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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / scsi / qla4xxx / ql4_init.c
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 static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha,
286 struct qla4_8xxx_minidump_template_hdr *md_hdr)
287 {
288 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET :
289 QLA83XX_TEMPLATE_CAP_OFFSET;
290 int rval = 1;
291 uint32_t *cap_offset;
292
293 cap_offset = (uint32_t *)((char *)md_hdr + offset);
294
295 if (!(le32_to_cpu(*cap_offset) & BIT_0)) {
296 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n",
297 *cap_offset);
298 rval = 0;
299 }
300
301 return rval;
302 }
303
304 /**
305 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
306 * @ha: pointer to host adapter structure.
307 **/
308 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
309 {
310 int status;
311 uint32_t capture_debug_level;
312 int hdr_entry_bit, k;
313 void *md_tmp;
314 dma_addr_t md_tmp_dma;
315 struct qla4_8xxx_minidump_template_hdr *md_hdr;
316 int dma_capable;
317
318 if (ha->fw_dump) {
319 ql4_printk(KERN_WARNING, ha,
320 "Firmware dump previously allocated.\n");
321 return;
322 }
323
324 status = qla4xxx_req_template_size(ha);
325 if (status != QLA_SUCCESS) {
326 ql4_printk(KERN_INFO, ha,
327 "scsi%ld: Failed to get template size\n",
328 ha->host_no);
329 return;
330 }
331
332 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
333
334 /* Allocate memory for saving the template */
335 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
336 &md_tmp_dma, GFP_KERNEL);
337 if (!md_tmp) {
338 ql4_printk(KERN_INFO, ha,
339 "scsi%ld: Failed to allocate DMA memory\n",
340 ha->host_no);
341 return;
342 }
343
344 /* Request template */
345 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
346 if (status != QLA_SUCCESS) {
347 ql4_printk(KERN_INFO, ha,
348 "scsi%ld: Failed to get minidump template\n",
349 ha->host_no);
350 goto alloc_cleanup;
351 }
352
353 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
354
355 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr);
356
357 capture_debug_level = md_hdr->capture_debug_level;
358
359 /* Get capture mask based on module loadtime setting. */
360 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) ||
361 (ql4xmdcapmask == 0xFF && dma_capable)) {
362 ha->fw_dump_capture_mask = ql4xmdcapmask;
363 } else {
364 if (ql4xmdcapmask == 0xFF)
365 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n");
366 ha->fw_dump_capture_mask = capture_debug_level;
367 }
368
369 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
370
371 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
372 md_hdr->num_of_entries));
373 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
374 ha->fw_dump_tmplt_size));
375 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
376 ha->fw_dump_capture_mask));
377
378 /* Calculate fw_dump_size */
379 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
380 hdr_entry_bit <<= 1, k++) {
381 if (hdr_entry_bit & ha->fw_dump_capture_mask)
382 ha->fw_dump_size += md_hdr->capture_size_array[k];
383 }
384
385 /* Total firmware dump size including command header */
386 ha->fw_dump_size += ha->fw_dump_tmplt_size;
387 ha->fw_dump = vmalloc(ha->fw_dump_size);
388 if (!ha->fw_dump)
389 goto alloc_cleanup;
390
391 DEBUG2(ql4_printk(KERN_INFO, ha,
392 "Minidump Tempalate Size = 0x%x KB\n",
393 ha->fw_dump_tmplt_size));
394 DEBUG2(ql4_printk(KERN_INFO, ha,
395 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
396
397 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
398 ha->fw_dump_tmplt_hdr = ha->fw_dump;
399
400 alloc_cleanup:
401 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
402 md_tmp, md_tmp_dma);
403 }
404
405 static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
406 {
407 uint32_t timeout_count;
408 int ready = 0;
409
410 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
411 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
412 timeout_count--) {
413 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
414 qla4xxx_get_dhcp_ip_address(ha);
415
416 /* Get firmware state. */
417 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
418 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
419 "state\n", ha->host_no, __func__));
420 break;
421 }
422
423 if (ha->firmware_state & FW_STATE_ERROR) {
424 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
425 " occurred\n", ha->host_no, __func__));
426 break;
427
428 }
429 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
430 /*
431 * The firmware has not yet been issued an Initialize
432 * Firmware command, so issue it now.
