_fw_ddb_index
= 0;
696 struct ddb_entry
*ddb_entry
;
697 struct dev_db_entry
*fw_ddb_entry
= NULL
;
698 dma_addr_t fw_ddb_entry_dma
;
699 uint32_t ipv6_device
;
702 fw_ddb_entry
= dma_alloc_coherent(&ha
->pdev
->dev
, sizeof(*fw_ddb_entry
),
703 &fw_ddb_entry_dma
, GFP_KERNEL
);
704 if (fw_ddb_entry
== NULL
) {
705 DEBUG2(dev_info(&ha
->pdev
->dev
, "%s: DMA alloc failed\n",
710 dev_info(&ha
->pdev
->dev
, "Initializing DDBs ...\n");
711 for (fw_ddb_index
= 0; fw_ddb_index
< MAX_DDB_ENTRIES
;
712 fw_ddb_index
= next_fw_ddb_index
) {
713 /* First, let's see if a device exists here */
714 if (qla4xxx_get_fwddb_entry(ha
, fw_ddb_index
, fw_ddb_entry
,
715 0, NULL
, &next_fw_ddb_index
,
716 &ddb_state
, &conn_err
,
719 DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
720 "fw_ddb_index %d failed", ha
->host_no
,
721 __func__
, fw_ddb_index
));
725 DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, "
726 "next_fw_ddb_index=%d.\n", ha
->host_no
, __func__
,
727 fw_ddb_index
, ddb_state
, next_fw_ddb_index
));
729 /* Issue relogin, if necessary. */
730 if (ddb_state
== DDB_DS_SESSION_FAILED
||
731 ddb_state
== DDB_DS_NO_CONNECTION_ACTIVE
) {
732 /* Try and login to device */
733 DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
734 ha
->host_no
, __func__
, fw_ddb_index
));
735 ipv6_device
= le16_to_cpu(fw_ddb_entry
->options
) &
737 if (qla4_is_relogin_allowed(ha
, conn_err
) &&
739 *((uint32_t *)fw_ddb_entry
->ip_addr
))
741 qla4xxx_set_ddb_entry(ha
, fw_ddb_index
, 0);
742 if (qla4xxx_get_fwddb_entry(ha
, fw_ddb_index
,
745 &ddb_state
, &conn_err
,
748 DEBUG2(printk("scsi%ld: %s:"
749 "get_ddb_entry %d failed\n",
751 __func__
, fw_ddb_index
));
757 if (ddb_state
!= DDB_DS_SESSION_ACTIVE
)
760 * if fw_ddb with session active state found,
763 DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n",
764 ha
->host_no
, __func__
, fw_ddb_index
));
766 /* Add DDB to internal our ddb list. */
767 ddb_entry
= qla4xxx_get_ddb_entry(ha
, fw_ddb_index
, &new_tgt
);
768 if (ddb_entry
== NULL
) {
769 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
770 "for device at fw_ddb_index %d\n",
771 ha
->host_no
, __func__
, fw_ddb_index
));
774 /* Fill in the device structure */
775 if (qla4xxx_update_ddb_entry(ha
, ddb_entry
, fw_ddb_index
) ==
777 ha
->fw_ddb_index_map
[fw_ddb_index
] =
778 (struct ddb_entry
*)INVALID_ENTRY
;
781 DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed "
782 "for fw_ddb_index %d.\n",
783 ha
->host_no
, __func__
, fw_ddb_index
));
788 /* We know we've reached the last device when
789 * next_fw_ddb_index is 0 */
790 if (next_fw_ddb_index
== 0)
794 dev_info(&ha
->pdev
->dev
, "DDB list done..\n");
799 struct qla4_relog_scan
{
802 uint32_t fw_ddb_index
;
803 uint32_t next_fw_ddb_index
;
