projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[SCSI] qla4xxx: Added support for ISP82XX
[deliverable/linux.git] / drivers / scsi / qla4xxx / ql4_init.c
CommitLineData
afaf5a2d
DS		 1/*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2006 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7
26974789 8#include <scsi/iscsi_if.h>
afaf5a2d 9#include "ql4_def.h"
92b72736
DS		 10#include "ql4_glbl.h"
11#include "ql4_dbg.h"
12#include "ql4_inline.h"
afaf5a2d 13
f4f5df23
VC		 14static struct ddb_entry *qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
15 uint32_t fw_ddb_index);
afaf5a2d
DS		 16
17static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
18{
19 uint32_t value;
20 uint8_t func_number;
21 unsigned long flags;
22
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);
27
28 func_number = (uint8_t) ((value >> 4) & 0x30);
29 switch (value & ISP_CONTROL_FN_MASK) {
30 case ISP_CONTROL_FN0_SCSI:
31 ha->mac_index = 1;
32 break;
33 case ISP_CONTROL_FN1_SCSI:
34 ha->mac_index = 3;
35 break;
36 default:
37 DEBUG2(printk("scsi%ld: %s: Invalid function number, "
38 "ispControlStatus = 0x%x\n", ha->host_no,
39 __func__, value));
40 break;
41 }
42 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
43 ha->mac_index));
44}
45
46/**
47 * qla4xxx_free_ddb - deallocate ddb
48 * @ha: pointer to host adapter structure.
49 * @ddb_entry: pointer to device database entry
50 *
51 * This routine deallocates and unlinks the specified ddb_entry from the
52 * adapter's
53 **/
f4f5df23
VC		 54void qla4xxx_free_ddb(struct scsi_qla_host *ha,
55 struct ddb_entry *ddb_entry)
afaf5a2d
DS		 56{
57 /* Remove device entry from list */
58 list_del_init(&ddb_entry->list);
59
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;
63 ha->tot_ddbs--;
64
65 /* Free memory and scsi-ml struct for device entry */
66 qla4xxx_destroy_sess(ddb_entry);
67}
68
69/**
70 * qla4xxx_free_ddb_list - deallocate all ddbs
71 * @ha: pointer to host adapter structure.
72 *
73 * This routine deallocates and removes all devices on the sppecified adapter.
74 **/
75void qla4xxx_free_ddb_list(struct scsi_qla_host *ha)
76{
77 struct list_head *ptr;
78 struct ddb_entry *ddb_entry;
79
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);
85 }
86}
87
f4f5df23
VC		 88/**
89 * qla4xxx_init_response_q_entries() - Initializes response queue entries.
90 * @ha: HA context
91 *
92 * Beginning of request ring has initialization control block already built
93 * by nvram config routine.
94 **/
95static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)
96{
97 uint16_t cnt;
98 struct response *pkt;
99
100 pkt = (struct response *)ha->response_ptr;
101 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {
102 pkt->signature = RESPONSE_PROCESSED;
103 pkt++;
104 }
105}
106
afaf5a2d
DS		 107/**
108 * qla4xxx_init_rings - initialize hw queues
109 * @ha: pointer to host adapter structure.
110 *
111 * This routine initializes the internal queues for the specified adapter.
112 * The QLA4010 requires us to restart the queues at index 0.
113 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
114 **/
115int qla4xxx_init_rings(struct scsi_qla_host *ha)
116{
117 unsigned long flags = 0;
118
119 /* Initialize request queue. */
120 spin_lock_irqsave(&ha->hardware_lock, flags);
121 ha->request_out = 0;
122 ha->request_in = 0;
123 ha->request_ptr = &ha->request_ring[ha->request_in];
124 ha->req_q_count = REQUEST_QUEUE_DEPTH;
125
126 /* Initialize response queue. */
127 ha->response_in = 0;
128 ha->response_out = 0;
129 ha->response_ptr = &ha->response_ring[ha->response_out];
130
f4f5df23
VC		 131 if (is_qla8022(ha)) {
132 writel(0,
133 (unsigned long __iomem *)&ha->qla4_8xxx_reg->req_q_out);
134 writel(0,
135 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_in);
136 writel(0,
137 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_out);
138 } else {
139 /*
140 * Initialize DMA Shadow registers. The firmware is really
141 * supposed to take care of this, but on some uniprocessor
142 * systems, the shadow registers aren't cleared-- causing
143 * the interrupt_handler to think there are responses to be
144 * processed when there aren't.
145 */
146 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
147 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
148 wmb();
afaf5a2d 149
f4f5df23
VC		 150 writel(0, &ha->reg->req_q_in);
151 writel(0, &ha->reg->rsp_q_out);
152 readl(&ha->reg->rsp_q_out);
153 }
154
155 qla4xxx_init_response_q_entries(ha);
afaf5a2d
DS		 156
157 spin_unlock_irqrestore(&ha->hardware_lock, flags);
158
159 return QLA_SUCCESS;
160}
161
162/**
f4f5df23 163 * qla4xxx_get_sys_info - validate adapter MAC address(es)
afaf5a2d
DS		 164 * @ha: pointer to host adapter structure.
165 *
166 **/
f4f5df23 167int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
afaf5a2d
DS		 168{
169 struct flash_sys_info *sys_info;
170 dma_addr_t sys_info_dma;
171 int status = QLA_ERROR;
172
173 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
174 &sys_info_dma, GFP_KERNEL);
175 if (sys_info == NULL) {
176 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
177 ha->host_no, __func__));
178
f4f5df23 179 goto exit_get_sys_info_no_free;
afaf5a2d
DS		 180 }
181 memset(sys_info, 0, sizeof(*sys_info));
182
183 /* Get flash sys info */
184 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
185 sizeof(*sys_info)) != QLA_SUCCESS) {
186 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
187 "failed\n", ha->host_no, __func__));
188
f4f5df23 189 goto exit_get_sys_info;
afaf5a2d
DS		 190 }
191
192 /* Save M.A.C. address & serial_number */
193 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
194 min(sizeof(ha->my_mac),
195 sizeof(sys_info->physAddr[0].address)));
196 memcpy(ha->serial_number, &sys_info->acSerialNumber,
197 min(sizeof(ha->serial_number),
198 sizeof(sys_info->acSerialNumber)));
199
200 status = QLA_SUCCESS;
201
f4f5df23 202exit_get_sys_info:
afaf5a2d
DS		 203 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
204 sys_info_dma);
205
f4f5df23 206exit_get_sys_info_no_free:
afaf5a2d
DS		 207 return status;
208}
209
210/**
211 * qla4xxx_init_local_data - initialize adapter specific local data
212 * @ha: pointer to host adapter structure.
213 *
214 **/
215static int qla4xxx_init_local_data(struct scsi_qla_host *ha)
216{
217 /* Initilize aen queue */
218 ha->aen_q_count = MAX_AEN_ENTRIES;
219
220 return qla4xxx_get_firmware_status(ha);
221}
222
2a49a78e
VC		 223static uint8_t
224qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
225{
226 uint8_t ipv4_wait = 0;
227 uint8_t ipv6_wait = 0;
228 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
229
230 /* If both IPv4 & IPv6 are enabled, possibly only one
231 * IP address may be acquired, so check to see if we
232 * need to wait for another */
233 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
234 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
235 ((ha->addl_fw_state &
236 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
237 ipv4_wait = 1;
238 }
239 if (((ha->ipv6_addl_options &
240 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
241 ((ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) ||
242 (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) ||
243 (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING))) {
244
245 ipv6_wait = 1;
246
247 if ((ha->ipv6_link_local_state ==
248 IP_ADDRSTATE_PREFERRED) ||
249 (ha->ipv6_addr0_state == IP_ADDRSTATE_PREFERRED) ||
250 (ha->ipv6_addr1_state == IP_ADDRSTATE_PREFERRED)) {
251 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
252 "Preferred IP configured."
