Commit | Line | Data |
---|---|---|
afaf5a2d DS |
1 | /* |
2 | * QLogic iSCSI HBA Driver | |
7d01d069 | 3 | * Copyright (c) 2003-2010 QLogic Corporation |
afaf5a2d DS |
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 | |
f4f5df23 VC |
14 | static struct ddb_entry *qla4xxx_alloc_ddb(struct scsi_qla_host *ha, |
15 | uint32_t fw_ddb_index); | |
afaf5a2d DS |
16 | |
17 | static 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 | **/ | |
f4f5df23 VC |
54 | 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 | **/ | |
75 | void 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 | ||
f4f5df23 VC |
88 | /** |
89 | * 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 | **/ | |
95 | static 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 | ||
afaf5a2d DS |
107 | /** |
108 | * 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 | **/ | |
115 | int 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 | ||
f4f5df23 VC |
131 | 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(); | |
afaf5a2d | 149 | |
f4f5df23 VC |
150 | 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); | |
afaf5a2d DS |
156 | |
157 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
158 | ||
159 | return QLA_SUCCESS; | |
160 | } | |
161 | ||
162 | /** | |
f4f5df23 | 163 | * qla4xxx_get_sys_info - validate adapter MAC address(es) |
afaf5a2d DS |
164 | * @ha: pointer to host adapter structure. |
165 | * | |
166 | **/ | |
f4f5df23 | 167 | int qla4xxx_get_sys_info(struct scsi_qla_host *ha) |
afaf5a2d DS |
168 | { |
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 | ||
f4f5df23 | 179 | goto exit_get_sys_info_no_free; |
afaf5a2d DS |
180 | } |
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 | ||
f4f5df23 | 189 | goto exit_get_sys_info; |
afaf5a2d DS |
190 | } |
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 | ||
f4f5df23 | 202 | exit_get_sys_info: |
afaf5a2d DS |
203 | dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, |
204 | sys_info_dma); | |
205 | ||
f4f5df23 | 206 | exit_get_sys_info_no_free: |
afaf5a2d DS |
207 | return status; |
208 | } | |
209 | ||
210 | /** | |
211 | * qla4xxx_init_local_data - initialize adapter specific local data | |
212 | * @ha: pointer to host adapter structure. | |
213 | * | |
214 | **/ | |
215 | static int qla4xxx_init_local_data(struct scsi_qla_host *ha) | |
216 | { | |
421f91d2 | 217 | /* Initialize aen queue */ |
afaf5a2d DS |
218 | ha->aen_q_count = MAX_AEN_ENTRIES; |
219 | ||
220 | return qla4xxx_get_firmware_status(ha); | |
221 | } | |
222 | ||
2a49a78e VC |
223 | static uint8_t |
224 | qla4xxx_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 | ||
afaf5a2d DS |
295 | static int qla4xxx_fw_ready(struct scsi_qla_host *ha) |
296 | { | |
297 | uint32_t timeout_count; | |
298 | int ready = 0; | |
299 | ||
c2660df3 | 300 | DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); |
afaf5a2d DS |
301 | 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; | |
afaf5a2d DS |
311 | } |
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 | ||
2a49a78e VC |
331 | 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 | } | |
336 | ||
337 | 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 | ||
afaf5a2d | 364 | if (ha->firmware_state == FW_STATE_READY) { |
2a49a78e VC |
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) { | |
c2660df3 VC |
372 | DEBUG2(ql4_printk(KERN_INFO, ha, |
373 | "Firmware Ready..\n")); | |
2a49a78e VC |
374 | /* The firmware is ready to process SCSI |
375 | commands. */ | |
c2660df3 | 376 | DEBUG2(ql4_printk(KERN_INFO, ha, |
2a49a78e VC |
377 | "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")); | |
c2660df3 | 382 | DEBUG2(ql4_printk(KERN_INFO, ha, |
2a49a78e VC |
383 | "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")); | |