804 uint32_t fw_ddb_device_state
;
807 static int qla4_test_rdy(struct scsi_qla_host
*ha
, struct qla4_relog_scan
*rs
)
809 struct ddb_entry
*ddb_entry
;
811 if (qla4_is_relogin_allowed(ha
, rs
->conn_err
)) {
812 /* We either have a device that is in
813 * the process of relogging in or a
814 * device that is waiting to be
818 ddb_entry
= qla4xxx_lookup_ddb_by_fw_index(ha
,
820 if (ddb_entry
== NULL
)
823 if (ddb_entry
->dev_scan_wait_to_start_relogin
!= 0
824 && time_after_eq(jiffies
,
826 dev_scan_wait_to_start_relogin
))
828 ddb_entry
->dev_scan_wait_to_start_relogin
= 0;
829 qla4xxx_set_ddb_entry(ha
, rs
->fw_ddb_index
, 0);
835 static int qla4_scan_for_relogin(struct scsi_qla_host
*ha
,
836 struct qla4_relog_scan
*rs
)
841 * ----------------- */
842 for (rs
->fw_ddb_index
= 0; rs
->fw_ddb_index
< MAX_DDB_ENTRIES
;
843 rs
->fw_ddb_index
= rs
->next_fw_ddb_index
) {
844 if (qla4xxx_get_fwddb_entry(ha
, rs
->fw_ddb_index
, NULL
, 0,
845 NULL
, &rs
->next_fw_ddb_index
,
846 &rs
->fw_ddb_device_state
,
847 &rs
->conn_err
, NULL
, NULL
)
851 if (rs
->fw_ddb_device_state
== DDB_DS_LOGIN_IN_PROCESS
)
854 if (rs
->fw_ddb_device_state
== DDB_DS_SESSION_FAILED
||
855 rs
->fw_ddb_device_state
== DDB_DS_NO_CONNECTION_ACTIVE
) {
856 error
= qla4_test_rdy(ha
, rs
);
861 /* We know we've reached the last device when
862 * next_fw_ddb_index is 0 */
863 if (rs
->next_fw_ddb_index
== 0)
870 * qla4xxx_devices_ready - wait for target devices to be logged in
871 * @ha: pointer to adapter structure
873 * This routine waits up to ql4xdiscoverywait seconds
874 * F/W database during driver load time.
876 static int qla4xxx_devices_ready(struct scsi_qla_host
*ha
)
879 unsigned long discovery_wtime
;
880 struct qla4_relog_scan rs
;
882 discovery_wtime
= jiffies
+ (ql4xdiscoverywait
* HZ
);
884 DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait
));
887 qla4xxx_get_firmware_state(ha
);
888 if (test_and_clear_bit(DPC_AEN
, &ha
->dpc_flags
)) {
889 /* Set time-between-relogin timer */
890 qla4xxx_process_aen(ha
, RELOGIN_DDB_CHANGED_AENS
);
893 /* if no relogins active or needed, halt discvery wait */
896 error
= qla4_scan_for_relogin(ha
, &rs
);
899 DEBUG2(printk("scsi%ld: %s: Delay halted. Devices "
900 "Ready.\n", ha
->host_no
, __func__
));
905 } while (!time_after_eq(jiffies
, discovery_wtime
));
907 DEBUG3(qla4xxx_get_conn_event_log(ha
));
912 static void qla4xxx_flush_AENS(struct scsi_qla_host
*ha
)
916 /* Flush the 0x8014 AEN from the firmware as a result of
917 * Auto connect. We are basically doing get_firmware_ddb()
918 * to determine whether we need to log back in or not.
919 * Trying to do a set ddb before we have processed 0x8014
920 * will result in another set_ddb() for the same ddb. In other
921 * words there will be stale entries in the aen_q.