433 */
434 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
435 break;
436
437 /* Go back and test for ready state - no wait. */
438 continue;
439 }
440
441 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
442 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
443 "AUTOCONNECT in progress\n",
444 ha->host_no, __func__));
445 }
446
447 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
448 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
449 " CONFIGURING IP\n",
450 ha->host_no, __func__));
451 /*
452 * Check for link state after 15 secs and if link is
453 * still DOWN then, cable is unplugged. Ignore "DHCP
454 * in Progress/CONFIGURING IP" bit to check if firmware
455 * is in ready state or not after 15 secs.
456 * This is applicable for both 2.x & 3.x firmware
457 */
458 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
459 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
460 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
461 " LINK UP (Cable plugged)\n",
462 ha->host_no, __func__));
463 } else if (ha->firmware_state &
464 (FW_STATE_CONFIGURING_IP |
465 FW_STATE_READY)) {
466 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
467 "LINK DOWN (Cable unplugged)\n",
468 ha->host_no, __func__));
469 ha->firmware_state = FW_STATE_READY;
470 }
471 }
472 }
473
474 if (ha->firmware_state == FW_STATE_READY) {
475 /* If DHCP IP Addr is available, retrieve it now. */
476 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
477 &ha->dpc_flags))
478 qla4xxx_get_dhcp_ip_address(ha);
479
480 if (!qla4xxx_wait_for_ip_config(ha) ||
481 timeout_count == 1) {
482 DEBUG2(ql4_printk(KERN_INFO, ha,
483 "Firmware Ready..\n"));
484 /* The firmware is ready to process SCSI
485 commands. */
486 DEBUG2(ql4_printk(KERN_INFO, ha,
487 "scsi%ld: %s: MEDIA TYPE"
488 " - %s\n", ha->host_no,
489 __func__, (ha->addl_fw_state &
490 FW_ADDSTATE_OPTICAL_MEDIA)
491 != 0 ? "OPTICAL" : "COPPER"));
492 DEBUG2(ql4_printk(KERN_INFO, ha,
493 "scsi%ld: %s: DHCPv4 STATE"
494 " Enabled %s\n", ha->host_no,
495 __func__, (ha->addl_fw_state &
496 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
497 "YES" : "NO"));
498 DEBUG2(ql4_printk(KERN_INFO, ha,
499 "scsi%ld: %s: LINK %s\n",
500 ha->host_no, __func__,
501 (ha->addl_fw_state &
502 FW_ADDSTATE_LINK_UP) != 0 ?
503 "UP" : "DOWN"));
504 DEBUG2(ql4_printk(KERN_INFO, ha,
505 "scsi%ld: %s: iSNS Service "
506 "Started %s\n",
507 ha->host_no, __func__,
508 (ha->addl_fw_state &
509 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
510 "YES" : "NO"));
511
512 ready = 1;
513 break;
514 }
515 }
516 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
517 "seconds expired= %d\n", ha->host_no, __func__,
518 ha->firmware_state, ha->addl_fw_state,
519 timeout_count));
520 if (is_qla4032(ha) &&
521 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
522 (timeout_count < ADAPTER_INIT_TOV - 5)) {
523 break;
524 }
525
526 msleep(1000);
527 } /* end of for */
528
529 if (timeout_count <= 0)
530 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
531 ha->host_no, __func__));
532
533 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
534 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
535 "it's waiting to configure an IP address\n",
536 ha->host_no, __func__));
537 ready = 1;
538 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
539 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
540 "auto-discovery still in process\n",
541 ha->host_no, __func__));
542 ready = 1;
543 }
544
545 return ready;
546 }
547
548 /**
549 * qla4xxx_init_firmware - initializes the firmware.
550 * @ha: pointer to host adapter structure.
