?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
drm/client: Fix drm client endless Kconfig loop
[drm/drm-misc.git] / drivers / scsi / qla4xxx / ql4_init.c
blob301bc09c8365090baa369633bcdcc4806d6fc424
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic iSCSI HBA Driver
4 * Copyright (c) 2003-2013 QLogic Corporation
5 */
6
7 #include <scsi/iscsi_if.h>
8 #include "ql4_def.h"
9 #include "ql4_glbl.h"
10 #include "ql4_dbg.h"
11 #include "ql4_inline.h"
12
13 static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
14 {
15 uint32_t value;
16 unsigned long flags;
17
18 /* Get the function number */
19 spin_lock_irqsave(&ha->hardware_lock, flags);
20 value = readw(&ha->reg->ctrl_status);
21 spin_unlock_irqrestore(&ha->hardware_lock, flags);
22
23 switch (value & ISP_CONTROL_FN_MASK) {
24 case ISP_CONTROL_FN0_SCSI:
25 ha->mac_index = 1;
26 break;
27 case ISP_CONTROL_FN1_SCSI:
28 ha->mac_index = 3;
29 break;
30 default:
31 DEBUG2(printk("scsi%ld: %s: Invalid function number, "
32 "ispControlStatus = 0x%x\n", ha->host_no,
33 __func__, value));
34 break;
35 }
36 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
37 ha->mac_index));
38 }
39
40 /**
41 * qla4xxx_free_ddb - deallocate ddb
42 * @ha: pointer to host adapter structure.
43 * @ddb_entry: pointer to device database entry
44 *
45 * This routine marks a DDB entry INVALID
46 **/
47 void qla4xxx_free_ddb(struct scsi_qla_host *ha,
48 struct ddb_entry *ddb_entry)
49 {
50 /* Remove device pointer from index mapping arrays */
51 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
52 (struct ddb_entry *) INVALID_ENTRY;
53 ha->tot_ddbs--;
54 }
55
56 /**
57 * qla4xxx_init_response_q_entries() - Initializes response queue entries.
58 * @ha: HA context
59 *
60 * Beginning of request ring has initialization control block already built
61 * by nvram config routine.
62 **/
63 static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)
64 {
65 uint16_t cnt;
66 struct response *pkt;
67
68 pkt = (struct response *)ha->response_ptr;
69 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {
70 pkt->signature = RESPONSE_PROCESSED;
71 pkt++;
72 }
73 }
74
75 /**
76 * qla4xxx_init_rings - initialize hw queues
77 * @ha: pointer to host adapter structure.
78 *
79 * This routine initializes the internal queues for the specified adapter.
80 * The QLA4010 requires us to restart the queues at index 0.
81 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
82 **/
83 int qla4xxx_init_rings(struct scsi_qla_host *ha)
84 {
85 unsigned long flags = 0;
86 int i;
87
88 /* Initialize request queue. */
89 spin_lock_irqsave(&ha->hardware_lock, flags);
90 ha->request_out = 0;
91 ha->request_in = 0;
92 ha->request_ptr = &ha->request_ring[ha->request_in];
93 ha->req_q_count = REQUEST_QUEUE_DEPTH;
94
95 /* Initialize response queue. */
96 ha->response_in = 0;
97 ha->response_out = 0;
98 ha->response_ptr = &ha->response_ring[ha->response_out];
99
100 if (is_qla8022(ha)) {
101 writel(0,
102 (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out);
103 writel(0,
104 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in);
105 writel(0,
106 (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out);
107 } else if (is_qla8032(ha) || is_qla8042(ha)) {
108 writel(0,
109 (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in);
110 writel(0,
111 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in);
112 writel(0,
113 (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out);
114 } else {
115 /*
116 * Initialize DMA Shadow registers. The firmware is really
117 * supposed to take care of this, but on some uniprocessor
118 * systems, the shadow registers aren't cleared-- causing
119 * the interrupt_handler to think there are responses to be
120 * processed when there aren't.
121 */
122 ha->shadow_regs->req_q_out = cpu_to_le32(0);
123 ha->shadow_regs->rsp_q_in = cpu_to_le32(0);
124 wmb();
125
126 writel(0, &ha->reg->req_q_in);
127 writel(0, &ha->reg->rsp_q_out);
128 readl(&ha->reg->rsp_q_out);
129 }
130
131 qla4xxx_init_response_q_entries(ha);
132
133 /* Initialize mailbox active array */
134 for (i = 0; i < MAX_MRB; i++)
135 ha->active_mrb_array[i] = NULL;
136
137 spin_unlock_irqrestore(&ha->hardware_lock, flags);
138
139 return QLA_SUCCESS;
140 }
141
142 /**
143 * qla4xxx_get_sys_info - validate adapter MAC address(es)
144 * @ha: pointer to host adapter structure.
