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fix typos concerning "management"
[deliverable/linux.git] / drivers / scsi / qla4xxx / ql4_init.c
CommitLineData
afaf5a2d
DS		 1/*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2006 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7
26974789 8#include <scsi/iscsi_if.h>
afaf5a2d 9#include "ql4_def.h"
92b72736
DS		 10#include "ql4_glbl.h"
11#include "ql4_dbg.h"
12#include "ql4_inline.h"
afaf5a2d 13
47975477
AB		 14static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
15 uint32_t fw_ddb_index);
afaf5a2d
DS		 16
17static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
18{
19 uint32_t value;
20 uint8_t func_number;
21 unsigned long flags;
22
23 /* Get the function number */
24 spin_lock_irqsave(&ha->hardware_lock, flags);
25 value = readw(&ha->reg->ctrl_status);
26 spin_unlock_irqrestore(&ha->hardware_lock, flags);
27
28 func_number = (uint8_t) ((value >> 4) & 0x30);
29 switch (value & ISP_CONTROL_FN_MASK) {
30 case ISP_CONTROL_FN0_SCSI:
31 ha->mac_index = 1;
32 break;
33 case ISP_CONTROL_FN1_SCSI:
34 ha->mac_index = 3;
35 break;
36 default:
37 DEBUG2(printk("scsi%ld: %s: Invalid function number, "
38 "ispControlStatus = 0x%x\n", ha->host_no,
39 __func__, value));
40 break;
41 }
42 DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
43 ha->mac_index));
44}
45
46/**
47 * qla4xxx_free_ddb - deallocate ddb
48 * @ha: pointer to host adapter structure.
49 * @ddb_entry: pointer to device database entry
50 *
51 * This routine deallocates and unlinks the specified ddb_entry from the
52 * adapter's
53 **/
47975477
AB		 54static void qla4xxx_free_ddb(struct scsi_qla_host *ha,
55 struct ddb_entry *ddb_entry)
afaf5a2d
DS		 56{
57 /* Remove device entry from list */
58 list_del_init(&ddb_entry->list);
59
60 /* Remove device pointer from index mapping arrays */
61 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
62 (struct ddb_entry *) INVALID_ENTRY;
63 ha->tot_ddbs--;
64
65 /* Free memory and scsi-ml struct for device entry */
66 qla4xxx_destroy_sess(ddb_entry);
67}
68
69/**
70 * qla4xxx_free_ddb_list - deallocate all ddbs
71 * @ha: pointer to host adapter structure.
72 *
73 * This routine deallocates and removes all devices on the sppecified adapter.
74 **/
75void qla4xxx_free_ddb_list(struct scsi_qla_host *ha)
76{
77 struct list_head *ptr;
78 struct ddb_entry *ddb_entry;
79
80 while (!list_empty(&ha->ddb_list)) {
81 ptr = ha->ddb_list.next;
82 /* Free memory for device entry and remove */
83 ddb_entry = list_entry(ptr, struct ddb_entry, list);
84 qla4xxx_free_ddb(ha, ddb_entry);
85 }
86}
87
88/**
89 * qla4xxx_init_rings - initialize hw queues
90 * @ha: pointer to host adapter structure.
91 *
92 * This routine initializes the internal queues for the specified adapter.
93 * The QLA4010 requires us to restart the queues at index 0.
94 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
95 **/
96int qla4xxx_init_rings(struct scsi_qla_host *ha)
97{
98 unsigned long flags = 0;
99
100 /* Initialize request queue. */
101 spin_lock_irqsave(&ha->hardware_lock, flags);
102 ha->request_out = 0;
103 ha->request_in = 0;
104 ha->request_ptr = &ha->request_ring[ha->request_in];
105 ha->req_q_count = REQUEST_QUEUE_DEPTH;
106
107 /* Initialize response queue. */
108 ha->response_in = 0;
109 ha->response_out = 0;
110 ha->response_ptr = &ha->response_ring[ha->response_out];
111
112 /*
113 * Initialize DMA Shadow registers. The firmware is really supposed to
114 * take care of this, but on some uniprocessor systems, the shadow
115 * registers aren't cleared-- causing the interrupt_handler to think
116 * there are responses to be processed when there aren't.
117 */
118 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
119 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
120 wmb();
121
122 writel(0, &ha->reg->req_q_in);
123 writel(0, &ha->reg->rsp_q_out);
124 readl(&ha->reg->rsp_q_out);
125
126 spin_unlock_irqrestore(&ha->hardware_lock, flags);
127
128 return QLA_SUCCESS;
129}
130
131/**
132 * qla4xxx_validate_mac_address - validate adapter MAC address(es)
133 * @ha: pointer to host adapter structure.
134 *
135 **/
136static int qla4xxx_validate_mac_address(struct scsi_qla_host *ha)
137{
138 struct flash_sys_info *sys_info;
139 dma_addr_t sys_info_dma;
140 int status = QLA_ERROR;
141
142 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
143 &sys_info_dma, GFP_KERNEL);
144 if (sys_info == NULL) {
145 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
146 ha->host_no, __func__));
147
148 goto exit_validate_mac_no_free;
149 }
150 memset(sys_info, 0, sizeof(*sys_info));
151
152 /* Get flash sys info */
153 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
154 sizeof(*sys_info)) != QLA_SUCCESS) {
155 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
156 "failed\n", ha->host_no, __func__));
157
158 goto exit_validate_mac;
159 }
160
161 /* Save M.A.C. address & serial_number */
162 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
163 min(sizeof(ha->my_mac),
164 sizeof(sys_info->physAddr[0].address)));
165 memcpy(ha->serial_number, &sys_info->acSerialNumber,
166 min(sizeof(ha->serial_number),
167 sizeof(sys_info->acSerialNumber)));
168
169 status = QLA_SUCCESS;
170
171 exit_validate_mac:
172 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
173 sys_info_dma);
174
175 exit_validate_mac_no_free:
176 return status;
177}
178
179/**
180 * qla4xxx_init_local_data - initialize adapter specific local data
181 * @ha: pointer to host adapter structure.
182 *
183 **/
184static int qla4xxx_init_local_data(struct scsi_qla_host *ha)
185{
186 /* Initilize aen queue */
187 ha->aen_q_count = MAX_AEN_ENTRIES;
188
189 return qla4xxx_get_firmware_status(ha);
190}
191
2a49a78e
VC		 192static uint8_t
193qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
194{
195 uint8_t ipv4_wait = 0;
196 uint8_t ipv6_wait = 0;
197 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
198
199 /* If both IPv4 & IPv6 are enabled, possibly only one
200 * IP address may be acquired, so check to see if we
201 * need to wait for another */
202 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
203 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
204 ((ha->addl_fw_state &
205 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
206 ipv4_wait = 1;
207 }
208 if (((ha->ipv6_addl_options &
209 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
210 ((ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) ||
211 (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) ||
212 (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING))) {
213
214 ipv6_wait = 1;
215
216 if ((ha->ipv6_link_local_state ==
217 IP_ADDRSTATE_PREFERRED) ||
218 (ha->ipv6_addr0_state == IP_ADDRSTATE_PREFERRED) ||
219 (ha->ipv6_addr1_state == IP_ADDRSTATE_PREFERRED)) {
220 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
221 "Preferred IP configured."