551 *
552 **/
553 static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
554 {
555 int status = QLA_ERROR;
556
557 if (is_aer_supported(ha) &&
558 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
559 return status;
560
561 /* For 82xx, stop firmware before initializing because if BIOS
562 * has previously initialized firmware, then driver's initialize
563 * firmware will fail. */
564 if (is_qla80XX(ha))
565 qla4_8xxx_stop_firmware(ha);
566
567 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
568 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
569 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
570 "control block\n", ha->host_no, __func__));
571 return status;
572 }
573
574 if (!qla4xxx_fw_ready(ha))
575 return status;
576
577 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
578 qla4xxx_alloc_fw_dump(ha);
579
580 return qla4xxx_get_firmware_status(ha);
581 }
582
583 static void qla4xxx_set_model_info(struct scsi_qla_host *ha)
584 {
585 uint16_t board_id_string[8];
586 int i;
587 int size = sizeof(ha->nvram->isp4022.boardIdStr);
588 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;
589
590 for (i = 0; i < (size / 2) ; i++) {
591 board_id_string[i] = rd_nvram_word(ha, offset);
592 offset += 1;
593 }
594
595 memcpy(ha->model_name, board_id_string, size);
596 }
597
598 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
599 {
600 unsigned long flags;
601 union external_hw_config_reg extHwConfig;
602
603 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
604 __func__));
605 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
606 return QLA_ERROR;
607 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
608 ql4xxx_unlock_flash(ha);
609 return QLA_ERROR;
610 }
611
612 /* Get EEPRom Parameters from NVRAM and validate */
613 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
614 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
615 spin_lock_irqsave(&ha->hardware_lock, flags);
616 extHwConfig.Asuint32_t =
617 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
618 spin_unlock_irqrestore(&ha->hardware_lock, flags);
619 } else {
620 ql4_printk(KERN_WARNING, ha,
621 "scsi%ld: %s: EEProm checksum invalid. "
622 "Please update your EEPROM\n", ha->host_no,
623 __func__);
624
625 /* Attempt to set defaults */
626 if (is_qla4010(ha))
627 extHwConfig.Asuint32_t = 0x1912;
628 else if (is_qla4022(ha) | is_qla4032(ha))
629 extHwConfig.Asuint32_t = 0x0023;
630 else
631 return QLA_ERROR;
632 }
633
634 if (is_qla4022(ha) || is_qla4032(ha))
635 qla4xxx_set_model_info(ha);
636 else
637 strcpy(ha->model_name, "QLA4010");
638
639 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
640 ha->host_no, __func__, extHwConfig.Asuint32_t));
641
642 spin_lock_irqsave(&ha->hardware_lock, flags);
643 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
644 readl(isp_ext_hw_conf(ha));
645 spin_unlock_irqrestore(&ha->hardware_lock, flags);
646
647 ql4xxx_unlock_nvram(ha);
648 ql4xxx_unlock_flash(ha);
649
650 return QLA_SUCCESS;
651 }
652
653 /**
654 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
655 * @ha: HA context
656 */
657 void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
658 {
659 pci_set_master(ha->pdev);
660 }
661
662 void qla4xxx_pci_config(struct scsi_qla_host *ha)
663 {
664 uint16_t w;
665 int status;
666
667 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
668
669 pci_set_master(ha->pdev);
670 status = pci_set_mwi(ha->pdev);
671 /*
672 * We want to respect framework's setting of PCI configuration space
673 * command register and also want to make sure that all bits of
674 * interest to us are properly set in command register.
675 */
676 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
677 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
678 w &= ~PCI_COMMAND_INTX_DISABLE;
679 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
680 }
681
682 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
683 {
684 int status = QLA_ERROR;
685 unsigned long max_wait_time;
686 unsigned long flags;
687 uint32_t mbox_status;
688
689 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
690
691 /*
692 * Start firmware from flash ROM
693 *
694 * WORKAROUND: Stuff a non-constant value that the firmware can
695 * use as a seed for a random number generator in MB7 prior to
696 * setting BOOT_ENABLE. Fixes problem where the TCP
697 * connections use the same TCP ports after each reboot,
698 * causing some connections to not get re-established.