923 wtime
= jiffies
+ (2 * HZ
);
925 if (qla4xxx_get_firmware_state(ha
) == QLA_SUCCESS
)
926 if (ha
->firmware_state
& (BIT_2
| BIT_0
))
929 if (test_and_clear_bit(DPC_AEN
, &ha
->dpc_flags
))
930 qla4xxx_process_aen(ha
, FLUSH_DDB_CHANGED_AENS
);
933 } while (!time_after_eq(jiffies
, wtime
));
937 static int qla4xxx_initialize_ddb_list(struct scsi_qla_host
*ha
)
939 uint16_t fw_ddb_index
;
940 int status
= QLA_SUCCESS
;
942 /* free the ddb list if is not empty */
943 if (!list_empty(&ha
->ddb_list
))
944 qla4xxx_free_ddb_list(ha
);
946 for (fw_ddb_index
= 0; fw_ddb_index
< MAX_DDB_ENTRIES
; fw_ddb_index
++)
947 ha
->fw_ddb_index_map
[fw_ddb_index
] =
948 (struct ddb_entry
*)INVALID_ENTRY
;
952 qla4xxx_flush_AENS(ha
);
955 * First perform device discovery for active
956 * fw ddb indexes and build
959 if ((status
= qla4xxx_build_ddb_list(ha
)) == QLA_ERROR
)
962 /* Wait for an AEN */
963 qla4xxx_devices_ready(ha
);
966 * Targets can come online after the inital discovery, so processing
967 * the aens here will catch them.
969 if (test_and_clear_bit(DPC_AEN
, &ha
->dpc_flags
))
970 qla4xxx_process_aen(ha
, PROCESS_ALL_AENS
);
976 * qla4xxx_update_ddb_list - update the driver ddb list
977 * @ha: pointer to host adapter structure.
979 * This routine obtains device information from the F/W database after
980 * firmware or adapter resets. The device table is preserved.
982 int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host
*ha
)
984 int status
= QLA_SUCCESS
;
985 struct ddb_entry
*ddb_entry
, *detemp
;
987 /* Update the device information for all devices. */
988 list_for_each_entry_safe(ddb_entry
, detemp
, &ha
->ddb_list
, list
) {
989 qla4xxx_update_ddb_entry(ha
, ddb_entry
,
990 ddb_entry
->fw_ddb_index
);
991 if (ddb_entry
->fw_ddb_device_state
== DDB_DS_SESSION_ACTIVE
) {
992 atomic_set(&ddb_entry
->state
, DDB_STATE_ONLINE
);
993 DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked "
994 "ONLINE\n", ha
->host_no
, __func__
,
995 ddb_entry
->fw_ddb_index
));
996 } else if (atomic_read(&ddb_entry
->state
) == DDB_STATE_ONLINE
)
997 qla4xxx_mark_device_missing(ha
, ddb_entry
);
1003 * qla4xxx_relogin_device - re-establish session
1004 * @ha: Pointer to host adapter structure.
1005 * @ddb_entry: Pointer to device database entry
1007 * This routine does a session relogin with the specified device.
1008 * The ddb entry must be assigned prior to making this call.