145 *
146 **/
147 int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
148 {
149 struct flash_sys_info *sys_info;
150 dma_addr_t sys_info_dma;
151 int status = QLA_ERROR;
152
153 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
154 &sys_info_dma, GFP_KERNEL);
155 if (sys_info == NULL) {
156 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
157 ha->host_no, __func__));
158
159 goto exit_get_sys_info_no_free;
160 }
161
162 /* Get flash sys info */
163 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
164 sizeof(*sys_info)) != QLA_SUCCESS) {
165 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
166 "failed\n", ha->host_no, __func__));
167
168 goto exit_get_sys_info;
169 }
170
171 /* Save M.A.C. address & serial_number */
172 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
173 min(sizeof(ha->my_mac),
174 sizeof(sys_info->physAddr[0].address)));
175 memcpy(ha->serial_number, &sys_info->acSerialNumber,
176 min(sizeof(ha->serial_number),
177 sizeof(sys_info->acSerialNumber)));
178
179 status = QLA_SUCCESS;
180
181 exit_get_sys_info:
182 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
183 sys_info_dma);
184
185 exit_get_sys_info_no_free:
186 return status;
187 }
188
189 /**
190 * qla4xxx_init_local_data - initialize adapter specific local data
191 * @ha: pointer to host adapter structure.
192 *
193 **/
194 static void qla4xxx_init_local_data(struct scsi_qla_host *ha)
195 {
196 /* Initialize aen queue */
197 ha->aen_q_count = MAX_AEN_ENTRIES;
198 }
199
200 static uint8_t
201 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
202 {
203 uint8_t ipv4_wait = 0;
204 uint8_t ipv6_wait = 0;
205 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
206
207 /* If both IPv4 & IPv6 are enabled, possibly only one
208 * IP address may be acquired, so check to see if we
209 * need to wait for another */
210 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
211 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
212 ((ha->addl_fw_state &
213 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
214 ipv4_wait = 1;
215 }
216 if (((ha->ip_config.ipv6_addl_options &
217 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
218 ((ha->ip_config.ipv6_link_local_state ==
219 IP_ADDRSTATE_ACQUIRING) ||
220 (ha->ip_config.ipv6_addr0_state ==
221 IP_ADDRSTATE_ACQUIRING) ||
222 (ha->ip_config.ipv6_addr1_state ==
223 IP_ADDRSTATE_ACQUIRING))) {
224
225 ipv6_wait = 1;
226
227 if ((ha->ip_config.ipv6_link_local_state ==
228 IP_ADDRSTATE_PREFERRED) ||
229 (ha->ip_config.ipv6_addr0_state ==
230 IP_ADDRSTATE_PREFERRED) ||
231 (ha->ip_config.ipv6_addr1_state ==
232 IP_ADDRSTATE_PREFERRED)) {
233 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
234 "Preferred IP configured."
235 " Don't wait!\n", ha->host_no,
236 __func__));
237 ipv6_wait = 0;
238 }
239 if (memcmp(&ha->ip_config.ipv6_default_router_addr,
240 ip_address, IPv6_ADDR_LEN) == 0) {
241 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
242 "No Router configured. "
243 "Don't wait!\n", ha->host_no,
244 __func__));
245 ipv6_wait = 0;
246 }
247 if ((ha->ip_config.ipv6_default_router_state ==
248 IPV6_RTRSTATE_MANUAL) &&
249 (ha->ip_config.ipv6_link_local_state ==
250 IP_ADDRSTATE_TENTATIVE) &&
251 (memcmp(&ha->ip_config.ipv6_link_local_addr,
252 &ha->ip_config.ipv6_default_router_addr, 4) ==
253 0)) {
254 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
255 "IP configured. Don't wait!\n",
256 ha->host_no, __func__));
257 ipv6_wait = 0;
258 }
259 }
260 if (ipv4_wait || ipv6_wait) {
261 DEBUG2(printk("scsi%ld: %s: Wait for additional "
262 "IP(s) \"", ha->host_no, __func__));
263 if (ipv4_wait)
264 DEBUG2(printk("IPv4 "));
265 if (ha->ip_config.ipv6_link_local_state ==
266 IP_ADDRSTATE_ACQUIRING)
267 DEBUG2(printk("IPv6LinkLocal "));
268 if (ha->ip_config.ipv6_addr0_state ==
269 IP_ADDRSTATE_ACQUIRING)
270 DEBUG2(printk("IPv6Addr0 "));
271 if (ha->ip_config.ipv6_addr1_state ==
272 IP_ADDRSTATE_ACQUIRING)
273 DEBUG2(printk("IPv6Addr1 "));
274 DEBUG2(printk("\"\n"));
275 }
276 }
277
278 return ipv4_wait|ipv6_wait;
279 }
280
281 static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha,
282 struct qla4_8xxx_minidump_template_hdr *md_hdr)
283 {
284 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET :
285 QLA83XX_TEMPLATE_CAP_OFFSET;
286 int rval = 1;
287 uint32_t *cap_offset;
288
289 cap_offset = (uint32_t *)((char *)md_hdr + offset);
290
291 if (!(le32_to_cpu(*cap_offset) & BIT_0)) {
292 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n",
293 *cap_offset);
294 rval = 0;
295 }
296
297 return rval;
298 }
299
300 /**
301 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
302 * @ha: pointer to host adapter structure.
