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lkdtm: Add Control Flow Integrity test
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_init.c
blob2bf5e3e639e1aed822c4949c5305b9a6bf74dd05
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
165 /* Get flash sys info */
166 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
167 sizeof(*sys_info)) != QLA_SUCCESS) {
168 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
169 "failed\n", ha->host_no, __func__));
170
171 goto exit_get_sys_info;
172 }
173
174 /* Save M.A.C. address & serial_number */
175 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
176 min(sizeof(ha->my_mac),
177 sizeof(sys_info->physAddr[0].address)));
178 memcpy(ha->serial_number, &sys_info->acSerialNumber,
179 min(sizeof(ha->serial_number),
180 sizeof(sys_info->acSerialNumber)));
181
182 status = QLA_SUCCESS;
183
184 exit_get_sys_info:
185 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
186 sys_info_dma);
187
188 exit_get_sys_info_no_free:
189 return status;
190 }
191
192 /**
193 * qla4xxx_init_local_data - initialize adapter specific local data
194 * @ha: pointer to host adapter structure.
195 *
196 **/
197 static void qla4xxx_init_local_data(struct scsi_qla_host *ha)
198 {
199 /* Initialize aen queue */
200 ha->aen_q_count = MAX_AEN_ENTRIES;
201 }
202
203 static uint8_t
204 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
205 {
206 uint8_t ipv4_wait = 0;
207 uint8_t ipv6_wait = 0;
208 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
209
210 /* If both IPv4 & IPv6 are enabled, possibly only one
211 * IP address may be acquired, so check to see if we
212 * need to wait for another */
213 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
214 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
215 ((ha->addl_fw_state &
216 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
217 ipv4_wait = 1;
218 }
219 if (((ha->ip_config.ipv6_addl_options &
220 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
221 ((ha->ip_config.ipv6_link_local_state ==
222 IP_ADDRSTATE_ACQUIRING) ||
223 (ha->ip_config.ipv6_addr0_state ==
224 IP_ADDRSTATE_ACQUIRING) ||
225 (ha->ip_config.ipv6_addr1_state ==
226 IP_ADDRSTATE_ACQUIRING))) {
227
228 ipv6_wait = 1;
229
230 if ((ha->ip_config.ipv6_link_local_state ==
231 IP_ADDRSTATE_PREFERRED) ||
232 (ha->ip_config.ipv6_addr0_state ==
233 IP_ADDRSTATE_PREFERRED) ||
234 (ha->ip_config.ipv6_addr1_state ==
235 IP_ADDRSTATE_PREFERRED)) {
236 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
237 "Preferred IP configured."
238 " Don't wait!\n", ha->host_no,
239 __func__));
240 ipv6_wait = 0;
241 }
242 if (memcmp(&ha->ip_config.ipv6_default_router_addr,
243 ip_address, IPv6_ADDR_LEN) == 0) {
244 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
245 "No Router configured. "
246 "Don't wait!\n", ha->host_no,
247 __func__));
248 ipv6_wait = 0;
249 }
250 if ((ha->ip_config.ipv6_default_router_state ==
251 IPV6_RTRSTATE_MANUAL) &&
252 (ha->ip_config.ipv6_link_local_state ==
253 IP_ADDRSTATE_TENTATIVE) &&
254 (memcmp(&ha->ip_config.ipv6_link_local_addr,
255 &ha->ip_config.ipv6_default_router_addr, 4) ==
256 0)) {
257 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
258 "IP configured. Don't wait!\n",
259 ha->host_no, __func__));
260 ipv6_wait = 0;
261 }
262 }
263 if (ipv4_wait || ipv6_wait) {
264 DEBUG2(printk("scsi%ld: %s: Wait for additional "
265 "IP(s) \"", ha->host_no, __func__));
266 if (ipv4_wait)
267 DEBUG2(printk("IPv4 "));
268 if (ha->ip_config.ipv6_link_local_state ==
269 IP_ADDRSTATE_ACQUIRING)
270 DEBUG2(printk("IPv6LinkLocal "));
271 if (ha->ip_config.ipv6_addr0_state ==
272 IP_ADDRSTATE_ACQUIRING)
273 DEBUG2(printk("IPv6Addr0 "));
274 if (ha->ip_config.ipv6_addr1_state ==
275 IP_ADDRSTATE_ACQUIRING)
276 DEBUG2(printk("IPv6Addr1 "));
277 DEBUG2(printk("\"\n"));
278 }
279 }
280
281 return ipv4_wait|ipv6_wait;
282 }
283
284 static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha,
285 struct qla4_8xxx_minidump_template_hdr *md_hdr)
286 {
287 int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET :
288 QLA83XX_TEMPLATE_CAP_OFFSET;
289 int rval = 1;
290 uint32_t *cap_offset;
291
292 cap_offset = (uint32_t *)((char *)md_hdr + offset);
293
294 if (!(le32_to_cpu(*cap_offset) & BIT_0)) {
295 ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n",
296 *cap_offset);
297 rval = 0;
298 }
299
300 return rval;
301 }
302
303 /**
304 * qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
305 * @ha: pointer to host adapter structure.
