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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" | |
9 | ||
10 | /* | |
11 | * QLogic ISP4xxx Hardware Support Function Prototypes. | |
12 | */ | |
13 | ||
14 | static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) | |
15 | { | |
16 | uint32_t value; | |
17 | uint8_t func_number; | |
18 | unsigned long flags; | |
19 | ||
20 | /* Get the function number */ | |
21 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
22 | value = readw(&ha->reg->ctrl_status); | |
23 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
24 | ||
25 | func_number = (uint8_t) ((value >> 4) & 0x30); | |
26 | switch (value & ISP_CONTROL_FN_MASK) { | |
27 | case ISP_CONTROL_FN0_SCSI: | |
28 | ha->mac_index = 1; | |
29 | break; | |
30 | case ISP_CONTROL_FN1_SCSI: | |
31 | ha->mac_index = 3; | |
32 | break; | |
33 | default: | |
34 | DEBUG2(printk("scsi%ld: %s: Invalid function number, " | |
35 | "ispControlStatus = 0x%x\n", ha->host_no, | |
36 | __func__, value)); | |
37 | break; | |
38 | } | |
39 | DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, | |
40 | ha->mac_index)); | |
41 | } | |
42 | ||
43 | /** | |
44 | * qla4xxx_free_ddb - deallocate ddb | |
45 | * @ha: pointer to host adapter structure. | |
46 | * @ddb_entry: pointer to device database entry | |
47 | * | |
48 | * This routine deallocates and unlinks the specified ddb_entry from the | |
49 | * adapter's | |
50 | **/ | |
51 | void qla4xxx_free_ddb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) | |
52 | { | |
53 | /* Remove device entry from list */ | |
54 | list_del_init(&ddb_entry->list); | |
55 | ||
56 | /* Remove device pointer from index mapping arrays */ | |
57 | ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = | |
58 | (struct ddb_entry *) INVALID_ENTRY; | |
59 | ha->tot_ddbs--; | |
60 | ||
61 | /* Free memory and scsi-ml struct for device entry */ | |
62 | qla4xxx_destroy_sess(ddb_entry); | |
63 | } | |
64 | ||
65 | /** | |
66 | * qla4xxx_free_ddb_list - deallocate all ddbs | |
67 | * @ha: pointer to host adapter structure. | |
68 | * | |
69 | * This routine deallocates and removes all devices on the sppecified adapter. | |
70 | **/ | |
71 | void qla4xxx_free_ddb_list(struct scsi_qla_host *ha) | |
72 | { | |
73 | struct list_head *ptr; | |
74 | struct ddb_entry *ddb_entry; | |
75 | ||
76 | while (!list_empty(&ha->ddb_list)) { | |
77 | ptr = ha->ddb_list.next; | |
78 | /* Free memory for device entry and remove */ | |
79 | ddb_entry = list_entry(ptr, struct ddb_entry, list); | |
80 | qla4xxx_free_ddb(ha, ddb_entry); | |
81 | } | |
82 | } | |
83 | ||
84 | /** | |
85 | * qla4xxx_init_rings - initialize hw queues | |
86 | * @ha: pointer to host adapter structure. | |
87 | * | |
88 | * This routine initializes the internal queues for the specified adapter. | |
89 | * The QLA4010 requires us to restart the queues at index 0. | |
90 | * The QLA4000 doesn't care, so just default to QLA4010's requirement. | |
91 | **/ | |
92 | int qla4xxx_init_rings(struct scsi_qla_host *ha) | |
93 | { | |
94 | unsigned long flags = 0; | |
95 | ||
96 | /* Initialize request queue. */ | |
97 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
98 | ha->request_out = 0; | |
99 | ha->request_in = 0; | |
100 | ha->request_ptr = &ha->request_ring[ha->request_in]; | |
101 | ha->req_q_count = REQUEST_QUEUE_DEPTH; | |
102 | ||
103 | /* Initialize response queue. */ | |
104 | ha->response_in = 0; | |
105 | ha->response_out = 0; | |
106 | ha->response_ptr = &ha->response_ring[ha->response_out]; | |
107 | ||
108 | /* | |
109 | * Initialize DMA Shadow registers. The firmware is really supposed to | |
110 | * take care of this, but on some uniprocessor systems, the shadow | |
111 | * registers aren't cleared-- causing the interrupt_handler to think | |
112 | * there are responses to be processed when there aren't. | |
113 | */ | |
114 | ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0); | |
115 | ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0); | |
116 | wmb(); | |
117 | ||
118 | writel(0, &ha->reg->req_q_in); | |
119 | writel(0, &ha->reg->rsp_q_out); | |
120 | readl(&ha->reg->rsp_q_out); | |
121 | ||
122 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
123 | ||
124 | return QLA_SUCCESS; | |
125 | } | |
126 | ||
127 | /** | |
128 | * qla4xxx_validate_mac_address - validate adapter MAC address(es) | |
129 | * @ha: pointer to host adapter structure. | |
130 | * | |
131 | **/ | |
132 | static int qla4xxx_validate_mac_address(struct scsi_qla_host *ha) | |
133 | { | |
134 | struct flash_sys_info *sys_info; | |
135 | dma_addr_t sys_info_dma; | |
136 | int status = QLA_ERROR; | |
137 | ||
138 | sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), | |
139 | &sys_info_dma, GFP_KERNEL); | |
140 | if (sys_info == NULL) { | |
141 | DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", | |
142 | ha->host_no, __func__)); | |
143 | ||
144 | goto exit_validate_mac_no_free; | |
145 | } | |
146 | memset(sys_info, 0, sizeof(*sys_info)); | |
147 | ||
148 | /* Get flash sys info */ | |
149 | if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, | |
150 | sizeof(*sys_info)) != QLA_SUCCESS) { | |
151 | DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " | |
152 | "failed\n", ha->host_no, __func__)); | |
153 | ||
154 | goto exit_validate_mac; | |
155 | } | |
156 | ||
157 | /* Save M.A.C. address & serial_number */ | |
158 | memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], | |
159 | min(sizeof(ha->my_mac), | |
160 | sizeof(sys_info->physAddr[0].address))); | |
161 | memcpy(ha->serial_number, &sys_info->acSerialNumber, | |
162 | min(sizeof(ha->serial_number), | |
163 | sizeof(sys_info->acSerialNumber))); | |
164 | ||
165 | status = QLA_SUCCESS; | |
166 | ||
167 | exit_validate_mac: | |
168 | dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, | |
169 | sys_info_dma); | |
170 | ||
171 | exit_validate_mac_no_free: | |
172 | return status; | |
173 | } | |
174 | ||
175 | /** | |
176 | * qla4xxx_init_local_data - initialize adapter specific local data | |
177 | * @ha: pointer to host adapter structure. | |
178 | * | |
179 | **/ | |
180 | static int qla4xxx_init_local_data(struct scsi_qla_host *ha) | |