1010 int qla4xxx_relogin_device(struct scsi_qla_host
*ha
,
1011 struct ddb_entry
* ddb_entry
)
1013 uint16_t relogin_timer
;
1015 relogin_timer
= max(ddb_entry
->default_relogin_timeout
,
1016 (uint16_t)RELOGIN_TOV
);
1017 atomic_set(&ddb_entry
->relogin_timer
, relogin_timer
);
1019 DEBUG2(printk("scsi%ld: Relogin index [%d]. TOV=%d\n", ha
->host_no
,
1020 ddb_entry
->fw_ddb_index
, relogin_timer
));
1022 qla4xxx_set_ddb_entry(ha
, ddb_entry
->fw_ddb_index
, 0);
1027 static int qla4xxx_config_nvram(struct scsi_qla_host
*ha
)
1029 unsigned long flags
;
1030 union external_hw_config_reg extHwConfig
;
1032 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha
->host_no
,
1034 if (ql4xxx_lock_flash(ha
) != QLA_SUCCESS
)
1036 if (ql4xxx_lock_nvram(ha
) != QLA_SUCCESS
) {
1037 ql4xxx_unlock_flash(ha
);
1041 /* Get EEPRom Parameters from NVRAM and validate */
1042 dev_info(&ha
->pdev
->dev
, "Configuring NVRAM ...\n");
1043 if (qla4xxx_is_nvram_configuration_valid(ha
) == QLA_SUCCESS
) {
1044 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1045 extHwConfig
.Asuint32_t
=
1046 rd_nvram_word(ha
, eeprom_ext_hw_conf_offset(ha
));
1047 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1049 dev_warn(&ha
->pdev
->dev
,
1050 "scsi%ld: %s: EEProm checksum invalid. "
1051 "Please update your EEPROM\n", ha
->host_no
,
1054 /* Attempt to set defaults */
1056 extHwConfig
.Asuint32_t
= 0x1912;
1057 else if (is_qla4022(ha
) | is_qla4032(ha
))
1058 extHwConfig
.Asuint32_t
= 0x0023;
1062 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
1063 ha
->host_no
, __func__
, extHwConfig
.Asuint32_t
));
1065 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1066 writel((0xFFFF << 16) | extHwConfig
.Asuint32_t
, isp_ext_hw_conf(ha
));
1067 readl(isp_ext_hw_conf(ha
));
1068 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1070 ql4xxx_unlock_nvram(ha
);
1071 ql4xxx_unlock_flash(ha
);
1076 static void qla4x00_pci_config(struct scsi_qla_host
*ha
)
1081 dev_info(&ha
->pdev
->dev
, "Configuring PCI space...\n");
1083 pci_set_master(ha
->pdev
);
1084 status
= pci_set_mwi(ha
->pdev
);
1086 * We want to respect framework's setting of PCI configuration space
1087 * command register and also want to make sure that all bits of
1088 * interest to us are properly set in command register.
1090 pci_read_config_word(ha
->pdev
, PCI_COMMAND
, &w
);
1091 w
|= PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
;
1092 w
&= ~PCI_COMMAND_INTX_DISABLE
;
1093 pci_write_config_word(ha
->pdev
, PCI_COMMAND
, w
);
1096 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host
*ha
)
1098 int status
= QLA_ERROR
;
1099 unsigned long max_wait_time
;
1100 unsigned long flags
;
1101 uint32_t mbox_status
;
1103 dev_info(&ha
->pdev
->dev
, "Starting firmware ...\n");
1106 * Start firmware from flash ROM
1108 * WORKAROUND: Stuff a non-constant value that the firmware can
1109 * use as a seed for a random number generator in MB7 prior to
1110 * setting BOOT_ENABLE. Fixes problem where the TCP
1111 * connections use the same TCP ports after each reboot,
1112 * causing some connections to not get re-established.