222 " Don't wait!\n", ha->host_no,
223 __func__));
224 ipv6_wait = 0;
225 }
226 if (memcmp(&ha->ipv6_default_router_addr, ip_address,
227 IPv6_ADDR_LEN) == 0) {
228 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
229 "No Router configured. "
230 "Don't wait!\n", ha->host_no,
231 __func__));
232 ipv6_wait = 0;
233 }
234 if ((ha->ipv6_default_router_state ==
235 IPV6_RTRSTATE_MANUAL) &&
236 (ha->ipv6_link_local_state ==
237 IP_ADDRSTATE_TENTATIVE) &&
238 (memcmp(&ha->ipv6_link_local_addr,
239 &ha->ipv6_default_router_addr, 4) == 0)) {
240 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
241 "IP configured. Don't wait!\n",
242 ha->host_no, __func__));
243 ipv6_wait = 0;
244 }
245 }
246 if (ipv4_wait || ipv6_wait) {
247 DEBUG2(printk("scsi%ld: %s: Wait for additional "
248 "IP(s) \"", ha->host_no, __func__));
249 if (ipv4_wait)
250 DEBUG2(printk("IPv4 "));
251 if (ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING)
252 DEBUG2(printk("IPv6LinkLocal "));
253 if (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING)
254 DEBUG2(printk("IPv6Addr0 "));
255 if (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING)
256 DEBUG2(printk("IPv6Addr1 "));
257 DEBUG2(printk("\"\n"));
258 }
259 }
260
261 return ipv4_wait|ipv6_wait;
262}
263
afaf5a2d
DS		 264static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
265{
266 uint32_t timeout_count;
267 int ready = 0;
268
269 DEBUG2(dev_info(&ha->pdev->dev, "Waiting for Firmware Ready..\n"));
270 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
271 timeout_count--) {
272 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
273 qla4xxx_get_dhcp_ip_address(ha);
274
275 /* Get firmware state. */
276 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
277 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
278 "state\n", ha->host_no, __func__));
279 break;
280
281 }
282
283 if (ha->firmware_state & FW_STATE_ERROR) {
284 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
285 " occurred\n", ha->host_no, __func__));
286 break;
287
288 }
289 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
290 /*
291 * The firmware has not yet been issued an Initialize
292 * Firmware command, so issue it now.
293 */
294 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
295 break;
296
297 /* Go back and test for ready state - no wait. */
298 continue;
299 }
300
2a49a78e
VC		 301 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
302 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
303 "AUTOCONNECT in progress\n",
304 ha->host_no, __func__));
305 }
306
307 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
308 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
309 " CONFIGURING IP\n",
310 ha->host_no, __func__));
311 /*
312 * Check for link state after 15 secs and if link is
313 * still DOWN then, cable is unplugged. Ignore "DHCP
314 * in Progress/CONFIGURING IP" bit to check if firmware
315 * is in ready state or not after 15 secs.
316 * This is applicable for both 2.x & 3.x firmware
317 */
318 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
319 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
320 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
321 " LINK UP (Cable plugged)\n",
322 ha->host_no, __func__));
323 } else if (ha->firmware_state &
324 (FW_STATE_CONFIGURING_IP |
325 FW_STATE_READY)) {
326 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
327 "LINK DOWN (Cable unplugged)\n",
328 ha->host_no, __func__));
329 ha->firmware_state = FW_STATE_READY;
330 }
331 }
332 }
333
afaf5a2d 334 if (ha->firmware_state == FW_STATE_READY) {
2a49a78e
VC		 335 /* If DHCP IP Addr is available, retrieve it now. */
336 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
337 &ha->dpc_flags))
338 qla4xxx_get_dhcp_ip_address(ha);
339
340 if (!qla4xxx_wait_for_ip_config(ha) ||
341 timeout_count == 1) {
342 DEBUG2(dev_info(&ha->pdev->dev,
343 "Firmware Ready..\n"));
344 /* The firmware is ready to process SCSI
345 commands. */
346 DEBUG2(dev_info(&ha->pdev->dev,
347 "scsi%ld: %s: MEDIA TYPE"
348 " - %s\n", ha->host_no,
349 __func__, (ha->addl_fw_state &
350 FW_ADDSTATE_OPTICAL_MEDIA)
351 != 0 ? "OPTICAL" : "COPPER"));
352 DEBUG2(dev_info(&ha->pdev->dev,
353 "scsi%ld: %s: DHCPv4 STATE"
354 " Enabled %s\n", ha->host_no,
355 __func__, (ha->addl_fw_state &
356 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
357 "YES" : "NO"));
358 DEBUG2(dev_info(&ha->pdev->dev,
359 "scsi%ld: %s: LINK %s\n",
360 ha->host_no, __func__,
361 (ha->addl_fw_state &
362 FW_ADDSTATE_LINK_UP) != 0 ?
363 "UP" : "DOWN"));
364 DEBUG2(dev_info(&ha->pdev->dev,
365 "scsi%ld: %s: iSNS Service "
366 "Started %s\n",
367 ha->host_no, __func__,
368 (ha->addl_fw_state &
369 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
370 "YES" : "NO"));
371
372 ready = 1;
373 break;
374 }
afaf5a2d
DS		 375 }
376 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
377 "seconds expired= %d\n", ha->host_no, __func__,
378 ha->firmware_state, ha->addl_fw_state,
379 timeout_count));
d915058f
DS		 380 if (is_qla4032(ha) &&
381 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
382 (timeout_count < ADAPTER_INIT_TOV - 5)) {
383 break;
384 }
385
afaf5a2d
DS		 386 msleep(1000);
387 } /* end of for */
388
2a49a78e 389 if (timeout_count <= 0)
afaf5a2d
DS		 390 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
391 ha->host_no, __func__));
392
2a49a78e
VC		 393 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
394 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
395 "it's waiting to configure an IP address\n",
396 ha->host_no, __func__));
afaf5a2d 397 ready = 1;
2a49a78e
VC		 398 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
399 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
400 "auto-discovery still in process\n",
401 ha->host_no, __func__));
afaf5a2d
DS		 402 }
403
404 return ready;
405}
406
407/**
408 * qla4xxx_init_firmware - initializes the firmware.
409 * @ha: pointer to host adapter structure.
