blob: 48e2241ddaf49ec37f3f8d4fe61ca545c52458f7 [file] [log] [blame]
David Somayajuluafaf5a22006-09-19 10:28:00 -07001/*
2 * QLogic iSCSI HBA Driver
Vikas Chaudhary7d01d062010-12-02 22:12:51 -08003 * Copyright (c) 2003-2010 QLogic Corporation
David Somayajuluafaf5a22006-09-19 10:28:00 -07004 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7
Mike Christie26974782007-12-13 12:43:29 -06008#include <scsi/iscsi_if.h>
David Somayajuluafaf5a22006-09-19 10:28:00 -07009#include "ql4_def.h"
David C Somayajulu92b72732007-05-23 17:55:40 -070010#include "ql4_glbl.h"
11#include "ql4_dbg.h"
12#include "ql4_inline.h"
David Somayajuluafaf5a22006-09-19 10:28:00 -070013
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +053014static struct ddb_entry *qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
15 uint32_t fw_ddb_index);
David Somayajuluafaf5a22006-09-19 10:28:00 -070016
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 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +053054void qla4xxx_free_ddb(struct scsi_qla_host *ha,
55 struct ddb_entry *ddb_entry)
David Somayajuluafaf5a22006-09-19 10:28:00 -070056{
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/**
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +053089 * qla4xxx_init_response_q_entries() - Initializes response queue entries.
90 * @ha: HA context
91 *
92 * Beginning of request ring has initialization control block already built
93 * by nvram config routine.
94 **/
95static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)
96{
97 uint16_t cnt;
98 struct response *pkt;
99
100 pkt = (struct response *)ha->response_ptr;
101 for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {
102 pkt->signature = RESPONSE_PROCESSED;
103 pkt++;
104 }
105}
106
107/**
David Somayajuluafaf5a22006-09-19 10:28:00 -0700108 * qla4xxx_init_rings - initialize hw queues
109 * @ha: pointer to host adapter structure.
110 *
111 * This routine initializes the internal queues for the specified adapter.
112 * The QLA4010 requires us to restart the queues at index 0.
113 * The QLA4000 doesn't care, so just default to QLA4010's requirement.
114 **/
115int qla4xxx_init_rings(struct scsi_qla_host *ha)
116{
117 unsigned long flags = 0;
118
119 /* Initialize request queue. */
120 spin_lock_irqsave(&ha->hardware_lock, flags);
121 ha->request_out = 0;
122 ha->request_in = 0;
123 ha->request_ptr = &ha->request_ring[ha->request_in];
124 ha->req_q_count = REQUEST_QUEUE_DEPTH;
125
126 /* Initialize response queue. */
127 ha->response_in = 0;
128 ha->response_out = 0;
129 ha->response_ptr = &ha->response_ring[ha->response_out];
130
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530131 if (is_qla8022(ha)) {
132 writel(0,
133 (unsigned long __iomem *)&ha->qla4_8xxx_reg->req_q_out);
134 writel(0,
135 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_in);
136 writel(0,
137 (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_out);
138 } else {
139 /*
140 * Initialize DMA Shadow registers. The firmware is really
141 * supposed to take care of this, but on some uniprocessor
142 * systems, the shadow registers aren't cleared-- causing
143 * the interrupt_handler to think there are responses to be
144 * processed when there aren't.
145 */
146 ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
147 ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
148 wmb();
David Somayajuluafaf5a22006-09-19 10:28:00 -0700149
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530150 writel(0, &ha->reg->req_q_in);
151 writel(0, &ha->reg->rsp_q_out);
152 readl(&ha->reg->rsp_q_out);
153 }
154
155 qla4xxx_init_response_q_entries(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700156
157 spin_unlock_irqrestore(&ha->hardware_lock, flags);
158
159 return QLA_SUCCESS;
160}
161
162/**
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530163 * qla4xxx_get_sys_info - validate adapter MAC address(es)
David Somayajuluafaf5a22006-09-19 10:28:00 -0700164 * @ha: pointer to host adapter structure.
165 *
166 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530167int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -0700168{
169 struct flash_sys_info *sys_info;
170 dma_addr_t sys_info_dma;
171 int status = QLA_ERROR;
172
173 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
174 &sys_info_dma, GFP_KERNEL);
175 if (sys_info == NULL) {
176 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
177 ha->host_no, __func__));
178
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530179 goto exit_get_sys_info_no_free;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700180 }
181 memset(sys_info, 0, sizeof(*sys_info));
182
183 /* Get flash sys info */
184 if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
185 sizeof(*sys_info)) != QLA_SUCCESS) {
186 DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
187 "failed\n", ha->host_no, __func__));
188
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530189 goto exit_get_sys_info;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700190 }
191
192 /* Save M.A.C. address & serial_number */
193 memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
194 min(sizeof(ha->my_mac),
195 sizeof(sys_info->physAddr[0].address)));
196 memcpy(ha->serial_number, &sys_info->acSerialNumber,
197 min(sizeof(ha->serial_number),
198 sizeof(sys_info->acSerialNumber)));
199
200 status = QLA_SUCCESS;
201
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530202exit_get_sys_info:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700203 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
204 sys_info_dma);
205
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530206exit_get_sys_info_no_free:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700207 return status;
208}
209
210/**
211 * qla4xxx_init_local_data - initialize adapter specific local data
212 * @ha: pointer to host adapter structure.
213 *
214 **/
215static int qla4xxx_init_local_data(struct scsi_qla_host *ha)
216{
Uwe Kleine-König421f91d2010-06-11 12:17:00 +0200217 /* Initialize aen queue */
David Somayajuluafaf5a22006-09-19 10:28:00 -0700218 ha->aen_q_count = MAX_AEN_ENTRIES;
219
220 return qla4xxx_get_firmware_status(ha);
221}
222
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530223static uint8_t
224qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
225{
226 uint8_t ipv4_wait = 0;
227 uint8_t ipv6_wait = 0;
228 int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
229
230 /* If both IPv4 & IPv6 are enabled, possibly only one
231 * IP address may be acquired, so check to see if we
232 * need to wait for another */
233 if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
234 if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
235 ((ha->addl_fw_state &
236 FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
237 ipv4_wait = 1;
238 }
239 if (((ha->ipv6_addl_options &
240 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
241 ((ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) ||
242 (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) ||
243 (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING))) {
244
245 ipv6_wait = 1;
246
247 if ((ha->ipv6_link_local_state ==
248 IP_ADDRSTATE_PREFERRED) ||
249 (ha->ipv6_addr0_state == IP_ADDRSTATE_PREFERRED) ||
250 (ha->ipv6_addr1_state == IP_ADDRSTATE_PREFERRED)) {
251 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
252 "Preferred IP configured."