c2660df3 | 388 | DEBUG2(ql4_printk(KERN_INFO, ha, |
2a49a78e VC |
389 | "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")); | |
c2660df3 | 394 | DEBUG2(ql4_printk(KERN_INFO, ha, |
2a49a78e VC |
395 | "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 | } | |
afaf5a2d DS |
405 | } |
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)); | |
d915058f DS |
410 | if (is_qla4032(ha) && |
411 | !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && | |
412 | (timeout_count < ADAPTER_INIT_TOV - 5)) { | |
413 | break; | |
414 | } | |
415 | ||
afaf5a2d DS |
416 | msleep(1000); |
417 | } /* end of for */ | |
418 | ||
2a49a78e | 419 | if (timeout_count <= 0) |
afaf5a2d DS |
420 | DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", |
421 | ha->host_no, __func__)); | |
422 | ||
2a49a78e VC |
423 | 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__)); | |
afaf5a2d | 427 | ready = 1; |
2a49a78e VC |
428 | } 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__)); | |
b966346c | 432 | ready = 1; |
afaf5a2d DS |
433 | } |
434 | ||
435 | return ready; | |
436 | } | |
437 | ||
438 | /** | |
439 | * qla4xxx_init_firmware - initializes the firmware. | |
440 | * @ha: pointer to host adapter structure. | |
441 | * | |
442 | **/ | |
443 | static int qla4xxx_init_firmware(struct scsi_qla_host *ha) | |
444 | { | |
445 | int status = QLA_ERROR; | |
446 | ||
2232be0d LC |
447 | if (is_aer_supported(ha) && |
448 | test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) | |
449 | return status; | |
450 | ||
9d4946f8 LC |
451 | /* 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 | ||
c2660df3 | 457 | ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); |
afaf5a2d DS |
458 | 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 | ||
afaf5a2d DS |
466 | return qla4xxx_get_firmware_status(ha); |
467 | } | |
468 | ||
469 | static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha, | |
92b72736 DS |
470 | uint32_t fw_ddb_index, |
471 | uint32_t *new_tgt) | |
afaf5a2d DS |
472 | { |
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 | ||
92b72736 | 479 | *new_tgt = 0; |
afaf5a2d DS |
480 | /* 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__)); | |
beabe7c1 | 487 | goto exit_get_ddb_entry_no_free; |
afaf5a2d DS |
488 | } |
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) == | |
beabe7c1 | 493 | QLA_ERROR) { |
afaf5a2d DS |
494 | DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " |
495 | "fw_ddb_index %d\n", ha->host_no, __func__, | |
496 | fw_ddb_index)); | |
beabe7c1 | 497 | goto exit_get_ddb_entry; |
afaf5a2d DS |
498 | } |
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) { | |
41bbdbeb MC |
504 | 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)) { | |
afaf5a2d DS |
510 | found++; |
511 | break; | |
512 | } | |
513 | } | |
514 | ||
beabe7c1 | 515 | /* if not found allocate new ddb */ |
afaf5a2d DS |
516 | 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)); | |
92b72736 | 520 | *new_tgt = 1; |
afaf5a2d DS |
521 | ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); |
522 | } | |
523 | ||
beabe7c1 | 524 | exit_get_ddb_entry: |
afaf5a2d DS |
525 | dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, |
526 | fw_ddb_entry_dma); | |
527 | ||
beabe7c1 | 528 | exit_get_ddb_entry_no_free: |
afaf5a2d DS |
529 | 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 | **/ | |
47975477 AB |
544 | static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha, |
545 | struct ddb_entry *ddb_entry, | |
546 | uint32_t fw_ddb_index) | |
afaf5a2d DS |
547 | { |
548 | struct dev_db_entry *fw_ddb_entry = NULL; | |
549 | dma_addr_t fw_ddb_entry_dma; | |
550 | int status = QLA_ERROR; | |
821d6e54 | 551 | uint32_t conn_err; |
afaf5a2d DS |
552 | |
553 | if (ddb_entry == NULL) { | |