1114 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
1115 ha
->host_no
, __func__
));
1117 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1118 writel(jiffies
, &ha
->reg
->mailbox
[7]);
1119 if (is_qla4022(ha
) | is_qla4032(ha
))
1120 writel(set_rmask(NVR_WRITE_ENABLE
),
1121 &ha
->reg
->u1
.isp4022
.nvram
);
1123 writel(2, &ha
->reg
->mailbox
[6]);
1124 readl(&ha
->reg
->mailbox
[6]);
1126 writel(set_rmask(CSR_BOOT_ENABLE
), &ha
->reg
->ctrl_status
);
1127 readl(&ha
->reg
->ctrl_status
);
1128 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1130 /* Wait for firmware to come UP. */
1131 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: Wait up to %d seconds for "
1132 "boot firmware to complete...\n",
1133 ha
->host_no
, __func__
, FIRMWARE_UP_TOV
));
1134 max_wait_time
= jiffies
+ (FIRMWARE_UP_TOV
* HZ
);
1136 uint32_t ctrl_status
;
1138 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1139 ctrl_status
= readw(&ha
->reg
->ctrl_status
);
1140 mbox_status
= readw(&ha
->reg
->mailbox
[0]);
1141 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1143 if (ctrl_status
& set_rmask(CSR_SCSI_PROCESSOR_INTR
))
1145 if (mbox_status
== MBOX_STS_COMMAND_COMPLETE
)
1148 DEBUG2(printk(KERN_INFO
"scsi%ld: %s: Waiting for boot "
1149 "firmware to complete... ctrl_sts=0x%x\n",
1150 ha
->host_no
, __func__
, ctrl_status
));
1152 msleep_interruptible(250);
1153 } while (!time_after_eq(jiffies
, max_wait_time
));
1155 if (mbox_status
== MBOX_STS_COMMAND_COMPLETE
) {
1156 DEBUG(printk(KERN_INFO
"scsi%ld: %s: Firmware has started\n",
1157 ha
->host_no
, __func__
));
1159 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1160 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR
),
1161 &ha
->reg
->ctrl_status
);
1162 readl(&ha
->reg
->ctrl_status
);
1163 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1165 status
= QLA_SUCCESS
;
1167 printk(KERN_INFO
"scsi%ld: %s: Boot firmware failed "
1168 "- mbox status 0x%x\n", ha
->host_no
, __func__
,
1175 int ql4xxx_lock_drvr_wait(struct scsi_qla_host
*a
)
1177 #define QL4_LOCK_DRVR_WAIT 60
1178 #define QL4_LOCK_DRVR_SLEEP 1
1180 int drvr_wait
= QL4_LOCK_DRVR_WAIT
;
1182 if (ql4xxx_lock_drvr(a
) == 0) {
1183 ssleep(QL4_LOCK_DRVR_SLEEP
);
1185 DEBUG2(printk("scsi%ld: %s: Waiting for "
1186 "Global Init Semaphore(%d)...\n",
1188 __func__
, drvr_wait
));
1190 drvr_wait
-= QL4_LOCK_DRVR_SLEEP
;
1192 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
1193 "acquired\n", a
->host_no
, __func__
));
1201 * qla4xxx_start_firmware - starts qla4xxx firmware
1202 * @ha: Pointer to host adapter structure.
1204 * This routine performs the necessary steps to start the firmware for
1205 * the QLA4010 adapter.
1207 static int qla4xxx_start_firmware(struct scsi_qla_host
*ha
)
1209 unsigned long flags
= 0;
1210 uint32_t mbox_status
;
1211 int status
= QLA_ERROR
;
1213 int config_chip
= 0;
1215 if (is_qla4022(ha
) | is_qla4032(ha
))
1216 ql4xxx_set_mac_number(ha
);
1218 if (ql4xxx_lock_drvr_wait(ha
) != QLA_SUCCESS
)
1221 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1223 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha
->host_no
,
1224 __func__
, readw(isp_port_ctrl(ha
))));
1225 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha
->host_no
,
1226 __func__
, readw(isp_port_status(ha
))));
1228 /* Is Hardware already initialized? */
1229 if ((readw(isp_port_ctrl(ha
)) & 0x8000) != 0) {
1230 DEBUG(printk("scsi%ld: %s: Hardware has already been "
1231 "initialized\n", ha
->host_no
, __func__
));
1233 /* Receive firmware boot acknowledgement */
1234 mbox_status
= readw(&ha
->reg
->mailbox
[0]);
1236 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
1237 "0x%x\n", ha