253 " Don't wait!\n", ha->host_no,
254 __func__));
255 ipv6_wait = 0;
256 }
257 if (memcmp(&ha->ipv6_default_router_addr, ip_address,
258 IPv6_ADDR_LEN) == 0) {
259 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
260 "No Router configured. "
261 "Don't wait!\n", ha->host_no,
262 __func__));
263 ipv6_wait = 0;
264 }
265 if ((ha->ipv6_default_router_state ==
266 IPV6_RTRSTATE_MANUAL) &&
267 (ha->ipv6_link_local_state ==
268 IP_ADDRSTATE_TENTATIVE) &&
269 (memcmp(&ha->ipv6_link_local_addr,
270 &ha->ipv6_default_router_addr, 4) == 0)) {
271 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
272 "IP configured. Don't wait!\n",
273 ha->host_no, __func__));
274 ipv6_wait = 0;
275 }
276 }
277 if (ipv4_wait || ipv6_wait) {
278 DEBUG2(printk("scsi%ld: %s: Wait for additional "
279 "IP(s) \"", ha->host_no, __func__));
280 if (ipv4_wait)
281 DEBUG2(printk("IPv4 "));
282 if (ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING)
283 DEBUG2(printk("IPv6LinkLocal "));
284 if (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING)
285 DEBUG2(printk("IPv6Addr0 "));
286 if (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING)
287 DEBUG2(printk("IPv6Addr1 "));
288 DEBUG2(printk("\"\n"));
289 }
290 }
291
292 return ipv4_wait|ipv6_wait;
293}
294
afaf5a2d
DS		 295static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
296{
297 uint32_t timeout_count;
298 int ready = 0;
299
300 DEBUG2(dev_info(&ha->pdev->dev, "Waiting for Firmware Ready..\n"));
301 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
302 timeout_count--) {
303 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
304 qla4xxx_get_dhcp_ip_address(ha);
305
306 /* Get firmware state. */
307 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
308 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
309 "state\n", ha->host_no, __func__));
310 break;
311
312 }
313
314 if (ha->firmware_state & FW_STATE_ERROR) {
315 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
316 " occurred\n", ha->host_no, __func__));
317 break;
318
319 }
320 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
321 /*
322 * The firmware has not yet been issued an Initialize
323 * Firmware command, so issue it now.
324 */
325 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
326 break;
327
328 /* Go back and test for ready state - no wait. */
329 continue;
330 }
331
2a49a78e
VC		 332 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
333 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
334 "AUTOCONNECT in progress\n",
335 ha->host_no, __func__));
336 }
337
338 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
339 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
340 " CONFIGURING IP\n",
341 ha->host_no, __func__));
342 /*
343 * Check for link state after 15 secs and if link is
344 * still DOWN then, cable is unplugged. Ignore "DHCP
345 * in Progress/CONFIGURING IP" bit to check if firmware
346 * is in ready state or not after 15 secs.
347 * This is applicable for both 2.x & 3.x firmware
348 */
349 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
350 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
351 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
352 " LINK UP (Cable plugged)\n",
353 ha->host_no, __func__));
354 } else if (ha->firmware_state &
355 (FW_STATE_CONFIGURING_IP |
356 FW_STATE_READY)) {
357 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
358 "LINK DOWN (Cable unplugged)\n",
359 ha->host_no, __func__));
360 ha->firmware_state = FW_STATE_READY;
361 }
362 }
363 }
364
afaf5a2d 365 if (ha->firmware_state == FW_STATE_READY) {
2a49a78e
VC		 366 /* If DHCP IP Addr is available, retrieve it now. */
367 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
368 &ha->dpc_flags))
369 qla4xxx_get_dhcp_ip_address(ha);
370
371 if (!qla4xxx_wait_for_ip_config(ha) ||
372 timeout_count == 1) {
373 DEBUG2(dev_info(&ha->pdev->dev,
374 "Firmware Ready..\n"));
375 /* The firmware is ready to process SCSI
376 commands. */
377 DEBUG2(dev_info(&ha->pdev->dev,
378 "scsi%ld: %s: MEDIA TYPE"
379 " - %s\n", ha->host_no,
380 __func__, (ha->addl_fw_state &
381 FW_ADDSTATE_OPTICAL_MEDIA)
382 != 0 ? "OPTICAL" : "COPPER"));
383 DEBUG2(dev_info(&ha->pdev->dev,
384 "scsi%ld: %s: DHCPv4 STATE"
385 " Enabled %s\n", ha->host_no,
386 __func__, (ha->addl_fw_state &
387 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
388 "YES" : "NO"));
389 DEBUG2(dev_info(&ha->pdev->dev,
390 "scsi%ld: %s: LINK %s\n",
391 ha->host_no, __func__,
392 (ha->addl_fw_state &
393 FW_ADDSTATE_LINK_UP) != 0 ?
394 "UP" : "DOWN"));
395 DEBUG2(dev_info(&ha->pdev->dev,
396 "scsi%ld: %s: iSNS Service "
397 "Started %s\n",
398 ha->host_no, __func__,
399 (ha->addl_fw_state &
400 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
401 "YES" : "NO"));
402
403 ready = 1;
404 break;
405 }
afaf5a2d
DS		 406 }
407 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
408 "seconds expired= %d\n", ha->host_no, __func__,
409 ha->firmware_state, ha->addl_fw_state,
410 timeout_count));
d915058f
DS		 411 if (is_qla4032(ha) &&
412 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
413 (timeout_count < ADAPTER_INIT_TOV - 5)) {
414 break;
415 }
416
afaf5a2d
DS		 417 msleep(1000);
418 } /* end of for */
419
2a49a78e 420 if (timeout_count <= 0)
afaf5a2d
DS		 421 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
422 ha->host_no, __func__));
423
2a49a78e
VC		 424 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
425 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
426 "it's waiting to configure an IP address\n",
427 ha->host_no, __func__));
afaf5a2d 428 ready = 1;
2a49a78e
VC		 429 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
430 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
431 "auto-discovery still in process\n",
432 ha->host_no, __func__));
b966346c 433 ready = 1;
afaf5a2d
DS		 434 }
435
436 return ready;
437}
438
439/**
440 * qla4xxx_init_firmware - initializes the firmware.
441 * @ha: pointer to host adapter structure.