554 | DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no, | |
555 | __func__)); | |
beabe7c1 PM |
556 | |
557 | goto exit_update_ddb_no_free; | |
afaf5a2d DS |
558 | } |
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 | ||
beabe7c1 | 568 | goto exit_update_ddb_no_free; |
afaf5a2d DS |
569 | } |
570 | ||
571 | if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, | |
572 | fw_ddb_entry_dma, NULL, NULL, | |
821d6e54 | 573 | &ddb_entry->fw_ddb_device_state, &conn_err, |
afaf5a2d DS |
574 | &ddb_entry->tcp_source_port_num, |
575 | &ddb_entry->connection_id) == | |
beabe7c1 | 576 | QLA_ERROR) { |
afaf5a2d DS |
577 | 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; | |
2a49a78e | 585 | ddb_entry->options = le16_to_cpu(fw_ddb_entry->options); |
92b72736 | 586 | ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid); |
afaf5a2d | 587 | ddb_entry->task_mgmt_timeout = |
92b72736 | 588 | le16_to_cpu(fw_ddb_entry->def_timeout); |
afaf5a2d | 589 | ddb_entry->CmdSn = 0; |
92b72736 | 590 | ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle); |
afaf5a2d | 591 | ddb_entry->default_relogin_timeout = |
92b72736 DS |
592 | le16_to_cpu(fw_ddb_entry->def_timeout); |
593 | ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); | |
afaf5a2d DS |
594 | |
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 | ||
92b72736 DS |
599 | ddb_entry->port = le16_to_cpu(fw_ddb_entry->port); |
600 | ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); | |
41bbdbeb MC |
601 | memcpy(ddb_entry->isid, fw_ddb_entry->isid, sizeof(ddb_entry->isid)); |
602 | ||
92b72736 | 603 | memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], |
afaf5a2d | 604 | min(sizeof(ddb_entry->iscsi_name), |
92b72736 | 605 | sizeof(fw_ddb_entry->iscsi_name))); |
3b2bef1f VC |
606 | 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))); | |
92b72736 DS |
609 | 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))); | |
afaf5a2d | 611 | |
2a49a78e VC |
612 | 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; | |
619 | ||
620 | 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))); | |
afaf5a2d | 629 | |
f4f5df23 VC |
630 | DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x" |
631 | " ConnErr %08x IP %pI6 " | |
821d6e54 VC |
632 | ":%04d \"%s\"\n", |
633 | __func__, fw_ddb_index, | |
821d6e54 VC |
634 | 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 | |
f4f5df23 VC |
639 | DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB[%d] State %04x" |
640 | " ConnErr %08x IP %pI4 " | |
821d6e54 VC |
641 | ":%04d \"%s\"\n", |
642 | __func__, fw_ddb_index, | |
821d6e54 VC |
643 | 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)); | |
2a49a78e | 647 | exit_update_ddb: |
afaf5a2d DS |
648 | if (fw_ddb_entry) |
649 | dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), | |
650 | fw_ddb_entry, fw_ddb_entry_dma); | |
651 | ||
beabe7c1 | 652 | exit_update_ddb_no_free: |
afaf5a2d DS |
653 | 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 | **/ | |
47975477 AB |
664 | static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha, |
665 | uint32_t fw_ddb_index) | |
afaf5a2d DS |
666 | { |
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; | |
afaf5a2d DS |
681 | 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 | ||
821d6e54 VC |
692 | /** |
693 | * 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 | **/ | |
700 | int 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) { | |
c2660df3 VC |
708 | DEBUG2(ql4_printk(KERN_INFO, ha, |
709 | ": conn_err=0x%08x, send target completed" | |
710 | " or access denied failure\n", conn_err)); | |
821d6e54 VC |
711 | 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.*/ | |
c2660df3 VC |
717 | DEBUG2(ql4_printk(KERN_INFO, ha, |
718 | ": conn_err=0x%08x, do not retry relogin\n", | |