253 " Don't wait!\n", ha->host_no,
254 __func__));
255 ipv6_wait = 0;
256 }
257 if (memcmp(&ha->ipv6_default_router_addr, ip_address,
258 IPv6_ADDR_LEN) == 0) {
259 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
260 "No Router configured. "
261 "Don't wait!\n", ha->host_no,
262 __func__));
263 ipv6_wait = 0;
264 }
265 if ((ha->ipv6_default_router_state ==
266 IPV6_RTRSTATE_MANUAL) &&
267 (ha->ipv6_link_local_state ==
268 IP_ADDRSTATE_TENTATIVE) &&
269 (memcmp(&ha->ipv6_link_local_addr,
270 &ha->ipv6_default_router_addr, 4) == 0)) {
271 DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
272 "IP configured. Don't wait!\n",
273 ha->host_no, __func__));
274 ipv6_wait = 0;
275 }
276 }
277 if (ipv4_wait || ipv6_wait) {
278 DEBUG2(printk("scsi%ld: %s: Wait for additional "
279 "IP(s) \"", ha->host_no, __func__));
280 if (ipv4_wait)
281 DEBUG2(printk("IPv4 "));
282 if (ha->ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING)
283 DEBUG2(printk("IPv6LinkLocal "));
284 if (ha->ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING)
285 DEBUG2(printk("IPv6Addr0 "));
286 if (ha->ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING)
287 DEBUG2(printk("IPv6Addr1 "));
288 DEBUG2(printk("\"\n"));
289 }
290 }
291
292 return ipv4_wait|ipv6_wait;
293}
294
David Somayajuluafaf5a22006-09-19 10:28:00 -0700295static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
296{
297 uint32_t timeout_count;
298 int ready = 0;
299
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530300 DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
David Somayajuluafaf5a22006-09-19 10:28:00 -0700301 for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
302 timeout_count--) {
303 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
304 qla4xxx_get_dhcp_ip_address(ha);
305
306 /* Get firmware state. */
307 if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
308 DEBUG2(printk("scsi%ld: %s: unable to get firmware "
309 "state\n", ha->host_no, __func__));
310 break;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700311 }
312
313 if (ha->firmware_state & FW_STATE_ERROR) {
314 DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
315 " occurred\n", ha->host_no, __func__));
316 break;
317
318 }
319 if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
320 /*
321 * The firmware has not yet been issued an Initialize
322 * Firmware command, so issue it now.
323 */
324 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
325 break;
326
327 /* Go back and test for ready state - no wait. */
328 continue;
329 }
330
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530331 if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
332 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
333 "AUTOCONNECT in progress\n",
334 ha->host_no, __func__));
335 }
David Somayajuluafaf5a22006-09-19 10:28:00 -0700336
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530337 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
338 DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
339 " CONFIGURING IP\n",
340 ha->host_no, __func__));
341 /*
342 * Check for link state after 15 secs and if link is
343 * still DOWN then, cable is unplugged. Ignore "DHCP
344 * in Progress/CONFIGURING IP" bit to check if firmware
345 * is in ready state or not after 15 secs.
346 * This is applicable for both 2.x & 3.x firmware
347 */
348 if (timeout_count <= (ADAPTER_INIT_TOV - 15)) {
349 if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) {
350 DEBUG2(printk(KERN_INFO "scsi%ld: %s:"
351 " LINK UP (Cable plugged)\n",
352 ha->host_no, __func__));
353 } else if (ha->firmware_state &
354 (FW_STATE_CONFIGURING_IP |
355 FW_STATE_READY)) {
356 DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
357 "LINK DOWN (Cable unplugged)\n",
358 ha->host_no, __func__));
359 ha->firmware_state = FW_STATE_READY;
360 }
361 }
362 }
363
364 if (ha->firmware_state == FW_STATE_READY) {
365 /* If DHCP IP Addr is available, retrieve it now. */
366 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR,
367 &ha->dpc_flags))
368 qla4xxx_get_dhcp_ip_address(ha);
369
370 if (!qla4xxx_wait_for_ip_config(ha) ||
371 timeout_count == 1) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530372 DEBUG2(ql4_printk(KERN_INFO, ha,
373 "Firmware Ready..\n"));
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530374 /* The firmware is ready to process SCSI
375 commands. */
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530376 DEBUG2(ql4_printk(KERN_INFO, ha,
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530377 "scsi%ld: %s: MEDIA TYPE"
378 " - %s\n", ha->host_no,
379 __func__, (ha->addl_fw_state &
380 FW_ADDSTATE_OPTICAL_MEDIA)
381 != 0 ? "OPTICAL" : "COPPER"));
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530382 DEBUG2(ql4_printk(KERN_INFO, ha,
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530383 "scsi%ld: %s: DHCPv4 STATE"
384 " Enabled %s\n", ha->host_no,
385 __func__, (ha->addl_fw_state &
386 FW_ADDSTATE_DHCPv4_ENABLED) != 0 ?
387 "YES" : "NO"));
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530388 DEBUG2(ql4_printk(KERN_INFO, ha,
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530389 "scsi%ld: %s: LINK %s\n",
390 ha->host_no, __func__,
391 (ha->addl_fw_state &
392 FW_ADDSTATE_LINK_UP) != 0 ?
393 "UP" : "DOWN"));
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530394 DEBUG2(ql4_printk(KERN_INFO, ha,
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530395 "scsi%ld: %s: iSNS Service "
396 "Started %s\n",
397 ha->host_no, __func__,
398 (ha->addl_fw_state &
399 FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
400 "YES" : "NO"));
401
402 ready = 1;
403 break;
404 }
David Somayajuluafaf5a22006-09-19 10:28:00 -0700405 }
406 DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
407 "seconds expired= %d\n", ha->host_no, __func__,
408 ha->firmware_state, ha->addl_fw_state,
409 timeout_count));
David C Somayajulud9150582006-11-15 17:38:40 -0800410 if (is_qla4032(ha) &&
411 !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
412 (timeout_count < ADAPTER_INIT_TOV - 5)) {
413 break;
414 }
415
David Somayajuluafaf5a22006-09-19 10:28:00 -0700416 msleep(1000);
417 } /* end of for */
418
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530419 if (timeout_count <= 0)
David Somayajuluafaf5a22006-09-19 10:28:00 -0700420 DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
421 ha->host_no, __func__));
422
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530423 if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
424 DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting "
425 "it's waiting to configure an IP address\n",
426 ha->host_no, __func__));
David Somayajuluafaf5a22006-09-19 10:28:00 -0700427 ready = 1;
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530428 } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
429 DEBUG2(printk("scsi%ld: %s: FW initialized, but "
430 "auto-discovery still in process\n",
431 ha->host_no, __func__));
Vikas Chaudharyb9663462010-07-10 14:49:19 +0530432 ready = 1;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700433 }
434
435 return ready;
436}
437
438/**
439 * qla4xxx_init_firmware - initializes the firmware.
440 * @ha: pointer to host adapter structure.