181 | { | |
182 | /* Initilize aen queue */ | |
183 | ha->aen_q_count = MAX_AEN_ENTRIES; | |
184 | ||
185 | return qla4xxx_get_firmware_status(ha); | |
186 | } | |
187 | ||
188 | static int qla4xxx_fw_ready(struct scsi_qla_host *ha) | |
189 | { | |
190 | uint32_t timeout_count; | |
191 | int ready = 0; | |
192 | ||
193 | DEBUG2(dev_info(&ha->pdev->dev, "Waiting for Firmware Ready..\n")); | |
194 | for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; | |
195 | timeout_count--) { | |
196 | if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) | |
197 | qla4xxx_get_dhcp_ip_address(ha); | |
198 | ||
199 | /* Get firmware state. */ | |
200 | if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { | |
201 | DEBUG2(printk("scsi%ld: %s: unable to get firmware " | |
202 | "state\n", ha->host_no, __func__)); | |
203 | break; | |
204 | ||
205 | } | |
206 | ||
207 | if (ha->firmware_state & FW_STATE_ERROR) { | |
208 | DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" | |
209 | " occurred\n", ha->host_no, __func__)); | |
210 | break; | |
211 | ||
212 | } | |
213 | if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { | |
214 | /* | |
215 | * The firmware has not yet been issued an Initialize | |
216 | * Firmware command, so issue it now. | |
217 | */ | |
218 | if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) | |
219 | break; | |
220 | ||
221 | /* Go back and test for ready state - no wait. */ | |
222 | continue; | |
223 | } | |
224 | ||
225 | if (ha->firmware_state == FW_STATE_READY) { | |
226 | DEBUG2(dev_info(&ha->pdev->dev, "Firmware Ready..\n")); | |
227 | /* The firmware is ready to process SCSI commands. */ | |
228 | DEBUG2(dev_info(&ha->pdev->dev, | |
229 | "scsi%ld: %s: MEDIA TYPE - %s\n", | |
230 | ha->host_no, | |
231 | __func__, (ha->addl_fw_state & | |
232 | FW_ADDSTATE_OPTICAL_MEDIA) | |
233 | != 0 ? "OPTICAL" : "COPPER")); | |
234 | DEBUG2(dev_info(&ha->pdev->dev, | |
235 | "scsi%ld: %s: DHCP STATE Enabled " | |
236 | "%s\n", | |
237 | ha->host_no, __func__, | |
238 | (ha->addl_fw_state & | |
239 | FW_ADDSTATE_DHCP_ENABLED) != 0 ? | |
240 | "YES" : "NO")); | |
241 | DEBUG2(dev_info(&ha->pdev->dev, | |
242 | "scsi%ld: %s: LINK %s\n", | |
243 | ha->host_no, __func__, | |
244 | (ha->addl_fw_state & | |
245 | FW_ADDSTATE_LINK_UP) != 0 ? | |
246 | "UP" : "DOWN")); | |
247 | DEBUG2(dev_info(&ha->pdev->dev, | |
248 | "scsi%ld: %s: iSNS Service " | |
249 | "Started %s\n", | |
250 | ha->host_no, __func__, | |
251 | (ha->addl_fw_state & | |
252 | FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? | |
253 | "YES" : "NO")); | |
254 | ||
255 | ready = 1; | |
256 | break; | |
257 | } | |
258 | DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " | |
259 | "seconds expired= %d\n", ha->host_no, __func__, | |
260 | ha->firmware_state, ha->addl_fw_state, | |
261 | timeout_count)); | |
262 | msleep(1000); | |
263 | } /* end of for */ | |
264 | ||
265 | if (timeout_count <= 0) | |
266 | DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", | |
267 | ha->host_no, __func__)); | |
268 | ||
269 | if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS) { | |
270 | DEBUG2(printk("scsi%ld: %s: FW is reporting its waiting to" | |
271 | " grab an IP address from DHCP server\n", | |
272 | ha->host_no, __func__)); | |
273 | ready = 1; | |
274 | } | |
275 | ||
276 | return ready; | |
277 | } | |
278 | ||
279 | /** | |
280 | * qla4xxx_init_firmware - initializes the firmware. | |
281 | * @ha: pointer to host adapter structure. | |
282 | * | |
283 | **/ | |
284 | static int qla4xxx_init_firmware(struct scsi_qla_host *ha) | |
285 | { | |
286 | int status = QLA_ERROR; | |
287 | ||
288 | dev_info(&ha->pdev->dev, "Initializing firmware..\n"); | |
289 | if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { | |
290 | DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " | |
291 | "control block\n", ha->host_no, __func__)); | |
292 | return status; | |
293 | } | |
294 | if (!qla4xxx_fw_ready(ha)) | |
295 | return status; | |
296 | ||
297 | set_bit(AF_ONLINE, &ha->flags); | |
298 | return qla4xxx_get_firmware_status(ha); | |
299 | } | |
300 | ||
301 | static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha, | |
302 | uint32_t fw_ddb_index) | |
303 | { | |
304 | struct dev_db_entry *fw_ddb_entry = NULL; | |
305 | dma_addr_t fw_ddb_entry_dma; | |
306 | struct ddb_entry *ddb_entry = NULL; | |
307 | int found = 0; | |
308 | uint32_t device_state; | |
309 | ||
310 | /* Make sure the dma buffer is valid */ | |
311 | fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, | |
312 | sizeof(*fw_ddb_entry), | |
313 | &fw_ddb_entry_dma, GFP_KERNEL); | |
314 | if (fw_ddb_entry == NULL) { | |
315 | DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", | |
316 | ha->host_no, __func__)); | |
317 | return NULL; | |
318 | } | |
319 | ||
320 | if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, | |
321 | fw_ddb_entry_dma, NULL, NULL, | |
322 | &device_state, NULL, NULL, NULL) == | |
323 | QLA_ERROR) { | |
324 | DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " | |
325 | "fw_ddb_index %d\n", ha->host_no, __func__, | |
326 | fw_ddb_index)); | |
327 | return NULL; | |
328 | } | |
329 | ||
330 | /* Allocate DDB if not already allocated. */ | |
331 | DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no, | |
332 | __func__, fw_ddb_index)); | |
333 | list_for_each_entry(ddb_entry, &ha->ddb_list, list) { | |
334 | if (memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsiName, | |
335 | ISCSI_NAME_SIZE) == 0) { | |
336 | found++; | |
337 | break; | |
338 | } | |
339 | } | |
340 | ||
341 | if (!found) { | |
342 | DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating " | |
343 | "new ddb\n", ha->host_no, __func__, | |
344 | fw_ddb_index)); | |
345 | ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); | |
346 | } | |
347 | ||
348 | /* if not found allocate new ddb */ | |
349 | dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, | |
350 | fw_ddb_entry_dma); | |
351 | ||
352 | return ddb_entry; | |
353 | } | |
354 | ||
355 | /** | |
356 | * qla4xxx_update_ddb_entry - update driver's internal ddb | |
357 | * @ha: pointer to host adapter structure. | |