719 | conn_err)); | |
821d6e54 VC |
720 | relogin = 0; |
721 | } | |
722 | ||
723 | return relogin; | |
724 | } | |
725 | ||
7edd9a7b KH |
726 | static 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 | ||
afaf5a2d | 750 | /** |
7edd9a7b | 751 | * qla4xxx_build_ddb_list - builds driver ddb list |
afaf5a2d DS |
752 | * @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. | |
7edd9a7b | 757 | * A relogin (set_ddb) is issued for DDBs that are not online. |
afaf5a2d DS |
758 | **/ |
759 | static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) | |
760 | { | |
beabe7c1 | 761 | int status = QLA_ERROR; |
afaf5a2d DS |
762 | uint32_t fw_ddb_index = 0; |
763 | uint32_t next_fw_ddb_index = 0; | |
764 | uint32_t ddb_state; | |
821d6e54 | 765 | uint32_t conn_err; |
afaf5a2d | 766 | struct ddb_entry *ddb_entry; |
821d6e54 VC |
767 | struct dev_db_entry *fw_ddb_entry = NULL; |
768 | dma_addr_t fw_ddb_entry_dma; | |
769 | uint32_t ipv6_device; | |
92b72736 | 770 | uint32_t new_tgt; |
afaf5a2d | 771 | |
7edd9a7b KH |
772 | qla4xxx_flush_AENS(ha); |
773 | ||
821d6e54 VC |
774 | 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) { | |
c2660df3 | 777 | DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DMA alloc failed\n", |
821d6e54 | 778 | __func__)); |
beabe7c1 PM |
779 | |
780 | goto exit_build_ddb_list_no_free; | |
821d6e54 VC |
781 | } |
782 | ||
c2660df3 | 783 | ql4_printk(KERN_INFO, ha, "Initializing DDBs ...\n"); |
afaf5a2d DS |
784 | 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 */ | |
821d6e54 VC |
787 | 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) { | |
afaf5a2d DS |
792 | DEBUG2(printk("scsi%ld: %s: get_ddb_entry, " |
793 | "fw_ddb_index %d failed", ha->host_no, | |
794 | __func__, fw_ddb_index)); | |
beabe7c1 | 795 | goto exit_build_ddb_list; |
afaf5a2d DS |
796 | } |
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)); | |
821d6e54 VC |
808 | 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)) { | |
afaf5a2d | 814 | qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0); |
92b72736 | 815 | if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, |
821d6e54 VC |
816 | NULL, 0, NULL, |
817 | &next_fw_ddb_index, | |
818 | &ddb_state, &conn_err, | |
819 | NULL, NULL) | |
820 | == QLA_ERROR) { | |
92b72736 DS |
821 | DEBUG2(printk("scsi%ld: %s:" |
822 | "get_ddb_entry %d failed\n", | |
823 | ha->host_no, | |
824 | __func__, fw_ddb_index)); | |
beabe7c1 | 825 | goto exit_build_ddb_list; |
92b72736 DS |
826 | } |
827 | } | |
afaf5a2d DS |
828 | } |
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. */ | |
92b72736 | 840 | ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt); |
afaf5a2d DS |
841 | 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)); | |
beabe7c1 | 845 | goto exit_build_ddb_list; |
afaf5a2d DS |
846 | } |
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 | ||
afaf5a2d DS |
853 | DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed " |
854 | "for fw_ddb_index %d.\n", | |
855 | ha->host_no, __func__, fw_ddb_index)); | |
beabe7c1 | 856 | goto exit_build_ddb_list; |
afaf5a2d DS |
857 | } |
858 | ||
859 | next_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 | ||
beabe7c1 | 866 | status = QLA_SUCCESS; |
c2660df3 | 867 | ql4_printk(KERN_INFO, ha, "DDB list done..\n"); |
afaf5a2d | 868 | |
beabe7c1 PM |
869 | exit_build_ddb_list: |
870 | dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, | |
871 | fw_ddb_entry_dma); | |
872 | ||
873 | exit_build_ddb_list_no_free: | |
afaf5a2d DS |
874 | return status; |
875 | } | |
876 | ||
afaf5a2d DS |
877 | static 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] = | |
7edd9a7b | 888 | (struct ddb_entry *)INVALID_ENTRY; |
afaf5a2d DS |
889 | |
890 | ha->tot_ddbs = 0; | |