410 *
411 **/
412static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
413{
414 int status = QLA_ERROR;
415
416 dev_info(&ha->pdev->dev, "Initializing firmware..\n");
417 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
418 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
419 "control block\n", ha->host_no, __func__));
420 return status;
421 }
422 if (!qla4xxx_fw_ready(ha))
423 return status;
424
afaf5a2d
DS		 425 return qla4xxx_get_firmware_status(ha);
426}
427
428static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha,
92b72736
DS		 429 uint32_t fw_ddb_index,
430 uint32_t *new_tgt)
afaf5a2d
DS		 431{
432 struct dev_db_entry *fw_ddb_entry = NULL;
433 dma_addr_t fw_ddb_entry_dma;
434 struct ddb_entry *ddb_entry = NULL;
435 int found = 0;
436 uint32_t device_state;
437
92b72736 438 *new_tgt = 0;
afaf5a2d
DS		 439 /* Make sure the dma buffer is valid */
440 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
441 sizeof(*fw_ddb_entry),
442 &fw_ddb_entry_dma, GFP_KERNEL);
443 if (fw_ddb_entry == NULL) {
444 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
445 ha->host_no, __func__));
446 return NULL;
447 }
448
449 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
450 fw_ddb_entry_dma, NULL, NULL,
451 &device_state, NULL, NULL, NULL) ==
452 QLA_ERROR) {
453 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
454 "fw_ddb_index %d\n", ha->host_no, __func__,
455 fw_ddb_index));
456 return NULL;
457 }
458
459 /* Allocate DDB if not already allocated. */
460 DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no,
461 __func__, fw_ddb_index));
462 list_for_each_entry(ddb_entry, &ha->ddb_list, list) {
41bbdbeb
MC		 463 if ((memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsi_name,
464 ISCSI_NAME_SIZE) == 0) &&
465 (ddb_entry->tpgt ==
466 le32_to_cpu(fw_ddb_entry->tgt_portal_grp)) &&
467 (memcmp(ddb_entry->isid, fw_ddb_entry->isid,
468 sizeof(ddb_entry->isid)) == 0)) {
afaf5a2d
DS		 469 found++;
470 break;
471 }
472 }
473
474 if (!found) {
475 DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating "
476 "new ddb\n", ha->host_no, __func__,
477 fw_ddb_index));
92b72736 478 *new_tgt = 1;
afaf5a2d
DS		 479 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
480 }
481
482 /* if not found allocate new ddb */
483 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
484 fw_ddb_entry_dma);
485
486 return ddb_entry;
487}
488
489/**
490 * qla4xxx_update_ddb_entry - update driver's internal ddb
491 * @ha: pointer to host adapter structure.
492 * @ddb_entry: pointer to device database structure to be filled
493 * @fw_ddb_index: index of the ddb entry in fw ddb table
494 *
495 * This routine updates the driver's internal device database entry
496 * with information retrieved from the firmware's device database
497 * entry for the specified device. The ddb_entry->fw_ddb_index field
498 * must be initialized prior to calling this routine
499 *
500 **/
47975477
AB		 501static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
502 struct ddb_entry *ddb_entry,
503 uint32_t fw_ddb_index)
afaf5a2d
DS		 504{
505 struct dev_db_entry *fw_ddb_entry = NULL;
506 dma_addr_t fw_ddb_entry_dma;
507 int status = QLA_ERROR;
821d6e54 508 uint32_t conn_err;
afaf5a2d
DS		 509
510 if (ddb_entry == NULL) {
511 DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no,
512 __func__));
513 goto exit_update_ddb;
514 }
515
516 /* Make sure the dma buffer is valid */
517 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
518 sizeof(*fw_ddb_entry),
519 &fw_ddb_entry_dma, GFP_KERNEL);
520 if (fw_ddb_entry == NULL) {
521 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
522 ha->host_no, __func__));
523
524 goto exit_update_ddb;
525 }
526
527 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
528 fw_ddb_entry_dma, NULL, NULL,
821d6e54 529 &ddb_entry->fw_ddb_device_state, &conn_err,
afaf5a2d
DS		 530 &ddb_entry->tcp_source_port_num,
531 &ddb_entry->connection_id) ==
532 QLA_ERROR) {
533 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
534 "fw_ddb_index %d\n", ha->host_no, __func__,
535 fw_ddb_index));
536
537 goto exit_update_ddb;
538 }
539
540 status = QLA_SUCCESS;
2a49a78e 541 ddb_entry->options = le16_to_cpu(fw_ddb_entry->options);
92b72736 542 ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid);
afaf5a2d 543 ddb_entry->task_mgmt_timeout =
92b72736 544 le16_to_cpu(fw_ddb_entry->def_timeout);
afaf5a2d 545 ddb_entry->CmdSn = 0;
92b72736 546 ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle);
afaf5a2d 547 ddb_entry->default_relogin_timeout =
92b72736
DS		 548 le16_to_cpu(fw_ddb_entry->def_timeout);
549 ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
afaf5a2d
DS		 550
551 /* Update index in case it changed */
552 ddb_entry->fw_ddb_index = fw_ddb_index;
553 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
554
92b72736
DS		 555 ddb_entry->port = le16_to_cpu(fw_ddb_entry->port);
556 ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
41bbdbeb
MC		 557 memcpy(ddb_entry->isid, fw_ddb_entry->isid, sizeof(ddb_entry->isid));
558
92b72736 559 memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
afaf5a2d 560 min(sizeof(ddb_entry->iscsi_name),
92b72736
DS		 561 sizeof(fw_ddb_entry->iscsi_name)));
562 memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0],
563 min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr)));
afaf5a2d 564
2a49a78e
VC		 565 ddb_entry->iscsi_max_burst_len = fw_ddb_entry->iscsi_max_burst_len;
566 ddb_entry->iscsi_max_outsnd_r2t = fw_ddb_entry->iscsi_max_outsnd_r2t;
567 ddb_entry->iscsi_first_burst_len = fw_ddb_entry->iscsi_first_burst_len;
568 ddb_entry->iscsi_max_rcv_data_seg_len =
569 fw_ddb_entry->iscsi_max_rcv_data_seg_len;
570 ddb_entry->iscsi_max_snd_data_seg_len =
571 fw_ddb_entry->iscsi_max_snd_data_seg_len;
572
573 if (ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
574 memcpy(&ddb_entry->remote_ipv6_addr,
575 fw_ddb_entry->ip_addr,
576 min(sizeof(ddb_entry->remote_ipv6_addr),
577 sizeof(fw_ddb_entry->ip_addr)));
578 memcpy(&ddb_entry->link_local_ipv6_addr,
579 fw_ddb_entry->link_local_ipv6_addr,
580 min(sizeof(ddb_entry->link_local_ipv6_addr),
581 sizeof(fw_ddb_entry->link_local_ipv6_addr)));
afaf5a2d 582
821d6e54
VC		 583 DEBUG2(dev_info(&ha->pdev->dev, "%s: DDB[%d] osIdx = %d "
584 "State %04x ConnErr %08x IP %pI6 "
585 ":%04d \"%s\"\n",
586 __func__, fw_ddb_index,
587 ddb_entry->os_target_id,
588 ddb_entry->fw_ddb_device_state,
589 conn_err, fw_ddb_entry->ip_addr,
590 le16_to_cpu(fw_ddb_entry->port),
591 fw_ddb_entry->iscsi_name));
592 } else
593 DEBUG2(dev_info(&ha->pdev->dev, "%s: DDB[%d] osIdx = %d "
594 "State %04x ConnErr %08x IP %pI4 "
595 ":%04d \"%s\"\n",
596 __func__, fw_ddb_index,
597 ddb_entry->os_target_id,
598 ddb_entry->fw_ddb_device_state,
599 conn_err, fw_ddb_entry->ip_addr,
600 le16_to_cpu(fw_ddb_entry->port),
601 fw_ddb_entry->iscsi_name));
2a49a78e 602exit_update_ddb:
afaf5a2d
DS		 603 if (fw_ddb_entry)
604 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
605 fw_ddb_entry, fw_ddb_entry_dma);
606
607 return status;
608}
609
610/**
611 * qla4xxx_alloc_ddb - allocate device database entry
612 * @ha: Pointer to host adapter structure.
