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Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
[linux-2.6.git] / drivers / scsi / qla4xxx / ql4_init.c
blob7456eeb2e58a3bcca9328205ae58d15705cdcf28
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7
8 #include <scsi/iscsi_if.h>
9 #include "ql4_def.h"
10 #include "ql4_glbl.h"
11 #include "ql4_dbg.h"
12 #include "ql4_inline.h"
13
14 static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
15 {
16 uint32_t value;
17 uint8_t func_number;
18 unsigned long flags;
19
20 /* Get the function number */
21 spin_lock_irqsave(&ha->hardware_lock, flags);
22 value = readw(&ha->reg->ctrl_status);
23 spin_unlock_irqrestore(&ha->hardware_lock, flags);
24
25 func_number = (uint8_t) ((value >> 4) & 0x30);
26 switch (value & ISP_CONTROL_FN_MASK) {
27 case ISP_CONTROL_FN0_SCSI:
28 ha->mac_index = 1;
29 break;
30 case ISP_CONTROL_FN1_SCSI:
31 ha->mac_index = 3;
32 break;
33 default:
34 DEBUG2(printk("scsi%ld: %s: Invalid function number, "
35 "ispControlStatus = 0x%x\n", ha->host_no,
36 __func__, value));
37 break;
38 }
39 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
40 ha->mac_index));
41 }
42
43 /**
44 * qla4xxx_free_ddb - deallocate ddb
45 * @ha: pointer to host adapter structure.
46 * @ddb_entry: pointer to device database entry
47 *
48 * This routine marks a DDB entry INVALID
49 **/
50 void qla4xxx_free_ddb(struct scsi_qla_host *ha,
51 struct ddb_entry *ddb_entry)
52 {
53 /* Remove device pointer from index mapping arrays */
54 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
55 (struct ddb_entry *) INVALID_ENTRY;
56 ha->tot_ddbs--;
57 }
58
59 /**
60 * qla4xxx_init_response_q_entries() - Initializes response queue entries.
61 * @ha: HA context
62 *
63 * Beginning of request ring has initialization control block already built
64 * by nvram config routine.
65 **/
66 static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)
67 {
68 uint16_t cnt;
69 struct response *pkt;
70
71 pkt = (struct response *)ha->response_ptr;
72 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {
73 pkt->signature = RESPONSE_PROCESSED;
74 pkt++;
75 }
76 }
77
78 /**
79 * qla4xxx_init_rings - initialize hw queues
80 * @ha: pointer to host adapter structure.
81 *
82 * This routine initializes the internal queues for the specified adapter.
83 * The QLA4010 requires us to restart the queues at index 0.
84 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
85 **/
86 int qla4xxx_init_rings(struct scsi_qla_host *ha)
87 {
88 unsigned long flags = 0;
89 int i;
90
91 /* Initialize request queue. */
92 spin_lock_irqsave(&ha->hardware_lock, flags);
93 ha->request_out = 0;
94 ha->request_in = 0;
95 ha->request_ptr = &ha->request_ring[ha->request_in];
96 ha->req_q_count = REQUEST_QUEUE_DEPTH;
97
98 /* Initialize response queue. */
99 ha->response_in = 0;
100 ha->response_out = 0;
101 ha->response_ptr = &ha->response_ring[ha->response_out];
102
103 if (is_qla8022(ha)) {
104 writel(0,
105 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out);
106 writel(0,
107 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in);
108 writel(0,
109 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out);
110 } else if (is_qla8032(ha) || is_qla8042(ha)) {
111 writel(0,
112 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in);
113 writel(0,
114 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in);
115 writel(0,
116 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out);
117 } else {
118 /*
119 * Initialize DMA Shadow registers. The firmware is really
120 * supposed to take care of this, but on some uniprocessor
121 * systems, the shadow registers aren't cleared-- causing
122 * the interrupt_handler to think there are responses to be
123 * processed when there aren't.
124 */
125 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
126 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
127 wmb();
128
129 writel(0, &ha->reg->req_q_in);
130 writel(0, &ha->reg->rsp_q_out);
131 readl(&ha->reg->rsp_q_out);
132 }
133
134 qla4xxx_init_response_q_entries(ha);
135
136 /* Initialize mailbox active array */
137 for (i = 0; i < MAX_MRB; i++)
138 ha->active_mrb_array[i] = NULL;
139
140 spin_unlock_irqrestore(&ha->hardware_lock, flags);
141
142 return QLA_SUCCESS;
143 }
144
145 /**
146 * qla4xxx_get_sys_info - validate adapter MAC address(es)
147 * @ha: pointer to host adapter structure.