358 | * @ddb_entry: pointer to device database structure to be filled | |
359 | * @fw_ddb_index: index of the ddb entry in fw ddb table | |
360 | * | |
361 | * This routine updates the driver's internal device database entry | |
362 | * with information retrieved from the firmware's device database | |
363 | * entry for the specified device. The ddb_entry->fw_ddb_index field | |
364 | * must be initialized prior to calling this routine | |
365 | * | |
366 | **/ | |
367 | int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha, | |
368 | struct ddb_entry *ddb_entry, | |
369 | uint32_t fw_ddb_index) | |
370 | { | |
371 | struct dev_db_entry *fw_ddb_entry = NULL; | |
372 | dma_addr_t fw_ddb_entry_dma; | |
373 | int status = QLA_ERROR; | |
374 | ||
375 | if (ddb_entry == NULL) { | |
376 | DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no, | |
377 | __func__)); | |
378 | goto exit_update_ddb; | |
379 | } | |
380 | ||
381 | /* Make sure the dma buffer is valid */ | |
382 | fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, | |
383 | sizeof(*fw_ddb_entry), | |
384 | &fw_ddb_entry_dma, GFP_KERNEL); | |
385 | if (fw_ddb_entry == NULL) { | |
386 | DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", | |
387 | ha->host_no, __func__)); | |
388 | ||
389 | goto exit_update_ddb; | |
390 | } | |
391 | ||
392 | if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, | |
393 | fw_ddb_entry_dma, NULL, NULL, | |
394 | &ddb_entry->fw_ddb_device_state, NULL, | |
395 | &ddb_entry->tcp_source_port_num, | |
396 | &ddb_entry->connection_id) == | |
397 | QLA_ERROR) { | |
398 | DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " | |
399 | "fw_ddb_index %d\n", ha->host_no, __func__, | |
400 | fw_ddb_index)); | |
401 | ||
402 | goto exit_update_ddb; | |
403 | } | |
404 | ||
405 | status = QLA_SUCCESS; | |
406 | ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->TSID); | |
407 | ddb_entry->task_mgmt_timeout = | |
408 | le16_to_cpu(fw_ddb_entry->taskMngmntTimeout); | |
409 | ddb_entry->CmdSn = 0; | |
410 | ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exeThrottle); | |
411 | ddb_entry->default_relogin_timeout = | |
412 | le16_to_cpu(fw_ddb_entry->taskMngmntTimeout); | |
413 | ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->minTime2Wait); | |
414 | ||
415 | /* Update index in case it changed */ | |
416 | ddb_entry->fw_ddb_index = fw_ddb_index; | |
417 | ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; | |
418 | ||
419 | ddb_entry->port = le16_to_cpu(fw_ddb_entry->portNumber); | |
420 | ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->TargetPortalGroup); | |
421 | memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsiName[0], | |
422 | min(sizeof(ddb_entry->iscsi_name), | |
423 | sizeof(fw_ddb_entry->iscsiName))); | |
424 | memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ipAddr[0], | |
425 | min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ipAddr))); | |
426 | ||
427 | DEBUG2(printk("scsi%ld: %s: ddb[%d] - State= %x status= %d.\n", | |
428 | ha->host_no, __func__, fw_ddb_index, | |
429 | ddb_entry->fw_ddb_device_state, status)); | |
430 | ||
431 | exit_update_ddb: | |
432 | if (fw_ddb_entry) | |
433 | dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), | |
434 | fw_ddb_entry, fw_ddb_entry_dma); | |
435 | ||
436 | return status; | |
437 | } | |
438 | ||
439 | /** | |
440 | * qla4xxx_alloc_ddb - allocate device database entry | |
441 | * @ha: Pointer to host adapter structure. | |
442 | * @fw_ddb_index: Firmware's device database index | |
443 | * | |
444 | * This routine allocates a ddb_entry, ititializes some values, and | |
445 | * inserts it into the ddb list. | |
446 | **/ | |
447 | struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha, | |
448 | uint32_t fw_ddb_index) | |
449 | { | |
450 | struct ddb_entry *ddb_entry; | |
451 | ||
452 | DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no, | |
453 | __func__, fw_ddb_index)); | |
454 | ||
455 | ddb_entry = qla4xxx_alloc_sess(ha); | |
456 | if (ddb_entry == NULL) { | |
457 | DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " | |
458 | "to add fw_ddb_index [%d]\n", | |
459 | ha->host_no, __func__, fw_ddb_index)); | |
460 | return ddb_entry; | |
461 | } | |
462 | ||
463 | ddb_entry->fw_ddb_index = fw_ddb_index; | |
464 | atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count); | |
465 | atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); | |
466 | atomic_set(&ddb_entry->relogin_timer, 0); | |
467 | atomic_set(&ddb_entry->relogin_retry_count, 0); | |
468 | atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); | |
469 | list_add_tail(&ddb_entry->list, &ha->ddb_list); | |
470 | ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; | |
471 | ha->tot_ddbs++; | |
472 | ||
473 | return ddb_entry; | |
474 | } | |
475 | ||
476 | /** | |
477 | * qla4xxx_configure_ddbs - builds driver ddb list | |
478 | * @ha: Pointer to host adapter structure. | |
479 | * | |
480 | * This routine searches for all valid firmware ddb entries and builds | |
481 | * an internal ddb list. Ddbs that are considered valid are those with | |
482 | * a device state of SESSION_ACTIVE. | |
483 | **/ | |
484 | static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) | |
485 | { | |
486 | int status = QLA_SUCCESS; | |
487 | uint32_t fw_ddb_index = 0; | |
488 | uint32_t next_fw_ddb_index = 0; | |
489 | uint32_t ddb_state; | |
490 | uint32_t conn_err, err_code; | |
491 | struct ddb_entry *ddb_entry; | |
492 | ||
493 | dev_info(&ha->pdev->dev, "Initializing DDBs ...\n"); | |
494 | for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; | |
495 | fw_ddb_index = next_fw_ddb_index) { | |
496 | /* First, let's see if a device exists here */ | |
497 | if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, | |
498 | &next_fw_ddb_index, &ddb_state, | |
499 | &conn_err, NULL, NULL) == | |
500 | QLA_ERROR) { | |
501 | DEBUG2(printk("scsi%ld: %s: get_ddb_entry, " | |
502 | "fw_ddb_index %d failed", ha->host_no, | |
503 | __func__, fw_ddb_index)); | |
504 | return QLA_ERROR; | |
505 | } | |
506 | ||
507 | DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, " | |
508 | "next_fw_ddb_index=%d.\n", ha->host_no, __func__, | |