303 **/
304 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
305 {
306 int status;
307 uint32_t capture_debug_level;
308 int hdr_entry_bit, k;
309 void *md_tmp;
310 dma_addr_t md_tmp_dma;
311 struct qla4_8xxx_minidump_template_hdr *md_hdr;
312 int dma_capable;
313
314 if (ha->fw_dump) {
315 ql4_printk(KERN_WARNING, ha,
316 "Firmware dump previously allocated.\n");
317 return;
318 }
319
320 status = qla4xxx_req_template_size(ha);
321 if (status != QLA_SUCCESS) {
322 ql4_printk(KERN_INFO, ha,
323 "scsi%ld: Failed to get template size\n",
324 ha->host_no);
325 return;
326 }
327
328 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
329
330 /* Allocate memory for saving the template */
331 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
332 &md_tmp_dma, GFP_KERNEL);
333 if (!md_tmp) {
334 ql4_printk(KERN_INFO, ha,
335 "scsi%ld: Failed to allocate DMA memory\n",
336 ha->host_no);
337 return;
338 }
339
340 /* Request template */
341 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
342 if (status != QLA_SUCCESS) {
343 ql4_printk(KERN_INFO, ha,
344 "scsi%ld: Failed to get minidump template\n",
345 ha->host_no);
346 goto alloc_cleanup;
347 }
348
349 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
350
351 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr);
352
353 capture_debug_level = md_hdr->capture_debug_level;
354
355 /* Get capture mask based on module loadtime setting. */
356 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) ||
357 (ql4xmdcapmask == 0xFF && dma_capable)) {
358 ha->fw_dump_capture_mask = ql4xmdcapmask;
359 } else {
360 if (ql4xmdcapmask == 0xFF)
361 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n");
362 ha->fw_dump_capture_mask = capture_debug_level;
363 }
364
365 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
366
367 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
368 md_hdr->num_of_entries));
369 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
370 ha->fw_dump_tmplt_size));
371 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
372 ha->fw_dump_capture_mask));
373
374 /* Calculate fw_dump_size */
375 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
376 hdr_entry_bit <<= 1, k++) {
377 if (hdr_entry_bit & ha->fw_dump_capture_mask)
378 ha->fw_dump_size += md_hdr->capture_size_array[k];
379 }
380
381 /* Total firmware dump size including command header */
382 ha->fw_dump_size += ha->fw_dump_tmplt_size;
383 ha->fw_dump = vmalloc(ha->fw_dump_size);
384 if (!ha->fw_dump)
385 goto alloc_cleanup;
386
387 DEBUG2(ql4_printk(KERN_INFO, ha,
388 "Minidump Template Size = 0x%x KB\n",
389 ha->fw_dump_tmplt_size));
390 DEBUG2(ql4_printk(KERN_INFO, ha,
391 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
392
393 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
394 ha->fw_dump_tmplt_hdr = ha->fw_dump;
395
396 alloc_cleanup:
397 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
398 md_tmp, md_tmp_dma);
399 }
400
401 static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
402 {
403 uint32_t timeout_count;
404 int ready = 0;
405
406 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
407 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
408 timeout_count--) {
409 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
410 qla4xxx_get_dhcp_ip_address(ha);
411
412 /* Get firmware state. */
413 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
414 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
415 "state\n", ha->host_no, __func__));
416 break;
417 }
418
419 if (ha->firmware_state & FW_STATE_ERROR) {
420 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
421 " occurred\n", ha->host_no, __func__));
422 break;
423
424 }
425 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
426 /*
427 * The firmware has not yet been issued an Initialize
428 * Firmware command, so issue it now.
429 */
430 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
431 break;
432
433 /* Go back and test for ready state - no wait. */
434 continue;
435 }
436
437 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
438 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
439 "AUTOCONNECT in progress\n",
440 ha->host_no, __func__));
441 }
442
443 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
444 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
445 " CONFIGURING IP\n",
446 ha->host_no, __func__));
447 /*
448 * Check for link state after 15 secs and if link is
449 * still DOWN then, cable is unplugged. Ignore "DHCP
450 * in Progress/CONFIGURING IP" bit to check if firmware
451 * is in ready state or not after 15 secs.