->host_no
, __func__
, mbox_status
));
1239 /* Is firmware already booted? */
1240 if (mbox_status
== 0) {
1241 /* F/W not running, must be config by net driver */
1245 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR
),
1246 &ha
->reg
->ctrl_status
);
1247 readl(&ha
->reg
->ctrl_status
);
1248 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1249 if (qla4xxx_get_firmware_state(ha
) == QLA_SUCCESS
) {
1250 DEBUG2(printk("scsi%ld: %s: Get firmware "
1251 "state -- state = 0x%x\n",
1253 __func__
, ha
->firmware_state
));
1254 /* F/W is running */
1255 if (ha
->firmware_state
&
1256 FW_STATE_CONFIG_WAIT
) {
1257 DEBUG2(printk("scsi%ld: %s: Firmware "
1258 "in known state -- "
1260 "boot, state = 0x%x\n",
1261 ha
->host_no
, __func__
,
1262 ha
->firmware_state
));
1267 DEBUG2(printk("scsi%ld: %s: Firmware in "
1268 "unknown state -- resetting,"
1270 "0x%x\n", ha
->host_no
, __func__
,
1271 ha
->firmware_state
));
1273 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1276 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
1277 "started - resetting\n", ha
->host_no
, __func__
));
1279 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1281 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
1282 ha
->host_no
, __func__
, soft_reset
, config_chip
));
1284 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha
->host_no
,
1286 status
= qla4xxx_soft_reset(ha
);
1287 if (status
== QLA_ERROR
) {
1288 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
1289 ha
->host_no
, __func__
));
1290 ql4xxx_unlock_drvr(ha
);
1295 /* Reset clears the semaphore, so acquire again */
1296 if (ql4xxx_lock_drvr_wait(ha
) != QLA_SUCCESS
)
1301 if ((status
= qla4xxx_config_nvram(ha
)) == QLA_SUCCESS
)
1302 status
= qla4xxx_start_firmware_from_flash(ha
);
1305 ql4xxx_unlock_drvr(ha
);
1306 if (status
== QLA_SUCCESS
) {
1307 qla4xxx_get_fw_version(ha
);
1308 if (test_and_clear_bit(AF_GET_CRASH_RECORD
, &ha
->flags
))
1309 qla4xxx_get_crash_record(ha
);
1311 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
1312 ha
->host_no
, __func__
));
1319 * qla4xxx_initialize_adapter - initiailizes hba
1320 * @ha: Pointer to host adapter structure.
1321 * @renew_ddb_list: Indicates what to do with the adapter's ddb list
1322 * after adapter recovery has completed.
1323 * 0=preserve ddb list, 1=destroy and rebuild ddb list
1325 * This routine parforms all of the steps necessary to initialize the adapter.
1328 int qla4xxx_initialize_adapter(struct scsi_qla_host
*ha
,
1329 uint8_t renew_ddb_list
)
1331 int status
= QLA_ERROR
;
1332 int8_t ip_address
[IP_ADDR_LEN
] = {0} ;
1334 clear_bit(AF_ONLINE
, &ha
->flags
);
1335 ha
->eeprom_cmd_data
= 0;
1337 qla4x00_pci_config(ha
);
1339 qla4xxx_disable_intrs(ha
);
1341 /* Initialize the Host adapter request/response queues and firmware */
1342 if (qla4xxx_start_firmware(ha
) == QLA_ERROR
)
1345 if (qla4xxx_validate_mac_address(ha
) == QLA_ERROR
)
1348 if (qla4xxx_init_local_data(ha
) == QLA_ERROR
)
1351 status
= qla4xxx_init_firmware(ha
);
1352 if (status
== QLA_ERROR
)
1356 * FW is waiting to get an IP address from DHCP server: Skip building
1357 * the ddb_list and wait for DHCP lease acquired aen to come in
1358 * followed by 0x8014 aen" to trigger the tgt discovery process.
1360 if (ha
->firmware_state
& FW_STATE_CONFIGURING_IP
)
1361 goto exit_init_online
;
1363 /* Skip device discovery if ip and subnet is zero */
1364 if (memcmp(ha
->ip_address
, ip_address
, IP_ADDR_LEN
) == 0 ||
1365 memcmp(ha
->subnet_mask
, ip_address
, IP_ADDR_LEN
) == 0)
1366 goto exit_init_online
;
1368 if (renew_ddb_list
== PRESERVE_DDB_LIST
) {
1370 * We want to preserve lun states (i.e. suspended, etc.)