441 *
442 **/
443static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
444{
445 int status = QLA_ERROR;
446
Lalit Chandivade2232be02010-07-30 14:38:47 +0530447 if (is_aer_supported(ha) &&
448 test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
449 return status;
450
Lalit Chandivade9d4946f2010-07-30 14:26:31 +0530451 /* For 82xx, stop firmware before initializing because if BIOS
452 * has previously initialized firmware, then driver's initialize
453 * firmware will fail. */
454 if (is_qla8022(ha))
455 qla4_8xxx_stop_firmware(ha);
456
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530457 ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -0700458 if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
459 DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
460 "control block\n", ha->host_no, __func__));
461 return status;
462 }
463 if (!qla4xxx_fw_ready(ha))
464 return status;
465
David Somayajuluafaf5a22006-09-19 10:28:00 -0700466 return qla4xxx_get_firmware_status(ha);
467}
468
469static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha,
David C Somayajulu92b72732007-05-23 17:55:40 -0700470 uint32_t fw_ddb_index,
471 uint32_t *new_tgt)
David Somayajuluafaf5a22006-09-19 10:28:00 -0700472{
473 struct dev_db_entry *fw_ddb_entry = NULL;
474 dma_addr_t fw_ddb_entry_dma;
475 struct ddb_entry *ddb_entry = NULL;
476 int found = 0;
477 uint32_t device_state;
478
David C Somayajulu92b72732007-05-23 17:55:40 -0700479 *new_tgt = 0;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700480 /* Make sure the dma buffer is valid */
481 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
482 sizeof(*fw_ddb_entry),
483 &fw_ddb_entry_dma, GFP_KERNEL);
484 if (fw_ddb_entry == NULL) {
485 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
486 ha->host_no, __func__));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530487 goto exit_get_ddb_entry_no_free;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700488 }
489
490 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
491 fw_ddb_entry_dma, NULL, NULL,
492 &device_state, NULL, NULL, NULL) ==
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530493 QLA_ERROR) {
David Somayajuluafaf5a22006-09-19 10:28:00 -0700494 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
495 "fw_ddb_index %d\n", ha->host_no, __func__,
496 fw_ddb_index));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530497 goto exit_get_ddb_entry;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700498 }
499
500 /* Allocate DDB if not already allocated. */
501 DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no,
502 __func__, fw_ddb_index));
503 list_for_each_entry(ddb_entry, &ha->ddb_list, list) {
Mike Christie41bbdbe2009-01-16 12:36:52 -0600504 if ((memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsi_name,
505 ISCSI_NAME_SIZE) == 0) &&
506 (ddb_entry->tpgt ==
507 le32_to_cpu(fw_ddb_entry->tgt_portal_grp)) &&
508 (memcmp(ddb_entry->isid, fw_ddb_entry->isid,
509 sizeof(ddb_entry->isid)) == 0)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -0700510 found++;
511 break;
512 }
513 }
514
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530515 /* if not found allocate new ddb */
David Somayajuluafaf5a22006-09-19 10:28:00 -0700516 if (!found) {
517 DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating "
518 "new ddb\n", ha->host_no, __func__,
519 fw_ddb_index));
David C Somayajulu92b72732007-05-23 17:55:40 -0700520 *new_tgt = 1;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700521 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
522 }
523
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530524exit_get_ddb_entry:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700525 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
526 fw_ddb_entry_dma);
527
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530528exit_get_ddb_entry_no_free:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700529 return ddb_entry;
530}
531
532/**
533 * qla4xxx_update_ddb_entry - update driver's internal ddb
534 * @ha: pointer to host adapter structure.
535 * @ddb_entry: pointer to device database structure to be filled
536 * @fw_ddb_index: index of the ddb entry in fw ddb table
537 *
538 * This routine updates the driver's internal device database entry
539 * with information retrieved from the firmware's device database
540 * entry for the specified device. The ddb_entry->fw_ddb_index field
541 * must be initialized prior to calling this routine
542 *
543 **/
Adrian Bunk47975472007-04-26 00:35:16 -0700544static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
545 struct ddb_entry *ddb_entry,
546 uint32_t fw_ddb_index)
David Somayajuluafaf5a22006-09-19 10:28:00 -0700547{
548 struct dev_db_entry *fw_ddb_entry = NULL;
549 dma_addr_t fw_ddb_entry_dma;
550 int status = QLA_ERROR;
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530551 uint32_t conn_err;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700552
553 if (ddb_entry == NULL) {
554 DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no,
555 __func__));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530556
557 goto exit_update_ddb_no_free;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700558 }
559
560 /* Make sure the dma buffer is valid */
561 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
562 sizeof(*fw_ddb_entry),
563 &fw_ddb_entry_dma, GFP_KERNEL);
564 if (fw_ddb_entry == NULL) {
565 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
566 ha->host_no, __func__));
567
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530568 goto exit_update_ddb_no_free;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700569 }
570
571 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
572 fw_ddb_entry_dma, NULL, NULL,
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530573 &ddb_entry->fw_ddb_device_state, &conn_err,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700574 &ddb_entry->tcp_source_port_num,
575 &ddb_entry->connection_id) ==
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530576 QLA_ERROR) {
David Somayajuluafaf5a22006-09-19 10:28:00 -0700577 DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
578 "fw_ddb_index %d\n", ha->host_no, __func__,
579 fw_ddb_index));
580
581 goto exit_update_ddb;
582 }
583
584 status = QLA_SUCCESS;
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530585 ddb_entry->options = le16_to_cpu(fw_ddb_entry->options);
David C Somayajulu92b72732007-05-23 17:55:40 -0700586 ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700587 ddb_entry->task_mgmt_timeout =
David C Somayajulu92b72732007-05-23 17:55:40 -0700588 le16_to_cpu(fw_ddb_entry->def_timeout);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700589 ddb_entry->CmdSn = 0;
David C Somayajulu92b72732007-05-23 17:55:40 -0700590 ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700591 ddb_entry->default_relogin_timeout =
David C Somayajulu92b72732007-05-23 17:55:40 -0700592 le16_to_cpu(fw_ddb_entry->def_timeout);
593 ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700594
595 /* Update index in case it changed */
596 ddb_entry->fw_ddb_index = fw_ddb_index;
597 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
598
David C Somayajulu92b72732007-05-23 17:55:40 -0700599 ddb_entry->port = le16_to_cpu(fw_ddb_entry->port);
600 ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
Mike Christie41bbdbe2009-01-16 12:36:52 -0600601 memcpy(ddb_entry->isid, fw_ddb_entry->isid, sizeof(ddb_entry->isid));
602
David C Somayajulu92b72732007-05-23 17:55:40 -0700603 memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
David Somayajuluafaf5a22006-09-19 10:28:00 -0700604 min(sizeof(ddb_entry->iscsi_name),
David C Somayajulu92b72732007-05-23 17:55:40 -0700605 sizeof(fw_ddb_entry->iscsi_name)));
Vikas Chaudhary3b2bef12010-07-10 14:51:30 +0530606 memcpy(&ddb_entry->iscsi_alias[0], &fw_ddb_entry->iscsi_alias[0],
607 min(sizeof(ddb_entry->iscsi_alias),
608 sizeof(fw_ddb_entry->iscsi_alias)));
David C Somayajulu92b72732007-05-23 17:55:40 -0700609 memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0],
610 min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr)));
David Somayajuluafaf5a22006-09-19 10:28:00 -0700611
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530612 ddb_entry->iscsi_max_burst_len = fw_ddb_entry->iscsi_max_burst_len;
613 ddb_entry->iscsi_max_outsnd_r2t = fw_ddb_entry->iscsi_max_outsnd_r2t;
614 ddb_entry->iscsi_first_burst_len = fw_ddb_entry->iscsi_first_burst_len;
615 ddb_entry->iscsi_max_rcv_data_seg_len =
616 fw_ddb_entry->iscsi_max_rcv_data_seg_len;
617 ddb_entry->iscsi_max_snd_data_seg_len =
618 fw_ddb_entry->iscsi_max_snd_data_seg_len;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700619
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530620 if (ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
621 memcpy(&ddb_entry->remote_ipv6_addr,
622 fw_ddb_entry->ip_addr,
623 min(sizeof(ddb_entry->remote_ipv6_addr),
624 sizeof(fw_ddb_entry->ip_addr)));
625 memcpy(&ddb_entry->link_local_ipv6_addr,
626 fw_ddb_entry->link_local_ipv6_addr,
627 min(sizeof(ddb_entry->link_local_ipv6_addr),
628 sizeof(fw_ddb_entry->link_local_ipv6_addr)));
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530629
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530630 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x"
631 " ConnErr %08x IP %pI6 "
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530632 ":%04d \"%s\"\n",
633 __func__, fw_ddb_index,
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530634 ddb_entry->fw_ddb_device_state,
635 conn_err, fw_ddb_entry->ip_addr,
636 le16_to_cpu(fw_ddb_entry->port),
637 fw_ddb_entry->iscsi_name));
638 } else
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530639 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x"
640 " ConnErr %08x IP %pI4 "
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530641 ":%04d \"%s\"\n",
642 __func__, fw_ddb_index,
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530643 ddb_entry->fw_ddb_device_state,
644 conn_err, fw_ddb_entry->ip_addr,
645 le16_to_cpu(fw_ddb_entry->port),
646 fw_ddb_entry->iscsi_name));
Vikas Chaudhary2a49a782010-04-28 11:37:07 +0530647exit_update_ddb:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700648 if (fw_ddb_entry)
649 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
650 fw_ddb_entry, fw_ddb_entry_dma);
651
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530652exit_update_ddb_no_free:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700653 return status;
654}
655
656/**
657 * qla4xxx_alloc_ddb - allocate device database entry
658 * @ha: Pointer to host adapter structure.