452 * This is applicable for both 2.x & 3.x firmware
453 */
454 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
455 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
456 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
457 " LINK UP (Cable plugged)\n",
458 ha->host_no, __func__));
459 } else if (ha->firmware_state &
460 (FW_STATE_CONFIGURING_IP |
461 FW_STATE_READY)) {
462 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
463 "LINK DOWN (Cable unplugged)\n",
464 ha->host_no, __func__));
465 ha->firmware_state = FW_STATE_READY;
466 }
467 }
468 }
469
470 if (ha->firmware_state == FW_STATE_READY) {
471 /* If DHCP IP Addr is available, retrieve it now. */
472 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
473 &ha->dpc_flags))
474 qla4xxx_get_dhcp_ip_address(ha);
475
476 if (!qla4xxx_wait_for_ip_config(ha) ||
477 timeout_count == 1) {
478 DEBUG2(ql4_printk(KERN_INFO, ha,
479 "Firmware Ready..\n"));
480 /* The firmware is ready to process SCSI
481 commands. */
482 DEBUG2(ql4_printk(KERN_INFO, ha,
483 "scsi%ld: %s: MEDIA TYPE"
484 " - %s\n", ha->host_no,
485 __func__, (ha->addl_fw_state &
486 FW_ADDSTATE_OPTICAL_MEDIA)
487 != 0 ? "OPTICAL" : "COPPER"));
488 DEBUG2(ql4_printk(KERN_INFO, ha,
489 "scsi%ld: %s: DHCPv4 STATE"
490 " Enabled %s\n", ha->host_no,
491 __func__, (ha->addl_fw_state &
492 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
493 "YES" : "NO"));
494 DEBUG2(ql4_printk(KERN_INFO, ha,
495 "scsi%ld: %s: LINK %s\n",
496 ha->host_no, __func__,
497 (ha->addl_fw_state &
498 FW_ADDSTATE_LINK_UP) != 0 ?
499 "UP" : "DOWN"));
500 DEBUG2(ql4_printk(KERN_INFO, ha,
501 "scsi%ld: %s: iSNS Service "
502 "Started %s\n",
503 ha->host_no, __func__,
504 (ha->addl_fw_state &
505 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
506 "YES" : "NO"));
507
508 ready = 1;
509 break;
510 }
511 }
512 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
513 "seconds expired= %d\n", ha->host_no, __func__,
514 ha->firmware_state, ha->addl_fw_state,
515 timeout_count));
516 if (is_qla4032(ha) &&
517 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
518 (timeout_count < ADAPTER_INIT_TOV - 5)) {
519 break;
520 }
521
522 msleep(1000);
523 } /* end of for */
524
525 if (timeout_count <= 0)
526 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
527 ha->host_no, __func__));
528
529 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
530 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
531 "it's waiting to configure an IP address\n",
532 ha->host_no, __func__));
533 ready = 1;
534 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
535 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
536 "auto-discovery still in process\n",
537 ha->host_no, __func__));
538 ready = 1;
539 }
540
541 return ready;
542 }
543
544 /**
545 * qla4xxx_init_firmware - initializes the firmware.
546 * @ha: pointer to host adapter structure.
547 *
548 **/
549 static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
550 {
551 int status = QLA_ERROR;
552
553 if (is_aer_supported(ha) &&
554 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
555 return status;
556
557 /* For 82xx, stop firmware before initializing because if BIOS
558 * has previously initialized firmware, then driver's initialize
559 * firmware will fail. */
560 if (is_qla80XX(ha))
561 qla4_8xxx_stop_firmware(ha);
562
563 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
564 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
565 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
566 "control block\n", ha->host_no, __func__));
567 return status;
568 }
569
570 if (!qla4xxx_fw_ready(ha))
571 return status;
572
573 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
574 qla4xxx_alloc_fw_dump(ha);
575
576 return qla4xxx_get_firmware_status(ha);
577 }
578
579 static void qla4xxx_set_model_info(struct scsi_qla_host *ha)
580 {
581 uint16_t board_id_string[8];
582 int i;
583 int size = sizeof(ha->nvram->isp4022.boardIdStr);
584 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;
585
586 for (i = 0; i < (size / 2) ; i++) {
587 board_id_string[i] = rd_nvram_word(ha, offset);
588 offset += 1;
589 }
590
591 memcpy(ha->model_name, board_id_string, size);
592 }
593
594 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
595 {
596 unsigned long flags;
597 union external_hw_config_reg extHwConfig;
598
599 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
600 __func__));
601 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
602 return QLA_ERROR;
603 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
604 ql4xxx_unlock_flash(ha);
605 return QLA_ERROR;
606 }
607
608 /* Get EEPRom Parameters from NVRAM and validate */
609 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
610 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
611 spin_lock_irqsave(&ha->hardware_lock, flags);
612 extHwConfig.Asuint32_t =
613 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
614 spin_unlock_irqrestore(&ha->hardware_lock, flags);
615 } else {
616 ql4_printk(KERN_WARNING, ha,
617 "scsi%ld: %s: EEProm checksum invalid. "
618 "Please update your EEPROM\n", ha->host_no,
619 __func__);
620
621 /* Attempt to set defaults */
622 if (is_qla4010(ha))
623 extHwConfig.Asuint32_t = 0x1912;
624 else if (is_qla4022(ha) | is_qla4032(ha))
625 extHwConfig.Asuint32_t = 0x0023;
626 else
627 return QLA_ERROR;
628 }
629
630 if (is_qla4022(ha) || is_qla4032(ha))
631 qla4xxx_set_model_info(ha);
632 else
633 strcpy(ha->model_name, "QLA4010");
634
635 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
636 ha->host_no, __func__, extHwConfig.Asuint32_t));
637
638 spin_lock_irqsave(&ha->hardware_lock, flags);
639 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
640 readl(isp_ext_hw_conf(ha));
641 spin_unlock_irqrestore(&ha->hardware_lock, flags);
642
643 ql4xxx_unlock_nvram(ha);
644 ql4xxx_unlock_flash(ha);
645
646 return QLA_SUCCESS;
647 }
648
649 /**
650 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
651 * @ha: HA context
652 */
653 void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
654 {
655 pci_set_master(ha->pdev);
656 }
657
658 void qla4xxx_pci_config(struct scsi_qla_host *ha)
659 {
660 uint16_t w;
661 int status;
662
663 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
664
665 pci_set_master(ha->pdev);
666 status = pci_set_mwi(ha->pdev);
667 if (status)
668 ql4_printk(KERN_WARNING, ha, "Failed to set MWI\n");
669
670 /*
671 * We want to respect framework's setting of PCI configuration space
672 * command register and also want to make sure that all bits of
673 * interest to us are properly set in command register.