306 **/
307 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
308 {
309 int status;
310 uint32_t capture_debug_level;
311 int hdr_entry_bit, k;
312 void *md_tmp;
313 dma_addr_t md_tmp_dma;
314 struct qla4_8xxx_minidump_template_hdr *md_hdr;
315 int dma_capable;
316
317 if (ha->fw_dump) {
318 ql4_printk(KERN_WARNING, ha,
319 "Firmware dump previously allocated.\n");
320 return;
321 }
322
323 status = qla4xxx_req_template_size(ha);
324 if (status != QLA_SUCCESS) {
325 ql4_printk(KERN_INFO, ha,
326 "scsi%ld: Failed to get template size\n",
327 ha->host_no);
328 return;
329 }
330
331 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
332
333 /* Allocate memory for saving the template */
334 md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
335 &md_tmp_dma, GFP_KERNEL);
336 if (!md_tmp) {
337 ql4_printk(KERN_INFO, ha,
338 "scsi%ld: Failed to allocate DMA memory\n",
339 ha->host_no);
340 return;
341 }
342
343 /* Request template */
344 status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
345 if (status != QLA_SUCCESS) {
346 ql4_printk(KERN_INFO, ha,
347 "scsi%ld: Failed to get minidump template\n",
348 ha->host_no);
349 goto alloc_cleanup;
350 }
351
352 md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
353
354 dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr);
355
356 capture_debug_level = md_hdr->capture_debug_level;
357
358 /* Get capture mask based on module loadtime setting. */
359 if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) ||
360 (ql4xmdcapmask == 0xFF && dma_capable)) {
361 ha->fw_dump_capture_mask = ql4xmdcapmask;
362 } else {
363 if (ql4xmdcapmask == 0xFF)
364 ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n");
365 ha->fw_dump_capture_mask = capture_debug_level;
366 }
367
368 md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
369
370 DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
371 md_hdr->num_of_entries));
372 DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
373 ha->fw_dump_tmplt_size));
374 DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
375 ha->fw_dump_capture_mask));
376
377 /* Calculate fw_dump_size */
378 for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
379 hdr_entry_bit <<= 1, k++) {
380 if (hdr_entry_bit & ha->fw_dump_capture_mask)
381 ha->fw_dump_size += md_hdr->capture_size_array[k];
382 }
383
384 /* Total firmware dump size including command header */
385 ha->fw_dump_size += ha->fw_dump_tmplt_size;
386 ha->fw_dump = vmalloc(ha->fw_dump_size);
387 if (!ha->fw_dump)
388 goto alloc_cleanup;
389
390 DEBUG2(ql4_printk(KERN_INFO, ha,
391 "Minidump Template Size = 0x%x KB\n",
392 ha->fw_dump_tmplt_size));
393 DEBUG2(ql4_printk(KERN_INFO, ha,
394 "Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
395
396 memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
397 ha->fw_dump_tmplt_hdr = ha->fw_dump;
398
399 alloc_cleanup:
400 dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
401 md_tmp, md_tmp_dma);
402 }
403
404 static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
405 {
406 uint32_t timeout_count;
407 int ready = 0;
408
409 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
410 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
411 timeout_count--) {
412 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
413 qla4xxx_get_dhcp_ip_address(ha);
414
415 /* Get firmware state. */
416 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
417 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
418 "state\n", ha->host_no, __func__));
419 break;
420 }
421
422 if (ha->firmware_state & FW_STATE_ERROR) {
423 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
424 " occurred\n", ha->host_no, __func__));
425 break;
426
427 }
428 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
429 /*
430 * The firmware has not yet been issued an Initialize
431 * Firmware command, so issue it now.