659 * @fw_ddb_index: Firmware's device database index
660 *
661 * This routine allocates a ddb_entry, ititializes some values, and
662 * inserts it into the ddb list.
663 **/
Adrian Bunk47975472007-04-26 00:35:16 -0700664static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
665 uint32_t fw_ddb_index)
David Somayajuluafaf5a22006-09-19 10:28:00 -0700666{
667 struct ddb_entry *ddb_entry;
668
669 DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no,
670 __func__, fw_ddb_index));
671
672 ddb_entry = qla4xxx_alloc_sess(ha);
673 if (ddb_entry == NULL) {
674 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
675 "to add fw_ddb_index [%d]\n",
676 ha->host_no, __func__, fw_ddb_index));
677 return ddb_entry;
678 }
679
680 ddb_entry->fw_ddb_index = fw_ddb_index;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700681 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
682 atomic_set(&ddb_entry->relogin_timer, 0);
683 atomic_set(&ddb_entry->relogin_retry_count, 0);
684 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
685 list_add_tail(&ddb_entry->list, &ha->ddb_list);
686 ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
687 ha->tot_ddbs++;
688
689 return ddb_entry;
690}
691
692/**
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530693 * qla4_is_relogin_allowed - Are we allowed to login?
694 * @ha: Pointer to host adapter structure.
695 * @conn_err: Last connection error associated with the ddb
696 *
697 * This routine tests the given connection error to determine if
698 * we are allowed to login.
699 **/
700int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err)
701{
702 uint32_t err_code, login_rsp_sts_class;
703 int relogin = 1;
704
705 err_code = ((conn_err & 0x00ff0000) >> 16);
706 login_rsp_sts_class = ((conn_err & 0x0000ff00) >> 8);
707 if (err_code == 0x1c || err_code == 0x06) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530708 DEBUG2(ql4_printk(KERN_INFO, ha,
709 ": conn_err=0x%08x, send target completed"
710 " or access denied failure\n", conn_err));
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530711 relogin = 0;
712 }
713 if ((err_code == 0x08) && (login_rsp_sts_class == 0x02)) {
714 /* Login Response PDU returned an error.
715 Login Response Status in Error Code Detail
716 indicates login should not be retried.*/
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530717 DEBUG2(ql4_printk(KERN_INFO, ha,
718 ": conn_err=0x%08x, do not retry relogin\n",
719 conn_err));
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530720 relogin = 0;
721 }
722
723 return relogin;
724}
725
Karen Higgins7edd9a72011-03-21 03:34:27 -0700726static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
727{
728 unsigned long wtime;
729
730 /* Flush the 0x8014 AEN from the firmware as a result of
731 * Auto connect. We are basically doing get_firmware_ddb()
732 * to determine whether we need to log back in or not.
733 * Trying to do a set ddb before we have processed 0x8014
734 * will result in another set_ddb() for the same ddb. In other
735 * words there will be stale entries in the aen_q.
736 */
737 wtime = jiffies + (2 * HZ);
738 do {
739 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
740 if (ha->firmware_state & (BIT_2 | BIT_0))
741 return;
742
743 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
744 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
745
746 msleep(1000);
747 } while (!time_after_eq(jiffies, wtime));
748}
749
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530750/**
Karen Higgins7edd9a72011-03-21 03:34:27 -0700751 * qla4xxx_build_ddb_list - builds driver ddb list
David Somayajuluafaf5a22006-09-19 10:28:00 -0700752 * @ha: Pointer to host adapter structure.
753 *
754 * This routine searches for all valid firmware ddb entries and builds
755 * an internal ddb list. Ddbs that are considered valid are those with
756 * a device state of SESSION_ACTIVE.
Karen Higgins7edd9a72011-03-21 03:34:27 -0700757 * A relogin (set_ddb) is issued for DDBs that are not online.