613 * @fw_ddb_index: Firmware's device database index
614 *
615 * This routine allocates a ddb_entry, ititializes some values, and
616 * inserts it into the ddb list.
617 **/
47975477
AB		 618static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
619 uint32_t fw_ddb_index)
afaf5a2d
DS		 620{
621 struct ddb_entry *ddb_entry;
622
623 DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no,
624 __func__, fw_ddb_index));
625
626 ddb_entry = qla4xxx_alloc_sess(ha);
627 if (ddb_entry == NULL) {
628 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
629 "to add fw_ddb_index [%d]\n",
630 ha->host_no, __func__, fw_ddb_index));
631 return ddb_entry;
632 }
633
634 ddb_entry->fw_ddb_index = fw_ddb_index;
635 atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count);
636 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
637 atomic_set(&ddb_entry->relogin_timer, 0);
638 atomic_set(&ddb_entry->relogin_retry_count, 0);
639 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
640 list_add_tail(&ddb_entry->list, &ha->ddb_list);
641 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
642 ha->tot_ddbs++;
643
644 return ddb_entry;
645}
646
821d6e54
VC		 647/**
648 * qla4_is_relogin_allowed - Are we allowed to login?
649 * @ha: Pointer to host adapter structure.
650 * @conn_err: Last connection error associated with the ddb
651 *
652 * This routine tests the given connection error to determine if
653 * we are allowed to login.
654 **/
655int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err)
656{
657 uint32_t err_code, login_rsp_sts_class;
658 int relogin = 1;
659
660 err_code = ((conn_err & 0x00ff0000) >> 16);
661 login_rsp_sts_class = ((conn_err & 0x0000ff00) >> 8);
662 if (err_code == 0x1c || err_code == 0x06) {
663 DEBUG2(dev_info(&ha->pdev->dev,
664 ": conn_err=0x%08x, send target completed"
665 " or access denied failure\n", conn_err));
666 relogin = 0;
667 }
668 if ((err_code == 0x08) && (login_rsp_sts_class == 0x02)) {
669 /* Login Response PDU returned an error.
670 Login Response Status in Error Code Detail
671 indicates login should not be retried.*/
672 DEBUG2(dev_info(&ha->pdev->dev,
673 ": conn_err=0x%08x, do not retry relogin\n",
674 conn_err));
675 relogin = 0;
676 }
677
678 return relogin;
679}
680
afaf5a2d
DS		 681/**
682 * qla4xxx_configure_ddbs - builds driver ddb list
683 * @ha: Pointer to host adapter structure.
684 *
685 * This routine searches for all valid firmware ddb entries and builds
686 * an internal ddb list. Ddbs that are considered valid are those with
687 * a device state of SESSION_ACTIVE.
688 **/
689static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
690{
691 int status = QLA_SUCCESS;
692 uint32_t fw_ddb_index = 0;
693 uint32_t next_fw_ddb_index = 0;
694 uint32_t ddb_state;
821d6e54 695 uint32_t conn_err;
afaf5a2d 696 struct ddb_entry *ddb_entry;
821d6e54
VC		 697 struct dev_db_entry *fw_ddb_entry = NULL;
698 dma_addr_t fw_ddb_entry_dma;
699 uint32_t ipv6_device;
92b72736 700 uint32_t new_tgt;
afaf5a2d 701
821d6e54
VC		 702 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
703 &fw_ddb_entry_dma, GFP_KERNEL);
704 if (fw_ddb_entry == NULL) {
705 DEBUG2(dev_info(&ha->pdev->dev, "%s: DMA alloc failed\n",
706 __func__));
707 return QLA_ERROR;
708 }
709
afaf5a2d
DS		 710 dev_info(&ha->pdev->dev, "Initializing DDBs ...\n");
711 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES;
712 fw_ddb_index = next_fw_ddb_index) {
713 /* First, let's see if a device exists here */
821d6e54
VC		 714 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
715 0, NULL, &next_fw_ddb_index,
716 &ddb_state, &conn_err,
717 NULL, NULL) ==
718 QLA_ERROR) {
afaf5a2d
DS		 719 DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
720 "fw_ddb_index %d failed", ha->host_no,
721 __func__, fw_ddb_index));
722 return QLA_ERROR;
723 }
724
725 DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, "
726 "next_fw_ddb_index=%d.\n", ha->host_no, __func__,
727 fw_ddb_index, ddb_state, next_fw_ddb_index));
728
729 /* Issue relogin, if necessary. */
730 if (ddb_state == DDB_DS_SESSION_FAILED ||
731 ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) {
732 /* Try and login to device */
733 DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
734 ha->host_no, __func__, fw_ddb_index));
821d6e54
VC		 735 ipv6_device = le16_to_cpu(fw_ddb_entry->options) &
736 DDB_OPT_IPV6_DEVICE;
737 if (qla4_is_relogin_allowed(ha, conn_err) &&
738 ((!ipv6_device &&
739 *((uint32_t *)fw_ddb_entry->ip_addr))
740 || ipv6_device)) {
afaf5a2d 741 qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0);
92b72736 742 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index,
821d6e54
VC		 743 NULL, 0, NULL,
744 &next_fw_ddb_index,
745 &ddb_state, &conn_err,
746 NULL, NULL)
747 == QLA_ERROR) {
92b72736
DS		 748 DEBUG2(printk("scsi%ld: %s:"
749 "get_ddb_entry %d failed\n",
750 ha->host_no,
751 __func__, fw_ddb_index));
752 return QLA_ERROR;
753 }
754 }
afaf5a2d
DS		 755 }
756
757 if (ddb_state != DDB_DS_SESSION_ACTIVE)
758 goto next_one;
759 /*
760 * if fw_ddb with session active state found,
761 * add to ddb_list
762 */
763 DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n",
764 ha->host_no, __func__, fw_ddb_index));
765
766 /* Add DDB to internal our ddb list. */
92b72736 767 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
afaf5a2d
DS		 768 if (ddb_entry == NULL) {
769 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
770 "for device at fw_ddb_index %d\n",
771 ha->host_no, __func__, fw_ddb_index));
772 return QLA_ERROR;
773 }
774 /* Fill in the device structure */
775 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
776 QLA_ERROR) {
777 ha->fw_ddb_index_map[fw_ddb_index] =
778 (struct ddb_entry *)INVALID_ENTRY;
779
780
781 DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed "
782 "for fw_ddb_index %d.\n",
783 ha->host_no, __func__, fw_ddb_index));
784 return QLA_ERROR;
785 }
786
787next_one:
788 /* We know we've reached the last device when
789 * next_fw_ddb_index is 0 */
790 if (next_fw_ddb_index == 0)
791 break;
792 }
793
794 dev_info(&ha->pdev->dev, "DDB list done..\n");
795
796 return status;
797}
798
799struct qla4_relog_scan {
800 int halt_wait;