891 | ||
7edd9a7b KH |
892 | /* Perform device discovery and build ddb list. */ |
893 | status = qla4xxx_build_ddb_list(ha); | |
afaf5a2d | 894 | |
afaf5a2d DS |
895 | return status; |
896 | } | |
897 | ||
898 | /** | |
f4f5df23 | 899 | * qla4xxx_reinitialize_ddb_list - update the driver ddb list |
afaf5a2d DS |
900 | * @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 | **/ | |
905 | int 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)); | |
36386325 | 919 | iscsi_unblock_session(ddb_entry->sess); |
afaf5a2d DS |
920 | } 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 | **/ | |
934 | int 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 | ||
f4f5df23 | 943 | DEBUG2(printk("scsi%ld: Relogin ddb [%d]. TOV=%d\n", ha->host_no, |
afaf5a2d DS |
944 | 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 | ||
afaf5a2d DS |
951 | static 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) | |
b3925514 | 959 | return QLA_ERROR; |
afaf5a2d DS |
960 | if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { |
961 | ql4xxx_unlock_flash(ha); | |
b3925514 | 962 | return QLA_ERROR; |
afaf5a2d DS |
963 | } |
964 | ||
965 | /* Get EEPRom Parameters from NVRAM and validate */ | |
c2660df3 | 966 | ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); |
afaf5a2d DS |
967 | 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 { | |
c2660df3 VC |
973 | ql4_printk(KERN_WARNING, ha, |
974 | "scsi%ld: %s: EEProm checksum invalid. " | |
975 | "Please update your EEPROM\n", ha->host_no, | |
976 | __func__); | |
afaf5a2d | 977 | |
b3925514 | 978 | /* Attempt to set defaults */ |
afaf5a2d DS |
979 | if (is_qla4010(ha)) |
980 | extHwConfig.Asuint32_t = 0x1912; | |
d915058f | 981 | else if (is_qla4022(ha) | is_qla4032(ha)) |
afaf5a2d | 982 | extHwConfig.Asuint32_t = 0x0023; |
b3925514 MC |
983 | else |
984 | return QLA_ERROR; | |
afaf5a2d DS |
985 | } |
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 | ||
b3925514 | 997 | return QLA_SUCCESS; |
afaf5a2d DS |
998 | } |
999 | ||
f4f5df23 VC |
1000 | /** |
1001 | * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. | |
1002 | * @ha: HA context | |
1003 | */ | |
1004 | void qla4_8xxx_pci_config(struct scsi_qla_host *ha) | |
1005 | { | |
1006 | pci_set_master(ha->pdev); | |
1007 | } | |
1008 | ||
1009 | void qla4xxx_pci_config(struct scsi_qla_host *ha) | |
afaf5a2d | 1010 | { |
92b72736 | 1011 | uint16_t w; |
46235e60 | 1012 | int status; |
afaf5a2d | 1013 | |
c2660df3 | 1014 | ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); |
afaf5a2d DS |
1015 | |
1016 | pci_set_master(ha->pdev); | |
46235e60 | 1017 | status = pci_set_mwi(ha->pdev); |
afaf5a2d DS |
1018 | /* |
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); | |
92b72736 | 1024 | w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; |
afaf5a2d DS |
1025 | w &= ~PCI_COMMAND_INTX_DISABLE; |
1026 | pci_write_config_word(ha->pdev, PCI_COMMAND, w); | |
1027 | } | |
1028 | ||
1029 | static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) | |
1030 | { | |
1031 | int status = QLA_ERROR; | |
c301b026 | 1032 | unsigned long max_wait_time; |
afaf5a2d DS |
1033 | unsigned long flags; |
1034 | uint32_t mbox_status; | |
1035 | ||
c2660df3 | 1036 | ql4_printk(KERN_INFO, ha, "Starting firmware ...\n"); |
afaf5a2d DS |
1037 | |
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]); | |
d915058f | 1052 | if (is_qla4022(ha) | is_qla4032(ha)) |
afaf5a2d DS |
1053 | writel(set_rmask(NVR_WRITE_ENABLE), |
1054 | &ha->reg->u1.isp4022.nvram); | |
1055 | ||
92b72736 DS |
1056 | writel(2, &ha->reg->mailbox[6]); |
1057 | readl(&ha->reg->mailbox[6]); | |
1058 | ||
afaf5a2d DS |
1059 | 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. */ | |
c301b026 VC |
1064 | 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); | |
