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