801 uint32_t conn_err;
afaf5a2d
DS		 802 uint32_t fw_ddb_index;
803 uint32_t next_fw_ddb_index;
804 uint32_t fw_ddb_device_state;
805};
806
807static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs)
808{
809 struct ddb_entry *ddb_entry;
810
821d6e54 811 if (qla4_is_relogin_allowed(ha, rs->conn_err)) {
afaf5a2d
DS		 812 /* We either have a device that is in
813 * the process of relogging in or a
814 * device that is waiting to be
815 * relogged in */
816 rs->halt_wait = 0;
817
818 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
819 rs->fw_ddb_index);
820 if (ddb_entry == NULL)
821 return QLA_ERROR;
822
823 if (ddb_entry->dev_scan_wait_to_start_relogin != 0
824 && time_after_eq(jiffies,
825 ddb_entry->
826 dev_scan_wait_to_start_relogin))
827 {
828 ddb_entry->dev_scan_wait_to_start_relogin = 0;
829 qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0);
830 }
831 }
832 return QLA_SUCCESS;
833}
834
835static int qla4_scan_for_relogin(struct scsi_qla_host *ha,
836 struct qla4_relog_scan *rs)
837{
838 int error;
839
840 /* scan for relogins
841 * ----------------- */
842 for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES;
843 rs->fw_ddb_index = rs->next_fw_ddb_index) {
844 if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0,
845 NULL, &rs->next_fw_ddb_index,
846 &rs->fw_ddb_device_state,
847 &rs->conn_err, NULL, NULL)
848 == QLA_ERROR)
849 return QLA_ERROR;
850
851 if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS)
852 rs->halt_wait = 0;
853
854 if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED ||
855 rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) {
856 error = qla4_test_rdy(ha, rs);
857 if (error)
858 return error;
859 }
860
861 /* We know we've reached the last device when
862 * next_fw_ddb_index is 0 */
863 if (rs->next_fw_ddb_index == 0)
864 break;
865 }
866 return QLA_SUCCESS;
867}
868
869/**
870 * qla4xxx_devices_ready - wait for target devices to be logged in
871 * @ha: pointer to adapter structure
872 *
873 * This routine waits up to ql4xdiscoverywait seconds
874 * F/W database during driver load time.
875 **/
876static int qla4xxx_devices_ready(struct scsi_qla_host *ha)
877{
878 int error;
879 unsigned long discovery_wtime;
880 struct qla4_relog_scan rs;
881
882 discovery_wtime = jiffies + (ql4xdiscoverywait * HZ);
883
884 DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait));
885 do {
886 /* poll for AEN. */
887 qla4xxx_get_firmware_state(ha);
888 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) {
889 /* Set time-between-relogin timer */
890 qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS);
891 }
892
893 /* if no relogins active or needed, halt discvery wait */
894 rs.halt_wait = 1;
895
896 error = qla4_scan_for_relogin(ha, &rs);
897
898 if (rs.halt_wait) {
899 DEBUG2(printk("scsi%ld: %s: Delay halted. Devices "
900 "Ready.\n", ha->host_no, __func__));
901 return QLA_SUCCESS;
902 }
903
904 msleep(2000);
905 } while (!time_after_eq(jiffies, discovery_wtime));
906
907 DEBUG3(qla4xxx_get_conn_event_log(ha));
908
909 return QLA_SUCCESS;
910}
911
912static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
913{
914 unsigned long wtime;
915
916 /* Flush the 0x8014 AEN from the firmware as a result of
917 * Auto connect. We are basically doing get_firmware_ddb()
918 * to determine whether we need to log back in or not.
919 * Trying to do a set ddb before we have processed 0x8014
920 * will result in another set_ddb() for the same ddb. In other
921 * words there will be stale entries in the aen_q.
922 */
923 wtime = jiffies + (2 * HZ);
924 do {
925 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
926 if (ha->firmware_state & (BIT_2 | BIT_0))
927 return;
928
929 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
930 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
931
932 msleep(1000);
933 } while (!time_after_eq(jiffies, wtime));
934
935}
936
937static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
938{
939 uint16_t fw_ddb_index;
940 int status = QLA_SUCCESS;
941
942 /* free the ddb list if is not empty */
943 if (!list_empty(&ha->ddb_list))
944 qla4xxx_free_ddb_list(ha);
945
946 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++)
947 ha->fw_ddb_index_map[fw_ddb_index] =
948 (struct ddb_entry *)INVALID_ENTRY;
949
950 ha->tot_ddbs = 0;
951
952 qla4xxx_flush_AENS(ha);
953
954 /*
955 * First perform device discovery for active
956 * fw ddb indexes and build
957 * ddb list.
958 */
959 if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR)
960 return status;
961
962 /* Wait for an AEN */
963 qla4xxx_devices_ready(ha);
964
965 /*
966 * Targets can come online after the inital discovery, so processing
967 * the aens here will catch them.
968 */
969 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
970 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
971
972 return status;
973}
974
975/**
976 * qla4xxx_update_ddb_list - update the driver ddb list
977 * @ha: pointer to host adapter structure.
978 *
979 * This routine obtains device information from the F/W database after
980 * firmware or adapter resets. The device table is preserved.
981 **/
982int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha)
983{
984 int status = QLA_SUCCESS;
985 struct ddb_entry *ddb_entry, *detemp;
986
987 /* Update the device information for all devices. */
988 list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) {
989 qla4xxx_update_ddb_entry(ha, ddb_entry,
990 ddb_entry->fw_ddb_index);
991 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
992 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
993 DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked "
994 "ONLINE\n", ha->host_no, __func__,
995 ddb_entry->fw_ddb_index));
996 } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
997 qla4xxx_mark_device_missing(ha, ddb_entry);
998 }
999 return status;
1000}
1001
1002/**
1003 * qla4xxx_relogin_device - re-establish session
1004 * @ha: Pointer to host adapter structure.
1005 * @ddb_entry: Pointer to device database entry
1006 *
1007 * This routine does a session relogin with the specified device.
1008 * The ddb entry must be assigned prior to making this call.