674 */
675 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
676 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
677 w &= ~PCI_COMMAND_INTX_DISABLE;
678 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
679 }
680
681 static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
682 {
683 int status = QLA_ERROR;
684 unsigned long max_wait_time;
685 unsigned long flags;
686 uint32_t mbox_status;
687
688 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
689
690 /*
691 * Start firmware from flash ROM
692 *
693 * WORKAROUND: Stuff a non-constant value that the firmware can
694 * use as a seed for a random number generator in MB7 prior to
695 * setting BOOT_ENABLE. Fixes problem where the TCP
696 * connections use the same TCP ports after each reboot,
697 * causing some connections to not get re-established.
698 */
699 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
700 ha->host_no, __func__));
701
702 spin_lock_irqsave(&ha->hardware_lock, flags);
703 writel(jiffies, &ha->reg->mailbox[7]);
704 if (is_qla4022(ha) | is_qla4032(ha))
705 writel(set_rmask(NVR_WRITE_ENABLE),
706 &ha->reg->u1.isp4022.nvram);
707
708 writel(2, &ha->reg->mailbox[6]);
709 readl(&ha->reg->mailbox[6]);
710
711 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
712 readl(&ha->reg->ctrl_status);
713 spin_unlock_irqrestore(&ha->hardware_lock, flags);
714
715 /* Wait for firmware to come UP. */
716 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
717 "boot firmware to complete...\n",
718 ha->host_no, __func__, FIRMWARE_UP_TOV));
719 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
720 do {
721 uint32_t ctrl_status;
722
723 spin_lock_irqsave(&ha->hardware_lock, flags);
724 ctrl_status = readw(&ha->reg->ctrl_status);
725 mbox_status = readw(&ha->reg->mailbox[0]);
726 spin_unlock_irqrestore(&ha->hardware_lock, flags);
727
728 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
729 break;
730 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
731 break;
732
733 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
734 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n",
735 ha->host_no, __func__, ctrl_status, max_wait_time));
736
737 msleep_interruptible(250);
738 } while (!time_after_eq(jiffies, max_wait_time));
739
740 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
741 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
742 ha->host_no, __func__));
743
744 spin_lock_irqsave(&ha->hardware_lock, flags);
745 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
746 &ha->reg->ctrl_status);
747 readl(&ha->reg->ctrl_status);
748 spin_unlock_irqrestore(&ha->hardware_lock, flags);
749
750 status = QLA_SUCCESS;
751 } else {
752 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
753 "- mbox status 0x%x\n", ha->host_no, __func__,
754 mbox_status);
755 status = QLA_ERROR;
756 }
757 return status;
758 }
759
760 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
761 {
762 #define QL4_LOCK_DRVR_WAIT 60
763 #define QL4_LOCK_DRVR_SLEEP 1
764
765 int drvr_wait = QL4_LOCK_DRVR_WAIT;
766 while (drvr_wait) {
767 if (ql4xxx_lock_drvr(a) == 0) {
768 ssleep(QL4_LOCK_DRVR_SLEEP);
769 DEBUG2(printk("scsi%ld: %s: Waiting for "
770 "Global Init Semaphore(%d)...\n",
771 a->host_no,
772 __func__, drvr_wait));
773 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
774 } else {
775 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
776 "acquired\n", a->host_no, __func__));
777 return QLA_SUCCESS;
778 }
779 }
780 return QLA_ERROR;
781 }
782
783 /**
784 * qla4xxx_start_firmware - starts qla4xxx firmware
785 * @ha: Pointer to host adapter structure.
786 *
787 * This routine performs the necessary steps to start the firmware for
788 * the QLA4010 adapter.