509 | fw_ddb_index, ddb_state, next_fw_ddb_index)); | |
510 | ||
511 | /* Issue relogin, if necessary. */ | |
512 | if (ddb_state == DDB_DS_SESSION_FAILED || | |
513 | ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) { | |
514 | /* Try and login to device */ | |
515 | DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n", | |
516 | ha->host_no, __func__, fw_ddb_index)); | |
517 | err_code = ((conn_err & 0x00ff0000) >> 16); | |
518 | if (err_code == 0x1c || err_code == 0x06) { | |
519 | DEBUG2(printk("scsi%ld: %s send target " | |
520 | "completed " | |
521 | "or access denied failure\n", | |
522 | ha->host_no, __func__)); | |
523 | } else | |
524 | qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0); | |
525 | } | |
526 | ||
527 | if (ddb_state != DDB_DS_SESSION_ACTIVE) | |
528 | goto next_one; | |
529 | /* | |
530 | * if fw_ddb with session active state found, | |
531 | * add to ddb_list | |
532 | */ | |
533 | DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n", | |
534 | ha->host_no, __func__, fw_ddb_index)); | |
535 | ||
536 | /* Add DDB to internal our ddb list. */ | |
537 | ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index); | |
538 | if (ddb_entry == NULL) { | |
539 | DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " | |
540 | "for device at fw_ddb_index %d\n", | |
541 | ha->host_no, __func__, fw_ddb_index)); | |
542 | return QLA_ERROR; | |
543 | } | |
544 | /* Fill in the device structure */ | |
545 | if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == | |
546 | QLA_ERROR) { | |
547 | ha->fw_ddb_index_map[fw_ddb_index] = | |
548 | (struct ddb_entry *)INVALID_ENTRY; | |
549 | ||
550 | ||
551 | DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed " | |
552 | "for fw_ddb_index %d.\n", | |
553 | ha->host_no, __func__, fw_ddb_index)); | |
554 | return QLA_ERROR; | |
555 | } | |
556 | ||
557 | next_one: | |
558 | /* We know we've reached the last device when | |
559 | * next_fw_ddb_index is 0 */ | |
560 | if (next_fw_ddb_index == 0) | |
561 | break; | |
562 | } | |
563 | ||
564 | dev_info(&ha->pdev->dev, "DDB list done..\n"); | |
565 | ||
566 | return status; | |
567 | } | |
568 | ||
569 | struct qla4_relog_scan { | |
570 | int halt_wait; | |
571 | uint32_t conn_err; | |
572 | uint32_t err_code; | |
573 | uint32_t fw_ddb_index; | |
574 | uint32_t next_fw_ddb_index; | |
575 | uint32_t fw_ddb_device_state; | |
576 | }; | |
577 | ||
578 | static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs) | |
579 | { | |
580 | struct ddb_entry *ddb_entry; | |
581 | ||
582 | /* | |
583 | * Don't want to do a relogin if connection | |
584 | * error is 0x1c. | |
585 | */ | |
586 | rs->err_code = ((rs->conn_err & 0x00ff0000) >> 16); | |
587 | if (rs->err_code == 0x1c || rs->err_code == 0x06) { | |
588 | DEBUG2(printk( | |
589 | "scsi%ld: %s send target" | |
590 | " completed or " | |
591 | "access denied failure\n", | |
592 | ha->host_no, __func__)); | |
593 | } else { | |
594 | /* We either have a device that is in | |
595 | * the process of relogging in or a | |
596 | * device that is waiting to be | |
597 | * relogged in */ | |
598 | rs->halt_wait = 0; | |
599 | ||
600 | ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, | |
601 | rs->fw_ddb_index); | |
602 | if (ddb_entry == NULL) | |
603 | return QLA_ERROR; | |
604 | ||
605 | if (ddb_entry->dev_scan_wait_to_start_relogin != 0 | |
606 | && time_after_eq(jiffies, | |
607 | ddb_entry-> | |
608 | dev_scan_wait_to_start_relogin)) | |
609 | { | |
610 | ddb_entry->dev_scan_wait_to_start_relogin = 0; | |
611 | qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0); | |
612 | } | |
613 | } | |
614 | return QLA_SUCCESS; | |
615 | } | |
616 | ||
617 | static int qla4_scan_for_relogin(struct scsi_qla_host *ha, | |
618 | struct qla4_relog_scan *rs) | |
619 | { | |
620 | int error; | |
621 | ||
622 | /* scan for relogins | |
623 | * ----------------- */ | |
624 | for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES; | |
625 | rs->fw_ddb_index = rs->next_fw_ddb_index) { | |
626 | if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0, | |
627 | NULL, &rs->next_fw_ddb_index, | |
628 | &rs->fw_ddb_device_state, | |
629 | &rs->conn_err, NULL, NULL) | |
630 | == QLA_ERROR) | |
631 | return QLA_ERROR; | |
632 | ||
633 | if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS) | |
634 | rs->halt_wait = 0; | |
635 | ||
636 | if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED || | |
637 | rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) { | |
638 | error = qla4_test_rdy(ha, rs); | |
639 | if (error) | |
640 | return error; | |
641 | } | |
642 | ||
643 | /* We know we've reached the last device when | |
644 | * next_fw_ddb_index is 0 */ | |
645 | if (rs->next_fw_ddb_index == 0) | |
646 | break; | |
647 | } | |
648 | return QLA_SUCCESS; | |
649 | } | |
650 | ||
651 | /** | |
652 | * qla4xxx_devices_ready - wait for target devices to be logged in | |
653 | * @ha: pointer to adapter structure | |
654 | * | |
655 | * This routine waits up to ql4xdiscoverywait seconds | |
656 | * F/W database during driver load time. | |
657 | **/ | |
658 | static int qla4xxx_devices_ready(struct scsi_qla_host *ha) | |
659 | { | |
660 | int error; | |
661 | unsigned long discovery_wtime; | |
662 | struct qla4_relog_scan rs; | |
663 | ||
664 | discovery_wtime = jiffies + (ql4xdiscoverywait * HZ); | |
665 | ||
666 | DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait)); | |
667 | do { | |
668 | /* poll for AEN. */ | |
669 | qla4xxx_get_firmware_state(ha); | |
670 | if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) { | |
671 | /* Set time-between-relogin timer */ | |
672 | qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS); | |
673 | } | |
674 | ||
675 | /* if no relogins active or needed, halt discvery wait */ | |
676 | rs.halt_wait = 1; | |
677 | ||
678 | error = qla4_scan_for_relogin(ha, &rs); | |
679 | ||
680 | if (rs.halt_wait) { | |
681 | DEBUG2(printk("scsi%ld: %s: Delay halted. Devices " | |
682 | "Ready.\n", ha->host_no, __func__)); | |
683 | return QLA_SUCCESS; | |
684 | } | |
685 | ||
686 | msleep(2000); | |
687 | } while (!time_after_eq(jiffies, discovery_wtime)); | |