1371 * for recovery initiated by the driver. So just update
1372 * the device states for the existing ddb_list.
1374 qla4xxx_reinitialize_ddb_list(ha
);
1375 } else if (renew_ddb_list
== REBUILD_DDB_LIST
) {
1377 * We want to build the ddb_list from scratch during
1378 * driver initialization and recovery initiated by the
1379 * INT_HBA_RESET IOCTL.
1381 status
= qla4xxx_initialize_ddb_list(ha
);
1382 if (status
== QLA_ERROR
) {
1383 DEBUG2(printk("%s(%ld) Error occurred during build"
1384 "ddb list\n", __func__
, ha
->host_no
));
1389 if (!ha
->tot_ddbs
) {
1390 DEBUG2(printk("scsi%ld: Failed to initialize devices or none "
1391 "present in Firmware device database\n",
1396 set_bit(AF_ONLINE
, &ha
->flags
);
1402 * qla4xxx_add_device_dynamically - ddb addition due to an AEN
1403 * @ha: Pointer to host adapter structure.
1404 * @fw_ddb_index: Firmware's device database index
1406 * This routine processes adds a device as a result of an 8014h AEN.
1408 static void qla4xxx_add_device_dynamically(struct scsi_qla_host
*ha
,
1409 uint32_t fw_ddb_index
)
1411 struct ddb_entry
* ddb_entry
;
1414 /* First allocate a device structure */
1415 ddb_entry
= qla4xxx_get_ddb_entry(ha
, fw_ddb_index
, &new_tgt
);
1416 if (ddb_entry
== NULL
) {
1417 DEBUG2(printk(KERN_WARNING
1418 "scsi%ld: Unable to allocate memory to add "
1419 "fw_ddb_index %d\n", ha
->host_no
, fw_ddb_index
));
1423 if (!new_tgt
&& (ddb_entry
->fw_ddb_index
!= fw_ddb_index
)) {
1424 /* Target has been bound to a new fw_ddb_index */
1425 qla4xxx_free_ddb(ha
, ddb_entry
);
1426 ddb_entry
= qla4xxx_alloc_ddb(ha
, fw_ddb_index
);
1427 if (ddb_entry
== NULL
) {
1428 DEBUG2(printk(KERN_WARNING
1429 "scsi%ld: Unable to allocate memory"
1430 " to add fw_ddb_index %d\n",
1431 ha
->host_no
, fw_ddb_index
));
1435 if (qla4xxx_update_ddb_entry(ha
, ddb_entry
, fw_ddb_index
) ==
1437 ha
->fw_ddb_index_map
[fw_ddb_index
] =
1438 (struct ddb_entry
*)INVALID_ENTRY
;
1439 DEBUG2(printk(KERN_WARNING
1440 "scsi%ld: failed to add new device at index "
1441 "[%d]\n Unable to retrieve fw ddb entry\n",
1442 ha
->host_no
, fw_ddb_index
));
1443 qla4xxx_free_ddb(ha
, ddb_entry
);
1447 if (qla4xxx_add_sess(ddb_entry
)) {
1448 DEBUG2(printk(KERN_WARNING
1449 "scsi%ld: failed to add new device at index "
1450 "[%d]\n Unable to add connection and session\n",
1451 ha
->host_no
, fw_ddb_index
));
1452 qla4xxx_free_ddb(ha
, ddb_entry
);
1457 * qla4xxx_process_ddb_changed - process ddb state change
1458 * @ha - Pointer to host adapter structure.
1459 * @fw_ddb_index - Firmware's device database index
1460 * @state - Device state
1462 * This routine processes a Decive Database Changed AEN Event.