442 *
443 **/
444static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
445{
446 int status = QLA_ERROR;
447
448 dev_info(&ha->pdev->dev, "Initializing firmware..\n");
449 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
450 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
451 "control block\n", ha->host_no, __func__));
452 return status;
453 }
454 if (!qla4xxx_fw_ready(ha))
455 return status;
456
afaf5a2d
DS		 457 return qla4xxx_get_firmware_status(ha);
458}
459
460static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha,
92b72736
DS		 461 uint32_t fw_ddb_index,
462 uint32_t *new_tgt)
afaf5a2d
DS		 463{
464 struct dev_db_entry *fw_ddb_entry = NULL;
465 dma_addr_t fw_ddb_entry_dma;
466 struct ddb_entry *ddb_entry = NULL;
467 int found = 0;
468 uint32_t device_state;
469
92b72736 470 *new_tgt = 0;
afaf5a2d
DS		 471 /* Make sure the dma buffer is valid */
472 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
473 sizeof(*fw_ddb_entry),
474 &fw_ddb_entry_dma, GFP_KERNEL);
475 if (fw_ddb_entry == NULL) {
476 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
477 ha->host_no, __func__));
beabe7c1 478 goto exit_get_ddb_entry_no_free;
afaf5a2d
DS		 479 }
480
481 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
482 fw_ddb_entry_dma, NULL, NULL,
483 &device_state, NULL, NULL, NULL) ==
beabe7c1 484 QLA_ERROR) {
afaf5a2d
DS		 485 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
486 "fw_ddb_index %d\n", ha->host_no, __func__,
487 fw_ddb_index));
beabe7c1 488 goto exit_get_ddb_entry;
afaf5a2d
DS		 489 }
490
491 /* Allocate DDB if not already allocated. */
492 DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no,
493 __func__, fw_ddb_index));
494 list_for_each_entry(ddb_entry, &ha->ddb_list, list) {
41bbdbeb
MC		 495 if ((memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsi_name,
496 ISCSI_NAME_SIZE) == 0) &&
497 (ddb_entry->tpgt ==
498 le32_to_cpu(fw_ddb_entry->tgt_portal_grp)) &&
499 (memcmp(ddb_entry->isid, fw_ddb_entry->isid,
500 sizeof(ddb_entry->isid)) == 0)) {
afaf5a2d
DS		 501 found++;
502 break;
503 }
504 }
505
beabe7c1 506 /* if not found allocate new ddb */
afaf5a2d
DS		 507 if (!found) {
508 DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating "
509 "new ddb\n", ha->host_no, __func__,
510 fw_ddb_index));
92b72736 511 *new_tgt = 1;
afaf5a2d
DS		 512 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
513 }
514
beabe7c1 515exit_get_ddb_entry:
afaf5a2d
DS		 516 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
517 fw_ddb_entry_dma);
518
beabe7c1 519exit_get_ddb_entry_no_free:
afaf5a2d
DS		 520 return ddb_entry;
521}
522
523/**
524 * qla4xxx_update_ddb_entry - update driver's internal ddb
525 * @ha: pointer to host adapter structure.
526 * @ddb_entry: pointer to device database structure to be filled
527 * @fw_ddb_index: index of the ddb entry in fw ddb table
528 *
529 * This routine updates the driver's internal device database entry
530 * with information retrieved from the firmware's device database
531 * entry for the specified device. The ddb_entry->fw_ddb_index field
532 * must be initialized prior to calling this routine
533 *
534 **/
47975477
AB		 535static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
536 struct ddb_entry *ddb_entry,
537 uint32_t fw_ddb_index)
afaf5a2d
DS		 538{
539 struct dev_db_entry *fw_ddb_entry = NULL;
540 dma_addr_t fw_ddb_entry_dma;
541 int status = QLA_ERROR;
821d6e54 542 uint32_t conn_err;
afaf5a2d
DS		 543
544 if (ddb_entry == NULL) {
545 DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no,
546 __func__));
beabe7c1
PM		 547
548 goto exit_update_ddb_no_free;
afaf5a2d
DS		 549 }
550
551 /* Make sure the dma buffer is valid */
552 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
553 sizeof(*fw_ddb_entry),
554 &fw_ddb_entry_dma, GFP_KERNEL);
555 if (fw_ddb_entry == NULL) {
556 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
557 ha->host_no, __func__));
558
beabe7c1 559 goto exit_update_ddb_no_free;
afaf5a2d
DS		 560 }
561
562 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
563 fw_ddb_entry_dma, NULL, NULL,
821d6e54 564 &ddb_entry->fw_ddb_device_state, &conn_err,
afaf5a2d
DS		 565 &ddb_entry->tcp_source_port_num,
566 &ddb_entry->connection_id) ==
beabe7c1 567 QLA_ERROR) {
afaf5a2d
DS		 568 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
569 "fw_ddb_index %d\n", ha->host_no, __func__,
570 fw_ddb_index));
571
572 goto exit_update_ddb;
573 }
574
575 status = QLA_SUCCESS;
2a49a78e 576 ddb_entry->options = le16_to_cpu(fw_ddb_entry->options);
92b72736 577 ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid);
afaf5a2d 578 ddb_entry->task_mgmt_timeout =
92b72736 579 le16_to_cpu(fw_ddb_entry->def_timeout);
afaf5a2d 580 ddb_entry->CmdSn = 0;
92b72736 581 ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle);
afaf5a2d 582 ddb_entry->default_relogin_timeout =
92b72736
DS		 583 le16_to_cpu(fw_ddb_entry->def_timeout);
584 ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
afaf5a2d
DS		 585
586 /* Update index in case it changed */
587 ddb_entry->fw_ddb_index = fw_ddb_index;
588 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
589
92b72736
DS		 590 ddb_entry->port = le16_to_cpu(fw_ddb_entry->port);
591 ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
41bbdbeb
MC		 592 memcpy(ddb_entry->isid, fw_ddb_entry->isid, sizeof(ddb_entry->isid));
593
92b72736 594 memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
afaf5a2d 595 min(sizeof(ddb_entry->iscsi_name),
92b72736
DS		 596 sizeof(fw_ddb_entry->iscsi_name)));
597 memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0],
598 min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr)));
afaf5a2d 599
2a49a78e
VC		 600 ddb_entry->iscsi_max_burst_len = fw_ddb_entry->iscsi_max_burst_len;
601 ddb_entry->iscsi_max_outsnd_r2t = fw_ddb_entry->iscsi_max_outsnd_r2t;
602 ddb_entry->iscsi_first_burst_len = fw_ddb_entry->iscsi_first_burst_len;
603 ddb_entry->iscsi_max_rcv_data_seg_len =
604 fw_ddb_entry->iscsi_max_rcv_data_seg_len;
605 ddb_entry->iscsi_max_snd_data_seg_len =
606 fw_ddb_entry->iscsi_max_snd_data_seg_len;
607
608 if (ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
609 memcpy(&ddb_entry->remote_ipv6_addr,
610 fw_ddb_entry->ip_addr,
611 min(sizeof(ddb_entry->remote_ipv6_addr),
612 sizeof(fw_ddb_entry->ip_addr)));
613 memcpy(&ddb_entry->link_local_ipv6_addr,
614 fw_ddb_entry->link_local_ipv6_addr,
615 min(sizeof(ddb_entry->link_local_ipv6_addr),
616 sizeof(fw_ddb_entry->link_local_ipv6_addr)));
afaf5a2d 617
f4f5df23
VC		 618 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x"
619 " ConnErr %08x IP %pI6 "
821d6e54
VC		 620 ":%04d \"%s\"\n",
621 __func__, fw_ddb_index,
821d6e54
VC		 622 ddb_entry->fw_ddb_device_state,
623 conn_err, fw_ddb_entry->ip_addr,
624 le16_to_cpu(fw_ddb_entry->port),
625 fw_ddb_entry->iscsi_name));
626 } else
f4f5df23
VC		 627 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x"
628 " ConnErr %08x IP %pI4 "
821d6e54
VC		 629 ":%04d \"%s\"\n",
630 __func__, fw_ddb_index,
821d6e54
VC		 631 ddb_entry->fw_ddb_device_state,
632 conn_err, fw_ddb_entry->ip_addr,
633 le16_to_cpu(fw_ddb_entry->port),
634 fw_ddb_entry->iscsi_name));
2a49a78e 635exit_update_ddb:
afaf5a2d
DS		 636 if (fw_ddb_entry)
637 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
638 fw_ddb_entry, fw_ddb_entry_dma);
639
beabe7c1 640exit_update_ddb_no_free:
afaf5a2d
DS		 641 return status;
642}
643
644/**
645 * qla4xxx_alloc_ddb - allocate device database entry
646 * @ha: Pointer to host adapter structure.