699 */
700 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
701 ha->host_no, __func__));
702
703 spin_lock_irqsave(&ha->hardware_lock, flags);
704 writel(jiffies, &ha->reg->mailbox[7]);
705 if (is_qla4022(ha) | is_qla4032(ha))
706 writel(set_rmask(NVR_WRITE_ENABLE),
707 &ha->reg->u1.isp4022.nvram);
708
709 writel(2, &ha->reg->mailbox[6]);
710 readl(&ha->reg->mailbox[6]);
711
712 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
713 readl(&ha->reg->ctrl_status);
714 spin_unlock_irqrestore(&ha->hardware_lock, flags);
715
716 /* Wait for firmware to come UP. */
717 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
718 "boot firmware to complete...\n",
719 ha->host_no, __func__, FIRMWARE_UP_TOV));
720 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
721 do {
722 uint32_t ctrl_status;
723
724 spin_lock_irqsave(&ha->hardware_lock, flags);
725 ctrl_status = readw(&ha->reg->ctrl_status);
726 mbox_status = readw(&ha->reg->mailbox[0]);
727 spin_unlock_irqrestore(&ha->hardware_lock, flags);
728
729 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
730 break;
731 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
732 break;
733
734 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
735 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n",
736 ha->host_no, __func__, ctrl_status, max_wait_time));
737
738 msleep_interruptible(250);
739 } while (!time_after_eq(jiffies, max_wait_time));
740
741 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
742 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
743 ha->host_no, __func__));
744
745 spin_lock_irqsave(&ha->hardware_lock, flags);
746 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
747 &ha->reg->ctrl_status);
748 readl(&ha->reg->ctrl_status);
749 spin_unlock_irqrestore(&ha->hardware_lock, flags);
750
751 status = QLA_SUCCESS;
752 } else {
753 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
754 "- mbox status 0x%x\n", ha->host_no, __func__,
755 mbox_status);
756 status = QLA_ERROR;
757 }
758 return status;
759 }
760
761 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
762 {
763 #define QL4_LOCK_DRVR_WAIT 60
764 #define QL4_LOCK_DRVR_SLEEP 1
765
766 int drvr_wait = QL4_LOCK_DRVR_WAIT;
767 while (drvr_wait) {
768 if (ql4xxx_lock_drvr(a) == 0) {
769 ssleep(QL4_LOCK_DRVR_SLEEP);
770 if (drvr_wait) {
771 DEBUG2(printk("scsi%ld: %s: Waiting for "
772 "Global Init Semaphore(%d)...\n",
773 a->host_no,
774 __func__, drvr_wait));
775 }
776 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
777 } else {
778 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
779 "acquired\n", a->host_no, __func__));
780 return QLA_SUCCESS;
781 }
782 }
783 return QLA_ERROR;
784 }
785
786 /**
787 * qla4xxx_start_firmware - starts qla4xxx firmware
788 * @ha: Pointer to host adapter structure.
789 *
790 * This routine performs the necessary steps to start the firmware for
791 * the QLA4010 adapter.
792 **/
793 int qla4xxx_start_firmware(struct scsi_qla_host *ha)
794 {
795 unsigned long flags = 0;
796 uint32_t mbox_status;
797 int status = QLA_ERROR;
798 int soft_reset = 1;
799 int config_chip = 0;
800
801 if (is_qla4022(ha) | is_qla4032(ha))
802 ql4xxx_set_mac_number(ha);
803
804 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
805 return QLA_ERROR;
806
807 spin_lock_irqsave(&ha->hardware_lock, flags);
808
809 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
810 __func__, readw(isp_port_ctrl(ha))));
811 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
812 __func__, readw(isp_port_status(ha))));
813
814 /* Is Hardware already initialized? */
815 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
816 DEBUG(printk("scsi%ld: %s: Hardware has already been "
817 "initialized\n", ha->host_no, __func__));
818
819 /* Receive firmware boot acknowledgement */
820 mbox_status = readw(&ha->reg->mailbox[0]);
821
822 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
823 "0x%x\n", ha->host_no, __func__, mbox_status));
824
825 /* Is firmware already booted? */
826 if (mbox_status == 0) {
827 /* F/W not running, must be config by net driver */
828 config_chip = 1;
829 soft_reset = 0;
830 } else {
831 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
832 &ha->reg->ctrl_status);
833 readl(&ha->reg->ctrl_status);
834 writel(set_rmask(CSR_SCSI_COMPLETION_INTR),