148 *
149 **/
150 int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
151 {
152 struct flash_sys_info *sys_info;
153 dma_addr_t sys_info_dma;
154 int status = QLA_ERROR;
155
156 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
157 &sys_info_dma, GFP_KERNEL);
158 if (sys_info == NULL) {
159 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
160 ha->host_no, __func__));
161
162 goto exit_get_sys_info_no_free;
163 }
164 memset(sys_info, 0, sizeof(*sys_info));
165
166 /* Get flash sys info */
167 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
168 sizeof(*sys_info)) != QLA_SUCCESS) {
169 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
170 "failed\n", ha->host_no, __func__));
171
172 goto exit_get_sys_info;
173 }
174
175 /* Save M.A.C. address & serial_number */
176 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
177 min(sizeof(ha->my_mac),
178 sizeof(sys_info->physAddr[0].address)));
179 memcpy(ha->serial_number, &sys_info->acSerialNumber,
180 min(sizeof(ha->serial_number),
181 sizeof(sys_info->acSerialNumber)));
182
183 status = QLA_SUCCESS;
184
185 exit_get_sys_info:
186 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
187 sys_info_dma);
188
189 exit_get_sys_info_no_free:
190 return status;
191 }
192
193 /**
194 * qla4xxx_init_local_data - initialize adapter specific local data
195 * @ha: pointer to host adapter structure.
196 *
197 **/
198 static void qla4xxx_init_local_data(struct scsi_qla_host *ha)
199 {
200 /* Initialize aen queue */
201 ha->aen_q_count = MAX_AEN_ENTRIES;
202 }
203
204 static uint8_t
205 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
206 {
207 uint8_t ipv4_wait = 0;
208 uint8_t ipv6_wait = 0;
209 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
210
211 /* If both IPv4 & IPv6 are enabled, possibly only one
212 * IP address may be acquired, so check to see if we
213 * need to wait for another */
214 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
215 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
216 ((ha->addl_fw_state &
217 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
218 ipv4_wait = 1;
219 }
220 if (((ha->ip_config.ipv6_addl_options &
221 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
222 ((ha->ip_config.ipv6_link_local_state ==
223 IP_ADDRSTATE_ACQUIRING) ||
224 (ha->ip_config.ipv6_addr0_state ==
225 IP_ADDRSTATE_ACQUIRING) ||
226 (ha->ip_config.ipv6_addr1_state ==
227 IP_ADDRSTATE_ACQUIRING))) {
228
229 ipv6_wait = 1;
230
231 if ((ha->ip_config.ipv6_link_local_state ==
232 IP_ADDRSTATE_PREFERRED) ||
233 (ha->ip_config.ipv6_addr0_state ==
234 IP_ADDRSTATE_PREFERRED) ||
235 (ha->ip_config.ipv6_addr1_state ==
236 IP_ADDRSTATE_PREFERRED)) {
237 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
238 "Preferred IP configured."
239 " Don't wait!\n", ha->host_no,
240 __func__));
241 ipv6_wait = 0;
242 }
243 if (memcmp(&ha->ip_config.ipv6_default_router_addr,
244 ip_address, IPv6_ADDR_LEN) == 0) {
245 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
246 "No Router configured. "
247 "Don't wait!\n", ha->host_no,
248 __func__));
249 ipv6_wait = 0;
250 }
251 if ((ha->ip_config.ipv6_default_router_state ==
252 IPV6_RTRSTATE_MANUAL) &&
253 (ha->ip_config.ipv6_link_local_state ==
254 IP_ADDRSTATE_TENTATIVE) &&
255 (memcmp(&ha->ip_config.ipv6_link_local_addr,
256 &ha->ip_config.ipv6_default_router_addr, 4) ==
257 0)) {
258 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
259 "IP configured. Don't wait!\n",
260 ha->host_no, __func__));
261 ipv6_wait = 0;
262 }
263 }
264 if (ipv4_wait || ipv6_wait) {
265 DEBUG2(printk("scsi%ld: %s: Wait for additional "
266 "IP(s) \"", ha->host_no, __func__));
267 if (ipv4_wait)
268 DEBUG2(printk("IPv4 "));
269 if (ha->ip_config.ipv6_link_local_state ==
270 IP_ADDRSTATE_ACQUIRING)
271 DEBUG2(printk("IPv6LinkLocal "));
272 if (ha->ip_config.ipv6_addr0_state ==
273 IP_ADDRSTATE_ACQUIRING)
274 DEBUG2(printk("IPv6Addr0 "));
275 if (ha->ip_config.ipv6_addr1_state ==
276 IP_ADDRSTATE_ACQUIRING)
277 DEBUG2(printk("IPv6Addr1 "));
278 DEBUG2(printk("\"\n"));
279 }
280 }
281
282 return ipv4_wait|ipv6_wait;
283 }
284
285 /**
286 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
287 * @ha: pointer to host adapter structure.