432 */
433 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
434 break;
435
436 /* Go back and test for ready state - no wait. */
437 continue;
438 }
439
440 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
441 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
442 "AUTOCONNECT in progress\n",
443 ha->host_no, __func__));
444 }
445
446 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
447 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
448 " CONFIGURING IP\n",
449 ha->host_no, __func__));
450 /*
451 * Check for link state after 15 secs and if link is
452 * still DOWN then, cable is unplugged. Ignore "DHCP
453 * in Progress/CONFIGURING IP" bit to check if firmware
454 * is in ready state or not after 15 secs.
455 * This is applicable for both 2.x & 3.x firmware
456 */
457 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
458 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
459 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
460 " LINK UP (Cable plugged)\n",
461 ha->host_no, __func__));
462 } else if (ha->firmware_state &
463 (FW_STATE_CONFIGURING_IP |
464 FW_STATE_READY)) {
465 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
466 "LINK DOWN (Cable unplugged)\n",
467 ha->host_no, __func__));
468 ha->firmware_state = FW_STATE_READY;
469 }
470 }
471 }
472
473 if (ha->firmware_state == FW_STATE_READY) {
474 /* If DHCP IP Addr is available, retrieve it now. */
475 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
476 &ha->dpc_flags))
477 qla4xxx_get_dhcp_ip_address(ha);
478
479 if (!qla4xxx_wait_for_ip_config(ha) ||
480 timeout_count == 1) {
481 DEBUG2(ql4_printk(KERN_INFO, ha,
482 "Firmware Ready..\n"));
483 /* The firmware is ready to process SCSI
484 commands. */
485 DEBUG2(ql4_printk(KERN_INFO, ha,
486 "scsi%ld: %s: MEDIA TYPE"
487 " - %s\n", ha->host_no,
488 __func__, (ha->addl_fw_state &
489 FW_ADDSTATE_OPTICAL_MEDIA)
490 != 0 ? "OPTICAL" : "COPPER"));
491 DEBUG2(ql4_printk(KERN_INFO, ha,
492 "scsi%ld: %s: DHCPv4 STATE"
493 " Enabled %s\n", ha->host_no,
494 __func__, (ha->addl_fw_state &
495 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
496 "YES" : "NO"));
497 DEBUG2(ql4_printk(KERN_INFO, ha,
498 "scsi%ld: %s: LINK %s\n",
499 ha->host_no, __func__,
500 (ha->addl_fw_state &
501 FW_ADDSTATE_LINK_UP) != 0 ?
502 "UP" : "DOWN"));
503 DEBUG2(ql4_printk(KERN_INFO, ha,
504 "scsi%ld: %s: iSNS Service "
505 "Started %s\n",
506 ha->host_no, __func__,
507 (ha->addl_fw_state &
508 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
509 "YES" : "NO"));
510
511 ready = 1;
512 break;
513 }
514 }
515 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
516 "seconds expired= %d\n", ha->host_no, __func__,
517 ha->firmware_state, ha->addl_fw_state,
518 timeout_count));
519 if (is_qla4032(ha) &&
520 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
521 (timeout_count < ADAPTER_INIT_TOV - 5)) {
522 break;
523 }
524
525 msleep(1000);
526 } /* end of for */
527
528 if (timeout_count <= 0)
529 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
530 ha->host_no, __func__));
531
532 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
533 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
534 "it's waiting to configure an IP address\n",
535 ha->host_no, __func__));
536 ready = 1;
537 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
538 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
539 "auto-discovery still in process\n",
540 ha->host_no, __func__));
541 ready = 1;
542 }
543
544 return ready;
545 }
546
547 /**
548 * qla4xxx_init_firmware - initializes the firmware.
549 * @ha: pointer to host adapter structure.