835 &ha->reg->ctrl_status);
836 readl(&ha->reg->ctrl_status);
837 spin_unlock_irqrestore(&ha->hardware_lock, flags);
838 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
839 DEBUG2(printk("scsi%ld: %s: Get firmware "
840 "state -- state = 0x%x\n",
841 ha->host_no,
842 __func__, ha->firmware_state));
843 /* F/W is running */
844 if (ha->firmware_state &
845 FW_STATE_CONFIG_WAIT) {
846 DEBUG2(printk("scsi%ld: %s: Firmware "
847 "in known state -- "
848 "config and "
849 "boot, state = 0x%x\n",
850 ha->host_no, __func__,
851 ha->firmware_state));
852 config_chip = 1;
853 soft_reset = 0;
854 }
855 } else {
856 DEBUG2(printk("scsi%ld: %s: Firmware in "
857 "unknown state -- resetting,"
858 " state = "
859 "0x%x\n", ha->host_no, __func__,
860 ha->firmware_state));
861 }
862 spin_lock_irqsave(&ha->hardware_lock, flags);
863 }
864 } else {
865 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
866 "started - resetting\n", ha->host_no, __func__));
867 }
868 spin_unlock_irqrestore(&ha->hardware_lock, flags);
869
870 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
871 ha->host_no, __func__, soft_reset, config_chip));
872 if (soft_reset) {
873 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
874 __func__));
875 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr
876 * lock again, but ok */
877 if (status == QLA_ERROR) {
878 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
879 ha->host_no, __func__));
880 ql4xxx_unlock_drvr(ha);
881 return QLA_ERROR;
882 }
883 config_chip = 1;
884
885 /* Reset clears the semaphore, so acquire again */
886 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
887 return QLA_ERROR;
888 }
889
890 if (config_chip) {
891 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
892 status = qla4xxx_start_firmware_from_flash(ha);
893 }
894
895 ql4xxx_unlock_drvr(ha);
896 if (status == QLA_SUCCESS) {
897 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
898 qla4xxx_get_crash_record(ha);
899
900 qla4xxx_init_rings(ha);
901 } else {
902 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
903 ha->host_no, __func__));
904 }
905 return status;
906 }
907 /**
908 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware
909 * @ha: pointer to adapter structure
910 *
911 * Since firmware is not running in autoconnect mode the DDB indices should
912 * be freed so that when login happens from user space there are free DDB
913 * indices available.
914 **/
915 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
916 {
917 int max_ddbs;
918 int ret;
919 uint32_t idx = 0, next_idx = 0;
920 uint32_t state = 0, conn_err = 0;
921
922 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
923 MAX_DEV_DB_ENTRIES;
924
925 for (idx = 0; idx < max_ddbs; idx = next_idx) {
926 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
927 &next_idx, &state, &conn_err,
928 NULL, NULL);
929 if (ret == QLA_ERROR) {
930 next_idx++;
931 continue;
932 }
933 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
934 state == DDB_DS_SESSION_FAILED) {
935 DEBUG2(ql4_printk(KERN_INFO, ha,
936 "Freeing DDB index = 0x%x\n", idx));
937 ret = qla4xxx_clear_ddb_entry(ha, idx);
938 if (ret == QLA_ERROR)
939 ql4_printk(KERN_ERR, ha,
940 "Unable to clear DDB index = "
941 "0x%x\n", idx);
942 }
943 if (next_idx == 0)
944 break;
945 }
946 }
947
948 /**
949 * qla4xxx_initialize_adapter - initiailizes hba
950 * @ha: Pointer to host adapter structure.
951 *
952 * This routine parforms all of the steps necessary to initialize the adapter.
953 *
954 **/
955 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
956 {
957 int status = QLA_ERROR;
958
959 ha->eeprom_cmd_data = 0;
960
961 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
962 ha->isp_ops->pci_config(ha);
963
964 ha->isp_ops->disable_intrs(ha);
965
966 /* Initialize the Host adapter request/response queues and firmware */
967 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
968 goto exit_init_hba;
969
970 /*
971 * For ISP83XX, mailbox and IOCB interrupts are enabled separately.
972 * Mailbox interrupts must be enabled prior to issuing any mailbox
973 * command in order to prevent the possibility of losing interrupts
974 * while switching from polling to interrupt mode. IOCB interrupts are
975 * enabled via isp_ops->enable_intrs.