288 **/
289 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
290 {
291 int status;
292 uint32_t capture_debug_level;
293 int hdr_entry_bit, k;
294 void *md_tmp;
295 dma_addr_t md_tmp_dma;
296 struct qla4_8xxx_minidump_template_hdr *md_hdr;
297
298 if (ha->fw_dump) {
299 ql4_printk(KERN_WARNING, ha,
300 "Firmware dump previously allocated.\n");
301 return;
302 }
303
304 status = qla4xxx_req_template_size(ha);
305 if (status != QLA_SUCCESS) {
306 ql4_printk(KERN_INFO, ha,
307 "scsi%ld: Failed to get template size\n",
308 ha->host_no);
309 return;
310 }
311
312 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
313
314 /* Allocate memory for saving the template */
315 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
316 &md_tmp_dma, GFP_KERNEL);
317
318 /* Request template */
319 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
320 if (status != QLA_SUCCESS) {
321 ql4_printk(KERN_INFO, ha,
322 "scsi%ld: Failed to get minidump template\n",
323 ha->host_no);
324 goto alloc_cleanup;
325 }
326
327 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
328
329 capture_debug_level = md_hdr->capture_debug_level;
330
331 /* Get capture mask based on module loadtime setting. */
332 if (ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F)
333 ha->fw_dump_capture_mask = ql4xmdcapmask;
334 else
335 ha->fw_dump_capture_mask = capture_debug_level;
336
337 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
338
339 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
340 md_hdr->num_of_entries));
341 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
342 ha->fw_dump_tmplt_size));
343 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
344 ha->fw_dump_capture_mask));
345
346 /* Calculate fw_dump_size */
347 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
348 hdr_entry_bit <<= 1, k++) {
349 if (hdr_entry_bit & ha->fw_dump_capture_mask)
350 ha->fw_dump_size += md_hdr->capture_size_array[k];
351 }
352
353 /* Total firmware dump size including command header */
354 ha->fw_dump_size += ha->fw_dump_tmplt_size;
355 ha->fw_dump = vmalloc(ha->fw_dump_size);
356 if (!ha->fw_dump)
357 goto alloc_cleanup;
358
359 DEBUG2(ql4_printk(KERN_INFO, ha,
360 "Minidump Tempalate Size = 0x%x KB\n",
361 ha->fw_dump_tmplt_size));
362 DEBUG2(ql4_printk(KERN_INFO, ha,
363 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
364
365 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
366 ha->fw_dump_tmplt_hdr = ha->fw_dump;
367
368 alloc_cleanup:
369 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
370 md_tmp, md_tmp_dma);
371 }
372
373 static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
374 {
375 uint32_t timeout_count;
376 int ready = 0;
377
378 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
379 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
380 timeout_count--) {
381 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
382 qla4xxx_get_dhcp_ip_address(ha);
383
384 /* Get firmware state. */
385 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
386 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
387 "state\n", ha->host_no, __func__));
388 break;
389 }
390
391 if (ha->firmware_state & FW_STATE_ERROR) {
392 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
393 " occurred\n", ha->host_no, __func__));
394 break;
395
396 }
397 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
398 /*
399 * The firmware has not yet been issued an Initialize
400 * Firmware command, so issue it now.
401 */
402 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
403 break;
404
405 /* Go back and test for ready state - no wait. */
406 continue;
407 }
408
409 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
410 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
411 "AUTOCONNECT in progress\n",
412 ha->host_no, __func__));
413 }
414
415 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
416 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
417 " CONFIGURING IP\n",
418 ha->host_no, __func__));
419 /*
420 * Check for link state after 15 secs and if link is
421 * still DOWN then, cable is unplugged. Ignore "DHCP
422 * in Progress/CONFIGURING IP" bit to check if firmware
423 * is in ready state or not after 15 secs.
424 * This is applicable for both 2.x & 3.x firmware
425 */
426 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
427 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
428 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
429 " LINK UP (Cable plugged)\n",
430 ha->host_no, __func__));
431 } else if (ha->firmware_state &
432 (FW_STATE_CONFIGURING_IP |
433 FW_STATE_READY)) {
434 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
435 "LINK DOWN (Cable unplugged)\n",
436 ha->host_no, __func__));
437 ha->firmware_state = FW_STATE_READY;
438 }
439 }
440 }
441
442 if (ha->firmware_state == FW_STATE_READY) {
443 /* If DHCP IP Addr is available, retrieve it now. */
444 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
445 &ha->dpc_flags))
446 qla4xxx_get_dhcp_ip_address(ha);
447
448 if (!qla4xxx_wait_for_ip_config(ha) ||
449 timeout_count == 1) {
450 DEBUG2(ql4_printk(KERN_INFO, ha,
451 "Firmware Ready..\n"));
452 /* The firmware is ready to process SCSI
453 commands. */
454 DEBUG2(ql4_printk(KERN_INFO, ha,
455 "scsi%ld: %s: MEDIA TYPE"
456 " - %s\n", ha->host_no,
457 __func__, (ha->addl_fw_state &
458 FW_ADDSTATE_OPTICAL_MEDIA)
459 != 0 ? "OPTICAL" : "COPPER"));
460 DEBUG2(ql4_printk(KERN_INFO, ha,
461 "scsi%ld: %s: DHCPv4 STATE"
462 " Enabled %s\n", ha->host_no,
463 __func__, (ha->addl_fw_state &
464 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
465 "YES" : "NO"));