550 *
551 **/
552 static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
553 {
554 int status = QLA_ERROR;
555
556 if (is_aer_supported(ha) &&
557 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
558 return status;
559
560 /* For 82xx, stop firmware before initializing because if BIOS
561 * has previously initialized firmware, then driver's initialize
562 * firmware will fail. */
563 if (is_qla80XX(ha))
564 qla4_8xxx_stop_firmware(ha);
565
566 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
567 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
568 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
569 "control block\n", ha->host_no, __func__));
570 return status;
571 }
572
573 if (!qla4xxx_fw_ready(ha))
574 return status;
575
576 if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
577 qla4xxx_alloc_fw_dump(ha);
578
579 return qla4xxx_get_firmware_status(ha);
580 }
581
582 static void qla4xxx_set_model_info(struct scsi_qla_host *ha)
583 {
584 uint16_t board_id_string[8];
585 int i;
586 int size = sizeof(ha->nvram->isp4022.boardIdStr);
587 int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2;
588
589 for (i = 0; i < (size / 2) ; i++) {
590 board_id_string[i] = rd_nvram_word(ha, offset);
591 offset += 1;
592 }
593
594 memcpy(ha->model_name, board_id_string, size);
595 }
596
597 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
598 {
599 unsigned long flags;
600 union external_hw_config_reg extHwConfig;
601
602 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
603 __func__));
604 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
605 return QLA_ERROR;
606 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
607 ql4xxx_unlock_flash(ha);
608 return QLA_ERROR;
609 }
610
611 /* Get EEPRom Parameters from NVRAM and validate */
612 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
613 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
614 spin_lock_irqsave(&ha->hardware_lock, flags);
615 extHwConfig.Asuint32_t =
616 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
617 spin_unlock_irqrestore(&ha->hardware_lock, flags);
618 } else {
619 ql4_printk(KERN_WARNING, ha,
620 "scsi%ld: %s: EEProm checksum invalid. "
621 "Please update your EEPROM\n", ha->host_no,
622 __func__);
623
624 /* Attempt to set defaults */
625 if (is_qla4010(ha))
626 extHwConfig.Asuint32_t = 0x1912;
627 else if (is_qla4022(ha) | is_qla4032(ha))
628 extHwConfig.Asuint32_t = 0x0023;
629 else
630 return QLA_ERROR;
631 }
632
633 if (is_qla4022(ha) || is_qla4032(ha))
634 qla4xxx_set_model_info(ha);
635 else
636 strcpy(ha->model_name, "QLA4010");
637
638 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
639 ha->host_no, __func__, extHwConfig.Asuint32_t));
640
641 spin_lock_irqsave(&ha->hardware_lock, flags);
642 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
643 readl(isp_ext_hw_conf(ha));
644 spin_unlock_irqrestore(&ha->hardware_lock, flags);
645
646 ql4xxx_unlock_nvram(ha);
647 ql4xxx_unlock_flash(ha);
648
649 return QLA_SUCCESS;
650 }
651
652 /**
653 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
654 * @ha: HA context
655 */
656 void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
657 {
658 pci_set_master(ha->pdev);
659 }
660
661 void qla4xxx_pci_config(struct scsi_qla_host *ha)
662 {
663 uint16_t w;
664 int status;
665
666 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
667
668 pci_set_master(ha->pdev);
669 status = pci_set_mwi(ha->pdev);
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 *
949 * This routine parforms all of the steps necessary to initialize the adapter.
950 *
951 **/
952 int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
953 {
954 int status = QLA_ERROR;
955
956 ha->eeprom_cmd_data = 0;
957
958 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
959 ha->isp_ops->pci_config(ha);
960
961 ha->isp_ops->disable_intrs(ha);
962
963 /* Initialize the Host adapter request/response queues and firmware */
964 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
965 goto exit_init_hba;
966
967 /*
968 * For ISP83XX, mailbox and IOCB interrupts are enabled separately.
969 * Mailbox interrupts must be enabled prior to issuing any mailbox
970 * command in order to prevent the possibility of losing interrupts
971 * while switching from polling to interrupt mode. IOCB interrupts are
972 * enabled via isp_ops->enable_intrs.