976 */
977 if (is_qla8032(ha) || is_qla8042(ha))
978 qla4_83xx_enable_mbox_intrs(ha);
979
980 if (qla4xxx_about_firmware(ha) == QLA_ERROR)
981 goto exit_init_hba;
982
983 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
984 goto exit_init_hba;
985
986 qla4xxx_init_local_data(ha);
987
988 status = qla4xxx_init_firmware(ha);
989 if (status == QLA_ERROR)
990 goto exit_init_hba;
991
992 if (is_reset == RESET_ADAPTER)
993 qla4xxx_build_ddb_list(ha, is_reset);
994
995 set_bit(AF_ONLINE, &ha->flags);
996
997 exit_init_hba:
998 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
999 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
1000 return status;
1001 }
1002
1003 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1004 struct ddb_entry *ddb_entry, uint32_t state)
1005 {
1006 uint32_t old_fw_ddb_device_state;
1007 int status = QLA_ERROR;
1008
1009 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1010 DEBUG2(ql4_printk(KERN_INFO, ha,
1011 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1012 "index [%d]\n", __func__,
1013 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1014
1015 ddb_entry->fw_ddb_device_state = state;
1016
1017 switch (old_fw_ddb_device_state) {
1018 case DDB_DS_LOGIN_IN_PROCESS:
1019 switch (state) {
1020 case DDB_DS_SESSION_ACTIVE:
1021 case DDB_DS_DISCOVERY:
1022 qla4xxx_update_session_conn_param(ha, ddb_entry);
1023 ddb_entry->unblock_sess(ddb_entry->sess);
1024 status = QLA_SUCCESS;
1025 break;
1026 case DDB_DS_SESSION_FAILED:
1027 case DDB_DS_NO_CONNECTION_ACTIVE:
1028 iscsi_conn_login_event(ddb_entry->conn,
1029 ISCSI_CONN_STATE_FREE);
1030 status = QLA_SUCCESS;
1031 break;
1032 }
1033 break;
1034 case DDB_DS_SESSION_ACTIVE:
1035 case DDB_DS_DISCOVERY:
1036 switch (state) {
1037 case DDB_DS_SESSION_FAILED:
1038 /*
1039 * iscsi_session failure will cause userspace to
1040 * stop the connection which in turn would block the
1041 * iscsi_session and start relogin
1042 */
1043 iscsi_session_failure(ddb_entry->sess->dd_data,
1044 ISCSI_ERR_CONN_FAILED);
1045 status = QLA_SUCCESS;
1046 break;
1047 case DDB_DS_NO_CONNECTION_ACTIVE:
1048 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1049 status = QLA_SUCCESS;
1050 break;
1051 }
1052 break;
1053 case DDB_DS_SESSION_FAILED:
1054 switch (state) {
1055 case DDB_DS_SESSION_ACTIVE:
1056 case DDB_DS_DISCOVERY:
1057 ddb_entry->unblock_sess(ddb_entry->sess);
1058 qla4xxx_update_session_conn_param(ha, ddb_entry);
1059 status = QLA_SUCCESS;
1060 break;
1061 case DDB_DS_SESSION_FAILED:
1062 iscsi_session_failure(ddb_entry->sess->dd_data,
1063 ISCSI_ERR_CONN_FAILED);
1064 status = QLA_SUCCESS;
1065 break;
1066 }
1067 break;
1068 default:
1069 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1070 __func__));
1071 break;
1072 }
1073 return status;
1074 }
1075
1076 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
1077 {
1078 /*
1079 * This triggers a relogin. After the relogin_timer
1080 * expires, the relogin gets scheduled. We must wait a
1081 * minimum amount of time since receiving an 0x8014 AEN
1082 * with failed device_state or a logout response before
1083 * we can issue another relogin.
1084 *
1085 * Firmware pads this timeout: (time2wait +1).
1086 * Driver retry to login should be longer than F/W.
1087 * Otherwise F/W will fail
1088 * set_ddb() mbx cmd with 0x4005 since it still
1089 * counting down its time2wait.