466 DEBUG2(ql4_printk(KERN_INFO, ha,
467 "scsi%ld: %s: LINK %s\n",
468 ha->host_no, __func__,
469 (ha->addl_fw_state &
470 FW_ADDSTATE_LINK_UP) != 0 ?
471 "UP" : "DOWN"));
472 DEBUG2(ql4_printk(KERN_INFO, ha,
473 "scsi%ld: %s: iSNS Service "
474 "Started %s\n",
475 ha->host_no, __func__,
476 (ha->addl_fw_state &
477 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
478 "YES" : "NO"));
479
480 ready = 1;
481 break;
482 }
483 }
484 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
485 "seconds expired= %d\n", ha->host_no, __func__,
486 ha->firmware_state, ha->addl_fw_state,
487 timeout_count));
488 if (is_qla4032(ha) &&
489 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
490 (timeout_count < ADAPTER_INIT_TOV - 5)) {
491 break;
492 }
493
494 msleep(1000);
495 } /* end of for */
496
497 if (timeout_count <= 0)
498 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
499 ha->host_no, __func__));
500
501 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
502 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
503 "it's waiting to configure an IP address\n",
504 ha->host_no, __func__));
505 ready = 1;
506 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
507 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
508 "auto-discovery still in process\n",
509 ha->host_no, __func__));
510 ready = 1;
511 }
512
513 return ready;
514 }
515
516 /**
517 * qla4xxx_init_firmware - initializes the firmware.
518 * @ha: pointer to host adapter structure.
519 *
520 **/
521 static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
522 {
523 int status = QLA_ERROR;
524
525 if (is_aer_supported(ha) &&
526 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
527 return status;
528
529 /* For 82xx, stop firmware before initializing because if BIOS
530 * has previously initialized firmware, then driver's initialize
531 * firmware will fail. */
532 if (is_qla80XX(ha))
533 qla4_8xxx_stop_firmware(ha);
534
535 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
536 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
537 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
538 "control block\n", ha->host_no, __func__));
539 return status;
540 }
541
542 if (!qla4xxx_fw_ready(ha))
543 return status;
544
545 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
546 qla4xxx_alloc_fw_dump(ha);
547
548 return qla4xxx_get_firmware_status(ha);
549 }
550
551 static void qla4xxx_set_model_info(struct scsi_qla_host *ha)
552 {
553 uint16_t board_id_string[8];
554 int i;
555 int size = sizeof(ha->nvram->isp4022.boardIdStr);
556 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;
557
558 for (i = 0; i < (size / 2) ; i++) {
559 board_id_string[i] = rd_nvram_word(ha, offset);
560 offset += 1;
561 }
562
563 memcpy(ha->model_name, board_id_string, size);
564 }
565
566 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
567 {
568 unsigned long flags;
569 union external_hw_config_reg extHwConfig;
570
571 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
572 __func__));
573 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
574 return QLA_ERROR;
575 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
576 ql4xxx_unlock_flash(ha);
577 return QLA_ERROR;
578 }
579
580 /* Get EEPRom Parameters from NVRAM and validate */
581 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
582 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
583 spin_lock_irqsave(&ha->hardware_lock, flags);
584 extHwConfig.Asuint32_t =
585 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
586 spin_unlock_irqrestore(&ha->hardware_lock, flags);
587 } else {
588 ql4_printk(KERN_WARNING, ha,
589 "scsi%ld: %s: EEProm checksum invalid. "
590 "Please update your EEPROM\n", ha->host_no,
591 __func__);
592
593 /* Attempt to set defaults */
594 if (is_qla4010(ha))
595 extHwConfig.Asuint32_t = 0x1912;
596 else if (is_qla4022(ha) | is_qla4032(ha))
597 extHwConfig.Asuint32_t = 0x0023;
598 else
599 return QLA_ERROR;
600 }
601
602 if (is_qla4022(ha) || is_qla4032(ha))
603 qla4xxx_set_model_info(ha);
604 else
605 strcpy(ha->model_name, "QLA4010");
606
607 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
608 ha->host_no, __func__, extHwConfig.Asuint32_t));
609
610 spin_lock_irqsave(&ha->hardware_lock, flags);
611 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
612 readl(isp_ext_hw_conf(ha));
613 spin_unlock_irqrestore(&ha->hardware_lock, flags);
614
615 ql4xxx_unlock_nvram(ha);
616 ql4xxx_unlock_flash(ha);
617
618 return QLA_SUCCESS;
619 }
620
621 /**
622 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
623 * @ha: HA context
624 */
625 void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
626 {
627 pci_set_master(ha->pdev);
628 }
629
630 void qla4xxx_pci_config(struct scsi_qla_host *ha)
631 {
632 uint16_t w;
633 int status;
634
635 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
636
637 pci_set_master(ha->pdev);
638 status = pci_set_mwi(ha->pdev);
639 /*
640 * We want to respect framework's setting of PCI configuration space
641 * command register and also want to make sure that all bits of
642 * interest to us are properly set in command register.