688 | ||
689 | DEBUG3(qla4xxx_get_conn_event_log(ha)); | |
690 | ||
691 | return QLA_SUCCESS; | |
692 | } | |
693 | ||
694 | static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) | |
695 | { | |
696 | unsigned long wtime; | |
697 | ||
698 | /* Flush the 0x8014 AEN from the firmware as a result of | |
699 | * Auto connect. We are basically doing get_firmware_ddb() | |
700 | * to determine whether we need to log back in or not. | |
701 | * Trying to do a set ddb before we have processed 0x8014 | |
702 | * will result in another set_ddb() for the same ddb. In other | |
703 | * words there will be stale entries in the aen_q. | |
704 | */ | |
705 | wtime = jiffies + (2 * HZ); | |
706 | do { | |
707 | if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) | |
708 | if (ha->firmware_state & (BIT_2 | BIT_0)) | |
709 | return; | |
710 | ||
711 | if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) | |
712 | qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); | |
713 | ||
714 | msleep(1000); | |
715 | } while (!time_after_eq(jiffies, wtime)); | |
716 | ||
717 | } | |
718 | ||
719 | static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) | |
720 | { | |
721 | uint16_t fw_ddb_index; | |
722 | int status = QLA_SUCCESS; | |
723 | ||
724 | /* free the ddb list if is not empty */ | |
725 | if (!list_empty(&ha->ddb_list)) | |
726 | qla4xxx_free_ddb_list(ha); | |
727 | ||
728 | for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++) | |
729 | ha->fw_ddb_index_map[fw_ddb_index] = | |
730 | (struct ddb_entry *)INVALID_ENTRY; | |
731 | ||
732 | ha->tot_ddbs = 0; | |
733 | ||
734 | qla4xxx_flush_AENS(ha); | |
735 | ||
736 | /* | |
737 | * First perform device discovery for active | |
738 | * fw ddb indexes and build | |
739 | * ddb list. | |
740 | */ | |
741 | if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) | |
742 | return status; | |
743 | ||
744 | /* Wait for an AEN */ | |
745 | qla4xxx_devices_ready(ha); | |
746 | ||
747 | /* | |
748 | * Targets can come online after the inital discovery, so processing | |
749 | * the aens here will catch them. | |
750 | */ | |
751 | if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) | |
752 | qla4xxx_process_aen(ha, PROCESS_ALL_AENS); | |
753 | ||
754 | return status; | |
755 | } | |
756 | ||
757 | /** | |
758 | * qla4xxx_update_ddb_list - update the driver ddb list | |
759 | * @ha: pointer to host adapter structure. | |
760 | * | |
761 | * This routine obtains device information from the F/W database after | |
762 | * firmware or adapter resets. The device table is preserved. | |
763 | **/ | |
764 | int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha) | |
765 | { | |
766 | int status = QLA_SUCCESS; | |
767 | struct ddb_entry *ddb_entry, *detemp; | |
768 | ||
769 | /* Update the device information for all devices. */ | |
770 | list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) { | |
771 | qla4xxx_update_ddb_entry(ha, ddb_entry, | |
772 | ddb_entry->fw_ddb_index); | |
773 | if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { | |
774 | atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); | |
775 | DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked " | |
776 | "ONLINE\n", ha->host_no, __func__, | |
777 | ddb_entry->fw_ddb_index)); | |
778 | } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) | |
779 | qla4xxx_mark_device_missing(ha, ddb_entry); | |
780 | } | |
781 | return status; | |
782 | } | |
783 | ||
784 | /** | |
785 | * qla4xxx_relogin_device - re-establish session | |
786 | * @ha: Pointer to host adapter structure. | |
787 | * @ddb_entry: Pointer to device database entry | |
788 | * | |
789 | * This routine does a session relogin with the specified device. | |
790 | * The ddb entry must be assigned prior to making this call. | |
791 | **/ | |
792 | int qla4xxx_relogin_device(struct scsi_qla_host *ha, | |
793 | struct ddb_entry * ddb_entry) | |
794 | { | |
795 | uint16_t relogin_timer; | |
796 | ||
797 | relogin_timer = max(ddb_entry->default_relogin_timeout, | |
798 | (uint16_t)RELOGIN_TOV); | |
799 | atomic_set(&ddb_entry->relogin_timer, relogin_timer); | |
800 | ||
801 | DEBUG2(printk("scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, | |
802 | ddb_entry->fw_ddb_index, relogin_timer)); | |
803 | ||
804 | qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0); | |
805 | ||
806 | return QLA_SUCCESS; | |
807 | } | |
808 | ||
809 | /** | |
810 | * qla4010_get_topcat_presence - check if it is QLA4040 TopCat Chip | |
811 | * @ha: Pointer to host adapter structure. | |
812 | * | |
813 | **/ | |
814 | static int qla4010_get_topcat_presence(struct scsi_qla_host *ha) | |
815 | { | |
816 | unsigned long flags; | |
817 | uint16_t topcat; | |
818 | ||
819 | if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) | |
820 | return QLA_ERROR; | |
821 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
822 | topcat = rd_nvram_word(ha, offsetof(struct eeprom_data, | |
823 | isp4010.topcat)); | |
824 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
825 | ||
826 | if ((topcat & TOPCAT_MASK) == TOPCAT_PRESENT) | |
827 | set_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags); | |
828 | else | |
829 | clear_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags); | |
830 | ql4xxx_unlock_nvram(ha); | |
831 | return QLA_SUCCESS; | |
832 | } | |
833 | ||
834 | ||
835 | static int qla4xxx_config_nvram(struct scsi_qla_host *ha) | |
836 | { | |
837 | unsigned long flags; | |
838 | union external_hw_config_reg extHwConfig; | |
839 | ||
840 | DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, | |
841 | __func__)); | |
842 | if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) | |
843 | return (QLA_ERROR); | |
844 | if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { | |
845 | ql4xxx_unlock_flash(ha); | |
846 | return (QLA_ERROR); | |
847 | } | |
848 | ||
849 | /* Get EEPRom Parameters from NVRAM and validate */ | |
850 | dev_info(&ha->pdev->dev, "Configuring NVRAM ...\n"); | |
851 | if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { | |
852 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
853 | extHwConfig.Asuint32_t = | |
854 | rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); | |