David Somayajuluafaf5a22006-09-19 10:28:00 -0700758 **/
759static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
760{
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530761 int status = QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700762 uint32_t fw_ddb_index = 0;
763 uint32_t next_fw_ddb_index = 0;
764 uint32_t ddb_state;
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530765 uint32_t conn_err;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700766 struct ddb_entry *ddb_entry;
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530767 struct dev_db_entry *fw_ddb_entry = NULL;
768 dma_addr_t fw_ddb_entry_dma;
769 uint32_t ipv6_device;
David C Somayajulu92b72732007-05-23 17:55:40 -0700770 uint32_t new_tgt;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700771
Karen Higgins7edd9a72011-03-21 03:34:27 -0700772 qla4xxx_flush_AENS(ha);
773
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530774 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
775 &fw_ddb_entry_dma, GFP_KERNEL);
776 if (fw_ddb_entry == NULL) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530777 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DMA alloc failed\n",
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530778 __func__));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530779
780 goto exit_build_ddb_list_no_free;
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530781 }
782
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530783 ql4_printk(KERN_INFO, ha, "Initializing DDBs ...\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -0700784 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES;
785 fw_ddb_index = next_fw_ddb_index) {
786 /* First, let's see if a device exists here */
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530787 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
788 0, NULL, &next_fw_ddb_index,
789 &ddb_state, &conn_err,
790 NULL, NULL) ==
791 QLA_ERROR) {
David Somayajuluafaf5a22006-09-19 10:28:00 -0700792 DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
793 "fw_ddb_index %d failed", ha->host_no,
794 __func__, fw_ddb_index));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530795 goto exit_build_ddb_list;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700796 }
797
798 DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, "
799 "next_fw_ddb_index=%d.\n", ha->host_no, __func__,
800 fw_ddb_index, ddb_state, next_fw_ddb_index));
801
802 /* Issue relogin, if necessary. */
803 if (ddb_state == DDB_DS_SESSION_FAILED ||
804 ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) {
805 /* Try and login to device */
806 DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
807 ha->host_no, __func__, fw_ddb_index));
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530808 ipv6_device = le16_to_cpu(fw_ddb_entry->options) &
809 DDB_OPT_IPV6_DEVICE;
810 if (qla4_is_relogin_allowed(ha, conn_err) &&
811 ((!ipv6_device &&
812 *((uint32_t *)fw_ddb_entry->ip_addr))
813 || ipv6_device)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -0700814 qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0);
David C Somayajulu92b72732007-05-23 17:55:40 -0700815 if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index,
Vikas Chaudhary821d6e52010-04-28 11:41:21 +0530816 NULL, 0, NULL,
817 &next_fw_ddb_index,
818 &ddb_state, &conn_err,
819 NULL, NULL)
820 == QLA_ERROR) {
David C Somayajulu92b72732007-05-23 17:55:40 -0700821 DEBUG2(printk("scsi%ld: %s:"
822 "get_ddb_entry %d failed\n",
823 ha->host_no,
824 __func__, fw_ddb_index));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530825 goto exit_build_ddb_list;
David C Somayajulu92b72732007-05-23 17:55:40 -0700826 }
827 }
David Somayajuluafaf5a22006-09-19 10:28:00 -0700828 }
829
830 if (ddb_state != DDB_DS_SESSION_ACTIVE)
831 goto next_one;
832 /*
833 * if fw_ddb with session active state found,
834 * add to ddb_list
835 */
836 DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n",
837 ha->host_no, __func__, fw_ddb_index));
838
839 /* Add DDB to internal our ddb list. */
David C Somayajulu92b72732007-05-23 17:55:40 -0700840 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700841 if (ddb_entry == NULL) {
842 DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
843 "for device at fw_ddb_index %d\n",
844 ha->host_no, __func__, fw_ddb_index));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530845 goto exit_build_ddb_list;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700846 }
847 /* Fill in the device structure */
848 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
849 QLA_ERROR) {
850 ha->fw_ddb_index_map[fw_ddb_index] =
851 (struct ddb_entry *)INVALID_ENTRY;
852
David Somayajuluafaf5a22006-09-19 10:28:00 -0700853 DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed "
854 "for fw_ddb_index %d.\n",
855 ha->host_no, __func__, fw_ddb_index));
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530856 goto exit_build_ddb_list;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700857 }
858
859next_one:
860 /* We know we've reached the last device when
861 * next_fw_ddb_index is 0 */
862 if (next_fw_ddb_index == 0)
863 break;
864 }
865
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530866 status = QLA_SUCCESS;
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530867 ql4_printk(KERN_INFO, ha, "DDB list done..\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -0700868
Prasanna Mumbaibeabe7c2010-07-10 14:49:38 +0530869exit_build_ddb_list:
870 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
871 fw_ddb_entry_dma);
872
873exit_build_ddb_list_no_free:
David Somayajuluafaf5a22006-09-19 10:28:00 -0700874 return status;
875}
876
David Somayajuluafaf5a22006-09-19 10:28:00 -0700877static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
878{
879 uint16_t fw_ddb_index;
880 int status = QLA_SUCCESS;
881
882 /* free the ddb list if is not empty */
883 if (!list_empty(&ha->ddb_list))
884 qla4xxx_free_ddb_list(ha);
885
886 for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++)
887 ha->fw_ddb_index_map[fw_ddb_index] =
Karen Higgins7edd9a72011-03-21 03:34:27 -0700888 (struct ddb_entry *)INVALID_ENTRY;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700889
890 ha->tot_ddbs = 0;
891
Karen Higgins7edd9a72011-03-21 03:34:27 -0700892 /* Perform device discovery and build ddb list. */
893 status = qla4xxx_build_ddb_list(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700894
David Somayajuluafaf5a22006-09-19 10:28:00 -0700895 return status;
896}
897
898/**
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530899 * qla4xxx_reinitialize_ddb_list - update the driver ddb list
David Somayajuluafaf5a22006-09-19 10:28:00 -0700900 * @ha: pointer to host adapter structure.
901 *
902 * This routine obtains device information from the F/W database after
903 * firmware or adapter resets. The device table is preserved.
904 **/
905int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha)
906{
907 int status = QLA_SUCCESS;
908 struct ddb_entry *ddb_entry, *detemp;
909
910 /* Update the device information for all devices. */
911 list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) {
912 qla4xxx_update_ddb_entry(ha, ddb_entry,
913 ddb_entry->fw_ddb_index);
914 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
915 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
916 DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked "
917 "ONLINE\n", ha->host_no, __func__,
918 ddb_entry->fw_ddb_index));
Vikas Chaudhary36386322010-07-10 14:49:01 +0530919 iscsi_unblock_session(ddb_entry->sess);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700920 } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
921 qla4xxx_mark_device_missing(ha, ddb_entry);
922 }
923 return status;
924}
925
926/**
927 * qla4xxx_relogin_device - re-establish session
928 * @ha: Pointer to host adapter structure.
929 * @ddb_entry: Pointer to device database entry
930 *
931 * This routine does a session relogin with the specified device.
932 * The ddb entry must be assigned prior to making this call.
933 **/
934int qla4xxx_relogin_device(struct scsi_qla_host *ha,
935 struct ddb_entry * ddb_entry)
936{
937 uint16_t relogin_timer;
938
939 relogin_timer = max(ddb_entry->default_relogin_timeout,
940 (uint16_t)RELOGIN_TOV);
941 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
942
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530943 DEBUG2(printk("scsi%ld: Relogin ddb [%d]. TOV=%d\n", ha->host_no,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700944 ddb_entry->fw_ddb_index, relogin_timer));
945
946 qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0);
947
948 return QLA_SUCCESS;
949}
950
David Somayajuluafaf5a22006-09-19 10:28:00 -0700951static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
952{
953 unsigned long flags;
954 union external_hw_config_reg extHwConfig;
955
956 DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
957 __func__));
958 if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
Mike Christieb3925512010-02-10 16:51:48 -0600959 return QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700960 if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
961 ql4xxx_unlock_flash(ha);
Mike Christieb3925512010-02-10 16:51:48 -0600962 return QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700963 }
964
965 /* Get EEPRom Parameters from NVRAM and validate */
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530966 ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -0700967 if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
968 spin_lock_irqsave(&ha->hardware_lock, flags);
969 extHwConfig.Asuint32_t =
970 rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
971 spin_unlock_irqrestore(&ha->hardware_lock, flags);
972 } else {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +0530973 ql4_printk(KERN_WARNING, ha,
974 "scsi%ld: %s: EEProm checksum invalid. "
975 "Please update your EEPROM\n", ha->host_no,
976 __func__);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700977
Mike Christieb3925512010-02-10 16:51:48 -0600978 /* Attempt to set defaults */
David Somayajuluafaf5a22006-09-19 10:28:00 -0700979 if (is_qla4010(ha))
980 extHwConfig.Asuint32_t = 0x1912;
David C Somayajulud9150582006-11-15 17:38:40 -0800981 else if (is_qla4022(ha) | is_qla4032(ha))
David Somayajuluafaf5a22006-09-19 10:28:00 -0700982 extHwConfig.Asuint32_t = 0x0023;
Mike Christieb3925512010-02-10 16:51:48 -0600983 else
984 return QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700985 }
986 DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
987 ha->host_no, __func__, extHwConfig.Asuint32_t));
988
989 spin_lock_irqsave(&ha->hardware_lock, flags);
990 writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
991 readl(isp_ext_hw_conf(ha));
992 spin_unlock_irqrestore(&ha->hardware_lock, flags);
993
994 ql4xxx_unlock_nvram(ha);
995 ql4xxx_unlock_flash(ha);
996
Mike Christieb3925512010-02-10 16:51:48 -0600997 return QLA_SUCCESS;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700998}
999
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301000/**
1001 * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers.