1009 **/
1010int qla4xxx_relogin_device(struct scsi_qla_host *ha,
1011 struct ddb_entry * ddb_entry)
1012{
1013 uint16_t relogin_timer;
1014
1015 relogin_timer = max(ddb_entry->default_relogin_timeout,
1016 (uint16_t)RELOGIN_TOV);
1017 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
1018
1019 DEBUG2(printk("scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
1020 ddb_entry->fw_ddb_index, relogin_timer));
1021
1022 qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0);
1023
1024 return QLA_SUCCESS;
1025}
1026
afaf5a2d
DS		 1027static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
1028{
1029 unsigned long flags;
1030 union external_hw_config_reg extHwConfig;
1031
1032 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
1033 __func__));
1034 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
b3925514 1035 return QLA_ERROR;
afaf5a2d
DS		 1036 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
1037 ql4xxx_unlock_flash(ha);
b3925514 1038 return QLA_ERROR;
afaf5a2d
DS		 1039 }
1040
1041 /* Get EEPRom Parameters from NVRAM and validate */
1042 dev_info(&ha->pdev->dev, "Configuring NVRAM ...\n");
1043 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
1044 spin_lock_irqsave(&ha->hardware_lock, flags);
1045 extHwConfig.Asuint32_t =
1046 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
1047 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1048 } else {
afaf5a2d
DS		 1049 dev_warn(&ha->pdev->dev,
1050 "scsi%ld: %s: EEProm checksum invalid. "
1051 "Please update your EEPROM\n", ha->host_no,
1052 __func__);
1053
b3925514 1054 /* Attempt to set defaults */
afaf5a2d
DS		 1055 if (is_qla4010(ha))
1056 extHwConfig.Asuint32_t = 0x1912;
d915058f 1057 else if (is_qla4022(ha) | is_qla4032(ha))
afaf5a2d 1058 extHwConfig.Asuint32_t = 0x0023;
b3925514
MC		 1059 else
1060 return QLA_ERROR;
afaf5a2d
DS		 1061 }
1062 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
1063 ha->host_no, __func__, extHwConfig.Asuint32_t));
1064
1065 spin_lock_irqsave(&ha->hardware_lock, flags);
1066 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
1067 readl(isp_ext_hw_conf(ha));
1068 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1069
1070 ql4xxx_unlock_nvram(ha);
1071 ql4xxx_unlock_flash(ha);
1072
b3925514 1073 return QLA_SUCCESS;
afaf5a2d
DS		 1074}
1075
1076static void qla4x00_pci_config(struct scsi_qla_host *ha)
1077{
92b72736 1078 uint16_t w;
46235e60 1079 int status;
afaf5a2d
DS		 1080
1081 dev_info(&ha->pdev->dev, "Configuring PCI space...\n");
1082
1083 pci_set_master(ha->pdev);
46235e60 1084 status = pci_set_mwi(ha->pdev);
afaf5a2d
DS		 1085 /*
1086 * We want to respect framework's setting of PCI configuration space
1087 * command register and also want to make sure that all bits of
1088 * interest to us are properly set in command register.
1089 */
1090 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
92b72736 1091 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
afaf5a2d
DS		 1092 w &= ~PCI_COMMAND_INTX_DISABLE;
1093 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
1094}
1095
1096static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
1097{
1098 int status = QLA_ERROR;
c301b026 1099 unsigned long max_wait_time;
afaf5a2d
DS		 1100 unsigned long flags;
1101 uint32_t mbox_status;
1102
1103 dev_info(&ha->pdev->dev, "Starting firmware ...\n");
1104
1105 /*
1106 * Start firmware from flash ROM
1107 *
1108 * WORKAROUND: Stuff a non-constant value that the firmware can
1109 * use as a seed for a random number generator in MB7 prior to
1110 * setting BOOT_ENABLE. Fixes problem where the TCP
1111 * connections use the same TCP ports after each reboot,
1112 * causing some connections to not get re-established.
1113 */
1114 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
1115 ha->host_no, __func__));
1116
1117 spin_lock_irqsave(&ha->hardware_lock, flags);
1118 writel(jiffies, &ha->reg->mailbox[7]);
d915058f 1119 if (is_qla4022(ha) | is_qla4032(ha))
afaf5a2d
DS		 1120 writel(set_rmask(NVR_WRITE_ENABLE),
1121 &ha->reg->u1.isp4022.nvram);
1122
92b72736
DS		 1123 writel(2, &ha->reg->mailbox[6]);
1124 readl(&ha->reg->mailbox[6]);
1125
afaf5a2d
DS		 1126 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
1127 readl(&ha->reg->ctrl_status);
1128 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1129
1130 /* Wait for firmware to come UP. */
c301b026
VC		 1131 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
1132 "boot firmware to complete...\n",
1133 ha->host_no, __func__, FIRMWARE_UP_TOV));
1134 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
afaf5a2d
DS		 1135 do {
1136 uint32_t ctrl_status;
1137
1138 spin_lock_irqsave(&ha->hardware_lock, flags);
1139 ctrl_status = readw(&ha->reg->ctrl_status);
1140 mbox_status = readw(&ha->reg->mailbox[0]);
1141 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1142
1143 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
1144 break;
1145 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
1146 break;
1147
c301b026
VC		 1148 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
1149 "firmware to complete... ctrl_sts=0x%x\n",
1150 ha->host_no, __func__, ctrl_status));
afaf5a2d 1151
c301b026
VC		 1152 msleep_interruptible(250);
1153 } while (!time_after_eq(jiffies, max_wait_time));
afaf5a2d
DS		 1154
1155 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
c301b026 1156 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
afaf5a2d
DS		 1157 ha->host_no, __func__));
1158
1159 spin_lock_irqsave(&ha->hardware_lock, flags);
1160 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
1161 &ha->reg->ctrl_status);
1162 readl(&ha->reg->ctrl_status);
1163 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1164
1165 status = QLA_SUCCESS;
1166 } else {
1167 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
1168 "- mbox status 0x%x\n", ha->host_no, __func__,
1169 mbox_status);
1170 status = QLA_ERROR;
1171 }
1172 return status;
1173}
1174
92b72736 1175int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
afaf5a2d 1176{
92b72736 1177#define QL4_LOCK_DRVR_WAIT 60
477ffb9d 1178#define QL4_LOCK_DRVR_SLEEP 1
afaf5a2d
DS		 1179
1180 int drvr_wait = QL4_LOCK_DRVR_WAIT;
1181 while (drvr_wait) {
92b72736 1182 if (ql4xxx_lock_drvr(a) == 0) {
477ffb9d 1183 ssleep(QL4_LOCK_DRVR_SLEEP);
afaf5a2d
DS		 1184 if (drvr_wait) {
1185 DEBUG2(printk("scsi%ld: %s: Waiting for "
92b72736
DS		 1186 "Global Init Semaphore(%d)...\n",
1187 a->host_no,
477ffb9d 1188 __func__, drvr_wait));
afaf5a2d
DS		 1189 }
1190 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
1191 } else {
1192 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
92b72736 1193 "acquired\n", a->host_no, __func__));
afaf5a2d
DS		 1194 return QLA_SUCCESS;
1195 }
1196 }
1197 return QLA_ERROR;
1198}
1199
1200/**
1201 * qla4xxx_start_firmware - starts qla4xxx firmware
1202 * @ha: Pointer to host adapter structure.