1090 */
1091 atomic_set(&ddb_entry->relogin_timer, 0);
1092 atomic_set(&ddb_entry->retry_relogin_timer,
1093 ddb_entry->default_time2wait + 4);
1094
1095 }
1096
1097 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1098 struct ddb_entry *ddb_entry, uint32_t state)
1099 {
1100 uint32_t old_fw_ddb_device_state;
1101 int status = QLA_ERROR;
1102
1103 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1104 DEBUG2(ql4_printk(KERN_INFO, ha,
1105 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1106 "index [%d]\n", __func__,
1107 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1108
1109 ddb_entry->fw_ddb_device_state = state;
1110
1111 switch (old_fw_ddb_device_state) {
1112 case DDB_DS_LOGIN_IN_PROCESS:
1113 case DDB_DS_NO_CONNECTION_ACTIVE:
1114 switch (state) {
1115 case DDB_DS_SESSION_ACTIVE:
1116 ddb_entry->unblock_sess(ddb_entry->sess);
1117 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1118 status = QLA_SUCCESS;
1119 break;
1120 case DDB_DS_SESSION_FAILED:
1121 iscsi_block_session(ddb_entry->sess);
1122 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1123 qla4xxx_arm_relogin_timer(ddb_entry);
1124 status = QLA_SUCCESS;
1125 break;
1126 }
1127 break;
1128 case DDB_DS_SESSION_ACTIVE:
1129 switch (state) {
1130 case DDB_DS_SESSION_FAILED:
1131 iscsi_block_session(ddb_entry->sess);
1132 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1133 qla4xxx_arm_relogin_timer(ddb_entry);
1134 status = QLA_SUCCESS;
1135 break;
1136 }
1137 break;
1138 case DDB_DS_SESSION_FAILED:
1139 switch (state) {
1140 case DDB_DS_SESSION_ACTIVE:
1141 ddb_entry->unblock_sess(ddb_entry->sess);
1142 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1143 status = QLA_SUCCESS;
1144 break;
1145 case DDB_DS_SESSION_FAILED:
1146 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1147 qla4xxx_arm_relogin_timer(ddb_entry);
1148 status = QLA_SUCCESS;
1149 break;
1150 }
1151 break;
1152 default:
1153 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1154 __func__));
1155 break;
1156 }
1157 return status;
1158 }
1159
1160 /**
1161 * qla4xxx_process_ddb_changed - process ddb state change
1162 * @ha - Pointer to host adapter structure.
1163 * @fw_ddb_index - Firmware's device database index
1164 * @state - Device state
1165 *
1166 * This routine processes a Decive Database Changed AEN Event.
1167 **/
1168 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
1169 uint32_t fw_ddb_index,
1170 uint32_t state, uint32_t conn_err)
1171 {
1172 struct ddb_entry *ddb_entry;
1173 int status = QLA_ERROR;
1174
1175 /* check for out of range index */
1176 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1177 goto exit_ddb_event;
1178
1179 /* Get the corresponging ddb entry */
1180 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1181 /* Device does not currently exist in our database. */
1182 if (ddb_entry == NULL) {
1183 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
1184 __func__, fw_ddb_index);
1185
1186 if (state == DDB_DS_NO_CONNECTION_ACTIVE)
1187 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1188
1189 goto exit_ddb_event;
1190 }
1191
1192 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
1193
1194 exit_ddb_event:
1195 return status;
1196 }
1197
1198 /**
1199 * qla4xxx_login_flash_ddb - Login to target (DDB)
1200 * @cls_session: Pointer to the session to login
1201 *
1202 * This routine logins to the target.
1203 * Issues setddb and conn open mbx
1204 **/
1205 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
1206 {
1207 struct iscsi_session *sess;
1208 struct ddb_entry *ddb_entry;
1209 struct scsi_qla_host *ha;
1210 struct dev_db_entry *fw_ddb_entry = NULL;
1211 dma_addr_t fw_ddb_dma;
1212 uint32_t mbx_sts = 0;
1213 int ret;
1214
1215 sess = cls_session->dd_data;
1216 ddb_entry = sess->dd_data;
1217 ha = ddb_entry->ha;
1218
1219 if (!test_bit(AF_LINK_UP, &ha->flags))
1220 return;
1221
1222 if (ddb_entry->ddb_type != FLASH_DDB) {
1223 DEBUG2(ql4_printk(KERN_INFO, ha,
1224 "Skipping login to non FLASH DB"));
1225 goto exit_login;
1226 }
1227
1228 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
1229 &fw_ddb_dma);
1230 if (fw_ddb_entry == NULL) {
1231 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
1232 goto exit_login;
1233 }
1234
1235 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
1236 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
1237 if (ret == QLA_ERROR)
1238 goto exit_login;
1239
1240 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1241 ha->tot_ddbs++;
1242 }
1243
1244 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
1245 sizeof(struct dev_db_entry));
1246 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
1247
1248 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1249 fw_ddb_dma, &mbx_sts);
1250 if (ret == QLA_ERROR) {
1251 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
1252 goto exit_login;
1253 }
1254
1255 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1256 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1257 if (ret == QLA_ERROR) {
1258 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1259 sess->targetname);
1260 goto exit_login;
1261 }
1262
1263 exit_login:
1264 if (fw_ddb_entry)
1265 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
1266 }
1267
Linux kernel - Deliverables
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