789 **/
790 int qla4xxx_start_firmware(struct scsi_qla_host *ha)
791 {
792 unsigned long flags = 0;
793 uint32_t mbox_status;
794 int status = QLA_ERROR;
795 int soft_reset = 1;
796 int config_chip = 0;
797
798 if (is_qla4022(ha) | is_qla4032(ha))
799 ql4xxx_set_mac_number(ha);
800
801 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
802 return QLA_ERROR;
803
804 spin_lock_irqsave(&ha->hardware_lock, flags);
805
806 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
807 __func__, readw(isp_port_ctrl(ha))));
808 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
809 __func__, readw(isp_port_status(ha))));
810
811 /* Is Hardware already initialized? */
812 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
813 DEBUG(printk("scsi%ld: %s: Hardware has already been "
814 "initialized\n", ha->host_no, __func__));
815
816 /* Receive firmware boot acknowledgement */
817 mbox_status = readw(&ha->reg->mailbox[0]);
818
819 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
820 "0x%x\n", ha->host_no, __func__, mbox_status));
821
822 /* Is firmware already booted? */
823 if (mbox_status == 0) {
824 /* F/W not running, must be config by net driver */
825 config_chip = 1;
826 soft_reset = 0;
827 } else {
828 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
829 &ha->reg->ctrl_status);
830 readl(&ha->reg->ctrl_status);
831 writel(set_rmask(CSR_SCSI_COMPLETION_INTR),
832 &ha->reg->ctrl_status);
833 readl(&ha->reg->ctrl_status);
834 spin_unlock_irqrestore(&ha->hardware_lock, flags);
835 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
836 DEBUG2(printk("scsi%ld: %s: Get firmware "
837 "state -- state = 0x%x\n",
838 ha->host_no,
839 __func__, ha->firmware_state));
840 /* F/W is running */
841 if (ha->firmware_state &
842 FW_STATE_CONFIG_WAIT) {
843 DEBUG2(printk("scsi%ld: %s: Firmware "
844 "in known state -- "
845 "config and "
846 "boot, state = 0x%x\n",
847 ha->host_no, __func__,
848 ha->firmware_state));
849 config_chip = 1;
850 soft_reset = 0;
851 }
852 } else {
853 DEBUG2(printk("scsi%ld: %s: Firmware in "
854 "unknown state -- resetting,"
855 " state = "
856 "0x%x\n", ha->host_no, __func__,
857 ha->firmware_state));
858 }
859 spin_lock_irqsave(&ha->hardware_lock, flags);
860 }
861 } else {
862 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
863 "started - resetting\n", ha->host_no, __func__));
864 }
865 spin_unlock_irqrestore(&ha->hardware_lock, flags);
866
867 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
868 ha->host_no, __func__, soft_reset, config_chip));
869 if (soft_reset) {
870 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
871 __func__));
872 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr
873 * lock again, but ok */
874 if (status == QLA_ERROR) {
875 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
876 ha->host_no, __func__));
877 ql4xxx_unlock_drvr(ha);
878 return QLA_ERROR;
879 }
880 config_chip = 1;
881
882 /* Reset clears the semaphore, so acquire again */
883 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
884 return QLA_ERROR;
885 }
886
887 if (config_chip) {
888 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
889 status = qla4xxx_start_firmware_from_flash(ha);
890 }
891
892 ql4xxx_unlock_drvr(ha);
893 if (status == QLA_SUCCESS) {
894 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
895 qla4xxx_get_crash_record(ha);
896
897 qla4xxx_init_rings(ha);
898 } else {
899 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
900 ha->host_no, __func__));
901 }
902 return status;
903 }
904 /**
905 * qla4xxx_free_ddb_index - Free DDBs reserved by firmware
906 * @ha: pointer to adapter structure
907 *
908 * Since firmware is not running in autoconnect mode the DDB indices should
909 * be freed so that when login happens from user space there are free DDB
910 * indices available.
911 **/
912 void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
913 {
914 int max_ddbs;
915 int ret;
916 uint32_t idx = 0, next_idx = 0;
917 uint32_t state = 0, conn_err = 0;
918
919 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
920 MAX_DEV_DB_ENTRIES;
921
922 for (idx = 0; idx < max_ddbs; idx = next_idx) {
923 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
924 &next_idx, &state, &conn_err,
925 NULL, NULL);
926 if (ret == QLA_ERROR) {
927 next_idx++;
928 continue;
929 }
930 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
931 state == DDB_DS_SESSION_FAILED) {
932 DEBUG2(ql4_printk(KERN_INFO, ha,
933 "Freeing DDB index = 0x%x\n", idx));
934 ret = qla4xxx_clear_ddb_entry(ha, idx);
935 if (ret == QLA_ERROR)
936 ql4_printk(KERN_ERR, ha,
937 "Unable to clear DDB index = "
938 "0x%x\n", idx);
939 }
940 if (next_idx == 0)
941 break;
942 }
943 }
944
945 /**
946 * qla4xxx_initialize_adapter - initiailizes hba
947 * @ha: Pointer to host adapter structure.
948 * @is_reset: Is this init path or reset path
949 *
950 * This routine parforms all of the steps necessary to initialize the adapter.