1002 * @ha: HA context
1003 */
1004void qla4_8xxx_pci_config(struct scsi_qla_host *ha)
1005{
1006 pci_set_master(ha->pdev);
1007}
1008
1009void qla4xxx_pci_config(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001010{
David C Somayajulu92b72732007-05-23 17:55:40 -07001011 uint16_t w;
David C Somayajulu46235e62007-06-08 17:37:16 -07001012 int status;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001013
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05301014 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07001015
1016 pci_set_master(ha->pdev);
David C Somayajulu46235e62007-06-08 17:37:16 -07001017 status = pci_set_mwi(ha->pdev);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001018 /*
1019 * We want to respect framework's setting of PCI configuration space
1020 * command register and also want to make sure that all bits of
1021 * interest to us are properly set in command register.
1022 */
1023 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
David C Somayajulu92b72732007-05-23 17:55:40 -07001024 w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001025 w &= ~PCI_COMMAND_INTX_DISABLE;
1026 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
1027}
1028
1029static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
1030{
1031 int status = QLA_ERROR;
Vikas Chaudharyc301b022010-04-28 11:40:37 +05301032 unsigned long max_wait_time;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001033 unsigned long flags;
1034 uint32_t mbox_status;
1035
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05301036 ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07001037
1038 /*
1039 * Start firmware from flash ROM
1040 *
1041 * WORKAROUND: Stuff a non-constant value that the firmware can
1042 * use as a seed for a random number generator in MB7 prior to
1043 * setting BOOT_ENABLE. Fixes problem where the TCP
1044 * connections use the same TCP ports after each reboot,
1045 * causing some connections to not get re-established.
1046 */
1047 DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
1048 ha->host_no, __func__));
1049
1050 spin_lock_irqsave(&ha->hardware_lock, flags);
1051 writel(jiffies, &ha->reg->mailbox[7]);
David C Somayajulud9150582006-11-15 17:38:40 -08001052 if (is_qla4022(ha) | is_qla4032(ha))
David Somayajuluafaf5a22006-09-19 10:28:00 -07001053 writel(set_rmask(NVR_WRITE_ENABLE),
1054 &ha->reg->u1.isp4022.nvram);
1055
David C Somayajulu92b72732007-05-23 17:55:40 -07001056 writel(2, &ha->reg->mailbox[6]);
1057 readl(&ha->reg->mailbox[6]);
1058
David Somayajuluafaf5a22006-09-19 10:28:00 -07001059 writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
1060 readl(&ha->reg->ctrl_status);
1061 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1062
1063 /* Wait for firmware to come UP. */
Vikas Chaudharyc301b022010-04-28 11:40:37 +05301064 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for "
1065 "boot firmware to complete...\n",
1066 ha->host_no, __func__, FIRMWARE_UP_TOV));
1067 max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001068 do {
1069 uint32_t ctrl_status;
1070
1071 spin_lock_irqsave(&ha->hardware_lock, flags);
1072 ctrl_status = readw(&ha->reg->ctrl_status);
1073 mbox_status = readw(&ha->reg->mailbox[0]);
1074 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1075
1076 if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
1077 break;
1078 if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
1079 break;
1080
Vikas Chaudharyc301b022010-04-28 11:40:37 +05301081 DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot "
Vikas Chaudharyf581a3f2010-10-06 22:47:48 -07001082 "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n",
1083 ha->host_no, __func__, ctrl_status, max_wait_time));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001084
Vikas Chaudharyc301b022010-04-28 11:40:37 +05301085 msleep_interruptible(250);
1086 } while (!time_after_eq(jiffies, max_wait_time));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001087
1088 if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
Vikas Chaudharyc301b022010-04-28 11:40:37 +05301089 DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n",
David Somayajuluafaf5a22006-09-19 10:28:00 -07001090 ha->host_no, __func__));
1091
1092 spin_lock_irqsave(&ha->hardware_lock, flags);
1093 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
1094 &ha->reg->ctrl_status);
1095 readl(&ha->reg->ctrl_status);
1096 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1097
1098 status = QLA_SUCCESS;
1099 } else {
1100 printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
1101 "- mbox status 0x%x\n", ha->host_no, __func__,
1102 mbox_status);
1103 status = QLA_ERROR;
1104 }
1105 return status;
1106}
1107
David C Somayajulu92b72732007-05-23 17:55:40 -07001108int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001109{
David C Somayajulu92b72732007-05-23 17:55:40 -07001110#define QL4_LOCK_DRVR_WAIT 60
David C Somayajulu477ffb92007-01-22 12:26:11 -08001111#define QL4_LOCK_DRVR_SLEEP 1
David Somayajuluafaf5a22006-09-19 10:28:00 -07001112
1113 int drvr_wait = QL4_LOCK_DRVR_WAIT;
1114 while (drvr_wait) {
David C Somayajulu92b72732007-05-23 17:55:40 -07001115 if (ql4xxx_lock_drvr(a) == 0) {
David C Somayajulu477ffb92007-01-22 12:26:11 -08001116 ssleep(QL4_LOCK_DRVR_SLEEP);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001117 if (drvr_wait) {
1118 DEBUG2(printk("scsi%ld: %s: Waiting for "
David C Somayajulu92b72732007-05-23 17:55:40 -07001119 "Global Init Semaphore(%d)...\n",
1120 a->host_no,
David C Somayajulu477ffb92007-01-22 12:26:11 -08001121 __func__, drvr_wait));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001122 }
1123 drvr_wait -= QL4_LOCK_DRVR_SLEEP;
1124 } else {
1125 DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
David C Somayajulu92b72732007-05-23 17:55:40 -07001126 "acquired\n", a->host_no, __func__));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001127 return QLA_SUCCESS;
1128 }
1129 }
1130 return QLA_ERROR;
1131}
1132
1133/**
1134 * qla4xxx_start_firmware - starts qla4xxx firmware
1135 * @ha: Pointer to host adapter structure.
1136 *
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +02001137 * This routine performs the necessary steps to start the firmware for
David Somayajuluafaf5a22006-09-19 10:28:00 -07001138 * the QLA4010 adapter.