647 * @fw_ddb_index: Firmware's device database index
648 *
649 * This routine allocates a ddb_entry, ititializes some values, and
650 * inserts it into the ddb list.
651 **/
47975477
AB		 652static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
653 uint32_t fw_ddb_index)
afaf5a2d
DS		 654{
655 struct ddb_entry *ddb_entry;
656
657 DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no,
658 __func__, fw_ddb_index));
659
660 ddb_entry = qla4xxx_alloc_sess(ha);
661 if (ddb_entry == NULL) {
662 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
663 "to add fw_ddb_index [%d]\n",
664 ha->host_no, __func__, fw_ddb_index));
665 return ddb_entry;
666 }
667
668 ddb_entry->fw_ddb_index = fw_ddb_index;
669 atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count);
670 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
671 atomic_set(&ddb_entry->relogin_timer, 0);
672 atomic_set(&ddb_entry->relogin_retry_count, 0);
673 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
674 list_add_tail(&ddb_entry->list, &ha->ddb_list);
675 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
676 ha->tot_ddbs++;
677
678 return ddb_entry;
679}
680
821d6e54
VC		 681/**
682 * qla4_is_relogin_allowed - Are we allowed to login?
683 * @ha: Pointer to host adapter structure.
684 * @conn_err: Last connection error associated with the ddb
685 *
686 * This routine tests the given connection error to determine if
687 * we are allowed to login.
688 **/
689int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err)
690{
691 uint32_t err_code, login_rsp_sts_class;
692 int relogin = 1;
693
694 err_code = ((conn_err & 0x00ff0000) >> 16);
695 login_rsp_sts_class = ((conn_err & 0x0000ff00) >> 8);
696 if (err_code == 0x1c || err_code == 0x06) {
697 DEBUG2(dev_info(&ha->pdev->dev,
698 ": conn_err=0x%08x, send target completed"
699 " or access denied failure\n", conn_err));
700 relogin = 0;
701 }
702 if ((err_code == 0x08) && (login_rsp_sts_class == 0x02)) {
703 /* Login Response PDU returned an error.
704 Login Response Status in Error Code Detail
705 indicates login should not be retried.*/
706 DEBUG2(dev_info(&ha->pdev->dev,
707 ": conn_err=0x%08x, do not retry relogin\n",
708 conn_err));
709 relogin = 0;
710 }
711
712 return relogin;
713}
714
afaf5a2d
DS		 715/**
716 * qla4xxx_configure_ddbs - builds driver ddb list
717 * @ha: Pointer to host adapter structure.
718 *
719 * This routine searches for all valid firmware ddb entries and builds
720 * an internal ddb list. Ddbs that are considered valid are those with
721 * a device state of SESSION_ACTIVE.
722 **/
723static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
724{
beabe7c1 725 int status = QLA_ERROR;
afaf5a2d
DS		 726 uint32_t fw_ddb_index = 0;
727 uint32_t next_fw_ddb_index = 0;
728 uint32_t ddb_state;
821d6e54 729 uint32_t conn_err;
afaf5a2d 730 struct ddb_entry *ddb_entry;
821d6e54
VC		 731 struct dev_db_entry *fw_ddb_entry = NULL;
732 dma_addr_t fw_ddb_entry_dma;
733 uint32_t ipv6_device;
92b72736 734 uint32_t new_tgt;
afaf5a2d 735
821d6e54
VC		 736 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
737 &fw_ddb_entry_dma, GFP_KERNEL);
738 if (fw_ddb_entry == NULL) {
739 DEBUG2(dev_info(&ha->pdev->dev, "%s: DMA alloc failed\n",
740 __func__));
beabe7c1
PM		 741
742 goto exit_build_ddb_list_no_free;
821d6e54
VC		 743 }
744
afaf5a2d
DS		 745 dev_info(&ha->pdev->dev, "Initializing DDBs ...\n");
746 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES;
747 fw_ddb_index = next_fw_ddb_index) {
748 /* First, let's see if a device exists here */
821d6e54
VC		 749 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
750 0, NULL, &next_fw_ddb_index,
751 &ddb_state, &conn_err,
752 NULL, NULL) ==
753 QLA_ERROR) {
afaf5a2d
DS		 754 DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
755 "fw_ddb_index %d failed", ha->host_no,
756 __func__, fw_ddb_index));
beabe7c1 757 goto exit_build_ddb_list;
afaf5a2d
DS		 758 }
759
760 DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, "
761 "next_fw_ddb_index=%d.\n", ha->host_no, __func__,
762 fw_ddb_index, ddb_state, next_fw_ddb_index));
763
764 /* Issue relogin, if necessary. */
765 if (ddb_state == DDB_DS_SESSION_FAILED ||
766 ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) {
767 /* Try and login to device */
768 DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
769 ha->host_no, __func__, fw_ddb_index));
821d6e54
VC		 770 ipv6_device = le16_to_cpu(fw_ddb_entry->options) &
771 DDB_OPT_IPV6_DEVICE;
772 if (qla4_is_relogin_allowed(ha, conn_err) &&
773 ((!ipv6_device &&
774 *((uint32_t *)fw_ddb_entry->ip_addr))
775 || ipv6_device)) {
afaf5a2d 776 qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0);
92b72736 777 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index,
821d6e54
VC		 778 NULL, 0, NULL,
779 &next_fw_ddb_index,
780 &ddb_state, &conn_err,
781 NULL, NULL)
782 == QLA_ERROR) {
92b72736
DS		 783 DEBUG2(printk("scsi%ld: %s:"
784 "get_ddb_entry %d failed\n",
785 ha->host_no,
786 __func__, fw_ddb_index));
beabe7c1 787 goto exit_build_ddb_list;
92b72736
DS		 788 }
789 }
afaf5a2d
DS		 790 }
791
792 if (ddb_state != DDB_DS_SESSION_ACTIVE)
793 goto next_one;
794 /*
795 * if fw_ddb with session active state found,
796 * add to ddb_list
797 */
798 DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n",
799 ha->host_no, __func__, fw_ddb_index));
800
801 /* Add DDB to internal our ddb list. */
92b72736 802 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
afaf5a2d
DS		 803 if (ddb_entry == NULL) {
804 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
805 "for device at fw_ddb_index %d\n",
806 ha->host_no, __func__, fw_ddb_index));
beabe7c1 807 goto exit_build_ddb_list;
afaf5a2d
DS		 808 }
809 /* Fill in the device structure */
810 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
811 QLA_ERROR) {
812 ha->fw_ddb_index_map[fw_ddb_index] =
813 (struct ddb_entry *)INVALID_ENTRY;
814
afaf5a2d
DS		 815 DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed "
816 "for fw_ddb_index %d.\n",
817 ha->host_no, __func__, fw_ddb_index));
beabe7c1 818 goto exit_build_ddb_list;
afaf5a2d
DS		 819 }
820
821next_one:
822 /* We know we've reached the last device when
823 * next_fw_ddb_index is 0 */
824 if (next_fw_ddb_index == 0)
825 break;
826 }
827
beabe7c1 828 status = QLA_SUCCESS;
afaf5a2d
DS		 829 dev_info(&ha->pdev->dev, "DDB list done..\n");
830
beabe7c1
PM		 831exit_build_ddb_list:
832 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