951 *
952 **/
953 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
954 {
955 int status = QLA_ERROR;
956
957 ha->eeprom_cmd_data = 0;
958
959 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
960 ha->isp_ops->pci_config(ha);
961
962 ha->isp_ops->disable_intrs(ha);
963
964 /* Initialize the Host adapter request/response queues and firmware */
965 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
966 goto exit_init_hba;
967
968 /*
969 * For ISP83XX, mailbox and IOCB interrupts are enabled separately.
970 * Mailbox interrupts must be enabled prior to issuing any mailbox
971 * command in order to prevent the possibility of losing interrupts
972 * while switching from polling to interrupt mode. IOCB interrupts are
973 * enabled via isp_ops->enable_intrs.
974 */
975 if (is_qla8032(ha) || is_qla8042(ha))
976 qla4_83xx_enable_mbox_intrs(ha);
977
978 if (qla4xxx_about_firmware(ha) == QLA_ERROR)
979 goto exit_init_hba;
980
981 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
982 goto exit_init_hba;
983
984 qla4xxx_init_local_data(ha);
985
986 status = qla4xxx_init_firmware(ha);
987 if (status == QLA_ERROR)
988 goto exit_init_hba;
989
990 if (is_reset == RESET_ADAPTER)
991 qla4xxx_build_ddb_list(ha, is_reset);
992
993 set_bit(AF_ONLINE, &ha->flags);
994
995 exit_init_hba:
996 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
997 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
998 return status;
999 }
1000
1001 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1002 struct ddb_entry *ddb_entry, uint32_t state)
1003 {
1004 uint32_t old_fw_ddb_device_state;
1005 int status = QLA_ERROR;
1006
1007 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1008 DEBUG2(ql4_printk(KERN_INFO, ha,
1009 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1010 "index [%d]\n", __func__,
1011 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1012
1013 ddb_entry->fw_ddb_device_state = state;
1014
1015 switch (old_fw_ddb_device_state) {
1016 case DDB_DS_LOGIN_IN_PROCESS:
1017 switch (state) {
1018 case DDB_DS_SESSION_ACTIVE:
1019 case DDB_DS_DISCOVERY:
1020 qla4xxx_update_session_conn_param(ha, ddb_entry);
1021 ddb_entry->unblock_sess(ddb_entry->sess);
1022 status = QLA_SUCCESS;
1023 break;
1024 case DDB_DS_SESSION_FAILED:
1025 case DDB_DS_NO_CONNECTION_ACTIVE:
1026 iscsi_conn_login_event(ddb_entry->conn,
1027 ISCSI_CONN_STATE_FREE);
1028 status = QLA_SUCCESS;
1029 break;
1030 }
1031 break;
1032 case DDB_DS_SESSION_ACTIVE:
1033 case DDB_DS_DISCOVERY:
1034 switch (state) {
1035 case DDB_DS_SESSION_FAILED:
1036 /*
1037 * iscsi_session failure will cause userspace to
1038 * stop the connection which in turn would block the
1039 * iscsi_session and start relogin
1040 */
1041 iscsi_session_failure(ddb_entry->sess->dd_data,
1042 ISCSI_ERR_CONN_FAILED);
1043 status = QLA_SUCCESS;
1044 break;
1045 case DDB_DS_NO_CONNECTION_ACTIVE:
1046 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1047 status = QLA_SUCCESS;
1048 break;
1049 }
1050 break;
1051 case DDB_DS_SESSION_FAILED:
1052 switch (state) {
1053 case DDB_DS_SESSION_ACTIVE:
1054 case DDB_DS_DISCOVERY:
1055 ddb_entry->unblock_sess(ddb_entry->sess);
1056 qla4xxx_update_session_conn_param(ha, ddb_entry);
1057 status = QLA_SUCCESS;
1058 break;
1059 case DDB_DS_SESSION_FAILED:
1060 iscsi_session_failure(ddb_entry->sess->dd_data,
1061 ISCSI_ERR_CONN_FAILED);
1062 status = QLA_SUCCESS;
1063 break;
1064 }
1065 break;
1066 default:
1067 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1068 __func__));
1069 break;
1070 }
1071 return status;
1072 }
1073
1074 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
1075 {
1076 /*
1077 * This triggers a relogin. After the relogin_timer
1078 * expires, the relogin gets scheduled. We must wait a
1079 * minimum amount of time since receiving an 0x8014 AEN
1080 * with failed device_state or a logout response before
1081 * we can issue another relogin.
1082 *
1083 * Firmware pads this timeout: (time2wait +1).
1084 * Driver retry to login should be longer than F/W.
1085 * Otherwise F/W will fail
1086 * set_ddb() mbx cmd with 0x4005 since it still
1087 * counting down its time2wait.