1139 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301140int qla4xxx_start_firmware(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001141{
1142 unsigned long flags = 0;
1143 uint32_t mbox_status;
1144 int status = QLA_ERROR;
1145 int soft_reset = 1;
1146 int config_chip = 0;
1147
David C Somayajulud9150582006-11-15 17:38:40 -08001148 if (is_qla4022(ha) | is_qla4032(ha))
David Somayajuluafaf5a22006-09-19 10:28:00 -07001149 ql4xxx_set_mac_number(ha);
1150
1151 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
1152 return QLA_ERROR;
1153
1154 spin_lock_irqsave(&ha->hardware_lock, flags);
1155
1156 DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
1157 __func__, readw(isp_port_ctrl(ha))));
1158 DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
1159 __func__, readw(isp_port_status(ha))));
1160
1161 /* Is Hardware already initialized? */
1162 if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
1163 DEBUG(printk("scsi%ld: %s: Hardware has already been "
1164 "initialized\n", ha->host_no, __func__));
1165
1166 /* Receive firmware boot acknowledgement */
1167 mbox_status = readw(&ha->reg->mailbox[0]);
1168
1169 DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
1170 "0x%x\n", ha->host_no, __func__, mbox_status));
1171
1172 /* Is firmware already booted? */
1173 if (mbox_status == 0) {
1174 /* F/W not running, must be config by net driver */
1175 config_chip = 1;
1176 soft_reset = 0;
1177 } else {
1178 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
1179 &ha->reg->ctrl_status);
1180 readl(&ha->reg->ctrl_status);
1181 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1182 if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
1183 DEBUG2(printk("scsi%ld: %s: Get firmware "
1184 "state -- state = 0x%x\n",
1185 ha->host_no,
1186 __func__, ha->firmware_state));
1187 /* F/W is running */
1188 if (ha->firmware_state &
1189 FW_STATE_CONFIG_WAIT) {
1190 DEBUG2(printk("scsi%ld: %s: Firmware "
1191 "in known state -- "
1192 "config and "
1193 "boot, state = 0x%x\n",
1194 ha->host_no, __func__,
1195 ha->firmware_state));
1196 config_chip = 1;
1197 soft_reset = 0;
1198 }
1199 } else {
1200 DEBUG2(printk("scsi%ld: %s: Firmware in "
1201 "unknown state -- resetting,"
1202 " state = "
1203 "0x%x\n", ha->host_no, __func__,
1204 ha->firmware_state));
1205 }
1206 spin_lock_irqsave(&ha->hardware_lock, flags);
1207 }
1208 } else {
1209 DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
1210 "started - resetting\n", ha->host_no, __func__));
1211 }
1212 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1213
1214 DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
1215 ha->host_no, __func__, soft_reset, config_chip));
1216 if (soft_reset) {
1217 DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
1218 __func__));
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301219 status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr
1220 * lock again, but ok */
David Somayajuluafaf5a22006-09-19 10:28:00 -07001221 if (status == QLA_ERROR) {
1222 DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
1223 ha->host_no, __func__));
1224 ql4xxx_unlock_drvr(ha);
1225 return QLA_ERROR;
1226 }
1227 config_chip = 1;
1228
Joe Perchesb1c11812008-02-03 17:28:22 +02001229 /* Reset clears the semaphore, so acquire again */
David Somayajuluafaf5a22006-09-19 10:28:00 -07001230 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
1231 return QLA_ERROR;
1232 }
1233
1234 if (config_chip) {
1235 if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
1236 status = qla4xxx_start_firmware_from_flash(ha);
1237 }
1238
1239 ql4xxx_unlock_drvr(ha);
1240 if (status == QLA_SUCCESS) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07001241 if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
1242 qla4xxx_get_crash_record(ha);
1243 } else {
1244 DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
1245 ha->host_no, __func__));
1246 }
1247 return status;
1248}
1249
1250
1251/**
1252 * qla4xxx_initialize_adapter - initiailizes hba
1253 * @ha: Pointer to host adapter structure.
1254 * @renew_ddb_list: Indicates what to do with the adapter's ddb list
1255 * after adapter recovery has completed.
1256 * 0=preserve ddb list, 1=destroy and rebuild ddb list
1257 *
1258 * This routine parforms all of the steps necessary to initialize the adapter.
1259 *
1260 **/
1261int qla4xxx_initialize_adapter(struct scsi_qla_host *ha,
1262 uint8_t renew_ddb_list)
1263{
1264 int status = QLA_ERROR;
1265 int8_t ip_address[IP_ADDR_LEN] = {0} ;
1266
1267 ha->eeprom_cmd_data = 0;
1268
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301269 ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
1270 ha->isp_ops->pci_config(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001271
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301272 ha->isp_ops->disable_intrs(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001273
1274 /* Initialize the Host adapter request/response queues and firmware */
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301275 if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
David C Somayajulu46235e62007-06-08 17:37:16 -07001276 goto exit_init_hba;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001277
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301278 if (qla4xxx_get_fw_version(ha) == QLA_ERROR)
1279 goto exit_init_hba;
1280
1281 if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR)
David C Somayajulu46235e62007-06-08 17:37:16 -07001282 goto exit_init_hba;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001283
1284 if (qla4xxx_init_local_data(ha) == QLA_ERROR)
David C Somayajulu46235e62007-06-08 17:37:16 -07001285 goto exit_init_hba;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001286
1287 status = qla4xxx_init_firmware(ha);
1288 if (status == QLA_ERROR)
David C Somayajulu46235e62007-06-08 17:37:16 -07001289 goto exit_init_hba;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001290
1291 /*
1292 * FW is waiting to get an IP address from DHCP server: Skip building
1293 * the ddb_list and wait for DHCP lease acquired aen to come in
1294 * followed by 0x8014 aen" to trigger the tgt discovery process.
1295 */
Vikas Chaudhary2a49a782010-04-28 11:37:07 +05301296 if (ha->firmware_state & FW_STATE_CONFIGURING_IP)
David C Somayajulu46235e62007-06-08 17:37:16 -07001297 goto exit_init_online;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001298
1299 /* Skip device discovery if ip and subnet is zero */
1300 if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 ||
1301 memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0)
David C Somayajulu46235e62007-06-08 17:37:16 -07001302 goto exit_init_online;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001303
1304 if (renew_ddb_list == PRESERVE_DDB_LIST) {
1305 /*
1306 * We want to preserve lun states (i.e. suspended, etc.)
1307 * for recovery initiated by the driver. So just update
1308 * the device states for the existing ddb_list.
1309 */
1310 qla4xxx_reinitialize_ddb_list(ha);
1311 } else if (renew_ddb_list == REBUILD_DDB_LIST) {
1312 /*
1313 * We want to build the ddb_list from scratch during
1314 * driver initialization and recovery initiated by the
1315 * INT_HBA_RESET IOCTL.
1316 */
1317 status = qla4xxx_initialize_ddb_list(ha);
1318 if (status == QLA_ERROR) {
1319 DEBUG2(printk("%s(%ld) Error occurred during build"
1320 "ddb list\n", __func__, ha->host_no));
1321 goto exit_init_hba;
1322 }
1323
1324 }
1325 if (!ha->tot_ddbs) {
1326 DEBUG2(printk("scsi%ld: Failed to initialize devices or none "
1327 "present in Firmware device database\n",
1328 ha->host_no));
1329 }
1330
David C Somayajulu46235e62007-06-08 17:37:16 -07001331exit_init_online:
David C Somayajulu92b72732007-05-23 17:55:40 -07001332 set_bit(AF_ONLINE, &ha->flags);
David C Somayajulu46235e62007-06-08 17:37:16 -07001333exit_init_hba:
Vikas Chaudhary3710c602010-10-06 22:49:08 -07001334 if (is_qla8022(ha) && (status == QLA_ERROR)) {
1335 /* Since interrupts are registered in start_firmware for
1336 * 82xx, release them here if initialize_adapter fails */
1337 qla4xxx_free_irqs(ha);
1338 }
1339
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301340 DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001341 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001342 return status;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001343}
1344
1345/**
1346 * qla4xxx_add_device_dynamically - ddb addition due to an AEN
1347 * @ha: Pointer to host adapter structure.