1203 *
3a4fa0a2 1204 * This routine performs the necessary steps to start the firmware for
afaf5a2d
DS		 1205 * the QLA4010 adapter.
1206 **/
1207static int qla4xxx_start_firmware(struct scsi_qla_host *ha)
1208{
1209 unsigned long flags = 0;
1210 uint32_t mbox_status;
1211 int status = QLA_ERROR;
1212 int soft_reset = 1;
1213 int config_chip = 0;
1214
d915058f 1215 if (is_qla4022(ha) | is_qla4032(ha))
afaf5a2d
DS		 1216 ql4xxx_set_mac_number(ha);
1217
1218 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
1219 return QLA_ERROR;
1220
1221 spin_lock_irqsave(&ha->hardware_lock, flags);
1222
1223 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
1224 __func__, readw(isp_port_ctrl(ha))));
1225 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
1226 __func__, readw(isp_port_status(ha))));
1227
1228 /* Is Hardware already initialized? */
1229 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
1230 DEBUG(printk("scsi%ld: %s: Hardware has already been "
1231 "initialized\n", ha->host_no, __func__));
1232
1233 /* Receive firmware boot acknowledgement */
1234 mbox_status = readw(&ha->reg->mailbox[0]);
1235
1236 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
1237 "0x%x\n", ha->host_no, __func__, mbox_status));
1238
1239 /* Is firmware already booted? */
1240 if (mbox_status == 0) {
1241 /* F/W not running, must be config by net driver */
1242 config_chip = 1;
1243 soft_reset = 0;
1244 } else {
1245 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
1246 &ha->reg->ctrl_status);
1247 readl(&ha->reg->ctrl_status);
1248 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1249 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
1250 DEBUG2(printk("scsi%ld: %s: Get firmware "
1251 "state -- state = 0x%x\n",
1252 ha->host_no,
1253 __func__, ha->firmware_state));
1254 /* F/W is running */
1255 if (ha->firmware_state &
1256 FW_STATE_CONFIG_WAIT) {
1257 DEBUG2(printk("scsi%ld: %s: Firmware "
1258 "in known state -- "
1259 "config and "
1260 "boot, state = 0x%x\n",
1261 ha->host_no, __func__,
1262 ha->firmware_state));
1263 config_chip = 1;
1264 soft_reset = 0;
1265 }
1266 } else {
1267 DEBUG2(printk("scsi%ld: %s: Firmware in "
1268 "unknown state -- resetting,"
1269 " state = "
1270 "0x%x\n", ha->host_no, __func__,
1271 ha->firmware_state));
1272 }
1273 spin_lock_irqsave(&ha->hardware_lock, flags);
1274 }
1275 } else {
1276 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
1277 "started - resetting\n", ha->host_no, __func__));
1278 }
1279 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1280
1281 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
1282 ha->host_no, __func__, soft_reset, config_chip));
1283 if (soft_reset) {
1284 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
1285 __func__));
1286 status = qla4xxx_soft_reset(ha);
1287 if (status == QLA_ERROR) {
1288 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
1289 ha->host_no, __func__));
1290 ql4xxx_unlock_drvr(ha);
1291 return QLA_ERROR;
1292 }
1293 config_chip = 1;
1294
b1c11812 1295 /* Reset clears the semaphore, so acquire again */
afaf5a2d
DS		 1296 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
1297 return QLA_ERROR;
1298 }
1299
1300 if (config_chip) {
1301 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
1302 status = qla4xxx_start_firmware_from_flash(ha);
1303 }
1304
1305 ql4xxx_unlock_drvr(ha);
1306 if (status == QLA_SUCCESS) {
1307 qla4xxx_get_fw_version(ha);
1308 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
1309 qla4xxx_get_crash_record(ha);
1310 } else {
1311 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
1312 ha->host_no, __func__));
1313 }
1314 return status;
1315}
1316
1317
1318/**
1319 * qla4xxx_initialize_adapter - initiailizes hba
1320 * @ha: Pointer to host adapter structure.
1321 * @renew_ddb_list: Indicates what to do with the adapter's ddb list
1322 * after adapter recovery has completed.
1323 * 0=preserve ddb list, 1=destroy and rebuild ddb list
1324 *
1325 * This routine parforms all of the steps necessary to initialize the adapter.
1326 *
1327 **/
1328int qla4xxx_initialize_adapter(struct scsi_qla_host *ha,
1329 uint8_t renew_ddb_list)
1330{
1331 int status = QLA_ERROR;
1332 int8_t ip_address[IP_ADDR_LEN] = {0} ;
1333
065aa1b4 1334 clear_bit(AF_ONLINE, &ha->flags);
afaf5a2d
DS		 1335 ha->eeprom_cmd_data = 0;
1336
1337 qla4x00_pci_config(ha);
1338
1339 qla4xxx_disable_intrs(ha);
1340
1341 /* Initialize the Host adapter request/response queues and firmware */
1342 if (qla4xxx_start_firmware(ha) == QLA_ERROR)
46235e60 1343 goto exit_init_hba;
afaf5a2d
DS		 1344
1345 if (qla4xxx_validate_mac_address(ha) == QLA_ERROR)
46235e60 1346 goto exit_init_hba;
afaf5a2d
DS		 1347
1348 if (qla4xxx_init_local_data(ha) == QLA_ERROR)
46235e60 1349 goto exit_init_hba;
afaf5a2d
DS		 1350
1351 status = qla4xxx_init_firmware(ha);
1352 if (status == QLA_ERROR)
46235e60 1353 goto exit_init_hba;
afaf5a2d
DS		 1354
1355 /*
1356 * FW is waiting to get an IP address from DHCP server: Skip building
1357 * the ddb_list and wait for DHCP lease acquired aen to come in
1358 * followed by 0x8014 aen" to trigger the tgt discovery process.
1359 */
2a49a78e 1360 if (ha->firmware_state & FW_STATE_CONFIGURING_IP)
46235e60 1361 goto exit_init_online;
afaf5a2d
DS		 1362
1363 /* Skip device discovery if ip and subnet is zero */
1364 if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 ||
1365 memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0)
46235e60 1366 goto exit_init_online;
afaf5a2d
DS		 1367
1368 if (renew_ddb_list == PRESERVE_DDB_LIST) {
1369 /*
1370 * We want to preserve lun states (i.e. suspended, etc.)
1371 * for recovery initiated by the driver. So just update
1372 * the device states for the existing ddb_list.
1373 */
1374 qla4xxx_reinitialize_ddb_list(ha);
1375 } else if (renew_ddb_list == REBUILD_DDB_LIST) {
1376 /*
1377 * We want to build the ddb_list from scratch during
1378 * driver initialization and recovery initiated by the
1379 * INT_HBA_RESET IOCTL.