973 */
974 if (is_qla8032(ha) || is_qla8042(ha))
975 qla4_83xx_enable_mbox_intrs(ha);
976
977 if (qla4xxx_about_firmware(ha) == QLA_ERROR)
978 goto exit_init_hba;
979
980 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
981 goto exit_init_hba;
982
983 qla4xxx_init_local_data(ha);
984
985 status = qla4xxx_init_firmware(ha);
986 if (status == QLA_ERROR)
987 goto exit_init_hba;
988
989 if (is_reset == RESET_ADAPTER)
990 qla4xxx_build_ddb_list(ha, is_reset);
991
992 set_bit(AF_ONLINE, &ha->flags);
993
994 exit_init_hba:
995 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
996 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
997 return status;
998 }
999
1000 int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1001 struct ddb_entry *ddb_entry, uint32_t state)
1002 {
1003 uint32_t old_fw_ddb_device_state;
1004 int status = QLA_ERROR;
1005
1006 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1007 DEBUG2(ql4_printk(KERN_INFO, ha,
1008 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1009 "index [%d]\n", __func__,
1010 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1011
1012 ddb_entry->fw_ddb_device_state = state;
1013
1014 switch (old_fw_ddb_device_state) {
1015 case DDB_DS_LOGIN_IN_PROCESS:
1016 switch (state) {
1017 case DDB_DS_SESSION_ACTIVE:
1018 case DDB_DS_DISCOVERY:
1019 qla4xxx_update_session_conn_param(ha, ddb_entry);
1020 ddb_entry->unblock_sess(ddb_entry->sess);
1021 status = QLA_SUCCESS;
1022 break;
1023 case DDB_DS_SESSION_FAILED:
1024 case DDB_DS_NO_CONNECTION_ACTIVE:
1025 iscsi_conn_login_event(ddb_entry->conn,
1026 ISCSI_CONN_STATE_FREE);
1027 status = QLA_SUCCESS;
1028 break;
1029 }
1030 break;
1031 case DDB_DS_SESSION_ACTIVE:
1032 case DDB_DS_DISCOVERY:
1033 switch (state) {
1034 case DDB_DS_SESSION_FAILED:
1035 /*
1036 * iscsi_session failure will cause userspace to
1037 * stop the connection which in turn would block the
1038 * iscsi_session and start relogin
1039 */
1040 iscsi_session_failure(ddb_entry->sess->dd_data,
1041 ISCSI_ERR_CONN_FAILED);
1042 status = QLA_SUCCESS;
1043 break;
1044 case DDB_DS_NO_CONNECTION_ACTIVE:
1045 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1046 status = QLA_SUCCESS;
1047 break;
1048 }
1049 break;
1050 case DDB_DS_SESSION_FAILED:
1051 switch (state) {
1052 case DDB_DS_SESSION_ACTIVE:
1053 case DDB_DS_DISCOVERY:
1054 ddb_entry->unblock_sess(ddb_entry->sess);
1055 qla4xxx_update_session_conn_param(ha, ddb_entry);
1056 status = QLA_SUCCESS;
1057 break;
1058 case DDB_DS_SESSION_FAILED:
1059 iscsi_session_failure(ddb_entry->sess->dd_data,
1060 ISCSI_ERR_CONN_FAILED);
1061 status = QLA_SUCCESS;
1062 break;
1063 }
1064 break;
1065 default:
1066 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1067 __func__));
1068 break;
1069 }
1070 return status;
1071 }
1072
1073 void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
1074 {
1075 /*
1076 * This triggers a relogin. After the relogin_timer
1077 * expires, the relogin gets scheduled. We must wait a
1078 * minimum amount of time since receiving an 0x8014 AEN
1079 * with failed device_state or a logout response before
1080 * we can issue another relogin.
1081 *
1082 * Firmware pads this timeout: (time2wait +1).
1083 * Driver retry to login should be longer than F/W.
1084 * Otherwise F/W will fail
1085 * set_ddb() mbx cmd with 0x4005 since it still
1086 * counting down its time2wait.