855 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
856 | } else { | |
857 | /* | |
858 | * QLogic adapters should always have a valid NVRAM. | |
859 | * If not valid, do not load. | |
860 | */ | |
861 | dev_warn(&ha->pdev->dev, | |
862 | "scsi%ld: %s: EEProm checksum invalid. " | |
863 | "Please update your EEPROM\n", ha->host_no, | |
864 | __func__); | |
865 | ||
866 | /* set defaults */ | |
867 | if (is_qla4010(ha)) | |
868 | extHwConfig.Asuint32_t = 0x1912; | |
869 | else if (is_qla4022(ha)) | |
870 | extHwConfig.Asuint32_t = 0x0023; | |
871 | } | |
872 | DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", | |
873 | ha->host_no, __func__, extHwConfig.Asuint32_t)); | |
874 | ||
875 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
876 | writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); | |
877 | readl(isp_ext_hw_conf(ha)); | |
878 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
879 | ||
880 | ql4xxx_unlock_nvram(ha); | |
881 | ql4xxx_unlock_flash(ha); | |
882 | ||
883 | return (QLA_SUCCESS); | |
884 | } | |
885 | ||
886 | static void qla4x00_pci_config(struct scsi_qla_host *ha) | |
887 | { | |
888 | uint16_t w, mwi; | |
889 | ||
890 | dev_info(&ha->pdev->dev, "Configuring PCI space...\n"); | |
891 | ||
892 | pci_set_master(ha->pdev); | |
893 | mwi = 0; | |
894 | if (pci_set_mwi(ha->pdev)) | |
895 | mwi = PCI_COMMAND_INVALIDATE; | |
896 | /* | |
897 | * We want to respect framework's setting of PCI configuration space | |
898 | * command register and also want to make sure that all bits of | |
899 | * interest to us are properly set in command register. | |
900 | */ | |
901 | pci_read_config_word(ha->pdev, PCI_COMMAND, &w); | |
902 | w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR); | |
903 | w &= ~PCI_COMMAND_INTX_DISABLE; | |
904 | pci_write_config_word(ha->pdev, PCI_COMMAND, w); | |
905 | } | |
906 | ||
907 | static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) | |
908 | { | |
909 | int status = QLA_ERROR; | |
910 | uint32_t max_wait_time; | |
911 | unsigned long flags; | |
912 | uint32_t mbox_status; | |
913 | ||
914 | dev_info(&ha->pdev->dev, "Starting firmware ...\n"); | |
915 | ||
916 | /* | |
917 | * Start firmware from flash ROM | |
918 | * | |
919 | * WORKAROUND: Stuff a non-constant value that the firmware can | |
920 | * use as a seed for a random number generator in MB7 prior to | |
921 | * setting BOOT_ENABLE. Fixes problem where the TCP | |
922 | * connections use the same TCP ports after each reboot, | |
923 | * causing some connections to not get re-established. | |
924 | */ | |
925 | DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", | |
926 | ha->host_no, __func__)); | |
927 | ||
928 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
929 | writel(jiffies, &ha->reg->mailbox[7]); | |
930 | if (is_qla4022(ha)) | |
931 | writel(set_rmask(NVR_WRITE_ENABLE), | |
932 | &ha->reg->u1.isp4022.nvram); | |
933 | ||
934 | writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); | |
935 | readl(&ha->reg->ctrl_status); | |
936 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
937 | ||
938 | /* Wait for firmware to come UP. */ | |
939 | max_wait_time = FIRMWARE_UP_TOV * 4; | |
940 | do { | |
941 | uint32_t ctrl_status; | |
942 | ||
943 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
944 | ctrl_status = readw(&ha->reg->ctrl_status); | |
945 | mbox_status = readw(&ha->reg->mailbox[0]); | |
946 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
947 | ||
948 | if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) | |
949 | break; | |
950 | if (mbox_status == MBOX_STS_COMMAND_COMPLETE) | |
951 | break; | |
952 | ||
953 | DEBUG2(printk("scsi%ld: %s: Waiting for boot firmware to " | |
954 | "complete... ctrl_sts=0x%x, remaining=%d\n", | |
955 | ha->host_no, __func__, ctrl_status, | |
956 | max_wait_time)); | |
957 | ||
958 | msleep(250); | |
959 | } while ((max_wait_time--)); | |
960 | ||
961 | if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { | |
962 | DEBUG(printk("scsi%ld: %s: Firmware has started\n", | |
963 | ha->host_no, __func__)); | |
964 | ||
965 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
966 | writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), | |
967 | &ha->reg->ctrl_status); | |
968 | readl(&ha->reg->ctrl_status); | |
969 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
970 | ||
971 | status = QLA_SUCCESS; | |
972 | } else { | |
973 | printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " | |
974 | "- mbox status 0x%x\n", ha->host_no, __func__, | |
975 | mbox_status); | |
976 | status = QLA_ERROR; | |
977 | } | |
978 | return status; | |
979 | } | |
980 | ||
981 | static int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) | |
982 | { | |
983 | #define QL4_LOCK_DRVR_WAIT 300 | |
984 | #define QL4_LOCK_DRVR_SLEEP 100 | |
985 | ||
986 | int drvr_wait = QL4_LOCK_DRVR_WAIT; | |
987 | while (drvr_wait) { | |
988 | if (ql4xxx_lock_drvr(a) == 0) { | |
989 | msleep(QL4_LOCK_DRVR_SLEEP); | |
990 | if (drvr_wait) { | |
991 | DEBUG2(printk("scsi%ld: %s: Waiting for " | |
992 | "Global Init Semaphore...n", | |
993 | a->host_no, | |
994 | __func__)); | |
995 | } | |
996 | drvr_wait -= QL4_LOCK_DRVR_SLEEP; | |
997 | } else { | |
998 | DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " | |
999 | "acquired.n", a->host_no, __func__)); | |
1000 | return QLA_SUCCESS; | |
1001 | } | |
1002 | } | |
1003 | return QLA_ERROR; | |
1004 | } | |
1005 | ||
1006 | /** | |
1007 | * qla4xxx_start_firmware - starts qla4xxx firmware | |
1008 | * @ha: Pointer to host adapter structure. | |
1009 | * | |
1010 | * This routine performs the neccessary steps to start the firmware for | |
1011 | * the QLA4010 adapter. | |
1012 | **/ | |
1013 | static int qla4xxx_start_firmware(struct scsi_qla_host *ha) | |
1014 | { | |
1015 | unsigned long flags = 0; | |
1016 | uint32_t mbox_status; | |
1017 | int status = QLA_ERROR; | |
1018 | int soft_reset = 1; | |
1019 | int config_chip = 0; | |
1020 | ||
1021 | if (is_qla4010(ha)){ | |
1022 | if (qla4010_get_topcat_presence(ha) != QLA_SUCCESS) | |
1023 | return QLA_ERROR; | |
1024 | } | |
1025 | ||
1026 | if (is_qla4022(ha)) | |