833 fw_ddb_entry_dma);
834
835exit_build_ddb_list_no_free:
afaf5a2d
DS		 836 return status;
837}
838
839struct qla4_relog_scan {
840 int halt_wait;
841 uint32_t conn_err;
afaf5a2d
DS		 842 uint32_t fw_ddb_index;
843 uint32_t next_fw_ddb_index;
844 uint32_t fw_ddb_device_state;
845};
846
847static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs)
848{
849 struct ddb_entry *ddb_entry;
850
821d6e54 851 if (qla4_is_relogin_allowed(ha, rs->conn_err)) {
afaf5a2d
DS		 852 /* We either have a device that is in
853 * the process of relogging in or a
854 * device that is waiting to be
855 * relogged in */
856 rs->halt_wait = 0;
857
858 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
859 rs->fw_ddb_index);
860 if (ddb_entry == NULL)
861 return QLA_ERROR;
862
863 if (ddb_entry->dev_scan_wait_to_start_relogin != 0
864 && time_after_eq(jiffies,
865 ddb_entry->
866 dev_scan_wait_to_start_relogin))
867 {
868 ddb_entry->dev_scan_wait_to_start_relogin = 0;
869 qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0);
870 }
871 }
872 return QLA_SUCCESS;
873}
874
875static int qla4_scan_for_relogin(struct scsi_qla_host *ha,
876 struct qla4_relog_scan *rs)
877{
878 int error;
879
880 /* scan for relogins
881 * ----------------- */
882 for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES;
883 rs->fw_ddb_index = rs->next_fw_ddb_index) {
884 if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0,
885 NULL, &rs->next_fw_ddb_index,
886 &rs->fw_ddb_device_state,
887 &rs->conn_err, NULL, NULL)
888 == QLA_ERROR)
889 return QLA_ERROR;
890
891 if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS)
892 rs->halt_wait = 0;
893
894 if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED ||
895 rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) {
896 error = qla4_test_rdy(ha, rs);
897 if (error)
898 return error;
899 }
900
901 /* We know we've reached the last device when
902 * next_fw_ddb_index is 0 */
903 if (rs->next_fw_ddb_index == 0)
904 break;
905 }
906 return QLA_SUCCESS;
907}
908
909/**
910 * qla4xxx_devices_ready - wait for target devices to be logged in
911 * @ha: pointer to adapter structure
912 *
913 * This routine waits up to ql4xdiscoverywait seconds
914 * F/W database during driver load time.
915 **/
916static int qla4xxx_devices_ready(struct scsi_qla_host *ha)
917{
918 int error;
919 unsigned long discovery_wtime;
920 struct qla4_relog_scan rs;
921
922 discovery_wtime = jiffies + (ql4xdiscoverywait * HZ);
923
924 DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait));
925 do {
926 /* poll for AEN. */
927 qla4xxx_get_firmware_state(ha);
928 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) {
929 /* Set time-between-relogin timer */
930 qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS);
931 }
932
933 /* if no relogins active or needed, halt discvery wait */
934 rs.halt_wait = 1;
935
936 error = qla4_scan_for_relogin(ha, &rs);
937
938 if (rs.halt_wait) {
939 DEBUG2(printk("scsi%ld: %s: Delay halted. Devices "
940 "Ready.\n", ha->host_no, __func__));
941 return QLA_SUCCESS;
942 }
943
944 msleep(2000);
945 } while (!time_after_eq(jiffies, discovery_wtime));
946
947 DEBUG3(qla4xxx_get_conn_event_log(ha));
948
949 return QLA_SUCCESS;
950}
951
952static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
953{
954 unsigned long wtime;
955
956 /* Flush the 0x8014 AEN from the firmware as a result of
957 * Auto connect. We are basically doing get_firmware_ddb()
958 * to determine whether we need to log back in or not.
959 * Trying to do a set ddb before we have processed 0x8014
960 * will result in another set_ddb() for the same ddb. In other
961 * words there will be stale entries in the aen_q.
962 */
963 wtime = jiffies + (2 * HZ);
964 do {
965 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
966 if (ha->firmware_state & (BIT_2 | BIT_0))
967 return;
968
969 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
970 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
971
972 msleep(1000);
973 } while (!time_after_eq(jiffies, wtime));
974
975}
976
977static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
978{
979 uint16_t fw_ddb_index;
980 int status = QLA_SUCCESS;
981
982 /* free the ddb list if is not empty */
983 if (!list_empty(&ha->ddb_list))
984 qla4xxx_free_ddb_list(ha);
985
986 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++)
987 ha->fw_ddb_index_map[fw_ddb_index] =
988 (struct ddb_entry *)INVALID_ENTRY;
989
990 ha->tot_ddbs = 0;
991
992 qla4xxx_flush_AENS(ha);
993
994 /*
995 * First perform device discovery for active
996 * fw ddb indexes and build
997 * ddb list.
998 */
999 if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR)
1000 return status;
1001
1002 /* Wait for an AEN */
1003 qla4xxx_devices_ready(ha);
1004
1005 /*
1006 * Targets can come online after the inital discovery, so processing
1007 * the aens here will catch them.
1008 */
1009 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
1010 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
1011
1012 return status;
1013}
1014
1015/**
f4f5df23 1016 * qla4xxx_reinitialize_ddb_list - update the driver ddb list
afaf5a2d
DS		 1017 * @ha: pointer to host adapter structure.
1018 *
1019 * This routine obtains device information from the F/W database after
1020 * firmware or adapter resets. The device table is preserved.
1021 **/
1022int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha)
1023{
1024 int status = QLA_SUCCESS;
1025 struct ddb_entry *ddb_entry, *detemp;
1026
1027 /* Update the device information for all devices. */
1028 list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) {
1029 qla4xxx_update_ddb_entry(ha, ddb_entry,
1030 ddb_entry->fw_ddb_index);
1031 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
1032 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
1033 DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked "
1034 "ONLINE\n", ha->host_no, __func__,
1035 ddb_entry->fw_ddb_index));
36386325 1036 iscsi_unblock_session(ddb_entry->sess);
afaf5a2d
DS		 1037 } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
1038 qla4xxx_mark_device_missing(ha, ddb_entry);
1039 }
1040 return status;
1041}
1042
1043/**
1044 * qla4xxx_relogin_device - re-establish session
1045 * @ha: Pointer to host adapter structure.
1046 * @ddb_entry: Pointer to device database entry
1047 *
1048 * This routine does a session relogin with the specified device.
1049 * The ddb entry must be assigned prior to making this call.