1088 */
1089 atomic_set(&ddb_entry->relogin_timer, 0);
1090 atomic_set(&ddb_entry->retry_relogin_timer,
1091 ddb_entry->default_time2wait + 4);
1092
1093 }
1094
1095 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1096 struct ddb_entry *ddb_entry, uint32_t state)
1097 {
1098 uint32_t old_fw_ddb_device_state;
1099 int status = QLA_ERROR;
1100
1101 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1102 DEBUG2(ql4_printk(KERN_INFO, ha,
1103 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1104 "index [%d]\n", __func__,
1105 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1106
1107 ddb_entry->fw_ddb_device_state = state;
1108
1109 switch (old_fw_ddb_device_state) {
1110 case DDB_DS_LOGIN_IN_PROCESS:
1111 case DDB_DS_NO_CONNECTION_ACTIVE:
1112 switch (state) {
1113 case DDB_DS_SESSION_ACTIVE:
1114 ddb_entry->unblock_sess(ddb_entry->sess);
1115 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1116 status = QLA_SUCCESS;
1117 break;
1118 case DDB_DS_SESSION_FAILED:
1119 iscsi_block_session(ddb_entry->sess);
1120 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1121 qla4xxx_arm_relogin_timer(ddb_entry);
1122 status = QLA_SUCCESS;
1123 break;
1124 }
1125 break;
1126 case DDB_DS_SESSION_ACTIVE:
1127 switch (state) {
1128 case DDB_DS_SESSION_FAILED:
1129 iscsi_block_session(ddb_entry->sess);
1130 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1131 qla4xxx_arm_relogin_timer(ddb_entry);
1132 status = QLA_SUCCESS;
1133 break;
1134 }
1135 break;
1136 case DDB_DS_SESSION_FAILED:
1137 switch (state) {
1138 case DDB_DS_SESSION_ACTIVE:
1139 ddb_entry->unblock_sess(ddb_entry->sess);
1140 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1141 status = QLA_SUCCESS;
1142 break;
1143 case DDB_DS_SESSION_FAILED:
1144 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1145 qla4xxx_arm_relogin_timer(ddb_entry);
1146 status = QLA_SUCCESS;
1147 break;
1148 }
1149 break;
1150 default:
1151 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1152 __func__));
1153 break;
1154 }
1155 return status;
1156 }
1157
1158 /**
1159 * qla4xxx_process_ddb_changed - process ddb state change
1160 * @ha: Pointer to host adapter structure.
1161 * @fw_ddb_index: Firmware's device database index
1162 * @state: Device state
1163 * @conn_err: Unused
1164 *
1165 * This routine processes a Decive Database Changed AEN Event.
1166 **/
1167 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
1168 uint32_t fw_ddb_index,
1169 uint32_t state, uint32_t conn_err)
1170 {
1171 struct ddb_entry *ddb_entry;
1172
1173 /* check for out of range index */
1174 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1175 goto exit_ddb_event;
1176
1177 /* Get the corresponging ddb entry */
1178 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1179 /* Device does not currently exist in our database. */
1180 if (ddb_entry == NULL) {
1181 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
1182 __func__, fw_ddb_index);
1183
1184 if (state == DDB_DS_NO_CONNECTION_ACTIVE)
1185 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1186
1187 goto exit_ddb_event;
1188 }
1189
1190 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
1191
1192 exit_ddb_event:
1193 return QLA_ERROR;
1194 }
1195
1196 /**
1197 * qla4xxx_login_flash_ddb - Login to target (DDB)
1198 * @cls_session: Pointer to the session to login
1199 *
1200 * This routine logins to the target.
1201 * Issues setddb and conn open mbx
1202 **/
1203 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
1204 {
1205 struct iscsi_session *sess;
1206 struct ddb_entry *ddb_entry;
1207 struct scsi_qla_host *ha;
1208 struct dev_db_entry *fw_ddb_entry = NULL;
1209 dma_addr_t fw_ddb_dma;
1210 uint32_t mbx_sts = 0;
1211 int ret;
1212
1213 sess = cls_session->dd_data;
1214 ddb_entry = sess->dd_data;
1215 ha = ddb_entry->ha;
1216
1217 if (!test_bit(AF_LINK_UP, &ha->flags))
1218 return;
1219
1220 if (ddb_entry->ddb_type != FLASH_DDB) {
1221 DEBUG2(ql4_printk(KERN_INFO, ha,
1222 "Skipping login to non FLASH DB"));
1223 goto exit_login;
1224 }
1225
1226 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
1227 &fw_ddb_dma);
1228 if (fw_ddb_entry == NULL) {
1229 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
1230 goto exit_login;
1231 }
1232
1233 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
1234 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
1235 if (ret == QLA_ERROR)
1236 goto exit_login;
1237
1238 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1239 ha->tot_ddbs++;
1240 }
1241
1242 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
1243 sizeof(struct dev_db_entry));
1244 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
1245
1246 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1247 fw_ddb_dma, &mbx_sts);
1248 if (ret == QLA_ERROR) {
1249 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
1250 goto exit_login;
1251 }
1252
1253 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1254 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1255 if (ret == QLA_ERROR) {
1256 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1257 sess->targetname);
1258 goto exit_login;
1259 }
1260
1261 exit_login:
1262 if (fw_ddb_entry)
1263 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
1264 }
1265
Kernel DRM miscellaneous fixes and cross-tree changes