643 */
644 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
645 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
646 w &= ~PCI_COMMAND_INTX_DISABLE;
647 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
648 }
649
650 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
651 {
652 int status = QLA_ERROR;
653 unsigned long max_wait_time;
654 unsigned long flags;
655 uint32_t mbox_status;
656
657 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
658
659 /*
660 * Start firmware from flash ROM
661 *
662 * WORKAROUND: Stuff a non-constant value that the firmware can
663 * use as a seed for a random number generator in MB7 prior to
664 * setting BOOT_ENABLE. Fixes problem where the TCP
665 * connections use the same TCP ports after each reboot,
666 * causing some connections to not get re-established.
667 */
668 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
669 ha->host_no, __func__));
670
671 spin_lock_irqsave(&ha->hardware_lock, flags);
672 writel(jiffies, &ha->reg->mailbox[7]);
673 if (is_qla4022(ha) | is_qla4032(ha))
674 writel(set_rmask(NVR_WRITE_ENABLE),
675 &ha->reg->u1.isp4022.nvram);
676
677 writel(2, &ha->reg->mailbox[6]);
678 readl(&ha->reg->mailbox[6]);
679
680 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
681 readl(&ha->reg->ctrl_status);
682 spin_unlock_irqrestore(&ha->hardware_lock, flags);
683
684 /* Wait for firmware to come UP. */
685 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
686 "boot firmware to complete...\n",
687 ha->host_no, __func__, FIRMWARE_UP_TOV));
688 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
689 do {
690 uint32_t ctrl_status;
691
692 spin_lock_irqsave(&ha->hardware_lock, flags);
693 ctrl_status = readw(&ha->reg->ctrl_status);
694 mbox_status = readw(&ha->reg->mailbox[0]);
695 spin_unlock_irqrestore(&ha->hardware_lock, flags);
696
697 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
698 break;
699 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
700 break;
701
702 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
703 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n",
704 ha->host_no, __func__, ctrl_status, max_wait_time));
705
706 msleep_interruptible(250);
707 } while (!time_after_eq(jiffies, max_wait_time));
708
709 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
710 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
711 ha->host_no, __func__));
712
713 spin_lock_irqsave(&ha->hardware_lock, flags);
714 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
715 &ha->reg->ctrl_status);
716 readl(&ha->reg->ctrl_status);
717 spin_unlock_irqrestore(&ha->hardware_lock, flags);
718
719 status = QLA_SUCCESS;
720 } else {
721 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
722 "- mbox status 0x%x\n", ha->host_no, __func__,
723 mbox_status);
724 status = QLA_ERROR;
725 }
726 return status;
727 }
728
729 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
730 {
731 #define QL4_LOCK_DRVR_WAIT 60
732 #define QL4_LOCK_DRVR_SLEEP 1
733
734 int drvr_wait = QL4_LOCK_DRVR_WAIT;
735 while (drvr_wait) {
736 if (ql4xxx_lock_drvr(a) == 0) {
737 ssleep(QL4_LOCK_DRVR_SLEEP);
738 if (drvr_wait) {
739 DEBUG2(printk("scsi%ld: %s: Waiting for "
740 "Global Init Semaphore(%d)...\n",
741 a->host_no,
742 __func__, drvr_wait));
743 }
744 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
745 } else {
746 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
747 "acquired\n", a->host_no, __func__));
748 return QLA_SUCCESS;
749 }
750 }
751 return QLA_ERROR;
752 }
753
754 /**
755 * qla4xxx_start_firmware - starts qla4xxx firmware
756 * @ha: Pointer to host adapter structure.
757 *
758 * This routine performs the necessary steps to start the firmware for
759 * the QLA4010 adapter.