afaf5a2d DS |
1068 | 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 | ||
c301b026 | 1081 | DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot " |
f581a3f7 VC |
1082 | "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n", |
1083 | ha->host_no, __func__, ctrl_status, max_wait_time)); | |
afaf5a2d | 1084 | |
c301b026 VC |
1085 | msleep_interruptible(250); |
1086 | } while (!time_after_eq(jiffies, max_wait_time)); | |
afaf5a2d DS |
1087 | |
1088 | if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { | |
c301b026 | 1089 | DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n", |
afaf5a2d DS |
1090 | 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 | ||
92b72736 | 1108 | int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) |
afaf5a2d | 1109 | { |
92b72736 | 1110 | #define QL4_LOCK_DRVR_WAIT 60 |
477ffb9d | 1111 | #define QL4_LOCK_DRVR_SLEEP 1 |
afaf5a2d DS |
1112 | |
1113 | int drvr_wait = QL4_LOCK_DRVR_WAIT; | |
1114 | while (drvr_wait) { | |
92b72736 | 1115 | if (ql4xxx_lock_drvr(a) == 0) { |
477ffb9d | 1116 | ssleep(QL4_LOCK_DRVR_SLEEP); |
afaf5a2d DS |
1117 | if (drvr_wait) { |
1118 | DEBUG2(printk("scsi%ld: %s: Waiting for " | |
92b72736 DS |
1119 | "Global Init Semaphore(%d)...\n", |
1120 | a->host_no, | |
477ffb9d | 1121 | __func__, drvr_wait)); |
afaf5a2d DS |
1122 | } |
1123 | drvr_wait -= QL4_LOCK_DRVR_SLEEP; | |
1124 | } else { | |
1125 | DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " | |
92b72736 | 1126 | "acquired\n", a->host_no, __func__)); |
afaf5a2d DS |
1127 | 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 | * | |
3a4fa0a2 | 1137 | * This routine performs the necessary steps to start the firmware for |
afaf5a2d DS |
1138 | * the QLA4010 adapter. |
1139 | **/ | |
f4f5df23 | 1140 | int qla4xxx_start_firmware(struct scsi_qla_host *ha) |
afaf5a2d DS |
1141 | { |
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 | ||
d915058f | 1148 | if (is_qla4022(ha) | is_qla4032(ha)) |
afaf5a2d DS |
1149 | 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__)); | |
f4f5df23 VC |
1219 | status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr |
1220 | * lock again, but ok */ | |
afaf5a2d DS |
1221 | 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 | ||
b1c11812 | 1229 | /* Reset clears the semaphore, so acquire again */ |
afaf5a2d DS |
1230 | 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) { | |
afaf5a2d DS |
1241 | 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 | **/ | |
1261 | int 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 | ||
f4f5df23 VC |
1269 | ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); |
1270 | ha->isp_ops->pci_config(ha); | |
afaf5a2d | 1271 | |
f4f5df23 | 1272 | ha->isp_ops->disable_intrs(ha); |
afaf5a2d DS |
1273 | |
1274 | /* Initialize the Host adapter request/response queues and firmware */ | |
f4f5df23 VC |
1275 | if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) |
1276 | goto exit_init_hba; | |
1277 | ||
1278 | if (qla4xxx_get_fw_version(ha) == QLA_ERROR) | |
46235e60 | 1279 | goto exit_init_hba; |
afaf5a2d | 1280 | |
f4f5df23 | 1281 | if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR) |
46235e60 | 1282 | goto exit_init_hba; |
afaf5a2d DS |
1283 | |
1284 | if (qla4xxx_init_local_data(ha) == QLA_ERROR) | |
46235e60 | 1285 | goto exit_init_hba; |
afaf5a2d DS |
1286 | |
1287 | status = qla4xxx_init_firmware(ha); | |
1288 | if (status == QLA_ERROR) | |
46235e60 | 1289 | goto exit_init_hba; |
afaf5a2d DS |
1290 | |
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 | */ | |
2a49a78e | 1296 | if (ha->firmware_state & FW_STATE_CONFIGURING_IP) |
46235e60 | 1297 | goto exit_init_online; |
afaf5a2d DS |
1298 | |
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) | |