1087 */
1088 atomic_set(&ddb_entry->relogin_timer, 0);
1089 atomic_set(&ddb_entry->retry_relogin_timer,
1090 ddb_entry->default_time2wait + 4);
1091
1092 }
1093
1094 int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1095 struct ddb_entry *ddb_entry, uint32_t state)
1096 {
1097 uint32_t old_fw_ddb_device_state;
1098 int status = QLA_ERROR;
1099
1100 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1101 DEBUG2(ql4_printk(KERN_INFO, ha,
1102 "%s: DDB - old state = 0x%x, new state = 0x%x for "
1103 "index [%d]\n", __func__,
1104 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1105
1106 ddb_entry->fw_ddb_device_state = state;
1107
1108 switch (old_fw_ddb_device_state) {
1109 case DDB_DS_LOGIN_IN_PROCESS:
1110 case DDB_DS_NO_CONNECTION_ACTIVE:
1111 switch (state) {
1112 case DDB_DS_SESSION_ACTIVE:
1113 ddb_entry->unblock_sess(ddb_entry->sess);
1114 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1115 status = QLA_SUCCESS;
1116 break;
1117 case DDB_DS_SESSION_FAILED:
1118 iscsi_block_session(ddb_entry->sess);
1119 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1120 qla4xxx_arm_relogin_timer(ddb_entry);
1121 status = QLA_SUCCESS;
1122 break;
1123 }
1124 break;
1125 case DDB_DS_SESSION_ACTIVE:
1126 switch (state) {
1127 case DDB_DS_SESSION_FAILED:
1128 iscsi_block_session(ddb_entry->sess);
1129 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1130 qla4xxx_arm_relogin_timer(ddb_entry);
1131 status = QLA_SUCCESS;
1132 break;
1133 }
1134 break;
1135 case DDB_DS_SESSION_FAILED:
1136 switch (state) {
1137 case DDB_DS_SESSION_ACTIVE:
1138 ddb_entry->unblock_sess(ddb_entry->sess);
1139 qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
1140 status = QLA_SUCCESS;
1141 break;
1142 case DDB_DS_SESSION_FAILED:
1143 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
1144 qla4xxx_arm_relogin_timer(ddb_entry);
1145 status = QLA_SUCCESS;
1146 break;
1147 }
1148 break;
1149 default:
1150 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
1151 __func__));
1152 break;
1153 }
1154 return status;
1155 }
1156
1157 /**
1158 * qla4xxx_process_ddb_changed - process ddb state change
1159 * @ha - Pointer to host adapter structure.
1160 * @fw_ddb_index - Firmware's device database index
1161 * @state - Device state
1162 *
1163 * This routine processes a Decive Database Changed AEN Event.
1164 **/
1165 int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
1166 uint32_t fw_ddb_index,
1167 uint32_t state, uint32_t conn_err)
1168 {
1169 struct ddb_entry *ddb_entry;
1170 int status = QLA_ERROR;
1171
1172 /* check for out of range index */
1173 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1174 goto exit_ddb_event;
1175
1176 /* Get the corresponging ddb entry */
1177 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1178 /* Device does not currently exist in our database. */
1179 if (ddb_entry == NULL) {
1180 ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
1181 __func__, fw_ddb_index);
1182
1183 if (state == DDB_DS_NO_CONNECTION_ACTIVE)
1184 clear_bit(fw_ddb_index, ha->ddb_idx_map);
1185
1186 goto exit_ddb_event;
1187 }
1188
1189 ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
1190
1191 exit_ddb_event:
1192 return status;
1193 }
1194
1195 /**
1196 * qla4xxx_login_flash_ddb - Login to target (DDB)
1197 * @cls_session: Pointer to the session to login
1198 *
1199 * This routine logins to the target.
1200 * Issues setddb and conn open mbx
1201 **/
1202 void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
1203 {
1204 struct iscsi_session *sess;
1205 struct ddb_entry *ddb_entry;
1206 struct scsi_qla_host *ha;
1207 struct dev_db_entry *fw_ddb_entry = NULL;
1208 dma_addr_t fw_ddb_dma;
1209 uint32_t mbx_sts = 0;
1210 int ret;
1211
1212 sess = cls_session->dd_data;
1213 ddb_entry = sess->dd_data;
1214 ha = ddb_entry->ha;
1215
1216 if (!test_bit(AF_LINK_UP, &ha->flags))
1217 return;
1218
1219 if (ddb_entry->ddb_type != FLASH_DDB) {
1220 DEBUG2(ql4_printk(KERN_INFO, ha,
1221 "Skipping login to non FLASH DB"));
1222 goto exit_login;
1223 }
1224
1225 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
1226 &fw_ddb_dma);
1227 if (fw_ddb_entry == NULL) {
1228 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
1229 goto exit_login;
1230 }
1231
1232 if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
1233 ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
1234 if (ret == QLA_ERROR)
1235 goto exit_login;
1236
1237 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1238 ha->tot_ddbs++;
1239 }
1240
1241 memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
1242 sizeof(struct dev_db_entry));
1243 ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
1244
1245 ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1246 fw_ddb_dma, &mbx_sts);
1247 if (ret == QLA_ERROR) {
1248 DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
1249 goto exit_login;
1250 }
1251
1252 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1253 ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1254 if (ret == QLA_ERROR) {
1255 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1256 sess->targetname);
1257 goto exit_login;
1258 }
1259
1260 exit_login:
1261 if (fw_ddb_entry)
1262 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
1263 }
1264
Linux with added FPC-III support