760 **/
761 int qla4xxx_start_firmware(struct scsi_qla_host *ha)
762 {
763 unsigned long flags = 0;
764 uint32_t mbox_status;
765 int status = QLA_ERROR;
766 int soft_reset = 1;
767 int config_chip = 0;
768
769 if (is_qla4022(ha) | is_qla4032(ha))
770 ql4xxx_set_mac_number(ha);
771
772 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
773 return QLA_ERROR;
774
775 spin_lock_irqsave(&ha->hardware_lock, flags);
776
777 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
778 __func__, readw(isp_port_ctrl(ha))));
779 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
780 __func__, readw(isp_port_status(ha))));
781
782 /* Is Hardware already initialized? */
783 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
784 DEBUG(printk("scsi%ld: %s: Hardware has already been "
785 "initialized\n", ha->host_no, __func__));
786
787 /* Receive firmware boot acknowledgement */
788 mbox_status = readw(&ha->reg->mailbox[0]);
789
790 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
791 "0x%x\n", ha->host_no, __func__, mbox_status));
792
793 /* Is firmware already booted? */
794 if (mbox_status == 0) {
795 /* F/W not running, must be config by net driver */
796 config_chip = 1;
797 soft_reset = 0;
798 } else {
799 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
800 &ha->reg->ctrl_status);
801 readl(&ha->reg->ctrl_status);
802 writel(set_rmask(CSR_SCSI_COMPLETION_INTR),
803 &ha->reg->ctrl_status);
804 readl(&ha->reg->ctrl_status);
805 spin_unlock_irqrestore(&ha->hardware_lock, flags);
806 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
807 DEBUG2(printk("scsi%ld: %s: Get firmware "
808 "state -- state = 0x%x\n",
809 ha->host_no,
810 __func__, ha->firmware_state));
811 /* F/W is running */
812 if (ha->firmware_state &
813 FW_STATE_CONFIG_WAIT) {
814 DEBUG2(printk("scsi%ld: %s: Firmware "
815 "in known state -- "
816 "config and "
817 "boot, state = 0x%x\n",
818 ha->host_no, __func__,
819 ha->firmware_state));
820 config_chip = 1;
821 soft_reset = 0;
822 }
823 } else {
824 DEBUG2(printk("scsi%ld: %s: Firmware in "
825 "unknown state -- resetting,"
826 " state = "
827 "0x%x\n", ha->host_no, __func__,
828 ha->firmware_state));
829 }
830 spin_lock_irqsave(&ha->hardware_lock, flags);
831 }
832 } else {
833 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
834 "started - resetting\n", ha->host_no, __func__));
835 }
836 spin_unlock_irqrestore(&ha->hardware_lock, flags);
837
838 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
839 ha->host_no, __func__, soft_reset, config_chip));
840 if (soft_reset) {
841 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
842 __func__));
843 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr
844 * lock again, but ok */
845 if (status == QLA_ERROR) {
846 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
847 ha->host_no, __func__));
848 ql4xxx_unlock_drvr(ha);
849 return QLA_ERROR;
850 }
851 config_chip = 1;
852
853 /* Reset clears the semaphore, so acquire again */
854 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
855 return QLA_ERROR;
856 }
857
858 if (config_chip) {
859 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
860 status = qla4xxx_start_firmware_from_flash(ha);
861 }
862
863 ql4xxx_unlock_drvr(ha);
864 if (status == QLA_SUCCESS) {
865 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
866 qla4xxx_get_crash_record(ha);
867 } else {
868 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
869 ha->host_no, __func__));
870 }
871 return status;
872 }
873 /**
874 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware
875 * @ha: pointer to adapter structure
876 *
877 * Since firmware is not running in autoconnect mode the DDB indices should
878 * be freed so that when login happens from user space there are free DDB
879 * indices available.
880 **/
881 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
882 {
883 int max_ddbs;
884 int ret;
885 uint32_t idx = 0, next_idx = 0;
886 uint32_t state = 0, conn_err = 0;
887
888 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
889 MAX_DEV_DB_ENTRIES;
890
891 for (idx = 0; idx < max_ddbs; idx = next_idx) {
892 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
893 &next_idx, &state, &conn_err,
894 NULL, NULL);
895 if (ret == QLA_ERROR) {
896 next_idx++;
897 continue;
898 }
899 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
900 state == DDB_DS_SESSION_FAILED) {
901 DEBUG2(ql4_printk(KERN_INFO, ha,
902 "Freeing DDB index = 0x%x\n", idx));
903 ret = qla4xxx_clear_ddb_entry(ha, idx);
904 if (ret == QLA_ERROR)
905 ql4_printk(KERN_ERR, ha,
906 "Unable to clear DDB index = "
907 "0x%x\n", idx);
908 }
909 if (next_idx == 0)
910 break;
911 }
912 }
913
914 /**
915 * qla4xxx_initialize_adapter - initiailizes hba
916 * @ha: Pointer to host adapter structure.
917 *
918 * This routine parforms all of the steps necessary to initialize the adapter.
919 *
920 **/
921 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
922 {
923 int status = QLA_ERROR;
924
925 ha->eeprom_cmd_data = 0;
926
927 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
928 ha->isp_ops->pci_config(ha);
929
930 ha->isp_ops->disable_intrs(ha);
931
932 /* Initialize the Host adapter request/response queues and firmware */
933 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
934 goto exit_init_hba;
935
936 /*
937 * For ISP83XX, mailbox and IOCB interrupts are enabled separately.