1380 */
1381 status = qla4xxx_initialize_ddb_list(ha);
1382 if (status == QLA_ERROR) {
1383 DEBUG2(printk("%s(%ld) Error occurred during build"
1384 "ddb list\n", __func__, ha->host_no));
1385 goto exit_init_hba;
1386 }
1387
1388 }
1389 if (!ha->tot_ddbs) {
1390 DEBUG2(printk("scsi%ld: Failed to initialize devices or none "
1391 "present in Firmware device database\n",
1392 ha->host_no));
1393 }
1394
46235e60 1395exit_init_online:
92b72736 1396 set_bit(AF_ONLINE, &ha->flags);
46235e60 1397exit_init_hba:
afaf5a2d 1398 return status;
afaf5a2d
DS		 1399}
1400
1401/**
1402 * qla4xxx_add_device_dynamically - ddb addition due to an AEN
1403 * @ha: Pointer to host adapter structure.
1404 * @fw_ddb_index: Firmware's device database index
1405 *
1406 * This routine processes adds a device as a result of an 8014h AEN.
1407 **/
1408static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha,
1409 uint32_t fw_ddb_index)
1410{
1411 struct ddb_entry * ddb_entry;
92b72736 1412 uint32_t new_tgt;
afaf5a2d
DS		 1413
1414 /* First allocate a device structure */
92b72736 1415 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
afaf5a2d
DS		 1416 if (ddb_entry == NULL) {
1417 DEBUG2(printk(KERN_WARNING
1418 "scsi%ld: Unable to allocate memory to add "
1419 "fw_ddb_index %d\n", ha->host_no, fw_ddb_index));
1420 return;
1421 }
1422
92b72736
DS		 1423 if (!new_tgt && (ddb_entry->fw_ddb_index != fw_ddb_index)) {
1424 /* Target has been bound to a new fw_ddb_index */
1425 qla4xxx_free_ddb(ha, ddb_entry);
1426 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
1427 if (ddb_entry == NULL) {
1428 DEBUG2(printk(KERN_WARNING
1429 "scsi%ld: Unable to allocate memory"
1430 " to add fw_ddb_index %d\n",
1431 ha->host_no, fw_ddb_index));
1432 return;
1433 }
1434 }
afaf5a2d
DS		 1435 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
1436 QLA_ERROR) {
1437 ha->fw_ddb_index_map[fw_ddb_index] =
1438 (struct ddb_entry *)INVALID_ENTRY;
1439 DEBUG2(printk(KERN_WARNING
1440 "scsi%ld: failed to add new device at index "
1441 "[%d]\n Unable to retrieve fw ddb entry\n",
1442 ha->host_no, fw_ddb_index));
1443 qla4xxx_free_ddb(ha, ddb_entry);
1444 return;
1445 }
1446
1447 if (qla4xxx_add_sess(ddb_entry)) {
1448 DEBUG2(printk(KERN_WARNING
1449 "scsi%ld: failed to add new device at index "
1450 "[%d]\n Unable to add connection and session\n",
1451 ha->host_no, fw_ddb_index));
1452 qla4xxx_free_ddb(ha, ddb_entry);
1453 }
1454}
1455
1456/**
1457 * qla4xxx_process_ddb_changed - process ddb state change
1458 * @ha - Pointer to host adapter structure.
1459 * @fw_ddb_index - Firmware's device database index
1460 * @state - Device state
1461 *
1462 * This routine processes a Decive Database Changed AEN Event.
1463 **/
821d6e54
VC		 1464int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1465 uint32_t state, uint32_t conn_err)
afaf5a2d
DS		 1466{
1467 struct ddb_entry * ddb_entry;
1468 uint32_t old_fw_ddb_device_state;
1469
1470 /* check for out of range index */
1471 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1472 return QLA_ERROR;
1473
1474 /* Get the corresponging ddb entry */
1475 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1476 /* Device does not currently exist in our database. */
1477 if (ddb_entry == NULL) {
1478 if (state == DDB_DS_SESSION_ACTIVE)
1479 qla4xxx_add_device_dynamically(ha, fw_ddb_index);
1480 return QLA_SUCCESS;
1481 }
1482
1483 /* Device already exists in our database. */
1484 old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
1485 DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
1486 "index [%d]\n", ha->host_no, __func__,
1487 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
1488 if (old_fw_ddb_device_state == state &&
1489 state == DDB_DS_SESSION_ACTIVE) {
1490 /* Do nothing, state not changed. */
1491 return QLA_SUCCESS;
1492 }
1493
1494 ddb_entry->fw_ddb_device_state = state;
1495 /* Device is back online. */
1496 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
50a29aec 1497 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
afaf5a2d
DS		 1498 atomic_set(&ddb_entry->port_down_timer,
1499 ha->port_down_retry_count);
afaf5a2d
DS		 1500 atomic_set(&ddb_entry->relogin_retry_count, 0);
1501 atomic_set(&ddb_entry->relogin_timer, 0);
1502 clear_bit(DF_RELOGIN, &ddb_entry->flags);
1503 clear_bit(DF_NO_RELOGIN, &ddb_entry->flags);
b635930d 1504 iscsi_unblock_session(ddb_entry->sess);
26974789
MC		 1505 iscsi_session_event(ddb_entry->sess,
1506 ISCSI_KEVENT_CREATE_SESSION);
afaf5a2d
DS		 1507 /*
1508 * Change the lun state to READY in case the lun TIMEOUT before
1509 * the device came back.
1510 */
1511 } else {
065aa1b4
VC		 1512 /* Device went away, mark device missing */
1513 if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) {
1514 DEBUG2(dev_info(&ha->pdev->dev, "%s mark missing "
1515 "ddb_entry 0x%p sess 0x%p conn 0x%p\n",
1516 __func__, ddb_entry,
1517 ddb_entry->sess, ddb_entry->conn));
afaf5a2d 1518 qla4xxx_mark_device_missing(ha, ddb_entry);
065aa1b4
VC		 1519 }
1520
afaf5a2d
DS		 1521 /*
1522 * Relogin if device state changed to a not active state.
821d6e54
VC		 1523 * However, do not relogin if a RELOGIN is in process, or
1524 * we are not allowed to relogin to this DDB.
afaf5a2d
DS		 1525 */
1526 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
1527 !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
1528 !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) &&
821d6e54 1529 qla4_is_relogin_allowed(ha, conn_err)) {
afaf5a2d
DS		 1530 /*
1531 * This triggers a relogin. After the relogin_timer
1532 * expires, the relogin gets scheduled. We must wait a
1533 * minimum amount of time since receiving an 0x8014 AEN
1534 * with failed device_state or a logout response before
1535 * we can issue another relogin.
1536 */
821d6e54 1537 /* Firmware pads this timeout: (time2wait +1).
afaf5a2d
DS		 1538 * Driver retry to login should be longer than F/W.
1539 * Otherwise F/W will fail
1540 * set_ddb() mbx cmd with 0x4005 since it still
1541 * counting down its time2wait.
1542 */
1543 atomic_set(&ddb_entry->relogin_timer, 0);
1544 atomic_set(&ddb_entry->retry_relogin_timer,
1545 ddb_entry->default_time2wait + 4);
1546 }
1547 }
1548
1549 return QLA_SUCCESS;
1550}
1551
Linux kernel - Deliverables
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