1050 **/
1051int qla4xxx_relogin_device(struct scsi_qla_host *ha,
1052 struct ddb_entry * ddb_entry)
1053{
1054 uint16_t relogin_timer;
1055
1056 relogin_timer = max(ddb_entry->default_relogin_timeout,
1057 (uint16_t)RELOGIN_TOV);
1058 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
1059
f4f5df23 1060 DEBUG2(printk("scsi%ld: Relogin ddb [%d]. TOV=%d\n", ha->host_no,
afaf5a2d
DS		 1061 ddb_entry->fw_ddb_index, relogin_timer));
1062
1063 qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0);
1064
1065 return QLA_SUCCESS;
1066}
1067
afaf5a2d
DS		 1068static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
1069{
1070 unsigned long flags;
1071 union external_hw_config_reg extHwConfig;
1072
1073 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
1074 __func__));
1075 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
b3925514 1076 return QLA_ERROR;
afaf5a2d
DS		 1077 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
1078 ql4xxx_unlock_flash(ha);
b3925514 1079 return QLA_ERROR;
afaf5a2d
DS		 1080 }
1081
1082 /* Get EEPRom Parameters from NVRAM and validate */
1083 dev_info(&ha->pdev->dev, "Configuring NVRAM ...\n");
1084 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
1085 spin_lock_irqsave(&ha->hardware_lock, flags);
1086 extHwConfig.Asuint32_t =
1087 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
1088 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1089 } else {
afaf5a2d
DS		 1090 dev_warn(&ha->pdev->dev,
1091 "scsi%ld: %s: EEProm checksum invalid. "
1092 "Please update your EEPROM\n", ha->host_no,
1093 __func__);
1094
b3925514 1095 /* Attempt to set defaults */
afaf5a2d
DS		 1096 if (is_qla4010(ha))
1097 extHwConfig.Asuint32_t = 0x1912;
d915058f 1098 else if (is_qla4022(ha) | is_qla4032(ha))
afaf5a2d 1099 extHwConfig.Asuint32_t = 0x0023;
b3925514
MC		 1100 else
1101 return QLA_ERROR;
afaf5a2d
DS		 1102 }
1103 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
1104 ha->host_no, __func__, extHwConfig.Asuint32_t));
1105
1106 spin_lock_irqsave(&ha->hardware_lock, flags);
1107 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
1108 readl(isp_ext_hw_conf(ha));
1109 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1110
1111 ql4xxx_unlock_nvram(ha);
1112 ql4xxx_unlock_flash(ha);
1113
b3925514 1114 return QLA_SUCCESS;
afaf5a2d
DS		 1115}
1116
f4f5df23
VC		 1117/**
1118 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
1119 * @ha: HA context
1120 */
1121void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
1122{
1123 pci_set_master(ha->pdev);
1124}
1125
1126void qla4xxx_pci_config(struct scsi_qla_host *ha)
afaf5a2d 1127{
92b72736 1128 uint16_t w;
46235e60 1129 int status;
afaf5a2d
DS		 1130
1131 dev_info(&ha->pdev->dev, "Configuring PCI space...\n");
1132
1133 pci_set_master(ha->pdev);
46235e60 1134 status = pci_set_mwi(ha->pdev);
afaf5a2d
DS		 1135 /*
1136 * We want to respect framework's setting of PCI configuration space
1137 * command register and also want to make sure that all bits of
1138 * interest to us are properly set in command register.
1139 */
1140 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
92b72736 1141 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
afaf5a2d
DS		 1142 w &= ~PCI_COMMAND_INTX_DISABLE;
1143 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
1144}
1145
1146static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
1147{
1148 int status = QLA_ERROR;
c301b026 1149 unsigned long max_wait_time;
afaf5a2d
DS		 1150 unsigned long flags;
1151 uint32_t mbox_status;
1152
1153 dev_info(&ha->pdev->dev, "Starting firmware ...\n");
1154
1155 /*
1156 * Start firmware from flash ROM
1157 *
1158 * WORKAROUND: Stuff a non-constant value that the firmware can
1159 * use as a seed for a random number generator in MB7 prior to
1160 * setting BOOT_ENABLE. Fixes problem where the TCP
1161 * connections use the same TCP ports after each reboot,
1162 * causing some connections to not get re-established.
1163 */
1164 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
1165 ha->host_no, __func__));
1166
1167 spin_lock_irqsave(&ha->hardware_lock, flags);
1168 writel(jiffies, &ha->reg->mailbox[7]);
d915058f 1169 if (is_qla4022(ha) | is_qla4032(ha))
afaf5a2d
DS		 1170 writel(set_rmask(NVR_WRITE_ENABLE),
1171 &ha->reg->u1.isp4022.nvram);
1172
92b72736
DS		 1173 writel(2, &ha->reg->mailbox[6]);
1174 readl(&ha->reg->mailbox[6]);
1175
afaf5a2d
DS		 1176 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
1177 readl(&ha->reg->ctrl_status);
1178 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1179
1180 /* Wait for firmware to come UP. */
c301b026
VC		 1181 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
1182 "boot firmware to complete...\n",
1183 ha->host_no, __func__, FIRMWARE_UP_TOV));
1184 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
afaf5a2d
DS		 1185 do {
1186 uint32_t ctrl_status;
1187
1188 spin_lock_irqsave(&ha->hardware_lock, flags);
1189 ctrl_status = readw(&ha->reg->ctrl_status);
1190 mbox_status = readw(&ha->reg->mailbox[0]);
1191 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1192
1193 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
1194 break;
1195 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
1196 break;
1197
c301b026
VC		 1198 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
1199 "firmware to complete... ctrl_sts=0x%x\n",
1200 ha->host_no, __func__, ctrl_status));
afaf5a2d 1201
c301b026
VC		 1202 msleep_interruptible(250);
1203 } while (!time_after_eq(jiffies, max_wait_time));
afaf5a2d
DS		 1204
1205 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
c301b026 1206 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
afaf5a2d
DS		 1207 ha->host_no, __func__));
1208
1209 spin_lock_irqsave(&ha->hardware_lock, flags);
1210 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
1211 &ha->reg->ctrl_status);
1212 readl(&ha->reg->ctrl_status);
1213 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1214
1215 status = QLA_SUCCESS;
1216 } else {
1217 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
1218 "- mbox status 0x%x\n", ha->host_no, __func__,
1219 mbox_status);
1220 status = QLA_ERROR;
1221 }
1222 return status;
1223}
1224
92b72736 1225int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
afaf5a2d 1226{
92b72736 1227#define QL4_LOCK_DRVR_WAIT 60
477ffb9d 1228#define QL4_LOCK_DRVR_SLEEP 1
afaf5a2d
DS		 1229
1230 int drvr_wait = QL4_LOCK_DRVR_WAIT;
1231 while (drvr_wait) {
92b72736 1232 if (ql4xxx_lock_drvr(a) == 0) {
477ffb9d 1233 ssleep(QL4_LOCK_DRVR_SLEEP);
afaf5a2d
DS		 1234 if (drvr_wait) {
1235 DEBUG2(printk("scsi%ld: %s: Waiting for "
92b72736
DS		 1236 "Global Init Semaphore(%d)...\n",
1237 a->host_no,
477ffb9d 1238 __func__, drvr_wait));
afaf5a2d
DS		 1239 }
1240 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
1241 } else {
1242 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
92b72736 1243 "acquired\n", a->host_no, __func__));
afaf5a2d
DS		 1244 return QLA_SUCCESS;
1245 }
1246 }
1247 return QLA_ERROR;
1248}
1249
1250/**
1251 * qla4xxx_start_firmware - starts qla4xxx firmware
1252 * @ha: Pointer to host adapter structure.
1253 *
3a4fa0a2 1254 * This routine performs the necessary steps to start the firmware for
afaf5a2d
DS		 1255 * the QLA4010 adapter.