938 * Mailbox interrupts must be enabled prior to issuing any mailbox
939 * command in order to prevent the possibility of losing interrupts
940 * while switching from polling to interrupt mode. IOCB interrupts are
941 * enabled via isp_ops->enable_intrs.
942 */
943 if (is_qla8032(ha) || is_qla8042(ha))
944 qla4_83xx_enable_mbox_intrs(ha);
945
946 if (qla4xxx_about_firmware(ha) == QLA_ERROR)
947 goto exit_init_hba;
948
949 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
950 goto exit_init_hba;
951
952 qla4xxx_init_local_data(ha);
953
954 status = qla4xxx_init_firmware(ha);
955 if (status == QLA_ERROR)
956 goto exit_init_hba;
957
958 if (is_reset == RESET_ADAPTER)
959 qla4xxx_build_ddb_list(ha, is_reset);
960
961 set_bit(AF_ONLINE, &ha->flags);
962 exit_init_hba:
963 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
964 /* Since interrupts are registered in start_firmware for
965 * 80XX, release them here if initialize_adapter fails */
966 qla4xxx_free_irqs(ha);
967 }
968
969 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
970 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
971 return status;
972 }
973
974 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
975 struct ddb_entry *ddb_entry, uint32_t state)
976 {
977 uint32_t old_fw_ddb_device_state;
978 int status = QLA_ERROR;
979
980 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
981 DEBUG2(ql4_printk(KERN_INFO, ha,
982 "%s: DDB - old state = 0x%x, new state = 0x%x for "
983 "index [%d]\n", __func__,
984 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
985
986 ddb_entry->fw_ddb_device_state = state;
987
988 switch (old_fw_ddb_device_state) {
989 case DDB_DS_LOGIN_IN_PROCESS:
990 switch (state) {
991 case DDB_DS_SESSION_ACTIVE:
992 case DDB_DS_DISCOVERY:
993 qla4xxx_update_session_conn_param(ha, ddb_entry);
994 ddb_entry->unblock_sess(ddb_entry->sess);
995 status = QLA_SUCCESS;
996 break;
997 case DDB_DS_SESSION_FAILED:
998 case DDB_DS_NO_CONNECTION_ACTIVE:
999 iscsi_conn_login_event(ddb_entry->conn,
1000 ISCSI_CONN_STATE_FREE);
1001 status = QLA_SUCCESS;
1002 break;
1003 }
1004 break;
1005 case DDB_DS_SESSION_ACTIVE:
1006 case DDB_DS_DISCOVERY:
1007 switch (state) {
1008 case DDB_DS_SESSION_FAILED:
1009 /*
1010 * iscsi_session failure will cause userspace to
1011 * stop the connection which in turn would block the
1012 * iscsi_session and start relogin
1013 */
1014 iscsi_session_failure(ddb_entry->sess->dd_data,
1015 ISCSI_ERR_CONN_FAILED);
1016 status = QLA_SUCCESS;
1017 break;
1018 case DDB_DS_NO_CONNECTION_ACTIVE:
1019 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1020 status = QLA_SUCCESS;
1021 break;
1022 }
1023 break;
1024 case DDB_DS_SESSION_FAILED:
1025 switch (state) {
1026 case DDB_DS_SESSION_ACTIVE:
1027 case DDB_DS_DISCOVERY:
1028 ddb_entry->unblock_sess(ddb_entry->sess);
1029 qla4xxx_update_session_conn_param(ha, ddb_entry);
1030 status = QLA_SUCCESS;
1031 break;
1032 case DDB_DS_SESSION_FAILED:
1033 iscsi_session_failure(ddb_entry->sess->dd_data,
1034 ISCSI_ERR_CONN_FAILED);
1035 status = QLA_SUCCESS;
1036 break;
1037 }
1038 break;
1039 default:
1040 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1041 __func__));
1042 break;
1043 }
1044 return status;
1045 }
1046
1047 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
1048 {
1049 /*
1050 * This triggers a relogin. After the relogin_timer
1051 * expires, the relogin gets scheduled. We must wait a
1052 * minimum amount of time since receiving an 0x8014 AEN
1053 * with failed device_state or a logout response before
1054 * we can issue another relogin.
1055 *
1056 * Firmware pads this timeout: (time2wait +1).
1057 * Driver retry to login should be longer than F/W.
1058 * Otherwise F/W will fail
1059 * set_ddb() mbx cmd with 0x4005 since it still
1060 * counting down its time2wait.