1027 | ql4xxx_set_mac_number(ha); | |
1028 | ||
1029 | if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) | |
1030 | return QLA_ERROR; | |
1031 | ||
1032 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1033 | ||
1034 | DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, | |
1035 | __func__, readw(isp_port_ctrl(ha)))); | |
1036 | DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, | |
1037 | __func__, readw(isp_port_status(ha)))); | |
1038 | ||
1039 | /* Is Hardware already initialized? */ | |
1040 | if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { | |
1041 | DEBUG(printk("scsi%ld: %s: Hardware has already been " | |
1042 | "initialized\n", ha->host_no, __func__)); | |
1043 | ||
1044 | /* Receive firmware boot acknowledgement */ | |
1045 | mbox_status = readw(&ha->reg->mailbox[0]); | |
1046 | ||
1047 | DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " | |
1048 | "0x%x\n", ha->host_no, __func__, mbox_status)); | |
1049 | ||
1050 | /* Is firmware already booted? */ | |
1051 | if (mbox_status == 0) { | |
1052 | /* F/W not running, must be config by net driver */ | |
1053 | config_chip = 1; | |
1054 | soft_reset = 0; | |
1055 | } else { | |
1056 | writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), | |
1057 | &ha->reg->ctrl_status); | |
1058 | readl(&ha->reg->ctrl_status); | |
1059 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1060 | if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { | |
1061 | DEBUG2(printk("scsi%ld: %s: Get firmware " | |
1062 | "state -- state = 0x%x\n", | |
1063 | ha->host_no, | |
1064 | __func__, ha->firmware_state)); | |
1065 | /* F/W is running */ | |
1066 | if (ha->firmware_state & | |
1067 | FW_STATE_CONFIG_WAIT) { | |
1068 | DEBUG2(printk("scsi%ld: %s: Firmware " | |
1069 | "in known state -- " | |
1070 | "config and " | |
1071 | "boot, state = 0x%x\n", | |
1072 | ha->host_no, __func__, | |
1073 | ha->firmware_state)); | |
1074 | config_chip = 1; | |
1075 | soft_reset = 0; | |
1076 | } | |
1077 | } else { | |
1078 | DEBUG2(printk("scsi%ld: %s: Firmware in " | |
1079 | "unknown state -- resetting," | |
1080 | " state = " | |
1081 | "0x%x\n", ha->host_no, __func__, | |
1082 | ha->firmware_state)); | |
1083 | } | |
1084 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1085 | } | |
1086 | } else { | |
1087 | DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " | |
1088 | "started - resetting\n", ha->host_no, __func__)); | |
1089 | } | |
1090 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1091 | ||
1092 | DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", | |
1093 | ha->host_no, __func__, soft_reset, config_chip)); | |
1094 | if (soft_reset) { | |
1095 | DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, | |
1096 | __func__)); | |
1097 | status = qla4xxx_soft_reset(ha); | |
1098 | if (status == QLA_ERROR) { | |
1099 | DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", | |
1100 | ha->host_no, __func__)); | |
1101 | ql4xxx_unlock_drvr(ha); | |
1102 | return QLA_ERROR; | |
1103 | } | |
1104 | config_chip = 1; | |
1105 | ||
1106 | /* Reset clears the semaphore, so aquire again */ | |
1107 | if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) | |
1108 | return QLA_ERROR; | |
1109 | } | |
1110 | ||
1111 | if (config_chip) { | |
1112 | if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) | |
1113 | status = qla4xxx_start_firmware_from_flash(ha); | |
1114 | } | |
1115 | ||
1116 | ql4xxx_unlock_drvr(ha); | |
1117 | if (status == QLA_SUCCESS) { | |
1118 | qla4xxx_get_fw_version(ha); | |
1119 | if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) | |
1120 | qla4xxx_get_crash_record(ha); | |
1121 | } else { | |
1122 | DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", | |
1123 | ha->host_no, __func__)); | |
1124 | } | |
1125 | return status; | |
1126 | } | |
1127 | ||
1128 | ||
1129 | /** | |
1130 | * qla4xxx_initialize_adapter - initiailizes hba | |
1131 | * @ha: Pointer to host adapter structure. | |
1132 | * @renew_ddb_list: Indicates what to do with the adapter's ddb list | |
1133 | * after adapter recovery has completed. | |
1134 | * 0=preserve ddb list, 1=destroy and rebuild ddb list | |
1135 | * | |
1136 | * This routine parforms all of the steps necessary to initialize the adapter. | |
1137 | * | |
1138 | **/ | |
1139 | int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, | |
1140 | uint8_t renew_ddb_list) | |
1141 | { | |
1142 | int status = QLA_ERROR; | |
1143 | int8_t ip_address[IP_ADDR_LEN] = {0} ; | |
1144 | ||
1145 | ha->eeprom_cmd_data = 0; | |
1146 | ||
1147 | qla4x00_pci_config(ha); | |
1148 | ||
1149 | qla4xxx_disable_intrs(ha); | |
1150 | ||
1151 | /* Initialize the Host adapter request/response queues and firmware */ | |
1152 | if (qla4xxx_start_firmware(ha) == QLA_ERROR) | |
1153 | return status; | |
1154 | ||
1155 | if (qla4xxx_validate_mac_address(ha) == QLA_ERROR) | |
1156 | return status; | |
1157 | ||
1158 | if (qla4xxx_init_local_data(ha) == QLA_ERROR) | |
1159 | return status; | |
1160 | ||
1161 | status = qla4xxx_init_firmware(ha); | |
1162 | if (status == QLA_ERROR) | |
1163 | return status; | |
1164 | ||
1165 | /* | |
1166 | * FW is waiting to get an IP address from DHCP server: Skip building | |
1167 | * the ddb_list and wait for DHCP lease acquired aen to come in | |
1168 | * followed by 0x8014 aen" to trigger the tgt discovery process. | |
1169 | */ | |
1170 | if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS) | |
1171 | return status; | |
1172 | ||
1173 | /* Skip device discovery if ip and subnet is zero */ | |
1174 | if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 || | |
1175 | memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0) | |
1176 | return status; | |
1177 | ||
1178 | if (renew_ddb_list == PRESERVE_DDB_LIST) { | |
1179 | /* | |
1180 | * We want to preserve lun states (i.e. suspended, etc.) | |
1181 | * for recovery initiated by the driver. So just update | |
1182 | * the device states for the existing ddb_list. | |
1183 | */ | |
1184 | qla4xxx_reinitialize_ddb_list(ha); | |
1185 | } else if (renew_ddb_list == REBUILD_DDB_LIST) { | |
1186 | /* | |
1187 | * We want to build the ddb_list from scratch during | |