1256 **/
f4f5df23 1257int qla4xxx_start_firmware(struct scsi_qla_host *ha)
afaf5a2d
DS		 1258{
1259 unsigned long flags = 0;
1260 uint32_t mbox_status;
1261 int status = QLA_ERROR;
1262 int soft_reset = 1;
1263 int config_chip = 0;
1264
d915058f 1265 if (is_qla4022(ha) | is_qla4032(ha))
afaf5a2d
DS		 1266 ql4xxx_set_mac_number(ha);
1267
1268 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
1269 return QLA_ERROR;
1270
1271 spin_lock_irqsave(&ha->hardware_lock, flags);
1272
1273 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
1274 __func__, readw(isp_port_ctrl(ha))));
1275 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
1276 __func__, readw(isp_port_status(ha))));
1277
1278 /* Is Hardware already initialized? */
1279 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
1280 DEBUG(printk("scsi%ld: %s: Hardware has already been "
1281 "initialized\n", ha->host_no, __func__));
1282
1283 /* Receive firmware boot acknowledgement */
1284 mbox_status = readw(&ha->reg->mailbox[0]);
1285
1286 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
1287 "0x%x\n", ha->host_no, __func__, mbox_status));
1288
1289 /* Is firmware already booted? */
1290 if (mbox_status == 0) {
1291 /* F/W not running, must be config by net driver */
1292 config_chip = 1;
1293 soft_reset = 0;
1294 } else {
1295 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
1296 &ha->reg->ctrl_status);
1297 readl(&ha->reg->ctrl_status);
1298 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1299 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
1300 DEBUG2(printk("scsi%ld: %s: Get firmware "
1301 "state -- state = 0x%x\n",
1302 ha->host_no,
1303 __func__, ha->firmware_state));
1304 /* F/W is running */
1305 if (ha->firmware_state &
1306 FW_STATE_CONFIG_WAIT) {
1307 DEBUG2(printk("scsi%ld: %s: Firmware "
1308 "in known state -- "
1309 "config and "
1310 "boot, state = 0x%x\n",
1311 ha->host_no, __func__,
1312 ha->firmware_state));
1313 config_chip = 1;
1314 soft_reset = 0;
1315 }
1316 } else {
1317 DEBUG2(printk("scsi%ld: %s: Firmware in "
1318 "unknown state -- resetting,"
1319 " state = "
1320 "0x%x\n", ha->host_no, __func__,
1321 ha->firmware_state));
1322 }
1323 spin_lock_irqsave(&ha->hardware_lock, flags);
1324 }
1325 } else {
1326 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
1327 "started - resetting\n", ha->host_no, __func__));
1328 }
1329 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1330
1331 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
1332 ha->host_no, __func__, soft_reset, config_chip));
1333 if (soft_reset) {
1334 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
1335 __func__));
f4f5df23
VC		 1336 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr
1337 * lock again, but ok */
afaf5a2d
DS		 1338 if (status == QLA_ERROR) {
1339 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
1340 ha->host_no, __func__));
1341 ql4xxx_unlock_drvr(ha);
1342 return QLA_ERROR;
1343 }
1344 config_chip = 1;
1345
b1c11812 1346 /* Reset clears the semaphore, so acquire again */
afaf5a2d
DS		 1347 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
1348 return QLA_ERROR;
1349 }
1350
1351 if (config_chip) {
1352 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
1353 status = qla4xxx_start_firmware_from_flash(ha);
1354 }
1355
1356 ql4xxx_unlock_drvr(ha);
1357 if (status == QLA_SUCCESS) {
afaf5a2d
DS		 1358 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
1359 qla4xxx_get_crash_record(ha);
1360 } else {
1361 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
1362 ha->host_no, __func__));
1363 }
1364 return status;
1365}
1366
1367
1368/**
1369 * qla4xxx_initialize_adapter - initiailizes hba
1370 * @ha: Pointer to host adapter structure.
1371 * @renew_ddb_list: Indicates what to do with the adapter's ddb list
1372 * after adapter recovery has completed.
1373 * 0=preserve ddb list, 1=destroy and rebuild ddb list
1374 *
1375 * This routine parforms all of the steps necessary to initialize the adapter.
1376 *
1377 **/
1378int qla4xxx_initialize_adapter(struct scsi_qla_host *ha,
1379 uint8_t renew_ddb_list)
1380{
1381 int status = QLA_ERROR;
1382 int8_t ip_address[IP_ADDR_LEN] = {0} ;
1383
1384 ha->eeprom_cmd_data = 0;
1385
f4f5df23
VC		 1386 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
1387 ha->isp_ops->pci_config(ha);
afaf5a2d 1388
f4f5df23 1389 ha->isp_ops->disable_intrs(ha);
afaf5a2d
DS		 1390
1391 /* Initialize the Host adapter request/response queues and firmware */
f4f5df23
VC		 1392 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
1393 goto exit_init_hba;
1394
1395 if (qla4xxx_get_fw_version(ha) == QLA_ERROR)
46235e60 1396 goto exit_init_hba;
afaf5a2d 1397
f4f5df23 1398 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
46235e60 1399 goto exit_init_hba;
afaf5a2d
DS		 1400
1401 if (qla4xxx_init_local_data(ha) == QLA_ERROR)
46235e60 1402 goto exit_init_hba;
afaf5a2d
DS		 1403
1404 status = qla4xxx_init_firmware(ha);
1405 if (status == QLA_ERROR)
46235e60 1406 goto exit_init_hba;
afaf5a2d
DS		 1407
1408 /*
1409 * FW is waiting to get an IP address from DHCP server: Skip building
1410 * the ddb_list and wait for DHCP lease acquired aen to come in
1411 * followed by 0x8014 aen" to trigger the tgt discovery process.
1412 */
2a49a78e 1413 if (ha->firmware_state & FW_STATE_CONFIGURING_IP)
46235e60 1414 goto exit_init_online;
afaf5a2d
DS		 1415
1416 /* Skip device discovery if ip and subnet is zero */
1417 if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 ||
1418 memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0)
46235e60 1419 goto exit_init_online;
afaf5a2d
DS		 1420
1421 if (renew_ddb_list == PRESERVE_DDB_LIST) {
1422 /*
1423 * We want to preserve lun states (i.e. suspended, etc.)
1424 * for recovery initiated by the driver. So just update
1425 * the device states for the existing ddb_list.
1426 */
1427 qla4xxx_reinitialize_ddb_list(ha);
1428 } else if (renew_ddb_list == REBUILD_DDB_LIST) {
1429 /*
1430 * We want to build the ddb_list from scratch during
1431 * driver initialization and recovery initiated by the
1432 * INT_HBA_RESET IOCTL.
1433 */
1434 status = qla4xxx_initialize_ddb_list(ha);
1435 if (status == QLA_ERROR) {
1436 DEBUG2(printk("%s(%ld) Error occurred during build"
1437 "ddb list\n", __func__, ha->host_no));
1438 goto exit_init_hba;
1439 }
1440
1441 }
1442 if (!ha->tot_ddbs) {
1443 DEBUG2(printk("scsi%ld: Failed to initialize devices or none "
1444 "present in Firmware device database\n",
1445 ha->host_no));
1446 }
1447
46235e60 1448exit_init_online:
92b72736 1449 set_bit(AF_ONLINE, &ha->flags);
46235e60 1450exit_init_hba:
f4f5df23
VC		 1451 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
1452 status == QLA_ERROR ? "FAILED" : "SUCCEDED"));
afaf5a2d 1453 return status;
afaf5a2d
DS		 1454}
1455
1456/**
1457 * qla4xxx_add_device_dynamically - ddb addition due to an AEN
1458 * @ha: Pointer to host adapter structure.