1061 */
1062 atomic_set(&ddb_entry->relogin_timer, 0);
1063 atomic_set(&ddb_entry->retry_relogin_timer,
1064 ddb_entry->default_time2wait + 4);
1065
1066 }
1067
1068 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1069 struct ddb_entry *ddb_entry, uint32_t state)
1070 {
1071 uint32_t old_fw_ddb_device_state;
1072 int status = QLA_ERROR;
1073
1074 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1075 DEBUG2(ql4_printk(KERN_INFO, ha,
1076 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1077 "index [%d]\n", __func__,
1078 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1079
1080 ddb_entry->fw_ddb_device_state = state;
1081
1082 switch (old_fw_ddb_device_state) {
1083 case DDB_DS_LOGIN_IN_PROCESS:
1084 case DDB_DS_NO_CONNECTION_ACTIVE:
1085 switch (state) {
1086 case DDB_DS_SESSION_ACTIVE:
1087 ddb_entry->unblock_sess(ddb_entry->sess);
1088 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1089 status = QLA_SUCCESS;
1090 break;
1091 case DDB_DS_SESSION_FAILED:
1092 iscsi_block_session(ddb_entry->sess);
1093 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1094 qla4xxx_arm_relogin_timer(ddb_entry);
1095 status = QLA_SUCCESS;
1096 break;
1097 }
1098 break;
1099 case DDB_DS_SESSION_ACTIVE:
1100 switch (state) {
1101 case DDB_DS_SESSION_FAILED:
1102 iscsi_block_session(ddb_entry->sess);
1103 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1104 qla4xxx_arm_relogin_timer(ddb_entry);
1105 status = QLA_SUCCESS;
1106 break;
1107 }
1108 break;
1109 case DDB_DS_SESSION_FAILED:
1110 switch (state) {
1111 case DDB_DS_SESSION_ACTIVE:
1112 ddb_entry->unblock_sess(ddb_entry->sess);
1113 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1114 status = QLA_SUCCESS;
1115 break;
1116 case DDB_DS_SESSION_FAILED:
1117 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1118 qla4xxx_arm_relogin_timer(ddb_entry);
1119 status = QLA_SUCCESS;
1120 break;
1121 }
1122 break;
1123 default:
1124 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1125 __func__));
1126 break;
1127 }
1128 return status;
1129 }
1130
1131 /**
1132 * qla4xxx_process_ddb_changed - process ddb state change
1133 * @ha - Pointer to host adapter structure.
1134 * @fw_ddb_index - Firmware's device database index
1135 * @state - Device state
1136 *
1137 * This routine processes a Decive Database Changed AEN Event.
1138 **/
1139 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
1140 uint32_t fw_ddb_index,
1141 uint32_t state, uint32_t conn_err)
1142 {
1143 struct ddb_entry *ddb_entry;
1144 int status = QLA_ERROR;
1145
1146 /* check for out of range index */
1147 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1148 goto exit_ddb_event;
1149
1150 /* Get the corresponging ddb entry */
1151 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1152 /* Device does not currently exist in our database. */
1153 if (ddb_entry == NULL) {
1154 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
1155 __func__, fw_ddb_index);
1156
1157 if (state == DDB_DS_NO_CONNECTION_ACTIVE)
1158 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1159
1160 goto exit_ddb_event;
1161 }
1162
1163 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
1164
1165 exit_ddb_event:
1166 return status;
1167 }
1168
1169 /**
1170 * qla4xxx_login_flash_ddb - Login to target (DDB)
1171 * @cls_session: Pointer to the session to login
1172 *
1173 * This routine logins to the target.
1174 * Issues setddb and conn open mbx
1175 **/
1176 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
1177 {
1178 struct iscsi_session *sess;
1179 struct ddb_entry *ddb_entry;
1180 struct scsi_qla_host *ha;
1181 struct dev_db_entry *fw_ddb_entry = NULL;
1182 dma_addr_t fw_ddb_dma;
1183 uint32_t mbx_sts = 0;
1184 int ret;
1185
1186 sess = cls_session->dd_data;
1187 ddb_entry = sess->dd_data;
1188 ha = ddb_entry->ha;
1189
1190 if (!test_bit(AF_LINK_UP, &ha->flags))
1191 return;
1192
1193 if (ddb_entry->ddb_type != FLASH_DDB) {
1194 DEBUG2(ql4_printk(KERN_INFO, ha,
1195 "Skipping login to non FLASH DB"));
1196 goto exit_login;
1197 }
1198
1199 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
1200 &fw_ddb_dma);
1201 if (fw_ddb_entry == NULL) {
1202 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
1203 goto exit_login;
1204 }
1205
1206 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
1207 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
1208 if (ret == QLA_ERROR)
1209 goto exit_login;
1210
1211 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1212 ha->tot_ddbs++;
1213 }
1214
1215 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
1216 sizeof(struct dev_db_entry));
1217 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
1218
1219 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1220 fw_ddb_dma, &mbx_sts);
1221 if (ret == QLA_ERROR) {
1222 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
1223 goto exit_login;
1224 }
1225
1226 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1227 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1228 if (ret == QLA_ERROR) {
1229 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1230 sess->targetname);
1231 goto exit_login;
1232 }
1233
1234 exit_login:
1235 if (fw_ddb_entry)
1236 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
1237 }
1238
Linus' kernel tree