46235e60 | 1302 | goto exit_init_online; |
afaf5a2d DS |
1303 | |
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 | ||
46235e60 | 1331 | exit_init_online: |
92b72736 | 1332 | set_bit(AF_ONLINE, &ha->flags); |
46235e60 | 1333 | exit_init_hba: |
3710c60c VC |
1334 | 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 | ||
f4f5df23 | 1340 | DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, |
25985edc | 1341 | status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); |
afaf5a2d | 1342 | return status; |
afaf5a2d DS |
1343 | } |
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 | **/ | |
1352 | static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha, | |
1353 | uint32_t fw_ddb_index) | |
1354 | { | |
1355 | struct ddb_entry * ddb_entry; | |
92b72736 | 1356 | uint32_t new_tgt; |
afaf5a2d DS |
1357 | |
1358 | /* First allocate a device structure */ | |
92b72736 | 1359 | ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt); |
afaf5a2d DS |
1360 | 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 | ||
92b72736 DS |
1367 | 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 | } | |
afaf5a2d DS |
1379 | 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 | **/ | |
821d6e54 VC |
1408 | int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, |
1409 | uint32_t state, uint32_t conn_err) | |
afaf5a2d DS |
1410 | { |
1411 | struct ddb_entry * ddb_entry; | |
afaf5a2d DS |
1412 | |
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. */ | |
afaf5a2d DS |
1427 | 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)); | |
afaf5a2d DS |
1430 | |
1431 | ddb_entry->fw_ddb_device_state = state; | |
1432 | /* Device is back online. */ | |
fc7657c9 VC |
1433 | if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && |
1434 | (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { | |
50a29aec | 1435 | atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); |
afaf5a2d DS |
1436 | atomic_set(&ddb_entry->relogin_retry_count, 0); |
1437 | atomic_set(&ddb_entry->relogin_timer, 0); | |
1438 | clear_bit(DF_RELOGIN, &ddb_entry->flags); | |
b635930d | 1439 | iscsi_unblock_session(ddb_entry->sess); |
26974789 MC |
1440 | iscsi_session_event(ddb_entry->sess, |
1441 | ISCSI_KEVENT_CREATE_SESSION); | |
afaf5a2d DS |
1442 | /* |
1443 | * Change the lun state to READY in case the lun TIMEOUT before | |
1444 | * the device came back. | |
1445 | */ | |
fc7657c9 | 1446 | } else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) { |
065aa1b4 VC |
1447 | /* Device went away, mark device missing */ |
1448 | if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) { | |
c2660df3 | 1449 | DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing " |
065aa1b4 VC |
1450 | "ddb_entry 0x%p sess 0x%p conn 0x%p\n", |
1451 | __func__, ddb_entry, | |
1452 | ddb_entry->sess, ddb_entry->conn)); | |
afaf5a2d | 1453 | qla4xxx_mark_device_missing(ha, ddb_entry); |
065aa1b4 VC |
1454 | } |
1455 | ||
afaf5a2d DS |
1456 | /* |
1457 | * Relogin if device state changed to a not active state. | |
821d6e54 VC |
1458 | * However, do not relogin if a RELOGIN is in process, or |
1459 | * we are not allowed to relogin to this DDB. | |
afaf5a2d DS |
1460 | */ |
1461 | if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && | |
1462 | !test_bit(DF_RELOGIN, &ddb_entry->flags) && | |
821d6e54 | 1463 | qla4_is_relogin_allowed(ha, conn_err)) { |
afaf5a2d DS |
1464 | /* |
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 | */ | |
821d6e54 | 1471 | /* Firmware pads this timeout: (time2wait +1). |
afaf5a2d DS |
1472 | * 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); | |
f4f5df23 VC |
1480 | 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)); | |
afaf5a2d DS |
1493 | } |
1494 | } | |
afaf5a2d DS |
1495 | return QLA_SUCCESS; |
1496 | } |