1459 * @fw_ddb_index: Firmware's device database index
1460 *
1461 * This routine processes adds a device as a result of an 8014h AEN.
1462 **/
1463static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha,
1464 uint32_t fw_ddb_index)
1465{
1466 struct ddb_entry * ddb_entry;
92b72736 1467 uint32_t new_tgt;
afaf5a2d
DS		 1468
1469 /* First allocate a device structure */
92b72736 1470 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
afaf5a2d
DS		 1471 if (ddb_entry == NULL) {
1472 DEBUG2(printk(KERN_WARNING
1473 "scsi%ld: Unable to allocate memory to add "
1474 "fw_ddb_index %d\n", ha->host_no, fw_ddb_index));
1475 return;
1476 }
1477
92b72736
DS		 1478 if (!new_tgt && (ddb_entry->fw_ddb_index != fw_ddb_index)) {
1479 /* Target has been bound to a new fw_ddb_index */
1480 qla4xxx_free_ddb(ha, ddb_entry);
1481 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
1482 if (ddb_entry == NULL) {
1483 DEBUG2(printk(KERN_WARNING
1484 "scsi%ld: Unable to allocate memory"
1485 " to add fw_ddb_index %d\n",
1486 ha->host_no, fw_ddb_index));
1487 return;
1488 }
1489 }
afaf5a2d
DS		 1490 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
1491 QLA_ERROR) {
1492 ha->fw_ddb_index_map[fw_ddb_index] =
1493 (struct ddb_entry *)INVALID_ENTRY;
1494 DEBUG2(printk(KERN_WARNING
1495 "scsi%ld: failed to add new device at index "
1496 "[%d]\n Unable to retrieve fw ddb entry\n",
1497 ha->host_no, fw_ddb_index));
1498 qla4xxx_free_ddb(ha, ddb_entry);
1499 return;
1500 }
1501
1502 if (qla4xxx_add_sess(ddb_entry)) {
1503 DEBUG2(printk(KERN_WARNING
1504 "scsi%ld: failed to add new device at index "
1505 "[%d]\n Unable to add connection and session\n",
1506 ha->host_no, fw_ddb_index));
1507 qla4xxx_free_ddb(ha, ddb_entry);
1508 }
1509}
1510
1511/**
1512 * qla4xxx_process_ddb_changed - process ddb state change
1513 * @ha - Pointer to host adapter structure.
1514 * @fw_ddb_index - Firmware's device database index
1515 * @state - Device state
1516 *
1517 * This routine processes a Decive Database Changed AEN Event.
1518 **/
821d6e54
VC		 1519int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1520 uint32_t state, uint32_t conn_err)
afaf5a2d
DS		 1521{
1522 struct ddb_entry * ddb_entry;
1523 uint32_t old_fw_ddb_device_state;
1524
1525 /* check for out of range index */
1526 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1527 return QLA_ERROR;
1528
1529 /* Get the corresponging ddb entry */
1530 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1531 /* Device does not currently exist in our database. */
1532 if (ddb_entry == NULL) {
1533 if (state == DDB_DS_SESSION_ACTIVE)
1534 qla4xxx_add_device_dynamically(ha, fw_ddb_index);
1535 return QLA_SUCCESS;
1536 }
1537
1538 /* Device already exists in our database. */
1539 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1540 DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
1541 "index [%d]\n", ha->host_no, __func__,
1542 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1543 if (old_fw_ddb_device_state == state &&
1544 state == DDB_DS_SESSION_ACTIVE) {
e349fa35
VC		 1545 if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
1546 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
1547 iscsi_unblock_session(ddb_entry->sess);
1548 }
afaf5a2d
DS		 1549 return QLA_SUCCESS;
1550 }
1551
1552 ddb_entry->fw_ddb_device_state = state;
1553 /* Device is back online. */
1554 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
50a29aec 1555 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
afaf5a2d
DS		 1556 atomic_set(&ddb_entry->port_down_timer,
1557 ha->port_down_retry_count);
afaf5a2d
DS		 1558 atomic_set(&ddb_entry->relogin_retry_count, 0);
1559 atomic_set(&ddb_entry->relogin_timer, 0);
1560 clear_bit(DF_RELOGIN, &ddb_entry->flags);
1561 clear_bit(DF_NO_RELOGIN, &ddb_entry->flags);
b635930d 1562 iscsi_unblock_session(ddb_entry->sess);
26974789
MC		 1563 iscsi_session_event(ddb_entry->sess,
1564 ISCSI_KEVENT_CREATE_SESSION);
afaf5a2d
DS		 1565 /*
1566 * Change the lun state to READY in case the lun TIMEOUT before
1567 * the device came back.
1568 */
1569 } else {
065aa1b4
VC		 1570 /* Device went away, mark device missing */
1571 if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) {
1572 DEBUG2(dev_info(&ha->pdev->dev, "%s mark missing "
1573 "ddb_entry 0x%p sess 0x%p conn 0x%p\n",
1574 __func__, ddb_entry,
1575 ddb_entry->sess, ddb_entry->conn));
afaf5a2d 1576 qla4xxx_mark_device_missing(ha, ddb_entry);
065aa1b4
VC		 1577 }
1578
afaf5a2d
DS		 1579 /*
1580 * Relogin if device state changed to a not active state.
821d6e54
VC		 1581 * However, do not relogin if a RELOGIN is in process, or
1582 * we are not allowed to relogin to this DDB.
afaf5a2d
DS		 1583 */
1584 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
1585 !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
1586 !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) &&
821d6e54 1587 qla4_is_relogin_allowed(ha, conn_err)) {
afaf5a2d
DS		 1588 /*
1589 * This triggers a relogin. After the relogin_timer
1590 * expires, the relogin gets scheduled. We must wait a
1591 * minimum amount of time since receiving an 0x8014 AEN
1592 * with failed device_state or a logout response before
1593 * we can issue another relogin.
1594 */
821d6e54 1595 /* Firmware pads this timeout: (time2wait +1).
afaf5a2d
DS		 1596 * Driver retry to login should be longer than F/W.
1597 * Otherwise F/W will fail
1598 * set_ddb() mbx cmd with 0x4005 since it still
1599 * counting down its time2wait.
1600 */
1601 atomic_set(&ddb_entry->relogin_timer, 0);
1602 atomic_set(&ddb_entry->retry_relogin_timer,
1603 ddb_entry->default_time2wait + 4);
f4f5df23
VC		 1604 DEBUG(printk("scsi%ld: %s: ddb[%d] "
1605 "initiate relogin after %d seconds\n",
1606 ha->host_no, __func__,
1607 ddb_entry->fw_ddb_index,
1608 ddb_entry->default_time2wait + 4));
1609 } else {
1610 DEBUG(printk("scsi%ld: %s: ddb[%d] "
1611 "relogin not initiated, state = %d, "
1612 "ddb_entry->flags = 0x%lx\n",
1613 ha->host_no, __func__,
1614 ddb_entry->fw_ddb_index,
1615 ddb_entry->fw_ddb_device_state,
1616 ddb_entry->flags));
afaf5a2d
DS		 1617 }
1618 }
afaf5a2d
DS		 1619 return QLA_SUCCESS;
1620}
Linux kernel - Deliverables
This page took 0.459813 seconds and 5 git commands to generate.