1188 | * driver initialization and recovery initiated by the | |
1189 | * INT_HBA_RESET IOCTL. | |
1190 | */ | |
1191 | status = qla4xxx_initialize_ddb_list(ha); | |
1192 | if (status == QLA_ERROR) { | |
1193 | DEBUG2(printk("%s(%ld) Error occurred during build" | |
1194 | "ddb list\n", __func__, ha->host_no)); | |
1195 | goto exit_init_hba; | |
1196 | } | |
1197 | ||
1198 | } | |
1199 | if (!ha->tot_ddbs) { | |
1200 | DEBUG2(printk("scsi%ld: Failed to initialize devices or none " | |
1201 | "present in Firmware device database\n", | |
1202 | ha->host_no)); | |
1203 | } | |
1204 | ||
1205 | exit_init_hba: | |
1206 | return status; | |
1207 | ||
1208 | } | |
1209 | ||
1210 | /** | |
1211 | * qla4xxx_add_device_dynamically - ddb addition due to an AEN | |
1212 | * @ha: Pointer to host adapter structure. | |
1213 | * @fw_ddb_index: Firmware's device database index | |
1214 | * | |
1215 | * This routine processes adds a device as a result of an 8014h AEN. | |
1216 | **/ | |
1217 | static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha, | |
1218 | uint32_t fw_ddb_index) | |
1219 | { | |
1220 | struct ddb_entry * ddb_entry; | |
1221 | ||
1222 | /* First allocate a device structure */ | |
1223 | ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index); | |
1224 | if (ddb_entry == NULL) { | |
1225 | DEBUG2(printk(KERN_WARNING | |
1226 | "scsi%ld: Unable to allocate memory to add " | |
1227 | "fw_ddb_index %d\n", ha->host_no, fw_ddb_index)); | |
1228 | return; | |
1229 | } | |
1230 | ||
1231 | if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == | |
1232 | QLA_ERROR) { | |
1233 | ha->fw_ddb_index_map[fw_ddb_index] = | |
1234 | (struct ddb_entry *)INVALID_ENTRY; | |
1235 | DEBUG2(printk(KERN_WARNING | |
1236 | "scsi%ld: failed to add new device at index " | |
1237 | "[%d]\n Unable to retrieve fw ddb entry\n", | |
1238 | ha->host_no, fw_ddb_index)); | |
1239 | qla4xxx_free_ddb(ha, ddb_entry); | |
1240 | return; | |
1241 | } | |
1242 | ||
1243 | if (qla4xxx_add_sess(ddb_entry)) { | |
1244 | DEBUG2(printk(KERN_WARNING | |
1245 | "scsi%ld: failed to add new device at index " | |
1246 | "[%d]\n Unable to add connection and session\n", | |
1247 | ha->host_no, fw_ddb_index)); | |
1248 | qla4xxx_free_ddb(ha, ddb_entry); | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | /** | |
1253 | * qla4xxx_process_ddb_changed - process ddb state change | |
1254 | * @ha - Pointer to host adapter structure. | |
1255 | * @fw_ddb_index - Firmware's device database index | |
1256 | * @state - Device state | |
1257 | * | |
1258 | * This routine processes a Decive Database Changed AEN Event. | |
1259 | **/ | |
1260 | int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, | |
1261 | uint32_t fw_ddb_index, uint32_t state) | |
1262 | { | |
1263 | struct ddb_entry * ddb_entry; | |
1264 | uint32_t old_fw_ddb_device_state; | |
1265 | ||
1266 | /* check for out of range index */ | |
1267 | if (fw_ddb_index >= MAX_DDB_ENTRIES) | |
1268 | return QLA_ERROR; | |
1269 | ||
1270 | /* Get the corresponging ddb entry */ | |
1271 | ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); | |
1272 | /* Device does not currently exist in our database. */ | |
1273 | if (ddb_entry == NULL) { | |
1274 | if (state == DDB_DS_SESSION_ACTIVE) | |
1275 | qla4xxx_add_device_dynamically(ha, fw_ddb_index); | |
1276 | return QLA_SUCCESS; | |
1277 | } | |
1278 | ||
1279 | /* Device already exists in our database. */ | |
1280 | old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; | |
1281 | DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for " | |
1282 | "index [%d]\n", ha->host_no, __func__, | |
1283 | ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); | |
1284 | if (old_fw_ddb_device_state == state && | |
1285 | state == DDB_DS_SESSION_ACTIVE) { | |
1286 | /* Do nothing, state not changed. */ | |
1287 | return QLA_SUCCESS; | |
1288 | } | |
1289 | ||
1290 | ddb_entry->fw_ddb_device_state = state; | |
1291 | /* Device is back online. */ | |
1292 | if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { | |
1293 | atomic_set(&ddb_entry->port_down_timer, | |
1294 | ha->port_down_retry_count); | |
1295 | atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); | |
1296 | atomic_set(&ddb_entry->relogin_retry_count, 0); | |
1297 | atomic_set(&ddb_entry->relogin_timer, 0); | |
1298 | clear_bit(DF_RELOGIN, &ddb_entry->flags); | |
1299 | clear_bit(DF_NO_RELOGIN, &ddb_entry->flags); | |
1300 | iscsi_if_create_session_done(ddb_entry->conn); | |
1301 | /* | |
1302 | * Change the lun state to READY in case the lun TIMEOUT before | |
1303 | * the device came back. | |
1304 | */ | |
1305 | } else { | |
1306 | /* Device went away, try to relogin. */ | |
1307 | /* Mark device missing */ | |
1308 | if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) | |
1309 | qla4xxx_mark_device_missing(ha, ddb_entry); | |
1310 | /* | |
1311 | * Relogin if device state changed to a not active state. | |
1312 | * However, do not relogin if this aen is a result of an IOCTL | |
1313 | * logout (DF_NO_RELOGIN) or if this is a discovered device. | |
1314 | */ | |
1315 | if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && | |
1316 | !test_bit(DF_RELOGIN, &ddb_entry->flags) && | |
1317 | !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) && | |
1318 | !test_bit(DF_ISNS_DISCOVERED, &ddb_entry->flags)) { | |
1319 | /* | |
1320 | * This triggers a relogin. After the relogin_timer | |
1321 | * expires, the relogin gets scheduled. We must wait a | |
1322 | * minimum amount of time since receiving an 0x8014 AEN | |
1323 | * with failed device_state or a logout response before | |
1324 | * we can issue another relogin. | |
1325 | */ | |
1326 | /* Firmware padds this timeout: (time2wait +1). | |
1327 | * Driver retry to login should be longer than F/W. | |
1328 | * Otherwise F/W will fail | |
1329 | * set_ddb() mbx cmd with 0x4005 since it still | |
1330 | * counting down its time2wait. | |
1331 | */ | |
1332 | atomic_set(&ddb_entry->relogin_timer, 0); | |
1333 | atomic_set(&ddb_entry->retry_relogin_timer, | |
1334 | ddb_entry->default_time2wait + 4); | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | return QLA_SUCCESS; | |
1339 | } | |
1340 |