1348 * @fw_ddb_index: Firmware's device database index
1349 *
1350 * This routine processes adds a device as a result of an 8014h AEN.
1351 **/
1352static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha,
1353 uint32_t fw_ddb_index)
1354{
1355 struct ddb_entry * ddb_entry;
David C Somayajulu92b72732007-05-23 17:55:40 -07001356 uint32_t new_tgt;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001357
1358 /* First allocate a device structure */
David C Somayajulu92b72732007-05-23 17:55:40 -07001359 ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001360 if (ddb_entry == NULL) {
1361 DEBUG2(printk(KERN_WARNING
1362 "scsi%ld: Unable to allocate memory to add "
1363 "fw_ddb_index %d\n", ha->host_no, fw_ddb_index));
1364 return;
1365 }
1366
David C Somayajulu92b72732007-05-23 17:55:40 -07001367 if (!new_tgt && (ddb_entry->fw_ddb_index != fw_ddb_index)) {
1368 /* Target has been bound to a new fw_ddb_index */
1369 qla4xxx_free_ddb(ha, ddb_entry);
1370 ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
1371 if (ddb_entry == NULL) {
1372 DEBUG2(printk(KERN_WARNING
1373 "scsi%ld: Unable to allocate memory"
1374 " to add fw_ddb_index %d\n",
1375 ha->host_no, fw_ddb_index));
1376 return;
1377 }
1378 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07001379 if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
1380 QLA_ERROR) {
1381 ha->fw_ddb_index_map[fw_ddb_index] =
1382 (struct ddb_entry *)INVALID_ENTRY;
1383 DEBUG2(printk(KERN_WARNING
1384 "scsi%ld: failed to add new device at index "
1385 "[%d]\n Unable to retrieve fw ddb entry\n",
1386 ha->host_no, fw_ddb_index));
1387 qla4xxx_free_ddb(ha, ddb_entry);
1388 return;
1389 }
1390
1391 if (qla4xxx_add_sess(ddb_entry)) {
1392 DEBUG2(printk(KERN_WARNING
1393 "scsi%ld: failed to add new device at index "
1394 "[%d]\n Unable to add connection and session\n",
1395 ha->host_no, fw_ddb_index));
1396 qla4xxx_free_ddb(ha, ddb_entry);
1397 }
1398}
1399
1400/**
1401 * qla4xxx_process_ddb_changed - process ddb state change
1402 * @ha - Pointer to host adapter structure.
1403 * @fw_ddb_index - Firmware's device database index
1404 * @state - Device state
1405 *
1406 * This routine processes a Decive Database Changed AEN Event.
1407 **/
Vikas Chaudhary821d6e52010-04-28 11:41:21 +05301408int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
1409 uint32_t state, uint32_t conn_err)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001410{
1411 struct ddb_entry * ddb_entry;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001412
1413 /* check for out of range index */
1414 if (fw_ddb_index >= MAX_DDB_ENTRIES)
1415 return QLA_ERROR;
1416
1417 /* Get the corresponging ddb entry */
1418 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
1419 /* Device does not currently exist in our database. */
1420 if (ddb_entry == NULL) {
1421 if (state == DDB_DS_SESSION_ACTIVE)
1422 qla4xxx_add_device_dynamically(ha, fw_ddb_index);
1423 return QLA_SUCCESS;
1424 }
1425
1426 /* Device already exists in our database. */
David Somayajuluafaf5a22006-09-19 10:28:00 -07001427 DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
1428 "index [%d]\n", ha->host_no, __func__,
1429 ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001430
1431 ddb_entry->fw_ddb_device_state = state;
1432 /* Device is back online. */
Vikas Chaudharyfc7657c2011-03-21 03:34:30 -07001433 if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) &&
1434 (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) {
Mike Christie50a29ae2008-03-04 13:26:53 -06001435 atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001436 atomic_set(&ddb_entry->relogin_retry_count, 0);
1437 atomic_set(&ddb_entry->relogin_timer, 0);
1438 clear_bit(DF_RELOGIN, &ddb_entry->flags);
Mike Christieb6359302008-01-31 13:36:44 -06001439 iscsi_unblock_session(ddb_entry->sess);
Mike Christie26974782007-12-13 12:43:29 -06001440 iscsi_session_event(ddb_entry->sess,
1441 ISCSI_KEVENT_CREATE_SESSION);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001442 /*
1443 * Change the lun state to READY in case the lun TIMEOUT before
1444 * the device came back.
1445 */
Vikas Chaudharyfc7657c2011-03-21 03:34:30 -07001446 } else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) {
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05301447 /* Device went away, mark device missing */
1448 if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05301449 DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing "
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05301450 "ddb_entry 0x%p sess 0x%p conn 0x%p\n",
1451 __func__, ddb_entry,
1452 ddb_entry->sess, ddb_entry->conn));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001453 qla4xxx_mark_device_missing(ha, ddb_entry);
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05301454 }
1455
David Somayajuluafaf5a22006-09-19 10:28:00 -07001456 /*
1457 * Relogin if device state changed to a not active state.
Vikas Chaudhary821d6e52010-04-28 11:41:21 +05301458 * However, do not relogin if a RELOGIN is in process, or
1459 * we are not allowed to relogin to this DDB.
David Somayajuluafaf5a22006-09-19 10:28:00 -07001460 */
1461 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
1462 !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
Vikas Chaudhary821d6e52010-04-28 11:41:21 +05301463 qla4_is_relogin_allowed(ha, conn_err)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07001464 /*
1465 * This triggers a relogin. After the relogin_timer
1466 * expires, the relogin gets scheduled. We must wait a
1467 * minimum amount of time since receiving an 0x8014 AEN
1468 * with failed device_state or a logout response before
1469 * we can issue another relogin.
1470 */
Vikas Chaudhary821d6e52010-04-28 11:41:21 +05301471 /* Firmware pads this timeout: (time2wait +1).
David Somayajuluafaf5a22006-09-19 10:28:00 -07001472 * Driver retry to login should be longer than F/W.
1473 * Otherwise F/W will fail
1474 * set_ddb() mbx cmd with 0x4005 since it still
1475 * counting down its time2wait.
1476 */
1477 atomic_set(&ddb_entry->relogin_timer, 0);
1478 atomic_set(&ddb_entry->retry_relogin_timer,
1479 ddb_entry->default_time2wait + 4);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301480 DEBUG(printk("scsi%ld: %s: ddb[%d] "
1481 "initiate relogin after %d seconds\n",
1482 ha->host_no, __func__,
1483 ddb_entry->fw_ddb_index,
1484 ddb_entry->default_time2wait + 4));
1485 } else {
1486 DEBUG(printk("scsi%ld: %s: ddb[%d] "
1487 "relogin not initiated, state = %d, "
1488 "ddb_entry->flags = 0x%lx\n",
1489 ha->host_no, __func__,
1490 ddb_entry->fw_ddb_index,
1491 ddb_entry->fw_ddb_device_state,
1492 ddb_entry->flags));
David Somayajuluafaf5a22006-09-19 10:28:00 -07001493 }
1494 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07001495 return QLA_SUCCESS;
1496}