1464 int qla4xxx_process_ddb_changed(struct scsi_qla_host
*ha
, uint32_t fw_ddb_index
,
1465 uint32_t state
, uint32_t conn_err
)
1467 struct ddb_entry
* ddb_entry
;
1468 uint32_t old_fw_ddb_device_state
;
1470 /* check for out of range index */
1471 if (fw_ddb_index
>= MAX_DDB_ENTRIES
)
1474 /* Get the corresponging ddb entry */
1475 ddb_entry
= qla4xxx_lookup_ddb_by_fw_index(ha
, fw_ddb_index
);
1476 /* Device does not currently exist in our database. */
1477 if (ddb_entry
== NULL
) {
1478 if (state
== DDB_DS_SESSION_ACTIVE
)
1479 qla4xxx_add_device_dynamically(ha
, fw_ddb_index
);
1483 /* Device already exists in our database. */
1484 old_fw_ddb_device_state
= ddb_entry
->fw_ddb_device_state
;
1485 DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
1486 "index [%d]\n", ha
->host_no
, __func__
,
1487 ddb_entry
->fw_ddb_device_state
, state
, fw_ddb_index
));
1488 if (old_fw_ddb_device_state
== state
&&
1489 state
== DDB_DS_SESSION_ACTIVE
) {
1490 /* Do nothing, state not changed. */
1494 ddb_entry
->fw_ddb_device_state
= state
;
1495 /* Device is back online. */
1496 if (ddb_entry
->fw_ddb_device_state
== DDB_DS_SESSION_ACTIVE
) {
1497 atomic_set(&ddb_entry
->state
, DDB_STATE_ONLINE
);
1498 atomic_set(&ddb_entry
->port_down_timer
,
1499 ha
->port_down_retry_count
);
1500 atomic_set(&ddb_entry
->relogin_retry_count
, 0);
1501 atomic_set(&ddb_entry
->relogin_timer
, 0);
1502 clear_bit(DF_RELOGIN
, &ddb_entry
->flags
);
1503 clear_bit(DF_NO_RELOGIN
, &ddb_entry
->flags
);
1504 iscsi_unblock_session(ddb_entry
->sess
);
1505 iscsi_session_event(ddb_entry
->sess
,
1506 ISCSI_KEVENT_CREATE_SESSION
);
1508 * Change the lun state to READY in case the lun TIMEOUT before
1509 * the device came back.
1512 /* Device went away, mark device missing */
1513 if (atomic_read(&ddb_entry
->state
) == DDB_STATE_ONLINE
) {
1514 DEBUG2(dev_info(&ha
->pdev
->dev
, "%s mark missing "
1515 "ddb_entry 0x%p sess 0x%p conn 0x%p\n",
1516 __func__
, ddb_entry
,
1517 ddb_entry
->sess
, ddb_entry
->conn
));
1518 qla4xxx_mark_device_missing(ha
, ddb_entry
);
1522 * Relogin if device state changed to a not active state.
1523 * However, do not relogin if a RELOGIN is in process, or
1524 * we are not allowed to relogin to this DDB.
1526 if (ddb_entry
->fw_ddb_device_state
== DDB_DS_SESSION_FAILED
&&
1527 !test_bit(DF_RELOGIN
, &ddb_entry
->flags
) &&
1528 !test_bit(DF_NO_RELOGIN
, &ddb_entry
->flags
) &&
1529 qla4_is_relogin_allowed(ha
, conn_err
)) {
1531 * This triggers a relogin. After the relogin_timer
1532 * expires, the relogin gets scheduled. We must wait a
1533 * minimum amount of time since receiving an 0x8014 AEN
1534 * with failed device_state or a logout response before
1535 * we can issue another relogin.
1537 /* Firmware pads this timeout: (time2wait +1).
1538 * Driver retry to login should be longer than F/W.
1539 * Otherwise F/W will fail
1540 * set_ddb() mbx cmd with 0x4005 since it still
1541 * counting down its time2wait.
1543 atomic_set(&ddb_entry
->relogin_timer
, 0);
1544 atomic_set(&ddb_entry
->retry_relogin_timer
,
1545 ddb_entry
->default_time2wait
+ 4);